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Iberus
Vol. 28 (1)
REVISTA DE LA
SOCIEDAD ESPAÑOLA
DE MALACOLOGÍA
Oviedo, junio 2010
Iberus
Revista de la
SOCIEDAD ESPAÑOLA DE MALACOLOGÍA
Comité DE REDACCIÓN (BOARD OF EDITORS)
EDITOR DE PUBLICACIONES (EDITOR=-IN-CHIEF)
Serge Gofas Universidad de Málaga, España
DIRECTOR DE REDACCIÓN (EXECUTIVE EDITOR)
Gonzalo Rodríguez Casero Apdo. 156, Mieres del Camino, Asturias, España
EDITORA EJECUTIVA (MANAGING EDITOR)
Eugenia M* Martínez Cueto-Felgueroso Apdo. 156, Mieres del Camino, Asturias, España
EDITORES ADJUNTOS (ASSOCIATE EDITORS)
Francisco Javier Conde de Saro Embajada de España, Japón
Benjamín Gómez Moliner Universidad del País Vasco, Vitoria, España
Angel Antonio Luque del Villar Universidad Autónoma de Madrid, Madrid, España
Emilio Rolán Mosquera Universidad de Vigo, Vigo, España
José Templado González Museo Nacional de Ciencias Naturales, ESIC, Madrid, España
Jesús S. Troncoso Universidad de Vigo, Vigo, España
Comité EDITORIAL (BOARD OF REVIEWERS)
Kepa Altonaga Sustacha Universidad del País Vasco, Bilbao, España
Eduardo Angulo Pinedo Universidad del País Vasco, Bilbao, España
Rafael Araujo Armero Museo Nacional de Ciencias Naturales, Madrid, España
Thierry Backeljau Institut Royal des Sciences Naturelles de Belgique, Bruselas, Bélgica
Rijdiger Bieler The Field Museum, Chicago, Estados Unidos
Sigurd v. Boletzky Laboratoire Arago, Banyuls-sur-Mer, Francia
Jose Castillejo Murillo Universidad de Santiago de Compostela, Santiago de Compostela, España
Karl Edlinger Noturhistorisches Museum Wien, Viena, Austria
Antonio M. de Frias Martins Universidade dos Acores, Acores, Portugal
José Carlos García Gómez Universidad de Sevilla, Sevilla, España
Gonzalo Giribet de Sebastián Harvard University, EE.UU.
Edmund Gittenberger National Natuurhistorisch Museum, Leiden, Holanda
Angel Guerra Sierra Instituto de Investigaciones Marinas, CSIC, Vigo, España
Gerhard Haszprunar Zoologische Staatssammlung Múnchen, Múnchen, Alemania
Yuri |. Kantor A.N. Severtzov Institute of Ecology and Evolution, Moscú, Rusia
María Yolanda Manga González Estación Agrícola Experimental, CSIC, León, España
Jordi Martinell Callico Universidad de Barcelona, Barcelona, España
Ron K. 0'Dor Dalhousie University, Halifax, Canada
Tokashi Okutani Nihon University, Fujisawa City, Japón
Marco Oliverio Universitá di Roma “La Sapienza”, Roma, Italia
Pablo E. Penchaszadeh Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”, Buenos Aires, Argentina
Winston F. Ponder Australian Museum, Sydney, Australia
Carlos Enrique Prieto Sierra Universidad del País Vasco, Bilbao, España
Me de los Ángeles Ramos Sánchez Museo Nacional de Ciencias Naturales, CSIC, Madrid, España
Francisco Javier Rocha Valdés Instituto de Investigaciones Marinas, CSIC, Vigo, España
Paul 6. Rodhouse British Antarctic Survey, Cambridge, Reino Unido
Joandoménec Ros ¡ Aragones Universidad de Barcelona, Barcelona, España
María Carmen Salas Casanovas Universidad de Málaga, Málaga, España
Gerhard Steiner Institut fúr Zoologie der Universitát Wien, Viena, Austria
Victoriano Urgorri Carrasco Universidad de Santiago de Compostela, Santiago de Compostela, España
Anders Warén Swedish Museum of Natural History, Estocolmo, Suecia
PORTADA DE lberus
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nombre a la revista. Dibujo realizado por José Luis González Rebollar “Toza”.
Iberus
ys A IN Y 00 TIA
(Curs 19 2010 m0)
o A l. q B la ¡ES vs
REVISTA DE LA
SOCIEDAD ESPANOLA
DE MALACOLOGIA
Vol. 28 (1) Oviedo, junio 2010
Iberus
Revista de la
SOCIEDAD ESPAÑOLA DE MALACOLOGÍA
Iberus publica trabajos que traten sobre cualquier aspecto relacionado con la Malacología. Se
admiten también notas breves. /berus edita un volumen anual que se compone de dos o más números.
INSTRUCCIONES PARA LOS AUTORES
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Los trabajos se entregarán por triplicado (original y dos copias). Se recomienda a los autores leer
cuidadosamente las normas de publicación que se incluyen en cada número de la revista.
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Los resumenes de los artículos editados en esta revista se publican en Aquatic Science
and Fisheries Abstracts (ASFA) y en el Zoological Records, BIOSIS.
Contents list published in Aquatic Science and Fisheries Abstracts and Zoological Records,
BIOSIS.
Dep. Leg. B-43072-81
ISSN 0212-3010
Diseño y maquetación: Gonzalo Rodríguez
Impresión: LOREDO, S. L. - Gijón
O Sociedad Española de Malacología —___—_—_——— Iberus, 28 (1): 1-11, 2010
Reproduction du mollusque envahisseur Corbicula flumi-
nea (O. E Miiller, 1774) (Bivalvia: Corbiculidae) et recru-
tement et distribution de ses juvéniles dans un canal de la
région toulousaine (France)
Reproducción del molusco invasor Corbicula fluminea (O. E Múller,
1774) (Bivalvia: Corbiculidae) y reclutamiento y distribución de sus
juveniles en un canal la región de Toulouse (France)
Charles DUBOIS et Alberto MARTÍNEZ-ORTÍ*
Recibido el 13-V-2009. Aceptado el 6-X-2009
RÉSUMÉ
Les données recueillies sur un cycle d'un an (mars 1993 — mars 1994) concernant l'incu-
bation des larves et le recrutement des ¡juvéniles du Corbicula fluminea, bivalve d'origine
asiatique introduites en Europe, sont présentées pour deux habitats différents (milieu du
canal et herbiers) d'un méme site du Canal Latéral, pres de Toulouse. La présence de
larves incubées au niveau des hémibranchies internes des adultes est observée durant 5
mois: de mi-mai á mi-octobre, ou deux périodes d'incubation se dégagent. Le nombre de
larves incubées s'éléve aá plusieurs milliers et se trouve proportionnel a la taille de la
coquille des adultes. Le recrutement des ¡uvéniles de taille comprise entre 1,5 et 2,5 mm
s'observe du mois d'aoút au mois de juin de l'année suivante, ou l'on peut également dis-
tinguer deux périodes: une premiere s'étalant d'aoút á novembre et une seconde débutant
en décembre jusqu'a juin. Selon l'habitat considéré, ces périodes de recrutement ont une
importance relative trés différentes: la premiere (fin été — automne], quasi-inexistante au
niveau des herbiers, est importante dans la zone profonde. Inversement, lors de la
seconde (hivers — début printemps), le nombre de ¡juvéniles par rapport au nombre
d'adultes est plus fort au niveau des herbiers. Cette différence dans le recrutement suggére
une migration ou une dispersion de la part de ces petits individus, notamment durant la
saison chaude ou de nombreux bateaux naviguent, créant des remous importants.
ABSTRACT
Data obtained over a cycle of one year (March 1993 — March 1994) regarding the incu-
bation of the larvae and the recruitment of the juveniles of Corbicula fluminea, bivalve of
Asian origin introduced in Europe, are shown for two different habitats (middle part of the
channel and vegetated area) of the same area of the Canal Latéral, near Toulouse
(France). The presence of incubated larvae in the inner demibranchs of the adults has
been observed during five months: from mid May to mid October, in which there are two
different periods of incubation. The number of incubated larvae amounts to several thou-
sands and is proportional to the shell size of the adults. The recruitment of the juveniles of
size between 1.5 and 2.5 mm is observed between August and June of the following
* Departament de Zoologia. Facultat de Ciencies Biológiques. Universitat de Valencia. c/. Dr. Moliner, 50. E-
46100 Burjassot (Valencia, Espagne) et Museu Valencia d'Historia Natural.
Iberus, 28 (1), 2010
year, where two periods can also be distinguished: the first one from August to November
and the second one from December until June. According to the considered habitat, these
periods of recruitment have a very different importance: the first one [end of summer —
autumn), almost non-existent at the vegetated level, is important in the deep zone. On the
contrary, in the second one (winter — beginning of spring), the number of juvenile in rela-
tion to the number of adults is higher in the vegetated area. This difference in the recruit-
ment suggests a migration or dispersion of these small individuals, particularly during
the warm season where a large number if boats are sailing, which can create important
eddies in the water column.
RESUMEN
Se muestran los datos obtenidos durante un ciclo de un año (marzo 1993 — marzo 1994)
sobre la incubación de las larvas y el reclutamiento de los juveniles de Corbicula flumi-
nea, bivalvo de origen asiático introducido en Europa, se muestran en dos hábitats dife-
rentes (centro del canal y zona lateral con vegetación) de un mismo lugar del Canal Laté-
ral, cerca de Toulouse (Francia). Se ha observado la presencia de larvas incubadas en las
hemibranquias internas de los ejemplares adultos durante cinco meses: desde mitad de
mayo a mitad de octubre, existiendo dos periodos diferentes de incubación. El número de
larvas incubadas es de varios miles y es proporcional al tamaño de la concha de los adul-
tos. El reclutamiento de los juveniles, de tamaño comprendido entre 1,5 y 2,5 mm, se
observa entre los meses de agosto y junio del año siguiente, donde se pueden igualmente
distinguir dos periodos: el primero desde agosto a noviembre y el segundo desde diciem-
bre hasta junio. Según el hábitat considerado, estos periodos de reclutamiento tienen una
importancia relativa muy diferente: el primero [final del verano — otoño), casi inexistente
al nivel de la zona de vegetación, es importante en la zona profunda. Inversamente, en el
segundo periodo (invierno — comienzo de la primavera), el número de ¡juveniles en rela-
ción al número de adultos es más elevado en la zona de vegetación. Esta diferencia en el
reclutamiento sugiere una migración o una dispersión de parte de estos pequeños indivi-
duos, especialmente durante la estación cálida, cuando numerosos barcos navegan por el
canal creando importantes remolinos en la columna de agua.
INTRODUCTION
Au début des années 1980, la pré-
sence du bivalve envahisseur Corbicula
fluminea (O.F. Múller, 1774) (Fig. 1A),
d'origine asiatique, fut signalée en
Europe occidentale pour la premiere fois
(MOUTHON, 1981). A l'heure actuelle, de
nombreux cours d'eau européens héber-
gent ce mollusque, qui fut décrit comme
une véritable peste aux Etats-Unis dont
la colonisation remonte aux années 1930
(Isom, 1986): le fleuve Rhin aux Pays-
Bas (BI] DE VAATE ET GREIDANUS-KLAAS,
1990), en Allemagne (BI DE VAATE, 1991;
DEN HARTOG, VAN DEN BRINK ET VAN
DER VELDE, 1992), en Belgique
(SWINNEN, LEYNEN, SABLON, DUVIVIER
ET VANMAELE, 1998), en Pologne (DOMA-
GALA, LABECKA, PILECKA-RAPACZ ET
MIGDALSKA, 2004; LABECKA, DOMAGALA
ET PILECKA-RAPACZ, 2005), en Répu-
blique Tcheque (BERAN, 2006) et au
Royaume Uni (BAKER, CLARKE ET
HOWwLETT, 1999; ALDRIDGE ET MULLER,
2001). En France les fleuves Dordogne,
Loire, Garomne, Rhóne, Seine, 1'Adour,
le Lot, le Canal du Midi et le Canal
Latéral, le Tarn et 11 Aude (MOUTHON,
1981; GIRARDL, 1989; TOURENO. ET PUJOL,
1991; GRUET, 1992; DuBo1s, 1995a, 1995b;
DuBoIs Er TOURENO, 1995; DUBOIS ET
ORIGNY, 1998; MOUTHON, 2001a, 2001b,
2003). En Espagne, la riviere Miño, le
Guadalquivir, l'Ebre, le Guadiana et le
Piedras sont également colonisées
(PÉREZ-QUINTERO, 1990, 2008; ARAUJO,
MORENO ET RAMOS, 1993), ainsi que l'es-
DuBoIs Er MARTÍNEZ-ORTÍ: Reproduction du Corbicula fluminea
tuaire du Tage, le Duero et les affluents
de Guadiana au Portugal (MOUTHON,
1981; ARAUJO ET AL., 1993; PÉREZ-QUIN-
TERO, 2008). ARAUJO ET AL. (1993) jugent
que seul C. fluminea colonise les cours
d'eaux francais et espagnols.
C. fluminea incube les larves au
niveau des hémibranchies internes des
adultes (Fig. 1B) jusqu'a leur libération
en pleine eau ou elles se dispersent par
flottaison (PRETZANT ET CHALERMWAT,
1984; Dubo1Is, 1995a, 1995b).
L'objet de cette publication s'inscrit
dans l'étude de la dynamique des
populations et dans l'analyse des
modalités de dispersion a l'échelle sai-
sonniere de C. fluminea, menées dans le
Canal Latéral, au nord de Toulouse
(FRANCE) (SITE DE LALANDE). DUBOIS ET
TOURENO (1995) ont réalisé une étude
préliminaire sur la zone profonde du
méme Canal toulousaine qui nous
continuons et nous présentons ici les
données recueillies en 1993-94 concer-
nant la reproduction et le recrutement
des juvéniles des deux sous-popula-
tions benthiques: celle habitant les
bords du canal, colonisé par des macro-
phytes immergés et celle habitant le
sédiment de la zone profonde; ainsi que
la répartition inter et intra-habitat
MATÉRIEL ET MÉTHODES
Le Canal Latéral, qui relie Toulouse
a Bordeaux (France) a une largeur
d'une vingtaine de metres et une pro-
fondeur de 2,5 m au centre du lit. Les
bords, sur une largeur d“environ 1,5 m,
sont peu profonds (0,5 m a 0,8 m) et sont
colonisés d'herbiers de macrophytes
immergés (Vallisneria spiralis L.).
Les 10 premiers centimetres de sédi-
ment sont composés de vase, tres enri-
chie en débris organiques (feuilles en
décomposition, essentiellement de pla-
tanes, qui bordent le canal). Plus profon-
dément, le sédiment est un limon argi-
leux progressivement réduit (sur
environ 15 cm), reposant sur une couche
d'argile imperméable.
La vitesse du courant, relativement
constante, s'éleve a 7 cm/s en moyenne.
La température a la mi-journée varie
entre 6 *C (janvier) et 25 *C (aoút); la
température maximale relevée étant de
DIE.
Pour l'étude de la reproduction nous
avons prélevé dans les herbiers, tous les
15 jours, 20 a 30 individus adultes [dont
la longueur antéro-postérieure maxi-
male L est supérieure a 10 mm, d'apres
ALDRIGE ET MC MAHON (1978)], de
maniere a suivre le nombre de larves
incubées dans les hémibranchies
internes (Fig. 1B). Pour cela, les spéci-
mens sélectionnés ont été fixés au
formol (a 10 %), puis disséqués: une
hémibranchie interne par individu a été
prélevée et délicatement lacérée afin de
recueillir les larves. Celles-ci sont alors
maintenues en suspension dans un
volume d'eau distillée. Des échantillons
(en général 5) de 4 ml sont prélevés (a
lVaide d'une seringue graduée), les
larves dénombrées et le nombre total
incubé est estimé. De cette maniere, l'er-
reur standard (SE= y (s?/n) avec s?=
variance, n= nombre d'échantillons) par
rapport a la moyenne n'excede jamais
5% pour un adulte gravide.
Pour le suivi de la structure de la
population, des prélevements quantita-
tifs ont été effectués a l'aide d'une benne
de type Eckman (surface= 225 cm)
pénétrant a une profondeur d'environ
10 cm dans le sédiment. A chaque cam-
pagne de terrain (une fois par mois), 6
échantillons de 2 bennes ont été récoltés
dans les herbiers et 8 échantillons de 4
bennes le long d'un transect dans la
zone profonde (sauf cas particuliers, cf
Tableau 1). Au laboratoire, les individus
sont triés du matériel retenu et mesurés
(L= longueur antéropostérieure maxi-
male, a 0,1 mm pres) sous une loupe
binoculaire pour L<10 mm (grossisse-
ment x10, précision: 0,05 mm) ou avec
un pied-a-coulisse pour L>10 mm (pré-
cision: 0,02 mm). Les plus petits spéci-
mens considérés ont une taille de 1,5
mm, et nous prendrons en compte dans
ce travail que des juvéniles de taille
comprise entre 1,5 et 2,5 mm.
RÉSULTATS
Iberus, 28 (1), 2010
Figure 1. Corbicula fluminea du Canal Latéral (Toulouse, France). A. Coquille (24,2 mm de
largeur). B. Hémibranchie interne avec des larves.
Figura 1. Corbicula fluminea del Canal Latéral (Toulouse, Francia). A. Concha (24,2 mm longitua).
B. Hemibranquia interna mostrando las larvas incubadas.
Incubation des larves
La période d'incubation des larves
dans les hémibranchies internes des
adultes dure 5 mois, de la mi-mai a la
mi-octobre (Fig. 2). Nous pouvons dis-
cerner 3 pics de fort taux d'incubation
(Tl= proportion d'adultes incubant des
larves, en %): un premier couvrant le
mois de juin (TI maximal= 90,5%) et les
deux suivants (TI maximal= 80,0% et
66% respectivement) qui couvrent les
mois d'aoút et septembre (Fig. 2).
Sur lensemble de la période d'incu-
bation, le nombre de larves est tres
DUBOIS ET MARTÍNEZ-ORTÍ: Reproduction du Corbicula fluminea
Tableau 1. Densité des juvéniles (1,5 — 2,5 mm) aux différentes dates de prélevement. Ne= nombre
d'échantillons; Nb= nombre de bennes pour un échantillon; dens= densité en ind./m?; SE= erreur
standard relative (en %).
Tabla 1. Densidad de juveniles (1,5 — 2,5 mm) en diferentes periodos de recolección. Ne= número de mues-
tras; Nb= número de dragas por muestra; dens= densidad en ind./m?; SE= error estándar relativo (en %).
ZONE PROFONDE
Date Ne Nb dens SE (9)
23.09:73 4 5 120 26,3
20.04.93 8 4 178 11558
18.05.93 8 4 143 218
22.06.93 8 4 46 16,1
20.07.93 8 4 0 0,0
23.08.93 6 4 254 22,6
20.09.93 8 4 340 16,4
18.10.93 8 4 413 14,4
ANOS 8 4 182 16,6
17.01.94 8 4 265 14,4
variable. Le nombre moyen par hémi-
branchie de larves trouvées dans un
exemplaire adulte de taille moyenne est
de 2114 (Fig. 3). Cependant, le maximum
observé est proportionnel a la taille de
l'individu mature considéré. De sorte que
nous avons pu établir la relation:
Nm= - 8568 + 691 L (mm) (1)
ou:
Nm= nombre maximal théorique de
larves par hémibranchie interne.
L (mm)= taille (en mm) de l'adulte
considéré.
Parmi les adultes gravides, nous
avons alors calculé le “taux moyen de
remplissage hémibranchial” (TRHg) a
chaque date de prélevement. Nous défi-
nissons TRHg comme la moyenne, sur
l'ensemble des individus gravides d'un
prélevement, du pourcentage observé
par rapport au nombre maximal théo-
rique:
TRHg=1/n) (Ni / Nmi)
i=1
avec:
HERBIERS
Date Ne Nb dens SE(%)
23.03.93 l 5 2027
30.04.93 5 2 876 1117
28.05.93 6 2 1178 1153
28.06.93 6 2 159 19)
21.07.93 6 2 3) 46,1
30.08.93 6 2 48 49 7
28.09.93 6 2 385 31,5
26.10.93 6 2 122 38,9
2993 6 2 81 5,2
ZONE 6 Í 215 28,5
02.02.94 6 2 911 23,6
n= nombre d'adultes gravides 1
observé.
Ni= nombre observé de larves incu-
bées par hémibranchie interne de
l'adulte i.
Nmi= nombre maximal théorique de
larves incubées par hémibranchie
interne de l'adulte i, obtenu d'apres (1).
Pour un prélevement, nous pouvons
considérer que le taux moyen de rem-
plissage hémibranchial est indépendant
de la structure fréquence-taille de
l'échantillon (la proportion Ni/Nmi est
indépendante de la taille, contrairement
a Ni), si bien que les valeurs TRHg sont
immédiatement comparables entre elles
(Fig. 3), et peuvent étre directement
appliquées a la population (dont la
structure est différente de celle des
échantillons).
Le taux moyen de remplissage
TRHg connaít une évolution similaire a
celle du taux d'incubation Tl, avec deux
périodes qui se dégagent (Fig. 2): une
premiere couvrant le mois du juin
(MRS timaximale "65,5. ..70), et une
seconde comprenant plusieurs pics, de
juillet (TRHg maximal= 54,9%) a début
Iberus, 28 (1), 2010
TAUX (%)
Nombre (N) de larves incubees
2
s0— INCUBATION
SN
7 40
Í 30— E
ES 20 Á 2 TRHt= TI. TRHg A
10 sE
a LN
RECRUTEMENT
600
.-
y
A A Herbiers JP Zone profonde
Z 450 1 4
O /
OS
==
A a
5 300 ss
Y NN
Z / M
%
150 id Ñ
/
ca /
a , B
A ss
EN ¿e?
0
4 03 04 05 06 07 08 09 10 11 12 01 02 03
1993 1994
MOIS
Figure 2. Evolution temporelle du taux d'incubation (TI, en %) et Pindice de remplissage hémi-
branchial des adultes gravides (PRHg, en %). Figure 3. Nombre de larves incubées en fonction de
la taille des adultes gravides. Les carrés noirs représentent les valeurs maximales observées, á partir
desquelles fut établie la régression linéaire. Figure 4. A: Evolution temporelle de Pindice de rem-
plissage hémibranchial de la population totale d'adultes (TRHt, en %); B: Evolution temporelle
du nombre de juvéniles de la premiére classe de taille (1,5-2,5 mm) rapportée au nombre
d'adultes, au niveau des herbiers et de la zone profonde.
Figura 2. Evolución temporal de la tasa de incubación (TL, en %) y el índice de rellenado hemibran-
quial de los adultos grávidos (TRHg, en %). Figura 3. Número de larvas incubadas respecto al tamaño
de los adultos grávidos. Los cuadros negros representan los valores máximos observados, a partir de los
cuales se estableció la regresión lineal. Figura 4. A: Evolución temporal del índice de rellenado hemi-
branquial de la población total de adultos (IRHt, en %); B: Evolución temporal del número de juveni-
les de la primera clase de tamaño (1,5-2,5 mm) en función del número de adultos, a nivel de la vegeta-
ción y de la zona profunda.
DUBOIS Er MARTÍNEZ-ORTÍ: Reproduction du Corbicula fluminea
Tableau H. Parametres de la relation puissance de Taylor: S?= aXP. Dindice d'agrégation “b” est
donné avec un intervalle de confiance de 95%. R*= coefficient de variation; p= niveau de probabi-
lité du test de Student.
Tabla II. Parámetros de la relación de Poder de Taylor: S*= aX?. El índice de agregación “b” se da con
un intervalo de confianza del 95%). R*= coeficiente de variación; p= nivel de probabilidad del test de
Student.
Habitat 0 R p
Zone profonde 0,415 1,886 + 0,288 0,954 < 0,005
Herbiers 120179 1,355 + 0,407 0,826 < 0,005
octobre oú TRHg diminue progressive-
ment.
Le décalage que l'on observe entre
les deux courbes résulte de l'asynchro-
nisme dans la reproduction entre les
individus.
Ceci rend difficile l'estimation du
temps d'incubation des larves, mais on
peut considérer cependant qu'il est infé-
rieur ou égal au pas de temps choisi -15
jours— puisqu'on observe de grosses varia-
tions entre certaines dates successives.
Le produit de ces deux courbes (Fig.
4A) donne l'évolution du taux moyen
de remplissage hémibranchial de la
population entiére d'adultes (gravides
et non-gravides: THRt= TI x TRHg).
Recrutement et distribution des
juvéniles
Nous donnons l'évolution de la
densité benthique des plus petits juvé-
niles considérés: dont la taille est com-
prise entre 1,5 et 2,5 mm, dans la zone
profonde du canal et au niveau des her-
biers a Vallisneria (Fig. 4B).
La densité des adultes (L>10 mm)
est tres différente selon l'habitat: elle
s'éleve, en moyenne sur l'ensemble des
prélevements, a 78 + 5 ad./m? en zone
profonde et a 359 + 32 ad./m* au niveau
des herbiers. Ainsi, nous exprimons
(Fig. 4B) la densité des juvéniles en
nombre pour 100 adultes (juv./100 ad.)
de maniére a comparer les évolutions
du recrutement dans les deux habitats
(les densités exprimées en nombre par
m? sont données Tableau D).
Dans la zone profonde, on observe
trois pics de recrutement d'importance
décroissante. Le premier pic (octobre)
correspond au recrutement des juvéniles
issus de la premiere période d'incuba-
tion (juin). Ce recrutement débute des le
mois d'aoút et s'étale jusqu'au mois de
novembre. Les pics suivants (janvier et
avril) correspondent au recrutement
issu de la seconde période d'incubation
(mi-juillet — fin septembre) et s'étale de
décembre á juin (Fig. 4B).
Au niveau des herbiers, le recrute-
ment des juvéniles issus de la premiere
période d'incubation s'étend de fin sep-
tembre a début octobre, et est tres peu
marqué (densité maximale= 107
juv./100 ad.) par rapport á celui observé
en zone profonde (densité maximale=
529 juv./100 ad., avec une amplitude
plus forte). Le recrutement correspon-
dant a la seconde période d'incubation
apparait début janvier et s'étale jus-
qu'au mois de juin. Cette phase de
recrutement possede a peu pres la
méme amplitude que celle observée en
zone profonde, mais elle est cette fois-ci
d'intensité supérieure (les densités
maximales s'élevent á 565 juv./100 ad.
au niveau des herbiers et 340 juv./100
ad. en zone profonde) (Fig. 4B).
Nous donnons les erreurs standards
obtenues par rapport aux densités
moyennes des juvéniles considérés (SE
en %) a chaque prélevement (Tableau 1).
Au niveau des herbiers, ces valeurs sont
en moyenne plus fortes et augmentent
(globalement) lorsque la densité
diminue, ce qui n'est pas le cas en zone
profonde.
De maniere a savoir si ces variations
traduisent une variation de la réparti-
Iberus, 28 (1), 2010
tion au sein d'un méme habitat (au
cours du cycle) et comparer les résultats
entre herbiers et zone profonde, nous
avons appliqué la loi de puissance de
TAYLOR (1961): 5:23 aX ou is esta
variance et X la moyemne.
Cette loi générale s'applique á une
grande gamme de taille de surface
d'échantillonnage (PALOHEIMO ET
VUKOv, 1976; TAYLOR, WoIwOD ET
PERRY, 1978). L'exposant b traduit le
degré de contagion et peut donc étre
assimilé a un indice d'agrégation :
lorsque b= 1, la distribution est au
hasard.
lorsque b< 1, il y a tendance vers une
distribution uniforme (quand b
diminue).
lorsque b> 1, il y a tendance vers une
distribution contagieuse (quand b aug-
mente).
Le terme constant a est plus difficile
a interpréter et dépend des conditions
d'échantillonnage (DOWNING, 1979).
Cependant, toutes choses égales par
ailleurs, le terme a est d'autant plus fort
que SE est important (c'est-á-dire que S?
est grand devant X).
Cette analyse (Tableau II) nous
permet de conclure que, pour les deux
habitats, la répartition des juvéniles est
constante au cours de l'année puisque
les régressions puissances sont statisti-
quement significatives (p< 0,005). Aussi,
ces répartitions sont contagieuses (b> 1
dans les deux cas) et le degré de conta-
gion est plus fort en zone profonde (b=
1,886) qu'au niveau des herbiers (b=
1,355). Cependant, il semble que
l'échantillonnage des juvéniles considé-
rés soit de moins bonne qualité dans les
herbiers que dans la zone profonde, au
regard de la constante a (Tableau Il), ce
qui réduit la puissance de l'affirmation
précédente.
DISCUSSION
D'apres la littérature, nous savons que
C. fluminea est une espece hermaphrodite
simultanée. Les spermatozoides sont émis
dans le milieu aquatique, mais la fécon-
dation a lieu, au niveau des hémibranchies
internes. Les zygotes s'y développent, puis
sont libérés au premier stade juvénile avec
une taille d'environ 220 um (BRITTON ET
MORTON, 1979; KRAEMER ET GALLOWAY,
1986; RAJAGOPAL, VAN DER VELDE ET BJJ
DE VAATE, 2000).
Deux périodes de reproduction, c'est-
a-dire d'émission des spermatozoides, ont
été observées chez cette espece: l'une au
printemps — début été, lorsque la tempé-
rature augmente sensiblement; l'autre a
la fin de l'été — automne lorsque la tem-
pérature, alors forte et stable, commence
a diminuer. Plus précisément, c'est la sper-
matogénese qui est amorcée par ces varia-
tions de température, alors que l'ovogé-
nese est continue tout au long de l'année
(avec un ralentissement en hiver) chez les
individus adultes (KRAEMER ET AL., 1986).
Notre étude sur le suivi du taux d'in-
cubation et du taux moyen de remplissage
hémibranchial permet de distinguer en
effet deux périodes: l'une, intense, durant
le mois de juin et l'autre s'étalant de mi-
juillet a début octobre, présentant plu-
sieurs pics, ou le nombre de larves incu-
bées décroit progressivement (Fig. 2). Par
contre, la relation avec la température n'est
pas claire puisque la seconde période d'in-
cubation est amorcée en juillet, alors que
les températures maximales sont atteintes
au mois d'aoút.
Cependant ces deux périodes sont tres
proches dans le temps, si bien que leur
distinction est délicate, compte tenu, de
plus, de l'asynchronisme entre les indivi-
dus. Aussi, le nombre et la distinction des
périodes d'incubation dépendent du pas
de temps choisi pour les prélevements (15
jours dans notre étude) par rapport au
temps d'incubation.
En laboratoire, KING, LANGDON ET
COUNTS (1986) et KORNIUSHIN ET GLAU-
BRECHT (2003) ont observé que les larves
sont libérées apres 4 a 5 jours d'incuba-
tion. Par contre, ENG (1979) estime, au
cours d'une étude en milieu naturel, que
la durée d'incubation s'éleve a 1 mois,
mais doit dépendre des conditions envi-
ronnementales. D'apres nos données, il
est clair que cette durée est inférieure a 1
mois, et probablement inférieure a 15
jours. Ainsi, la premiere période d'incu-
bation dériverait d'une phase d'émis-
DuBoIs Er MARTÍNEZ-ORTÍ: Reproduction du Corbicula fluminea
sion de spermatozoides, alors que la
seconde résulterait de plusieurs phases
d'émission, avec un asynchronisme
marqué (Figs. 3 et 4A), ce qui est
conforme aux observations de KRAEMER
ET GALLOWAY (1986).
En ce qui concerne le recrutement des
juvéniles considérés (1,5-2,5 mm), la com-
paraison des courbes de densité (Fig. 4B)
indique que les maxima — en octobre en
zone profonde et en mars dans les herbiers
- sont de méme ordre de grandeur: res-
pectivement 529 et 565 juv. / 100 ad., c'est-
a-dire que l'on retrouve au mieux5a6
juvéniles de cette classe de taille par adulte,
alors que des milliers de larves sont incu-
bées puis libérées. Ce nombre de juvéniles
libérés par adultes a été estimé dans un lac
américain (Lake Arlington, Texas) a 387 par
jour durant la premiere période de repro-
duction et a 320 par jour durant la seconde
(ALDRIDGE ET MC MAHON, 1978).
Aussi, ces courbes montrent cette
opposition dans l'importance relative
des deux phases de recrutement: la pre-
miere phase est quasi-inexistante au
niveau des herbiers et tres intense en
zone profonde; la seconde phase, de
forte amplitude, est moins intense dans
la zone profonde que dans les herbiers.
L'apparition tardive (mi-décembre
environ) et l'étendue de cette seconde
phase de recrutement s'explique par la
faible croissance individuelle annuelle
(DUBOIS ET TOURENO, 1995).
Il est probable que l'opposition de
phase observée soit le résultat de migra-
tion Ou dispersion des juvéniles, dont
certains mécanismes sont connus. Nous
savons en effet que les petits individus
peuvent développer un filament de type
« byssus » leur permettant de s'attacher,
notamment a des particules qui peuvent
étre mises en suspension dans l'eau
(KRAEMER, 1979). Aussi, ces organismes
ont la capacité de sécréter un filament
muqueux, conduit par le siphon exha-
lant, qui leur permet de flotter en pleine
eau (en abaissant la densité corporelle).
Cette sécrétion est stimulée, en aqua-
rium, par le courant a partir de vitesses
de 10 a 20 cm/s (PREZANT ET CHALER-
WATT, 1984).
La vitesse du courant dans le Canal
Latéral est certes faible (7 cm/s en
moyenne), mais en saison estivale, un
grand nombre de bateaux de plaisance
naviguent, créant un remous important
qui peut étre a l'origine d'une disper-
sion (Neck, 1986). Enfin, il a également
été mis en évidence une forte capacité
de la part de C. fluminea a se mouvoir
sur le substrat dans un courent artificiel:
250 cm/h pour des individus de taille
inférieure á 2 mm (KRAEMER, 1979).
Les résultats concernant la réparti-
tion intra-habitat indiquent que celle-ci
est constante tout au long de l'année
aussi bien dans les herbiers qu'en zone
profonde, en dépit des variations de
densité dues au recrutement. Les indices
de contagion calculés (Tableau II) sont
du méme ordre de grandeur que ceux
obtenus par DOWNING (1979) a partir de
couples de données (S?, X) tirées de la
littérature: b= 1,496 (a= 7,87) pour
divers bivalves (138 données); b= 1,462
(a= 5,24) pour les invertébrés benthiques
en général (1462 données).
Cependant, il semble que le degré
d'agrégation soit plus important en
zone profonde (b= 1,886) qu'au niveau
des herbiers (b= 1,355). Nous avons en
effet observé (non quantifié) que le sédi-
ment récolté n'était pas toujours homo-
gene (pour la granulométrie ou la
teneur en débris organiques) le long
d'un transept dans la zone profonde, ce
qui peut augmenter le degré de conta-
gion. A l'inverse, les zones a herbiers
sont tres homogenes quant a la nature
du sédiment et la densité de Vallisneria.
REMERCIEMENTS
Au Dr. Rafael Araujo du Museo
Nacional de Ciencias Naturales de
Madrid pour la révision critique du
manuscrit et au Dr. Jean Noél Tourenq
du Laboratoire d'Hydrobiologie a la
Université Paul Sabatier de Toulouse,
ainsi que pour son aide sur le terrain.
Aux techniciens de la Section de Micro-
scopie Electronique du S.C.S.I.E. de
l'Universitat de Valencia, pour leur aide
a lutilisation du M.E.S Hitachi S- 4100.
Iberus, 28 (1), 2010
RÉFÉRENCES BIBLIOGRAPHIQUES
ALDRIDGE D.W. Er Mc MAHON R.F. 1978.
Growth, fecundity and bioenergetics in a
natural population of the Asiatic freshwater
clam Corbicula manilensis Philippi, from North
Central Texas. Journal of Molluscan Studies, 44:
49-70.
ALDRIDGE D.C. ET MULLER $. 2001. The Asiatic
clam, Corbicula fluminea, in Britain: current sta-
tus and potential impacts. Journal of Con-
chology, 37(2): 177-183
ARAUJO R., MORENO D. ET RAMOS M.A. 1993.
The Asiatic clam Corbicula fluminea (Múller,
1774) (Bivalvia: Corbiculidae) in Europe.
American Malacological Bulletin, 10: 39-49.
BAKER R., CLARKE K. Er HOWLETT D. 1999. The
Asiatic clam Corbicula fluminea (Múller) new
to the U.K. Transactions of the Norwich Natu-
ralists” Society, 31: 70-76.
BERAN L. 2006. Spreading expansion of Corbi-
cula fluminea (Mollusca: Bivalvia) in the Czech
Republic. Heldia, 6(3-4):187-192.
Bi] DE VAATE A. 1991. Colonization of the Ger-
man part of the river Rhine by the Asiatic
clam, Corbicula fluminea Múller, 1774 (Pele-
cypoda, Corbiculidae). Bulletin Zoólogisch
Museum Universiteit van Amsterdam, 13: 13-16.
Bi] DE VAATE A. ET GREJDANUS-KLASS M. 1990.
The Asiatic clam, Corbicula fluminea (Múller,
1774) (Pelecypoda, Corbiculidae), a new im-
migrant in the Netherlands. Bulletin Zoólogisch
Museum Universiteit van Amsterdam, 12: 173-
WT
BRITTON J.C. Er MORTON B. 1979. Corbicula in
North America: the evidence reviewed and
evaluated. In: J.C. Britton (ed.), Proceedings
First International Corbicula Symposium, Texas
Christian University, Fort Worth, Texas: 249-287.
DEN HARTOOG C., VAN DEN BRINK F.W.B. ET
VAN DER VELDE G. 1992. Why was the inva-
sion of the River Rhine by Corophium
curvispinum and Corbicula species so suc-
cessful?. Journal of Natural History, 26: 1121-
1129.
DOMAGALA J., LABECKA A.M., PILECKA-RAPACZ
M. ET MIGDALSKA B. 2004. Corbicula fluminea
(O.F. Múller, 1774) (Bivalvia, Corbiculidae)
a species new to the polish malacofauna. Fo-
lia Malacologica, 12(3):145-148.
DOWNING J.A. 1979. Aggregation, transforma-
tion and the design of benthos sampling pro-
grams. Journal of the Fisheries Research Board
of Canada, 36. 1454-1463.
Dubols C. 1995a. Biologie et démo-écologie d'une
espece invasive, Corbicula fluminea (Mollusca: Bi-
valvia) originaire d'Asie: Etude in situ (Canal La-
téral a la Garonne, France) et en canal expéri-
mental. These de Doctorat. Université de Tou-
louse. 1-169 pp. Toulouse.
10
DuborIs C. 1995b. Corbicula fluminea: un mol-
lusque opportuniste. Revue Agence de l'Eau
Adour-Garonne, 63: 13-16.
Dunors C. Er TOURENQ J.N. 1995. Étude préli-
minaire dynamique des populations de Cor-
bicula fluminea (Bivalvia: Corbiculidae) dans
la zone profonde d'un canal de la région tou-
lousaine (France). Hydroécologie appliquée, 7(1-
2): 19-28..
Dubois C. ET ORIGNY R. 1998. Corbicula flumi-
nea (O.F. Múller, 1774). Un mollusque bi-
valve venant d'Asie, trouvé dans le Cher.
Bulletin de la Société des Sciences Naturelles de
Touraine, 1997: 49-59,
ENG L.L. 1979. Population dynamics of the Asi-
atic clam, Corbicula fluminea (Muller), in the
Concrete-lined Delta Mendota Canal of Cen-
tral California. In: J.C. Britton (ed.), Proceed-
ings First International Corbicula Symposium,
Texas Christian University, Forth Worth, Texas:
39-68.
GIRARDI H. 1989. Deux bivalves d'eau douce ré-
cents pour la faune francaise (Mollusca, Bi-
valvia). Bulletin de la Société d'Étude des Sciences
Naturelles du Vaucluse, 2: 87-93.
GRUET Y. 1992. Un nouveau mollusque bivalves
pour notre région: Corbicula sp. (Heterodonta:
Sphaeriacea). Bulletin de la Société des Sciences
Naturelles de l'Ouest de la France, 14: 37-43.
Isom B.G. 1986. Historical review of Asiatic
clam (Corbicula) invasion and biofouling of
waters and industries in the Americas. In: J.C.
Britton (ed.), Proceedings 2"* Int. Corbicula Sym-
posium, American Malacological Bulletin, spe-
cial edition 2: 1-5.
KING C.A., LANGDON C.J. Er COUNTS C.L. 1986.
Spawning an early development Corbicula
fluminea (Bivalvia: Corbiculidae) in laboratory
culture. American Malacological Bulletin, 4: 81-
88.
KRAEMER L.R. 1979. Juvenile Corbicula: their
distribution in the Arkansas River benthos.
In: J.C. Britton (ed.), Proceedings First Inter-
national Corbicula Symposium, Texas Christian
University, Fort Worth, Texas: 89-97.
KRAEMER L.R. ET GALLOWAY M.L. 1986. Larval
development of Corbicula fluminea (Múller)
(Bivalvia: Corbiculacea): an appraisal of its
heterochrony. American Malacological Bul-
letin, 4: 61-71.
KRAEMER L.R., SWANSON C., GALLOWAY M. ET
KRAEMER R. 1986. Biological basis of behav-
iour in Corbicula fluminea U. Funtional mor-
phology of reproduction and development
and review of evidence for self-fertilitation.
In: J.C. Britton (ed.), Proceedings of 2”* Inter-
national Corbicula Symposium, American Mala-
cological Bulletin, special edition 2: 193-201.
DuBoIs Er MARTÍNEZ-ORTÍ: Reproduction du Corbicula fluminea
LABECKA A.M., DOMAGALA J. ET PILECKA-RA-
PACZ M. 2005. First record of Corbicula flu-
minea (O.F. Miller, 1774) (Bivalvia: Corbi-
culidae) in Poland. Folia Malacologica, 13(1):
25-27.
KORNIUSHIN A.V. ET GLAUBRECHT M. 2003.
Novel reproductive modes in freshwater
clams: brooding and larval morphology in
Southeast Asian taxa of Corbicula (Mollusca,
Bivalvia, Corbiculidae). Acta Zoologica, 84:
2935310:
MOUTHON J. 1981. Sur la présence en France et
au Portugal de Corbicula (Bivalvia: Corbicu-
lidae) originaire d'Asie. Basteria, 45: 109-116.
MOUTHON J. 2001a. Life cycle and population
dynamics of the Asian clam Corbicula flu-
minea (Bivalvia: Corbiculidae) in the Saone
River at Lyon (France). Hydrobiología, 452(1-
3): 109-119.
MOUTHON J. 2001b. Life cycle and population
dynamics of the Asian clam Corbicula flu-
minea (Bivalvia: Corbiculidae) in Rhóne River
at Creys-Malville (France). Archiv fiir Hydro-
biologie, 151(4): 571-589.
MOUTHON J. 2003. Longitudinal and temporal
variations of density and size structure of
Corbicula fluminea (Bivalvia) populations in
the Saóne and Rhóne rivers (France). Annales
de Limnologie, 39(1): 15-25.
NECK R.W. 1986. Corbicula in public recreation
waters of Texas: habitat spectrum and clam-
human interactions. In: J.C. Britton (ed.), Pro-
ceedings 2”* International Corbicula Symposium,
American Malacological Bulletin, 2: 179-184.
PALOHEIMO J.E. ET VUKOV A.M. 1976. On mea-
sures of aggregation and indices of contagion.
Mathematical Biosciences, 30: 69-97.
PÉREZ-QUINTERO J.C. 1990. Primeros datos so-
bre la presencia de Corbicula fluminea Múller
(Bivalvia, Corbiculidae) en España. Biome-
tría. Scientia Gerundensis, 16(1): 175-182.
PÉREZ-QUINTERO J.C. 2008. Revision of the dis-
tribution of Corbicula fluminea (Múller 1744)
in the Iberian Peninsula. Aquatic Invasions,
3(3): 355-358.
PREZANT R.S. ET CHALERMWAT K. 1984. Flota-
tion of the bivalve Corbicula fluminea as a
means of dispersal. Science, 225: 1491-1493.
RAJAGOPAL S., VAN DER VELDE G. ET BI] DE VA-
ATE A. 2000. Reproductive biology of the
Asiatic clams Corbicula fluminalis and Cor-
bicula fluminea in the river Rhine. Archiv fir
Hydrobiologie, 149(3): 403-420.
SWINNEN F., LEYNEN M., SABLON R., DUVIVIER
L. Er VANMAELE R. 1998. The Asiatic clam
Corbicula (Bivalvia: Corbiculidae) in Belgium.
Bulletin de l'Institut Royal des Sciences Naturelles
de Belgique, Biologie 68: 47-53.
TAYLOR L.R. 1961. Aggregation, variance and
the bivalve Corbicula fluminea as a means of
dispersal. Science, 225: 1491-1493.
TAYLOR L.R., WoIiwobD I.P. ET PERRY J.N. 1978.
The density-dependence of special behav-
iour and the rarity of randomness. Journal of
Animal Ecology, 47: 383-406.
TOURENO J.N. ET PUJOL J.L. 1991. Recherches sur
la bio-écologie de Corbicula fluminea. Étude bib-
liographique et observations dans la Garonne.
Moyen de lutte pour en limiter les nuisances
dans les circuits d'irrigation du Sud-Ouest. DDA
du lot et Garonne. 1-312 pp. Toulouse.
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O Sociedad Española de Malacología Iberus, 28 (1): 13-22, 2010
La Arqueomalacología: una introducción al estudio de los
restos de moluscos recuperados en yacimientos arqueológi-
COS
Archaeomalacology: an introduction to the analysis of shellfish
remains from archaeological sites
Víctor BEJEGA GARCÍA, Eduardo GONZÁLEZ GÓMEZ DE AGUERO
y Carlos FERNÁNDEZ RODRÍGUEZ*
Recibido el 21-IX-2009. Aceptado el 23-11-2010
RESUMEN
La presencia de moluscos en yacimientos arqueológicos genera la necesidad de desarro-
llar una metodología de estudio. Para ello, la Arqueomalacología nace como disciplina
dentro de la Arqueozoología. A través del estudio de los diferentes elementos de los
moluscos, aplicando diversas metodologías analíticas, podemos conocer una serie de
aspectos importantes de la vida en las sociedades del pasado. La alimentación, las estra-
tegias de recolección, la economía, la temperatura del mar, el comercio, el uso de ador-
nos son algunos de los temas que pueden ser estudiados a través de ésta disciplina arque-
ológica.
ABSTRACT
The presence of shellfish remains in archaeological sites has prompted the development of
a methodology for their study. With this purpose, archaeomalacology emerges as a disci-
pline within archaeozoology. A number of important aspects of life in ancient societies
may be known by studying shellfish middens using analytical methods. The origin of food
supplies, gathering strategies, economy, temperature of the sea water, trade, use of orna-
ments and so on, are all subjects approached by a discipline such as archaeomalacology.
INTRODUCCIÓN
La Arqueomalacología es la rama de
la Arqueozoología encargada del
estudio de los restos de moluscos apare-
cidos en contextos arqueológicos. Sus
inicios se remontan al siglo XIX, como
respuesta a la atención prestada a las
importantes concentraciones de molus-
cos de origen antrópico y cronología
prehistórica presentes principalmente
en las costas noroccidentales europeas, a
las que se denominó con el término
danés de kjoekkenmoeddings (literalmente
“restos de cocina”). El estudio de estos
depósitos supuso el desarrollo de la
Arqueomalacología, cuyo objetivo es,
como hemos señalado, el de analizar e
interpretar los moluscos presentes en los
yacimientos arqueológicos.
En la Península Ibérica, los estudios
arqueomalacológicos tienen sus inicios a
finales del siglo XIX, como resultado de
los hallazgos de depósitos de conchas
* Universidad de León. Área de Prehistoria. Facultad de Filosofía y Letras. Campus de Vegazana s/n. 24007.
IS
Iberus, 28 (1), 2010
en dos zonas geográficas diferenciadas:
una localizada en torno al río Muge, en
Portugal, y la segunda vinculada al río
Sella, en Asturias. En ambos casos se
trataba de grandes acumulaciones de
moluscos marinos (denominadas conche-
ros), adscritas al Mesolítico, que en el
caso del Sella servirán para definir un
determinado periodo cultural desarro-
llado a inicios del Holoceno, el Astu-
riense. El estudio de estos depósitos se
ve motivado por dos aspectos: la infor-
mación potencial que pueden aportar
acerca del modo de vida de los grupos
humanos que los originaron y la exce-
lente capacidad de conservación que
aportan a otros tipos de evidencias
materiales.
No obstante aquellos primeros epi-
sodios, la Arqueomalacología no se con-
solidará como parte habitual en los estu-
dios arqueológicos hasta la década de
los 70 del siglo XX. A partir de ese
momento, se va a producir una evolu-
ción metodológica que permite ampliar
la información obtenida de los análisis
de los concheros, destacando en este
aspecto el trabajo que constituye la Tesis
Doctoral de MORENO NUÑO (1994).
Como hemos señalado, la Arqueo-
malacología se ocupa del estudio de los
restos de moluscos (incluyendo ocasio-
nalmente crustáceos y equinodermos)
que se documentan en los yacimientos
arqueológicos, ya sea como elementos
aislados o en acumulaciones (conche-
ros).
La aparición de moluscos aislados
en contextos arqueológicos suele ser un
hecho bastante habitual, tanto en yaci-
mientos prehistóricos como históricos.
Por otra parte, estos restos no son exclu-
sivos de yacimientos costeros, no resul-
tando extraordinario encontrarlos en
sitios alejados del litoral, de manera
especial -aunque no como norma taxa-
tiva- a partir de época romana. La docu-
mentación de estas evidencias, y espe-
cialmente en el caso de restos alterados
intencionalmente, no siempre debe rela-
cionarse con una finalidad alimenticia,
sino que han podido también utilizarse
como material constructivo o incluso
estar relacionados con la ornamentación
14
u otras actividades vinculadas con el
ámbito ritual o simbólico. La presencia
de colgantes, collares y otros elementos
de adorno realizados con moluscos es
conocida ya desde el Paleolítico Supe-
rior, con especial relevancia de algunas
especies como es el caso de Columbella
rustica (Linné, 1758) (TABORIN, 1993a;
1993b).
El principal problema que se plantea
con relación a estos materiales es su
recuperación durante el proceso de
excavación. En muchas ocasiones única-
mente se recogen, en el mejor de los
casos, los más llamativos o los mejor
conservados; a lo que debe añadirse que
la ausencia de un proceso de cribado
provoca que fácilmente pasen desaperci-
bidos este tipo de evidencias.
El término conchero, como traducción
del danés “kjoekkenmoedding”, es utili-
zado por primera vez en España, según
VEGA DEL SELLA (1923), por Aquilino
Padrón en el Boletín de la Sociedad Geo-
gráfica de 1877 refiriéndose a los depósi-
tos de conchas existentes en las Cana-
rias. No obstante, hay que tener pre-
sente que un conchero no está formado
exclusivamente por conchas de molus-
cos, sino que puede incluir otros
muchos tipos de materiales tanto orgá-
nicos como inorgánicos (ictiofauna,
macrofauna, cerámica, industria lítica,
metal,...), con un muy buen estado de
conservación, incluso aun cuando se
trate de suelos ácidos, debido a la capa-
cidad aislante del carbonato cálcico de
los moluscos. Objeto de debate ha sido
el porcentaje de conchas presente en un
depósito necesario para su considera-
ción o no como un conchero (una revi-
sión del tema en BEJEGA GARCÍA, 2009a;
2009b), aceptándose como valor medio
un 30-50% de la composición total
(MEIGHAN, 1980; BOWDLER, 2006).
Estos depósitos (Figura 1) suelen
corresponderse con basureros formados
como resultado de la deposición conti-
nuada de las partes duras de los molus-
cos que han sido utilizados como ali-
mento, aun cuando también pueden
albergar algún elemento de esta misma
naturaleza que haya tenido otra función.
Así, en ocasiones existen problemas a la
BEJEGA GARCÍA ET AL.: La Arqueomalacología
es d
ES
hora de asignar alguno de los restos a
una categoría tafonómica concreta, ya
que su presencia puede reflejar causas
bien diferenciadas (alimento, intrusión,
adorno,...).
Del mismo modo, también se han
propuesto diferentes criterios a la hora
de clasificar los tipos de concheros,
basados en aspectos tales como la crono-
logía (MEIGHAN, 1980), la densidad de
materiales (STEIN, 1992; CLAASSEN, 1998)
o la morfología (DUPONT, 2008), siendo
este último el que consideramos más
adecuado para definir las estructuras
que habitualmente venimos estudiando
(Tabla 1, Figura 2).
METODOLOGÍA DE ANÁLISIS
A la hora de realizar un estudio
arqueomalacológico el primer aspecto
básico a tener en cuenta es la aplicación
de una metodología adecuada a las par-
Figura 1. Conchero de un castro Galaico-romano ($
a e Lugo)
Figure 1. Shell Miden of Galaico-roman hillfort (San Cibrao, Lugo, Spain)
ticularidades del depósito, ya desde el
proceso de recuperación de muestras. Es
sin duda un requisito indispensable
para la obtención de la mayor cantidad
de información posible. Este proceso
analítico se puede dividir en tres fases
generales:
Excavación y muestreo: en esta fase se
obtiene el objeto de estudio. Durante la
excavación se debe prestar especial
atención a la aparición de moluscos ais-
lados, así como a su correcta documen-
tación estratigráfica. En caso de existir
un conchero, es recomendable la aplica-
ción de diferentes sistemas de muestreo
(BEJEGA GARCÍA, 2009a; 2009b), desta-
cando, por ser los más habituales, el de
columnas y el selectivo.
Análisis de las muestras: fase analítica
propiamente dicha, que engloba básica-
mente cuatro procesos: cribado (Figura
3), triado, cuantificación y biometría. El
cribado consiste en el lavado de las
muestras utilizando un tamiz (en
5
Iberus, 28 (1), 2010
Tabla I. Nomenclatura aplicada a los distintos tipos de conchero, según DUPONT (2008).
Table I. Nomenclature applied to different types of'shell deposits, following DUPONT (2008).
Depósitos en positivo:
Conchero: depósito en relieve con un volumen superior a dos
metros cúbicos.
Depósito de conchas: depósito en relieve con un volumen infe-
rior a dos metros cúbicos.
Nivel o estrato de conchas: depósito con débil relieve (inferior
a 10 cm desde el suelo) formado por conchas esparcidas.
nuestro caso, teniendo en cuenta el tipo
de evidencias que pueden recuperarse,
solemos utilizar cribas con diámetro de
malla no superior a 1 mm). El triado
consiste en un proceso de selección de
los restos conforme a la identificación
taxonómica. Finalmente, se realiza una
cuantificación y se toman una serie de
valores: peso y biometría (siempre que
se conserven las dimensiones máximas
originales de altura, anchura y longi-
tud). Asimismo, durante esta fase
también se procede a la asignación de
restos a las diferentes Categorías de
Fragmentación (MORENO NUÑO, 1994;
GUTIÉRREZ ZUGASTI, 2005), que serán la
base para el cálculo de abundancias.
Estimación de Abundancias: para
conocer la importancia de cada una de
las diferentes especies de moluscos en
un conchero, se aplican tres Estimadores
de Abundancias, con las adaptaciones
necesarias para el cálculo de este tipo de
evidencias arqueológicas (MORENO
NUÑO, 1994; GUTIÉRREZ ZUGASTI, 2008;
2005; BEJEGA GARCÍA, 2009a; 2009b):
Número Mínimo de Individuos (N MI),
Número de Restos (NR) y Peso. Los
datos obtenidos por estos estimadores
son básicos para realizar la posterior
interpretación de los componentes
malacológicos del conchero.
Al tratarse de restos arqueológicos
las partes blandas del animal no se han
conservado, lo que indudablemente difi-
culta una correcta identificación taxonó-
mica. Este hecho se hace más evidente
en aquellas especies que, aun dispo-
niendo de ejemplares vivos, presentan
1ó
Depósitos en negativo:
Nivel o Estrato de conchas en negativo: depósito con un
relieve inferior a 10 cm desde el suelo.
Nivel o Estrato de conchas en negativo de hábitat: depósito de
menores dimensiones ubicado en zona habitada
Depósito de conchas en hoyo de almacenamiento u otro
dificultades para una asignación especí-
fica, como las del género Patella. Estas
deben ser identificadas en base a la mor-
fología de la concha, no pudiendo consi-
derar los criterios diagnósticos reconoci-
dos en la rádula, la coloración u otros
elementos clarificadores para la diferen-
ciación interespecífica, tal y como
señalan diferentes autores (p.e. CABRAL
Y SILVA, 2003). Así mismo, los altos
índices de fragmentación que presentan
habitualmente estas piezas dificultan su
identificación, impidiendo frecuente-
mente, por ejemplo, la diferenciación
entre Solen marginatus (Pulteney, 1799) y
Ensis siliqua (Linné, 1758), o entre
Mytilus galloprovincialis (Lamarck, 1819)
y Muytillus edulis (Linné, 1758). Por este
motivo, en arqueomalacología suele uti-
lizarse la identificación por asociación,
consistente en realizar una asignación
específica de determinados restos con
caracteres diagnósticos que sólo permi-
ten su identificación a niveles taxonómi-
cos supraespecíficos, mediante su aso-
ciación con restos que sí son asignables
a una especie concreta (MORENO NUÑO,
1994).
INFORMACIÓN POTENCIAL DE
LOS ESTUDIOS ARQUEOMALACO-
LÓGICOS.
Con el fin de poder determinar el
uso que han tenido los moluscos en un
yacimiento, se realiza una evaluación
tafonómica de los restos. Los grupos
tafonómicos se establecen siguiendo dos
BEJEGA GARCÍA ET AL.: La Arqueomalacología
Depósito en relieve sobre el sustrato
SÍ
Depósito en relieve Depósito de escaso relieve,
<10 em. de altura formado
Mo por conchas dispersas
< 2
Conchero Depósito Nivel
de conchas de conchas
Figura 2. Tipos de conchero (DUPONT, 2006)
Figure 2. Types of shell middens (DUPONT, 2006)
criterios: el agente que deposita los
restos (antrópico o no antrópico) y, en su
caso, la función para la que fueron reco-
lectados (GUTIÉRREZ ZUGASTI, 2005;
2008). Su adscripción a cada uno de los
diferentes grupos definidos sigue unos
criterios generales que MORENO NUÑO
(1994) adaptó de los establecidos por
GAUTIER (1987):
Restos alimenticios: aquellos que apa-
rentemente han sido objeto de consumo
por los humanos.
Restos alterados: los que presentan
alteraciones antrópicas para la confec-
ción de utensilios, adornos... o aquellos
con modificaciones naturales, pero cuya
morfología ha propiciado su uso por los
humanos.
Restos de funcionalidad antrópica desco-
nocida: restos recolectados una vez el
animal está ya muerto y que no presen-
tan ningún tipo de modificación que nos
permita intuir su función.
Restos intrusivos: los no acumulados
intencionalmente por el ser humano. Se
pueden diferenciar dos grupos:
a) Intrusivos penecontemporáneos:
depositados al mismo tiempo de forma-
ción del depósito.
No
Depósito de fosa Depósito en fosa
En hábitat En fosa
Nivel de
Nivel de h Depósito de
conchas en fosa *Onchas conchas en
en fosa de fosa
habitación
b) Intrusivos posteriores: introduci-
dos con posterioridad a la formación del
depósito.
En la mayoría de las ocasiones los
restos de moluscos se adscriben a la
primera de las categorías taxonómicas
citadas, la de restos alimenticios. No obs-
tante, la información que podemos
obtener mediante un estudio arqueoma-
lacológico es muy diversa, abarcando
planteamientos mucho más amplios que
una mera enumeración de especies (GON-
ZÁLEZ GÓMEZ DE AGUERO, 2009a; 2009b):
Información alimenticia
Como hemos señalado con anteriori-
dad, los restos de moluscos recuperados
en un yacimiento arqueológico se identi-
fican mayoritariamente con desechos
alimenticios (al igual que suele suceder
con otros ecofactos, como macrofauna,
ictiofauna o semillas). La importancia
real de los moluscos en la dieta no es
fácil de evaluar: un mayor volumen de
conchas no implica un mayor aporte
cárnico, ya que la proporción de carne
de un molusco no se corresponde con el
tamaño de la concha, influyendo un
gran número de factores. Además hay
WZ
Iberus, 28 (1), 2010
: > : S : da iS
Figura 3. Proceso de cribado de una muestra
Figure 3. Screening process with a 0.8 mm mesh
a
que tener en cuenta que su consumo
está condicionado por toda una serie de
valores sociales (gustos, modas, tabúes,
etc.). Por otro lado, la proporción exis-
tente entre las especies de moluscos que
componen la muestra nos ofrece infor-
mación sobre el tipo de sustratos explo-
tados, y consecuentemente podemos
evaluar las posibles áreas de captación y
las técnicas de recolección utilizadas,
tanto en el caso de moluscos marinos
como en el de moluscos fluviales y
terrestres (CALLAPEZ, 2002; STEIN, 1992).
Los resultados del análisis biométrico
pueden reflejar diferentes tendencias.
Así, por ejemplo, una rápida reducción
en las tallas de los individuos normal-
mente apunta a una sobreexplotación del
medio, ya sea debida tanto a un periodo
de carestía como a una incipiente presión
sobre el entorno (SHACKLETON, 1980;
DAvIÉS, 2008), aunque también puede
estar indicando la incidencia de la reco-
lección en una zona concreta.
18
|
pe
con una malla AO Saa 7
Información comercial
La presencia de moluscos marinos
en yacimientos arqueológicos de interior
o la aparición de especies procedentes
de ecosistemas muy distintos a los del
entorno inmediato de un yacimiento
litoral determinado suponen un proceso
antrópico de traslado.
Así, es frecuente la aparición de
restos de moluscos en yacimientos
romanos del interior, tales como Asturica
Augusta (Astorga), Lucus Augusti (Lugo)
o el campamento de la Legio VII en
León, por citar algunos ejemplos en el
noroeste de la Península Ibérica. Este
tipo de evidencias nos indica la existen-
cia de redes de comercio capaces de
abastecer de moluscos a poblaciones
relativamente alejadas del mar, respon-
diendo a una demanda vinculada a los
grupos sociales con mayor poder adqui-
sitivo y que se especifica en una serie de
especies entre las que cabe destacar,
para época romana, Ostrea edulis (Linné,
BEJEGA GARCÍA ET AL.: La Arqueomalacología
Hierro
Figura 4. Concha de Ostrea edulis procedente del castro de Neixón (Boiro, A Coruña) de la 11 Edad de
Figure 4. Shell of Ostrea edulis from Neixón hillfort of 2" Iron Age (Boiro, A Coruña, Spain)
1758) (Figura 4), pero también otras
como Ruditapes decussatus (Linné, 1758),
Osilinus lineatus (da Costa, 1778), etc.
A la existencia de estas redes de
comercio deberíamos sumar el desarro-
llo de sistemas de conservación y trans-
porte de los moluscos que permitiesen
su consumo, evitando su deterioro. En
este sentido, se ha venido planteando
una doble hipótesis: la utilización de
métodos de conserva, tales como la
salazón, o el transporte de los animales
vivos, sea en contenedores con agua O
bien en recipientes sin agua aprove-
chando la capacidad de algunas espe-
cies para resistir varios días mediante la
almacenada en su interior tras cerrar las
valvas.
Información paleoclimática
La sensibilidad de los moluscos a los
factores abióticos y bióticos hace que las
diferentes especies puedan asociarse a
ecosistemas muy concretos, cuyas carac-
terísticas de temperatura y salinidad del
agua, en el caso de los moluscos
marinos, son conocidas. Partiendo del
principio de que las especies no han
variado sus preferencias de hábitat
(SPARKS, 1980), podemos suponer que
estos moluscos son representantes de un
paleoclima determinado, lo que permite
reconstruir las condiciones del medio en
el que fueron recolectados, información
a su vez de interés para valorar las con-
diciones de vida de las sociedades del
pasado.
19
Iberus, 28 (1), 2010
De este modo, la existencia en los
yacimientos gallegos del cambio de Era
(siglos 1 a.C.- I d.C.) de especies como
Stramonita haemastoma (Linné, 1758) que
actualmente no se encuentran en las
costas gallegas, nos indica un descenso
de la temperatura de unos 2,5-3” C entre
ese momento y la actualidad (RODRÍ-
GUEZ LÓPEZ Y FERNÁNDEZ RODRÍGUEZ,
1996).
Igualmente, los moluscos terrestres
son un claro indicador de las condicio-
nes climáticas de la época de formación
del yacimiento, así como de las caracte-
rísticas del ecosistema que lo rodeaba
(SPARKS, 1980). La presencia de especies
como Pomatias elegans (Muller, 1774),
por ejemplo, indica un entorno húmedo,
de temperaturas suaves y con suelos
calcáreos.
Uno de los principales métodos apli-
cados en la interpretación paleoclimá-
tica es la comparación entre la distribu-
ción actual de las especies y su presen-
cia en los depósitos arqueológicos
(GUTIÉRREZ ZUGASTI, 2005; 2008). Sin
embargo, este tipo de análisis no resulta
totalmente definitorio, debido a que
gran cantidad de especies son euriter-
mas y eurohalinas, siendo necesario
complementarlo con otros estudios.
Un sistema más preciso para la
reconstrucción paleoclimática se basa en
el análisis de los isótopos de oxígeno
(016, 017 y O18) presentes en las
conchas de los moluscos, cuya propor-
ción varía en función de las fases cálidas
y frías. Sin embargo, a pesar de tratarse
de un análisis que ofrece una fiabilidad
contrastada a la hora de definir grandes
episodios climáticos, las dificultades
inherentes al mismo, motivadas por la
fluctuación de la temperatura del agua y
su composición isotópica, limitan su
aplicación ante eventos de menor
entidad (SHACKLETON, 1980; STEIN, 1992;
CLAASSEN, 1998).
Estacionalidad
La diferencia en el grosor de las
líneas de crecimiento correspondientes a
cada ciclo estival e invernal, especial-
mente en los bivalvos, permite diferen-
ciar cada uno de estos ciclos. Así, las
20
líneas más gruesas son propias de perío-
dos estivales, con una mayor cantidad
de alimento y unas mejores condiciones
del agua, frente a las de menor espesor
propias de ciclos invernales.
En consecuencia, el análisis de las
líneas de crecimiento teóricamente
permite identificar la época de recolec-
ción de los moluscos, pudiendo estable-
cer si se trata de un recurso anual o esta-
cional, lo que a su vez tiene implicacio-
nes relativas a las estrategias de aprovi-
sionamiento de las comunidades
humanas y la importancia que estos
recursos tendrían en su sistema econó-
mico.
Otros tipos de información
Los moluscos recuperados en los
yacimientos arqueológicos también
pueden aportar información relacionada
con otro tipo de actividades humanas
no asociadas con la alimentación. Por
ejemplo, la utilización de los murícidos
para la elaboración de tintes (obtención
del color púrpura) se tradujo en la exis-
tencia de una actividad industrial, refle-
jada en el establecimiento de factorías
dedicadas a los procesos de recolección
y transformación de estos moluscos.
Otro tipo de evidencias indirectas
que reflejan el uso y la importancia que
tuvieron los moluscos para determina-
das sociedades del pasado son las
impresiones de determinadas especies,
especialmente Cerastoderma edule (Linné,
1758), como método de decoración de la
cerámica, dando lugar a la denominada
“cerámica cardial”.
Por otro lado la existencia de colgan-
tes, pulseras y otros objetos de adorno
fabricados a partir de conchas, o la pre-
sencia de las partes duras de los molus-
cos en determinados contextos como los
funerarios pueden ser evidencia del
valor simbólico y/o ritual que también
han recibido en ocasiones estos materia-
les.
En relación con los moluscos no
marinos presentes en los yacimientos
arqueológicos, aun cuando su trata-
miento analítico de cuantificación no
varía con respecto a aquellos, sí lo hace
su interpretación. En el caso de los
BEJEGA GARCÍA ET AL.: La Arqueomalacología
moluscos fluviales, debe prestarse espe-
cial atención a los ecosistemas caracte-
rísticos de cada especie presente, ya que
pueden indicarnos zonas de recolección
y ayudar a valorar la intencionalidad o
no de su recogida. Incluso la presencia
de moluscos terrestres y micromoluscos
puede ser indicativa de las condiciones
de formación de un depósito de molus-
cos fluviales o marinos, evidenciando la
cantidad de tiempo que el mismo per-
maneció expuesto hasta ser enterrado.
CONCLUSIONES
Los restos de moluscos presentes en
los yacimientos son una fuente de infor-
mación básica, tanto biológica como
socio-cultural. El estudio sistemático de
los depósitos con conchas permite
obtener información sobre las estrate-
gias de abastecimiento y la dieta de las
poblaciones humanas, pero además son
un elemento indispensable para estu-
diar otros aspectos, tanto socio-econó-
micos como paleoambientales.
Uno de los errores que deben evi-
tarse es el de interpretar la diversidad
biológica de un periodo concreto a
partir de las evidencias de origen arque-
ológico. Los moluscos reflejan la presen-
cia de determinadas especies en el
medio en un momento concreto, pero no
pueden considerarse como poblaciones
BIBLIOGRAFÍA
BEJEGA GARCÍA V. 2009a. Composición y me-
todología de análisis de concheros aplicada
a los castros litorales gallegos. Actas de las 1
Jornadas de Jóvenes en Investigación Arqueoló-
gica (J[A): Dialogando con la cultura material
(Madrid, 2008), Tomo 1: 247-254.
BEJEGA GARCÍA V. 2009b. El aprovechamiento de
los recursos marinos en el Castro Grande de O
Neixón (Boiro, A Coruña): un análisis arqueo-
malacológico. Tesina de Licenciatura. Uni-
versidad de León. Inédita.
BOWDLER S. 2006 Mollusks and other shells.
En Balme J. y Paterson A. (Eds.): Archaeol-
ogy in Practice. A Student Guide to Archaeo-
logical Analyses. Blackwell Publishing: 317-
39
biológicas, ya que los concheros son
acumulaciones antrópicas en las que
van a resultar muy importantes los fac-
tores socio-culturales. De este modo la
mayor presencia de Patella sp. en
muchos castros galaicos puede que no
esté reflejando la mayor abundancia de
esta especie, sino una preferencia ali-
menticia, bien por motivos sociales
(simbolismo, gusto, tabú...) o económi-
cos (fácil recolección, mayor rendi-
miento, etc.).
Sin duda alguna, para la correcta
validación de estos estudios es necesaria
una metodología de excavación, mues-
treo e identificación muy precisa, ya que
lo contrario supondría inevitablemente
una pérdida de información.
Pese a que la Arqueomalacología
tiene un largo desarrollo en el tiempo
como disciplina arqueológica, ha sido
poco utilizada e incluso se ha infrautili-
zado en muchas ocasiones. Actualmente
está adquiriendo importancia debido
tanto al avance metodológico de la dis-
ciplina, así como por el conocimiento de
la información potencialmente obtenible
mediante su aplicación. El aprovecha-
miento de los recursos marinos por las
comunidades del pasado y su evolución
a lo largo del tiempo es un aspecto a
tener presente si queremos conocer y
definir de forma correcta y global los
modos de vida de aquellos grupos
humanos.
CABRAL J.P., COELHO F. Y DA SILVA A. 2003.
Morphometric analysis of limpets from an
Iron-Age shell midden found in northwest
Portugal. Journal of Archaeological Science, 30:
817-829.
CALLAPEZ P. 2002. A malacofauna críptica da
Gruta do Caldeirao (Tomar, Portugal) e as
faunas de gastrópodes terrestres do Plisto-
cénico superior e Holocénico da Extrema-
dura portuguesa. Revista Portuguesa de Ar-
queología, Vol 5 n*2 : 5-28
CLAASSEN C. 1998. Shells. Cambridge Manuals
in Archaeology, Cambridge University Press.
266 pp.
Davies P. 2008. Snails. Archaeology and Land-
scape change. Oxbow Books, Oxford. 199 pp.
21
Iberus, 28 (1), 2010
DUPONT C. 2006 La malacofaune de sites mé-
solithiques et néolithiques de la facade at-
lantique de la France: Contribution a l'eco-
nomie et a l'identité culturelle des groupes
concernés. British Archaeological Reports, In-
ternational Series, 1571, v+439 pp.
GAUTIER A. 1987. Taphonomic Groups: How
and Why? Archaeozoologia, 1 (2): 47-52.
GONZÁLEZ GÓMEZ DE AGUERO E. 2009a. Re-
sultados obtenidos en el análisis de un con-
chero: el caso de los castros litorales gallegos.
Actas de las I Jornadas de Jóvenes en Investiga-
ción Arqueológica (JLA): Dialogando con la cul-
tura material (Madrid, 2008). Madrid: 255-
262.
GONZÁLEZ GÓMEZ DE AGUERO E. 2009b. El
marisqueo en los castros galaico-romanos de la
costa cantábrica gallega: el conchero de Punta
Atalaya (San Cibrao, Cervo, Lugo). Tesina de
Licenciatura. Universidad de León. Iné-
dita.
GUTIÉRREZ ZUGASTI I. 2005. La explotación de
moluscos en la cuenca baja del río Asón (Canta-
bria, España) a inicios del Holoceno (10.000-
5.000 B.P.) y su importancia en las comunida-
des humanas del Aziliense y del Mesolítico. Tra-
bajo de Investigación de Doctorado.
Universidad de Cantabria. Inédito.
GUTIÉRREZ ZUGASTI I. 2008. La explotación de
moluscos y otros recursos litorales en la región
cantábrica durante el Pleistoceno Final y el Ho-
loceno Inicial. Tesis Doctoral. Edición CD.
Universidad de Cantabria.
MEIGHAN C.W. 1980. Los moluscos como res-
tos de alimentos en los sitios arqueológicos.
En Brothwell D. y Higgs E. (Coord.): Ciencia
en Arqueología. Fondo de Cultura Económica,
México: 427-434.
22
MORENO NUÑO R. 1994. Análisis arqueomalaco-
lógicos en la Península Ibérica. Contribución me-
todológica y biocultural. Tesis Doctoral. Uni-
versidad Autónoma de Madrid. Inédita.
RODRÍGUEZ LÓPEZ C. Y FERNÁNDEZ RODRÍGUEZ
C. 1996. Una aproximación al estudio de los
yacimientos castreños del litoral galaico: di-
mensiones ambientales y económicas. En Ra-
mil Rego P., Fernández Rodríguez C. y Ro-
dríguez Guitián (Coord.): Biogeografía Pleis-
tocena-Holocena de la Península Ibérica. Xunta
de Galicia: 363-375.
SHACKLETON NJ. 1980. Los moluscos marinos
en Arqueología. En Brothwell D. y Higgs E.
(Coord.): Ciencia en Arqueología. Fondo de
Cultura Económica, México: 418-426.
SPARKS B.W. 1980. Los moluscos no marinos en
la Arqueología. En Brothwell D. y Higgs E.
(Coord.): Ciencia en Arqueología. Fondo de
Cultura Económica, México: 406-417.
STEIN K.J. (Ed.). 1992. Deciphering a Shell Mid-
den. Academic Press, xix + 375 pp.
TABORIN Y. 1993a. La parure en coquillage au
Paléolithique. Gallia Préhistoire, supplément
29, Centre National de la Recherche Scienti-
fique. 544 pp.
TABORIN Y. 1993b. Traces de faconnage et
d'usage sur les coquillages perforés. Traces
et fonction: les gestes retrouvés. Vol. 50. Collo-
que International de Liége. Editions Études
et Recherches Archéologiques de Université
de Liege, 50(2): 255-267.
VEGA DEL SELLA R.E. Conde de la 1923. El As-
turiense. Nueva industria preneolítica. Memorias
de la Comisión de Investigaciones Paleontológi-
cas y Prehistóricas, 32 (serie Prehistórica 27),
Museo Nacional de Ciencias Naturales, Ma-
drid.
O Sociedad Española de Malacología Iberus, 28 (1): 23-60, 2010
Chauvetia
Neogastropoda, Buccinidae) del área ibero-marroquí, con
Las especies del género (Gastropoda,
descripción de cuatro especies nuevas
The species of the genus Chauvetía (Gastropoda, Neogastropoda,
Buccinidae) in the Ibero-moroccan area, with the description of four
new species
Serge GOFAS* y Joan Daniel OLIVER**
Recibido el 25-111-2010. Aceptado el 22-IV-2010
RESUMEN
Se revisan las especies del género Chauvetia Monterosato, 1884 encontradas en Andalu-
cía, el sur de Portugal y Marruecos. En esta área se reconocen doce especies, cuatro de
las cuales se describen como nuevas, dos con localidad tipo en el estrecho de Gibraltar y
dos con localidad tipo en el noroeste marroquí. El estrecho de Gibraltar alberga la diver-
sidad más alta para el género en Europa, apareciendo hasta ocho especies en la misma
muestra.
ABSTRACT
The species belonging to the genus Chauvetia Monterosato, 1884 are revised for the area
including Andalucía, southern Portugal and Morocco. Twelve species are recognized in
this area, of which four are described as new, two with a type locality in the Strait of
Gibraltar and two with a type locality in northwestern Morocco. The Strait of Gibraltar
holds the highest diversity for the genus in Europe, with up to eight species potentially
occurring in the same sample.
INTRODUCCIÓN
El género Chauvetia Monterosato,
1884 comprende pequeños gasterópo-
dos incluidos en la familia Buccinidae,
cuya taxonomía resulta particularmente
dificultosa debido al elevado número de
especies y a la escasa diferenciación
entre éstas. El género se conoce exclusi-
vamente en el Mediterráneo y en la
parte adyacente del Atlántico, entre el
Canal de la Mancha y Senegal. La
mayor diversidad de especies se conoce
hasta la fecha entre Senegal (14 especies
en el área de Dakar, OLIVER Y ROLÁN,
2008) y las costas del Sáhara (9 especies,
OLIVER Y ROLÁN, 2009).
Existen varios trabajos dedicados a
la taxonomía de este género en el Medi-
terráneo, entre ellos los de TIBERI (1868),
NORDSIECK (1976), MICALI (1999) y HER-
GUETA, LUQUE Y TEMPLADO (2002). Sin
embargo, son aún muchos los proble-
mas taxonómicos sin aclarar. En el pre-
sente trabajo se revisan las especies del
entorno ibero-marroquí, con particular
atención a las especies del estrecho de
Gibraltar.
* Departamento de Biología Animal, Facultad de Ciencias, Universidad de Málaga, E-29071 Málaga.
** Alcorisa, 83-12C, E-28043 Madrid.
Ss
Iberus, 28 (1), 2010
MATERIAL Y MÉTODOS
El material estudiado para esta revi-
sión incluye el recolectado por los
autores en el área de estudio, así como
el existente en las colecciones del
Muséum National d'Histoire Naturelle
de París (UNHN) y el Museo Nacional
de Ciencias Naturales de Madrid
(MNCN). Una parte sustancial de los
datos usados para este trabajo se deriva
de tres campañas organizadas por el
MNHN. Los datos de las localidades se
recogen en la Tabla L.
La campaña Ceuta 1986 se desarrolló
en mayo de 1986, y durante la misma se
muestrearon una decena de puntos
entre el nivel de bajamar y 40 m, situa-
dos alrededor de la península de Ceuta,
desde La Almadraba (Mediterráneo)
hasta Benzú (Estrecho), principalmente
mediante el uso de una aspiradora sub-
marina de aire comprimido. Al llegar a
puerto, las muestras eran inmediata-
mente tamizadas en agua de mar y
observadas bajo una lupa binocular, lo
que posibilitó la observación en vivo de
muchas especies, entre ellas nueve de
Chauvetia. Para las especies de pequeño
tamaño se realizó un dibujo del animal
vivo, identificado por un número en la
etiqueta del ejemplar correspondiente.
El material recolectado está repartido
entre el MNHN y el SMNH.
La campaña Algarve 1988 se desa-
rrolló en mayo de 1988 en la bahía de
Sagres, próxima al extremo surocciden-
tal de la Península Ibérica, y en junio del
mismo año en la zona de la Ría Formosa
y en algunos puntos cerca de Tavira, en
la parte oriental de la costa del Algarve.
Los métodos de muestreo eran básica-
mente los mismos, y también se realiza-
ron dibujos de los animales vivos. En la
zona de Sagres, las especies de Chauvetia
estaban representadas por un número
de individuos mayor de lo habitual,
mientras el género no se encontró en el
muestreo de las lagunas de Ría
Formosa, a pesar de realizarse un
esfuerzo de muestreo similar. En esta
campaña se pudieron observar en vivo
cinco especies, todas ellas también pre-
sentes en el material de Ceuta.
24
El material procedente de los bancos
submarinos de Gorringe y Ampere, en
el que se halló una especie de Chauvetia,
fue recolectado durante la campaña Sea-
mount 1 llevada a cabo en el B/O “Le
Noroít” en 1987.
Se ha examinado material proce-
dente de diversas colecciones deposita-
das en el MNCN como las colecciones
de Hidalgo (1913), Azpeitia (1934) y
Cobos (2000). En algunos casos se indica
que estas colecciones incluyen otras
como las de Gavala, Boscá o Sierra.
También se ha estudiado material del
MNCN aportado por José Templado y
material procedente de las Campañas
Fauna Ibérica 111 (1994) y IV (1996).
Se estudió el material de la colección
del segundo autor (JDO), procedente de
material arrojado a las playas o de sedi-
mentos recogidos a poca profundidad
(entre 0 y 20 m). El material de Alborán
se ha obtenido a partir de sacos de sedi-
mentos depositados en su momento en
el MNCN, y procede de las redes de
barcos de pesca de coral rojo del puerto
de Almería, que faenaron entre 1984 y
1986 con el arte de la “barra italiana”
entre 80 y 200 metros de profundidad
(PEÑAS, ROLÁN, LUQUE, TEMPLADO,
MORENO, RUBIO, SALAS, SIERRA Y GOFAS,
2006).
El material examinado se discrimina
en el apartado correspondiente de cada
especie, distinguiendo entre ejemplares
recogidos vivos (ej.) y conchas vacías
(c.); para cada lote se dan las dimensio-
nes de los ejemplares adultos (con el
labio formado) más pequeño y mayor;
los juveniles se indican con j. Las proto-
conchas fueron medidas bajo la lupa
binocular equipada de un micrómetro
ocular, a un aumento de 40x, en vista
apical, según las pautas indicadas en la
Figura 1.
Los ejemplares destinados a ser foto-
grafiados en microscopía electrónica de
barrido fueron limpiados en un baño de
lauril sulfato de sodio (un detergente de
pH neutro) al 10%, sometidos a una
breve (pocos segundos) exposición a
ultrasonidos en agua, montados en los
portaobjetos con un pegamento conduc-
tor y metalizados con oro. Las observa-
GOFAS Y OLIVER: Las especies de Chauvetía en el área ibero-marroquí
Tabla I. Localidades de Ceuta, del Algarve y de los bancos lusitanos muestreadas en las campañas
del MNHN, y de la costa mediterránea ibérica muestreadas en las campañas del MNCN (Fauna
Ibérica).
Table 1. Localities from Ceuta, Algarve and the lusitanian banks sampled during MNHAN campaigns,
and those from the Iberian mediterranean coast sampled during MNCN campatgns (Fauna Ibérica).
Localidad
Campaña Ceuta 1986
Benzú
Playa Benítez
Punta Almina
Punta del Saudiño
Ensenada de Sarchal
Ensenada de La Almadraba
Campaña Algarve 1988
Sagres, Ponta da Baleeira
Sagres, Baía da Baleeira
Sagres, Boía da Baleeira
Sagres, Boía de Sagres
Sagres, Pontal dos Corvos
Sagres, Ponta dos Caminhos
Tavira, Pedra do Barril
Tavira, Cabanas
Campaña Seamount 1
Banco Gorringe, DWOA4
Banco Gorringe, DWO5
Banco Gorringe, DWO6
Banco Gorringe, DWO8
Banco Gorringe, DEO9
Banco Gorringe, DW32
Banco Gorringe, DW33
Banco Ampere, DW92
Banco Ampere, DE98
Fauna Ibérica
Punta Foradada (Mallorca)
Cabo Nati (Menorca)
Punta Galera (1. Espardell, Ibiza)
Bleda Mayor (Ibiza)
Cala Eubarco (Ibiza)
Placer Barra Alta N. (Columbretes)
Norte Isla Columbrete Grande
Isla de Alborán
Coordenadas
a SA
35" 54,6" N— 05* 20,0 W
35" 54,1” N—05* 16,5 W
35* 54,1 N— 05* 18,0 W
39 09,4 N=05* 17,0 W
d0 02 0 Ni 057 19,00
37* 00,3" N— 08* 55,5" W
37* 00,7” N— 08* 55,0" W
37* 00,8" N— 08* 55,0" W
36% 59,0 N—08* 56,3 W
3101/3007 50,3W
37" 02,0" N—08* 52,0" W
37 02,4 N—0739,7'W
06 NOS
36" 32 N—11% 34 W
30:32 N= 11530 W
36” 30'N—118 38" W
36" 28'N—-119 377'W
30 91 N=117 30 W
30 JN T1P 35
36" 31" N—11% 34W
OSI 12053 We
SOS IN ZAS
39494 0237: E
40* 43'N—03* 49' E
38 47'N-01*28'E
39 50,N=01"09'E
39 04"N:01221'E
39" 49" N—00* 32' E
39 54N—01*41'E
35 58 N—02* 58" W
Hábito Profundidad (m)
Infralitoral rocoso 0-4
Cascajo bioclástico 15-25
Acantilado rocoso 25-40)
Acantilado rocoso 17-35
Infralitoral rocoso 0-3
Fondo blando enfangado 20-36
Bajo de acantilado rocoso 17-23
Fondo rocoso 3-15
Intermareal rocoso
Cascajo bioclástico 20-30
Bajo de acantilado rocoso 17-22
Cascajo bioclástico 23-33
Fondo rocoso enfangado 25
Fondo rocoso enfangado 14
Piedras, bioclastos y rodolitos 93-96
Fondo con bioclastos 180
Fondo de bioclastos con ofiuras 250
Fondo endurecido con bioclastos gruesos 470-485
Fondo con arena bioclástica 350-360
Fondo con rocas y algas 54-62
Fondo con rocas y algas 35-70
Fondo con arena bioclástica gruesa y rodolitos 117-129
300-325
Cascajo bajo un extraplomo 24
Arena y cascajo entre Posidonia 31
Sedimento 35
Detrítico costero 45
Roca con coralígeno y detrítico 44
Arena gruesa y restos calcáreos 32
Coralígeno rocoso, detrítico 4]
Fondo rocoso 35-37
25
Iberus, 28 (1), 2010
ciones y micrografías se realizaron en un
microscopio electrónico de barrido JEOL
JSM-840, ampliado con un sistema de
adquisición digital de imágenes.
Las descripciones están basadas en
el material examinado de la zona de
estudio, por lo que pueden no tener en
cuenta elementos de variabilidad que se
manifiesten fuera de esta zona. Las
especies asignadas al género Chauvetia
presentan una gran homogeneidad mor-
fológica, por lo que se hace primero una
diagnosis de los caracteres genéricos
compartidos entre todas las especies,
PARTE TAXONÓMICA
que no serán repetidos en las descripcio-
nes de cada especie.
Abreviaturas
CINZ: Código Internacional de Nomen-
clatura Zoológica.
Col.: colección.
JDO: Joan Daniel Oliver.
SG: Serge Gofas.
SMN H: Swedish Museum of Natural
History, Estocolmo
USNM: National Museum of Natural
History (Smithsonian).
Chauvetia Monterosato, 1884
Chauvetia Monterosato, 1884. Nom. Gen. Spec.: 137. [Nomen novum para Nesaea Risso, 1826; especie
tipo: Nesaea mamillata Risso, 1826, ver notas nomenclaturales].
Nesaea Risso, 1826 (non Lamarck, 1812, nec Leach, 1814). Hist. Nat. Eur. Mérid., iv: 211. [Especie
tipo por designación subsiguiente de Bucquoy, Dautzenberg y Dollfus, 1883: Nesaea mamillata
Risso, 1826, ver notas nomenclaturales].
Lachesis Risso, 1826 (non Daudin, 1803, nec Wood, 1804). Hist. Nat. Eur. Mérid., iv: 223. [Especie
tipo por monotipia: Lachesis mamillata Risso, 1826].
Donovania Bucquoy, Dautzenberg y Dollfus, 1883 (non Donovania Leach, 1814). Moll. Roussillon,
vol. 1: 85, 112. [Nomen novum para Lachesis Risso, 1826 y Nesaea Risso, 1826].
Folineaea Monterosato, 1884. Nom. Gen. Spec.: 136. [Especie tipo por designación subsiguiente de
Crosse, 1885: Buccinum lefebvrii Maravigna, 1840].
Adansonia Pallary, 1902. J. Conchyl. 50: 13. [Nomen novum para Folineaea Monterosato, 1884, non
Folinia Crosse, 1868].
Syntagma lredale, 1918. Proc. Malac. Soc. London, 13: 34-35. [Nomen novum para Donovania
Bucquoy, Dautzenberg y Dollfus 1883].
Chauvetiella Nordsieck, 1968. Eur. Gehiuseschn.: 137. [Especie tipo por designación original: Chau-
vetiella vulpecula (Monterosato, 1884)|.
Donovaniella Nordsieck, 1968. Eur. Geháuseschn.: 136. [Especie tipo por designación original:
Donovaniella minima (Montagu, 1803)|.
Diagnosis: La concha es fusiforme,
sólida, con espira alta y un tamaño
generalmente comprendido entre 5 y 10
mm en los adultos (aunque la mayor
especie conocida, Chauvetia gigantissima
Oliver y Rolán, 2009, de la plataforma
continental del Sáhara, alcanza hasta 20
mm). La protoconcha consta por lo
general de poco más de una vuelta,
cuyo núcleo hemisférico alcanza alrede-
dor de la mitad del diámetro de la
vuelta siguiente. La escultura de la pro-
toconcha puede incluir cordoncillos
espirales aplanados, costillas axiales o
una combinación de ambos. La transi-
26
ción con la teleoconcha es difícil de
apreciar; se considera el punto en el que
las costillas axiales, después de aproxi-
marse entre sí al final de la primera
vuelta, se vuelven a distanciar. Un poco
antes de ese paso, todavía pueden apre-
ciarse claramente los cordoncillos espi-
rales de la protoconcha y se inician los
primeros cordones de la teleoconcha.
La teleoconcha tiene una escultura
de cordones espirales y costillas axiales,
pudiendo variar el aspecto y el número
de estos elementos. Generalmente, hay
entre 3 y 5 cordones espirales en las
vueltas de la espira y 15-20 en la última
GOFAS Y OLIVER: Las especies de Chauvetía en el área ibero-marroquí
Figura 1. Medidas tomadas en las protoconchas. 1: diámetro máximo, medido entre el medio de la
zona de transición y el borde opuesto de la protoconcha; 2: diámetro del núcleo, 3: diámetro de la
primera media vuelta, ambos medidos en un eje perpendicular al máximo diámetro de la proto-
concha. Figura 2. Vista parcial de la rádula de Chauvetia mamillata (Risso, 1826), especie tipo del
género. Ejemplar de Sagres 17-23 m.
Figure 1. Measurements taken on the protoconchs. 1: maximum diameter, measured between the transition
zone and the opposite side of the protoconch; 2: diameter of the nucleus; 3: diameter of the first half+wbhorl,
both measured along an axis perpendicular to the maximum diameter. Figure 2. Partial view of the radula
of Chauvetia mamillata (Risso, 1826), type species of the genus. Specimen from Sagres 17-23 m.
vuelta, siendo los que cubren el canal
sifonal mucho más finos que los de la
parte adapical de la última vuelta. La
terminación de las costillas forma
amplias ondulaciones en la sutura. La
abertura es ovalada, continuada en el
lado abapical por un canal sifonal muy
corto y ancho. En los ejemplares
adultos, el labio está engrosado por su
lado externo, pero esta variz no está
separada de la parte previa de la última
vuelta por ninguna discontinuidad.
El animal es relativamente pequeño
con relación a la concha, con un pie alar-
gado, truncado por delante y redonde-
ado en su extremo posterior, que se
estrecha progresivamente hacia atrás. La
parte posterior del pie está cubierta por
un Opérculo ovalado bien desarrollado,
con núcleo subterminal. La cabeza
carece de morro y es estrecha y bifur-
cada, con los ojos situados lateralmente
en cada rama y los tentáculos cefálicos
delgados. El sifón extendido es cilín-
drico y relativamente largo. El color de
fondo del animal es blanco o amari-
llento con reflejos irisados, y puede
tener un patrón de pigmentos negros
cuya presencia y configuración es
propia de cada especie.
La rádula se ha estudiado en ejem-
plares del Algarve de Chauvetia mami-
llata (Fig. 2). Es muy pequeña con rela-
ción al tamaño del animal, unos 200 um
de largo por menos de 40 um de ancho,
y cada hilera de dientes consta de un
diente central y un par de dientes latera-
les. El diente central es casi cuadrado,
con una cúspide axial, bastante estrecha,
aguzada y situada en el mismo plano
que la base. Los dientes laterales son el
doble de anchos que los centrales y su
borde lleva tres cúspides muy fuertes,
curvadas, la interna más pequeña y la
zi
Iberus, 28 (1), 2010
externa más grande. Por lo que se
conoce en esta especie (véase también
HERGUETA ET AL., 2002) y otras (C.
brunnea en WOODWARD, 1899; varias
especies africanas en PEÑAS Y ROLÁN,
2008) es de poca utilidad para la discri-
minación de especies afines y no se ha
estudiado sistemáticamente en este
trabajo.
La puesta se conoce en el caso de C.
mamillata (HERGUETA ET AL., 2002, y
nuestro material de Sagres) y consta de
una pequeña (menos de 1 mm) cápsula
semitransparente en forma de copa,
sujeta al sustrato por un pedúnculo muy
corto. La parte superior está truncada,
limitada por un reborde marcado, y fun-
ciona como una tapadera que se abre en
el momento de la eclosión. Esta puesta
contiene un solo huevo, que se desarro-
lla en su interior hasta formar una pro-
toconcha de algo más de una vuelta.
Este tipo de puesta y de protoconcha
indica un desarrollo directo sin fase
pelágica, pero, a la vez, estas cápsulas
muy ligeras y generalmente fijadas a las
algas constituyen un potente medio de
dispersión pasiva en el caso de que las
algas sean arrancadas por el oleaje y
floten a la deriva. Considerando la
homogeneidad morfológica que se
observa entre todas las especies, consi-
deramos que este tipo de desarrollo
directo se puede inferir para las demás
especies estudiadas.
Notas nomenclaturales: La nomencla-
tura supraespecífica de este grupo tiene
una historia de una complejidad poco
común. En ocasiones, se ha incluido este
género en la subfamilia Donovaniinae
Casey, 1904 (= Lachesinae L. Bellardi,
1877). Ambos nombres son inválidos
según el artículo 39 del CINZ, al ser los
géneros tipo homónimos más recientes;
sin embargo, al no estar en uso, no
procede establecer un nombre de susti-
tución basado en un nombre genérico
válido.
En cuanto a la nomenclatura gené-
rica, Risso (1826) no deja claro cuáles
son los caracteres que diferencian Lache-
sis de Nesaea, ni hace ninguna compara-
ción entre los dos géneros; además,
existen ciertas incoherencias entre las
28
diagnosis genéricas y las de las especies
incluidas. Una de las diferencias litera-
les entre las dos diagnosis genéricas está
en la espira, que se describe como muy
elevada en Lachesis y moderadamente
elevada en Nesaea, si bien esta diferencia
no es obvia en las figuras. La otra dife-
rencia literal atañe a la descripción del
refuerzo del labio (“peritrema” en el
vocabulario de Risso), ausente en Lache-
sis y sencillo y ligeramente desviado
hacia dentro en Nesaea; en ambos casos
se trataría de los caracteres de los juve-
niles de las figuras 65 y 67 de Risso
(1826). Sin embargo, tanto en las diagno-
sis de Nesaea granulata como de N. mami-
llata este autor indica pliegues (dentícu-
los) en el lado izquierdo (interno) del
peritrema (labio), lo cual solamente
aparece en su figura 69 de N. mamillata,
así como en el lectotipo (ARNAUD, 1978;
OLIVER Y ROLÁN, 2009: figuras 1-2) de
esta especie.
TIBERI (1868) incluye una diagnosis
revisada para cada uno de estos dos
géneros, pero añade confusión al tener
un concepto de Nesaea granulata obvia-
mente distinto al de Risso (1826). Las
diferencias literales entre las diagnosis
genéricas se resumen a una espira bas-
tante elevada, con vueltas algo conve-
xas, sutura poco profunda y labio senci-
llo (es decir, sin variz) en Lachesis, y
espira moderadamente elevada, con
vueltas redondeadas, sutura profunda y
labio varicoso en el lado externo en
Nesaea. Quizás sea más aclaratorio el
reparto de especies que hizo MONTERO-
SATO (1884), teniendo a mano la colec-
ción de Tiberi que había comprado, y
usando Donovania (= Lachesis) para el
grupo de D. mamillata, y Chauvetia (=
Nesaea) para C. granulata sensu Tiberi, o
sea las especies de forma más tosca. Esta
distinción carece de importancia, dado
que Donovania se considera sinónimo de
Chauvetia.
Existe, además, un problema nomen-
clatural acerca de la especie tipo de
Chauvetia. La designación por MONTE-
ROSATO (1884) de Buccinum candidissi-
mum Philippi, 1836 es inválida, al no tra-
tarse de una de las especies original-
mente incluidas por Risso (1826) en el
GOFAS Y OLIVER: Las especies de Chauvetía en el área ibero-marroquí
género sustituido Nesaea. Crosse (1885)
designó formalmente “Nesaea granulata
Tiberi”, lo cual se debe entender como
una referencia al concepto que TIBERI
(1868) tuviera de Nesaea granulata.
Siendo así, deja de ser una de las espe-
cies originalmente incluidas en Nesaea y,
por lo tanto, no se puede aplicar el artí-
culo 69.2.4 del CINZ sobre especies tipo
con identificación errónea, ni aceptar
este acto como designación válida. Sin
embargo, la designación anterior de
Donovania minima (Montagu, 1803) como
especie tipo de Donovania por parte de
BUCQUOY, DAUTZENBERG Y DOLLFUS
(1883) se aplica también a Nesaea (y por
consecuencia, a Chauvetia) en virtud del
artículo 67.8 del CIZN y cumple con los
requisitos establecidos en el artículo
69.2.2 al incluir en la sinonimia de D.
minima una, y una sola (N. mamillata), de
las especies originalmente incluidas en
Nesaea. El propio género Donovania
siendo nomen novum simultáneamente
para dos géneros distintos (Nesaea y
Lachesis), escapa a las especificaciones
del CINZ; de cualquier modo la cues-
tión es irrelevante, puesto que este
nombre también está preocupado.
El lectotipo (ARNAUD, 1978) de
Nesaea granulata Risso, 1826 es un ejem-
plar juvenil de color uniforme que asig-
namos a C. mamillata, con localidad tipo
implícita en los alrededores de Niza. Sin
embargo, BUCQUOY ET AL. (1883) y MON-
TEROSATO (1884), siguiendo el criterio de
TIBERI (1868), consideran que N. granu-
lata es una especie extremadamente rara
y muy distinta, e indican una distribu-
ción en el sur de Italia (golfo de
Nápoles), las costas norteafricanas y el
Adriático. Siendo así, nos parece verosí-
mil la sugerencia por parte de MICALI
(1999: 57) de que Chauvetia granulata
sensu Tiberi sea lo mismo que C. ven-
trosa Nordsieck, 1976, un endemismo
centromediterráneo que no se encuentra
en las costas ibéricas.
Chauvetia mamillata Risso, 1826 (Figs. 2-14, 23-26, 97-98)
Nesaea mamillata Risso, 1826. Hist. Nat. Eur. Mérid., iv: 223-224, lám. 5, fig. 69. [Localidad tipo:
Alpes-Maritimes, Francia].
Nesaea granulata Risso, 1826. Hist. Nat. Eur. Mérid., iv: 223, lám. 5, fig. 67. [Localidad tipo: Alpes-
Maritimes, Francia].
Lachesis mamillata Risso, 1826. Hist. Nat. Eur. Mérid., iv: 211, lám. 5, fig. 65. [Localidad tipo: Alpes-
Maritimes, Francia].
Fusus turritellatus Deshayes, 1835. Exp. Sc. Morée, Moll.: 174, lám. 19 figs. 28, 45. [Localidad tipo:
Peloponeso, Grecia].
Buccinum minimum Philippi, 1836 (non Montagu, 1803). En. Moll. Siciliae, vol. 1: 222. [Localidad
tipo: Palermo y Catania, Sicilia].
Donovania minima var. attenuata Bucquoy, Dautzenberg y Dollfus, 1883. Moll. Roussillon, vol. 1:
113-114.
Donovania minima var. submamillata Bucquoy, Dautzenberg y Dollfus, 1883. Moll. Roussillon, vol.
as lám 15 't1e 30.
Donovania minima var. insignis Bucquoy, Dautzenberg y Dollfus, 1883. Moll. Roussillon, vol. 1: 114.
Material tipo: Nesaea mamillata: lectotipo (Arnaud, 1978), MNHN 6600 y 4 paralectotipos, MNHN
5599; Nesaea granulata: lectotipo (Arnaud, 1978), MNHN 6601; no se han encontrado los tipos de
Lachesis mamillata, pero fueron examinados junto con los dos anteriores por Monterosato (1872: 48),
quién los consideró coespecíficos.
Material estudiado: Baleares: Punta Foradada (Mallorca), 4 c. + 393. (6,1 x 2,8 mm), MNCN; Santa
Ponca ( Mallorca), 6 c. (6,8 x 2,8 mm) + 2j., MNCN; Menorca (Mahón), 8 c. (5 morfotipo no mamilar,
7,2 x 2,7 mm; 3 morfotipo mamilar, 6,0 x 2,5 mm) + 1j., col. Hidalgo, MNCN; Menorca (cabo Natí),
2 c. (7,2 x 3/0 mm) + 1j., MNCN,; Ibiza (Cala Eubarco), 1 c. (6,0 x 2,6 mm) + 25j., MNCN; Ibiza
(Punta Galera), 1 c. (7,5 x 2,9 mm) + 9j., MNCN. Levante ibérico: Columbretes (Placer de la Barra
Alta), 2 c. (morfotipo mamilar, 6,5 x 2,8 mm), MNCN; Norte Columbrete Grande (47 m), 33., MNCN;
Valencia, 17 c. (11 morfotipo mamilar, 6,0 x 2,3 — 7,3 x 3,0 mm, 6 morfotipo no mamilar, 6,3 x 2,9
29
Iberus, 28 (1), 2010
mm) + 4 j., col. Rosselló en col. Azpeitia, MNCN; Valencia, 3 c. (morfotipo no mamilar, 6,3 x 2,5
mm), col. Boscá en col. Azpeitia, MNCN; Cullera (15 m); 80 c. + 200 j. (todas morfotipo mamilar,
5,7 x 2,4 — 7,3 x 3,0 mm), col. JDO; Denia (arrojadas a la playa), 140 c.+ 100 j. (morfotipo mamilar
40 c. +403., 5,8 x 2,4 -— 7,5 x 3,2 mm, morfotipo oscuro 50 c. + 30j., 5,6 x 2,6 — 7,1 x 3,4 mm, morfo-
tipo con bandas 50 c. + 303., 5,5 x 2,3 — 7,0 x 2,6 mm), col. JDO; Jávea (arrojadas a la playa), 11 c. +
173. (3 ej. morfotipo mamilar; 11 morfotipo con bandas, 5,1 x 2,0 mm — 6,0 x 2,6 mm + 14j.), col.
JDO; cabo de Palos, 27 c. (15 morfotipo mamilar, 5,3 x 2,3 — 7,1 x 3,2 mm + 14 j.; 12 morfotipo no
mamilar, 5,8 x 2,4 — 6,6 x 2,7 mm), MNCN, cabo de Palos, 43 c., (morfotipo mamilar, 5,4 x 2,4 — 6,9
x 3,7 mm), col. Hidalgo, MNCN,; cabo de Palos, 5 c. (5,0 x 2,3- 5,7 x 2,6 mm), col. Azpeitia, MNCN;
Cartagena (morfotipo no mamilar), 2 c. (6,2 x 2,5 mm), col. Hidalgo, MNCN. Mar de Alborán y
estrecho de Gibraltar: Cabo de Gata, Punta de Loma Pelada (15 m), 3 j. (morfotipo mamillar);
Almería, 10 c. (morfotipo con bandas, 7,3 x 3,2 —7,9 x 3,4 mm), col. A. Sierra, MNCN; Almería (40
m), 506 c. + 22. (486 morfotipo con bandas, 4,8 x 2,3- 6,4 x 2,7 mmy 40 c. + 22j. morfotipo mamilar,
6,1 x2,6-7,9 x 3,5 mm), col. A. Sierra en col. Cobos, MNCN; Dorsal de la isla de Alborán (35 58'
N, 02” 58" W), 15 c. + 45j. (morfotipo de Alborán, 5,5 x 2,5-7,5 x 3,1 mm), MNCN; La Herradura
(Granada), 2 ej. (morfotipo con bandas, 7,3 x 3,1 — 7,4 x 3,1 mm), col. SG, MNHN; Calahonda
(Málaga), 21 c. (morfotipo con bandas, 5,3 x 2,3 — 6,5 x 2,9 mm), col. SG 1978, MNHN. Sotogrande
(Cádiz), bajamar, 13 ej. (5,5 x 2,4 - 6,3 x 2,7 mm) + 34 c. (5,4 x 2,3 — 6,6 x 2,9 mm), col. SG, MNHN;
bahía de Algeciras, 4 c. + 13. (morfotipo con bandas, 6,6 x 2,9 -7,1 x 3,4 mm), MNCN, Tarifa, Torre
de la Peña, 32 c. (5,8 x 2,6-7,7 x 3,4 mm) + 2j., col. 5SG, MNHN; Cádiz, 12 c. (morfotipo con bandas,
5,6 x 2,5 6,5 x 2,9 mm) col. Hidalgo, MNCN; Cádiz, 5 c. (morfotipo con bandas, 5,1 x 2,5-7,2 x 3,1
mm), col. Azpeitia, MNCN; M' diq (Marruecos), 27 c. + 4 ej. (10 morfotipo algo más claro, resto mor-
fotipo con bandas; 5,2 x 2,3 — 6,4 x 2,6 mm), col. SG, MNHN; Ceuta, Almadraba, 20-36 m, 3 c. (4,9
x 2,2 — 6,3 x 2,8 mm); Ceuta, Sarchal, 0-3 m, 4 ej. (morfotipo con bandas, 5,9 x 2,8 — 6,5 x 3.0 m) + 10
j.; Ceuta, Punta Almina, 25-40 m, 107 ej. + c. (42 morfotipo claro, 6,2 x 2,8 —7,5 x 3,3 mm; 65 mor-
fotipo con bandas, 5,9 x 2,9 mm - 7,3 x 3,1 mm); Ceuta, puerto, 4 ej. (1 morfotipo claro, resto con
bandas; 6,9 x 2,4 - 7,5 x 2,8 mm); Ceuta, Punta del Saudiño, 10 ej. (1 morfotipo con bandas, resto
morfotipo claro; 6,1 x 2,6 — 7,1 x 2,9 mm, ejemplar dibujado); Ceuta, Playa Benítez, 15-25 m, 2 c.
(7,0 x 3,0 -7,4 x 3,3 mm); Benzú, infralitoral rocoso, 87 c. (35 morfotipo claro, 5,3 x 2,4-7,0 x 3,0
mm, 52 morfotipo con bandas oscuras, 5,5 x 2,5 mm —7,3 x 3,1 mm) + 4 ej. (morfotipo oscuro, 5,6
x 2,5 — 6,4 x 2,8 mm) + 4j.; Punta Cires, 1 ej., col. SG, MNHN (morfotipo claro, 6,8 x 2,7 mm) + 1
ej.j.; Tánger, 4 c., col. SG, MNHN (morfotipo claro, 5,5 x 2,4- 6,8 x 2,9 mm). Portugal: Tavira, Pedra
do Barril, 12 c. (5,8 x 2,6 — 6,8 x 2,8 mm); Tavira, Cabanas, 2 ej. + 2 c. (7,0 x 2,7 - 7,3 x 2,9 mm);
Sagres, Baía da Baleeira, bajamar, 72 ej. (5,5 x 2,4 — 6,4 x 2,6 mm) + 20 j.; Sagres, Baía da Baleeira
3-15 m, Sagres, Baía da Baleeira 3-15 m, 60 ej. (5,2 x 2,2 — 6,6 x 2,7 mm) + 10j.; Sagres, Ponta da
Baleeira, 17-23 m, 451 ej. (315 morfotipo con bandas oscuras 6,0 x 2,3 - 7,2 x 2,8 mm, 136 morfo-
tipo affinis 5,6 x 2,3 — 6,8 x 2,7 mm) + 316 j.; Sagres, Pontal dos Corvos, 5 ej. (6,3 x 2,6 —- 7,0 x 2,7
mm); Sagres, Ponta dos Caminhos, 14 c. (6,4 x 2,7 - 6,8 x 2,8 mm) + 4 j. Banco Gorringe: Seamount
1, DWO04, 100 c.; DWO5, 15 c.; DWO0€, 7 c.; DWO8, 2j.; DWO9, 6 c.; DW32, 1 ej. + 13.; DW 'S33, 5 ej. (5,7
x 2,6 mm) + 2j. Banco Ampere: “Seamount 1” DW92, 10 c.; DW98, 4 c.
Descripción: Concha de hasta 7,7 vuelta se añade una escultura de 4-5
mm (generalmente, menos de 7,5 mm),
con 5!/2-6 vueltas de espira convexas,
con la sutura bastante marcada.
Protoconcha de 600-650 um de diá-
metro máximo (núcleo: 300-350 um,
primera media vuelta: 500-550 um).
Desde el mismo núcleo aparece una
escultura de cordoncillos espirales apla-
nados, de grosor similar a los interespa-
cios, en el fondo de los cuales se apre-
cian diminutas laminillas transversales
paralelas a las líneas de crecimiento; hay
20-22 cordoncillos al final de la primera
media vuelta. En la segunda media
30
costillas axiales algo sigmoideas y opis-
toclinas, de anchura similar a los espa-
cios que las separan, sobre las cuales los
cordoncillos discurren sin interrupción.
Teleoconcha con ornamentación
formada por cordones espirales, el doble
de anchos que sus interespacios, y por
costillas axiales amplias sobre las cuales
los cordones discurren sin discontinui-
dad e incluso se ensanchan un poco en
la parte más saliente de la costilla. En la
primera vuelta aparecen normalmente
cuatro cordones espirales (a veces 3, en
poblaciones del Estrecho y de Alborán);
GOFAS Y OLIVER: Las especies de Chauvetía en el área ibero-marroquí
el cordón subsutural se desdobla en las
vueltas siguientes. En la última vuelta,
hay un total de 15-17 cordones, de los
cuales 4 ó 5 continúan los de la penúl-
tima vuelta, los 5 medios son de un
grosor equivalente, y el grosor de los
siguientes cordones decrece marcada-
mente hacia el canal sifonal. Las costillas
axiales son suaves y de igual anchura
que los interespacios y se reparten de
forma aleatoria, sin estar sistemática-
mente alineadas entre una vuelta y otra.
En la penúltima vuelta se aprecian 11-14
costillas axiales (hasta 15 en algunos
ejemplares del Algarve), algo flexuosas
y prosoclinas. La última vuelta alcanza
en torno al 60% de la altura total, y la
abertura en torno al 40%.
Exterior del labio engrosado en los
ejemplares adultos, con los cordones
que persisten, aunque atenuados, sobre
la variz externa. En el interior del labio
se observan, en los ejemplares muy
adultos, hasta 6-7 dentículos poco pro-
nunciados, alargados hacia el interior de
la abertura.
El color de la concha es variable. En
el lectotipo de Nesaea mamillata y en las
demás poblaciones mediterráneas, hasta
un límite occidental que se sitúa en la
provincia de Almería, aparece un patrón
de color amarillento con las interseccio-
nes de cordones y costillas de un color
castaño oscuro (Figs. 3 y 5, “morfotipo
mamilar” en material examinado). En
toda la zona de estudio, el patrón más
frecuente es un color castaño claro con
los cordones resaltados por bandas cas-
tañas más oscuras, incluso sobre el exte-
rior del labio (Figs. 4 y 6). En la isla de
Alborán, en algunas localidades del
Estrecho (Figs. 7, 8) y en los bancos lusi-
tanos (Fig. 14), este patrón puede estar
muy contrastado, con los intervalos
entre cordones hasta casi blancos. En la
zona del Estrecho, aparecen con fre-
cuencia ejemplares de un color amari-
llento claro uniforme (Figs. 9, 10). Final-
mente, en algunos ejemplares de Sicilia,
incluido el posible sintipo de Chauvetia
affinis, se observa un patrón de color con
las intersecciones de los cordones y de
las costillas más claras sobre un fondo
castaño.
Animal con una pigmentación negra
superficial, uniforme o formando
densas manchas negras sobre fondo
blanco; el extremo anterior y la suela del
pie, el espacio que rodea los ojos y la
base del sifón son más claros.
Distribución: Mediterráneo; Atlán-
tico, común en el banco Gorringe y el
litoral del suroeste ibérico desde el cabo
de San Vicente hasta el estrecho de
Gibraltar; esporádico en la costa de
Marruecos (MICALI, 1999), el banco
Ampere y Canarias (PEÑAS Y ROLÁN,
2009)
Notas: Desde el punto de vista
nomenclatural, si se consideran coespe-
cíficas Lachesis mamillata, Nesaea granu-
lata y N. mamillata, fue SCACCHI (1836:
12) quien actuó como primer revisor,
utilizando el nombre Murex granulatus y
citando los otros dos nombres como
sinónimos. Sin embargo, el uso del
nombre C. mamillata está tan generali-
zado que es indeseable un cambio, sobre
todo si tenemos en cuenta que los usos
posteriores del nombre C. granulata se
entienden generalmente en el sentido de
TIBERI (1868).
La forma mediterránea habitual-
mente identificada como Chauvetia
mamillata se caracteriza por un patrón
de color en el que las intersecciones de
los cordones con las costillas están mar-
cadas por manchas subcuadradas de
color castaño oscuro, sobre un fondo
amarillento claro. Este patrón no se ha
encontrado jamás al oeste de la provin-
cia de Almería. Existen patrones de tran-
sición que BUCQUOY ET AL. (1883) distin-
guieron como variedad submamillata. En
esta revisión nos atenemos a la conclu-
sión de HERGUETA ET AL. (2002), de que
hay formas con bandas castañas conti-
nuas o de color castaño uniforme, sin
que por ello se puedan reconocer espe-
cies distintas. En todo el estrecho de
Gibraltar, las formas de color amari-
llento pálido uniforme son frecuentes,
aunque coexisten con las formas con
bandas castañas. En estos ejemplares
amarillentos, el albinismo de la concha
no se extiende al animal, que sigue mos-
trando el patrón con pigmentos negros
superficiales característico de la especie.
31
Iberus, 28 (1), 2010
En los bancos submarinos de
Gorringe y Ampere, al oeste de Portugal
y de Marruecos respectivamente, existen
poblaciones que asignamos a Chauvetia
mamillata y que se parecen mucho a las
formas con bandas del estrecho de
Gibraltar. Son algo más pequeñas, con
un tamaño muy uniforme de unos 6 mm
y el patrón de coloración del animal es
negro, como en los ejemplares del Estre-
cho. Los ejemplares vivos se han reco-
gido en la zona fótica, en la parte más
somera del Banco Gorringe y las nume-
rosas conchas recogidas hasta unos 500
metros de profundidad fueron probable-
mente transportadas desde zonas más
someras. El aislamiento de los bancos,
junto al tamaño necesariamente
pequeño de estas poblaciones, son cir-
cunstancias que propician su divergen-
cia evolutiva, pero, de momento, las
diferencias observadas no pasan de lo
que se puede atribuir a la variación
intraespecífica.
En las muestras de los alrededores
de Sagres, en el extremo sudoccidental
de la Península Ibérica y muy cerca del
límite norte de distribución, la especie
es extremadamente abundante y varia-
ble y se encuentra en las mismas mues-
tras que C. brunnea, C. retifera, C. denti-
fera spec. nov. y C. taeniata spec. nov. En
muchos ejemplares el número de costi-
llas es más elevado (hasta 15 en la
última vuelta, frente a 11-13 habitual-
mente, Figs. 11, 12), y éstas son menos
flexuosas. En este aspecto se aproximan
a lo descrito por MONTEROSATO (1889)
para su Chauvetia affinis “con reticulado
áspero como una lima”; sin embargo,
existen transiciones con el tipo morfoló-
gico más habitual (Fig. 13) y entra en
nuestro concepto de C. mamillata del sur
ibérico. OLIVER Y ROLÁN (2009, figs. 6-9)
ilustran ejemplares de Sicilia identifica-
dos por Monterosato como C-. affinis y
enviados a Locard, actualmente conser-
vados en el MNHN. Al contrario de la
tendencia habitual de C. mamillata en el
Mediterráneo, estos ejemplares sicilia-
nos tienen las intersecciones de los cor-
dones y las costillas más claras que el
color de fondo, con lo que no se puede
descartar que se trate de una especie
distinta. En los ejemplares portugueses,
el color más oscuro se sitúa, como es
habitual en C. mamillata, sobre los cordo-
nes, aunque poco contrastado.
MICALI (1999) distingue a nivel espe-
cifico entre Chauvetia mamillata y C.
turritellata e ilustra bajo este último
nombre tres animales vivos de Aci
Trezza (Sicilia) con un patrón de
manchas negras mucho más disperso
(Página derecha) Figuras 3-14. Chauvetia mamillata (Risso, 1826), principales variaciones de la
concha en la zona de estudio. 3, 4: patrón con las intersecciones de cordones y costillas de un color
castaño oscuro, exclusivo del Mediterráneo, y patrón con bandas castañas, Denia (6,4 y 6,2 mm);
5, 6: los mismos patrones de color, Almería (6,0 y 5,9 mm); 7, 8: patrón con bandas castañas sobre
los cordones, habitual en el mar de Alborán, Estrecho y Atlántico, Punta Almina (Ceuta), 32-40 m
(6,4 mm); 9, 10: patrón de color muy pálido, frecuente en el Estrecho, Punta del Saudiño (6,7
mm); 11, 12: ejemplar de Sagres, con escultura más fina al modo de Chauvetia affinis (5,8 mm);
13: ejemplar de la misma localidad, con la escultura más habitual en C. mamillata del mar de
Alborán y del Estrecho; 14: ejemplar del Banco Gorringe, Seamount 1, DW33, 55-70 m (5,7
mm).
(Right page) Figures 3-14. Chauvetia mamillata (Risso, 1826), most common variants of the shells in
the study area. 3, 4: pattern with dark brown intersections of cords and ribs, found only in the Medite-
rranean, and pattern with brown bands, Denia (6.4 and 6.2 mm); 5, 6: the same colour patterns,
Almería (6.0 and 5.9 mm); 7, 8: colour pattern with brown bands over the cords, usual in the Alborán
Sea, the Straits and the Atlantic, Punta Almina 32-40 m (6.4 mm); 9, 10: very pale colour pattern,
frequent in the Straits, Punta del Saudiño (6.7 mm); 11, 12: specimen from Sagres, with a sculpture in
the mode of Chauvetia affinis (5.8 mm); 13: specimen from the same locality, with sculpture more as
usual in C. mamillata from Alborán Sea and the Straits; 14: specimen from Gorringe Bank, “Seamount
1” DW33, 55-70 m (5.7 mm).
32
GOFAS Y OLIVER: Las especies de Chauvetia en el área ibero-marroquí
Iberus, 28 (1), 2010
Figuras 15-18. Chauvetia brunnea (Donovan, 1804). 15: ejemplar de lle de Sein, Bretaña (4,7
mm); 16: ejemplar de La Toja, Galicia (4,0 mm); 17, 18: ejemplar de Baia da Baleeira Sagres, Por-
tugal (5,5 mm); nótese el aspecto liso del exterior de la variz. Figuras 19-22. Chauvetia maroccana
spec. nov. 19-21: holotipo de El Jadida (4,2 mm); 22: ejemplar de Essaouira (4,8 mm).
Figures 15-18. Chauvetia brunnea (Donovan, 1804). 15: specimen from lle de Sein, Brittany (4.7
mm); 16: specimen from La Toja, Galicia (4.0 mm); 17, 18: specimen from Baia do Martinhal, Sagres,
Portugal (5.5 mm); note the smooth appearance of the exterior of the varix. Figures 19-22. Chauvetia
maroccana spec. nov. 19-21: holotype from El Jadida (4.2 mm); 22: specimen from Essaouira (4.8
mm).
que en los ejemplares del sur de la
Península Ibérica. Dicho autor no cita
esta última especie en España, aunque sí
en el sur de Marruecos, Canarias (se
trata de la forma referida por OLIVER Y
ROLÁN, 2009 a Chauvetia affinis) y
Senegal.
En el material estudiado del área ibero-
marroquí, a pesar de una indiscutible
34
variabilidad, no hemos encontrado crite-
rios que permitan distinguir más de una
especie en lo que tratamos aquí como C.
mamillata. No obstante, se debe de tener
en cuenta que la localidad tipo de Fusus
turritellatus se sitúa en el Peloponeso, en
la cuenca oriental del Mediterráneo y que
la revisión de dicho taxón debe contar con
material procedente de esta zona.
GOFAS Y OLIVER: Las especies de Chauvetía en el área ibero-marroquí
Chauvetia brunnea (Donovan, 1804) (Figs. 15-18, 27-30, 99-100)
Buccinum minimum Montagu, 1803. Test. Brit.: 247, lám. 8, fig. 2. [Localidad tipo: Devon, Gran
Bretaña; preocupado por Buccinum minimum Berckenhout, 1795; Buccinum minimum Turton,
1802].
Buccinum brunneum Donovan, 1804. Brit. Sh. vol. 5: lám. 179, fig. 2. y explicación de la lámina (no
paginada) [Localidad tipo: Cornwall, Gran Bretaña].
Fusus subnigris Brown, 1827. III. Conch.: 5, lám. 48, figs. 58-59.
Buccinum rubrum Potiez y Michaud, 1838. Catal. Mus. Douai, : 381, lám. 32, fig. 17-18.
Lachesis minima var. pallescens Jeffreys, 1867. Brit. Conch. vol. iv: 313.
Material estudiado: Canal de la Mancha y Bretaña: Guernesey, Rocquaine Bay (49* 27” N, 02* 39
W), bajamar, 2 ej. (4,4 x 1,9 mm, ejemplar dibujado), col. SG, MNHN,; Roscoff, “les Cochons Noirs”,
20 m, 1 ej. (4,6 x 2,1 mm), col. SG, MNHN; Ploumanac'h, en Corallina en bajamar, 5 j., col. SG,
MNHAN; Ile de Sein, bajamar, 2 ej. (4,3 x 2,1 -4,7 x 2,1 mm) + 5j.; Lampaul-Ploudalmézeau, bajamar,
23., col. SG, MNAHN; Baie de Bertheaume 20-30 m, 17 c. (3,6 x 1,8 - 4,7 x 2,1 mm), col. SG, MNHN.
Asturias: Muros, 1 ej. (4,7 x 2,1 mm, ejemplar dibujado). Galicia: La Toja, 1c. (4 x 1,8 mm), col. JDO.
Portugal: Sagres, Ponta da Baleeira 17-23 m, 52 ej. (4,3 x 2,3 -5,6 x 2,1 mm); Sagres, Baia da Baleeira,
bajamar, 10 ej. (4,5 x 2,0— 5,3 x 2,3 mm); Sagres, Baia da Baleeira, 3-15 m, 1 ej. (5,0 x 2,0 mm); Sagres,
Ponta dos Caminhos, 4 c. (4,5 x 2 - 4,8 x 2,1 mm); Sagres, Pontal dos Corvos, 1 ej. (5,0 x 2,1 mm);
Tavira, Pedra do Barril, 3 ej. (5,4 x 2,4 — 5,7 x 2,4 mm); Tavira, Cabanas, 1 ej. (5,7 x 2,4 mm) + 1j.
Estrecho de Gibraltar y mar de Alborán: Calahonda (Málaga), 1 ej. (5,2 x 2,3 mm), col. SG 1978,
MNHN, Sotogrande (Cádiz), bajamar, 2 ej. (morfotipo claro, 4,9 x 2,0 - 5,6 x 2,5mm) +2 c. (4,2 x
1,9 - 4,9 x 2,2 mm), col. SG, MNHN,; Tarifa, Torre de la Peña, 1 c. (5,2 x 2,2 mm), col. SG, MNHN;
Ceuta, Sarchal, 0-3 m, 4 ej. (4,2 x 1,8 — 5,0 x 2,1 mm); Ceuta, Punta Almina, 25-40 m, 4 ej. (conchas
muy claras, 5,0 x 2,2 — 5,2 x 2,2 mm, ejemplar dibujado); Ceuta, Benzú, 04 m, 1 ej. (5,0 x 3,2 mm,
ejemplar dibujado).
Descripción: Concha de hasta 5,7 mm
(generalmente, menos de 5 mm), con
cuatro a cinco vueltas de espira conve-
xas, con la sutura bastante marcada.
Protoconcha de 500-550 um de diá-
metro máximo (núcleo: 260-300 um,
primera media vuelta: 400-450 um). El
núcleo es inicialmente casi liso, luego
aparece una escultura de cordoncillos
aplanados y desiguales, más anchos que
los interespacios, en el fondo de los
cuales se aprecian diminutas laminillas
transversales paralelas a las líneas de
crecimiento. En algunos ejemplares bien
conservados, los cordoncillos se mani-
fiestan desde el núcleo; hay 20-25 cor-
doncillos al final de la primera media
vuelta. En la segunda media vuelta
aparece una escultura de costillas
axiales algo sigmoideas y opistoclinas,
de anchura similar a los espacios que las
separan, y sobre las cuales los cordonci-
llos tienden a atenuarse.
Teleoconcha con ornamentación
formada por cordones espirales, el doble
de anchos que sus interespacios, y por
costillas axiales amplias, sobre las cuales
los cordones discurren sin discontinui-
dad o incluso se ensanchan un poco en
la parte más saliente de la costilla. En la
primera vuelta aparecen normalmente
cuatro cordones, que persisten en las
vueltas sucesivas de la espira; el cordón
subsutural está a veces algo desdoblado
al final. En la última vuelta hay un total
de 17-18 cordones, de los cuales cuatro
continúan los de la penúltima vuelta, los
5 medios son de un grosor equivalente y
los que cubren el canal sifonal son mar-
cadamente más finos. Las costillas
axiales son 9-10 en la penúltima vuelta,
casi ortoclinas, algo más estrechas que
los interespacios y con tendencia a aline-
arse aproximadamente entre una vuelta
y otra. La última vuelta alcanza el 61%
de la altura total, mientras que la aber-
tura ocupa en torno al 42%.
Exterior del labio muy engrosado en
los ejemplares adultos, sobre todo en su
porción adapical, que suele formar una
variz en la cual los cordones están extre-
madamente atenuados o incluso llegan
a desaparecer, siendo la parte adapical
completamente lisa. En el interior del
0)
Iberus, 28 (1), 2010
labio se observan, en los ejemplares
muy adultos, hasta 6-7 dentículos poco
pronunciados, alargados hacia el inte-
rior de la abertura.
El color de la concha es castaño uni-
forme. Animal de color amarillento uni-
forme, con puntitos blancos brillantes.
Distribución: Desde el Canal de la
Mancha hasta el estrecho de Gibraltar,
sin citas comprobadas para el Medite-
rráneo más al este del extremo occiden-
tal del mar de Alborán. Esta distribución
un tanto extraña la tiene también el ris-
sóido Setia pulcherrima (Jeffreys, 1848) y
el pulmonado Otina ovata (Brown, 1827).
Notas: Coincidimos con MONTERO-
SATO (1884: 136) y con HERGUETA ET AL.
(2002) en considerar que esta especie
atlántica con localidad tipo en Gran
Bretaña es distinta a la que predomina
en el Mediterráneo occidental (C. mami-
llata) y que se ha confundido habitual-
mente con ella (BuUCQOUOY ET AL. 1883,
entre otros).
Chauvetia brunnea es más pequeña
que la especie mediterránea, superando
poco los 5 mm, tiene menos costillas
axiales en la última vuelta (9-10), el lado
adapical externo de la variz del labio es
liso y brilloso, sin que se marque la con-
tinuación de los cordones de la última
vuelta y la concha suele ser monocroma;
en C. mamillata, los cordones, y even-
tualmente sus bandas oscuras, se conti-
núan, aunque atenuados, sobre la parte
externa del labio. El animal de C.
brunnea es siempre amarillento con pun-
titos blancos, sin ninguna marca negra
por muy oscura que sea la concha,
mientras que es negro liso o densamente
moteado de negro en C. mamillata,
también en los individuos con concha
clara.
Las muestras de los alrededores de
Ceuta contienen unos pocos ejemplares
que se caracterizan por un color muy
claro, amarillento, de la concha. El
animal de estos ejemplares carece com-
pletamente de pigmentos negros y se
ajusta al patrón observado en el Atlán-
tico europeo; por esta razón, se conside-
ran como pertenecientes a C. brunnea.
Chauvetia maroccana spec. nov. (Figs. 19-22, 31-34)
Material tipo: Holotipo [ej., 4,2 x 1,9 mm], col. SG 1991 (MNHN 22868) y 10 paratipos (5 ej., MNHN
22869, 5 ej. MNCN 15.05/53585), todos de la localidad tipo.
Material estudiado: Marruecos: Temara, bajamar, 3 ej. (4,5 x 1,9 - 4,7 x 2,1 mm) + 7 j.; El Jadida,
bajamar, 43 ej. (3,9 x 1,8 - 4,9 x 2,1 mm; incluye material tipo) + 28j. Essaouira, bajamar, 41 ej. + 40
j. (4,2 x 1,9 - 5,1 x 2,3 mm).
Localidad tipo: El Jadida, Marruecos (33* 15,1” N — 08” 29,7” W, intermareal).
Etimología: El nombre alude a la distribución geográfica de la especie en la costa marroquí.
Descripción: Concha de hasta 5,1 mm
(generalmente menos de 5 mm), con
unas cuatro vueltas de espira convexas,
con la sutura bastante marcada.
Protoconcha de 500-550 um de diá-
metro máximo (núcleo: 260-300 um,
primera media vuelta: 400-450 um).
Desde el núcleo aparece una escultura
de cordoncillos aplanados, desiguales,
más estrechos que los interespacios o
iguales a ellos, en el fondo de los cuales
se aprecian diminutas laminillas trans-
versales paralelas a las líneas de creci-
miento; hay 20-25 cordoncillos al final
de la primera media vuelta. En la
segunda media vuelta aparece una
36
escultura de costillas axiales algo sig-
moideas y opistoclinas, de anchura
similar a los espacios que los separan,
sobre las cuales los cordoncillos tienden
a atenuarse.
Teleoconcha con ornamentación
formada por cordones espirales altos,
más estrechos o igual de anchos que sus
interespacios, y por costillas axiales
amplias, sobre las cuales los cordones
discurren sin discontinuidad. En la
primera vuelta aparecen cuatro cordo-
nes, que persisten en las vueltas sucesi-
vas de la espira y están nítidamente
delimitados de los interespacios. En la
última vuelta hay un total de 18-20 cor-
GOFAS Y OLIVER: Las especies de Chauvetía en el área ibero-marroquí
Figuras 23, 34. Protoconchas en vista lateral y apical, todas a la misma escala. 23-24: Chauvetia
mamillata, Punta de Loma Pelada, Almería; 25, 26: Chauvetia mamillata, Punta da Baleeira,
Sagres; 27, 28: Chauvetia brunnea, Tarifa; 29, 30: Chauvetia brunnea, Baia da Baleeira, Sagres; 31-
34: Chauvetia maroccana spec. nov., El Jadida.
Figures 23, 34. Protoconchs in lateral and apical views, all to scale. 23-24: Chauvetia mamillata,
Punta de Loma Pelada, Almería; 25, 26: Chauvetia mamillata, Punta da Baleeira, Sagres; 27, 28:
Chauvetia brunnea, Tarifa; 29, 30: Chauvetia brunnea, Bay of Baleeira, Sagres; 31-34: Chauvetia
maroccana spec. n02., El Jadida.
3/7
Iberus, 28 (1), 2010
dones, de los cuales cuatro continúan
los de la penúltima vuelta, los 5 medios
son de un tamaño equivalente y los que
cubren el canal sifonal son marcada-
mente más finos. Las costillas axiales
son 9-10 en la penúltima vuelta, relati-
vamente rectas, equivalentes a los inte-
respacios y con tendencia a alinearse
aproximadamente entre una vuelta y
otra. La última vuelta alcanza menos del
60% de la altura total, mientras que la
abertura ocupa en torno al 40%.
Exterior del labio engrosado en los
ejemplares adultos, formando una variz
en la cual los cordones se continúan,
aunque algo atenuados. En el interior
del labio se observan, en los ejemplares
adultos, hasta 5-6 dentículos poco pro-
nunciados, alargados hacia el interior de
la abertura.
El color de la concha es castaño
oscuro uniforme. Animal de un color
amarillento uniforme, con puntos de
color blanco brillante.
Distribución: Esta especie se ha
encontrado hasta ahora sólo en las
muestras procedentes de tres localida-
des de la costa atlántica marroquí, en
lavados de algas del piso intermareal.
Notas: Se parece mucho a Chauvetia
brunnea por el tamaño y el color del
animal, pero se diferencia claramente
por tener hasta una vuelta menos en la
teleoconcha, un perfil de espira menos
puntiagudo en un tamaño comparable y,
sobre todo, en la forma de los cordones
espirales, que son de igual anchura o
más estrechos que los interespacios
(compárense las figuras 27 y 29 con las
figuras 31 y 33) y ello, desde las prime-
ras vueltas. Los cordones espirales están
nítidamente delimitados y, a diferencia
de C. brunnea, se continúan sobre la
parte externa del labio. Chauvetia maroc-
cana forma abundantes poblaciones en
el piso intermareal de dos de los tres
lugares donde fue recolectada, siendo
allí uno de los moluscos más abundan-
tes, mientras C. brunnea suele ser poco
abundante, incluso en localidades como
Sagres, donde son abundantes otras
especies del género.
La especie marroquí tiene también
un cierto parecido con Chauvetia borgesi
Oliver y Rolán 2009, de Canarias, pero,
con un tamaño comparable, esta última
se diferencia por tener cinco cordones
espirales en las primeras vueltas de la
teleoconcha, que son más anchos que los
interespacios; el animal de C. borgesi se
diferencia por tener el sifón pigmentado
de negro.
Chauvetia procerula (Monterosato, 1889) (Figs. 35-41, 42-45)
Donovania procerula Monterosato, 1889. J. Conchyl. 37: 116. [Localidad tipo: Casablanca, Marrue-
cos y Argel, Argelia].
Material tipo: No mencionado por Micali (1999) entre las Chauvetia de la colección Monterosato en
Roma.
Material examinado: Levante ibérico: Islas Columbretes (Placer de la Barra Alta), 2 c. (7,9 x 2,9
mm), MNCN,; Denia (arrojadas a la playa), 2 c. (6,5 x 2,7 — 8,3 x 3,5 mm) + 6j., col. JDO; Cullera
(15 m) 3 c. (6,8 x 2,7 — 7,3 x 3,0 mm), col. JDO; Jávea (arrojada a la playa), 1j., col. JDO. Mar de
Alborán y estrecho de Gibraltar: isla de Alborán, 5 c. (7,1 x 3,0 — 7,9 x 3,1 mm) + 35 j., col. JDO;
Rincón de la Victoria (Málaga), 1 c. (8,3 x 3,3 mm), col. SG, MNHN; Benalmádena costa (Málaga),
2 ej. (6,8 x 2,7 —7,0 x 2,8 mm), col. SG; Sotogrande (Cádiz), 1 j.; Tarifa, Torre de la Peña, 1 c. (7,3 x
3,0 mm); Barbate, 29 m, 1j., col. SG; Cabo de Trafalgar (36” 08” N, 06” 01” W), 4j., MNCN; Cádiz, 22
c. (7,2 x 3,1 - 8,5 x 3,7 mm) + 4j., col. Azpeitia MNCN; M'dig (200 m), 1 c. (7,3 x 3,1 mm), col. “Al
Mounir”, MNHN,; Ceuta, Punta Almina, 25-40 m, 3 ej. (7,2 x 3,0 - 8,2 x 3,4 mm) + 2j.; Ceuta, playa
en el puerto, 2 c. (8,1 x 3,1 y 8,4 x 3,2 mm); Ceuta, Punta del Saudiño, 1 ej. (7,2 x 3,0 mm, ejemplar
dibujado); Tánger, 12 c. (6,8 x 2,9 - 8,1 x 3,3 mm), coll. SG, MNHN. Portugal: Tavira, Pedra do
Barril, 33 c. (6,7 x 2,8 — 8,7 x 3,6 mm) + 34 c.j.; Algarve (36" 58,0” N, 08% 55,6" W, 65 nl (AE
3,2 mm) + 1j., col. Péres, Gautier, Vacelet 7,8,1957, MNHN,; Sagres, Baía da Baleeira, 3-15 m, 36 ej.
(6,6 x 2,7 - 9,4 x 3,6 mm, ejemplar dibujado); Sagres, Ponta da Baleeira, 17-23 m, 31 ej. (7,7 x 3,2 —
9,7 x 3,6 mm, ejemplar dibujado) + 30j.; Sagres, Pontal dos Corvos, 5 ej. (8,0 x 3,3 - 8,9 x 3,5 mm);
38
GOFAS Y OLIVER: Las especies de Chauvetía en el área ¡ibero-marroquí
Figuras 35-41. Chauvetia procerula (Monterosato, 1889). 35, 36: ejemplar de Benalmádena,
Málaga (6,8 mm); 37: ejemplar de Denia (7,2 mm); 38, 39: ejemplar con el patrón de color con
banda blanca, Benzú, Ceuta (7,2 mm); 40: ilustración de PALLARY (1902, fig. 14), correspondiente
al concepto que dicho autor tenía de Chauvetia decorata Monterosato, 1889, Tánger; 41: otro
ejemplar con banda blanca, Cádiz (7,7 mm).
Figures 35-41. Chauvetia procerula (Monterosato, 1889). 35, 36: specimen from Benalmádena,
Málaga (6.8 mm); 37: specimen from Denia (7.2 mm); 38, 39: specimen with a colour pattern with a
white band, Benzú, Ceuta (7.2 mm); 40: illustration in PALLARY (1902, fig. 14) matching this authors
concept of Chauvetia decorata Monterosato, 1889, Tangiers; 41: another specimen with a white band,
Cádiz (7.7 mm)
39
Iberus, 28 (1), 2010
Sagres, Ponta dos Caminhos, 9 c. (7,8 x 3,2 — 8,8 x 3,6 mm); entre Faro y Sagres, redes de pesca, 2
ej. (subadultos, 6,5 x 2,5—7,3 x 3,0 mm, ejemplares dibujados); entre Salema y Praia da Luz, redes
de pesca —70 m, 10 ej. (morfotipo claro, 7,3 x 3,0 - 8,6 x 3,4 mm). Patrón de color con banda blanca:
Punta Almina (Ceuta), 25-40 m, 1 c. (7,2 x 2,6 mm); Ceuta, Punta del Saudiño, 2 ej. (7,0 x 2,9 - 7,1
x 3,1 mm, ejemplar dibujado); Ceuta, Benzú, 12 c. 6,4 x 2,7 -7,7 x 3,1 mm), col. SG, MNHN; Tánger
(arrojadas a la playa), 7 c. (6,0 x 2,7 — 6,8 x 2,8 mm), col. SG, MNHN,; Asilah, 1 j., col. SG, MNHN;
Mohammedia, 2 c. (6,7 x 2,6 mm), col. SG, MNHN.
Descripción: Concha de hasta 9,7 mm
(generalmente menos de 8 mm), con
6-6! / 2 vueltas de espira convexas, con la
sutura bastante marcada.
Protoconcha de 600-650 um de diá-
metro máximo (núcleo: 350-400 um,
primera media vuelta: 500-550 um).
Desde el mismo núcleo aparece una
escultura de cordoncillos aplanados y
anchos, bien visibles en microscopía
óptica, desiguales entre sí, mucho más
anchos que los interespacios, en el fondo
de los cuales se aprecian diminutas
laminillas transversales paralelas a las
líneas de crecimiento; hay 15-16 cordon-
cillos al final de la primera media
vuelta. En la segunda media vuelta se
añade una escultura de costillas axiales
algo sigmoideas y opistoclinas, de
anchura progresivamente mayor hasta
el principio de la teleoconcha; en esta
parte, los cordoncillos espirales se
vuelven más altos o pasan a ser más
estrechos que los interespacios.
Teleoconcha con ornamentación
formada por cordones espirales, de
anchura equivalente a sus interespacios,
y por costillas axiales amplias sobre las
cuales los cordones discurren sin discon-
tinuidad e incluso se vuelven más gruesos,
formando tubérculos a modo de perlas.
En la primera vuelta aparecen cuatro cor-
dones espirales; el cordón subsutural se
desdobla en la tercera vuelta, de modo que
hay 5 cordones en la penúltima vuelta. En
la última vuelta, hay un total de 19-20 cor-
dones, de los cuales 5 continúan los de la
penúltima vuelta, los 5 medios son de un
tamaño equivalente y, en la parte abapi-
cal, los cordones decrecen progresiva-
mente en tamaño. Las costillas axiales son
altas y más estrechas que los interespacios
y tienden a alinearse entre vueltas sucesi-
vas. En la penúltima vuelta se aprecian 9-
10 costillas axiales algo prosoclinas. La
última vuelta alcanza el 57% de la altura
40
total, mientras que la abertura ocupa en
torno al 39%.
Exterior del labio muy engrosado en
los ejemplares adultos con los cordones
continuados, aunque algo atenuados,
sobre la variz externa. El perfil de la
última vuelta está marcadamente estre-
chado en su tercio abapical alrededor
del canal, que así aparece más promi-
nente. En el interior del labio se obser-
van, en los ejemplares adultos, hasta 7-8
dentículos poco pronunciados, alarga-
dos hacia el interior de la abertura.
El color de la concha es habitual-
mente castaño uniforme, en algunos
casos amarillento claro; en ningún caso
los cordones se destacan con un color
distinto a los interespacios. En el estre-
cho de Gibraltar y en la costa atlántica
marroquí aparecen ejemplares con la
protoconcha casi blanca, la teleoconcha
castaña en la mitad adapical de las
vueltas y en la parte abapical de la
última vuelta, con una zona blanca en la
mitad abapical de las vueltas de espira,
continuada como una banda en la mitad
de la última vuelta.
El animal es de color negro uni-
forme, tendiendo a veces a más pálido
en la parte anterior del pie y en los ten-
táculos cefálicos; una zona descolorida
bajo el opérculo, donde éste hace con-
tacto con el pie.
Distribución: Mediterráneo; Atlán-
tico, común en el litoral del suroeste
ibérico desde el cabo de San Vicente
hasta el estrecho de Gibraltar; esporá-
dico en la costa de Marruecos (MONTE-
ROSATO, 1889; MICALI, 1999) y Canarias
(OLIVER Y ROLÁN, 2009). La cita en
Senegal de MiIcaLI (1999) se da por
dudosa, puesto que la especie no fue
confirmada en el extenso material estu-
diado por OLIVER Y ROLÁN (2008).
Notas: Los cordoncillos de la proto-
concha en esta especie son marcada-
GOFAS Y OLIVER: Las especies de Chauvetia en el área ibero-marroquí
Figuras 42-47. Protoconchas en vista lateral y apical. 42, 43: Chauvetia procerula, con patrón de
color uniforme, isla de Alborán y Denia. 44, 45: Chauvetia procerula, con banda blanca, Benzú.
46, 47: Chauvetia recondita, Denia e isla de Alborán.
Figures 42-47. Protoconchs in lateral and apical views, all to scale. 42, 43: Chauvetia procerula, with
a uniform colour pattern, Alborán Island and Denia. 44, 45: Chauvetia procerula, with a white
band, Benzú. 46, 47: Chauvetia recondita, Denia and Alborán Island.
mente más anchos que en C. mamillata;
la teleoconcha difiere por tener las costi-
llas axiales más altas y los cordones no
más anchos que los interespacios. El
perfil de la última vuelta está más mar-
cadamente estrechado alrededor del
sifón que en las demás especies.
El color de la concha suele ser
castaño uniforme, sin formar bandas
sobre los cordones. Las formas con
banda blanca del estrecho de Gibraltar y
de Marruecos fueron identificadas por
PALLARY (1902) con Chauvetia decorata
Monterosato, 1889. Este patrón de color
de la concha existe en al menos cuatro
especies de la zona y, teniendo en
cuenta que Pallary se correspondía con
Monterosato durante su estudio de la
fauna de Marruecos, podríamos pensar
que su interpretación (Fig. 40) ha de ser
la correcta. Sin embargo, cuesta aceptar
que MONTEROSATO (1889), en el auge de
su trayectoria malacológica, describiese
en el mismo trabajo dos variantes de
color bajo nombres genéricos (Donovania
y Chauvetia) distintos, por lo que identi-
ficamos C. decorata con otro taxón des-
crito más adelante.
Estos ejemplares con banda blanca
coinciden con los demás de C. procerula
en la protoconcha con cordoncillos
anchos, así como en el color completa-
mente negro del animal. Por esta razón,
consideramos tentativamente estos
ejemplares dentro de la variabilidad de
C. procerula, a falta de otros caracteres
diferenciales que se puedan correlacio-
nar con el color de concha.
41
Iberus, 28 (1), 2010
MICALI (1999: 58) figuró ilustró un
animal vivo de Aci Trezza (Sicilia) atri-
buido a C. procerula. Sin embargo, este
animal se diferencia por un color del
cuerpo amarillento con puntos brillan-
tes, completamente distinto de lo obser-
vado en los ejemplares del sur de la
Península Ibérica. Cabe la posibilidad
de que sea una especie distinta, pero
hay que ser prudente en la interpreta-
ción de este carácter, puesto que hemos
observado ejemplares con la pigmenta-
ción negra atenuada O ausente en
algunas muestras del Algarve.
Chauvetia recondita (Brugnone, 1873) (Figs. 46-47, 48-51, 103)
Lachesis recondita Brugnone, 1873. Misc. Malac.: 10, fig. 15. [Localidad tipo: Palermo, Sicilia, fósil
del Plio-Pleistoceno].
Lachesis vulpecula Monterosato, 1874. J. Conchy]l.: 276. [Localidad tipo: Capo San Vito, Sicilia].
? Chauvetia vulpecula attenuata Nordsieck, 1976. [Preocupado por Donovania minima var. attenuata
Bucquoy, Dautzenberg y Dollfus, 1883].
Material tipo: Dos sintipos de Lachesis vulpecula en MNHN, col. Locard ex Monterosato (4,8 x 2,2
- 5,2 x 2,3 mm). Los tipos de L. recondita podrían estar en la col. Jeffreys del USNM.
Material estudiado: Islas Baleares: Ibiza (Bleda Mayor), 4 j., MNCN,; Ibiza (Cala Eubarco), 2 j.,
MNCN. Levante ibérico: Denia, 10 c. (5,3 x 2,1 — 6,4 x 2,6 mm) + 13j., col. JDO; Cullera, 5 c. + 23.
(5,9 x 2,7 — 5,8 x 2,2 mm), col. JDO; Columbretes 1c. +1 j., MNCN. Sicilia: Banco Skerki (37 53,6'
N, 10” 48,6' E, 113 m), 1 c. (4,8 x 2,1 mm), leg. Taviani 12-1996, Museo di Zoologia, Bologna. Mar
de Alborán y estrecho de Gibraltar: Dorsal de la isla de Alborán (35” 58' N, 02” 58' W), 43., MNCN;
isla de Alborán, 16 c. (5,5 x 2,7 — 6,5 x 2,9 mm) + 50j., col. JDO; Cádiz, 1 c. (5,6 x 2,5 mm), col. Azpei-
tia, MNCN; Ceuta, Punta Almina, 25-40 m, 1 ej. +5 c. (4,5 x 2,3 - 5,5 x 2,5 mm, ejemplar dibujado);
Ceuta, Almadraba 20-36 m, 2 c. (5,9 x 2,7 mm); M'diq (35” 41,5 N, 05” 12,0” W, 200 m), 1 c. (4,7 x
2,2 mm), col. “Al Mounir”, MNHN; Marbella (Málaga), 1 j.; Estrecho de Gibraltar [sin más preci-
sión], 3j. Portugal: Algarve (36” 58,0” N, 08% 55,6' W, 65 m), 1 c. (5,2 x 2,4 mm), leg. Péres, Gautier,
Vacelet 7-8-1957, MNHN,; Tavira, 15 ej. (3,7 x 1,8 — 5,8 x 2,4 mm).
Descripción: Concha de hasta 6,5 mm,
con 5*/2-6 vueltas de espira convexas,
con la sutura muy marcada.
Protoconcha de 620-650 um de diá-
metro máximo (núcleo: 350-400 um,
primera media vuelta: 500 um). Desde el
mismo núcleo aparece una escultura de
cordoncillos altos, bien visibles en micros-
copía óptica, de anchura equivalente a los
interespacios, en el fondo de los cuales se
aprecian diminutas laminillas transver-
sales paralelas a las líneas de crecimiento;
hay 16-18 cordoncillos al final de la
primera media vuelta. Desde el inicio de
la segunda media vuelta se añade una
escultura de costillas axiales algo sigmoi-
deas y opistoclinas, altas, más estrechas
que los espacios que las separan, sobre las
cuales continúan los cordoncillos.
Teleoconcha con ornamentación
formada por cordones espirales altos, algo
más estrechos que sus interespacios, y por
costillas axiales sobre las cuales los cor-
dones discurren formando tubérculos a
42
modo de perlas. En la primera vuelta apa-
recen cuatro cordones espirales que se
mantienen a lo largo de la espira. En la
última vuelta, hay 14-15 cordones, de los
cuales 4 continúan los de la penúltima
vuelta, los 5 medios son de un tamaño
equivalente y, en la parte abapical, los cor-
dones decrecen algo en tamaño. Las cos-
tillas axiales son altas y más estrechas que
los interespacios y se distribuyen aleato-
riamente entre vueltas sucesivas. En la
penúltima vuelta se aprecian 9-10 costillas
axiales algo prosoclinas. La última vuelta
alcanza el 60% de la altura total, mientras
que la abertura ocupa en torno al 40%.
Exterior del labio muy engrosado en
los ejemplares adultos, con los cordones
continuados sobre la variz externa. En el
interior del labio se observan, en los
ejemplares adultos, hasta 6-7 dentículos
poco pronunciados, alargados hacia el
interior de la abertura.
El color de la concha es castaño, en
algunos casos amarillento claro, frecuen-
GOFAS Y OLIVER: Las especies de Chauvetía en el área ¡ibero-marroquí
Figuras 48-51. Chauvetia recondita (Brugnone, 1873). 48, 49, ejemplar de Punta Almina, Ceuta
(5,2 mm); 50, 51: ejemplares de la isla de Alborán (5,5 y 4,5 mm).
Figures 48-51. Chauvetia recondita (Brugnone, 1873). 48, 49, specimen from Punta Almina, Ceuta
(5.2 mm); 50, 51: specimens from Alborán Island (5.5 and 4.5 mm).
temente con una línea más oscura a lo
largo de los cordones espirales. El animal
es de color negro moteado, tendiendo a
más pálido en la parte anterior del pie, la
base del sifón y los tentáculos cefálicos.
Distribución: Conocida en el Medite-
rráneo desde la costa oriental de Sicilia
hasta el mar de Alborán y, en el Atlán-
tico, desde el cabo de San Vicente hasta
Marruecos.
Chauvetia candidissima (Philippi, 1836) (Figs. 52-54, 63-64)
Buccinum candidissimum Philippi, 1836. Enum. Moll. Siciliae, vol. 1: 222, lám. 11, fig. 18. [Localidad
tipo: Catania, Sicilia].
Material estudiado: Sicilia: Localidad sin precisar, 1 c. (9,6 x 4,4 mm), col. Petit, MNHN; Messina,
1 ej. (9,0 x 3,8 mm), col. A. Peñas. Estrecho de Gibraltar: Ceuta, Benzú, 20 c. (8,4 x 3,7 - 9,1 x 3,9
mm); Cádiz, 1 c. (9,4 x 3,9), col. Gavala en col. Azpeitia, MNCN. Marruecos: Asilah, Oued el Helou,
13., col. SG, MNHN; Mohammedia, 2 c. (8,5 x 3,7 - 8,6 x 3,8 mm), col. SG, MNHN.
Descripción: Concha de hasta 9,1 mm,
sólida, con unas seis vueltas de espira
poco convexas y una sutura moderada-
mente marcada.
Protoconcha de 820 um de diámetro
máximo (núcleo: 450-500 um, primera
media vuelta: 625 um). El núcleo es liso,
y al final de la segunda media vuelta
aparece una escultura de costillas
axiales algo sigmoideas y opistoclinas;
no se aprecia escultura espiral.
Teleoconcha con ornamentación
formada por cordones espirales, el doble
de anchos que sus interespacios, y costi-
llas axiales de poco relieve que forman
nódulos cuadrangulares aplanados, a
modo de adoquines, al cruzarse con los
cordones. En la primera vuelta aparecen
dos cordones espirales; un tercer cordón
aparece en la tercera vuelta por desdo-
blamiento del cordón subsutural; este
cordón adapical se vuelve a ensanchar y
se desdobla de nuevo en la última
vuelta. En la última vuelta, hay unos 15
cordones, de los cuales 4 continúan los
de la penúltima vuelta, los 5 medios son
A3
Iberus, 28 (1), 2010
Figuras 52-54. Chauvetia candidissima (Philippi, 1836). 52, 53, ejemplar de Benzú, Ceuta (8,6
mm); 54, ejemplar de Messina, Sicilia, col. A. Peñas (9,0 mm).
Figures 52-54. Chauvetia candidissima (Philippi, 1836). 52, 53, specimen from Benzú (8.6 mm); 54,
specimen from Messina, Sicilia, col. A. Peñas (9.0 mm).
de tamaño equivalente y los que cubren
el canal sifonal son algo más delgados y
dejan de ser granulosos. La terminación
de las costillas no se manifiesta apenas
sobre la sutura. En la penúltima, así
como en la última vuelta, se aprecian 22-
24 costillas axiales algo prosoclinas. La
última vuelta alcanza en torno al 60% de
la altura total, mientras que la abertura
ocupa en torno al 42%.
Exterior del labio engrosado en los
ejemplares adultos con los cordones
continuados. En el interior del labio se
observan, en los ejemplares adultos,
hasta 6-7 dentículos alargados hacia el
interior de la abertura.
El color de la concha es blanco. El
animal no se ha observado.
Distribución: Sicilia, Malta, Argelia
(MICALI, 1999) y estrecho de Gibraltar;
las citas de Senegal corresponden a
otras especies (véase OLIVER Y ROLÁN,
2008).
Notas: Chauvetia tenuisculpta (Daut-
zenberg, 1890) es un endemismo de
44
Senegal, que se distingue por tener
unas costillas axiales muy fuertes desde
la primera media vuelta de la protocon-
cha. Las citas de dicha especie para el
estrecho de Gibraltar (MICALI, 1999;
OLIVER Y ROLÁN, 2008, con dudas) nos
parecen dudosas y tal vez estén basadas
en ejemplares de C. candididissima del
Estrecho, como los que describimos
aquí. Estos ejemplares del Estrecho se
parecen más, por su forma general, a C.
tenuisculpta, pero tienen la mayor parte
de la protoconcha lisa, como los ejem-
plares de C. candidissima de Sicilia. Sin
embargo, los ejemplares de Sicilia que
hemos visto se diferencian por tener las
vueltas mucho más convexas y, sobre
todo, los cordones mucho más marca-
dos en el exterior del labio. Es posible
que la forma del Estrecho sea una
especie distinta, pero haría falta un
seguimiento de su variabilidad a lo
largo de las costas norteafricanas, si es
que allí existe, antes de llegar a una
conclusión.
GOFAS Y OLIVER: Las especies de Chauvetia en el área ibero-marroquí
Chauvetia lefebvrii (Maravigna, 1840) (Figs. 55-58, 65-68)
Buccinum lefebvrii Maravigna, 1840. Rev. Zool. Soc. Cuvier.: 325. [Localidad tipo: Aci Trezza,
Sicilia].
Chauvetia lefebvrei auct. [Ortografía subsiguiente incorrecta, iniciada por Locard, 1892: 72].
Fusus granulatus Calcara, 1839, non Nesaea granulata Risso, 1826. Ric. Malac.: 16, fig. 10. [Localidad
tipo: Palermo, Sicilia].
Buccinum folineae, sensu Philippi, 1844, non Murex folineae Delle Chiaje, 1828. En. Moll. Sic. vol. 2:
189, lám. 27, fig. 10.
Lachesis areolata Tiberi, 1868. J. Conchy]l.: 73. [Localidad tipo: Sicilia].
? Folinia retifera var. glomulus Monterosato, 1889. J. Conchyl., 37: 117. [Localidad tipo: Casablanca].
? Folinia retifera var. labrosa Monterosato, 1889. J. Conchyl., 37: 117. [Localidad tipo: Casablanca].
Chauvetia pellisphocae sensu Nordsieck, 1976, non Pleurotoma pellisphocae Reeve, 1845.
Material estudiado: Sicilia: Capo dei Mulini, 10 c. (5,6 x 2,7 — 6,4 x 2,8 mm), MNHN,; Isola Lachea,
1 c. (6,0 x 3,7 mm), MNHN. Argelia: Argel, 9 c. (5,8 x 2,8 — 6,6 x 3,1 mm), col. Hidalgo, MNCN;
Argel, 5 c. (5,7 x 2,8-—7,4 x 3,3 mm), col. Azpeitia, MNCN; Argel, 3 c. (7,2 x 3,2 -7,5 x 3,2 mm), col.
Pallary, MNHN,; Dellys, 4 c. (6,8 x 3,1 mm), col. Pallary, como L. folineae det. Dautzenberg, MNHN.
Baleares: Ibiza (Punta Galera), 2 protoconchas, MNCN; Mallorca (Punta Foradada), 2 c. (deterio-
radas) + 2 fragmentos + 2 protoconchas, MNCN; Mar de Alborán y estrecho de Gibraltar: La Herra-
dura (Granada), 50 ej., MNCN; Mijas (Málaga), 4 ej., MNCN; Algeciras, 30 c., MNCN; Getares
(Cádiz), 2 c. (6,5 x 3,1 mm -7,8 x 3,5 mm), col. SG, MNHN; Tarifa, 4 c. (8,5 x 3,6 — 9,0 x 3,9 mm),
col. Gavala en col. Azpeitia, MNCN,; Barbate, 1 c. (6,8 x 3,1 mm), col. SG; Ceuta, Benzú, 0-4 m, 3
ej. (9,0 x 3,8 mm - 10,0 x 4,0 mmy ejemplar dibujado); Ceuta, Benzú, 24 c. (8,9 x 3,7 - 10,3 x 4,3 mm),
col. SG, MNHN. Forma de color castaño uniforme: Marruecos: Asilah, 3 c. (6,8 x 3,2 — 7,0 x 3,5 mm),
col. SG, MNHN; Temara, 33 ej. (5,8 x 2,8 - 8,5 x 3,7 mm) + 15j., col. SG, MNHN; Temara, 18 c. (8,5
x 3,8 mm) MNCN; Mohammedia, 2 c. (8,9 x 4,0 mm), col. SG, MNHN; Casablanca, 7 c. (arrojadas
a la playa), col. Rigotard 1917, MNHN,; El Jadida, 52 ej. (8,6 x 3,7 - 10,1 x 4,4 mm) + 12j., col. SG,
MNHN, Essaouira, 60 ej. (8,0 x 3,7 - 9,4 x 4,0 mm) + 29j., col. SG, MNHN,; Essaouira 6 c. + 1j. (8,2
x 3,7 mm), MNCN. Estrecho de Gibraltar: Tarifa, 34 c. (7,9 x 33 — 11,1 x 4,3 mm) + 4j. + 3 proto-
conchas, col. Gavala en col. Azpeitia, MNCN.
Descripción: Concha de hasta 11,1
mm, sólida, con unas seis vueltas de
espira poco convexas, con la sutura
moderadamente marcada.
Protoconcha de 900 um de diámetro
máximo (núcleo: 500 um, primera media
vuelta: 750 um). El núcleo es liso o casi
liso; desde la primera media vuelta se
pueden apreciar unos cordoncillos espi-
rales muy débiles, de tamaño irregular,
alternando gruesos y finos. En la
segunda media vuelta aparece una escul-
tura de costillas axiales algo sigmoideas y
opistoclinas, de anchura similar a los
espacios que las separan, sobre las cuales
se continúan los cordoncillos.
Teleoconcha con ornamentación
formada por cordones espirales, el doble
de anchos que sus interespacios, y costi-
llas axiales de poco relieve que forman
nódulos cuadrangulares aplanados, a
modo de adoquines, al cruzarse con los
cordones. La terminación de las costillas
repercute un poco sobre la sutura, que
es algo canaliculada. En la primera
vuelta aparecen tres cordones espirales;
un cuarto cordón aparece en la tercera
vuelta por desdoblamiento del cordón
subsutural; este cordón adapical se
vuelve a ensanchar y se desdobla de
nuevo en la última vuelta. En la última
vuelta, hay 17-18 cordones, de los cuales
4 continúan los de la penúltima vuelta,
los 5 medios son de tamaño equivalente
y los que cubren el canal sifonal decre-
cen marcadamente en grosor. En la
penúltima vuelta, así como en la última,
se aprecian 20-24 costillas axiales algo
prosoclinas. La última vuelta alcanza el
56-58% de la altura total, mientras que
la abertura ocupa en torno al 40%.
Exterior del labio muy engrosado en
los ejemplares adultos, particularmente
en su parte adapical; cordones muy ate-
nuados en su parte externa. En el inte-
rior del labio se observan 4-5 dentículos,
45
Iberus, 28 (1), 2010
Figuras 55, 56. Chauvetia lefeburii (Maravigna, 1840), con patrón de color con nódulos oscuros,
habitual en el Mediterráneo y en el estrecho de Gibraltar, Benzú, Ceuta (9,2 mm). Figuras 57, 58.
Chauvetia cf. lefebvriz, forma de color castaño uniforme propia de la costa atlántica de Marruecos,
Temara (8,2 mm).
Figures 55, 56. Chauvetia lefebvrii (Maravigna, 1840), the colour pattern with dark nodes, usual in the
Mediterranean and Strait of Gibraltar, Benzú (9.2 mm). Figures 57, 58. Chauvetia cf. lefebvrii, with pat-
tern of continuousdark bands over the cords, as found on the Atlantic coast of Morocco, Temara (8.2 mm).
de los cuales el adapical es más pronun-
ciado, y el abapical constituye el borde
externo del canal sifonal.
El color de la concha es blanco
rosáceo con puntos de color castaño
rojizo en la intersección de los cordones
espirales con las costillas axiales; estos
puntos son más pálidos en las primeras
vueltas y al principio tienden a confluir
a lo largo de los cordones. En la última
vuelta, se dibujan bandas castañas sobre
el borde externo del labio, en continui-
dad con las filas espirales de puntos.
El animal es blanquecino con puntos
de color blanco lácteo.
Distribución: Conocida en el Medite-
rráneo desde la costa oriental de Sicilia
hasta el mar de Alborán, y el estrecho de
Gibraltar (forma con nódulos oscuros) y
en la costa atlántica de Marruecos
(Chauvetia cf. lefebvrii, forma de color
castaño uniforme). No hemos encon-
trado esta especie en el abundante mate-
46
rial del Algarve, y la cita para la ría de
Vigo (ROLÁN, 1983) corresponde en
nuestra opinión a C. retifera.
Notas: La sinonimia de esta especie
fue establecida ¡por MONTEROSATO
(1884) teniendo en mano la colección de
Tiberi. De ello se entiende que TIBERI
(1868), al considerar Buccinum lefeborii
una sinonimia de Lachesis mamillata,
volvió a describir la verdadera C. lefebv-
rii como especie nueva (L. areolata).
La descripción anterior se aplica a
poblaciones del Mediterráneo y de las
costas del Estrecho. En la costa atlántica
de Marruecos se encuentra una forma
de color castaño uniforme que MICALI
(1999) considera una variedad de C. reti-
fera. En nuestra opinión, la protoconcha,
el perfil de la espira, la configuración de
los tubérculos a modo de adoquines
desde las primeras vueltas y los cuatro
cordones situados sobre la abertura en
la última vuelta se ajustan más a C.
GOFAS Y OLIVER: Las especies de Chauvetía en el área ibero-marroquí
Figuras 59-62. Chauvetia retifera (Brugnone, 1880). 59, 60: ejemplar de Benzú, Ceuta (9,4 mm);
61, 62: ejemplar de Sagres, 3-15 m (9,5 mm).
Figures 59-62. Chauvetia retifera (Brugnone, 1880). 59, 60: specimen from Benzú (9.4 mm); 61, 62:
specimen from Sagres, 3-15 m (9.5 mm).
lefeburii que a C. retifera. A esta forma de distinta, alguno de los nombres pro-
coloración se le puede aplicar, si se puestos por MONTEROSATO (1889) como
demostrase que se trata de una especie variedades de C. retifera.
Chauvetia retifera (Brugnone 1880) (Figs. 59-62, 70-72, 104)
Lachesis retifera Brugnone, 1880. Bull. Soc. Malac. Ital.: 111, lám. 1, fig. 6. [Localidad tipo: Giannet-
tello, cerca de Caltanisetta, Sicilia; fósil plio-pleistocénico].
Lachesis dolioliformis Monterosato, 1884. Nom. Gen. Spec.; 137. [Nombre introducido en la sinoni-
mia de Chauvetia retifera y nunca usado como válido; por lo tanto, no disponible en nomencla-
tura].
Folinta retifera var. lirifera Monterosato, 1889. J. Conchyl.: 117.
Donovania (Adansonia) pellisphocae sensu Pallary, 1920, non Pleurotoma pellisphocae Reeve, 1845.
Chauvetia elongata Nordsieck y Talavera, 1979. [Localidad tipo: sur de Gran Canaria, probable-
mente un error, según Oliver y Rolán, 2009: 152].
Material estudiado: Galicia: Bayona: 1 c., (7,8 x 3,1 mm), MNCN. Portugal: Peniche, 1 c. (arrojada
a la playa, 10,5 x 4,2 mm), col. SG, MNHN,; Sagres, Punta da Baleeira, 17-23 m, 31 ej. (8,4 x 3,7 —
10,0 x 3,7 mm) + 6 j.; Sagres, Ponta dos Caminhos, 23-33 m, 4 c. (9,0 x 3,7 - 11,0 x 3,7 mm); Sagres,
3-15 m, 1 c. (9,7 x 3,8 mm); Sagres, Pontal dos Corvos, 2 c. (8,7 x 3,8 — 9,3 x 3,7 mm); Sagres, Praia
do Martinhal, bajamar, 1 c. (10,3 x 3,7 mm); Salema, pesca de arrastre, 1 ej. (dibujado); Tavira, Pedra
do Barril, 13 c. (8,6 x 3,5 — 10,6 x 3,7 mm); Tavira, Cabanas, 3 c. (10,5 x 3,8 mm). Mar de Alborán y
estrecho de Gibraltar: cala Higuera (Almería), 1 c. (sin protoconcha), col. Cobos, MNCN,; Benal-
mádena (Málaga), 1 c. (10,4 x 4,0 mm), col. SG; Tarifa, isla de Tarifa, 2 ej. (10,0 x 3,8 mm) + 1j., col.
SG; Tarifa, Torre de la Peña, 1 c., col. SG, MNHN; Tarifa, 20 c. (8,9 x 3,7 — 12,5 x 4,4 mm), col. Gavala
47
Iberus, 28 (1), 2010
en col. Azpeitia, MNCN; Barbate, 2 c. (8,8 x 3,5 mm - 9,8 x 3,8 mm), col. SG; Cádiz, La Cortadura,
2 c. (8,0 x 3,4 mm), col. SG, MNHN,; Cádiz, 1 c. (8,4 x 3,4 mm), col. Gavala en col. Azpeitia, MNCN;
Ceuta, Punta Almina, 25-40 m, 4 c. (8,6 x 3,5 - 8,6 x 3,6 mm); Ceuta, Benzú, 0-4 m, 2 ej. (9,6 x 3,6
mm -— 10,3 x 3,8 mm; ejemplar dibujado); Ceuta, Benzú, 46 c. (8,5 x 3,5 - 11,2 x 3,8 mm), col. SG,
MNHN. Marruecos: Tánger, muelle Este del puerto, 14 ej. + c. (9,0 x 34 — 11,5 x 44 mm) + 3j.,
MNHN, Asilah, 3 c. (10,0 x 3,7 mm), MNHN; Temara, 5 ej. (9,2 x 3,5 — 9,9 x 3,8 mm) +5 ]., col. SG,
MNHN; Temara, 5 c. (8,1 x 3,5 — 9,9 x 3,7 mm) + 2j., MNCN; Casablanca 9 c. (arrojadas a la playa),
col. Rigotard 1917, MNHN,; Essaouira, 7 ej. (8,7 x 3,4 — 9,7 x 3,5 mm) + 2j., col. SG, MNHN,; Essa-
ouira, 1j., MNCN.
Descripción: Concha de hasta 12,5
mm, sólida, con unas seis vueltas de
espira altas, poco convexas, con la
sutura moderadamente marcada.
Protoconcha de 850 um de diámetro
máximo (núcleo: 450 um, primera media
vuelta: 650 um). El núcleo es liso o casi
liso; desde la primera media vuelta
aparece una escultura de costillas
axiales muy fuertes, de anchura similar
a los espacios que las separan, sin
ningún rastro de escultura espiral.
Teleoconcha con ornamentación
formada por cordones espirales, el doble
de anchos que sus interespacios, y costi-
llas axiales de muy poco relieve que
forman nódulos cuadrangulares aplana-
dos, a modo de adoquines, al cruzarse
con los cordones. La terminación de las
costillas se manifiesta un poco sobre la
sutura, que es algo canaliculada. En la
primera vuelta aparecen tres cordones
espirales; en la tercera vuelta aparece un
cuarto cordón por desdoblamiento del
cordón subsutural; este cordón adapical
se vuelve a ensanchar y se desdobla de
nuevo en la penúltima vuelta. En la
última vuelta, hay 17-18 cordones, de
los cuales 5 continúan los de la penúl-
tima vuelta, los 4 medios son de grosor
similar, y los que cubren el canal sifonal
decrecen en grosor. En la penúltima
vuelta, así como en la última, se apre-
cian 20-24 costillas axiales algo prosocli-
nas. La última vuelta alcanza el 56-58%
de la altura total, mientras que la aber-
tura ocupa algo menos del 40%.
Exterior del labio muy engrosado en
los ejemplares adultos, particularmente
en su parte adapical; cordones muy ate-
nuados en su parte externa. En el inte-
rior del labio se observan 4-5 dentículos,
de los cuales el adapical es más pronun-
ciado y está bastante separado del
48
extremo de la abertura, y el abapical
constituye el borde externo del canal
sifonal.
El color de la protoconcha es blanco,
el de la teleoconcha es blanco rosáceo o
amarillento, más pálido en las primeras
vueltas, con bandas de color castaño
rojizo que cubren completamente los
cordones espirales sin interrumpirse en
los intervalos y se continúan sobre el
borde externo del labio.
El animal es blanquecino, con
algunos puntos de color blanco lácteo
en la parte alta del cuerpo.
Distribución: Mediterráneo, sola-
mente en el mar de Alborán; Atlántico,
desde Galicia hasta Marruecos. No se ha
encontrado en Canarias en el extenso
material examinado por Oliver y Rolán
(2009).
Notas: Esta especie fue citada por
PALLARY (1902, 1920) con el nombre
erróneo de Chauvetia pellisphocae (Reeve,
1845) pero, según Maes (1983), este
nombre específico corresponde a una
especie del Caribe, perteneciente al
género Crassispira (superfamilia Conoi-
dea) y superficialmente parecida. Chau-
vetia retifera se parece mucho a C-. lefebv-
rit y coexiste con ella en gran parte de su
área de distribución. Las dos especies
tienen en común una concha gruesa con
vueltas poco convexas, el tamaño relati-
vamente grande de la protoconcha, el
color blanquecino del animal, y la exis-
tencia de dentículos fuertes en la aber-
tura. Chauvetia retifera se distingue, sin
embargo, por tener un perfil más alto,
por el dentículo adapical del labio más
apartado de lo alto de la abertura y por
la protoconcha que carece de microes-
cultura espiral y tiene fuertes costillas
axiales desde la primera media vuelta.
En este último aspecto, se parece a la
GOFAS Y OLIVER: Las especies de Chauvetía en el área ibero-marroquí
Figuras 63-72. Protoconchas en vista lateral y apical. 63, 64: Chauvetia candidissima, Benzú,
Ceuta; 65: Chauvetia lefebvrii, forma con nódulos oscuros, Cádiz; 66, 67: Chauvetia lefebvriz,
forma con nódulos oscuros, La Herradura, Granada. 68, 69: Chauvetia cf. lefebvrii, forma con
color uniforme, Temara. 70-72: Chauvetia retifera, La Herradura, Granada.
Figures 63-72. Protoconchs in lateral and apical views. 63, 64: Chauvetia candidissima, Benzú; 65:
Chauvetia lefebvrii, form with dark nodes, Cádiz; 66, 67: same, La Herradura. 68, 69: Chauvetia cf.
lefebvrii, with uniform colour pattern, Temara. 70-72: Chauvetia retifera, La Herradura.
especie senegalesa C. tenuisculpta, pero
ésta difiere por su color completamente
blanco. El color con bandas castañas
continuas en los cordones espirales es
otro carácter distintivo en las costas 1bé-
ricas, pero en el litoral marroquí existe
este mismo patrón de color también en
formas que asignamos a C. cf. lefebvrii,
manteniéndose las diferencias citadas en
la protoconcha y el perfil de la concha.
49
Iberus, 28 (1), 2010
Chauvetia dentifera spec. nov. (Figs. 73-76, 85-88, 105)
Material tipo: Holotipo [ej., 6,9 x 3,2 mm], MNHN 22872, y 10 paratipos (5 ej. MNHN 226873, 5 ej.
MNCN 15.05/53587), todos de la localidad tipo.
Material estudiado: Mar de Alborán y estrecho de Gibraltar: Mijas Costa (Málaga), 1 c. + 1j., col.
A. Peñas; Sotogrande (Cádiz), 1 ej. (8,0 x 3,5 mm), col. SG, MNHN,; Barbate, 1 c. j., col. SG; Cádiz,
10c.+1j. (7,1 x3,1-—7,8 x 3,9 mm), col. Azpeitia, MANCN; M dig, 1 c. (5,5 x 2,8 mm), col. SG, MNHN;
Ceuta, La Almadraba, 1 c.j.; Ceuta, Punta Almina, 25-40 m, 32 ej. y c. (6,7 x 3,2 — 7,8 x 3,5 mm) y
18 j.; Ceuta, puerto, 1 c. (11,0 x 319 mm); Ceuta, Benzú, 16 c. (5,6 x 2,7 — 6,3 x 3,0 mm), col. SG,
MNHN. Portugal: Cascais, B /O “Faial” P3 (38 24,1" N, 09% 14,1! W, 47-50 m), 5 c. (6,0 x 3,0-7,0 x
3,3 mm), col. Péres, Gautier, Vacelet, 5-8-1957, MNHN,; Sines, 1 c. (arrojada a la playa) (7,2 x 3,0
mm), col. Locard, MNHN,; Sagres, Ponta da Baleeira, 17-23 m, 148 ej. (6,5 x 3,1 -7,8 x 3,4 mm) + 28
j.; Sagres, Baia da Baleeira, 3-15 m, 7 ej. (7,3 x 3,2 - 8,3 x 3,5 mm) + 1j.; Sagres, Ponta dos Caminhos,
20 c. (7,3 x 3,3 - 8,2 x 3,4 mm); Sagres, Pontal dos Corvos, 16 ej. + 2j. (6,8 x 3,2 - 8,0 x 3,0 mm);
Tavira, Pedra do Barril, 23 ej. (6,4 x 3-7,7 x 3,3 mm) + 4j.; Tavira, Cabanas, 1 ej. (7,8 x 3,3 mm) +
2 j. Marruecos: Asilah, 1 c.j., col. SG, MNHN; Rabat, “Vanneau” sta. 37, 33 59 N, 07” 50” W, 155
m, 6 c. (5,5 x 2,8 — 6,2 x 2,9 mm) + 3j., MNHN,; Safi, 10 km sur ciudad, 3 c. (8,0 x 3,4 mm), col. J. de
Lepiney, MNHN. Sáhara: 22” 35' N, 16” 58' W, 1c;23*05' N, 16” 25” W, 2 c. Mauritania: Cabo Blanco,
80 m, 1 c. (fotografía en Oliver y Rolán, 2009: fig. 24).
Localidad tipo: Punta Almina, Ceuta (35* 54,1" N — 05? 16,5" W, 25-40 m).
Etimología: el nombre específico alude al dentículo labial propio de esta especie.
Descripción: Concha fusiforme algo
pupoide, sólida, con 5!*/2-6 vueltas de
espira y hasta 7,8 mm. Las primeras
vueltas son regularmente convexas, con
una sutura bastante marcada, la penúl-
tima y la última tienen el máximo de
convexidad cerca de la sutura y la parte
media más aplanada.
Protoconcha con algo más de una
vuelta, diámetro máximo de 650-700 um
(núcleo: 380-400 um, primera media
vuelta: 530-550 um). El núcleo tiene cor-
doncillos espirales muy tenues, casi ina-
preciables con microscopía óptica, desi-
guales entre sí, con interespacios de
aspecto poroso a mucho aumento; a
partir de la segunda media vuelta
aparece una escultura de costillas
axiales algo sigmoideas y opistoclinas,
de anchura similar a los espacios que las
separan. En los espacios se puede apre-
ciar la continuación de los cordoncillos
espirales muy débiles y de tamaño irre-
gular, alternando gruesos y finos.
Teleoconcha con ornamentación
formada por cordones espirales y costi-
llas axiales. En la primera vuelta apare-
cen cuatro cordones espirales bien marca-
dos, los dos adapicales algo más estre-
chos; a partir de la tercera vuelta, el
cordón subsutural se desdobla, mientras
que los cordones abapicales se ensanchan
50
y aplanan, siendo en esta parte mucho
más anchos que los interespacios. En la
última vuelta los cordones de la parte
media están tan aplanados que llegan a
ser indistintos; la parte abapical está
separada del resto de la vuelta por un
ligero surco y lleva 15-16 cordones algo
más patentes, decreciendo algo en
tamaño al acercarse al canal sifonal. En la
penúltima vuelta se aprecian 11-12 costi-
llas axiales, y en la parte final de la última
vuelta las costillas se van atenuando.
La última vuelta alcanza el 60% de la
altura total, mientras que la abertura
ocupa en torno al 40%
Abertura oval, con un canal sifonal
muy corto y ancho. Labio engrosado en
los ejemplares adultos, particularmente
en su parte adapical; el lado externo
forma una variz suave, no delimitada
del resto de la vuelta. En el interior del
labio de los ejemplares completamente
adultos, se observan 4-5 dentículos poco
marcados, alargados y situados muy
adentro de la abertura; sin embargo, el
interior de la abertura de los ejemplares
subadultos es frecuentemente liso. La
parte abapical del labio forma en su
borde un dentículo saliente, situado en
la terminación del surco externo de la
última vuelta (Fig. 76) y apuntando en
la dirección de crecimiento del borde
GOFAS Y OLIVER: Las especies de Chauvetía en el área 1ibero-marroquí
Figura 73-76. Chauvetia dentifera spec. nov. 73, 74, holotipo de Punta Almina, Ceuta, 32-40 m
(6,9 mm); 75, 76, ejemplar de Sotogrande (8,0 mm).
Figure 73-76. Chauvetia dentifera spec. nov. 73, 74, holotype from Punta Almina, Ceuta, 32-40 m
(6.9 mm); 75, 76, specimen from Sotogrande (8.0 mm).
El color de la concha es castaño en la
mitad adapical de las vueltas y en la
parte abapical de la última vuelta, con
una zona amarillenta en la mitad abapi-
cal de las vueltas de espira, continuada
como una banda central en la última
vuelta.
El animal es blanquecino con puntos
de color blanco lácteo.
Distribución: Mediterráneo, sola-
mente en la costa occidental de Málaga;
Atlántico, desde el sur de Portugal hasta
el cabo Blanco.
Notas: Esta especie ha sido confun-
dida (MICALI, 1999) con Chauvetia crassior
(Odhner, 1932), descrita de la plataforma
insular de Gran Canaria. El holotipo de
C. crassior (véase OLIVER Y ROLÁN 2009:
116-117, fig. 19-20), conservado en el
SMNH, es subadulto y el carácter del
dentículo labial puede no estar expresado
por esta razón; sin embargo, muestra una
diferencia considerable en la configura-
ción de las costillas axiales, que son
menos numerosas, más altas y más sepa-
radas en lo que sería la penúltima vuelta.
Los ejemplares adultos de Chauvetia cras-
sior de Gran Canaria, ilustrados en
OLIVER Y ROLÁN (2009, figs. 21-23) no
llegan a desarrollar un dentículo labial
aunque el labio esté muy engrosado.
El dentículo labial observado en esta
especie es un rasgo que se conoce entre
numerosas especies de Caenogastro-
poda (VERMEI, 2001), la mayoría de
ellas, así como los casos más extremos,
pertenecientes a la familia Muricidae. Se
considera este rasgo como convergente
en distintos linajes y relacionado con el
comportamiento predador. Se señala
aquí por primera vez en el género Chau-
vetia, aunque de momento no se conoce
el uso que el animal pueda hacer de este
dentículo.
ON
Iberus, 28 (1), 2010
Chauvetia taeniata spec. nov. (Figs. 77-80, 89-90)
Material tipo: Holotipo [ej., 7,9 x 3,6 mm], MNHN 22870, y 10 paratipos (5 ej. MNHN 22871, 5 ej.
MNCN 15.05/53586), todos de la localidad tipo.
Material estudiado: Estrecho de Gibraltar: Cádiz, 10 c. + 23. (6,9 x 3,4- 9,0 x 3,7 mm), col. Gavala
en col. Azpeitia, MNCN; Ceuta, La Almadraba, 3 c. (8,5 x 3,9 mm); Ceuta, Punta Almina, 25-40 m,
24 ej. +c. (7,2 x 3,4 -7,9 x 3,6 mm; ejemplar dibujado); Ceuta, Benzú, 5 c. (6,5 x 3,3 -7,6 x 3,3 mm).
Tánger, 1 c. (7,8 x 3,3 mm), vol. SG, MNHN. Portugal: Sagres, Ponta da Baleeira, 17-23 m, 20 ej. (7,2
x 3,2 —7,8 x 3,6 mm) + 9j.; Sagres, Ponta dos Caminhos, 6 c. + 1j. (7,6 x 3,5-8,1 x 3,5 mm); Sagres,
Pontal dos Corvos, 5 ej. (8,2 x 3,6 - 8,5 x 3,7 mm); entre Faro y Sagres, redes de pesca, 1j.; Tavira,
Pedra do Barril, 21 ej. (7,0 x 3,2 - 7,8 x 3,6 mm) + 12j.
Localidad tipo: Punta Almina, Ceuta (35 54.1” N — 05? 16.5” W, 25-40 m).
Etimología: Del latín taenia, venda o cinta, aludiendo a la forma aplanada de los cordones.
Descripción: Concha fusiforme,
sólida, con 5!/2-6 vueltas y hasta 8,5
mm. Las primeras vueltas son poco pero
regularmente convexas, con una sutura
bastante marcada, y crecen regular-
mente en diámetro sin formar una
espira cirtoconoide.
Protoconcha con algo más de una
vuelta, diámetro máximo de 750-800 um
(núcleo: 400-420 um, primera media
vuelta: 550-600 um). Desde el mismo
núcleo aparece una escultura de cordon-
cillos aplanados y anchos, muy desigua-
les entre sí, mucho más anchos que los
interespacios, en el fondo de los cuales
se aprecian diminutas laminillas trans-
versales irregulares; hay 15-18 cordonci-
llos al final de la primera media vuelta.
Al final de la segunda media vuelta se
añade una escultura de costillas axiales
estrechas algo sigmoideas y opistocli-
nas, de anchura progresivamente mayor
hasta el principio de la teleoconcha; en
esta parte, los cordoncillos espirales se
vuelven más altos y pasan a ser más
estrechos que los interespacios.
Teleoconcha con ornamentación for-
mada por cordones espirales y costillas
axiales. En la primera vuelta de la teleo-
concha aparecen cuatro cordones espira-
les bien marcados, aumentando algo en
tamaño hacia el ápice; a partir de la ter-
cera vuelta, el cordón subsutural se des-
dobla, de modo que hay cinco cordones
en la penúltima vuelta. En la última
vuelta, los cordones de la parte media se
ensanchan y aplanan, siendo en esta par-
te mucho más anchos que los interespa-
cios; en la parte abapical, los cordones
pasan a ser más fuertes y más estrechos
2
que los interespacios, decreciendo algo
en tamaño al acercarse al canal sifonal;
hay en total 25-30 cordones en la última
vuelta. En la penúltima vuelta se apre-
cian 9-10 costillas axiales muy marcadas,
y en la parte final de la última vuelta las
costillas se van atenuando.
La última vuelta alcanza el 60% de la
altura total, mientras que la abertura
ocupa algo más del 40%
Abertura oval, engrosada en los
ejemplares adultos, con canal sifonal
relativamente corto y ancho. Labio
grueso en los ejemplares adultos, parti-
cularmente en su parte adapical; el lado
externo forma una variz suave, no deli-
mitada del resto de la vuelta, sobre la
cual los cordones se atenúan o casi desa-
parecen. En el interior del labio de los
ejemplares completamente adultos, se
observan 9-10 dentículos poco marca-
dos, alargados y situados muy adentro
de la abertura; sin embargo, el interior
de la abertura de los ejemplares suba-
dultos es frecuentemente liso.
Protoconcha castaña muy clara; tele-
oconcha castaña en la parte adapical de
las vueltas, con una zona blanca en los
dos tercios abapicales de las vueltas de
espira, continuada como una banda
ancha central en la última vuelta.
El animal es blanquecino con puntos
de color blanco lácteo.
Distribución: Suroeste de Portugal y
estrecho de Gibraltar.
Notas: Esta especie tiene una proto-
concha muy parecida a la de C. proce-
rula, aunque algo más grande. La teleo-
concha, sin embargo, es muy distinta y
se caracteriza por la tendencia de los
GOFAS Y OLIVER: Las especies de Chauvetia en el área ibero-marroquí
Figuras 77-80. Chauvetia taeniata spec. nov. 77-79: holotipo de Punta Almina 32-40 m (7,9 mm);
80: ejemplar de Cádiz (8 mm).
Figures 77-80. Chauvetia taeniata spec. nov. 77-79: holotype from Punta Almina 32-40 m (7.9 mm);
80: specimen from Cádiz (8 mm).
cordones a hacerse aplanados y anchos,
hasta casi desaparecer en la última
vuelta. El patrón de color es parecido al
de C. dentifera spec. nov. y C. decorata y
los estadios juveniles podrían confun-
dirse, pero los juveniles de C. dentifera
son proporcionalmente más anchos y
toscos, reflejando el perfil de espira algo
cirtoconoide de ésta, y la protoconcha
de C. dentifera tiene cordoncillos mucho
más tenues, y el doble en número. Chau-
vetia decorata tiene una protoconcha
marcadamente más pequeña y las tres
especies se separan con claridad en las
localidades, como Punta Almina, donde
ocurren juntas.
Chauvetia decorata Monterosato, 1889 (Figs. 81-84, 91-94)
Chauvetia decorata Monterosato, 1889. J. Conchy]l.: 117. [Localidad tipo: Casablanca, Marruecos].
Material estudiado: Estrecho de Gibraltar: Barbate, 1 c.j., col. SG; Cádiz 1 c. (7,2 x 3,1 mm), col.
Gavala en col. Azpeitia, MNCN; Ceuta, La Almadraba, 1 c. (6,5 x 2,9); Ceuta, Punta Almina, 25-40
m, 14 ej. y c. (5,9 x 3,2 — 6,8 x 3,3 mm); Ceuta, Benzú, 1 c. (6,6 x 3,2 mm). Marruecos: Safi, 10 km.
sur ciudad, 2 c. (7,2 x 3,0 mm).
Descripción: Concha fusiforme algo
pupoide, sólida, con 5-5 */2 vueltas de
espira y hasta 7,2 mm, y vueltas regular-
mente convexas con una sutura bastante
marcada.
Protoconcha con aproximadamente
una vuelta, diámetro máximo de 600-620
um (núcleo: 330-350 um, primera media
vuelta: 480-500 um). El núcleo es promi-
nente y tiene cordoncillos espirales bas-
tante marcados, aplanados, algo más
anchos que los interespacios, cuyo fondo
forma una fila de diminutos puntos exca-
vados. Al final de la segunda media
vuelta aparece una escultura de costillas
axiales algo sigmoideas y opistoclinas, de
anchura similar a los espacios que las
separan. En los espacios se pueden apre-
ciar unos cordoncillos espirales que con-
tinúan los del núcleo.
Teleoconcha con ornamentación
formada por cordones espirales y costi-
9
Iberus, 28 (1), 2010
Figuras 81-84. Chauvetia decorata Monterosato, 1889. 81-83, ejemplar de Punta Almina, Ceuta,
32-40 m (6,0 mm); 84, ejemplar de Cádiz (7,2 mm).
Figures 81-84. Chauvetia decorata Monterosato, 1889. 81-83, specimen from Punta Almina 32-40 m
(6.0 mm); 84, specimen from Cádiz (7.2 mm).
llas axiales. En la primera vuelta de la
teleoconcha aparecen cuatro cordones
espirales, los dos abapicales bien marca-
dos, los adapicales (subsuturales) menos
prominentes o casi fusionados; a partir
de la tercera vuelta, los cordones subsu-
turales se afirman, de modo que hay
cuatro cordones casi iguales en la penúl-
tima vuelta; esta escultura persiste en la
última vuelta, que presenta en total 15-
16 cordones que decrecen algo en
tamaño al acercarse al canal sifonal. En
la penúltima vuelta se aprecian 11-13
costillas axiales, que persisten en la
última vuelta; a su paso por las costillas
axiales, los cordones forman tubérculos
redondeados, a modo de perlas.
La última vuelta alcanza el 65% de la
altura total, mientras que la abertura
ocupa en torno al 45%.
Abertura oval, engrosada en los
ejemplares adultos, con un canal sifonal
muy corto y ancho. Labio grueso en los
ejemplares adultos, particularmente en
su parte adapical; el lado externo forma
una variz distinta, aunque no delimi-
tada del resto de la vuelta, sobre la cual
los cordones están muy atenuados, y
son casi inapreciables. En el interior del
labio de los ejemplares completamente
54
adultos se observan 4-5 dentículos poco
marcados, alargados y situados muy
adentro de la abertura; sin embargo, el
interior de la abertura de los ejemplares
subadultos es frecuentemente liso. El
borde del labio en vista lateral forma
una curvatura suave, sin proyección ni
dentículo.
Protoconcha castaña clara; teleocon-
cha castaña en la mitad adapical de las
vueltas y en la parte abapical de la
última vuelta, con una zona blanca en la
mitad abapical de las vueltas de espira,
continuada como una banda en la mitad
de la última vuelta.
Animal desconocido.
Distribución: Costa atlántica de
Marruecos y estrecho de Gibraltar.
Notas: Esta especie es muy parecida
a C. taentata spec. nov., pero su espira es
más ancha y los cordones se mantienen
en toda la superficie y no tienden a apla-
narse en las últimas vueltas. Los juveni-
les se distinguen bien, en las poblacio-
nes simpátricas de Ceuta, por tener la
protoconcha más pequeña y las vueltas
no tan altas en proporción, regular-
mente convexas (no aplanadas con un
ángulo en la periferia) y con los cordo-
nes adapicales pequeños, en lugar de
GOFAS Y OLIVER: Las especies de Chauvetia en el área ibero-marroquí
Figuras 85-96. Protoconchas en vista lateral y apical, todas a la misma escala. 85-88: Chauvetia
dentifera, Punta Almina, Ceuta, 32-40 m; 89-90: Chauvetia taeniata, Punta Almina, Ceuta, 32-40
m; 91-94: Chauvetia decorata, Punta Almina, Ceuta, 32-40 m; 95-96: Chauvetia balgimae, frente a
Rabat, 355 m.
Figures 85-96. Protoconchs in lateral and apical views, all to scale. 85-88: Chauvetia dentifera, Punta
Almina, Ceuta, 32-40 m; 89-90: Chauvetia taeniata, Punta Almina, Ceuta, 32-40 m; 91-94: Chauvetia deco-
rata, Punta Almina, Ceuta, 32-40 m; 95-96: Chauvetia balgimae, off Rabat, 355 m.
99
Iberus, 28 (1), 2010
Figuras 97-105. Esquemas de los patrones de coloración de los animales vivos. 97: Chauvetia
mamillata, Sagres, 5 m; 98: C. mamillata, Punta Almina, Ceuta, 32-40 m; 99: C. brunnea, Sagres,
5 m; 100: C. brunnea, Punta Almina, Ceuta, 32-40 m; 101: C. procerula con color de concha uni-
forme, Sagres, 5 m; 102: C. procerula con banda blanca, Punta del Saudiño; 103: C. recondita,
Punta Almina, Ceuta, a 32-40 m; 104: C. retifera juvenil, frente a Salema, Algarve; 105: C. denti-
fera, Sagres, 20 m.
Figures 97-105. Sketches of colour patterns in the living animals. 97: Chauvetia mamillata, Sagres, 5
m; 98: C. mamillata, Punta Almina, 32-40 m; 99: C. brunnea, Punta Almina, 32-40 m; 100: C.
brunnea, Sagres, 5 m; 101: C. procerula with uniform shell colour, Sagres, 5 m; 102: C. procerula
with white band, Punta del Saudiño; 103: C. recondita, Punta Almina, 32-40 m; 104: juvenile C.
retifera, off Salema, Algarve; 105: C. dentifera, Sagres, 20 m.
cuatro cordones casi iguales desde el
principio. Entre las cuatro especies que
presentan el patrón de color con banda
blanca, ésta nos parece la que mejor se
ajusta a la breve diagnosis proporcio-
nada por MONTEROSATO (1889), sobre
9/0
todo porque la incluye en el género
Chauvetia (en su criterio, junto con C.
granulata sensu Tiberi, 1868 y con C.
recondita), y no en Donovania (junto con
C. procerula, descrita en el mismo artí-
culo).
GOFAS Y OLIVER: Las especies de Chauvetía en el área ibero-marroquí
Figuras 106-108. Chauvetia balgimae spec. nov., holotipo de BALGIM DR82, frente a Rabat, 355
m (6,3 mm).
Figures 106-108. Chauvetia balgimae spec. nov., holotype from BALGIM DR82, off Rabat, 355 m
(6.3 mm).
Chauvetia balgimae spec. nov. (Figs. 95-96, 106-108)
Material tipo: Holotipo [ej., 6,3 x 2,9 mm], MNHN 22874 y 9 paratipos (4 ej. MNHN 22875, 5 ej.
MNCN 15.05/53587), todos de la localidad tipo.
Material estudiado: El material tipo y Balgim Sta. DR81 (33? 46' N, 08? 30” W), 309 m, 1 ej.
Localidad tipo: Frente a Rabat, Marruecos (33? 45' N — 08* 32” W, 355 m), Balgim St. DR82.
Etimología: Del nombre de la campaña Balgim (Bentos del AtLántico, Glbraltar y Mediterráneo),
en la cual la especie fue recolectada.
Descripción: Concha fusiforme, no
muy sólida, con 4! /2-5 vueltas de espira
y hasta 6,8 mm, y vueltas muy conve-
xas, con una sutura bastante marcada.
Protoconcha con aproximadamente
una vuelta, diámetro máximo de 850-
900 um (núcleo: 500 um, primera media
vuelta: 700 um). El núcleo es redonde-
ado y tiene cordoncillos espirales muy
tenues, casi inapreciables con microsco-
pía óptica, desiguales entre sí, con inte-
respacios relativamente lisos; desde la
primera media vuelta aparece una
escultura de numerosas costillas axiales
algo sigmoideas y opistoclinas, de
anchura similar a los espacios que las
separan. En los espacios se puede apre-
ciar la continuación de los cordoncillos
espirales, que están atenuados en la
parte más saliente de las costillas.
Teleoconcha con ornamentación
formada por cordones espirales y costi-
llas axiales. En la primera vuelta de la
teleoconcha aparecen cuatro cordones
espirales, de los que uno (subsutural)
está algo apartado de la sutura; en este
intervalo surge un quinto cordón a partir
de la segunda vuelta. Esta escultura per-
siste en la última vuelta, que presenta en
total unos 20 cordones que decrecen mar-
cadamente en grosor al acercarse el canal
sifonal. Las costillas axiales son algo sig-
34
Iberus, 28 (1), 2010
moideas, ligeramente más estrechas que
los interespacios; en la penúltima vuelta
se aprecian 17-19 costillas axiales, que se
atenúan algo al final de la última vuelta.
A su paso por las costillas axiales, los cor-
dones forman pequeños tubérculos
redondeados.
La última vuelta alcanza el 62% de la
altura total, mientras que la abertura
ocupa en torno al 42%
Abertura ovalada, con un canal
sifonal largo para el género, y ancho.
Labio en los ejemplares adultos con el
lado externo formando una variz estre-
cha y elevada, situada algo separada del
borde, que es fino y cortante; los cordo-
nes están muy atenuados, y son casi ina-
CONCLUSIONES
En este trabajo consideramos doce
especies válidas del género Chauvetia en
el litoral ibero-marroquí, situando en el
estrecho de Gibraltar y en el sur de la
Península Ibérica la máxima diversidad
específica del género en Europa. En
algunos puntos del Estrecho, como
Punta Almina o Benzú, cerca de Ceuta,
se han podido recolectar hasta ocho
especies en la misma muestra. En otras
regiones del Mediterráneo, contando
incluso con especies que no se encuen-
tran en el área aquí estudiada, pueden
encontrarse hasta siete especies en el
entorno de Sicilia, que es el otro “punto
caliente” de la riqueza especifica en el
Mediterráneo. El máximo absoluto de
riqueza específica, sin embargo, sigue
centrado en la península del cabo Verde,
en Senegal, donde Oliver y Rolán (2008)
han encontrado 14 especies, seguido de
cerca por la plataforma sahariana, con
una docena de especies (Oliver y Rolán,
2009). Luego, más al sur, el género es
muy escaso en África occidental, exis-
tiendo alguna representación hasta
Costa de Marfil, pero con un número de
especies muy bajo.
El género Chauvetia no está represen-
tado en el Atlántico occidental, lo que es
explicable considerando el tipo de desa-
rrollo sin fase planctónica que se deduce
de la protoconcha de todas las especies
58
preciables sobre la variz. En el interior
del labio de los ejemplares completa-
mente adultos no se aprecian dentículos.
El borde del labio en vista lateral es sig-
moideo.
Color de la concha y del animal
completamente blanco.
Notas: La protoconcha de esta
especie se parece mucho a la de Chauve-
tia edentula Oliver y Rolán, 2009, descrita
de una profundidad similar en el banco
sahariano y en la isla de Gran Canaria.
Sin embargo, la teleoconcha es marcada-
mente diferente, siendo C. edentula
mucho más sólida, con la última vuelta
proporcionalmente más compacta y la
abertura más pequeña.
estudiadas del género. Tampoco está
representado en las islas Azores,
poniendo así de manifiesto que las dis-
tancias transoceánicas son infranqueables
por sus representantes. No siempre las
especies con desarrollo directo intracap-
sular son incapaces de colonizar sitios
remotos, mediante, por ejemplo, la flota-
ción de cápsulas ovígeras, pero parece
evidente que, en el caso de Chauvetia, la
capacidad de dispersión es escasa.
Esta capacidad limitada de disper-
sión hace probablemente que las espe-
cies de Chauvetia sean propensas a dife-
renciarse en poblaciones locales con
escaso intercambio genético con otras
poblaciones de la especie. Quizás ésta
sea una razón para que existan tantos
problemas taxonómicos sin resolver. En
este trabajo hemos puesto de manifiesto
algunos de ellos y es obvio que aún
faltan datos a lo largo de las costas nor-
teafricanas y en la cuenca oriental para
que se pueda llegar a una revisión taxo-
nómica completa del género. También es
de esperar que los caracteres de secuen-
cias moleculares aporten nuevos ele-
mentos decisivos cuando se conozcan
para estas especies.
Las especies litorales incluidas en
este estudio están todas claramente vin-
culadas a fondos rocosos o, a lo sumo, a
fondos colindantes de cascajo biógeno.
GOFAS Y OLIVER: Las especies de Chauvetia en el área ibero-marroquí
Quizá por ello no se ha encontrado
ningún ejemplar de Chauvetia en el
amplio muestreo realizado en las
lagunas del Algarve, en los alrededores
de Faro y Olháo, a pesar de la presencia
de extensas praderas de fanerógamas
ricas en especies y de un esfuerzo de
muestreo equivalente al desplegado en
la zona de Sagres. Por la misma razón,
los tramos costeros con litoral arenoso y
lagunas, como los del suroeste ibérico o
del noroeste marroquí, podrían actuar
como barreras que convierten en islas
los tramos de costa rocosa intercalados y
propician la diferenciación de las pobla-
ciones.
AGRADECIMIENTOS
La campaña Ceuta 1986 fue el fruto
de un esfuerzo conjunto del MNHN y
de la Universidad de Sevilla (José Carlos
BIBLIOGRAFÍA
ARNAUD P. 1978. Révision des taxa malacolo-
gliques méditerranéens introduits par An-
toine Risso. Annales du Muséum d'Histoire
Naturelle de Nice, 5: 101-150.
BUCQUOY E., DAUTZENBERG P. Y DOLLFUS G.
1882-1886. Les mollusques marins du Roussil-
lon. Tome ler. Gastropodes. Paris, J. B. Bail-
liere et fils. 570 pp., 66 lám. [pp. 85-135, pl.
11-15, febrero 1883]
CROSSE H. 1885. Nomenclatura generica e
specifica di alcune conchiglie mediterra-
nee, pel Marchese di Monterosato [reseña
bibliográfica]. Journal de Conchyliologie, 33:
139-142.
HERGUETA H., LUQUE A. Y TEMPLADO J. 2002.
On the taxonomy and biology of Chauvetia
mamillata (Risso, 1826) (Gastropoda: Bucci-
nidae) in south East Spain. Bollettino Mala-
cologico, supplemento 4: 135-146.
HORRO J. Y ROLÁN E. 2004. Las especies de
Chauvetia de Galicia (Mollusca, Muricoidea).
Noticiario SEM, 41: 27-30.
LOCARD A. 1892. Les coquilles marines des cótes
de France. J. B. Bailliere et fils, Paris, 384 pp.
MAgs V.O. 1983. Observations on the syste-
matics and biology of a turrid gastropod as-
semblage in the British Virgin Islands. Bul-
letin of Marine Science, 33 (2): 305-335.
MICALI P. 1999. Note sulle specie di Chauvetia
dell' Atlantico nord-orientale. Bollettino Ma-
lacologico, 34 (5-8): 53-68.
García Gomez), la del Algarve (1988) y
Seamount 1 (1987) fueron dirigidas por
Philippe Bouchet (MNHN), y las cam-
pañas Fauna Ibérica III (1994) y IV
(1996), realizadas en el Proyecto Fauna
Ibérica (DGICYT PB92-0121) fueron diri-
gidas por Ángel Guerra, del Instituto de
Investigaciones Marinas (Consejo Supe-
rior de Investigaciones Científicas).
Las fotografías de microscopio elec-
trónico de barrido fueron realizadas en
su mayoría en los servicios centrales de
apoyo a la investigación de la Universi-
dad de Málaga, con la ayuda de Grego-
rio Martín Caballero; algunas de ellas se
realizaron en el laboratorio de microsco-
pía electrónica del Museo Nacional de
Ciencias Naturales por Laura Tormo y
Marta Furió.
Los autores también agradecen a
Ángel Luque (Universidad Autónoma,
Madrid) una minuciosa revisión del
manuscrito y sugerencias valiosas.
MONTEROSATO T. A. D1 1872. Notizie intorno alle
conchiglie mediterranee. Palermo, Michele
Amenta, 61 pp.
MONTEROSATO T. A. DI 1884. Nomenclatura ge-
nerica e specifica di alcune conchiglie mediterra-
nee. Palermo, Virzi, 152 pp.
MONTEROSATO T. DI 1889. Coquilles marines
Marocaines. Journal de Conchyliologie, 37: 20-
40, 112-121.
NORDsIECK F. 1976. Familia Buccinidae. Il ge-
nere Chauvetia Monterosato, 1884 nei mari
d'Europa. La Conchiglia, 89-90: 3-7.
OLIVER J. D. Y ROLÁN E. 2008. Las especies del
género Chauvetia (Gastropoda, Neogastro-
poda) del área de Dakar, Senegal, Africa oc-
cidental, con la descripción de diez especies
nuevas. Iberus, 26 (2): 133-175.
OLIVER J. D. Y ROLÁN E. 2009. Las especies de
Chauvetia Monterosato, 1884 (Mollusca, Ne-
ogastropoda) de Canarias y el área Oeste
Africana de Mauritania y Sahara. Iberus, 27
(2): 113-154.
PALLARY P. 1902. Liste des mollusques testacés
de la baie de Tanger. Journal de Conchyliolo-
core pUriS9, plsl
PALLARY P. 1920. Exploration scientifique du Ma-
roc organisée par la Société de Géographie de Pa-
ris et continuée par la Société des Sciences Na-
turelles du Maroc. Deuxieme fascicule. Mala-
cologie (1912). Larose, Rabat y Paris, 108 pp.,
1 lám., 1 mapa.
SY
Iberus, 28 (1), 2010
PEÑAS A., ROLÁN E., LUQUE A.A., TEMPLADO J.,
MORENO D., RUBIO F., SALAS C., SIERRA A. Y
GOFAS S. 2006. Moluscos marinos de la isla
de Alborán. Iberus, 24 (1): 23-151
Risso A. 1826. Histoire naturelle des principales pro-
ductions de l'Europe méridionale et particuliere-
ment de celles des environs de Nice et des Alpes
Maritimes, vol. 4. Paris, Levrault, iv + 439
pp., 12 láms.
SCACCHI A. 1836. Catalogus conchyliorum regni
Neapolitani. Neapoli [Napoles], Typis Filiatre-
Sebetii, 18 pp., 1 lám.
60
TIBERI N. 1868. Des testacés de la Méditerranée
qui doivent étre compris dans les genres La-
chesis et Neseea de Risso. Journal de Conchy-
liologie, 16: 68-81, lám. 5.
VERMEEJ G. 2001. Innovation and evolution at
the edge: origins and fates of gastropods
with a labral tooth. Biological Journal of the Lin-
nean Society, 72: 461-508.
WOODWARD S.P. 1899. Some account of the sy-
nonymy and affinities of Donovania minima
(Mont.). Proceedings of the Malacological Society
of London, 3 (3): 235-238.
O Sociedad Española de Malacología Iberus, 28 (1); 61-66, 2010
Record of the largest specimen of neon flying squid
Ommastrephes bartramii (Cephalopoda: Ommastrephidae)
Registro del mayor ejemplar de pota saltadora Ommastrephes bar-
tramii (Cephalopoda: Ommastrephidae)
Ángel GUERRA*, Graham J. PIERCE**, María Begoña SANTOS***, Ángel
E GONZÁLEZ*, Gema HERNÁNDEZ-MILIAN***, Carmela POR-
TEIRO*** and Baltasar PATIÑO***
Recibido el 26-XI1-2009. Aceptado el 23-IV-2010
ABSTRACT
We report a record of the largest known specimen of Ommastrephes bartramii. lt was an
almost mature female, with dorsal mantle length (ML) of 1020 mm and weighing around
35 kg, caught by a Spanish fishing vessel in October 2007 on a surface long-line in the
Eastern Tropical Pacific. Growth increments on a statolith indicate an age of 492-512
days. The stomach was full and contained beaks of ommastrephid squids and of a small
pelagic octopus [Japetella spp.), and remains of mackerel [possibly bait from the long-line)
and unidentified fish.
RESUMEN
En este trabajo se presenta información sobre el mayor ejemplar de Ommastrephes bar-
tramii descrito hasta la actualidad. Se trata de una hembra casi madura, cuya longitud
dorsal del manto es de 1020 mm y con un peso total de aproximadamente 35 kg, captu-
rada en octubre de 2007 por un pesquero español utilizando palangre de superficie en el
Pacífico Tropical Este. Los incrementos de crecimiento observados en un estatolito indican
una edad comprendida entre 492 y 512 días. El estómago estaba lleno y contenía picos
de potas [omastréfidos) y de un pulpo pelágico pequeño [Japatella spp.), así como restos
de caballas (posiblemente cebo del palangre) y de otros peces que no pudieron ser identi-
ficados.
INTRODUCTION
The neon flying squid Ommastrephes
bartramii (LeSueur, 1821) is distributed
worldwide in subtropical and temperate
oceanic waters (ROPER, SWEENEY AND
NAUEN, 1984; NeEsis, 1987; DUNNING,
1998). It has supported major jig and
surface driftnet fisheries in the North
Pacific since about 1974, and its life
history in this area is well known
(BOWER AND ICHIL, 2005; IcHií, MAHAPA-
TRA, OKAMURA, AND OKADA 2006). It
occurs in the South Pacific where SST
* Instituto de Investigaciones Marinas (CSIC), Vigo, Spain. E-mail: angelguerraCiim.csic.es
** Centro Oceanográfico de Vigo, Instituto Español de Oceanografía, P.O. Box 1552, 36200 Vigo, Spain and
Institute of Biological and Environmental Sciences, Zoology Building, University of Aberdeen, Tillydrone
Avenue, AB24 2TX Aberdeen, U.K.
*** Centro Oceanográfico de Vigo, Instituto Español de Oceanografía, P.O. Box 1552, 36200 Vigo, Spain.
61
Iberus, 28 (1), 2010
Figure 1. Worldwide distribution of Ommastrephes bartramii (AquaMaps, GBIF OBIS) and
capture location (O) of this record.
Figura 1. Distribución mundial de Ommastrephes bartramii (Aqua Maps, GBIF OBIS) y localiza-
ción del lugar de captura del ejemplar (O).
ranges from - 12” to 26” C and is rarely
caught in cooler waters. Adjacent to the
continental slope of western South
America, O. bartrami is replaced in
waters warmer than 15” C by the jumbo
squid Dosidicus gigas (YATSU AND
YAMASHIRO, 1999; ZUEV, NIGMATULLIN,
CHESALIN, AND NESIS, 2002). The Sub-
tropical Convergence (SC) is the south-
ern boundary of its distribution in the
South Pacific, generally at about 40-502
S. However, the SC zone is highly vari-
able from year to year and shows signif-
icant seasonal latitudinal shifts, occur-
ring as far south as 52” S (DUNNING,
1998).
Although this species was identified
as a potential fishery resource in the late
1970s, there is still no commercial
exploitation in the Southern hemisphere
(DUNNING, 1998). NIGMATULLIN,
SHCHETINNIKOV AND SHUKHGALTER
(2009) sampled 60 specimens of this
species, to study the diet and parasites,
by jigging in the south-eastern Pacific in
the early 19805. The animals ranged
from 16 to 39 cm mantle length (ML).
62
The largest specimen recorded to date
was a female of 800 mm mantle length
weighing 20-25 kg caught in Argen-
tinean waters (DUNNING, 1998). In this
paper we describe a new record of a
larger specimen caught in the SE Pacific,
including information on age, maturity
and stomach contents.
MATERIAL AND METHODS
The present specimen was caught by
the Spanish fishing vessel Nuevo Monte
Ventoso, 10/10/07, on a surface long-line
at 21” S, 88” W (FAO area 87, Figure 1). It
was frozen on board and transported to
Vigo (NW Spain). It was defrosted at
room temperature, dissected and mea-
sured (see Figure 2) We sampled
stomach contents, one statolith (the
other was not located), beaks, sucker
rings, mantle and ovary tissue.
The method applied for ageing
involved mounting the statolith on a
microscope slide, using Crystalbond,
with the anterior concave side upper-
GUERRA £7 AL.: Record of the largest specimen of Ommastrephes bartramii
PS
Figure 2. Ommastrephes bartramii, view of the mouth, arms and anterior ventral mantle margin of
the specimen.
Figura 2. Ommastrephes bartramii, vista de la boca, brazos y margen ventral anterior del manto del
ejemplar.
most. The statolith was ground, first on
the anterior surface, then turned over
and ground on the posterior surface.
The statolith was then turned over so
that the anterior surface was uppermost.
This grinding of both surfaces in the
sagittal plane results in the production
of a relatively thin statolith section.
Increments were determined along the
axis of maximum statolith growth with
a NIS Elements D 2.30 image analysis
system interfaced with a Nikon com-
pound microscope (400x magnification).
Counts were obtained semi-automati-
cally: putative increments were detected
automatically by computer software
from an enhanced image but final iden-
tification of increments was carried out
manually. Increments were not clearly
identifiable near the outer margin of the
ground surface, and the number of
increments missed in this area was esti-
mated by extrapolation from the adja-
cent area (GONZÁLEZ, DAWE, BECK AND
PÉREZ, 2000).
Stomach contents (consisting of
semi-digested flesh and hard remains)
were washed through a sieve (mesh size
0.335 mm) and all identifiable prey
remains (e.g. fish otoliths, bones and
cephalopod beaks) extracted and trans-
ferred to 75% alcohol. Fish hard parts
were later dried. Beaks, otoliths and
bones were identified to the lowest pos-
sible taxon using guides (e.g. CLARKE
1986, HARKÓNEN 1986; BoscH1, Fis-
CHBACH AND IORIO, 1992; SMALE,
WATSON AND HECHT, 1995; WArT, PIERCE
AND BOYLE, 1997; TUSET, LOMBARTE, AND
Assis, 2008) and reference material held
by the authors. Original prey size was
calculated from standard measurements
(lower rostral length for squid beaks)
using published regressions (CLARKE,
63
Iberus, 28 (1), 2010
Table I. Main measurements (mm for linear measurements, g for weights).
Tabla I. Principales medidas del ejemplar (en mm las morfométricas y en g los pesos).
Linear dimensions mm
Dorsal montle lengih 1020
Ventral mantle length 970
Ventral mantle width 315
Fin length 500
Fin width OS
Arm R] length 580
Arm R3 length 630
Left tentacle 1020
1986). In the case of the fish remains, the
otoliths found were fragmented. Of the
intact fish bones identifiable to family
we were able to use the dentary length
to estimate the approximate size, using
an unpublished regression.
RESULTS AND DISCUSSION
The specimen was a female, with
dorsal mantle length (ML) of 1020 mm
and weighing around 35 kg. It was
almost mature, with mature oocytes
passing through the oocyte chamber,
and was mated (see Table 1). Repeat
readings of growth increments on the
one statolith located indicate an age of
492-512 days.
Age data from the North Pacific
suggest a 1-year life cycle whereas this
specimen was already 16-17 months old.
However, similar discrepancies between
reported age and the known seasonality
of the life cycle are known from other
squids, e.g. Loligo spp. (see GONZÁLEZ,
OTERO, GUERRA AND PIERCE, In Press).
BOWER AND IcHIH1 (2005) reported two
seasonal cohorts in the North Pacific. In
the loliginid squid Loligo forbesi, BOYLE,
PIERCE AND HASTIE (1995) proposed that
individual growth rate determines
whether an animal becomes a winter or
summer spawner, and individuals from
summer and winter breeding seasons
might thus be of mixed age. Thus an
apparently annual spawning and
recruitment cycle is not necessarily
64
Weights J
Total weight Approx. 35000
Nidamental gland weight 250 (1 out of 2)
Oviduct gland weight 150 (1 out of 2)
Ovary weight 500
Digestive gland weight 950
Stomach contents weight 950
inconsistent with some animals living
for up to 2 years. CHEN AND CHIU (2003)
recorded maximum mantle lengths of
527 mm for Ommastrephes bartramil in
the North Pacific between September
and December, which would be consis-
tent with the present specimen
approaching spawning readiness in
October.
The stomach was full (containing
9508 of food remains, a mixture of semi-
digested flesh and hard prey remains).
Table II summarises the information on
prey found in the stomachs, including
reconstructed lengths and weights.
Remains included beaks of ommas-
trephid squids (as well as fragments of
gladius and cephalopod flesh), verte-
brae, dentaries and a broken otolith
from a fish of the family Scombridae,
probably a species of mackerel and
remains of unidentified fish (broken
otoliths, bones, a post-temporal, and
numerous dermal scutes). An intact
specimen of alfonsino (Beryx sp., proba-
bly B. decadactylus) was recovered from
the mantle cavity of the squid (it had
not been eaten).
It was not possible to identify the
ommastrephid beaks to species since
beaks from species in this family are
very similar but it is likely that they
belong to the same species, since canni-
balism is known to be quite common in
cephalopods (IBÁÑEZ AND KEYL, 2010).
The other identified remains of
cephalopods belonged to the genus
Japetella. With the exception of Japetella,
GUERRA ET AL.: Record of the largest specimen of Ommastrephes bartramii
Table II. Prey species found in the stomachs of the specimen of Ommastrephes bartramií taken by a
long-liner in the south-eastern Pacific. For all prey species, number of beaks/other remains, estima-
ted number of individuals (N) and estimated prey length (mm) and weight (g) are indicated.
Tabla 11. Especies de presas encontradas en el estómago de Ommastrephes bartramii capturado con un
palangre en el Pacífico sureste. Para todas las especies se indica el número de picoslotros restos, el número
de individuos estimados (N) y una estimación de la longitud de la presa (mm) y su peso (2).
Cephalopod prey Importance
Family Species Remains N Length (mm) Weight (g)
Ommastrephidae Unidentified 3 lower + 2 upper beaks, gladius, flesh 3 259-301 536-728
Bolitaenidae Japatella sp. 1 lower + 1 upper beaks | d á
Fish prey
Family Species
Scombridae Scomber spp. Bones +1 otolith / 359-385 393-493
Unidentified Unidentified broken otoliths, bones, dermal scutes
which is a small pelagic octopus (speci-
mens of Japetella recorded from pygmy
sperm whale stomachs in Hawaii aver-
aged 8 g in body weight, West et al.
2009), the estimated size of the prey
taken by the squid ranged from 259 to
385 mm in length and 390 to 720 g. The
occurrence of mackerel in the diet is at
first sight surprising since mackerel is a
shelf species, but it may have been used
as bait on the long-line (although
remains of more than 1 individual
mackerel were found in the stomach
and bait fish are normally spaced out
along a long-line).
There is little information on the diet
of the species, NIGMATULLIN, SHCHE-
TINNIKOV AND SHUKHGALTER (2009)
reported on the stomach contents of 60
specimens of O. bartramil taken by
hand-jigging in the southeast Pacific.
These squid had taken a wide variety of
prey, mainly myctophid fish (Symbo-
lophorus, Myctophum and Hygophun)
and cephalopods (Onychoteuthidae and
Enoploteuthidae). The authors also
noted the presence in the stomachs of
beaks of the family Ommastrephidae
(including some remains of O. bar-
tramii). Myctophid fish and squid of the
families Onychoteuthidae and Enoplo-
teuthidae were also found to be the
main prey in a sample of 315 O. bar-
tramii from off Hawaii (PARRY, 2006). No
myctophid remains were found in the
stomach of the present specimen.
The main preys of this species in the
Northwest Pacific were myctophids.
Secondary important prey items
included onychoteuthid and gonatid
squids. The study was done using drift-
nets offshore but Engraulis japonicus and
Carangidae (as well as other species that
could be found in shelf waters) were
reported in the diet in low numbers.
Chnages in feeding habits of the neon
flying squid were found in relation to
their seasonal south-north migrations
and diel vertical displacements (WATAN-
ABE, KUBODERA, ICHIl AND KAWAHARA,
2004).
ACKNOWLEDGEMENTS
We would like to thank the skipper
and crew of the Nuevo Monte Ventoso
and Rafael Bañón Díaz who identified
the fish found inside the squid mantle.
G.J. Pierce was supported by the
ANIMATE project (MEXC-CT-2006-
042337).
Ó5
Iberus, 28 (1), 2010
BIBLIOGRAPHY
BoscH1 E., FISCHBACH C. AND JORIO M. 1992.
Catálogo ilustrado de los crustáceos estom-
atópodos y decápodos marinos de Argentina.
Frente Marítimo, 10: 56-57.
BOWER J.R. AND IcHn T. 2005. The red flying
squid (Ommastrephes bartramii): A review of
recent research and the fishery in Japan. Fishe-
ries Research 76, 39-55.
BOYLE P.R., PIERCE G.J. AND HASTIE L.C. 1995.
Flexible reproductive strategies in the
squid Loligo forbesi. Marine Biology, 121:
501-508.
CHEN C.-S. AND CHIU T.S. 2003. Variations of
life history parameters in two geographical
groups of the neon flying squid, Ommas-
trephes bartramii, from the North Pacific. Fish-
eries Research, 63: 349-366.
CLARKE M.R. 1986. A handbook for the identifica-
tion of Cephalopod beaks. Clarendon Press. Ox-
ford. 273 p.
DUNNING M. 1998. An overview of the fish-
eries biology and resource potential of Om-
mastrephes bartramii (Cephalopoda: Ommas-
trephidae) in the Southern Hemisphere. In
Okutani, Y. (Ed.): Contributed papers to In-
ternational Symposium on Large Pelagic
Squids. Japan Marine Fishery Resources Re-
search Center, Tokyo: 65-76.
GONZÁLEZ A.F., DAWE E.G., BECK P.C. AND
PÉREZ J.A.A. 2000. Bias associated with sta-
tolith-based methodologies for ageing squid:
a comparative study on Illex ¡llecebrosus
(Cephalopoda: Ommastrephidae). Journal of
Experimental Marine Biology and Ecology, 244:
161-180.
GONZÁLEZ A.F, OTERO J., GUERRA A., PIERCE G.
J. (in press) Age, growth and mortality of
Loligo vulgaris wild planktonic paralarvae in
the Ría de Vigo (NE Atlantic Ocean). ICES
Journal of Marine Science.
HARKÓNEN T. 1986. Guide to the otoliths of bony
fishes of the Northeast Atlantic. Daubin ApsS.
Sweden. 256 p.
IBÁÑEZ CH.M. AND KEYL F. 2010. Cannibalism
in cephalopods. Reviews in Fish Biology and
Fisheries, 20: 123-136.
IcHhu T., MAHAPATRA K., OKAMURA H. AND
OKADA Y. 2006. Stock assessment of the au-
tumn cohort of neon flying squid (Ommas-
trephes bartramii) in the North Pacific based
on past large-scale high seas drifnet fishery
data. Fisheries Research, 78: 286-297.
Nesis K.N. 1987. Cephalopods of the world.
Squids, cuttlefishes, octopuse, and allies.
T.F.H. Publications, Neptune City. 351 p.
66
NIGMATULLIN C.M., SHCHETINNIKOV A.S. AND
SHUKHGALTER O.A. 2009. On feeding and
helminth fauna of neon flying squid Om-
mastrephes bartramil (Lesueur, 1821)
(Cephalopoda: Ommastrephidae) in the
southeastern Pacific. Revista de Biología Ma-
rina y Oceanografía, 44: 227-235.
PARRY M. 2006. Feeding behaviour of two om-
mastrephid squids Ommastrephes bartramii
and Sthenoteuthis oualaniensis off Hawaii. Ma-
rine Ecology Progress Series, 318: 229-235.
ROPER C.F.E., SWEENEY M.J. AND NAUEN C.E.
1984. FAO species catalogue. Cephalopods of the
world. An annotated and illustrated catalogue of
species of interest to fisheries. FAO Fisheries
Synopsis, 3 (125): 277 p.
SMALE M.J., WATSON G. AND HECHT T. 1995.
Otolith atlas of Southern African marine fishes
(Ichthyological monographs). J.L.B. Smith In-
stitute of Ichthyology, 1, 253 pp.
TuseT V.M., LOMBARTE A. AND ASsIS C.A. 2008.
Otolith atlas for the western Mediterranean,
north and central eastern Atlantic. Scientia
Marina, 72: 1-203.
WATANABE H., KUBODERA T., IcHt T. AND
KAWAHARA $. 2004. Feeding habits of neon
flying squid Ommastrephes bartramii in the
transitional region of the central North Pa-
cific. Marine Ecology Progress Series, 266: 173-
184.
WATT J., PIERCE G.J. AND BOYLE P.R. 1997. A
guide to the identification of North Sea fish
using premaxillae and vertebrae. Co-opera-
tive Research Report No 220, International
Council for the Exploration of the Sea, 231 p.
WesT K.L., WALKER W.A., BAIRD R.W., WHITE
W., LEVINE G., BROWN E. AND SCHOFIELD D.
2009. Diet of pygmy sperm whales (Kogia
breviceps) in the Hawaiian Archipelago. Ma-
rine Mammal Science, DOI: 10.1111 /3.1748-
7692.2009.00295.x
Y ATSU A. AND YAMASHIRO C. 1999. Report of the
Kaiyo Maru Cruise for study on the resources of
tivo ommastrephid squids, Dosidicus gigas and
Onmmastrephes bartrami, in the Pacific Ocean,
during September 11 - December 24, 1997. Fish-
eries Agency of Japan, 206 p.
ZUEV G.V., NIGMATULLIN CH.M., CHESALIN
M.V. AND NEsIs K.N. 2002. Main results of
long-term worldwide studies on tropical nek-
tonic oceanic squid genus Sthenoteuthis: an
overview of the soviet investigations. Bulle-
tin of Marine Science, 71: 1019-1060.
O Sociedad Española de Malacología
Iberus, 28 (1): 67-72, 2010
A new species of Candidula (Gastropoda, Hygromiidae)
from central Portugal
Una nueva especie de Candidula (Gastropoda, Hygromiidae) de
Portugal
Geraldine A. HOLYOAK and David T. HOLYOAK*
Recibido el 19-11-2010. Aceptado el 23-IV-2010
ABSTRACT
A new species Candidula coudensis is described from Vale da Couda (Almoster, Leiria), in
central Portugal. lt differs from other species of the genus in combining a large shell with sharp
peripheral keel and coarse radial ribs with a penis bearing a long flagellum. The new species
lives together with Candidula cf. belemensis (Servain, 1880) on rocky limestone slopes.
RESUMEN
Se describe la nueva especie Candidula coudensis del Vale da Couda (Almoster, Leiria),
en la región central de Portugal. Difiere de otras especies del género por presentar una
concha grande con fuerte quilla carenal y gruesas costillas radiales, y un pene provisto de
un largo flagelo. La nueva especie vive junto con Candidula cf. belemensis [Servain,
1880) en pendientes calcáreas rocosas.
INTRODUCTION
During fieldwork in the limestone
hills above Vale da Couda (district of
Leiria, formerly Beira Litoral), central
Portugal on 31st January 2008 an unfami-
liar “helicellid” (Hygromiidae) was
found. Because of its light-coloured,
sharply keeled shell with strong radial
ribs it was initially thought to be Can-
didula setubalensis (L. Pfeiffer, 1850),
known only as an endemic of the Serra
da Arrábida near Setúbal (district of
Setúbal, Portugal). Subsequent studies
TAXONOMIC PART
have revealed that the genital anatomy of
the snail from Vale da Couda is typical of
Candidula in having only a single large
dart sac as in C. setubalensis (GITTEN-
BERGER, 1985) but it differs from that
species in the much longer flagellum on
its penis. Since the shells of C. setubalensis
also differ in several characters from
those of the snail from Vale da Couda the
latter is described here as a new species.
A fuller review of the species of Candidula
in Portugal is in preparation.
Family HYGROMIIDAE Tryon, 1866
Subfamily HYGROMIINAE Tryon, 1866
Tribe Helicellini Ihering, 1909
* Quinta da Cachopa, Barcoila, 6100-014 Cabegudo, Portugal.
67
Iberus, 28 (1), 2010
Genus Candidula Kobelt, 1871
Type species (by absolute tautonymy): Helix candidula Studer, 1818 = Candidula unifasciata (Poiret,
1801).
PROSCHWITZ AND RIPKEN (2001),
BANK, GROH AND RIPKEN (2002) and
FALKNER, BANK AND PROSCHWITZ
(2001).
Remarks: Allocation of the genus
Candidula to the Tribe Helicellini in the
Hygromiidae follows BANK, BOUCHET,
FALKNER, GITTENBERGER, HAUSDORFE,
Candidula coudensis spec. nov. (Figs. 1-7)
Type locality: Vale da Couda, by N348 road SE. of Almoster (district of Leiria, Portugal), 298
NE498099, ca 390 m alt., herb-rich grassland and low shrubs by road.
Type material: Holotype (Figs 1-5; in the BM, reg. no. 20100177) from type-locality collected 12
Dec. 2009, leg. G.A. Holyoak; body in spirit and dry shell kept separately (holotype and several
paratypes kept alive until 16 Jan. 2010).
Paratypes: 4 dry shells (BM, reg. no. 20100178) and 4 in spirit (3 shell and body, 1 body only, BM,
reg. no. 20100179), 57 dry shells, 2 shells containing bodies kept in spirit and 5 bodies in spirit with
dry shells kept separately (Collection ofG.A. Holyoak). Additional paratypes from near type-local-
ity, all in Collection of G.A. Holyoak: 10 shells, 1 body in spirit (used for Figs. 6, 7) and dry shell
kept separately, collected 31 Jan. 2008 (limestone crags and slopes, 295 NE498099); 31 shells, 1 body
in spirit and dry shell kept separately, collected 10 June 2009 (low limestone crags and slopes, 295
NE498099); 44 shells, collected 12 Dec. 2009 (scrub-covered limestone hillside with low walls and
scree, 295 NE497096).
Etymology: The specific epiphet coudensis is an adjective derived from the name of the type-local-
ity at Vale da Couda. The generic name Candidula has been created as a feminine noun, so the ter-
mination of the epiphet coudensis is therefore feminine in agreement.
Description: Adult shell (Figs. 1-3)
dextral, strongly compressed above,
with low convex to low-conical spire of
5/4-5% flattened whorls with shallow
sutures and sharp slightly raised keel at
periphery. Umbilicus */5 - */7 width of
shell, symmetrical, exposing parts of
several whorls of spire internally, open
or slightly overlapped by peristome.
Mouth slightly oblique, oval but some-
what flattened above and below with
prominent keel at periphery, thin peris-
tome and white internal rib. Shell
opaque, pale cream to light brown
(fading to whitish) with very variable
broad to narrow bands of dull brown to
blackish-brown that are variously dis-
tinct, fused, blotched or interrupted,
sometimes almost lacking on underside
of shell. Shell surface not or slightly
glossy, with radial ribs which are pale
on top; on lower whorls ribs become
strong, evenly spaced, with each rib
conspicuously raised and thickened at
the peripheral keel; on underside of
68
shell the ribs reach the umbilicus, within
which they are reduced to rows of papil-
lae; microsculpture of fine spiral parallel
grooves is often present on body whorl,
especially on underside. The protoconch
appears smooth at x30 magnification;
there is no trace of hairs or hair-pits on
the upper whorls.
Exposed parts of body of living
animal (Figs. 4, 5) light to rather dark
grey, with some brown suffusion and
blackish foot fringe. In detail, the skin
tubercles are variably suffused with
brown and outlined in dark grey.
Genital anatomy (Figs. 6, 7); descrip-
tion based on dissection of four individ-
uals; “proximal” and “distal” in the fol-
lowing account refer to the position in
relation to the genital orifice. The right
ommatophore retractor muscle runs
free, ¡i.e. it does not cross between penis
and vagina. Flagellum long (longer than
epiphallus), slender, tapering, curved;
epiphallus slightly shorter than penis;
penial retractor muscle attached to prox-
HOLYOAK AND HOLYOAK: Á new species of Candidula from central Portugal
Figures 1-5. Candidula coudensis spec. nov. holotype, shell 11.6 mm in width (BM reg. no.
20100177). 1-3: adult shell; 4, 5: holotype photographed alive.
Figuras 1-5. Candidula coudensis spec. nov. holotipo, anchura de la concha 11,6 mm (BM n*
20100177). 1-3: concha adulta; 4, 5: holotipo fotografiado en vivo.
imal part of epiphallus; penis thin-
walled, internally with conical verge
(having small simple apical pore)
descending from distal part of penis
(p2) into proximal part of penis (p1).
Free oviduct moderately long. Dart sac
(stylophore) single, moderately large,
muscular, united with wall of vagina for
about three-quarters of its length, enter-
ing proximal part of vagina through
conical papilla. Digitiform glands
(“mucus glands”) two, arising from
vagina just distal to its union with dart-
sac complex, each gland divided near
base into two or three short branches.
Spermatheca (bursa-copulatrix) cylin-
drical-conical, lying on spermoviduct;
spermatheca duct rather short and wide.
Dimensions: holotype 11.6 x 5.0 mm,
90 adult paratypes 8.8-11.4 x 4.7-5.4 mm.
Distribution and habitat: C. coudensis
has been found only in a range less than
one kilometre in total extent, near Vale
da Couda, by the N348 road SE. of
Almoster (district of Leiria), Portugal.
This range overlaps the edges of three
different 10-km squares of the U.T.M.
grid (NE40, NE41 and NE51). Candidula
cf. belemensis lives in the same areas,
and also at several other sites within a 5
km radius on the same limestone hills
where C. coudensis was not found.
Within its restricted range C. coudensis
occurs at ca 380-390 m altitude, over
Mesozoic limestone that is exposed in
crags facing east and north and also as
scattered rocks and in stone walls. The
largest numbers were found living on
12th December 2009, resting above the
ground on herbs, grasses and low
bushes on almost flat, rather open, dis-
turbed ground near the roadside (11
living C. coudensis were found, with at
least 11 living C. cf. belemensis in similar
sites in the same small area). Single C.
coudensis were also found living under
69
Iberus, 28 (1), 2010
go
Figures 6, 7. Candidula coudensis spec. nov. Anatomy of genitalia of a paratype (in collection of
G.A. Holyoak). 6: general view of anatomy of proximal genitalia; 7: view of vagina and dart sac
from other side. Abbreviations, dg: digitiform gland(s); ds: dart sac; e: epiphallus; f: flagellum; go:
genital orifice; pl: proximal part of penis; p2: distal part of penis; r: penial retractor muscle; s:
spermatheca; sd: spermathecal duct; v: vagina.
Figuras 6, 7. Candidula coudensis spec. nov. Anatomía de genitales de un paratipo (en colección de
G.A. Holyoak). Fig. 6 is Vista anatómica general de la parte proximal del tracto genital, Fig. 7 vista de
la vagina y del saco del dardo desde el lado opuesto. Abreviaturas, de: glándula(s) digitiforme(s); ds: saco
del dardo; e: epifalo; f: flagelo; go: orificio genital; pl: parte proxima del pene; p2: parte distal del pene;
r: músculo retractor del pene; s: espermateca; sd: conduto de la espermatecas; v: vagina.
limestone rocks near the sparsely vege-
tated base of the east-facing crags on
31st January 2008 and 10th June 2009.
Remarks: Among Iberian Helicellini
the presence of only a single moderately
large clearly visible dart sac is a distinc-
tive feature of Candidula, although an
externally unnoticeable “accessory sac”
lacking a dart may also be present
alongside it and sometimes also a trace
of an atrophied dart sac within the
opposite wall of the vagina (e.g. GITTEN-
BERGER, 1985; HAUSDORFE, 1988; ALONSO,
IBÁNEZ AND HENRÍQUES, 1996; ScHI-
LEYKO, 2006).
A review of Portuguese species of
Candidula by GITTENBERGER (1993)
7O
recognised six species, largely from shell
characters. Of these, C. intersecta (Poiret,
1801) and C. gigaxii (L. Pfeiffer, 1848)
have wide ranges in western Europe,
whereas the other four are apparently
endemic to Portugal (C. setubalensis
known only from Serra da Arrábida; C.
belemensis known from districts of Faro
(the Algarve) and Setúbal, and possibly
(pers. obs.) northwards to the district of
Leiria; C. olisippensis (Servain, 1880)
known locally from the Algarve north-
wards to the district of Porto (formerly,
Douro Litoral); C. codía (Bourguignat,
1859) known only from the Algarve,
where additional localities were
reported by MENDES SIMOES, 2006).
HOLYOAK AND HOLYOAK: A new species of Candidula from central Portugal
C. coudensis differs from all of these
except C. setubalensis in having a sharply
keeled shell. However, the flagellum in C.
setubalensis is much shorter (less than half
length of epiphallus: GITTENBERGER,
1985) than in C. coudensis (in which it is
longer than epiphallus: Fig. 6). Their
shells also differ, comparisons based on
37 adult or nearly adult shells of C. se-
tubalensis (in Collection of G.A. Holyoak)
revealing that they are on average small-
er (largest shell 9.7 x 4.6 mm), with even
less convex whorls (so spire often lower,
mouth more elliptical, peripheral keel
even sharper), and umbilicus larger (av-
eraging ca 1/5 of shell width) and expos-
ing more of spire internally; the sculpture
and coloration of the shell are similar. All
of the five other species of Candidula ac-
cepted for Portugal by GITTENBERGER
(1993) have depressed-globular shells
with a rounded body whorl. In all five of
these species the sculpture of radial ribs
is weaker than in C. coudensis, although it
is approached by C. codia, which other-
wise differs markedly in its globular shell
with domed spire.
Elsewhere, the genus Candidula has
been reported over a wide range from
Ireland eastwards to southernmost
Sweden and southwards to Fuerteven-
ACKNOWLEDGEMENTS
The authors want to thank T.L.
Blockeel for advice on nomenclature
BIBLIOOGRAPHY
ALONSO M.R., IBÁÑEZ M. AND HENRÍQUES F.C.
1996. Candidula ultima (Mousson, 1872) (Mo-
lIlusca, Pulmonata, Hygromiidae), a nice case
of adaptive convergence. Journal of Concho-
logy, 35: 455-465.
APARICIO M.T. 1982. Observations on the ana-
tomy of some Helicidae from central Spain.
Malacologia, 22 (1-2): 621-626.
BANK R.A., BOUCHET P., FALKNER G., GITTEN-
BERGER E., HAUSDORF B., PROSCHWITZ T. von
AND RIPKEN T.E.J. 2001. Supraspecific clas-
sification of European non-marine Mollusca
(CLECOM Sections I + ID. Heldia, 4 (1-2): 77-
128.
tura (Canary Islands) in the west and
the Balkan Peninsula in the east, with
approximately 23 recognised species
(KERNEY AND CAMERON, 1979; HAUS-
DORE, 1988, 1991; MANGANELLI AND
GiusTI, 1988; PUENTE, 1994; ALONSO,
IBÁNEZ AND HENRÍQUES, 1996). Except
for C. setubalensis, as discussed above,
no other species currently assigned to
the genus has a sharply keeled shell.
However, a relatively long penial flagel-
lum, exceeding one-half of the length of
the epiphallus, has been described for
the Spanish endemic species C. campor-
roblensis (De Fez, 1944) and C. rocandioi
(Ortiz de Zárate, 1950) (APARICIO, 1982).
C. coudensis apparently reaches
reproductive maturity in winter. A
paratype with mature genitalia (Figs 6-
7) was collected on 31st January 2008.
Five of the snails collected on 12th
December 2009 were kept alive indoors
and these laid three clusters of eggs on
16th-18th January 2010. The clusters
were of 36, 64 and 77 eggs respectively,
laid in loosely-adherent rounded-conical
heaps, with a few single eggs scattered
elsewhere in the box. Individual eggs
were spherical, 1.0-1.3 mm in diameter,
more or less translucent, whitish, or
sometimes with a slight yellow tinge.
and the referees for helpful sugges-
tions.
BANK R.A., GROH K. AND RIPKEN T.E.J. 2002. Ca-
talogue and bibliography of the non-marine
Mollusca of Macaronesia. In: Falkner, M.,
Groh, K. and Speight, M.C.D. (Eds), Collec-
tanea Malacologica. Festschrift fiir Gerhard Falk-
ner. Hackenheim: ConchBooks. Pp. 89-235.
FALKNER G., BANK R.A. AND PROSCHWITZ “TT.
VON 2001. Check-list of the non-marine mo-
lluscan species-group taxa of the states of
northern, Atlantic and central Europe (CLE-
COM D). Heldia, 4 (1-2): 1-76.
7
Iberus, 28 (1), 2010
GITTENBERGER E. 1985. The taxonomic status of
Xeroplexa Monterosato, 1892 (Pulmonata:
Helicidae: Helicellinae), a surprise. Iberus, 5:
59-62.
GITTENBERGER E. 1993. Digging in the graveyard
of synonymy, in search of Portuguese species
of Candidula Kobelt, 1871 (Mollusca: Gas-
tropoda Pulmonata: Hygromiidae). Zoolo-
gische Mededelingen, Leiden, 67 (17): 283-293.
HAUSDORF B. 1988. Zur Kenntnis der systema-
tischen Beziehung einiger Taxa der Helice-
llinae Ihering 1909 (Gastropoda: Hygromii-
dae). Archiv fúr Molluskenkunde, 119 (1-3): 9-
37:
HAUSDORF B. 1991. Uber zwei Candidula-Arten
von der súdlichen Balkanhalbinsel (Gastro-
poda: Hygromiidae). Archiv fir Mollusken-
kunde, 120 (4-6): 119-129.
KERNEY M.P. AND CAMERON R.A.D. 1979. Land
snails of Britain and north-west Europe. Har-
perCollins, London.
da
MANGANELLI G. AND GIUSTI F. 1988. Notulae
malacologicae, 38. A new Hygromiidae from
the Italian Apenines and notes on the genus
Cernuella and related taxa (Pulmonata: He-
licoidea). Bollettino Malacologico, 23 (11-12):
327-380 [for 1987].
MENDES SIMOES J.M. 2006. Notas sobre a dis-
tribuicáo geográfica de Candidula codia (Bour-
guignat, 1859) (Gastropoda, Pulmonata: Hy-
gromiidae) em Portugal. Portugala, 7: 3-4.
PUENTE A.I. 1994. Estudio taxonómico y biogeo-
gráfico de la superfamilia Helicoidea Rafinesque,
1815 (Gastropoda: Pulmonata: Stylommatop-
hora) de la Península Ibérica e Islas Baleares.
Doctoral thesis (unpublished). Bilbao, 970
pp-
SCHILEYKO A.A. 2006. Treatise on recent te-
rrestrial pulmonate molluscs, Part 14, Heli-
codontidae, Ciliellidae, Hygromiidae. Rut-
henica, Supplement 2: 1905-2047.
O Sociedad Española de Malacología
Iberus, 28 (19: 73-78, 2010
A new species of Gibbula (Mollusca, Archaegastopoda)
from Namibia
Una nueva especie de Gibbula (Mollusca, Archaegastopoda) de
Namibia
Emilio ROLÁN* and Michael L. ZETTLER**
Recibido el 14-XII-2009. Aceptado el 24-IV-2010
ABSTRACT
A new species is described from Namibian waters and compared with the morphologi-
cally close species from the study area.
RESUMEN
Se describe una nueva especie de Namibia comparándola con las especies morfológica-
mente similares del área de estudio.
INTRODUCTION
The Namibian molluscan fauna is
very far from being well known. Only
few works with information about the
molluscs of this area are known (e.g.
PENRITH AND KINSLEY, 1970a, 1970b).
Usually, it is thought that this fauna is
mostly influenced by that of South
Africa (KILBURN AND RIPPEY, 1982,
STEYN AND Lussi, 1998) due to the pres-
ence of an oceanic current from the
south towards the north that obstructs
the dispersion of the West African
fauna.
MATERIAL AND METHODS
The Leibniz Institute for Baltic Sea
Research from Rostock-Warnemiinde,
Germany, sampled the macrozooben-
thos along the northern Namibian coast
in 2008 with the research vessel “Maria
Sybilla Merian”. Triplicate benthic
samples were taken with a 0.1 m? van
Veen grab at each station. Additional
dredge hauls using a net mesh size of 5
mm) were taken for collection of larger,
mobile or rare species. All samples were
sieved through a 1-mm? screen and
animals were preserved on board in 4%
buffered formaldehyde. Sorting proce-
dures were conducted at the laboratory
with a stereomicroscope with 10-40x
magnification. For more information on
the study area and abiotic characteristics
at the sampling station see ZETTLER,
BOCHERT AND POLLEHNE (2009).
In this material, several samples of a
species with conical form were found;
since it was apparently undescribed,
the purpose of the present paper is to
name it.
Abbreviations
MHNS Museo de Historia Natural de la
Universidad de Santiago de Com-
postela, (coll. E. Rolán),
* Museo de Historia Natural, Campus Universitario Sur, 15782 Santiago de Compostela, Spain.
** Leibniz-Institute for Baltic Sea Research, Seestr. 15, 18119, Rostock, Germany.
AS
Iberus, 28 (1), 2010
IOW Institute for Baltic Sea Research,
Warnemimnde,
MNCN Museo Nacional de Ciencias
Naturales, Madrid,
SYSTEMATICS
WMC collection of Werner Massier,
Swakopmund
ZMB Museum fúr Naturkunde of the
Humboldt University, Berlin,
Family TROCHIDAE Rafinesque, 1815
Subfalily TROCHINAE Rafinesque, 1815
Genus Gibbula Risso, 1826
Gibbula massieri spec. nov. (Figs. 1-14)
Type material: Holotype (Figs. 1-3) in ZMB (Moll. 107743). Paratypes in the following collec-
tions: MNCN (1, n* 15.05/53490, Fig. 5); IOW (3, IOW-NA-0001-3, Figs. 4, 7-9); MHNS (1); WMC
(3, Figs. 6-9).
Other material examined: One specimen was destroyed for radular study; 25 juveniles and some
fragments (I0W).
Type locality: Offshore Namibia south of the River Kunene, 30 m depth, 17.390” S 11.724 E (5-03-
2008). Shell deposits of the brachiopod Discinisca tenuis (Sowerby, 1847).
Etymology: The specific name is after Werner Massier, from Swakopmund, Namibia, for his coop-
eration in the study of the material.
Description: Shell (Figs. 1-9) conical,
solid, with spiral striation and axial
threads. Protoconch (Figs. 10-11) with
about one smooth whorl and a diam-
eter of about 90 um. The beginning of
the teleoconch has 4 spiral cords, sepa-
rated by deep interspaces. The subse-
quent whorls have a straight profile
and a similar number of cords, the last
whorl having between 5 and 6 cords
down to the periphery, which is well
angled. Below it, towards the base,
there are 7-8 cords, clearly separated,
and closer near the umbilical
infundibulum. In the interspaces
between the cords there are numerous
small very close prosocline threads.
Aperture rectangular, columella slightly
prosocline, straight, external border
sharp, slightly undulating as a result of
the endings of the spiral cords. The
colour of the first whorls (corre-
sponding to the juvenile stages) is
brown on the spiral cords and white on
its interspaces; in the subsequent
whorls, axial dark blotches appear,
alternating with white or light colour.
On the base, the cords usually are alter-
nate brown and white or cream, but
this is very irregular.
74
Dimensions: holotype 6.5 mm in
height by 6.1 mm in diameter. The
paratypes are of a similar size.
The animal, examined in specimens
preserved in alcohol, is whitish with iso-
lated dark lines on the head. There are
three evident epipodial tentacles on
each side. Operculum (Fig. 12) rounded,
fine, semitransparent and multispiral,
with a central nucleus.
Radula (Figs. 13, 14) rather typical of
the genus: rachidian tooth with a
reduced shaft, which has only a few
small cusps; the lateral teeth 1-5 are
similar in form, increasing slightly in
size outwards; all of them have a
pointed apex and several lateral cusps
(up to 6), the external one larger. The
marginal ones number about 30 on each
side, the 5-6 more internal ones are
larger and have 1-2 lateral cusps; going
up to the external ones, their size dimin-
ishes while the number of their lateral
cusps increases.
Distribution:
Namibia.
Remarks: The placement of this
species in the genus Gibbula is based on
the relatively small size of the shell, its
conical form, lack of columellar denticle,
Only known from
ROLÁN AND ZETTLER: A new species of Gibbula from Namibia
Figures 1-9. Gibbula massieri spec. nov. 1-3: holotype, 6.5 mm (ZMB); 4-9: paratypes; 4: 5.4 mm
(IOW); 5: 5.5 mm (MNCN); 6: 5.0 mm (WMOC); 7,9: 6.4 mm (1OW); 8: 5.0 mm (IOW).
Figuras 1-9. Gibbula massieri spec. nov. 1-3: holotipo, 6,5 mm (ZMB); 4-9: paratipos; 4: 5,4 mm
(LOW); 5: 5,5 mm (MNCN); 6: 5,0 mm (WMC); 7, 9: 6,4 mm (1I0OW); 8: 5,0 mm (I0W).
Iberus, 28 (1), 2010
Figures 10-14. Gibbula massieri spec. nov. 10-11: protoconch; 12: operculum; 13-14: radula.
Figuras 10-14. Gibbula massieri spec. nov. 10-11: protoconcha; 12: opérculo; 13-14: rádula.
7Ó
ROLÁN AND ZETTLER: A new species of Gzbbula from Namibia
presence of an umbilicus, existence of
three epipodial tentacles at each side of
the body, and radula with a narrow
shaft and reduced cusp in the rachidian
tooth.
Among the South African species of
small size we can separate the new
species from the following;
Cantharidus suarezensis (P. Fischer,
1878) is lighter in colour, the umbilicus
narrower.
Gibbula beckeri Sowerby, 1901, is
more depressed, the whorls convex and
slightly shouldered, the sculpture is
weaker, the colour is also a combination
of dark and light blotches but with a
smaller pattern.
Gibbula zonata (Wood, 1828) is more
depressed, with convex whorls, spiral
cords in low number, and a wider
umbilicus.
Gibbula cicer (Menke in Philippi,
1844) has convex whorls, prominent and
less numerous spiral cords, the umbili-
cus usually closed.
Gibbula fultoni (Sobwerby, 1889),
according to the description in BARNARD
(1963), has a conical form similar to that
of the present new species but it has a
ACKNOWNLEDGEMENTS
We thank Dr. U. Struck (Berlin), Dr.
V. Mohrholz (Rostock) U. Hehl
(Rostock), M. Rómer (Hamburg) and C.
Berg (Rostock) for assistance during
sampling at RV Maria S. Merian. We
wish also to thank Dr. Ralf Bochert and
I. Glockzin (both Rostock) for analysis
BIBLIOGRAPHY
BARNARD R. H. 1963. Contribution to the knowl-
edge of South African Marine Mollusca. Part
IV. Gastropoda: Prosobranchiata: Rhipi-
doglossa, Docoglossa, Tectibranchiata. Poly-
placophora. Solenogastres. Scaphopoda. An-
nals of the South African Museum, 47 (2): 201-
360.
DAUTZENBERG P. 1910. Contribution a la faune
malacologique de l' Afrique occidentale Actes
de la Société Linnénne de Bordeaux, 44: 1-174,
pl. 1-4
completely or almost closed umbilicus.
The shell is also larger.
Among the Angolan species, com-
parison must be made with:
Jujubinus fulgor Gofas, 1991, which
has an apparently similar shell, but is
more solid, smaller, without any umbili-
cus and having a columellar lengthen-
ing on its lower part.
The comparison with species from
other areas:
Gibbula verdensis Rolán and Tem-
plado, 2001 has a similar form and size,
but the colour is usually lighter, the
white blotches are very small and the
umbilicus is reduced to a small furrow.
It is endemic to the Cape Verde islands.
Gibbula joubini Dautzenberg, 1910 is
smaller (about 4.5 mm) the peripheral
border is more rounded, the dark brown
blotches are most frequently opistocline,
the aperture is relatively smaller. This is
an endemism from Senegal which has
not been recorded from other countries.
The species recorded by GOFas,
PINTO AFONSO AND BRANDAO (1985)
from Angola as Gibbula aff. joubini, may
be the species here described or other
similar (material not examined).
of benthic samples in the laboratory. To
Jesús Méndez of the Centro de Apoyo
Científico y Tecnológico a la Investi-
gación (CACTI) of the University of
Vigo for the SEM photographs. And
António A. Monteiro for English correc-
tions to the manuscript.
GOFAS S. 1991. Un nouveau Jujubinus d'An-
gola. Apex, 6 (1): 21-24.
GOFAS S., PINTO AFONSO J. AND BRANDAO M.
[1985]. Conchas e moluscos de Angola. Uni-
versidade Agostinho Neto / Elf Aquitaine
Angola, 144 pp.
KILBURN R. AND RIPPEY E. 1982. Sea Shells of
Southern Africa. Macmillan South Africa, Jo-
hanesburg. 249 pp.
YN
Iberus, 28 (1), 2010
PENRITH M. L. AND KENSLEY B. 1970a. The cons- STEYN D. G. AND Lussi M. 1998. Marine Shells
titution of the intertidal fauna of rocky sho- of South Africa. Ekogilde Publishers, Hartbe-
res of South West Africa. Part I. Lúderitz- espoort. 264 pp.
bucht. Cimbebasia, 1: 191-239. ZETTLER M.L., BOCHERT R. AND POLLEHNE F.
PENRITH M. L. AND KENSLEY B. 1970b. The cons- 2009. Macrozoobenthos diversity in an oxy-
titution of the intertidal fauna of rocky sho- gen minimum zone off northern Namibia.
res of South West Africa. Part II. Rocky Point. Marine Biology, 156: 1949-1961.
Cimbebasia, 1: 241-268.
ROLÁN E. AND TEMPLADO J. 2001. New species
of Trochidae (Mollusca, Gastropoda) from the
Cape Verde Archipelago. Iberus, 19 (2): 41-55.
78
O Sociedad Española de Malacología Iberus, 28 (1):79-89, 2010
New information on the Caribbean Rissoina (Gastropoda,
Rissoidae) of the group R. sagraiana-cancellata with the
description of a new species
Nueva información sobre las Ríssoina del Caribe (Gastropoda,
Rissoidae) del grupo de R. sagraiana-cancellata, con la descripción
de una nueva especie
Emilio ROLÁN* and Raúl FERNÁNDEZ-GARCÉS**
Recibido el 2-X11-2009. Aceptado el 27-IV-2010
ABSTRACT
Five species of the genus Rissoina from Cuba are characterized and illustrated with scan-
ning electron micrographs: Rissoina sagraiana, R. pulchra, R. labrosa, R. redferni and R.
cancellina spec. nov. Rissoina cancellata is here placed in synonymy of R. sagraiana.
RESUMEN
Se caracterizan e ilustran con micrografías electrónicas de barrido cinco especies del
género Rissoina de Cuba: Rissoina sagraiana, R. pulchra, R. labrosa, R. redferni y R. can-
cellina spec. nov. Se considera Rissoina cancellata como un sinónimo de R. sagraiana.
INTRODUCTION
Some of the species of the genus Ri-
ssoina in the Caribbean are poorly known,
sometimes only from bibliographic refer-
ences or from just a few figures. Even
species recently described lack good pho-
tographs of details, such as the protoconch
or microsculpture; this hinders the perfect
knowledge of the species as well as the
comparison with other species of the group,
sometimes forcing other researchers to face
problems about synonymy or validity.
Some species of this group were
described for the Caribbean in a previ-
ous century: D'ORBIGNY (1842), PHILIPPI
(1847), ADAMS (1850), etc.
PONDER (1985) revised the family
Rissoidae at the generic and subgeneric
levels, including among others the sub-
genus Phosinella Mórch, 1876 based on
one of the species here studied.
The taxonomy of the species treated
herein has been subject to disagreement.
DESJARDIN (1949) revised the Cuban
species of Rissoina and considers R. pulchra
as a synonym of R. cancellata, followed in
this by PONDER (1985). Conversely DE
JONG AND COOMANS (1988) consider that
R. pulchra is a synonym of R. sagraiana.
Other works on the Caribbean malaco-
logical fauna have recorded and repre-
sented species of this group: WARMKE AND
ABBOTT (1961), ABBOTT (1974), DE JONG
AND COOMANS (1988), Díaz MERLANO AND
PUYANA HEGEDUS (1994), Rios (1994),
REDFERN (2001), ESPINOSA AND ORTEA
(2002), LEE (2009), among others.
* Museo de Historia Natural, Campus Universitario Sur, 15782 Santiago de Compostela, Spain.
** Centro de Estudios Ambientales de Cienfuegos (CEAC), División de Gestión Ambiental (DGA), calle 17,
esquina Ave. 46, Cienfuegos, Cuba.
a
Iberus, 28 (1), 2010
In the present paper, we present
information on some characters of five
Caribbean species of Rissoina which are
morphologically very close, although the
protoconchs show enough characters for
differentiation. The previous papers on
this group by the authors were ROLÁN
AND FERNÁNDEZ-GARCÉS (2009a, 2009b).
Abbreviations
BMNH The Natural History Museum,
London
CFG coll. Fernández Garcés, Cienfuegos
CHL collection of Harry G. Lee, Florida
SYSTEMATICS
IES Intituto de Ecología y Sistemática,
La Habana
IGH Instituto de Oceanología, La
Habana
MCZ Museum of Comparative Zoology,
Harvard
MHNS Museo de Historia Natural, San-
tiago de Compostela
MNCN Museo Nacional de Ciencias
Naturales, Madrid
MNHN Museum national d'Histoire
naturelle, Paris
ZMB Zoologisch Museum, Berlin
s shell
] juvenile
Superfamily RISSOIDEA J. E. Gray, 1847
Family RISSOIDEA J. E. Gray, 1847
Subfamily RISSOININAE Stimpson, 1865
Genus Rissoina d'Orbigny, 1840
Type species: Rissoina inca d'Orbigny, 1840. Original designation.
Rissoina sagraiana d'Orbigny, 1842 (Figs. 1A-F)
Rissoina sagra d'Orbigny, 1842. Hist. Nat. Cuba, Atlas pl. 12, figs 4,5.
Rissoina sagraiana d'Orbigny, 1846. Hist. Nat. Cuba, vol. 2: 25.
Rissoina cancellata Philippi, 1847. Zeitsch. Malak., 1846: 127.
Type material: R. sagraiana: Lectotype, selected in original lot of syntypes by Ángel Luque and
hereby designated (Fig. 1A-C) and 3 paralectotypes in BMNH. R. cancellata: Holotype in ZMB (coll.
Pfeiffer, 2334), 5.8 mm (see Remarks).
Other material examined: Cuba: 12 s, 2j, Cayo Carenas, Cienfuegos Bay, 5-10 m (CFG); 20 s, 16 j,
Rancho Luna, Cienfuegos, 12 m (CFG); 12 s, Faro Luna, Cienfuegos, 40 m (CFG); 8 s, 3j Mangles
Altos, Cienfuegos, 8 m (CFG); 5 s, Rancho Club, Cienfuegos Bay, 2 m (CFG); 10 s, Rancho Luna,
Cienfuegos, 10-55 m (MHNS); 10 s, Faro de los Colorados, Cienfuegos, 20 m (MHNS). Nicaragua:
1 s, 1 f, Cayo Witties, 20 m (MHNS).
Description: Shell (Figs. 1A-C, 1E): see
the original descriptions (D'ORBIGNY,
1846; PHILIPPL, 1847). Protoconch (Figs.
1D, 1F) with about 2 */2 - 2 9/4 whorls,
sometimes almost 3 whorls, and with a
diameter of about 390-400 um. It is
smooth but on the last whorl (or starting
a little before) an evident spiral thread
can be observed at the middle of the pe-
riphery. At the beginning of the teleo-
conch there are two spiral cords in the
middle of the whorl; in the following
80
whorls, a new spiral cord appears be-
tween the two previous ones. The spiral
cords are 6-7 on the last whorl, plus
some smaller ones near the base.
Holotype of 5.8 mm, other shells
from Cuba are slightly larger.
Distribution: This species is well
known from many works from all the
Caribbean: WARMKE AND ABBOTT (1961)
from Puerto Rico; VOKES AND VOKES
(1983) from Campeche and Yucatan; DE
JONG AND GCOOMANS (1988) from
ROLÁN AND FERNÁNDEZ-GARCÉS: Caribbean Rissoina of the group R. sagraiana-cancellata
Figure 1. Rissoina sagraiana d'Orbigny, 1842. A-C: lectotype, 5.5 mm (BMNH); D: protoconch of
the lectotype; E: shell from Cienfuegos, Cuba, 5.7 mm; F: Protoconch, same shell as E.
Figura 1. Rissoina sagraiana d'Orbigny 1842. A-C: lectotipo, 5,5 mm (BMNAH); D: protoconcha del
lectotipo; E: concha de Cienfuegos, Cuba, 5,7 mm; E: Protoconcha, misma concha que E.
Curacao, Aruba and Bonaire; DÍAZ REDFERN (2001) from Abaco (Bahamas)
MERLANO AND PUYANA HEGEDUS (1994) with a good representation of the proto-
from Colombia; Rios (1994) from Brasil; conch; LEE (2009) from Northeast
8 |
Iberus, 28 (1), 2010
Florida. Cuba is the type locality and
also we have material from Nicaragua.
Remarks: Examining the material from
ZMB we found one lot (ZMB, 2334) with
only one shell of 5.8 mm from Cuba, which
is labelled as R. cancellata Philippi (coll.
Pfeiffer), in good condition, with multi-
spiral protoconch, with a spiral cordlet on
the last whorl. We have no doubt that this
shell is the holotype of R. cancellata because
the locality and collector coincide with the
indications given by PHILIPPI (1847) in the
original description. It seems to be the
same species that we usually call R. sagra-
lana with the characters previously men-
tioned in the description.
Rissoina sagraiana appears in the liter-
ature as the oldest species name for this
morphologically similar group, despite
the indication by DESJARDIN (1949) listing
the name Rissoina sagraiana d'Orbigny, as
from 1853. The species was first published
by D'ORBIGNY (1842) under the name Ris-
soina sagra in the caption of the plate and
thereby made available under the provi-
sions of article 12.2.7 of the International
Code of Zoological Nomenclature; the
complete description was published years
later (1846) under the name R. sagraiana
and the publication in parts was com-
pleted only in 1853 (dates as stated in
BOUCHET AND ROCROI, 2005). Therefore
there are two different spellings of the
name, but according to article 32.5.1.1 of
the ICZN, correction of the spelling of a
name in a later part of a work published
in parts constitutes an evidence for an
inadverted error and therefore, the species
must be cited as Rissoina sagraiana d'Or-
bigny, 1842 having priority over Rissoina
cancellata Philippi, 1847.
This species is figured under the
name R. cancellata by PONDER (1985: 83,
fig. 135) who considered it as a synonym
of R. pulchra C. B. Adams, 1850), the type
species of subgenus Phosinella Mórch,
1876. The protoconch shown therein is
typical of Rissoina sagraiana.
Rissoina pulchra (C. B. Adams, 1850) (Figs. 2A-E)
Rissoa pulchra C. B. Adams, 1850. Cont. Conch., 7: 114.
Type material: Lectotype (Fig. 2A) in MCZ (156423)1(C. B. Adams coll., Acc. 1173), designated by
CLENCH AND TURNER (1950) by inference of a holotype.
Other material examined: Cuba: 1 s, Faro Luna, Cienfuegos 40 m (CFG); 1 s, Rancho Luna, 20 m
(MHNS); 1 s, Faro de los Colorados, 35 m (MHNS); 1 s, Rancho Club, 10 m (all in Cienfuegos Bay);
1 j, Maria la Gorda, 30 m (MHNS).
Description: See original description
(ADAMS, 1850 and CLENCH AND TURNER,
1950). The shell (Figs. 3A-B) seems to be
very similar to that of R. cancellata even
in the protoconch, which is smaller (Fig.
3C), also multispiral, with about 2 !/2
whorls and a diameter of 270 um. Under
magnification it seems that this proto-
conch lacks any spiral sculpture.
Dimensions: the lectotype is 5.7 mm.
Shells from Cuba may be a little larger
(up to 7.0 mm).
Distribution: From Abaco (Bahamas)
by REDFERN (2001) showing a proto-
conch. “Jamaica” in the original descrip-
tion (type locality).
Remarks: This is the type species of the
subgenus Phosinella Mórch, 1876 (SD
82
Nevilll, 1885). PONDER (1985) considered
R. pulchra C. B. Adams, 1850 as a synonym
of R. cancellata and used the latter name
because Rissoa pulchra is a primary
homonym of Rissoa pulchra Forbes, 1844,
described from the Aegean Sea. As already
mentioned the shell figured in PONDER
(1985) and presumably also the specimens
used for anatomy are R. sagraiana = can-
cellata rather than R. pulchra. The taxon
Rissoa pulchra Forbes, 1844 has never been
mentioned since its description, and it is
uncertain to which species it refers. Con-
versely, R. pulchra Adams, 1850 has been
recorded sometimes during the last 50
years: NOWELL-USTICKE (1959), ABBOTT
(1974), Díaz MERLANO AND PUYANA
HEGEDUS (1984), PONDER (1985), DE JonG
ROLÁN AND FERNÁNDEZ-GARCÉS: Caribbean Rissoina of the group R. sagraiana-cancellata
Figure 2. Rissoina pulchra (C. B. Adams, 1850)
¿JAS Lectotype, )./ min, MCZ (156423). B: shell,
5.6 mm, Cuba (MHNS); C: protoconch, same shell as B; D-E: protoconch of the lectotype.
Figura 2. Rissoina pulchra (C. B. Adams, 1850). A: Lectotipo, 5,7 mm, MCZ (156423). B: concha,
5,6 mm, Cuba (MHNS); C: protoconcha, misma concha que B; D-E: protoconcha del lectotipo.
AND COOMANS (1988), Rios (1994),
REDFERN (2001). Although this is proba-
bly short of the 25 publications required
to make it a nomen protectum under the
provisions of ICZN, we also consider
current usage in leading databases such
as Malacolog , the World Register of Marine
species and
the Encyclopedia of Life .
For these reasons we propose to keep
using the name R. pulchra C. B. Adams.
83
Iberus, 28 (1), 2010
Table I. Schematic comparison of the shells of the Rissoina sagraíana group.
Tabla I. Comparación de las conchas del grupo de Rissoina sagraiana.
species protoconch whorls pm diameter protoconch
sagraiana 21-24 390-400
pulchra a 270
cancellina 2 320-330
labrosa 2 400
redferni 11/ 380
CLENCH AND TURNER (1950) men-
tioned and figured the holotype of this
taxon: as Adams (1850) did not designate
a holotype, the previous mention may be
considered as a lectotype designation.
REDFERN (2001) represented the three
species sagratana-cancellata-pulchra and
described the protoconchs with the dif-
spiral cord in protoconch
spiral cords at first teleoconch whorl
yes 2
no 2
yes 3
yes 2 small, joint
no 3
ference of their being keeled or not.
According to him, R. pulchra differs from
R. sagraiana and R. cancellata (actually, from
the species described herein as R. cancel-
lina spec. nov.) in having a wider proto-
conch without any spiral cord. We agree
with this difference. The details of this
comparison are given in Table 1.
Rissoina cancellina spec. nov. (Figs. 3A-E)
Type material: Holotype (Fig. 3A) in MNCN (15.05/53590). Paratypes: ZMB (1, n* 115039) (Fig. 3B)
labelled as Rissoina cancellata Phil. v. pulchra C. B. Adams, Jamaica, coll. Paetel; MNHN (1), MHNS
(5), IES (1), CFG (10).
Other material examined: Cuba: 8 s, 3j, Cayo Carenas, Cienfuegos Bay, 5-10 m (CFG); 10 s, Rancho
Luna, 20-40 m (CFG); 11 s, 3j, Faro de los Colorados, Cienfuegos, 15 m (CFG); 2 s, La Concha, Cien-
fuegos Bay, 3 m (CFG); 2 ej, Guajimico, Cienfuegos, 3 m (CFG); 10 s, 8j, Rancho Luna, Cienfuegos,
10-55 m (MHNS); 3 s, Faro de los Colorados, Cienfuegos, 20 m (MHNS); 2 s, 3 j, Bajo de Sancho
Pardo, 4 m (MHNS); 1 s, Cuba, ZMB (coll. Dunker, 115036). Saint Thomas: 2 s, ZMB (115038). West
Indies: 7 s, ZMB (coll. Paetel, 115037). Nicaragua: 5 s, 5j, Cayo Miskitos, 25 m (MHNS).
Type locality: Cienfuegos, Cuba.
Etymology: From the Latin word cancelli “lattice gate” alluding to the crossed sculpture, and also due
to the similarity with Rissoina cancellata, taxon which now is considered in synonymy of R. sagraiana.
Description: Shell (Figs. 3A-B) ovoid
elongate, pointed, solid and whitish.
Protoconch (Figs. 3C, 3D) almost cylin-
drical and a little depressed, with
between 320-330 um, and about 2
whorls, the first one smooth and the
second with a spiral cord at the middle.
The beginning of the teleoconch has
immediatly three spiral cords. The sub-
sequent whorls also have 3-5 spiral
cords crossed by axial ribs. These ribs
are 10-13 in the first whorls and 16-19 on
the last one. On the body whorl the
cords are 9-10. On the subsutural area
(Fig. 3E) there are about five very small
spiral threads. Under high magnifica-
84
tion (Fig. 3F) numerous micro perfora-
tions can be seen on the surface of the
shell. Aperture ovoid with a typical
depression of the genus near the base.
The holotype is 9.3 mm. Other shells
are slightly smaller.
Distribution: Probably this species
has a large distribution in the
Caribbean, but usually it has been
recorded under different names, so that
confirmation is needed in order to avoid
possible confusion with other similar
species. REDFERN (2001, as R. cancellata)
figured the protoconch.
Remarks: The holotype is a shell in
good condition and with a good proto-
ROLÁN AND FERNÁNDEZ-GARCÉS: Caribbean Rissoina of the group R. sagraiana-cancellata
Figure 3. Rissoina cancellina spec. nov. A: holotype, 5.7 mm, Cuba (MNCN); B: paratype, 8.5
mm, ZMB (115039); C: protoconch of the holotype; D: protoconch, Cayo Miskitos, Nicaragua;
E, F: microsculpture of the holotype.
Figura 3. Rissoina cancellina spec. nov. A: holotipo, 5,7 mm, Cuba (MNCN); B: paratipo, 8,5 mm,
ZMB (115039); C: protoconcha del holotipo; D: protoconcha, Cayo Miskitos, Nicaragua; E, EF: micro-
escultura del holotipo.
85
Iberus, 28 (1), 2010
Figure 4. Rissoina labrosa Schwartz, 1860. A: Shell, 11.0 mm, Cienfuegos, Cuba; B, C: Protoconch.
Figura 4. Rissoina labrosa Schwartz, 1860. A: Concha, 11,0 mm, Cienfuegos, Cuba; B, C: Protoconcha.
conch (Fig. 2A) measuring 9.3 mm
(ZMB, 115039) and labelled as Rissoina
cancellata Phil. v. pulchra C. B. Adams,
Jamaica, coll. Paetel.
In the material in the ZMB, there are
several shells which can belong to this
species. One of them (ZMB, 115036)
from Cuba, coll. Dunker, has a shell
whose protoconch presents excrescences
on its upper part and is hence difficult
to observe. Six shells more in this lot
have lost the protoconch and are badly
eroded. Another lot (ZMB, 115037)
includes a probable R. cancellina but
eroded and without protoconch. One
more (ZMB, 115038) may also be the
same species but is much eroded.
R. cancellina spec. nov. must be com-
pared with the following;
R. sagraiana has a protoconch with
more whorls (2 */2 - 2 9/4) and the first
whorls of the teleoconch have only two
spiral cords (see Table 1).
R. pulchra has a protoconch with more
whorls, lacking any spiral cord, while in
the beginning of the teleoconch there are
only two cords on the first whorls.
R. redferni has a protoconch with less
whorls (1 */2) but wider, and without
any spiral cord.
Rissoina labrosa Schwartz, 1860 (Figs. 4A-B)
Rissoina labrosa Schwartz, 1860. Uber... Die Gattung Rissoina, pl. 7, fig. 58.
Rissoina sheaferi Mc Ginty, 1962: 42, pl. 3, fig. 5.
Type material: Supposedly in the Vienna Museum. Not examined.
Material examined: Cuba: 1 s, Cayo Carenas, Cienfuegos Bay, 10 m (CEG); 1 s, Faro de los Colorados,
Cienfuegos, intertidal (CFG); 3 j, Rancho Luna, Cienfuegos, 12 m (CFG); 1 s, Faro Luna, Cienfuegos,
86
ROLÁN AND FERNÁNDEZ-GARCÉS: Caribbean Ríissozna of the group R. sagraiana-cancellata
Figure 5. Rissoina redferni Espinosa and Ortea, 2002. A: shell, 6.4 mm, Egmond Key, Florida
(CHL); B: shell, 4.8 mm, Cienfuegos, Cuba; C: shell, 5.8 mm, Cayo Miskitos, Nicaragua; D, E:
protoconch, shell from Florida; F: protoconch, shell from Cuba; G: microsculpture of the proto-
conch, same shell as D; H, I: microsculpture of the teleoconch, shell from Florida.
Figura 5. Rissoina redferni Espinosa y Ortea, 2002. A: concha, 6,4 mm, Egmond Key, Florida (CHL);
B: concha, 4,8 mm, Cienfuegos, Cuba; C: concha, 5,8 mm, Cayo Miskitos, Nicaragua; D, E: protocon-
cha, concha de Florida; F: protoconcha, concha de Cuba; G: microescultura de la protoconcha, misma
concha que D; H, I: microescultura de la teleoconcha, concha de Florida.
87
Iberus, 28 (1), 2010
20 m (MHNS); 2 s, Rancho Luna, Cienfuegos, 22-54 m (MHNS); 1 s, Cable Inglés, Cienfuegos, 20 m
(CEG); 5 s, 6j, Bajo de Sancho Pardo, 3-5 m (MHNS); 2 s, 5 j, María la Gorda, 30 m (MHNS). Mexico:
4 s, Puerto Morelos, Quintana Roo, Yucatán (MHNS). Nicaragua: 3 s, Cayo Los Muertos, 15 m (MHNS).
Description: See SCHWARTZ (1860).
The protoconch has a little more than
2 whorls and has a cylindrical pro-
file.
Distribution: Known from Cuba
(type locality), Curacao, Aruba and
Bonaire (DE JONG AND COOMANS, 1988).
Nicaragua and Mexico, in the present
work.
Remarks: This shell may be consi-
dered somewhat different from the
others included in the group, and was
previously mentioned as being larger
and more pointed, with a straight
profile, with the suture scarcely marked,
and the protoconch cylindrical and ele-
vated. We figure a shell (Fig. 4A) and
protoconch (Figs. 4B-C) for comparison.
Rissoina redferni Espinosa and Ortea, 2002 (Figs. 5A-H)
Rissoina redferni Espinosa and Ortea, 2002. Avicennia, 15: 142.
Type material: Holotype (IGH) not examined.
Other material examined: Cuba: 25 shells, Cienfuegos Bay, 35 m (MHNS); 3 s, Punta Tamarindo,
Cienfuegos, 20 m (MHNS); 5 s, de Sagua la Grande, Villa Clara, 3-10 m (CFG); 4 s, Batabanó, Habana,
5-7 m (CFG). Florida: 4 s, Egmond Key (CHL). Nicaragua: 3 s, Cayo Miskitos, 6 m (MHNS); 7 s,
Cayo Los Muertos, 12 m (MHNS); 5 s, Cayo Witties, 20 m (MHNS).
Description: Shell (Figs. 5A-C): see Es-
PINOSA AND ORTEA (2002). This descrip-
tion is short in some aspects referring to
micro sculpture: the protoconch (Figs.
5D-E) has 1 */4 whorls which have small
tubercles spirally aligned, more evident
near the end (Fig. 5G). The nucleus has
about 160 um; the first half whorl mea-
sures about 270 um, and the protoconch
about 380 um. The micro sculpture of the
teleoconch (Figs. 5H-I) presents spiral
lines formed by a rough surface and un-
der very high magnification shows small
pits. The comparison of the material
from Cuba and from the Bahamas did
not show meaningful differences.
Distribution: Known from Bahamas
(REDFERN, 2001), Nicaragua and Cuba
ACKNOWLEDGEMENTS
The authors thank Jesús Méndez
and Inés Pazos of the Centro de Apoyo
Científico y Tecnológico a la Investi-
gación (CACTI) of Vigo University for
the SEM micrographs of the shells.
Thanks also to Matthias Glaubrecht
(ZMB) for sending type material for ex-
88
(type locality: Playa Flamenco, Cayo
Coco).
Remaks: We consider R. redferni a valid
species, different from all similar species
previously mentioned. In the original
description comparison with R. pulchra
had not been made; this latter has a more
reticulated shell, with more numerous
spiral ribs, the protoconch being larger
and with more whorls; R. cancellina spec.
nov. has a similar shell, but its proto-
conch is larger and has 2 */4 whorls
instead of 1 */4. R. sagraiana has a proto-
conch with 2 */2 - 2 9/4 whorls. On the
other hand, comparison with R. fenestrata
is not necessary, as the shells and proto-
conchs are rather different (see ROLÁN
AND FERNÁNDEZ-GARCÉS, 2009b).
amination; to Adam Baldiger (MCZ) for
sending photographs of the type of R.
pulchra and Amelia MacLellan (BMNH)
for the information and the photographs
of the types from the type material of R.
sagraiana; to Antonio A. Monteiro for the
English language revision.
ROLÁN AND FERNÁNDEZ-GARCÉS: Caribbean Ríissozna of the group R. sagraiana-cancellata
BIBLIOGRAPHY
ABBOTT]J.T. 1974. American Seashells. Van Nos-
trand Reinhold Company, New York. 663
Pp 291pls:
ADAMS C.B. 1850. Descriptions of supposed
new species of marine shells which inhabit
Jamaica. Contributions to Conchology, 7: 109-
123:
BOUCHET P. AND ROCROI J.P. 2005. Classifica-
tion and nomenclator of gastropod families.
Malacologia, 47(1-2): 1-357.
CLENCH W.J. AND TURNER R. D. 1950. The west-
ern Atlantic marine mollusks described by C.
B. Adams. Occasional Papers on Mollusks 1(15):
233-403.
DESJARDIN M. 1949. Les Rissoina de l'Ile de
Cuba. Journal de Conchyliologie, 89: 193-208,
pIs59=0!
DíAz MERLANO J.M. AND PUYANA HEGEDUS M.
1994. Moluscos del Caribe Colombiano. Un ca-
tálogo ilustrado. Colciencias-Fundación Na-
tura-Invemar. Santafé de Bogotá. 291 pp
ESPINOSA J. AND ORTEA J. 2002. Descripción de
cuatro nuevas especies de la familia Rissoi-
nidae (Mollusca: Gastropoda). Avicennia, 15:
141-146.
JONG K.M. DE AND COOMANS H.E. 1988. Marine
gastropods from Curacao, Aruba and
Bonaire. Studies on the Fauna of Curacgao and
other Caribbean Islands, 69. 261 pp, 47 pls.
LEE H.G. 2009. Marine shells from Northeast
Florida. Jacksonville Shell Club, Jacksonville.
204 pp.
NEvILL G. 1885. Hand list of Mollusca in the In-
dian Museum, Calcutta. Part Il. Gastropoda,
Prosobranchia-Neurobranchia (contd.). Gov-
ernment Printer, calcutta, x + 306 pp.
MÓRCH O.A.L. 1875-1877. Synopsis mollusco-
rum marinorum Indiarum occidentalium im-
primis insularum danicarum. Malakozoolo-
gische Blátter, 22: 142-184 [1875], 23: 45-58,
87-143 [1876], 24: 14-66, 93-123 [1877].
NOwELL-USTICKE G.W. 1959. A check-liat of the
marine shells of St. Croix and Virgin Islands.
Christiansted, St. Croix, 90 pp.
ORBIGNY A. D”, 1841-1853. Mollusques. In: R. de
la Sagra, Histoire physique, politique et nature-
lle de l'1le de Cuba. Arthus Bertrand, Paris.[Vol-
ume 2 pp. 1-112, issued 1846 and Atlas pl. 1-
28 issued 1842, fide Bouchet and Rocroi,
2005].
PHILIPPI R.A. 1847. Testaceorum novorum cen-
turia. Zeitschrift fúr Malakozoologie, 4: 113-
128.
PONDER W.F. 1985. A review pf the Genera of
the Rissoidae (Mollusca: Mesogastropoda:
Rissoacea). Records of the Australian Museum,
suppl. 4: 1-221.
REDFERN C. 2001. Bahamian seashells. A thou-
sand Species from Abaco, Bahamas. Bahami-
ansehlls.com Inc. Boca Raton, 280 pp, 124
ls.
Rios E.C. 1994. Seashells of Brazil. Fundacáo Ci-
dade do Rio Grande, Rio Grande, 345 pp,
113 pls.
ROLÁN E. AND FERNÁNDEZ-GARCÉS R. 2009a.
Description of a new species of Rissoina
(Prosobranchia, Rissoidae) from Bermuda.
Gloria Maris, 48 (1): 17-21.
ROLÁN E. AND FERNÁNDEZ-GARCÉS R. 2009b.
New information on Cuban Rissoina (Mol-
lusca: Rissoidae) 1. Rissoina fenestrata and R.
vanderspoeli. Novapex, 10 (2): 59-64.
SCHWARTZ VON MOHRENSTERN G. 1860. Uber
die Familie der Rissoiden und insbesondere
die Gattung Rissoina. Denkschriften der Math-
ematisch-Naturwissenschaftlichen Classe der
Kaiserlichen Akademie der Wissenschaften, 19:
71-188, 11 pls.
VOKES H.E. AND VOKES E.H. 1983. Distribution
of shallow-water marine Mollusca, Yucatan
Peninsula, Mexico. Mesoamerican Ecology In-
stitute Monograph 1, Middle American Re-
search Institute Publication, 54: viii, 183 pp,
50 pls.
WARMKE G.L. AND ABBOTT J.T. 1961. Caribbean
Seashells. Livingstone Publishing Co., Penn-
sylvania. 348 pp.
89
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Iberus, 28 (14: 91-96, 2010
A new Manzoniía (Gastropoda: Rissoidae) from northwes-
tern Morocco
Una nueva Manzonía (Gastropoda, Rissoidae) del Noroeste de
Marruecos
Serge GOFAS*
Recibido el 10-11-2010. Aceptado el 30-IV-2010
ABSTRACT
A new species of the family Rissoidae is described from the upper slope of Northwestern
Morocco. Some characters of this species would relate it to the genus Manzonia whereas
others are shared with species currently assigned to the genus Alvania (subgenus Alvinia).
Some possible diagnostic characters of Manzonia are discussed.
RESUMEN
Se describe una nueva especie de la familia Rissoidae, de la parte superior del talud con-
tinental del Noroeste de Marruecos. Algunos caracteres de esta especie sugieren su inclu-
sión en el género Manzonia, mientras otros se asemejan a especies que se clasifican
actualmente en el género Alvania [sugénero Alvinia). Se comentan algunos caracteres
posiblemente diagnósticos del género Manzonia.
INTRODUCTION
Small gastropods belonging to the
family Rissoidae are a prominent part of
the littoral, shelf and upper bathyal mol-
luscan faunas in the Mediterranean,
temperate Western Europe and are par-
ticularly species-rich in the north-east
Atlantic archipelagos: Canary Islands
and Madeira (vAN AARTSEN, 1981;
ROLÁN, 1987; MOOLENBEEK AND FABER
1987; MOOLENBEEK AND HOENSELAAR
1989; ROLÁN AND FERNANDES, 1990;
AMATI, 1992; HOENSELAAR AND GOUD,
1998; SEGERS AND SWINNEN, 2002), the
Azores (GorFas 1990; BOUCHET AND
WARÉN 1993; HOENSELAAR AND GOUD
1998), and the Cape Verde Islands
(ROLÁN 1987; MOOLENBEEK AND ROLÁN
1988). There are currently 317 species of
this family recognized as valid for the
Mediterranean and Northeast Atlantic
south to 28” N (CLEMAM database
searched April, 2010) and this inventory
may be near completion. However, the
species in this family are particularly
prone to evolve towards the loss of
planktotrophic larval development,
therefore giving rise to “pairs” of related
species where the non-planktotrophic
species is derived and tends to have a
restricted geographic range (OLIVERIO,
1994; 1996). For this reason, more dis-
coveries of new species are to be
expected.
This paper provides a description of a
species encountered in the straits of
* Departamento de Biología Animal, Facultad de Ciencias, Universidad de Málaga, E-29071 Málaga, Spain.
Correspondence: sgofasuma.es
91
Iberus, 28 (1), 2010
Gibraltar, presently known only from
two specimens but definitely distinct
from those previously known in the area.
SYSTEMATICS
The species is tentatively assigned to the
genus Manzonia, and the definitive char-
acters of Manzonía are discussed.
Genus Manzoniía Brusina, 1870
Type species: Turbo costatus J. Adams, 1797, by original designation (= Turbo crassus Kanmacher,
1798; non Turbo costatus von Salis Marschlins, 1793)
Manzonia alexandrei n. sp. (Figs. 1-7)
Type material: Holotype MNHN 22876 (shell, 1,8 x 1.1 mm) from “Balgim” sta. DW57, and 1
paratype MNHN 22877 (specimen, 1.5 x 1.0 mm) from a sample collected in the vicinity of strait
of Gibraltar, from fishermen, 1971. Only known from the type specimens.
Type locality: off NW Morocco, 35* 42” N, 06? 35” W, 548 m.
Etymology: The species is dedicated to my son Alexandre
Description. Shell with a moderately
high spire, adults up to 1.8 x 1.1 mm.
Protoconch of 1.25 convex whorls, with
a sculpture of six rather flat, beaded
spiral cords, narrower than the inter-
spaces; the nodes on the cords extend
towards the interspaces in which they
determine faint axial folds. Teleoconch
of 2 */4 to 2 */2 convex whorls, angu-
lated at a distance abapically from
suture so as to make the whorls shoul-
dered. Axial sculpture of flexuous,
narrow and very elevated folds, highest
at the shoulder of whorls, fading out
prior to reaching the suture which is not
at all undulated, and reaching quite far
towards the abapical surface of the body
whorl. Spiral sculpture of very flat
cords, broader than the interspaces,
bearing irregular, very faint grooves
along spiral lines forming irregular pits;
interspaces with those grooves much
more definite, separating ca. 15 raised
spiral threads; the spiral cords are more
elevated towards the abapical half of the
body whorl, below the line prolonging
the suture. The base of the body whorl
with a rather strong and elevated spiral
cord, situated very close to a small
umbilical chink and separated from the
rest of the whorl by a distinct spiral
depression. Outer lip opisthocline, bent
in its adapical part and thickened exter-
nally by a broad rim sloping gently
za
towards the adjacent surface of body
whorl; smooth inside. Inner lip rather
thin, slightly detached from the preced-
ing whorl except in the centre of the
parietal area. Shell colour white.
Remarks: This species seems to be
living on hard substrate in rather deep-
water, which would explain its rarity, or
difficulty of collection. The specimen
from the strait of Gibraltar was retrieved
from a large stone riddled with cavities,
together with many specimens of
Alvanta zylensis Gofas and Warén 1982
and other gastropods.
The new species features a combina-
tion of character states which are not
found together in any of the species
described in the eastern Atlantic or
Mediterranean. The protoconch with
nodose spirals differs drastically from the
pattern seen in most species of Manzonia
with paucispiral protoconch from Mac-
aronesia (see MOOLENBECK AND FABER,
1987) or from the Lusitanian seamounts
(see GOFAS, 2007) where the cords, if any,
are smooth. It is reminiscent of the kind
of protoconch seen in Alvania weinkauffi
Weinkautff, 1868 (see PONDER, 1985, fig.
102B) and in its sibling Alvania fischeri
(Jeffreys, 1884) but there, the nodes are
even more separated, looking under high
magnification like small patches aligned
over a minute spiral thread and pasted
over the underlying surface.
GOFAS: A new Manzonía from nothwestern Morocco
Figures 1-7. Manzonia alexandrei n. sp. 1: holotype from off NW Morocco, 548 m, apertural view
(actual size 1.8 mm); 2: protoconch of the holotype; 3: detail of microsculpture of the holotype; 4:
paratype from near the strait of Gibraltar, apertural view (actual size 1.5 mm); 5: protoconch of
the paratype; 6, 7: detail of microsculpture of the paratype.
Figures 1-7. Manzonia alexandrei ». sp. 1: holotipo, frente a la costa NO de Marruecos, 548 m, vista
apertural (tamaño real 1,8 mm); 2: protoconcha del holotipo; 3: detalle de la microescultura del holo-
tipo; 4: paratipo, cerca del estrecho de Gibraltar, vista apertural (tamaño real 1,5 mm); 5: protoconcha
del paratipo; 6, 7: detalle de la microescultura del paratipo.
93
Iberus, 28 (1), 2010
Figures 8, 9. Details of microsculpture of Manzonía, comparable to Figures 3 and 7. 8: Manzonia
crassa (Kanmacher, 1798), specimen from Benalmádena, southern Spain; 9: Manzonia arata Gofas,
2007, shell from Ampere seamount.
Figuras 8, 9. Detalles de la microescultura de Manzonia, comparables con las Figuras 3 y 7. 8: Manzo-
nia crassa (Kanmacher, 1798), ejemplar de Benalmádena, sur de España; 9: Manzonia arata Gofas,
2007, concha del banco Ampere .
The most similar species with respect
to characters of the teleoconch may be
Manzonia arata Gofas, 2007, described
from the Ampere seamount off western
Morocco, which shares the general
outline and aspect of the spiral sculpture.
The latter is nevertheless clearly different
in having the ribs protruding against the
suture so as to make it strongly undu-
lated; the completely different proto-
conch, keeled with indistinct and smooth
spirals, may indicate that they are unre-
lated. There is also a superficial resem-
blance with Frigidoalvania thalassae
Bouchet and Warén, 1993, described from
deep water of Bay of Biscay, but the latter
differs in being much larger and in
having more numerous and less raised
axial ribs. The protoconch of E. thalassae is
radically different, being rather conical in
shape with faint spiral striae.
The generic placement in Manzonia
is backed by the general build of the
94
shell and the presence of a spiral depres-
sion around the base of the body whorl.
Nevertheless it must be stressed that the
separation between the genera Manzo-
nia, Alvanta s.l. and Onoba is not at all
clearcut. Manzonta, as currently recog-
nized, may form a monophyletic group
around its type species Manzonia crassa.
Its diagnostic character states (MOOLEN-
BEEK AND FABER, 1987) include (1) the
presence of a “duplicate” peristome 1. e.
a strong outer rim on which the sculp-
ture of the outer surface of the body
whorl is usually continued, and an inner
rim continuing the inner surface of the
aperture, (2) the presence of a spiral de-
pression and / or stronger spirals on the
abapical part of body whorl, and (3) a
peculiar microsculpture where the
larger spirals bear spirally aligned rows
of minute (ca. 1 um) pits whereas the in-
tervening spaces are furnished with
minute, raised spiral lamellae, and still
GOFAS: A new Manzon:a from nothwestern Morocco
more minute axial threads abutting be-
tween these. The value of this latter
character has been treated as doubtful
by BOUCHET AND WARÉN (1993: 657)
The microsculpture seen in Manzonia
alexandrei n. sp. is not as characteristic as
that seen in the type species and in
many Macaronesian coastal species. It is
nevertheless not structurally different,
and differs from Manzonia crassa (figure
8) in that the spiral elements in the
grooves are more closely packed
together and the pits are not so neatly
demarcated. However such a structure
can be seen to be very similar in Manzo-
nia arata, which from other characters
can be assumed to be phylogenetically
related to Manzonia lusitanica Gotas
2007, M. crispa (Watson, 1897) and to the
type species.
PONDER (1985: 48) advocated that
the subgenus Alvinia Monterosato, 1884
(with Alvania weinkauffi as type species)
BIBLIOGRAPHY
AMATI B. 1992. On a new species of Manzonia
from Selvagens Islands, (Gastropoda, Pro-
sobranchia, Rissoidae). Publicacóes Ocasionais
da Sociedade Portuguesa de Malacología, 16: 9-
pas
BOUCHET P. AND WARÉN A. 1993. Revision of
the Northeast Atlantic bathyal and abyssal
Mesogastropoda. Bollettino Malacologico, sup-
plement 3: 579-840.
GOFASS. 1990. The littoral Rissoidae and Ana-
bathridae of Sáo Miguel, Azores. Acgoreana,
supplement: 97-134.
GOFAS S. 2007. Rissoidae (Mollusca: Gas-
tropoda) from northeast Atlantic sea-
mounts. Journal of Natural History, 41 (13-16):
779-885
HOENSELAAR H.J. AND GOUD J. 1998. The Ri-
ssoidae of the Cancap expeditions, I: the
genus Alvania Risso, 1826 (Gastropoda Proso-
branchia). Basteria, 62: 69-115.
MOOLENBEEK R.G. AND FABER M.J. 1987. The
Macaronesian species of the genus Manzonia.
De Kreukel, 23 (1): 1-16, pl. 1; 23 (2-3): 23-31;
23 (10): 166-179, pl. 2-3.
MOOLENBEEK R.G. AND ROLÁN E. 1988. New
species of Rissoidae from the Cape Verde Is-
lands (Mollusca, Gastropoda) part 1. Bul-
letin, Zoólogisch Museum, Universiteit van Am-
sterdam, 11 (14): 121-126.
should belong to Manzonia rather than
to Alvania, based on shared characters
such as the presence of a duplicated
peristome, of stronger spiral cords on
the abapical part and the radula with
numerous cusps on the inner side of the
laterals. This view is also supported by
the fact that Alvinia has a simple trian-
gular metapodial tentacle like Manzonia,
and unlike Alvania s. str. (see PONDER,
1985: 39) which has a bundle of separate
metapodial tentacles.
The combination of characters seen
in Manzonía alexandrei n. sp. further sup-
ports Ponder's view that some species
which lack the typical Manzonia-
microsculpture may nevertheless be
more closely related to Manzonia than to
Alvania s. str. More independent charac-
ters, including those based on molecular
sequences, are needed to assess the
value of this morphological character to
be held as diagnostic of Manzonia.
MOOLENBEEK R.G. AND HOENSELAAR H.J. 1989.
The genus Alvania on the Canary Islands and
Madeira (Mollusca, Gastropoda) part 1. Bul-
letin, Zoólogisch Museum, Untversiteit van Am-
sterdam, 11 (27): 215-228.
OLIVERIO M. 1994. Developmental vs. genetic
variation in two Mediterranean rissoid com-
plexes. Journal of Molluscan Studies, 60: 461-
465.
OLIVERIO M. 1996. Contrasting developmental
strategies and speciation in N.E. Atlantic
prosobranchs: preliminary analysis. En: Ori-
gin and evolutionary radiation of the Mollusca
(Taylor, J. ed.), Oxford University Press, pp.
261-266.
PONDER W. 1985. A review of the genera of the
Rissoidae (Mollusca: Mesogastropoda: Ri-
ssoacea). Records of the Australian Museum,
supplement 4: 1-221.
ROLÁN E. 1987. El género Manzonia Brusina,
1870 en el Archipiélago de Cabo Verde. Pub-
licagoes Ocasionais da Sociedade Portuguesa de
Malacología, 9: 27-36.
ROLÁN, E. 1987. Aportaciones al estudio de
los Risoaceos de las Islas Canarias: I. Des-
cripción de tres especies nuevas. Publi-
cacóes Ocasionais da Sociedade Portuguesa de
Malacología, 8: 1-4.
95
Iberus, 28 (1), 2010
ROLÁN E. AND FERNANDES F. 1990. Tres nuevas VAN AARTSEN J.J. 1981. Manzonia overdiepi, a
especies del género Manzonia (Mollusca, new marine gastropoda (Rissoidae) from Ca-
Gastropoda) para la costa occidental de nary and Madeira Is. La Conchiglia, 15 (168-
Africa. Publicacoes Ocasionais da Sociedade Por- 169): 6-7.
tuguesa de Malacología, 15: 63-68.
SEGERS W. AND SWINNEN F. 2002. Manzonia ba-
calladoi, a new species from the Madeiran ar-
chipiélago. Gloria Maris, 40 (6): 120-125.
96
O Sociedad Española de Malacología —__——— Iberus, 28 (1): 97-114, 2010
Notes on the benthic macrofauna of Agadir Bay (Atlantic
Morocco)
Datos sobre la macrofauna bentónica de la Bahía de Agadir
(Marruecos Atlántico)
Abdellatif MOUKRIM*, José Enrique GARCÍA RASO** and Serge GOFAS**
Recibido el 16-IV-2010. Aceptado el 30-IV-2010
ABSTRACT
The macrofauna collected in 25 dredge hauls from subtidal soft bottoms [6-25 m) in
Agadir Bay, Southern Morocco, is listed. Seventy species are identified, chiefly Mollusca
but also some decapods, echinoderms, and polychaetes. The results show four main
assemblages with a similarity above 50%. The community of soft bottoms is quite homoge-
neous within the bay and is comparable to the community of fine sands with Chamelea
striatula - Mactra corallina as described by Glémarec (1969, 1973) and with the shallow
well calibrated fine sandy bottoms (SFBC) or “terrigenous” fine sandy bottoms (Pérés and
Picard 1964; ledoyer, 1968). Towards the deeper part there is an increase of Ophiura
texturata together with an increase in mud content. Á more significantly different commu-
nity is associated to bottoms with rocks in the northern part of the bay. Almost half of the
species identified belong to the temperate European (Atlanto-Mediterranean) faunal
province whereas one quarter belong to the tropical West African province. Despite the
modest sampling effort, there are five species of molluscs [Nassarius goreensis, N. argen-
teus, Cuna gambiensis, Tellina rubicincta, Pandora oblonga) new to the Moroccan fauna,
indicating the need for a more thorough survey in the area.
RESUMEN
Se presenta una lista de las especies de la macrofauna recolectada en 25 dragados en
fondos blandos sublitorales (6-25 m) de la Bahía de Agadir, Sur de Marruecos. Se identifi-
caron 70 especies, principalmente moluscos, pero también decápodos, equinodermos y
poliquetos. Los resultados de este estudio muestran cuatro grupos de especies con una
similitud superior al 50%. La comunidad de fondos blandos es bastante homogénea den-
tro de la bahía y se corresponde con la comunidad de arenas finas con Chamelea striat-
ula - Mactra corallina descrita por Glémarec (1969, 1973) y con la de arenas finas bien
calibradas poco profundas (SFBC) o arenas finas terrígenas [Péres and Picard 1964;
Ledoyer, 1968). Hacia la parte más profunda se aprecia una mayor abundancia de
Ophiura texturata, así como un incremento de la proporción de fango. La comunidad más
diferente se encuentra en un fondo con rocas en la parte norte de la bahía. Aproximada-
mente la mitad de las especies pertenecen a la provincia faunística europea templada
(Atlanto-Mediterránea) y cerca de una cuarta parte a la provincia tropical del Oeste
Africano. A pesar de lo limitado del muestreo, se citan cinco especies de moluscos nuevas
para la fauna de Marruecos (Nassarius goreensis, N. argenteus, Cuna gambiensis, Tellina
rubicincta, Pandora oblonga), lo que pone de manifiesto la necesidad de una prospec-
ción más intensa en este área.
* Laboratoire Eaux et Environnement, Faculté des Sciences, B.P. 28S, Agadir (Morocco).
** Departamento de Biología Animal, Facultad de Ciencias, E-29071 Málaga (Spain).
37
Iberus, 28 (1), 2010
INTRODUCTION
The benthic fauna of the Atlantic
coast of Morocco is known quite ade-
quately for bathyal environments
sampled by deep-sea expeditions (see
review in SALAS, 1996 and GARCÍA RASO,
1996) or for the intertidal communities
accessible from the shore. The subtidal
environments in between have received
little attention and their species compo-
sition remains largely unknown. Previ-
ous data are mainly based on a sam-
pling programme conducted in the
years 1924-1925 with the trawler
“Vanneau”, following the foundation of
the Institut Scientifique Chérifien,
Morocco's Natural History Museum in
1923 (LIOUVILLE, 1930). However, only a
small part of the material obtained was
eventually studied.
The geographical situation of the
Bay of Agadir falls mid-way within the
so-called “Mauretanian region” of
EKMAN (1953). Thus, it is important to
determine how much of its fauna
belongs to the European temperate
province, as does most of Atlantic
Morocco, and how much belongs to the
tropical West African province. The bay
marks the end to the north of a very
long stretch of coastline with a broad
shallow continental shelf clad with sedi-
ments, and bordered by long, straight
sandy beaches exposed to heavy surf.
Northwards, Cape Ghir sets a sharp
physiographic limit to a predominantly
rocky shore with a narrow platform; a
comparable sandy shore resumes only
much further to the north along the
coastal plains of Bouregreg and Sebou in
Northern Morocco. Thus, this physical
boundary may contribute to sharpen the
northwards boundary of any West
African elements likely to occur in the
area. The area of Agadir is also coinci-
dent with a major area of upwelling
(MITTELSTAED, 1983), which makes it
potentially species-rich.
The growing concern for conserva-
tion and control of water quality has
triggered new interest for the benthos in
nearshore environments close to the
large urban agglomeration of Agadir.
98
The purpose of this paper is to present
some results regarding the benthic
macrofauna (chiefly Mollusca and
Decapoda) of the soft bottoms which
constitute most of the bay, and to draw
some preliminary conclusions regarding
benthic communities and their biogeo-
graphic setting.
MATERIAL AND METHODS
A set of samples (Figure 1) was col-
lected in May 1999, using a rectangular
dredge with an opening of 50 cm,
geared with a net of 10 mm mesh. The
dredge was towed by a boat at a speed
of approximately one knot, for 15
minutes, parallel to shore at each posi-
tion on a transect. Three transects were
sampled perpendicular to shore, in the
vicinity of Oued Souss, which was the
target area for an environmental impact
study, and within each transect four
samples were taken at 10, 15, 20 and 25
m depth. Two other transects and some
samples were taken with the same gear
at the northern end of the beach (D),
inside the harbour (E), and in front of
the suburb of Anza (FE), just northwest to
the harbour. In each of the transects D
and E, samples were taken, at 6, 10, 15,
20 and 25 m. Samples were sorted
immediately upon return to the lab, and
the animals preserved in 70” ethanol for
further determination.
The literature used for species iden-
tification was not specific to the area.
The fauna of both Western Europe and
West Africa has been considered.
PASTEUR HUMBERT (1962a, b), POPPE AND
GOTO (1991, 1993) and the unpublished
manuscript on West African Bivalvia by
Rudo von Cosel (MNHN) were the basic
references for the Mollusca; MONOD
(1956), FOREST AND GANTES (1960) and
ZARIQUEY ÁLVAREZ (1968), among others
for the decapods, TORTONESE (1965) for
the echinoderms. The polychaetes were
identified by Patrick Gillet (of Institut
d'Ecologie Appliquée, Angers, France).
Sediment samples were taken by
SCUBA diving along the three transects
of Oued Souss (A: 30” 18' N, B: 30” 20” N
MOUKRIM ET 42.: Notes on the benthic macrofauna of Agadir Bay (Atlantic Morocco)
CES E
S.v 20,
P* d'Anz
29
Transect F
28 24
19
1
Transect Cf 22 0d g
S.v.R hs
nn] DEAN EA
AAA a] PE AA a]
Bag ea EA] PAE JA 20 PJ JS (O CA RA O A A E DUE JE FE FE JE JE A E JA A SC E FA E (O A PA A a REO FA A IO LA A DA
h 25 dl
pS Transect B e ,
3
4
] y 46
li $0 Transect A )
ñ Ñ E
9%40'
A A A DEA El VR IA E E A A E A E E A A A A E 10 ER A A E RS PR O E E TE E (A
7 . TA "DNS
1 A Z
E.r.20(6s)Vis 8Mj5=..
'Trompett
TransectE|* |, ese
22 ¿
j
R an de
22 Transect D 18
24 :
25 ?
Ñ
1 py -3
nn —HE_ ——_ 5 5 ¿e
TE. CA AA A
PAS A A
3025
Figure 1. Map of the Bay of Agadir, with location of the sampling stations.
Figura 1. Mapa de la bahía de Agadir, con la ubicación de las estaciones de muestreo.
and C: 30” 22” N), in order to determine
granulometry using a column of stan-
dard sieves.
PRIMER software (CLARKE AND
WARWICK 1994, CLARKE AND GORLEY,
2001) was used in the study of the struc-
ture of the communities and their
spatial variations using qualitative data
without transformation and standard-
ization. Possible significant differences
between transects and depths were
assessed using the ANOSIM routine.
Samples were grouped according to
their faunal composition using the Bray-
Curtis similarity index. In the cluster the
mode group average was selected. The
samples were then plotted with a non-
metric multidimensional scaling (MDS
routine) and, to know the level of contri-
bution of the different species, the
SIMPER routine was applied.
RESULTS
The list of all collected species
amounts to 70 (Table I). There is an
increase in species richness with dis-
tance from shore. Molluscs and
decapods are the best represented
groups, whereas polychaetes probably
were undersampled due to the kind of
dredge used, which skims the superfi-
cial part of the sediment.
The sediments are essentially fine
sands in transects A and C (range of
median 0.17-0.32 mm). The pelite
content is very low nearshore and
97
Iberus, 28 (1), 2010
Table I. List of species collected in the dredgings. The * denotes species shared with “sables fins a
Venus gallina - Mactra corallina” and “sables fins envasés 4 Pharus legumen - Ophiura texturata” or
denoted as characteristic of fine sand communities by Glemarec (1969). W: West african species.
The abundance of species is coded (1) 1-2 specimens, (2) 3-5 specimens, (3) 6-10 specimens, (4)
over 10 specimens.
Transect 302 18' N Transect 302 20' N
depth (m) AO OS
MOLLUSCA GASTROPODA
Bela sp.
Bivetiella cancellata (Linné, 1758) W Za]
Bullia miran (Bruguiére, 1792) W A eS DA
Calyptraea chinensis (Linné, 1758)
Clanculus kraussi (Philippi, 1846)
Cabestana dolaria (Linné, 1767)
Cymbivm cucumis Róding, 1798
Epitonium turtonis (Turton, 1819)
Euspira fusca (de Blainville, 1845) l
Euspira pulchella (Risso, 1826) l
Marginella glabella (Linné, 1758) W
Mesalia varia (Kiener, 1844) W DES |
Mitrello sp. l
Nassarius argenteus (Marrat, 1877) W
Nassarius elatus (Gould, 1845) W Mal vaa]
Nassarius goreensis (von Maltzan, 1884) W
Nassarius incrassatus (Stróm, 1768)
Nassarius reticulatus (Linné, 1758) AO
Nassarius vaucheri (Pallary, 1906) W l l l
Ocenebra brevirobusta Hovart, 2000
Philine aperta (Linné, 1758) l
Stramonita haemastoma (Linné, 1758)
Solatia piscatoria (Gmelin, 1791) W
Tectonatica sagraiana (d'Orbigny, 1844) W l
Volvarina sp. W
===
MOLLUSCA BIVALVIA
Anomia ephippium (Linné, 1758) l
Abra alba (Wood, 1802) E Il ad: la
Chamelea striatula (da Costa, 1778) bl |
Corbula gibba (Olivi, 1792) 2 2
Cuna gambiensis Nicklés, 1955 W
Donax vittatus (da Costa, 1778) ss 2
Dosinia lupinus (Linné, 1758) E (a |
Ensis ensis (Linné, 1758)
Gari fervensis (Gmelin, 1791)
Macoma cumana (Costa, 1829) st |
Mactra coralina (Linné, 1758) ÉS l Zap dE
100
MOUKRIM £7 4Z.: Notes on the benthic macrofauna of Agadir Bay (Atlantic Morocco)
Tabla 1. Lista de especies recolectadas en los dragados. El * indica especies que se han citado para las
comunidades denominadas “sables fins a Venus gallina - Mactra corallina” y “sables fins envasés a
Pharus legumen - Ophiura texturata”, o indicadas como características de comunidades de arena fina
por Glemarec (1969). W: Especies Oeste-Africanas. La abundancia de las especies esta anotada como (1)
1-2 ejemplares, (2) 3-5 ejemplares, (3) 6-10 ejemplares, (4) más de 10 ejemplares.
Tronsect 302 22' N North of Beach Harbour Off Anza
IAS A IS Orba E
2
l l
A E IAE AN 4] O A O E
l l
la l
l
|
1
l
¡A
| de A E 4 2 DS
|
l ]
2 l 3 3 | 24 24
74
4 2 EA
e AA LA IE O e ROS OS
l 4 4 1 l
Z
l
l
1 1 l
l (A
2
In 1
157008] lia A 4 3 DA
1 do DEL AI LL
2 | A
l
l dial 1 4 aaró
Es] 2 4 ls
l 1 l | A
l
Ica l 4
2 1 l 1 DS MA]
101
Iberus, 28 (1), 2010 MOUKRIM £7 AL.: Notes on the benthic macrofauna of Agadir Bay (Atlantic Morocco)
?
Table 1. List of species collected in the dredgings. The * denores species shared with “sables fins á Tabla 1. Lista de especies recolectadas en los dragados. El * indica especies que se han citado para las
Venus gallina - Mactra corallina” and “sables fins envasés a Pharus legumen - Ophiura texturata”. or comunidades denominadas "sables fins a Venus gallina - Mactra corallina” y “sables fins envasés á
denoted as characteristic of fine sand communities by Glemarec (1969). W: West african species. Pharus legumen - Ophiura texturata”, o indicadas como características de comunidades de arena fina
The abundance of species is coded (1) 1-2 specimens, (2) 3-5 specimens, (3) 6-10 specimens, (4) por Glemarec (1969). W: Especies Oeste-Africanas. La abundancia de las especies esta anotada como (1)
over 10 specimens. | 1-2 ejemplares, (2) 3-5 ejemplares, (3) 6-10 ejemplares, (4) más de 10 ejemplares.
Transect 30* 18' N Transect 302 20' N | Tronsect 30* 22' N North of Beach Horbour Of Anza
depth (m) 10 15 20 25 10 15 20 25 9 10 15 20 25 6 10 15 20 25 6-6 6 10 15 20 25
MOLLUSCA GASTROPODA ,
Belo sp. 2
Bivetiello concelloto (Linné, 1758) W 2 ? l 1
Bullio miran (Bruquiere, 1792) W E PA E, E 4 3 4 2.4. 4 2 4 1 4.1 1 2 4
Colyptroeo chinensis (Linné, 1758) ) 1 1
Clonculus kroussi (Philippi, 1846) W | 2 1
Cobestono doloria (Linné, 1767) W ? 1
Cymbium cucumis Róding, 1798 W 1 |
Epitonium turtonis (Turton, 1819) p 1
Euspiro fusca (de Bloinville, 1845) 1 1
Euspira pulchella (Risso, 1826) 1 ) 1
Morginello globello (Linné, 1758) W | 1
Mesolia varia (Kiener, 1844) W 2.4 3 1 y 25 4 4 1 1.5405 4 2 3 2
Mitrello sp. 1 1
Nossarius orgenteus (Morrot, 1877) W h 1 1
Nossorivs elotus (Gould, 1845) W A | JA 2 1 3 3 110.4.4
Nossorivs goreensis (von Maltzon, 1884) W j 2
Nassorivs incrassatus (Stróm, 1768) 4 2 META
Nossarius reficulatus (Linné, 1758) LA] 3.41 2 4 4 4 2 3 4
Nossorius voucheri (Pollary, 1906) W 1 1 p 1 4 4 1 1
Ocenebra brevirobusta Hovort, 2000 2
Philine aperto (Linné, 1758) 1 ' 1
Stramonita hoemastomo (Linné, 1758) 1
Solo piscotorio (Gmeln, 1791) " PA 2 ?
Tectonotico sagraiona (d'Orbigny, 1844) W 1 1 1.1
Volvarina sp. W A 2
MOLLUSCA BIVALVIA 1
Anomia ephippivm (Limné, 1758) 1 | 1 1 1
Abro olbo (Wood, 1802) E A A 3 1 A 4 3 WT
Chomeleo striatula (da Costo, 1778) E 1 | a | DAA
Corbulo gibbo (Olivi, 1792) 2 2 a 2 12 1óe-4
Cuno gombiensis Nicklés, 1955 W | 1
Donox vittotus (da Costo, 1778) E 2 1 1 yA 1 4 de]
Dosinia lupinus (Linné, 1758) * ATA 1 | 1057] 2 4 1
Ensis ensis (Linné, 1758) á » 1 1 1 1 dei
Gori fervensis (Gmelin, 1791) ] 1
Mocomo cumnano (Costo, 1829) 1041 1 ' 1 1 4
Macro coralina (Lim, 1758) * 1 22 ñ 2 : ( 1 2.3 Dei
100 101
Iberus, 28 (1), 2010
Table I. Continuation.
Tabla I. Continuación
Modiolus stultorum (Jousseaume, 1893) W (ne
Transect 30% T8”N Transect 30% 20"N
depth (m) O lo 200 925 A
Nuculana bicuspidata (Gould, 1845) W 3 1
Pandora oblonga (Sowerby, 1830) W
Pandora inaequivalvis (Linné, 1758) 1 l
Parvicardium exiguum (Gmelin, 1791)
Pharus legumen (Linné, 1758) de O E, AM TON
Phaxas pellucidus (Pennant, 1777) dx l
Scacchia zorni van Aartsen 8. Fehr-de Wal, 1985
Sinupharus combieri (Fischer-Piette 8. Nicklés, 1946) W
Spisula subtruncata (da Costa, 1778) á l l
Tellina tenvis (da Costa, 1778) Ís 1
Tellina rubicincta Gould, 1845 W l
Tellina fabula Gmelin, 1791 ES A MecoAN]
Thracia papyracea (Poli, 1791) ña ]
Thyasira flexuosa (Montagu, 1803) 2
MOLLUSCA CEPHALOPODA
Sepietta oweniana (d'Orbigny, 1839) 2
Sepiola rondeleti Leach, 1817 2
CRUSTACEA DECAPODA
Diogenes pugilator (Roux, 1829) ñ 3 3 4
Liocarcinus cf. holsatus (Fabricius, 1798) E LAS AAA
Liocarcinus depurator (Linné, 1758)
Macropodia rostrata (Linné, 1761) 2
Philocheras trispinosus (Hailstone, 1835) á Sl
Polybivs henslowii Leach, 1820 1 |
Scyllarus arctus (Linné, 1758) 1
PYCNOGONIDA
Nymphon sp. l
ECHINODERMATA
Echinocardium sp. l
Ophivra texturata Lamarck, 1816 ; 40 5d l AA
ANNELIDA POLYCHAETA
Cirratulus filiformis Keferstein, 1862
Diopatra neapolitana Delle Chiaje, 1841 IA LL
Lugia pterophora (Ehlers, 1864)
Magellona papillicornis Miller, 1858
Nepthys sp l
102
MOUKRIM £7 42.: Notes on the benthic macrofauna of Agadir Bay (Atlantic Morocco)
Table I. Continuation.
Tabla I. Continuación
ranse 3
10
arbour z0
CAOS OS
Ii MD SA
OS
3
lol l ¡dl
l
Al E PA
3 IP
2
LAO l
4
3
4 A AN
2
l
19]
O
l
la A O
l
280 de]
103
Iberus, 28 (1), 2010 MOUKRIM £7 AZ.: Notes on the benthic macrofauna of Agadir Bay (Atlantic Morocco)
Table I. Continuation. e Table I. Continuation.
Tabla I. Continuación | Tabla I. Continuación
|
Modiolus stultorum (Jousseaume, 1893) W A '
Trance 30r TEN Tromsed SO ZO | —Trnsed SONT Ñ Nor of Beach Harbour UA
depth (m) 10 15 20 25 10 15 20 25 | 10 15 20 25 6 10 15 20 25 6 6» 6 10 15 20 25
Í
>
Nuculona bicuspidata (Gould, 1845) W 3 1 1.41] DL AA
Pandora oblongo (Sowerby, 1830) W » 4
Pandora inaequivalvis (Linné, 1758) 1 1 | 1 4.43 1
Porvicordium exiguum (Gmelin, 1791) » 3
Phorus legumen (Linné, 1758) * IAEA IZ | A INIA 11 1 O
Phoxos pellucidus (Pennont, 1777) ú l )
Scocchia zomi von Aortsen 8. Fehr-de Wal, 1985 | 1 1
Sinuphorus combieri (FischerPiette 8. Nickles, 1946) W i 1
Spisulo subtruncato (da Costa, 1778) si 1 1 | 201 4 1 A
Tellino fenvis (da Costo, 1778) $ 1 ( 2 3 1423
Tellina rubicincto Gould, 1845 W 1 P
Tellino fobulo Gmelin, 1791 á 201 1 | 1 1 1 AA] 1
Thracio popyracea (Poli, 1791) Ed 1 Ñ 2 2 4
Thyosira flexuoso (Montagu, 1803) 2 '
MOLLUSCA CEPHALOPODA |
Sepietta oweniana (d'Orbigny, 1839) 2 p
Sepiolo rondeleti Leach, 1817 2 |
,
CRUSTACEA DECAPODA
Diogenes pugilotor (Roux, 1829) > 3 3 4 ? 4 3 2 3
Liocorcinus ct. holsatus (Fabricius, 1798) dl ES) LANA | MEN EA | 4 SI 2
Liocarcinus depurator (Linné, 1758) » 2
Mocropodia rostrato (Limné, 1761) 2 | 1 0)
Philocheras trispinosus (Hailstone, 1835) * Sl ? PEA
Polybivs henslowii Leach, 1820 1 1 1 al 11 1
Seyllarus arctus (Linné, 1758) 1 E
|
PYCNOGONIDA ?
Nymphon sp. 1 |
ECHINODERMATA h
Echinocordium sp. 1 y 1 Deal
Ophiura texturata Lamorck, 1816 4 4 1 4 4 | 4 4 DAA 2 4
ANNELIDA POLYCHAETA h
Cirratulus filiformis Keferstein, 1862 Ú 1
Diopatra neapolitana Delle Chioje, 1841 AAA MIA | 1 304 1 3 TEN VA SES
Lugia pterophora (Ehlers, 1864) 1
Mogellono popillicornis Miller, 1858 2 1
Nepthys sp 1 A]
>
102 103
D- A
Iberus, 28 (1), 2010
Figure 2 A-E. Gastropods from Agadir Bay. A: Nassarius vaucheri (Pallary, 1901), Agadir beach, 6
m (height 12 mm); B: Nassarius argenteus (Marrat, 1877), inside harbour, 15 m (height 7.4 mm);
C: Nassarius reticulatus (Linné, 1758), Agadir beach, 6 m (height 16 mm); D: Nassarius goreensis
(von Maltzan, 1884), off Anza, 20 m (height 9.3 mm); E: Bela cf. zonata (Locard, 1892), Agadir
beach, 6 m (height 10.5 mm). Figure 2 E Decapod Crustacean: Liocarcinus cf. holsatus (Fabricius,
1798), off Oued Souss, 15 m (breadth of carapace 36 mm).
Figura 2 A-E. Gasterópodos de la bahía de Agadir. A: Nassarius vaucheri (Pallary 1901), playa de
Agadir, 6 m (altura 12 mm); B: Nassarius argenteus (Marrat, 1877), en el puerto, 15 m (altura 7,4
mm); C: Nassarius reticulatus (Linné, 1758), playa de Agadir, 6 m (altura 16 mm); D: Nassarius
goreensis (von Maltzan, 1884), frente a Anza, 20 m (altura 9,3 mm); E: Bela cf. zonata (Locard,
1892), playa de Agadir, 6 m (altura 10,5 mm). Figura 2 E Crustáceo Decápodo: Liocarcinus cf. hol-
satus (Fabricius, 1798), frente al Oued Souss, 15 m (ancho del caparazón 36 mm).
increases to ca. 10% at 20 m. The values
in transect B, under the influence of
Oued Souss, show a higher content of
pelites at shallower depths (up to 30% at
10 m depth). The northernmost tran-
sects, off the harbour and E contain also
some rocky outcrops.
104
Taxonomic and biogeographic
notes on some species
MOLLUSCA GASTROPODA
Family Turritellidae
Turritellids are represented by one
species of Mesalia, the same one that
extends northwards to the Ibero-Moroc-
MOUKRIM £7 4Z.: Notes on the benthic macrofauna of Agadir Bay (Atlantic Morocco)
YN 5
5 »)
Figure 3. Cuna gambiensis Nickles, 1955 from Agadir Bay, Loa “Vanneau” sta. 118 (309 40” N,
090 55" W, 20 m). A: Outside view of the left valve of a live-collected specimen; note the hydro-
zoan on posterior edge (actual height of shell 3.0 mm). B. inside view of the same valve with dried
soft parts inside, note the four juveniles in prodissoconch stage incubated in the pallial cavity. C-
D. Inside of left and right valve of another specimen (actual size 2.9 mm).
Figura 3. Cuna gambiensis Vickles, 1955 de la bahía de Agadir, campaña del “Vanneau” est. 118 (30%
40" N, 09 55" W 20 m). A: Vista externa de la valva izquierda de un ejemplar recolectado vivo; nótese el
hidrozoo asentado en el borde posterior (altura de la concha 3,0 mm); B: vista interna de la misma valva
con partes blandas desecadas; nótense los cuatro juveniles en estadio de prodisoconcha, incubados en la
cavidad paleal. C-D. interior de las valvas izquierda y derecha de otro ejemplar (altura 2,9 mm).
can Gulf and to the Alboran Sea and
southwards to Senegal. There has been
considerable confusion regarding the
taxonomy of this species, often misiden-
tified as the Senegalese endemic Mesalia
brevialis (Lamarck, 1822) (e.g. PASTEUR-
HUMBERT, 1962a: 39). We agree with
PALLARY (1900) and MARCHE-MARCHAD
(1981) in considering that this is a dis-
tinct species, correctly named Mesalia
varia (Kiener, 1844).
Family Nassariidae
This family is represented in our
material by seven species, of which two
are new to the Moroccan fauna. Nas-
sarids are well represented in West
Africa (see Adam and Knudsen, 1984)
and are mostly scavengers. Bullia miran
is one of the largest species and is a con-
spicuous element of the assemblage. It is
a West African species, already men-
tioned from Agadir Bay by PALLARY
(1920: 37, as Dorsanum miran) and
PASTEUR-HUMBERT (1962a).
Nassarius vaucheri (Fig. 2A) and Nas-
sarius argenteus (Fig. 2B) are two very
similar species, the former endemic to
the Ibero-Moroccan gulf and the latter
West African, which could be suspected
of being geographical subspecies one of
the other. The occurrence at Agadir of N.
argenteus documents a range extension
into Morocco, and supports their treat-
ment as separate species.
Nassarius goreensis (Fig. 2D) is also a
West African species new to the Moroc-
can fauna. Besides this occurrence, there
are occasional findings as far north as
Asilah and Tangiers (36” N; specimens
in Muséum National d'Histoire
Naturelle, Paris, collected by S.G.).
Nassarius reticulatus (Fig. 2C) con-
versely, is a member of the temperate
West European fauna which reaches
here its southern limit.
Family Muricidae
Ocenebra brevirobusta is a Moroccan
endemic, formerly identified as Ocenebra
torosa (Lamarck, 1816) or Ocenebra eri-
naceus (Linné, 1758) (see PALLARY, 1920;
PASTEUR-HUMBERT, 1962a). HOUART
(2000) described it as a new species,
from material collected at Essaouira,
some 100 km north of Agadir.
Family Turridae
There is one species of Bela (Fig. 2E)
which resembles both morphologically
1109
Iberus, 28 (1), 2010
Figure 4 A-F. Bivalves from Agadir Bay. A, B: Macoma cumana (Costa, 1829), right valve, South of
Oued Souss, 15 m (length 20 mm); C, D: Tellina rubicincta Gould, 1845, right valve, off Anza, 25
m. (length 22 mm); E, F: Donax vittatus (da Costa, 1778), left and right valves, off Anza, 10 m
(length 21 mm).
Figura 4 A-E Bivalvos de la bahía de Agadir. A, B: Macoma cumana (Costa, 1829), valva derecha,
sur de Oued Souss, 15 m (longitud 20 mm); C, D: Tellina rubicincta Gould, 1845, valva derecha,
frente a Anza, 25 m. (longitud 22 mm); E, F: Donax vittatus (da Costa, 1778), valvas izquierda y
derecha, frente a Anza, 10 m (length 21 mm).
and in habitat the Mediterranean species
Bela zonata (Locard, 1892), but there is
such confusion in the species-level tax-
onomy of European Bela that we prefer
not to venture a specific name.
MOLLUSCA, BIVALVIA
Family Condylocardiidae
Cuna gambiensis (Fig. 3) is a small
bivalve living in algal turf and thus
linked to hard bottom. A few specimens
106
were collected in the transect off Anza,
but there are many specimens from
Agadir collected in the years 1920 by G.
Dollfus with R/V “Vanneau” (unpub-
lished material in Muséum National
d'Histoire Naturelle, Paris). This is a
tropical West African species, new to the
Moroccan fauna. Live-taken specimens
showed a small hydrozoan growing on
the posterior edge of the valve, and, like
other species of the Condylocardiidae
MOUKRIM £7 42.: Notes on the benthic macrofauna of Agadir Bay (Atlantic Morocco)
Figure 5 A-D. Pandora spp. from Agadir Bay. A-B: Pandora inaequivalvis (Linné, 1758), Agadir
beach, 6 m (length 24 mm); C-D: Pandora oblonga (Sowerby, 1830), Agadir beach, 6 m (length 14
mm).
Figure 5 A-D. Pandora spp. de la bahía de Agadir. A-B: Pandora inaequivalvis (Linné, 1758), Agadir
beach, 6 m (length 24 mm); C-D: Pandora oblonga (Sowerby, 1830), Agadir beach, 6 m (length 14 mm).
(SALAS AND ROLÁN, 1990; SALAS AND
COSEL, 1991) it was found brooding
juveniles.
Family Pharidae
The sand-dwelling razor shells are
represented by four species. It is note-
worthy that the genus Ensis, represented
by three species in comparable sandy
beaches of the Ibero-Moroccan Gulf, is
here only represented by the smaller
(and usually rarer) Ensis ensis. The West
African Sinupharus combieri was already
recorded (BELLON-HUMBERT, GLÉMAREC
AND GOFEAS, 1975), but the record of the
European Phaxas pellucidus is a range
extension, the known southern limit
being Tangiers.
Family Tellinidae
Macoma cumana (Fig. 4A-B) has its
type locality in the Western Mediter-
ranean and is reported to have a West
African range (von Cosel, unpublished
data), but its distribution is quite puz-
Zling, being replaced in the Alboran Sea
by the very similar Macoma melo
(Sowerby, 1866). The West African
species Tellina rubicincta (Fig. 4C-D) is
new to the Moroccan fauna, the previ-
ously known northern limit being in
Mauritania (DAUTZENBERG, 1910). It
strongly resembles the European T. dis-
torta Poli, 1791 but is larger, slenderer
and with more distinct comarginal
lamellae towards the posterior end.
Family Donacidae
Donax vittatus was quite frequent in
the sandy bottom of the shallower part
of the transects. The specimens from
Agadir (Fig. 4E-F) resemble the Mediter-
ranean D. venustus (Poli, 1791) in having
sometimes three broad radial bands, but
should be assigned to D. vittatus on the
basis of having striae which are not
restricted to the part of the shell
between the posterior angle and the
posterior margin. The relationships of
these species are still unsettled (TIRADO
AND SALAS, 1999).
Family Veneridae
BACKELJAU, BOUCHET, GOFAS AND DE
BRUYN (1994) have shown that the
Atlantic populations formerly called
107
Iberus, 28 (1), 2010
Venus gallina correspond to Chamelea
striatula, whereas the real Chamelea
gallina is restricted to the Mediterranean
and southwestern Iberian Peninsula.
This is an important point because the
Atlantic species is the eponym of
“sables fins a Venus gallina-Mactra coral-
lina” of GLEMAREC (1969), to be cor-
rected as Chamelea striatula-Mactra coral-
lina. lt is noteworthy that C. striatula is
displaced towards more muddy facies
where both species are sympatric,
whereas, on the European West coast, it
occupies facies of fine sand which are
similar to the biotope of C. gallina in the
Mediterranean.
Family Pandoridae
The shallow samples of the Agadir
beach yield, in the same habitat, both
the European Pandora inaequivalvis (Fig.
3D), here at its southern limit (range
extension, previously known only from
Essaouira northwards) and the West
African P. oblonga (Fig. 3E), which is
here recorded as new to the Moroccan
fauna. Pandora oblonga is smaller, has a
distinctly more convex left valve and
more concave right valve, and is less
rostrated posteriorly.
CRUSTACEA, DECAPODA
The genus Diogenes (Diogenidae) is
represented in West Africa by a species
complex (FOREST, 1961), but examina-
tion of the very large sample from
Agadir bay suggests that only one
species, D. pugilator, is present. The
genus Liocarcinus (Portunidae) is repre-
sented by two species, the widespread
L. depurator, and another one of doubtful
identification (Fig. 2F), tentatively
assigned to L. cf. holsatus, although the
contour of the carapace resembles some-
what the Mediterranean L. vernalis
(Risso, 1826). Nevertheless, specimens
from Agadir lack the characteristic
velvety surface of the latter. Material
from intermediate localities on the
Moroccan coast is needed to decide
whether this is a geographical variation
of one of these two European species, or
if a third species must be considered.
However, this group of species is in
108
revision (d'Udekem d'Acoz personal
communication).
ANNELIDA: POLYCHAETA
There is a species of the genus Diopa-
tra (family Onuphidae) which is abun-
dant in all the transects of the bay. This
may be D. marocensis, described from
similar bottoms south of Safi (PAXTON,
FADLAOUI AND LECHAPT, 1995). The
number of Polychaete species in the
samples is low, but this may be a bias
due to our sampling gear which does
not dig deeply into the sediments.
Characterization of the assem-
blages
The results of the aggregation and
ordination analyses (MDS) using pres-
ence-absence data are shown in Figure
6, in which four main groups with a
similarity above 50% are defined (stress
value 0.18). The analysis of the grouped
“stations” by transect shows significant
difference (ANOSIM global test, p =
0.003), with highest values between the
F and the A, B and C transects (pairwise
tests, p = 0.008). In this way, the material
collected off Anza and inside the
harbour contain, in addition to the other
assemblages, several species normally
associated with rocky substrates.
Among these are Clanculus kraussi and
Nassarius incrassatus, found off Anza,
and Stramonita haemastoma, Ocenebra bre-
virobusta, and Cymatium doliarium col-
lected inside the harbour. The harbour
appears comparatively species-rich (34
species), which can result both from the
presence of hard substrates along the
piers, and from the shelter of the piers
which maintains low wave action.
Along the depth gradient a low sig-
nificance differences have been found
(ANOSIM Global test, p = 0,04).
A semi-quantitative analysis shows
similar results (by transects: global test,
p = 0.002), with highest values between
the F and the A, B and C transects (pair-
wise tests, p = 0.008); by depth: global
test, p = 0,01).
The average similarity within the dif-
ferent transects was around 40.1 (A) —
53.5% (E) (SIMPER) and between 9 (B) to
MOUKRIM £7 ALz.: Notes on the benthic macrofauna of Agadir Bay (Atlantic Morocco)
soft a
Stress: 0.18
A25
mixed with ES
hard bottoms
Figure 6. Multi-dimensional scaling (MDS) of the samples. The similarity matrix is based on pres-
ence/absence of the species and the Bray-Curtis similarity coefficient. The contours highlight
groups of samples which cluster with a similarity coefficient above 50%. The samples are identified
by a letter (A: radial of 30918"N, B: radial of 30920'N, C: radial of 30%22'N, D: North of Beach;
E: Harbour, E: off Anza), and their depth.
Figura 6. Ordenación multidimensional (MDS) de las muestras. La matriz de similitud esta basada en
la presencialausencia de las especies y en el coeficiente de similitud de Bray-Curtis. Los contornos señalan
grupos de muestras que se juntan con un coeficiente superior a 50%. Las muestras están identidficadas
por una letra (A: radial de 3018'N, B: radial de 3020'N, C: radial de 3022'N, D: Norte de la
playa; E: Puerto, EF: frente a Anza) y por su profundidad.
18 (F) species were necessary to get an
accumulative contribution of 90-92 %. By
depths, 10 (20m) to 14 (10 m) discrimi-
nating species are necessary to get a sim-
ilar accumulative contribution (higher
than 90%) with an average similarity be-
tween 35.3 (25 m) - 53.9% (15 m).
DISCUSSION
The species collected include some
well known as characteristic of fine
sands. The assemblages on soft bottoms
are quite comparable to those reported
by GLEMAREC (1969, 1973) from “sable
fin a Venus gallina - Mactra corallina” and
“sables fins envasés a Pharus legumen -
Ophiura texturata”, where many species
(denoted by * on Table I) are shared.
Some species collected here are
restricted to rather low latitudes so that
they have not been mentioned in any of
the classical works on benthic bionomy
Among these, Bullia miran, Nassarius
elatus and Mesalia varia are dominant
and should qualify as characteristic of
the fine sand or slightly muddy fine
sand communities at the latitude of
Agadir. The equivalence with the
109
Iberus, 28 (1), 2010
Mediterranean community of “sables
fins bien calibrés” SFBC (PÉRES AND
PICARD, 1964, AUGIER, 1982) or of “ter-
rigenous” fine sandy bottoms (Ledoyer,
1968) is not straightforward because of
these biogeographic differences, but
many of the characteristic Mediter-
ranean species are here replaced in the
Atlantic Morocco by ecological vicari-
ants: Nassarius mutabilis (Linné, 1758) by
Bullia miran, Nassarius pygmaeus
(Lamarck, 1822) by N. goreensis, Chame-
lea gallina (Linné, 1758) by C. striatula,
Tellina pulchella Lamarck, 1818 by T.
rubicincta and Neverita josephina Risso,
1826 by other Naticids. The same
happens with the decapods, because the
characteristic species of the SFBC com-
munity of the Mediterranean and south-
ern Spain are Diogenes pugllator,
Philocheras trispinosus and Liocarcinus
vernalis (PÉRES AND PICARD 1964,
LEDOYER, 1968, (GARCÍA MUÑOZ,
MANJÓN-CABEZA AND GARCÍA RASO,
2008) the latter replaced by L. cf. holsatus
in this study. Such habitats are listed
with very little detail, as sublittoral
sands (code A5.2) in the European
Nature Information System (EUNIS)
classification (DAvIES, MoOss AND
O'HILL, 2004).
The more differentiated assemblage
found is that associated with sand and
rocky substrate, which also shows the
highest specific richness as usual in
other areas (GARCÍA MUÑOZ ET AL,
2008).
The assemblages also respond to a
bathymetric gradient: towards the
deeper part of the transects, there is a
set of species that prefer slightly muddy
sands, the most noteworthy is Ophiura
texturata. Nevertheless, the community
is quite homogeneous along the shore,
even where facing the rocky area at
Anza. This can be explained by the very
flat topography of the sublittoral part of
the bay, in which the sandy bottom
swamps the rocky outcrops even north
of the harbour. Also, the mobility of the
macrofauna explains that some species
are found across several neighbouring
transects on the same kind of bottoms.
The same happens in sublittoral
bottoms of the Alborán Sea, where the
decapod assemblage of coarse sandy
bottoms (with high values of organic
material) presented practically the same
discriminating species as the neighbour-
ing assemblage of muddy fine sandy
bottoms, but with different quantitative
contribution of the species (GARCÍA
MUÑOZ ET AL, 2008).
A macrobenthic assemblage from
fine sand bottoms in a depth range 16-
40 m off Sidi Boulbra (31% 52 to 31* 58'
N, some 160 km northwards, in the
province of Safi), was described by FAD-
LAQUI (1994) in an environmental study
for a conventional thermic power plant.
This was assigned to “sédiments fin
plus ou moins envasés a Abra alba-
Diopatra brevicirris”, referring to a classi-
fication of benthic communities derived
from THORSON (1957), but is basically
similar to the assemblages referred
herein. We suspect that the unidentified
“terebrid” (FADLAOUL, 1994: 58) reported
there with a frequency of 80% is Bullia
miran, since there are no terebrids in
Morocco and shells of Bullia are mor-
phologically very terebrid-like.
Biogeographic notes
Among the 70 species collected, 20
(28.5 %) have a predominantly tropical
distribution and can be considered as
belonging to the West African zoogeo-
(Right page) Figure 7. Plot of the latitudinal ranges of the molluscan species known from Agadir
Bay, ordered by southern (0) and thence by northern (ME) distributional limits; ranges in the
southern hemisphere not shown and not taken into account for ordering.
(Página derecha) Figura 7. Representación de la extensión latitudinal de las especies conocidas en la
Bahía de Agadir, ordenadas por límite sur (0) y luego por limite norte (WM) de distribución; no se mues-
tran, ni se tienen en cuenta para la ordenación, las distribucuiones en el hemisferio sur.
110
80
BA IA UA PU AA UTA
MS
o
0)
E
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> = North Cape
9 '
S |
= |
+ p
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o +S. Norway
as |
ES
5 E
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E. 2 |
3 1) Bayof
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E = | Gibraltar
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== 59)
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o = a CapBlanc
E
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OS Dakar
E
kh
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5)
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2
10 20 30 40 50 60 70 80 90 100 110 120 130 140 150
Species
1
Iberus, 28 (1), 2010
graphic region. This percentage is consis-
tent with the general characterization of
the area, which belongs essentially to the
Atlanto-Mediterranean province of
EKMAN (1953). A survey of the shelled
Mollusca, for which good distributional
data are available, has been made using
the same unpublished dataset as in
GOFAS (1999) for latitudinal ranges (Fig.
7). There are ca. 150 species of molluscs
known from Agadir bay or from a stretch
of coastline which includes Agadir
(PALLARY, 1920, PASTEUR-HUMBERT,
1962a,b and this study). Among these, 85
(53%) are temperate Lusitanian species
which reach their southern limits at
Agadir (30 N) or at Cap Blanc (21*” N),
whereas 41 (26%) are West African
species which reach their northern limit
at Agadir, within Morocco or in the Ibero-
Moroccan Gulf (up to 36” N). The remain-
der are species with a broad temperate
and tropical range, some of which (e.g.
Venus verrucosa Linné, 1758) extend to
both hemispheres.
The tropical element, however, is
overrepresented among the Mollusca
from the soft bottoms (i.e. the three
southernmost transects). Among the 40
species collected, 15 (37.5%) belong to
the West African fauna. This trend is
particularly noteworthy among the gas-
tropods, there being 10 of 16 species
(62%) which are tropical. This may be a
consequence of the overwhelming
occurrence of soft bottoms along the
tropical West African coast, to which a
large number of species have become
adapted. Thus, soft bottom littoral com-
munities have a larger pool to draw
from to the South than to the North.
There are five species (Nassarius
goreensis, N. argenteus, Cuna gambiensis,
Tellina rubicincta, Pandora oblonga) which
are new to the Atlantic coast of Morocco
and also to the area covered by
BIBLIOGRAPHY
ADAM W. AND KNUDSEN J. 1984. Révision des
Nassariidae (Mollusca: Gastropoda Proso-
branchia) de l'Afrique Occidentale. Bulletin
de l'Institut Royal des Sciences Naturelles de
Belgique, 55 (9): 1-95, 5 pl.
112
CLEMAM (Check List of European
Marine Mollusca) and ERMS (European
Register of Marine Species, Costello et
al., eds. 2002) checklists. This is consid-
erable taking into account the compara-
tively small sampling effort and high-
lights the need for a more thorough
faunal survey of this area. The number
of recorded continental shelf species
(156 Mollusca) is also very low com-
pared to other areas (Roscoff, in the
Western Entrance of the English
Channel: 420 species; Strait of Gibraltar,
ca. 1000 species), and it can be specu-
lated that an accurate sampling should
at least duplicate this number.
AKNOWLEDGEMENTS
This work would not have been pos-
sible without RAMSA, the authority in
charge of water supply and sewage for
the Agadir urban area. We owe to the
collaboration of the authorities of the
Harbour of Agadir (ODEP) the possibil-
ity to use the towboat “Argoub” and the
pilot boat for the dredgings, and extend
our special thanks to the Captain for his
care in manoevring a very small dredge
with a very powerful boat. Special
thanks are also expressed to the
Muséum National d'Histoire Naturelle
(Laboratoire BIMM), Paris, of which the
extensive library and collections were
indispensable to this work. We are
indebted to Dr. Rudo von Cosel
(MNHN) for useful advice about the
bivalves and to Dr. Patrick Gillet (Uni-
versité d'Angers) for collaborating with
the determination of polychaete species.
We also thank Dr. Carmen Salas (Uni-
versity of Málaga) for her interesting
remarks and Pr. B. Moumni (Faculty of
Science, Tangiers) for help with the
granulometry of sediment.
AUGIER H. 1982. Inventatre et classification des bio-
cenoses marines bentiques de la Mediterranée.
Conseil de l'Europe, Collection Sauvegarde
de la Nature, 25 Estrasburgo, 59 pp.
MOUKRIM £7 42.: Notes on the benthic macrofauna of Agadir Bay (Atlantic Morocco)
BACKELJAU T., BOUCHET P., GOFAS S. AND DE
BRUYN L. 1994. Genetic variation, systemat-
ics and distribution of the venerid clam
Chamelea gallina. Journal of the Marine Biolog-
ical Association ofthe United Kingdom, 74: 211-
PS
BELLON-HUMBERT C., GLÉMAREC M. AND. GO-
FAS S. 1975. Cultellus combieri Fischer-Piette
et Nickles (Mollusca, Bivalvia), espece nou-
velle pour la faune atlantique marocaine.
Bulletin de la Société des Sciences naturelles et
Physiques du Maroc, 55: 91-93.
CLEMAM. Unitas Malacologica Check List of
European Marine Mollusca. Internet site [cur-
rent URL , last searched April 2010].
CLARKE K.R. AND GORLEY R.N. 2001. PRIMER
v5: User Manual/Tutorial. Primer-E, Plymouth.
91 pp. and computer software package.
CLARKE K. AND WARWICK R. 1994. Change in ma-
rine communities: An approach to statistical
analysis and interpretation. Natural Environ-
ment Research Council, Plymouth, U. K., 1-
150.
COSTELLO M., EMBLOW C. AND WHITE R. (EDS.)
2002. European Register of Marine Species.
A checklist to the marine species in Europe and
a bibliography of guides to their identification.
Muséum National d'Histoire Naturelle, Paris,
collection Patrimoines naturels, 50: 463 pp.
DAUTZENBERG P. 1910. Contribution a la faune
malacologique de l' Afrique Occidentale. Actes
de la Société Linnéenne de Bordeaux, 64: 47-220,
pl. 1-4.
DavIÉS C.E., Moss D. AND O'HILL 2004. EUNIS
Habitat classification revised 2004. European
Topic Centre on Nature Protection and Bio-
diversity, Paris. 307 p.
EKMAN 5. 1953. Zoogeography of the sea. Sidgwick
and Jackson, London, xiv + 417 pp.
FADLAOUI 5. 1994. Contribution a l'étude de la
structure et du fonctionnement des peuplements
benthiques de la cóte atlantique marocaine (Ré-
gion de Sidi Boulbra). Doctoral Thesis, Uni-
versité de Rennes-I, 1-188.
FOREST J. 1961. Paguridés de l'Afrique Occi-
dentale. Atlantide Reports, 6: 203-250.
FOREST J. AND GANTES H. 1960. Sur une collec-
tion de Crustacés Décapodes marcheurs du
Maroc. Bulletin du Muséum National d'His-
toire Naturelle, 2? sér, 32 (4): 346-358.
GARCÍA RASO J.E. 1996. Crustacea Decapoda
(Excl, Sergestidae) from Ibero-moroccan wa-
ters. Results of BALGIM-84 Expedition. Bul-
letin of Marine Science, 58 (3): 730-752.
GARCÍA MUÑOZ J.E., MANJÓN-CABEZA M.E.
AND GARCÍA RASO J.E. 2008. Decapod crus-
tacean assemblages from littoral bottoms of
the Alborán Sea (Spain, west Mediterranean
Sea): spatial and temporal variability. Scien-
tia Marina, 72 (3): 437-449
GLÉMAREC M. 1969. Les peuplements benthiques
du plateau continental Nord-Gascogne. These de
Doctorat d'Etat, Faculté des Sciences de Paris,
167 pp.
GLÉMAREC M. 1973. The benthic communities
of the European North Atlantic continental
shelf. Oceanography and Marine Biology, an
Annual Review, 11: 263-289.
GOFAS S. 1999. Marine molluscs with a very
small range in the Strait of Gibraltar. Diver-
sity and Distributions, 4: 255-266.
HOUART R. 2000. New species of Muricidae
(Gastropoda) from the northeastern Atlantic
and the Mediterranean sea. Zoosystema, 22 (3):
459-469.
LEDOYER M. 1968. Ecologie de la faune vagile
des biotopes méditerranéens accessibles en
scaphandre autonome. IV. Synthese de lé-
tude écologique. Recueil des Travaux de la
Station Marine d'Endoume, 60 (Bulletin 44):
1-295.
LIOUVILLE J. 1930. Liste provisotre des stations du
“Vanneau”, de la “Dédaigneuse” et du “Las-
signy” sur la cóte atlantique du Maroc, de 1923
a 1929 (Liste révisée par MM. Rob-Ph. Dollfus,
du Muséum, et le lieutenant de vaisseau Jean
Spitz, commandant l'unité marine a Casablanca).
Paris, Larose, 24 pp.
MARCHE-MARCHAD 1. 1981. Notes sur des rep-
resentants du genre Mesalia Gray, 1847 (Gas-
tropoda, Turritellidae) trouvés dans la
Méditerranée. Bolllettino Malacologico, 17 (3-
4): 41-48.
MITTELSTAED E. 1983. The upwelling area off
Northwest Africa. A description of phe-
nomena related to coastal upwelling. Progress
in Oceanography, 12: 307-331.
MONOD T. 1956. Hippidea et Brachyura Ouest-
Africains. Mémoires de l'Institut Francais
d'Afrique Notre, 45: 1-674.
PALLARY P. 1900. Coquilles marines du littoral
du Département d'Oran. Journal de Conchyli-
ologie, 48: 211-422, pl. 6-8
PALLARY P. 1920. Exploration Scientifique du
Maroc. Malacologie. Larose, Paris, and Insti-
tut Scientifique Chérifien, Rabat. 109 p., 1
pl., 1 map.
PASTEUR-HUMBERT C. 1962a. Les mollusques
marins testacés. du. Maroc... 1. Les
Gastéropodes. Travaux de l'Institut Scientifique
Chérifien, sér. Zoologie, 23: 1- 245.
PASTEUR-HUMBERT C. 1962b. Les mollusques
marins testacés du Maroc. 2. Les Lamelli-
branches et les Scaphopodes. Travaux de l'In-
stitut Scientifique Chérifien, sér. Zoologie, 28:
1-184.
PAXTON H., FADLAOUI S. AND LECHAPT J.P.
1995. Diopatra marocensis, a new brooding
species of Onuphidae (Annelida: Polychaeta).
Journal of the Marine Biological Association of
the United Kingdom, 75, 949-955.
US
Iberus, 28 (1), 2010
PÉRES J.M. AND PICARD J. 1964. Nouveau manuel
de bionomie benthique de la Mer Méditer-
ranée. Recueil des Travaux de la Station Marine
d'Endoume, 47 (Bulletin 31): 1-137.
POPPE G.T. AND GOTO Y. 1991. European
Seashells. Volume 1 (Polyplacophora, Caudo-
foveata, Solenogastra, Gastropoda), 352 pp.
Christa Hemmen, Wiesbaden.
PoPPE G.T. AND'GOTO Y. 1993. European
Seashells. Volume II (Scaphopoda, Bivalvia,
Cephalopoda), 221 pp. Christa Hemmen, Wies-
baden.
SALAS C. 1996. The Bivalves from off the South-
ern Iberian Peninsula collected by the
FAUNA I and BALGIM expeditions. Halio-
tis, 25: 33-100.
SALAS C. AND ROLÁN E. 1990. Four new species
of Condylocardiidae from Cape Verde Is-
lands. Bulletin du Muséum National d'Histoire
Naturelle, (4e sér.) 12A (2): 349-363
SALAS C. AND COSEL R. VON 1991. Taxonomy
of tropical West African bivalves III. Four
new species of Condylocardiidae from the
continental shelf. Bulletin du Muséum Na-
tional d' Histoire Naturelle (4e sér.) 13A (3-4):
263-281
114
THORSON G. 1957. Bottom communities (sub-
littoral or shallow shelf). In Hedgpeth, J.W.
(Ed.): Treatise on Marine Ecology and Palaeoe-
cology: 461-534. Geological Society of Amer-
ica.
TIRADO C. ANDSALASC. 1999. Reproduction of
Donax venustus Poli, 1795, Donax semistriatus
Poli, 1795 and intermediate morphotypes
(Bivalvia: Donacidae) in the littoral of Málaga
(Southern Spain). P.S.Z.N. Marine Ecology,
20 (2): 111-130.
TORTONESE E. 1965. Fauna d'Italia, VI. Echino-
dermata. Calderini, Bologna. 422 pp.
ZARIQUEY ÁLVAREZ R. 1968. Crustáceos decápo-
dos ibéricos. Investigación Pesquera, 32: i-xv,
1-510.
NORMAS DE PUBLICACIÓN
e La revista Iberus publica artículos de fondo, notas y monografías que versen sobre cualquiera de los aspectos
relacionados con la Malacología. Se entiende por artículo un trabajo de investigación de más de 5 páginas de
texto, incluidas láminas, gráficos y tablas. Las notas son trabajos de menor extensión. Las monografías son tra-
bajos sobre un tema único, de extensión superior a las 50 páginas de la revista y que serán publicadas, si
procede, como un suplemento de Iberus. Los autores interesados en publicar monografías deberán ponerse
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e Los manuscritos, así como toda la correspondencia relacionada con los mismos, deberán ser remitidos a:
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e El texto del trabajo podrá estar redactado en español, inglés, italiano, francés o portugués.
e Los artículos, notas y monografías deberán presentarse sobre DIN A-4, por una sola cara a doble espacio
(incluyendo referencias, pies de figura y tablas), con al menos 3 centímetros de margen por cada lado. Los tra-
bajos se entregarán por triplicado (original y dos copias) y se incluirá una versión en un CD, o bien remitida
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e Los manuscritos se presentarán de acuerdo al siguiente esquema:
Primera página. Deberá incluir un título conciso, pero sugerente del contenido del trabajo, así como una traduc-
ción al inglés del mismo (si el artículo no está escrito en inglés). Cuando sea preciso, deberá incluir referencia a
familia o taxones superiores. A continuación figurarán, por este orden, el nombre y apellidos completos del
autor o autores, las direcciones completas de los mismos, y un resumen del trabajo y su traducción al inglés.
Dicho resumen deberá sintetizar, en conjunción con el título, tanto los resultados como las conclusiones del
artículo; se sugiere una extensión de 100 a 200 palabras.
Páginas siguientes. Incluirán el resto del artículo, que debe dividirse en secciones precedidas por breves encabe-
zamientos. Siempre que sea posible, se recomienda seguir el siguiente esquema: Introducción, Material y
métodos, Resultados, Discusión, Conclusiones, Agradecimientos y Bibliografía. Si se emplean abreviaturas no
habituales en el texto, deberán indicarse tras el apartado de Material y Métodos.
e Las notas breves deberán presentarse de la misma forma, pero sin resumen.
e Deberán evitarse notas a pie de página y referencias cruzadas. Deberán respetarse estrictamente los Códigos
Internacionales de Nomenclatura Zoológica y Botánica (últimas ediciones). Cuando un taxón aparezca por
primera vez deberá citarse su autor y fecha de su descripción. En el caso de artículos sistemáticos, cuando se
den las sinonimias de los taxones, éstas deberán citarse COMPLETAS, incluyendo en forma abreviada la
publicación donde fueron descritas, y la localidad tipo si es conocida entre corchetes, según el siguiente
esquema (préstese especial cuidado a la puntuación):
Dendrodoris limbata (Cuvier, 1804)
Sinonimias
Doris limbata Cuvier, 1804, Ann. Mus. Hist. Nat. Paris, 4 (24): 468-469 [Localidad tipo: Marsella].
Doris nigricans Otto, 1823, Nov. Act. Ac. Caes. Leop.-Car., 10: 275.
Dichas referencias no deberán incluirse en la lista de Bibliografía si es la única vez que se nombran en el texto.
Si se incluyen una lista completa de referencias de un taxón inmediatamente tras éste, deberá seguirse el
mismo esquema (sin incluir en Bibliografía las referencias que no se mencionen en otro lugar del texto).
e Sólo los nombres en latín y los de taxones genéricos y específicos deberán llevar subrayado sencillo o prefe-
rentemente ir en cursiva. En ningún caso deberá escribirse una palabra totalmente en letras mayúsculas, ni
siquiera el Título. Las unidades a utilizar deberán pertenecer al Sistema Métrico Decimal, junto con sus correc-
tas abreviaturas. En artículos escritos en castellano, en los números decimales sepárese la parte entera de la
decimal por una coma inferior (,), NUNCA por un punto (.) o coma superior (').
e Las referencias bibliográficas irán en el texto con minúsculas o versalitas: Fretter y Graham (1962) o FRETTER
Y GRAHAM (1962). Si son más de dos autores se deberán citar todos la primera vez que aparecen en el texto
[Smith, Jones y Brown (1970)] empleándose et al. las siguientes veces [Smith et al. (1970)]. Si un autor ha publi-
cado más de un trabajo en un año se citarán con letras: (Davis, 1989a; Davis, 1989b). No deberá emplearse op.
cit. La lista de referencias deberá incluir todas las citas del texto y sólo éstas, ordenadas alfabéticamente. Se
citarán los nombres de todos los autores de cada referencia, sea cual sea su número. Los nombres de los
autores deberán escribirse, en letras minúsculas o Versalitas. No deberán incluirse referencias a autores
cuando éstos aparezcan en el texto exclusivamente como autoridades de un taxón. Los nombres de las publica-
ciones periódicas deberán aparecer COMPLETOS, no abreviados. Cuando se citen libros, dése el título, editor,
lugar de publicación, n* de edición si no es la primera y número total de páginas. Deberán evitarse referencias
a Tesis Doctorales u otros documentos inéditos de difícil consulta. Síganse los siguientes ejemplos (préstese
atención a la puntuación):
Fretter V. y Graham A. 1962. British Prosobranch Molluscs. Ray Society, London, 765 pp.
Ponder W.F. 1988. The Truncatelloidean (= Rissoacean) radiation - a preliminary phylogeny. En Ponder, W.F.
(Ed.): Prosobranch Phylogeny. Malacological Review, suppl. 4: 129-166.
Ros J. 1976. Catálogo provisional de los Opistobranquios (Gastropoda: Euthyneura) de las costas ibéricas. Mis-
celánea Zoológica, 3 (5): 21-51.
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del trabajo). Utilícese el esquema siguiente:
Figura 1. Neodoris carvi. A: animal desplazándose; B: detalle de un rinóforo; C: branquia.
Las abreviaturas empleadas en las ilustraciones deberán incluirse en los pies de figura.
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larmente complejas. Se recomienda reducir el número y extensión de ilustraciones, láminas o tablas al mínimo
necesario.
e Los artículos que no se ajusten a las normas de publicación serán devueltos al autor con las indicaciones de
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e El Comité Editorial comunicará al autor responsable del trabajo la fecha de recepción del trabajo y la fecha
de envío a revisión. Cada original recibido será sometido a revisión por al menos dos investigadores. El
Comité Editorial, a la vista de los informes de los revisores decidirá sobre la aceptación o no de cada manus-
crito. El autor recibirá en cada caso copia de los comentarios de los revisores sobre su artículo. En caso de
aceptación, el mismo Comité Editorial, si lo considera conveniente, podrá solicitar a los autores otras modifica-
ciones que considere oportunas. Si el trabajo es aceptado, el autor deberá enviar una copia impresa del mismo
corregida, acompañada por una versión en un CD, utilizando procesadores de texto en sus versiones corrien-
tes de Windows (pero no el formato .docx generado por Word 2007, el habitual de Windows Vista) o Macin-
tosh. La fecha de aceptación figurará en el artículo publicado.
e Las pruebas de imprenta serán enviadas por correo electrónico al autor responsable, exclusivamente para la
corrección de erratas, y deberán ser devueltas en un plazo máximo de una semana. Se recomienda prestar
especial atención en la corrección de las pruebas.
e De cada trabajo se entregarán gratuitamente 50 separatas, además de una versión electrónica en formato
«pdf. Aquellos autores que deseen un número mayor, deberán hacerlo constar al devolver las pruebas de
imprenta, y nunca posteriormente. El coste de las separatas adicionales será cargado al autor.
INSTRUCTIONS TO AUTHORS
* Iberus publishes research papers, notes and monographs devoted to the various aspects of Malacology.
Papers are manuscripts of more than 5 typed pages, including figures and tables. Notes are shorter papers.
Monographs should exceed 50 pages of the final periodical, and may be published as Supplements. Authors
wishing to publish monographs should contact the Editor. Manuscripts are considered on the understanding
that their contents have not been published or simultaneously submitted for publication elsewhere.
+ Manuscripts and correspondence regarding editorial matters must be sent to: Serge Gofas, Editor de Publica-
ciones, Departamento de Biología Animal, Universidad de Málaga, Campus de Teatinos, s/n, 29071, Málaga,
Spain and / or to the e-mail .
e Manuscripts may be written in Spanish, English, Italian, French or Portuguese.
e Manuscripts must be typed double spaced (including the references, figure captions and tables) on one side
on A-4 (297x210 mm) with margins of at least 3 cm. An original and two copies must be submitted, together
with a CD or e-mail remittance containing the article written with a current Windows (but not .docx format
generated by Word 2007, mainly used with Windows Vista) or Macintosh word processor. When a paper has
joint authorship, one author must accept responsibility for all correspondence.
* The authors must include a list of at least 4 possible referees; the Editor can choose any others if appropriate.
e Papers should conform the following layout:
First page. This must include a concise but informative title, with mention of family of higher taxon when
appropriate, and its Spanish translation. It will be followed by all authors” names and surnames, their full
address(es), an abstract (and its Spanish translation) not exceeding 200 words which summarizes not only con-
tents but results and conclusions.
Following pages. These should content the rest of the paper, divided into sections under short headings. When-
ever possible the text should be arranged as follows: Introduction, Material and methods, Results, Discussion,
Conclusions, Acknowledgements and References. Unusual abbreviations used in the text must be grouped in
one alphabetic sequence after the Material and methods section.
e Notes should follow the same layout, without the abstract.
e Footnotes and cross-references must be avoided. The International Codes of Zoological and Botanical
Nomenclature must be strictly followed. The first mention in the text of any taxon must be followed by its
authority including the year. In systematic papers, when synonyms of a taxon are given, they must be cited IN
FULL, including the periodical, in an abbreviate form, where they were described, and the type localities in
square brackets when known. Follow this example (please note the punctuation):
Dendrodoris limbata (Cuvier, 1804)
Synonyms
Doris limbata Cuvier, 1804, Ann. Mus. Hist. Nat. Paris, 4 (24): 468-469 [Type locality: Marseille].
Doris nigricans Otto, 1823, Nov. Act. Ac. Caes. Leop.-Car., 10: 275.
These references must not be included in the Bibliography list, except if referred to elsewhere in the text. If a
full list of references of the taxon is to be given immediately below it, the same layout should be followed (also
excluding from the Bibliography list those which are not cited elsewhere).
Only Latin words and names of genera and species should be underlined once or be given in italics. No word
must be written in UPPER CASE LETTERS. SI units are to be used, together with their appropriate symbols. In
Spanish manuscripts, decimal numbers must be separated with a comma (,), NEVER with a point (.) or upper
comma (').
e References in the text should be written in small letters or Small capitals: Fretter and Graham (1962) or
FRETTER AND GRAHAM (1962). The first mention in the text of a paper with more than two authors must
include all of them [Smith, Jones and Brown (1970)], thereafter use et al. [Smith et al. (1970)]. If an author has
published more than one paper per year, refer to them with letters: (Davis, 1989a; Davis, 1989b). Avoid op. cit.
The references in the reference list should be in alphabetical order and include all the publications cited in the
text but only these. ALL the authors of a paper must be included. These should be written in small letters or
Small capitals. The references need not be cited when the author and date are given only as authority for a tax-
onomic name. Titles of periodicals must be given IN FULL, not abbreviated. For books, give the title, name of
publisher, place of publication, indication of edition if not the first and total number of pages. Keep references
to doctoral theses or any other unpublished documents to an absolute minimum. See the following examples
(please note the punctuation):
Fretter V. and Graham A. 1962. British Prosobranch Molluscs. Ray Society, London, 765 pp.
Ponder W.F. 1988. The Truncatelloidean (= Rissoacean) radiation - a preliminary phylogeny. In Ponder W.F.
(Ed.): Prosobranch Phylogeny. Malacological Review, suppl. 4: 129-166.
Ros J. 1976. Catálogo provisional de los Opistobranquios (Gastropoda: Euthyneura) de las costas ibéricas. Mis-
celánea Zoológica, 3 (5): 21-51.
e Figures must be original and provided preferably in electronic format and adjusted to page format and
column size. These should be one column (57 mm) or two columns (121 mm) wide and up 196 mm high, or be
proportional to these sizes. Two columns format is recommended. It is essential that all figures be supplied in
their original format (e.g. photographs as high-grade .jpg or as .tif files, graphs as Excel spreadsheets or Corel-
Draw files), as the files inserted into WORD documents cannot be used for printing. Digital images must be
given their final printing size with a resolution at least 300 dpi for colour and halftones, and at least 600 dpi for
black / white.
Take into account possible reduction in lettering drawings; final lettering must be at least 2 mm high. In com-
posite drawings, each figure should be given a capital letter; additional lettering should be in lower-case
letters. A scale line, labelled with SÍ units, must be used to indicate size; magnification ratio must be avoided
as it may be changed during printing. UTM maps are to be used if necessary. Figures must be submitted on
separate sheets, and numbered with consecutive Arabic numbers (1, 2, 3,...), without separating “Plates” and
“Figures”. Legends for Figures must be typed in numerical order on a separate sheet, and a Spanish translation
must be included. Follow this example (please note the punctuation):
Figure 1. Neodoris carvi. A: animal crawling; B: rhinophore; C: gills.
If abbreviations are to be used in illustrations, they should be included in the figure captions.
Authors wishing to publish illustrations in colour should consult with the editor and will be charged a contri-
bution of 30 € per page. They should otherwise follow the same standards as black and white prints.
If the authors want to send Figures in printed format, it is essential to supply good quality originals. Half-tone
images must be of good contrast, and should be submitted in the final printing size. When mounting pho-
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trast results in poor reproduction. Computer graphics must be printed on high quality white paper with a
laser printer.
e Tables must be numbered with Roman numbers (1, II, IIL...) and each typed on a separate sheet. Headings
should be typed on a separate sheet, together with their English translation. Complex tables should be
avoided. As a general rule, keep the number and extension of illustrations and tables as reduced as possible.
e Manuscripts that do not conform to these instructions will be returned for correction before reviewing.
e Authors submitting manuscripts will receive an acknowledgement of receipt, including receipt date, and the
date the manuscript was sent for reviewing. Each manuscript will be critically evaluated by at least two refer-
ees. Based of these evaluations, the Editorial Board will decide on acceptance or rejection. Anyway, authors
will receive a copy of the referees” comments. If a manuscript is accepted, the Editorial Board may indicate
additional changes if desirable. Acceptable manuscripts will be returned to the author for consideration of
comments and criticism; a finalized manuscript must then be returned to the Editor, together with a CD con-
taining the article written with current Windows (but not a .docx format generated by Word 2007, mainly used
under Windows Vista) or Macintosh word processor. Dates of reception and acceptance of the manuscript will
appear in all published articles.
e Proofs will be e-mailed to the author for correcting errors and must be returned corrected within one week.
At this stage no stylistic changes will be accepted. Pay special attention to references and their dates in the text
and the Bibliography section, and also to numbers of Figures and Tables appearing in the text.
e Fifty reprints per article and a .pdf file will be supplied free of charge. Additional reprints must be ordered
when the page proofs are returned, and will be charged at cost. NO LATER orders will be accepted.
La SOCIEDAD ESPAÑOLA DE IMALACOLOGÍA
Junta Directiva desde el 11 de octubre de 2005
Presidente José Templado González
Vicepresidente Emilio Rolán Mosquera
Secretaria María Carmen Salas Casanovas
Tesorero | Luis Murillo Guillén
Editor de Publicaciones Serge Gofas
Bibliotecario Rafael Araujo Armero
- Vocales Ramon M. Álvarez Halcon
Benjamín Gómez Moliner
Alberto Martínez Ortí
Diego Moreno Lampreave
José Ramón Arrébola Burgos
La Sociedad Española de Malacología se fundó el 21 de agosto de 1980. La sociedad se registró como una aso-
ciación sin ánimo de lucro en Madrid (Registro N“ 4053) con unos estatutos que fueron aprobados el 12 de
diciembre de 1980. Esta sociedad se constituye con el fin de fomentar y difundir los estudios malacológicos
mediante reuniones y publicaciones. A esta sociedad puede pertenecer cualquier persona o institución interesada
en el estudio de los moluscos.
SEDE SOCIAL: Museo Nacional de Ciencias Naturales, c/ José Gutierrez Abascal 2, 28006 Madrid, España.
CUOTAS PARA 2010:
Socio numerario (en España): AQ) euros
(en Europa) 40 euros
(fuera de Europa): 48 euros
Socio estudiante (en España): 23 euros
(en el extranjero): 29 euros
Socio Familiar: (sin recepcion de revista) 4 euros
Socio Protector: (mínimo) 48 euros
Socio Corporativo (en Europa): 48 euros
(fuera de Europa): 54 euros
INSCRIPCIÓN: 6 euros, además de la cuota correspondiente.
A los socios residentes en España se les aconseja domiciliar su cuota. Todos los abonos deberán enviarse al
Tesorero (dirección reseñada anteriormente) el 1 de enero de cada año. Los abonos se harán sin recargos para la
sociedad y en favor de la Sociedad Española de Malacología y no de ninguna persona de la junta directiva. Aque-
llos socios que no abonen su cuota anual dejarán de recibir las publicaciones de la Sociedad. Los bonos de ins-
cripción se enviarán junto con el abono de una cuota anual al Tesorero.
A los residentes en el extranjero se les ruega que abonen su cuota mediante giro postal en euros (internatio-
nal postal money orders in euros sent to the Treasurer). Members living in foreing countries can deduce 6 euros
if paid before 15 April.
Cada socio tiene derecho a recibir anualmente los números de /berus, Reseñas Malacológicas y Noticiarios que
se publiquen.
TUTION LIBRARIES
miii
1 5455
ÍNDICE
Iberus 28 (1) 2010
DuoIs C. Er MARTÍNEZ-ORTÍ A. Reproduction du mollusque envahisseur Corbicula fuminea
(O. E. Múller, 1774) (Bivalvia: Corbiculidae) et recrutement et distribution de ses juvé-
niles dans un canal de la région toulousaine (France)
Reproducción del molusco invasor Corbicula fluminea (O. E Múller, 1774) (Bivalvia: Corbi-
culidae) y reclutamiento y distribución de sus juveniles en un canal la región de Toulouse
(ARANCEL O O a 1-11
BEJEGA GARCÍA V., GONZÁLEZ GÓMEZ DE AGUERO E. Y FERNÁNDEZ RODRÍGUEZ C. La Arque-
- omalacología: una introducción al estudio de los restos de moluscos recuperados en yaci-
mientos arqueológicos
Archaeomalacology: an introduction to the analysis of'shellfish remains from archaeological
SES AS AE MN. O di 13-22
GOFAS S. Y OLIVER J.D. Las especies del género Chauvetia (Gastropoda, Neogastropoda, Buccini-
dae) del área ibero-marroquí, con descripción de cuatro especies nuevas
The species of the genus Chauvetia (Gastropoda, Neogastropoda, Buccinidae) in the Ibero-
moroccan area, with the description of four new species ..ooonniccocaciccccacno 23-60
GUERRA A., PIERCE G.J., SANTOS, M?,B., GONZÁLEZ A.F, HERNÁNDEZ-MILIAN G., PORTEIRO
C. AND PATIÑO B. Record of the largest specimen of neon flying squid Ommastrephes bar-
tramil (Cephalopoda: Ommastrephidae)
Registro del mayor ejemplar de pota saltadora Ommastrephes bartramii (Cephalopoda:
Onmastreprrda o eL. 61-66
HOLYOAK G.A. AND HOLYOAK, D.T. A new species of Candidula (Gastropoda, Hygromiidae)
from central Portugal
Una nueva especie de Candidula (Gastropoda, Hygromiidae) de Portugal .......... 67-72
ROLÁN E. AND ZETTLER M.L. A new species of Gibbula (Mollusca, Archaegastopoda) from
Namibia A
Una nueva especie de Gibbula (Mollusca, Archaegastopoda) de Namibia ........... 73-78
ROLÁN E. AND RAÚL FERNÁNDEZ-GARCÉS R. New information on the Caribbean Rissoina (Gas-
tropoda, Rissoidae) of the group R. sagraiana-cancellata with the description of a new
species
Nueva información sobre las Rissoina del Caribe (Gastropoda, Rissoidae) del grupo de R.
sagralana-cancellata, con la descripción de una nueva especie ooo 79-89
GOFAS S. Á new Manzonia (Gastropoda; Rissoidae) from nothwestern Morocco
Una nueva Mañzonia (| Gastropoda, Rissoidae) del Noroeste de Marruecos .......... 91-96
MOUKRIM A., GARCÍA RAso J.E. AND GOFAS S. Notes on the benthic macrofauna of Agadir Bay
(Atlantic Moroceo)
Datos sobre la macrofauna bentónica de la Bahía de Agadir (Marruecos Atlántico) ... 97-114
ISSN 0212-3010
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O Sociedad Española de Malacología
Iberus, 28 (2): 1-4, 2010
Haedropleura ryalli, a new species from Sáo Tomé Island
(Gastropoda, Turridae)
Haedropleura ryalli, mueva especie de la isla de Sáo Tomé
(Gastropoda, Turridae)
Juan HORRO*, Sandro GORI** and Emilio ROLÁN***
Recibido el 10-11-2010. Aceptado el 31-VIIL-2010
ABSTRACT
A new species of the genus Haedropleura Bucquoy, Dautzenberg and Dollfus, 1883 from
the island of Súo Tomé, West Africa, is described and figured.
RESUMEN
Se describe e ilustra una nueva especie del género Haedropleura Bucquoy, Dautzenberg
y Dollfus, 1883 recolectada en la isla de Sáo Tomé, Africa occidental.
INTRODUCTION
The genus Haedropleura Bucquoy,
Dautzenberg and Dollfus, 1883 is men-
tioned in POWELL (1966) who describes
the shell, operculum and radula and
refers that this genus has species from
the European Miocene and Pliocene and
also Recent from Europe and West
Africa down to South Africa.
The introduction of scuba diving as
a sampling technique in recent times
along several areas of the West African
coast where it had scarcely been used
before has led to the availability of
material from waters deeper than previ-
ously studied ones, bringing a number
of interesting new species to the atten-
tion of malacologists. That happened in
particular in Sáo Tomé Island, a place
characterised by the abundance of
endemic species.
While studying the material collected
by the second author by scuba diving in
that island, the authors have identified a
new species of Haedropleura which is
described and illustrated in this paper.
Abbreviations:
MNHM Muséum national d'Histoire
naturelle, Paris
MNCN Museo Nacional de Ciencias
Naturales, Madrid
MNHN Muséum national d' Histoire
naturelle, Paris
ZMB Zoologisches Museum, Berlin
CJH collection Juan Horro, Vigo
CPR collection of Peter Ryall, Maria
Rain
CSG collection Sandro Gori, Livorno
s shell collected empty
* Montero Rios 30-39, 36201 Vigo, Spain; juanhorroCtelefonica.net
** Via Semesi, 7, 57123, Livorno, Italy; sandrogoriCfastwebnet.it
*** Museo de Historia Natural, Campus Universitario Sur, 15782 Santiago de Compostela, Spain;
erolanGemiliorolan.com
Iberus, 28 (2), 2010
TAXONOMIC PART
Family TURRIDAE Swainson, 1840
Subfamily CRASSISPIRINAE Morrison, 1966
Genus Haedropleura Bucquoy, Dautzenberg and Dollfus, 1883
Type species (o. d.): Pleurotoma septangularis Montagu, 1803
Haedropleura ryalli spec. nov. (Figs. 1-7)
Type material: Holotype (Figs. 1-2) in MNHN (22883). One paratype (Figs. 3, 4) in MNCN
(15.05/53578, 1 s) from type locality. Other paratypes from Minerio Reef, Sáo Tomé, 00* 23”
01.6” N, 067 46' 22.8” E, 41 m, in the following collections: MHNS (1 s), CSG (4 s), CJH (1 s),
CPR (2 s).
Other material examined: 1 fragment, Minerio, Sáo Tomé (MHNS).
Type locality: Lagoa Azul “Fundao”, 36 m, Sáo Tomé.
Etymology: Named after our colleague and friend Peter Ryall, who was the first to call our atten-
tion to the singularity of these shells.
Description: Shell (Figs. 1-6) fusiform
rhomboid, elongate and solid with a
high spire. Protoconch (Fig. 7) with
about 1 */4 whorls, with a diameter
between 500 and 650 um, placed in an
oblique position, the nucleus not situ-
ated at the apex.
Teleoconch of the holotype with 4 Y
convex whorls, each one having 7-8
prominent and thick axial ribs which go
from suture to suture without any sub-
sutural rib or smooth area, and are
mostly aligned with those of the follow-
ing whorl. Ribs becoming thinner and
somewhat s-shaped on the last whorl.
Suture deep and sinuous. Last whorl
representing 65/70% of total shell
height. Spiral sculpture formed by very
fine and numerous striae on the whole
surface, which pass over the axial ribs,
extend down to the base and cover also
the outer lip. Aperture oval elongate,
with an evident parietal callus and
smooth columella; siphonal canal short
and wide; outer lip very much thick-
ened. Background coloration light
cream, with a dark brown subsutural
band below which there are irregular
and interrupted spiral lines of the same
colour; in the middle of the body whorl
these lines tend to form another broad
band; lower base and mouth almost
white.
Dimensions: The holotype is 5.7 mm;
the paratypes measure from 5.6 to 6.2 mm.
Animal: Not studied.
Distribution: Only known from the
two mentioned locations in Sáo Tomé
Island, from which we suppose it to be
endemic. So far it has not been found in
the closeby Príncipe Island, although
material from this island available for
study, from similar depths, has been
scarce so far.
Remarks: Although the generic place-
ment of this new species in the genus
Haedropleura must be considered a tenta-
tive assignation, due to the lack of soft
parts, it seems clear from a conchologi-
cal perspective, because it presents a
shape and micro sculpture typical of
this genus.
Specially after the introduction of
the genus Anacithara Hedley, 1922, for
west african fauna (HORRO, RYALL AND
ROLÁN, 2010), we are aware of the close
relationship between these two genera.
These can only be certainly separated
using radular characters, according to
KILBURN (1994) with whom we agree
this point. It must be noted that H. ryalli
shows the spiral sculpture of finer and
numerous spiral striae which is typical
of Haedropleura, instead of more distant
incised grooves present in Anacithara
and that it also presents a larger and dif-
ferent protoconch.
It must also be remembered that
genus Bellaspira Conrad, 1868 has some-
times been considered as a senior
HORRO ET 4L.: Haedropleura ryalli, a new species from Sáo Tomé Island
Figures 1-7. Haedropleura ryalli spec. nov. 1, 2: holotype, 5.7 mm, Lagoa Azul (MNHN); 3, 4:
paratype, 5.7 mm, Lagoa Azul (MNCN); 5: paratype, 6.1 mm, Minerio (CSG); 6: paratype, 5.8
mm, Minerio (CPR); 7: protoconch of the holotype.
Figuras 1-7. Haedropleura ryalli spec. nov. 1, 2: holotipo, 5,7 mm, Lagoa Azul (MNHN), 3, 4:
paratipo, 5,7 mm, Lagoa Azul (MNCN); 5: paratipo, 6,1 mm, Minerio (CSG); 6: paratipo, 5,8 mm,
Minerio (CPR); 7: protoconcha del holotipo.
synonym of Haedropleura, but GIAN- showing conchological and radular dif-
NUZZI-SAVELLI AND PUSATERI (1986) ferences between both genera and con-
have already solved this question, cluding that Bellaspira species is
Iberus, 28 (2), 2010
restricted to the Caribbean and Panamic
provinces, while the appropriate genus
for European species is Haedropleura.
There is great confusion regarding the
genus Haedropleura in Eastern Atlantic
and Mediterranean waters and a general
revision of the genus is very much
needed, especially for West African
waters. Recently MICALI (2010) referring
only to Mediterranean species, shows
three different ones and calls them H. sep-
tangularis, H. secalina (Philippi, 1844) and
H. flexicosta Monterosato, 1884. It is not
the aim of this paper to start on such a
revision, which, at least in Atlantic
waters, would include more species and
should include information on the types.
ACKNOWLEDGEMENTS
We are grateful to the Department
of Genetics of the University of Vigo
for their help with photography, and to
BIBLIOGRAPHY
GIANNUZIESAVELLI R. AND PUSATERI F. 1986.
Ripristino validitá del taxon generico Hae-
dropleura Monterosato in B.D.D., 1883 (Mol-
lusca: Gastropoda). Lavori, Societa Italiana di
Malacología, 22, Atti Congreso Palermo 13-16
sett 1984: 163-168.
HORRO J., RYALL P. AND ROLÁN E. 2010.
Anacithara (Conoidea, Turridae) a new genus
to West Africa. Gloria Maris, 49 (1): 14-22.
KILBURN R.N. 1988. Turridae (Mollusca: Gas-
tropoda) of southern Africa and Mozam-
bique, Part 4. Drilliinae, Crassispirinae and
Strictispirinae. Annals of the Natal Museum, 29
(1): 167-320.
However, we must state that Haedropleura
ryalli sp. nov. is easy to separate from all
other European and West African Hae-
dropleura species due to its unique proto-
conch. This does not appear on any other
species of this genus, even in those with
paucispiral protoconchs such as H.
secalina and H. flexicosta mentioned by
MICALI (2010), or such as the one figured
by NORDSIECK (1977: 75, plate 1, n* 8)
under the genus name Bellaspira, which
are clearly larger, with a more flattened
top and does not show the typical posi-
tion of the nucleus of H. ryalli. The con-
stant pattern of H. ryalli which is not
found in specimens from other locations
also confirms its valid specific status.
Dr. S. Gofas, editor of Iberus who
made important suggestions for this
paper.
KILBURN R.N. 1994. Turridae [s. 1.] (Mollusca:
Gastropoda) of southern Africa and Mozam-
bique. Part. 7. Subfamily Crassispirinae, sec-
tion 2. Annals of the Natal Museum, 35: 177-228.
MICAaLI P. 2010. Nota sul genere Haedropleura
B.B.D., 1883 nel Mediterraneo. Malacología
Mostra Mondiale, 67: 3-5.
NORDSIECK E. 1977. The Turridae of the European
Seas. Rome, La Piramide. 131 pp.
POwELL A.W.B. 1966. The Molluscan families
Speightiidae and Turridae. Bulletin of the
Auckland Institute and Museum, 5: 1-184, 23 pls.
O Sociedad Española de Malacología —__—_—_——T— Iberus, 28 (2): 5-21, 2010
Ultrastructural study of oogenesis in the African mussel,
Perna perna (Bivalvia: Mytilidae)
Estudio ultraestructural de la ovogénesis en el mejillón africano,
Perna perna (Bivalvia: Mytilidae)
Soumya BENOMAR*, Oum Keltoum BELHSEN**, Michel MATHIEU**
and Abdellatif MOUKRIM*
Recibido el 15-IV-2010. Aceptado el 7-X-2010
ABSTRACT
Transmission electron microscopy of female gonads in Perna perna (Mytilidae) was carried
out to study the fine structure of the different developmental stages during oogenesis and
to examine the functions of the follicular cells. The gonad is composed of acini, each con-
taining oogoniae and oocytes surrounded by follicular cells, and of an interacinar connec-
tive tissue with vesicular cells. Groups of primary oogoniae, surmounted by secondary
oogoniae, were found along the inner wall of each acinus. Previtellogenesis of oocytes
was characterized by a great increase of these cells in volume, the accumulation of numer-
ous organelles, and the formation of the first yolk granules at the end of this phase. The
period of vitellogenesis involved both autosynthetic and heterosynthetic pathways, and
was marked by the accumulation of cortical granules and of yolk granules. Numerous lipid
droplets (two types), several inclusions resulting from the heterosynthetic uptake of exoge-
nous substances by pinocytosis, and droplets showing two types of electron-lucent materi-
als in the cytoplasm of mature oocytes could also be observed. In the atretic ovocytes, a
vacuolization progressively developed in their cytoplasm, with the subsequent rupture of
the vitelline membrane and the release of oocyte remnants in the lumen of the acinus. At
the end of vitellogenesis, the follicular cells became detached from the oocyte and con-
tained numerous lipid droplets and glycogen inclusions. In P. perna, the formation of
female gametes was mostly similar to the oogenesis described in other species of bivalvia.
The only difference concerned the composition of the yolk in the mature oocyte, as it was
constituted of several endogenous substances (lipoproteins mainly) and also of exogenous
materials intaken by the oocyte via pinocytosis.
RESUMEN
Las gónadas femeninas en Perna perna (Mytilidae) se observaron por microscopía elec-
trónica de transmisión para estudiar la estructura fina de las diferentes etapas de desar-
rollo durante la ovogénesis y examinar las funciones de las células foliculares. La gónada
está formada por acinos, cada uno de ellos conteniendo oogonias y ovocitos rodeados
por células foliculares, y por un tejido conectivo interacinar con células vesiculares. Gru-
pos de oogonias primarias, a los que se sobreponen oogonias secundarias, se encuentran
a lo largo de la pared interna de cada acino. La previtelogénesis de los ovocitos se carac-
terizó por un gran aumento de volumen en estas células, por la acumulación de
* Laboratory Aquatic Ecosystems : Marine and Continental Field, Biology Department, Sciences Faculty, Ibn
Zohr University, BP 8106, 80000, Agadir, Morocco. e-mail: moukrimCuniv-ibnzohr.ac.ma.
** Laboratory Marine Biology and Biotechnology, 1. B. B. A., Caen University, France.
Iberus, 28 (2), 2010
numerosos orgánulos y por la formación de los primeros gránulos de vitelo al final de esta
fase. El período de vitelogénesis implica ambas vías autosintética y heterosintética y se
caracteriza por la acumulación de gránulos corticales y de los gránulos de vitelo. En el
citoplasma de los ovocitos maduros, se observaron también numerosas gotitas de lípidos
(de dos tipos), varias inclusiones resultando de la absorción heterosintética de sustancias
exógenas por pinocitosis, así como gotitas con dos tipos de materiales electrón lúcidas.
En los ovocitos atrésicos, una vacuolización se desarrolló progresivamente en su cito-
plasma, con la posterior ruptura de la membrana vitelina y la liberación de los restos de
ovocitos en el lumen de los acinos. Al final de la vitelogénesis, las células foliculares se
desprendían del ovocito y contenían numerosas gotitas de lípidos y inclusiones de
glucógeno. En P. perna, la formación de gametos femeninos fue muy similar a la ovogéne-
sis descrita en otras especies de bivalvos. La única diferencia se refiere a la composición
del vitelo en el ovocito maduro, ya que está constituido por varias sustancias endógenas
(lipoproteínas, principalmente), así como por materiales exógenos absorbidos por el ovoc-
ito, mediante pinocitosis.
INTRODUCTION
The African mussel: Perna perna, is a
worldwide species (BERRY, 1978; HICKS ,
TUNNELL AND MCMAHON, 2001a).
However, the studies performed on the
biology of this mussel only concerned its
reproductive cycles, as there was an
intraspecific variability in the reproduc-
tion. Indeed, in the South African popula-
tions of P. perna, two main spawning
periods between April and October, and
several minor and scarcer spawning
events after October were reported by
BERRY (1978) and LAsiaK (1986). By con-
trast, in other Perna populations from the
same country, SCHURINK AND GRIFFITHS
(1991) found a single prolonged spawn-
ing period along the year, with spawning
activity every month. In the Gulf of
Mexico, three spawning periods with one
extended and two discrete events in
spring or summer were described by
Hicks, TUNNELL AND MCMAHON (2001)
and Hicks, MCMAHON AND INGRAO
(2001). In view of this variability in repro-
ductive cycles, it was useful to study
gametogenesis in local populations of P.
perna.
As P. perna lives along the southern
Atlantic coasts of Morocco, a research
programme was carried out to deter-
mine the spawning episodes of these
local mussels and to analyse the charac-
teristics of their gametogenesis. A first
histological study (ID HALLA, BOUHAIMI,
ZEKHNINL, NARBONNE, MATHIEU AND
MOUKRIM, 1997) demonstrated a single
spawning period along the year, with a
major event in spring, and this work
was completed by ultrastructural
studies on spermatogenesis in the same
Moroccan population of P. perna
(BENOMAR, BELHSEN, GOUX, MATHIEU
AND MOUKRIM, 2007). The main aim of
the present paper is to describe the
ultrastructural stages of female gamete
formation and of oocyte degeneration in
P. perna. The follicular cells and their
function are also examined.
MATERIALS AND METHODS
Samples of five mussels each (3-4 cm
long) were collected in December 1999,
January, March, June and July 2000 from
the mid-tide level at Cap Ghir (50 km
north of Agadir town). Small portions of
female gonad (1-3 mm? each) were fixed
for 60 min in 2% glutaraldehyde (0.4 M
sodium cacodylate buffer, pH 7.2) at
4*C. The tissue was then washed in 0.4
M cacodylate buffer (3 x 10 min) and
postfixed for 90 min in 1% osmium
tetroxyde (in 0.4 M cacodylate buffer) at
4%C. After dehydration through a
gradual ethanol series, the tissue was
directly embedded in Epon resin at 37
“C for 60 min and was subsequently
BENOMAR £7 AL.: Ultrastructural study of oogenesis in the African mussel, Perna perna
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Figure 1. A. Primary oogonia (Og) and follicular cells (Ec) of Perna perna, along the inner side of
the acinar wall. Some vesicular cells (Vc) were located along the outer side. da, dense aggregates;
G, Golgi apparatus; gl, glycogen; Li, lipid droplets; m, mitochondria; N, nucleus, RER, rough
endoplasmic reticulum; pc, cytoplasmic projections of follicular cells; v, vacuoles. B. Interacinar
vesicular cells showing two types of granules (g1, and g2). Scale bars, 2 um.
Figura 1. A. Oogonia primaria (Og) y células foliculares (Fc) de Perna perna, sobre el lado interno de
la pared acinar. Algunas células vesiculares (Vc) se ubicaron en el lado externo. da, agregados densos; G,
Aparato de Golgi; gl, glucógeno; Li, gotitas de lípidos; m, mitocondria; N, núcleo, RER, retículo endo-
plasmático rugoso; pc, proyecciones citoplasmáticas de células foliculares; v, vacuolas. B. Células vesicu-
lares interacinares mostrando dos tipos de gránulos (g1, and g2). Escalas, 2 ym.
placed at room temperature during the were collected on copper grids and were
following 12 hours. Semi-thin sections stained for 20 min with urany]l acetate,
of each gonad portion were stained at followed by lead citrate for 5 min. Sec-
room temperature with 0.5% toluidine tions were examined using a Siemens
blue in 2.5% Na2CO». Ultrathin sections 102 electron microscope.
Iberus, 28 (2), 2010
E
Figure
2. Oogoniae of Perna perna. A. Zonula occludens (arrows) and zonula adherens (arrow
heads) between an oogonia (Og), a follicular cell, and a spindle-shaped cell. B-C. Nuclei of two
oogoniae in metaphasis (first meiotic division). Scale bars, 2 um.
Figura 2. Oogonias de Perna perna. A. Zonula occludens (flechas) y zonula adherens (puntas de flecha)
entre una oogonia (Og), una célula folicular, y una célula fusiforme. B-C. Núcleos de dos oogonias en
metáfase (primera división meiótica). Escalas, 2 ym.
Different measurements for each cell
stage of ovogenesis (a least of 10 cells
per stage) were also performed. Indivi-
dual values recorded for each measure-
ment and each cell stage were averaged.
RESULTS
Numerous acini, surrounded by con-
nective tissue and an external ciliated
epithelium, constituted each gonad (Fig.
1A). Along the inner side of each acinar
wall, the different developmental stages
of oogenesis, from oogoniae up to the
first stages of the first meiotic division,
could be easily observed. All of them
were surrounded by follicular cells and
spindle-shaped cells containing glycogen
inclusions (Fig. 1A). In the interacinar
connective tissue, other vesicular cells,
each containing two types of granules,
were found (Fig.1B). Along the outer side
of the acinus, several muscular fibers
were sometimes observed (Fig. 3A).
Oogoniae: Groups of primary oogo-
niae (primordial cells), each constituted
by 2 or 4 cells, were found along the
inner side of each acinar wall (Fig. 1A,
B). Follicular cells characterized by their
cytoplasmic extensions were close to
these cell groups. The primary oogoniae
were round or elongated, measured 5 to
8 mun in size, and were characterized by
a high nucleo-cytoplasmic ratio. They
were interconnected by zonulae occlu-
dens and zonulae adherens (Fig. 24).
Their nuclei (3-6 um) contained small
BENOMAR E7 AL.: Ultrastructural study of oogenesis in the African mussel, Perna perna
a Pz,
¿ ie A IE
e
Figure 3. Previtellogenic oocyte of Perna perna. A. Early previtellogenic oocyte. The nucleus (N)
showed a wide perinuclear cisterna (*) and is positioned near the basal lamina (bl) of the acinus.
G, Golgi apparatus; Li, lipid droplets; m, elongated mitochondria; mf, muscular fibers; r, ribo-
somes. B. Late previtellogenic oocyte. Zonula occludens (double arrows) and zonula adherens
(arrow heads) between one oocyte and two follicular cells. Scale bars, A: 1 qm; B: 0.2 qm.
Figura 3. Ovocitos previtelogénicos de Perna perna. A. Ovocito previtelogénico temprano. El núcleo (N)
presentaba una cisterna perinuclear (*) ancha y se sitúa cerca de la lámina basal (b1) del acino. G,
Aparato de Golgi; Li, gotitas de lípidos; m, mitocóndria alargada; mf, fibras musculares; r, ribosomas.
B. Ovocito previtelogénico tardío. Zonula occludens (flechas dobles) y zonula adherens (puntas de flecha)
entre un ovocito y dos células foliculares. Escalas, A: 1 um; B: 0,2 um.
patches of chromatin. In several cells,
the chromatin formed a thin border
along the inner side of the nuclear enve-
lope, a single or two nucleoli could be
observed, and the nuclear envelope was
indented. Numerous ribosomes, spheri-
cal mitochondria, some cisternae of
endoplasmic reticulum, several lipid
droplets with no membrane, and mem-
brane-bounded dense vesicles were
found in the cytoplasm (Figs. 1-2).
The secondary oogoniae measured 5
to 6 um in size, and the diplotene stages
of the first meiotic division (Fig. 2B, C)
were easily recognizable in their volu-
minous nuclei (4.5-5.5 um). However,
synaptonemal complexes were not
found in these nuclei. These cells con-
tained the same organelles as described
for primary oogoniae.
Previtellogenic oocytes: The early pre-
vitellogenic oocytes (Fig. 3A) were con-
nected together and to follicular cells via
zonulae occludens and zonulae
adherens (Fig. 3B). They were round or
elongated, with irregular outlines, and
their size ranged from 9 to 15 um. Their
cytoplasm was more voluminous than
that of oogoniae and was increased by
the addition of ribosomes, of often elon-
gated mitochondria, and of smooth or
rough endoplasmic reticulum (ER).
Several vacuoles around the Golgi appa-
ratus could be observed. Their nucleus
became elongated, with scattered chro-
matin and a thicker nuclear envelope,
showing a clearly wider perinuclear cis-
terna and the presence of ribosomes
along the outer side of the outer nuclear
membrane.
At a later stage (Fig. 4A-E), the
oocytes were elongated and their size
reached up to 18 um. Their nuclei
became irregular, multilobulated, and
were eccentrically positioned. Numer-
ous pores through both membranes of
the nuclear envelope could be seen and
the nucleolus was often in an eccentric
position. At the same time, dense aggre-
gates with no membrane appeared in
the cytoplasm, near the nucleus. The
rough ER increased in size and some
Iberus, 28 (2), 2010
Figure 4 A-E. Late previtellogenic oocytes of Perna perna. Al, annulate lamellae; da, dense aggre-
gates; G, Golgi apparatus with a vesicle (gv): g, granule; Li, lipid droplets; m, mitochondria; N,
nucleus; RER, rough endoplasmic reticulum; arrow, yolk granule. Scale bars, 1 pm.
Figura 4 A-E. Ovocitos previtelogénicos tardíos de Perna perna. Al, laminillas anulares; da, agregados
densos; G, Aparato de Golgi con una vesícula (gu): g, gránulo; Li, gotitas de lipidos; m, mitocóndria; N,
núcleo; RER, retículo endoplasmático rugoso; flecha, gránulo de vitelo. Escalas, 1 ym.
10
BENOMAR ET AL.: Ultrastructural study of oogenesis in the African mussel, Perna perna
q
VE
Figure 5. Pinocytosis vesicle (large arrow) with a lipid droplet and glycogen particles (small
arrows). *, glycogen deposit in a spindle-shaped cell. Zonula occludens (double arrows) and zonula
adherens (arrow heads) between one oocyte and two follicular cells. Scale bar, 1 qm.
Figure 5. Vesícula de pinocitosis (flecha grande) con una gotita de lípidos y partículas de glucógeno
(flechas pequeñas). *, depósito de glucógeno en una célula fusiforme. Zonula occludens (flechas dobles) y
zonula adherens (puntas de flecha) entre un ovocito y dos células foliculares. Escala, 1 ym.
lipid vesicles became bigger in its vicin-
ity. In close proximity, elongated gran-
ules containing a dense granular mater-
ial were sometimes observed. Lamellar
structures of ER and the first yolk gran-
ules appeared near the Golgi apparatus
(Fig 4C). In the basal part of the
ooplasm and particularly in the zones of
contact between the oocyte and its sur-
rounding cells (follicular cells, and
spindle-shaped cells), some pinocytosis
vacuoles, each containing lipid droplets
and several deposits probably of glyco-
gen, could be seen (Fig. 5).
Vitellogenic oocytes: Their develop-
ment within the gonad can be arbitrarily
divided into four stages, from A the
youngest, to D the oldest. Each early
vitellogenic oocyte (A stage) kept
contact with the acinar wall by cytoplas-
mic projections (Fig. 6A, B) and was sur-
rounded by follicular cells which are
apically connected by desmosome-like
junctions. Measuring 30 yum in size, this
oocyte contained an elongated nucleus
(9 um) with a very dense nucleolus. In
the zone of attachment of the oocyte
with the acinar wall, and particularly in
cytoplasmic projections, some cisternae
of rough ER could be observed. Several
microvilli appeared on the outer surface
of the apical oolemma (Fig. 6A). At a
later stage in vitellogenesis (B stage), the
nucleus became spherical and increased
in size (Fig. 6C). The nucleolus was in
an eccentric position and was sur-
rounded by an electron-lucent material,
while the nucleoplasm was constituted
by moderately dense patches of hete-
rochromatin and scattering euchro-
matin. A previtelline space was forming
between the apex of the oocyte and the
surrounding follicular cells, and an
amorphous electron-lucent material,
originating from the oocyte, settled into
this space between the numerous apical
microvilli formed by the oolemma. Pro-
gressively, this previtelline space
extended along the lateral sides of the
oocyte and the microvilli became coated
by the amorphous material. Concur-
rently, there was an increase in the
number of saccules forming the Golgi
apparatus and in the number of mito-
chondria (mainly in the attachment zone
of the oocyte) (Fig. 64). The rough ER
greatly increased in volume and showed
circular lamellae, surrounded by numer-
11
Iberus, 28 (2), 2010
Figure 6. Vitellogenic oocytes of Perna perna. A. A-stage oocytes, with cytoplasmic projections (cp)
and microvilli (mv) developing at the apex of cells. Flattened rough ER cisternae (RER) were posi-
tioned near the nucleus or in cytoplasmic projections (cp). A ring of rough ER surrounded a yolk
granule (Y). Li, lipid droplets; arrow head, a Balbiani's body. B. cortical granules (cg) near several
cisternae of rough ER (arrows). C. B-stage oocytes. Their nucleolus (nu) was in an eccentric posi-
tion and was surrounded by an electron-lucent nuclear material (arrows). A myelin-like figure (mf)
in a follicular cell can be observed. Flattened cisternae of rough ER were located in the vicinity of
the nucleus. Scale bars, A, C: 2 qm; B: 1 um.
Figura 6. Ovocitos vitelogénicos de Perna perna. A. Ovocitos de estadio A, con proyecciones citoplasmáticas
(cp) y microvellosidades (mv) desarrollandose en el ápice de las células. Cisternas aplanadas del RE rugoso
(RER) eran situadas cerca del núcleo o en proyecciones citoplasmáticas (cp). Un anillo de RE rugoso rodeaba
un gránulo de vitelo (Y). Li, gottas de lípidos; punta de flecha, un cuerpo de Balbiani. B. gránulos corticales
(cg) cerca de varias cisternas de RE rugoso (flechas). C. Ovocitos de estadio B. Su nucleolo se situaba en posi-
ción excéntrica y era rodeado por un material electrón lúcido del núcleo (flechas). Se puede observar una
figura parecida con mielina (mf) en una célula folicular. Algunas cisternas aplanadas de RE rugoso se situ-
aban en las inmediaciones del núcleo. Escalas, A, C: 2 ym; B: 1 um.
12
BENOMAR £7 AL.: Ultrastructural study of oogenesis in the African mussel, Perna perna
Figure 7. Vitellogenic oocytes of Perna perna. A-E. C-stage oocytes showing cytoplasmic indentations (oi,
or arrows) in their nuclei. g, granules located in the ooplasm; Li, lipid droplets; *, a dense granule with no
membrane. See also an electron-lucent patch (ng) in the nucleus (in A), a yolk granule (Y) surrounded by
a ring of rough ER (in B), the presence of numerous pores (arrow heads) through the nuclear envelope
(in C), that of annulate lamellae (Al) surrounding a yolk granule (in D), and Balbianis vitelline bodies
(arrows) near cisternae of rough ER (double arrow) (in E). Scale bars, A, B: 5 um; C-E: 1 qm.
Figura 7. Ovocitos vitelogénicos de Perna perna. A-E. Ovocitos de estadio Cmostrando indentaciones cito-
plasmáticas (oi, o flechas) en sus nucleos. g, gránulos situados en el ooplasma; Li, gotitas de lipidos; *, a
gránulo densosin membrana. Nótese también una mancha electron lúcida (ng) en el núcleo (en A), un
gránulo de vitelo (Y) rodeado por un anillo de RE rugoso (en B), la presencia de numerosos poros (puntas de
flecha) atravesando la membrana nuclear (en C), la de laminillas anulares (Al) rodeando un gránulo de
vitelo (en D), así como los cuerpos vitelinos de Balbiani (flechas) cerca de cisternas del RE rugoso (flechas
dobles) (en E). Escalas, A, B: 5 ym; C-E: 1 yum.
13
Iberus, 28 (2), 2010
Figure 8. Vitellogenic oocytes (D stage) of Perna perna. A-B. Different shapes of the rough ER,
with a proliferation of lipid droplets near mitochondria (m) and rough ER cisternae (arrow heads).
da, dense granules; arrows, glycogen particles linked to lipid droplets; *, cortical granules (in B).
Scale bars, 1 um.
Figura 8. Ovocitos vitelogénicos (estadio D) de Perna perna. A-B. Distintas formas del RE rugoso, con
proliferación de gotitas de lípidos cerca de una mitocóndria (m) y cisternas del RE rugoso (puntas de
flecha). da, gránulos densos; flechas, partículas de glucógeno ligadas a gotitas de lípido; * gránulos corti-
cales (en B). Escalas, 1 um.
ous lipid vesicles. Some cortical gran-
ules (Fig. 6B) limited by an undulating
membrane, each containing a thin gran-
ular material (probably of glycopro-
teinic origin), were also observed near
the rough ER and the Golgi apparatus.
They are formed by an autosynthetic
way from these organelles. They became
progressively denser and were localized
at the periphery of the oocyte.
The mature oocytes (C stage)
reached 70 mm in size (Fig. 7A-E), while
their shape became pedunculate. They
were connected to follicular cells by
zonulae occludens and zonulae
adherens. In their nuclei (30 mm), the
ring- or crescent-shaped nucleolus was
dense and in an eccentric position, while
numerous pores through the nuclear
envelope could be observed. Deep cyto-
plasmic indentations (Fig. 7A-C) could
14
be seen in the nucleus, each containing
membrane-bounded lipid droplets and
other dense granules with no mem-
brane. The microvilli and the amor-
phous material constituted a vitelline
membrane, which became detached
later from the oocyte and thus created a
dense perivitelline space between the
oocyte and the vitelline membrane. The
lamellae of rough ER (Figs. 6-8) were of
variable forms (annulate, circular, ovoid,
flattened, or crescent-shaped) and were
often positioned near the nucleus. The €
oocytes contained the same organelles
as described for B cells. However, four
other structures, often positioned in the
vicinity of the rough ER and mitochon-
dria, could be noted. First, membrane-
bound lipid vesicles (0.8 mm) became
larger via their fusion (Fig. 9A). Sec-
ondly, other lipid inclusions (0.5 mm)
BENOMAR ET AL.: Ultrastructural study of oogenesis in the African mussel, Perna perna
Figure 9 A-E. Vitellogenic oocytes (D stage) of Perna perna, different types of granules. See the single mem-
brane-bounded lipid (Li) droplets (in A), several lipid inclusions with no membrane, near mitochondria
(m) and cisternae of rough ER (in B), some membrane-bounded inclusions containing a granular mate-
rial (*) and resulting from pinocytosis at the periphery of the ooplasm (arrow) (in A and C), several elec-
tron-lucent granules (IV), each showing two zones of different densities (d1, and d2) (in D), lipid
droplets, each linked to a particle of glycogen (arrows) (in E, see also Fig. 8B). Scale bars, 1 jm.
Figura 9 A-E.. Ovocitos vitelogénicos (estadio D) de Perna perna, distintos tipos de gránulos. Nótense las
gotitas de lípidos delimitadas por una membrana sencilla (Li) (en A), varias inclusiones de lípidos sin
membrana, cerca de mitocondrias (m) y cisternas de RE rugoso (en B), algunas inclusiones delimitadas por
membranas, conteniendo material granular (*%) y resultando de pinocitosis a la periferia del ooplasma
(flecha) (en A y C), varios gránulos electrón lucidos (IV), cada uno con dos zonas de densidad diferente
(41 y d2) (in D), gotitas de lípidos, cada uno ligado a una partícula de glucógeno (flechas) (en E, véase
también Fig. 8B). Escalas, 1 ym.
15
Iberus, 28 (2), 2010
e
Figure 10. Follicular cells of Perna perna. A-E Irregularly-shaped nuclei. g, granules; gl, particles of glycogen;
Li, lipid droplets; Ly, lysosomes; m, mitochondria; mf, myelin-like figures; N, nucleus; nu, nucleolus; RER,
cisternae of rough ER; SER, smooth ER. See also lipid droplets in the folicular cells (in D), the presence of
granules with two type of electron-lucent materials (in E), and a single inclusion containing a lipid droplet
and several glycogen particles forming a rosette (in F). Scale bars, A, B, E: 1 pm; C, D: 5 qm.
Figura 10. Células foliculares de Perna perna. A-E Núcleos con forma irregular. g, gránulos; gl, partículas de
glucógeno; Li, gotitas de lípidos; Ly, lisosomas; m, mitocóndria; mf. figuras con aspecto de mielina; N, núcleo;
nu, nucleolo; RER, cisternas del RE rugoso; SER, RE liso. Nótense también gotitas de lípidos en las células folic-
ulares (en D), la presencia de gránulos con dos clases de materiales electrón lucidos (en E), y una inclusión ais-
lada conteniendo una gotita de lípido y varias partículas de glucógeno formando una roseta (en E). Escalas,
ABE CAD ID
16
BENOMAR £7 AL.: Ultrastructural study of oogenesis in the African mussel, Perna perna
E
Ed $ SS ,
S EF
ESPA e
E
Figure 11. Septate desmosome (arrows) between two follicular cells of Perna perna. Scale bar, 1 um.
Figura 11. Desmosoma septado (flechas) entre dos células foliculares de Perna perna. Escala, 1 um.
with no membrane and showing a
denser peripheral condensation (Fig. 9B)
could be observed. Thirdly, membrane-
bound inclusions (Fig. 9C), containing a
granular material generally denser at
their periphery, resulted from pinocyto-
sis in the periphery of the ooplasm at
the end of vitellogenesis. These last
granules, which resulted from material
extracellular endocytosis contained thin
glycogen particles and were different
from the cortical granules, described in
the late previtellogenic oocytes. Lastly,
some granules contained two granular
materials, the first being more electron-
lucent than the other (Fig. 9D). All these
types of inclusions acted in the forma-
tion of yolk. Ringed lamellae, probably
deriving from the rough ER, sur-
rounded a big yolk granule or several
smaller vesicles sometimes with several
mitochondria, and developed in the
vicinity of lipid droplets (Fig. 7E). They
corresponded to Balbiani's vitelline
bodies (PIPE, 1987).
In spite of their polyhedral shape,
the D oocytes (postvitellogenic oocytes)
were deformed by the presence of other
oocytes in the lumen of the acinus. The
nuclear envelope showed numerous
pores and was very indented, while the
ring- or crescent-shaped nucleolus was
in an eccentric position. Numerous cor-
tical granules, numerous regular yolk
vesicles of variable density, and some
elycogen deposits linked to lipid
droplets (Fig. 9E) were found. In several
zones of the cytoplasm, are stacks of
rough ER parallel lamellae.
Follicular cells: During previtellogen-
esis, each oocyte was completely sur-
rounded by small and irregularly-
shaped follicular cells (Fig. 10A-D). Each
of these last cells contained a big
nucleus, of variable form, and projected
cytoplasmic extensions into the lateral
part of the oocyte. The follicular cells
were interconnected together by septate
desmosomes (Fig. 11). Their cytoplasm
also contained numerous stacks of
rough ER cisternae (or annulate lamel-
lae), a smaller zone of smooth ER,
numerous mitochondria, well-devel-
oped lysosomes, multivesicular bodies,
myelin-like figures, and small single or
clumped granules of glycogen, some-
times linked to lipid droplets (Fig. 10P).
Some other inclusions, each containing a
dense material and another more lucent
(Fig. 10E), were also present near lipid
droplets. The peripheral part of their
cytoplasm also contained some pinocy-
tosis vesicles, each containing a lipid
droplet and/or a glycogen granule (Fig.
5). When the oocyte was at the B stage
of vitellogenesis, the follicular cells
became detached from the apex of the
oocyte, which bulged freely into the
Iberus, 28 (2), 2010
acinar lumen and became pedunculate,
as it was still attached to the inner wall
of the acinus. At the C stage of vitelloge-
nesis, the follicular cells were reduced to
their basal part and, finally, became
completely detached from the oocyte.
In the spaces between the follicular
cells and the spindle-shaped cells, free
particles of glycogen were frequently
observed, particularly during previtello-
genesis (Fig. 5).
DISCUSSION
The female gamete formation in P.
perna was similar to that described in
other bivalvia, such as Brachidontes vig-
iliae (BERNARD, DAVIES AND HODGSON,
1988), Crassostrea virginica (ECKELBARGER
AND Davis, 1996), Mytilus edulis (ALBER-
TINI, 1985; PIPE 1987), Pecten maximus
(DORANGE AND LE PENNEC, 1989), Pinc-
tada margaritifera (lHIELLEY, 1993), or
Pinna nobilis (GAULEJAC, HENRY AND
VICENTE, 1995). The accumulation of
ribosomes and the presence of numer-
ous nuclear pores in previtellogenic
oocytes indicated a great synthesis of
proteins and an increased transport of
material. The perinuclear dense aggre-
gates present in the cytoplasm of these
oocytes might correspond to extruded
nucleolar material (especially ribonucle-
oproteins), as described by several
authors (ALBERTINI, 1985; DORANGE AND
LE PENNEC, 1989; THIELLEY, 1993;
GAULEJAC ET AL., 1995). The presence of
mitochondria in the stalk of the previtel-
logenic oocyte suggested a transfer of
material. However, the present study
did not allow us to observe micro-
tubules in this stalk, such as described
in the previtellogenic oocyte of Pinna
nobilis (GAULEJAC ET AL., 1995), or in that
of Anodonta (BEAMS AND SEKHON, 1966).
In the vitellogenic oocytes, the
growth of cytoplasm in volume was
mostly due to the accumulation of inclu-
sions. Among them, the cortical gran-
ules were found during all stages of
vitellogenesis and this finding agreed
with the report by GAULEJAC ET AL.
(1995) in Pinna nobilis. The nature of
18
their contents can only be speculated
upon based on morphological investiga-
tions. However, evidence for a glycopro-
teinic content is recognized in oocytes of
most bivalve species (e.g. ALBERTINI,
1985; GAULEJAC ET AL., 1995). According
to PIPE (1987), the number of these corti-
cal granules might increase via their
division. The formation of these cortical
granules involved the synthesis of yolk
materials by the proteosynthetic
organelles of the oocyte. This autosyn-
thetic-type formation has been
described in some molluscan species (DE
JONG-BRINK, BOER AND JOOSSE, 1983;
MEDINA, GARCIA, MORENO AND LOPEZ-
CAMPOS, 1986). The production of yolk
appears to involve the collaboration of
Golgi complexes and RER, as these
organelles were observed in close asso-
ciation with yolk bodies, as observed in
several mollusc species (ECKELBARGER
AND Davis, 1996; ECKELBARGER AND
YOUNG, 1997). The other types of inclu-
sions found in mature oocytes warrant
special comment. First, the two types of
lipid droplets, i.e. small inclusions with
no membrane and bigger, membrane-
bound inclusions, recorded in P. perna
might correspond to two successive
stages in the formation of these lipids
via the action of smooth ER, of Golgi
apparatus, of mitochondria, and of Bal-
biani's bodies (DE JONG-BRINK ET AL.,
1983). Thus, in the caenogastropod Colus
stimpsoni, West (1983) reported that
lipid formation derived from the
autosynthetic activities of the oocyte via
the endoplasmic reticulum. Secondly,
the granules, observed at the C stage of
vitellogenesis and containing two types
of electron-lucent materials, have not
been reported in the literature on
bivalvia. To explain this last finding, the
most likely hypothesis was to admit that
their contents would be of lipoproteinic
origin via the fusion of lipid droplets
and of proteins originating from rough
ER. Lastly, the inclusions resulting from
pinocytosis at the end of vitellogenesis
were also reported by several authors in
other species of molluscs (WesrT, 1981,
1983; DE JONG-BRINK ET AL., 1983; ECKEL-
BARGER AND BLADES-ECKELBARGER,
BENOMAR ET AL.: Ultrastructural study of oogenesis in the African mussel, Perna perna
1989; ECKELBARGER AND YOUNG, 1997).
Heterosynthetic process involved the
Golgi complex and RER on the one
hand, and endocytosis of extracellular
material on the other hand, so that lipid
reserves would be produced by the
oocyte and glycogen would be endocy-
tosed (West, 1981,1983). In fact, in P.
perna, the inclusions might originate,
either from spindle-shaped cells, which
contained glycogen deposits, or from
interacinar vesicular cells, which had
two types of granules. As free glycogen
particles could be seen in the intercellu-
lar spaces between the oocyte, the follic-
ular, and the spindle-shaped cells, it
might be hypothesized that the free par-
ticles would be pinocytosed by the cyto-
plasm of the vitellogenic oocyte, or by
that of follicular cells. Yolk synthesis in
P. perna was similar to that described in
other molluscs species (WEsT, 1983; Eck-
ELBARGER AND YOUNG, 1997). However,
this massive intake of exogenous sub-
stances in the ooplasm was probably not
the single way for the formation of yolk.
Indeed, the presence of glycogen parti-
cles, linked to lipid droplets, in the
ooplasm suggested that they might
form lipid-carbohydrate complexes, as
those described in the oocytes of Mytilus
edulis (ALBERTINI, 1985). Another way in
P. perna might be the direct transforma-
tion of mitochondria into yolk granules,
as reported in the oocytes of many
bivalve species (GAULEJAC ET AL., 1995).
The formation of the vitelline mem-
brane occurred during the B and C
stages of vitellogenesis, and the material
constituting it originated from the
oocyte (e.g. PIPE, 1987), the follicular
cells (DORANGE AND LE PENNEC, 1989),
or both. A part of this material might be
composed of the contents of cortical
granules, as ALBERTINI (1985) noted the
release of mucus from these granules in
the vitelline membrane surrounding the
oocyte of Mytilus edulis. The results
noted in the present study indicated the
material constituting the vitelline mem-
brane was produced by the oocyte. Our
results agreed with those of Wourms
(1987) on the fact that electron
microscopy reveals both microvilli and
an extracellular coat in the overwhelm-
ing majority of invertebrate oocytes.
The ultrastructural changes noted in
the atretic oocytes of P. perna were
similar to those noted in other species of
bivalvia, even though the outcome of
reserves in P. perna was different. The
accumulation of yolk granules consti-
tuted a dense mass, which is released in
the lumen of the acinus, and this
oosorption allowed the turn over of
nutrients to assure the energetic needs
for the bivalve basal metabolism (Hout-
TEVILLE, 1974). Another way for re-using,
oocyte remnants in P. perna was consti-
tuted by the epithelial cells bordering
the gonoducts, as that reported by PIPE
(1987) in Mytilus edulis, and also by the
follicular cells (see the review by DE
JONG-BRINK ET AL., 1983).
Some reports were already per-
formed on the relationship between the
follicular cells and the maturation of
oocytes in bivalvia. The presence of fol-
licular cells completely surrounding the
young oocyte and their detachment from
it in later stages were already reported in
many species (e.g. BERNARD ET AL., 1988;
GAULEJAC ET AL., 1995) and this finding
underlined the important role of these
cells in the growth of oocytes, and their
nutrition (DE JONG-BRINK ET AL., 1983).
Owing to their organelles, the follicular
cells had the capacity to participate in
the synthesis of many substances and to
phagocytose materials originating from
atretic or degenerating oocytes. The ex-
ogenous substances, which are intaken
by the oocyte of P. perna during vitello-
genesis via pinocytosis, might originate
from the secretions of these follicular
cells. The capacity of these last cells to
phagocytose the remnants of oocytes in
P. perna is reflected by the presence of
their well-developed lysosomes and of
deposits of lipid and glycogen deposits
in their cytoplasm. It is possible that
products originating from atretic oocytes
permitted a transfer of precursors neces-
sary for the vitellogenesis of other devel-
oping oocytes, and the synthesis and
storage of lipid and glycogen inclusions
which can be used later for vitellogene-
sis, as suggested by GAULEJAC ET AL.
19
Iberus, 28 (2), 2010
(1995) in Pinna nobilis. According to
WesT (1983), the follicular cells synthe-
siz-ed glycogen and the oocytes se-
questered it through an endocytotic
process.
The studies made by ID HALLA ET AL.
(1997) on the gonad of P. perna demon-
strated the presence of a single type of
reserve cells. However, in the present
work, lipid droplets and inclusions of
glycogen were present in reserve cells,
so that further studies are necessary to
determine if different types of reserve
cells exist in the gonad of P. perna or if
the cell found in the present study
shows different cellular stages which
succeed in relation to the reproductive
cycle of P. perna.
In conclusion, the formation of
female gametes in P. perna was greatly
similar to the oogenesis described in
other species of bivalvia and particu-
larly in Mytilidae. The only difference
BIBLIOGRAPHY
ALBERTINI L. 1985. Recherches cytologiques et ex-
périmentales sur l'ovogénese chez la moule,
(Mytilus edulis L., mollusque bivalve). Doc-
toral thesis, University of Caen, 147 p.
BEAMS H.W. AND SEKHON 5.5.1966. Electron
microscope studies on the oocyte of the
fresh-water mussel (Anodonta), with spe-
cial reference to the stalk and mechanism
of yolk deposition. Journal of Morphology,
119: 477-502.
BENOMAR S., BELHSEN O.K., GOUX D., MATHIEU
M. AND MOUKRIM A. 2007. Ultrastructural
studies on the spermatogenesis of the African
mussel Perna perna (Bivalvia: Mytilidae).
Iberus, 26(2): 1-14.
BERNARD R.T.F., DAVIES B.R. AND HODGSON
A.N. 1988. Reproduction in a brackish-water
mytilid: gametogenesis and embryonic de-
velopment. The Veliger, 30: 278-290.
BERRY P.F. 1978. Reproduction, growth, and
production in the mussel Perna perna, on the
east coast of South Africa. Investigational Re-
ports of the Oceanography Research Institute,
Durban, 48: 1-28.
DE JONG-BRINK M., BOER H.H. AND JOOSSE J.
1983. Mollusca. Chapter 14. In: Adiyodi KG,
Adiyodi RG, (eds.). Reproductive biology of
invertebrates. I. Oogenesis, oviposition, and
oosorption, John Wiley and Sons, New York,
pp. 297-355.
20
concerned the composition of the yolk
in the mature oocyte, as it was consti-
tuted of several endogenous substances
(lipoproteins mainly) and also of exoge-
nous materials intaken by the oocyte via
pinocytosis. In P. perna, vitellogenesis
combined both autosynthetic and het-
erosynthetic processes, and involved the
Golgi complex and RER on the one
hand, and endocytosis of extracellular
material on the other hand. Further
studies are necessary to investigate the
composition of vitelline granules in the
oocytes using cytochemical methods
and transmission electron microscopy.
ACKNOWLEDGEMENTS
The authors are grateful to Ms. A.M.
Renou and Mr. D. Goux for the realiza-
tion of ultrathin sections and Mr. J.L.
Herblot for photographic services.
DORANGE G. AND LE PENNEC M. 1989. Ultra-
structural study of oogenesis and oocytic de-
generation in Pecten maximus from the Bay of
St. Brieux. Marine Biology, 103: 339-348.
ECKELBARGER K.J. AND BLADES-ECKELBARGER
P.I. 1989. Structure of the ovotestis and evi-
dence for hetero synthetic incorporation of
yolk precursors in the oocytes of the nudi-
branch Mollusc, Spurilla neapolitana. Journal
of Morphology, 201: 105-118.
ECKELBARGER K.J. AND Davis C.V. 1996.
Ultrastructure of the gonad and gametogenesis
in the eastern oyster, Crassostrea virginica. L.
Ovary and oogenesis. Marine Biology, 127: 79-87.
ECKELBARGER K.] AND YOUNG C.M. 1997. Ul-
trastructure of the ovary and oogenesis in the
dmethane-seep mollusc Bathynerita naticoidea
(Gastropoda: Neritidae) from the Louisiana
slope. Invertebrate Biology, 116 (4): 299-312.
GAULEJAC B. DE, HENRY M. AND VICENTE N.
1995. An ultrastructural study of gametoge-
nesis of the marine bivalve Pinna nobilis (Lin-
naeus 1758). I. Oogenesis. Journal of Mollus-
can Studies, 61: 375-392.
Hicks D.W., TUNNELL J.W. JR AND MCMAHON
R.F. 2001a. Population dynamics of the non-
indigenous brown mussel, Perna perna (Lin-
naeus 1758), in the Gulf of Mexico compared
to other world-wide populations. Marine
Ecology Progress Series, 211: 181-192.
BENOMAR ET AL.: Ultrastructural study of oogenesis in the African mussel, Perna perna
Hicks D.W., MCMAHON R.F. AND INGRAO D.A.
2001b. Two invasive mussels in the genus
Perna in the Gulf of Mexico. In: Virtual Pro-
ceedings for the State of the Bay Symposium
V,31 January-2 February 2001. Texas Natural
Resource Conservation Commission, Austin,
Texas, pp. 159-170.
HOUTTEVILLE P. 1974. Contribution a l'étude
cytologique et expérimentale du cycle du
tissu de réserve du manteau de Mytilus edulis.
Doctoral thesis, University of Caen.
ID HALLA M., BOUHAIMI A., ZEKHNINI A., NAR-
BONNE J.F., MATHIEU M. AND MOUKRIM A.
1997. Etude du cycle de reproduction de
deux especes de moules Perna perna (Linné,
1758) et Mytilus galloprovincialis Lamarck,
1819 dans la baie d'Agadir (Sud du Maroc).
Haliotis, 26: 51-62.
LasraK T. 1986. The reproductive cycles of the
intertidal bivalves Crassostrea cucullata (Born,
1778) and Perna perna (Linnaeus, 1758) from
Transkei coast, Southern Africa. The Veliger,
29: 226-230.
MEDINA A., GARCIA J.C., MORENO F.J. AND
LOPEZ-CAMPOSJ.P. 1986. Comparative stud-
ies on the histology of the ovotestis in
Hypselodoris tricolor and Godiva banyulensis
(Gastropoda, Opistothobranchia), with spe-
cial reference to yolk formation. Journal of
Morphology, 186: 105-118.
PrPE R.K. 1987. Oogenesis in the marine mus-
sel Mytilus edulis: an ultrastructural study.
Marine Biology, 95: 405-414.
SCHURINK C.E. AND GRIFFITHS C.L. 1991. A com-
parison of reproductive cycle s and repro-
ductive output in four Southern African mus-
sel species. Marine Ecology Progress Series, 76:
123-134.
THIELLEY M. 1993. Etude cytologique de la
gamétogenese, de la sex-ratio et du cycle de
reproduction chez l'huítre perliere Pinctada
margaritifera (L) var. cumingí (Jameson), (Mol-
lusque, bivalves). Comparaison avec le cycle
de Pinctada maculata (Gould). Doctoral the-
sis, Université Francaise du Pacifique, 233p..
WEsT D.L. 1981. Reproductive biology of Colus
stimpsoni (Prosobranchia: Buccinidae). IV.
Oogenesis. The Veliger, 24: 28-38.
WesT D.L. 1983. Reproductive biology of Colus
stimpson1 (Prosobranchia: Buccinidae). V. Nu-
tritive egg formation. The Veliger, 25: 299-
306.
WOURMS J.P. 1987. Oogenesis. In Giese A.C,,
Pearse J.S. and Pearse V.B. (Eds.): Reproduc-
tion of marine Invertebrates, Vol. IX, General
aspects: seeking unity in diversity: 50-157.
Blackwell Scientific Publications and Box-
wood Press, Pacific Grove, California.
2
O Sociedad Española de Malacología —_—_——— lberus, 28 (2): 23-38, 2010
New species of Mollusca Solenogastres from the
Bell" -"shausen Sea and the Antarctic Peninsula (Bentart-
2006 Expedition)
Nuevas especies de Moluscos Solenogastres del Mar de
Bellingshausen y Península Antártica (Expedición Bentart-2006)
Oscar GARCÍA-ÁLVAREZ*, María ZAMARRO** and Victoriano
URGORRI**
Recibido el 27-IV-2010. Aceptado el 31-X-2010
ABSTRACT
The Bentart Projects aim to study the benthos of West Antarctica (South Shetland
Islands, Antarctic Peninsula and Bellingshausen Sea). In this paper, one genus and two
species new to science (Neomenia expleta sp. nov. and Plicaherpia papillata gen. and
sp. nov.), as well as an incomplete juvenile of Phyllomenia sp. and an anterior body of
Amboherpia sp. are studied, all collected during the expedition Bentart-2006 to the
Antarctic Peninsula and Bellingshausen Sea and belonging to the families: Neomeni-
idae lhering, 1876, Phyllomeniidae Salvini-Plawen, 1978 and Acanthomeniidae
Salvini-Plawen, 1978.
RESUMEN
Los proyectos Bentart tienen como objetivo el estudio del bentos en la Antártida del Oeste
(Islas Shetland del Sur, Península Antártica y Mar de Bellingshausen). En este artículo se
estudian un género y dos especies nuevas para la ciencia (Neomenia expleta sp. nov. y
Plicaherpia papillata gen. y sp. nov.), así como un juvenil incompleto de Phyllomenia sp. y
la parte anterior de Amboherpia sp., recogidas durante la expedición Bentart-2006 en la
Península Antártica y Mar de Bellingshausen, y pertenecientes a las familias: Neomenii-
dae lhering, 1876, Phyllomeniidae Salvini-Plawen, 1978, and Acanthomeniidae Salvini-
Plawen, 1978.
INTRODUCTION
During the Spanish expedition the area of the Antarctic Peninsula and
Bentart-2006 for the study of Antarctic its adjacent islands some research had
benthos to the Antarctic Peninsula and already been done regarding these Mol-
Bellingshausen Sea, a small collection of lusca, with the result of about 30
Mollusca Solenogastres was made. In described species, whereas the know-
* Estación de Bioloxía Mariña da Graña. Universidade de Santiago de Compostela. A Graña. 15590 Ferrol.
Spain. ogarcia.alvarezGedu.xunta.es
** Departamento de Zooloxía e Antropoloxía Física. Facultade de Bioloxía. Universidade de Santiago de
Compostela. Campus Sur s/n. 15782 Santiago de Compostela. Spain.
23
Iberus, 28 (2), 2010
ledge of the Solenogastres fauna in the
Bellingshausen Sea is very poor, with
only four known species (GARCÍA-
ÁLVAREZ AND |URGORRL, 2003a, b;
GARCÍA-ÁLVAREZ, ZAMARRO AND
URGORRI, 2009; SALVINI-PLAWEN, 1978).
In this study four specimens from
Bentart-2006 are studied, one collected
in the Antarctic Peninsula and three in
the Bellingshausen Sea, belonging to
the families Neomeniidae lhering,
1876, Phyllomeniidae Salvini-Plawen,
1978, and Acanthomeniidae Salvini-
Plawen, 1978 and among which we
recognize one genus and two species
new to science. We also provide data
about an incomplete juvenile of Phyl-
lomenia sp. and an anterior body of
Amboherpia sp.
The biodiversity of the Mollusca
Solenogastres is still very little known;
about 260 species have been described
so far, which represent about 40% of the
total of the species estimated to exist
this group of Mollusca. In particular, the
Antarctic Ocean is the best known geo-
graphical area concerning the
Solenogastres fauna, as approximately
45% of the described species are Antarc-
tic or Subantarctic. So far, the research of
the Bentart collection from the four
expeditions carried out to the South
Shetland Islands, Antarctic Peninsula
and Bellingshausen Sea, has resulted in
the study of 14 species of Solenogastres
(including those described here), 9 of
which were new species to science, 2
were innominate species and only 3
were already known species (GARCÍA-
ÁLVAREZ AND URGORRI, 2003a; GARCÍA-
ÁLVAREZ ET AL., 2009). These facts
clearly support the idea that the biodi-
versity of these Mollusca is still poorly
known.
One of the greatest difficulties
which hampers the study of Solenogas-
tres is the scarcity of research material,
as can be observed in most publications
about this topic and as also happens in
the study of the Bentart collection. It is
very common to have only very few
specimens available or even a single
specimen for the characterization of the
new species. This is due to the fact that
24
a high percentage of the samples of
Solenogastres come from studies
directed to the knowledge of the
general marine benthos, for which the
sampling methods used are not the
most appropriate for the collection of
small-sized fauna. When the capture
systems used while sampling are more
appropriate for the study of meiofauna,
as for example epibenthic sleds, the
results are different. These sampling
systems are being systematically used,
both in the expeditions for the study of
the Atlantic abyssal basin and in the
expeditions we are carrying out off the
northwest coast of Spain. In both pro-
jects, in which a priority objective is the
knowledge of the deep-sea biodiversity,
the results obtained in the collection of
small fauna are very satisfactory and a
large number of specimens of
Solenogastres were collected (GIL-MAN-
SILLA, GARCÍA-ÁLVAREZ AND URGORRI,
2008, 2009).
MATERIAL AND METHODS
The four specimens studied were
collected during the expedition Bentart-
2006, which was carried out on board
the BIO Hespérides with an Agassiz
trawl in January-February 2006 in the
Bellingshausen Sea and the Antarctic
Peninsula, with five stations sampled.
Specimens were fixed and preserved in
70% ethanol. For the study of sclerites,
small pieces of cuticle of the dorsal
middle part of the body and of the
ventral groove were separated. These
pieces were treated with sodium
hypochlorite at 5% for 12 hours to
isolate the sclerites. They were then
washed in water, dried in a drying
chamber at 40"C and mounted on
Canada balsam. For their anatomical
study, specimens were decalcified in an
EDTA solution for 12 hours, included in
paraffin, cut in transverse series of 5 and
10 um in section, and stained in Azan
and Mallory trichromic. Reconstruction
of the internal anatomy of their anterior
and posterior body was performed
manually.
GARCÍA-ÁLVAREZ ET AL.: Solenogastres from the Bentart-2006 Expedition
SYSTEMATICS (see GARCÍA-ÁLVAREZ AND SALVINI-PLAWEN, 2007)
Order NEOMENIAMORPHA Salvini-Plawen, 1978
Family NEOMENIIDAE lhering, 1876
Genus Neomenia Tullberg, 1875
Neomenia expleta sp. nov. (Figs. 1, 2)
Type material: Holotype 1 specimen, cut in serial sections. Antarctic Peninsula. (Bentart-2006,
Station PA 42; coordinates: 65.16654” S; 68.9364” W). Water depth: 1272 m. The holotype (cut in
serial sections) is deposited in the Museo Nacional de Ciencias Naturales of Madrid, namber MNCN
02/26:
Etymology: Latin, expletus = completed, finished, achieved. Regarding its complete anatomical
organization.
Diagnosis. Specimen 3.4 cm x 0.95 cm
with 5-7 longitudinal keels. Cuticle 270
um thick. Three types of sclerites with
radial insertion: groove-shaped sclerites
without spear-shaped distal end; solid,
slightly bent needles; and solid blade-
shaped scales. Pedal groove with 25-35 cil-
iated folds that do not get into the pallial
cavity. Separate cerebral connectives.
Pharynx with three regions. Posterior
midgut with a pair of short ventrolateral
caeca that surround the copulatory stylets.
Seminal vesicles and seminal receptacle
present. Opening of the paired spawning
duct into a genital pouch. Spawning duct
gland and stylet gland present. Supra-
pallial glands present. Two pairs of cop-
ulatory stylets. Prepallial spicules absent.
Number of respiratory folds 40-45. A dor-
soterminal sense organ prsent.
Description. Habitus. The specimen
is 3.4 cm long, 0.95 cm thick in its
middle area, narrower in its anterior
and posterior parts, with 5-7 dorsal and
lateral longitudinal keels, little marked
(Fig. 1A). The pedal groove and the atri-
obuccal and pallial cavities are well-
marked. Colour in alcohol is brown.
Mantle. The cuticle is thick, up to 270
mm with globular to club-shaped epi-
dermal papillae. the matrix is up to 575
mm thick. There are three types of scle-
rites with radial insertion (Fig. 1B):
groove-shaped sclerites without spear-
shaped distal end (up to 290 mm long x
20 mm wide) dorsally more abundant;
solid, slightly bent needles (up to 260
mm long) and solid blade-shaped scales
(up to 125 mm long).
Pedal groove and pallial cavity. The
pedal groove bears 25-35 ciliated folds
that do not reach into the pallial cavity.
The pallial cavity occupies a subtermi-
nal position and has 40-45 ciliated respi-
ratory folds, long and narrow and radi-
ally arranged (Figs. 1D, 2A) in the dor-
soposterior region; many folds have
abundant yellow dyed secretory gran-
ules in their distal region. The pallial
cavity has dorsally circular musculature
and suprapallial glands (Fig. 1D). The
pallial cavity forms in its ventroanterior
region a genital pouch (Figs. 1D, 2B),
into which both spawning ducts come
out independently in its dorsolateral
region (Fig. 2B). Both pairs of copula-
tory stylets also come out ventrolater-
ally into this pouch (Fig. 1D).
Digestive system (Fig. 1C). The mouth
opens into the atrium, which is pro-
vided with papillae arranged in
bundles. Three regions can be distin-
guished lengthwise in the pharynx. The
first one bears 2 to 4 dorsal folds with
folded walls; one of these folds sepa-
rates mediofrontally the mouth from the
anterior part of the atrium and a ventral
fold is separated from the ventral wall
of the digestive tract by a cleft. The folds
make this first region of the pharynx lat-
erally narrow and form small lateral
caeca. The pharynx is internally covered
in this region with a thin cuticle that
continues in the second pharyngeal
region; all walls are folded and it lacks
glands. It has no defined buccal tube
and lacks a buccal sphincter. In the
second region, the pharynx narrows
23
Iberus, 28 (2), 2010
dorsoventrally and lacks glands,
frontally two caeca come out from it: a
dorsoanterior one and a ventral one. In
this area it has a dorsal wall without
folds and with a very soft musculature,
its ventral wall is folded and provided
with a thick muscular layer; this ventral
muscular layer becomes very weak pos-
teriorly. The third region is character-
ized by presenting a strong sphincter
and a folded interior wall, it opens
frontally into the intestine, which it
clearly penetrates. It lacks a radular
system and ventral foregut glandular
organs. The intestine has a short dor-
soanterior caecum and a strong serial
fold due to the dorsoventral muscula-
ture. Posteriorly, a pair of short ventro-
lateral caeca come out from the intes-
tine; each of them surround a pair of
copulatory stylets (Figs. 2E, F). The
rectum is short and tubular; its interior
wall is folded and ciliated. The anus
opens dorsally on the frontal wall of the
pallial cavity, flanked by respiratory
folds.
Nervous system and sense organs (Figs.
1C, D). The cerebral ganglion is flat and
relatively large (750 mm long, 360 mm
high), several pairs of nerves come out
from it to the atrial region and two pairs
of independent connectives come out
from its posterior region. The pair of
ventral ganglia is located ventrolaterally
in the anterior part of the pharyngeal
region of the sphincter and is joined to
the digestive tract by a ventral commis-
sure. Both buccal ganglia are very small
and located ventrolaterally to the pha-
ryngeal region of the sphincter. The pos-
terior part of the body possesses two
pairs of thick ganglia, a ventral one and
a lateral one. The supra-rectal commis-
sure is wide and long and located dor-
sally to the pallial cavity, immediately
posterior to the position of the anus. The
atrial sense organ is provided with
dense bundles of thin, basally joined
papillae, mostly in dorsal and lateral
positions. A dorsoterminal sense organ
is located in the posterior end of the
body.
Reproductive system (Fig. 1D) A pair
of tubular and narrow gonads is located
26
on both sides of the dorsal blood sinus,
no oocytes are observed, but they
present spermatozoids in the posterior
part close to the pericardium, in this
region the gonads are provided with
some small ventrolateral pouches, in
which spermatozoids can be observed
and which can be interpreted as seminal
vesicles. The pericardium is voluminous
and contains a very large heart joined to
the pericardium wall only through its
anterior and posterior ends; the heart is
divided into two parts, a ventricle and
an auricle. The pericardioducts come
out ventrolaterally from the posterior
part of the pericardium, they consist of a
pair of narrow and internally folded
ducts that run ventrolaterally to the
pericardium and the digestive duct and
present a pair of small seminal vesicles
almost spherical (Fig. 2C) with sperma-
tozoids, before joining the spawning
ducts. The pair of spawning ducts is
narrow and sinuous, not very glandular
and come out dorsolaterally and sepa-
rately into a ventral genital pouch of the
pallial cavity (Fig. 2B). Each spawning
duct has a narrow and sinuous seminal
receptacle, located in the opening area
of the pericardioducts into the spawn-
ing ducts as well as a spawning duct
gland with glandular epithelium that
comes out into the medial area of the
spawning duc:t.
The copulatory system is paired,
each part is made up of two stylets
(Figs. 2E, F): a groove-shaped stylet and
a Spine within a common sheath; they
are surrounded by the ventrolateral
caeca of the intestine. Each pair of copu-
latory stylets is connected to a gland
(stylet gland) that opens in the distal
end of the stylets and from which a
narrow duct comes out to the distal end
of the spawning duct (Fig. 2D). No pre-
pallial spines are present.
Discussion. Eighteen species of the
genus Neomenia are described at present.
Among the combination of characteris-
tics that distinguish Neomenia expleta sp
nov. from the other species in this
genus, we should highlight the follow-
ing for their specific nature: presence of
keels (having keels: N. carinata Tullberg,
GARCÍA-ÁLVAREZ ET AL.: Solenogastres from the Bentart-2006 Expedition
Figure 1. Neomenia expleta sp. nov. A: habitus; B: mantle sclerites; C: schematic organization of the
anterior body; D: schematic organization of the posterior body. Abbreviations, At: atrial sense organ;
Bg: buccal ganglion; Bm: posterior caecum of midgut; Cg: cerebral ganglion; Cs: copulatory stylet;
De: dorsal caecum; Dso: dorsoterminal sense organ; Gp: genital pouch; Ht: heart; Mg: midgut; Mu:
musculature; Pc: pallial cavity; Pd: pericardioduct; Ph: pharynx; Pr: pericardium; Rf: respiratory folds;
Sc: suprarectal commissure; Sd: spawning duct; Sdg: spawning duct gland; Sg: copulatory stylet gland;
Sp: sphincter; Spg: suprapallial gland; Sr: seminal receptacle; Sv: seminal vesicle; Vg: ventral ganglion.
Figura 1. Neomenia expleta sp. nov. A: habitus; B: escleritos del manto; C: esquema de la organización
de la parte anterior del cuerpo; D: esquema de la organización de la parte posterior del cuerpo. Abre-
viaturas, Át: órgano sensitivo atrial; Bg: ganglio bucal; Bm: ciego posterior del intestino; Cg: ganglio
cerebral; Cs: estilete copulador; Dc: ciego dorsal; Dso: órgano sensitivo dorsoterminal; Gp: bolsa genital;
Ht: corazón; Mg: intestino; Mu: musculatura; Pc: cavidad paleal; Pd: pericardioducto; Ph: faringe; Pr:
pericardio; Rf: pliegues respiratorios; Sc: comisura suprarrectal; Sd: conducto de desove; Sdg: glándula
del conducto de desove; Sg: glándula del estilete copulador; Sp: esfínter; Spg: glándula suprapaleal; Sr:
receptáculo seminal; Sv: vesícula seminal; Vg: ganglio ventral.
2
Iberus, 28 (2), 2010
Figure 2. Neomenia expleta sp. nov. A: respiratory folds; B: spawning duct opening; C: seminal
vesicle; D: copulatory stylet gland; E: copulatory stylet; EF: posterior caecum of midgut. Abbrevia-
tions, Bm: posterior caecum of midgut; Cs: copulatory stylet; Gp: genital pouch; Mg: midgut; Pc:
pallial cavity; Pd: pericardioduct; Rf: respiratory folds; Sd: spawning duct; Sdg: spawning duct
gland; Sg: copulatory stylet gland; Sr: seminal receptacle; Sv: seminal vesicle. Scale bars, 200 um.
Figure 2. Neomenia expleta sp. nov. A: pliegues respiratorios; B: abertura del conducto de desove; C: vesícula
seminal; D: glándula del estilete copulador; E: estilete copulador; E- ciego posterior del intestino. Abreviaturas,
Bm: ciego posterior del intestino; Cs: estilete copulador; Gp: bolsa genital: Mg: intestino; Pc: cavidad paleal;
Pd: pericardioducto; Rf. pliegues respiratorios; Sd: conducto de desove; Sdg: glándula del conducto de desove;
Sg: glándula del estilete copulador; Sr: receptáculo seminal; Sv: vesícula seminal. Escalas, 200 ym.
1875, N. labrosa Salvini-Plawen, 1978, N. Gausch, 2004 and N. trivialis Salvini-
trapeziformis Salvini-Plawen, 1978, N. Plawen and Paar-Gausch, 2004); lacking
megatrapezata Salvini-Plawen and Paar- distally spear-shaped sclerites (having
28
GARCÍA-ÁLVAREZ ET AL.: Solenogastres from the Bentart-2006 Expedition
Table I. Differences between genera of the family Phyllomeniidae (+ present; - absent).
Table 1. Diferencias entre los géneros de la familia Phyllomentidae (+ presente; - ausente).
Phyllomenia Harpagoherpia Lituiherpia Ocheyohempia Plicaherpia gen.nov.
Aciculare * + + + 4 ze
Paddle-shupeu >uerites + - de a 4
Hook-shaped sclerites + 4 +
Groove-shaped scales - - , si
Atrio-buccal oppening Separated Separated Common Common Common
Midgut constrictions + - + ji se
Gonoducts + - z S E
Genital opening Paired Unpaired Unpaired Unpaired Unpaired
Genital papilla - - - y +
Copulatory stylets + p A
Copulatory stylets gland +
Cammera pallial cavity One One One One Two
Respitary organs - - : Z +
Dorsoterminal sense organ - + z
these sclerites: N. carinata, N. trapezi-
formis Salvini-Plawen, 1978 and N.
naevata Salvini-Plawen and Paar-
Gausch, 2004); presence of anterior cleft
in ventral pharynx (having ventral cleft:
N. carinata and N. crenagulata, Salvini-
Plawen, 1978); presence of separate cere-
bral connectives (present in: N. oscari
Salvini-Plawen, 2006, N. simplex Salvini-
Plawen, 2006 and partly N. herwig1
Kaiser, 1976); presence of suprapallial
glands (present in: N. verrilli Heath,
1918 and N. naevata); presence of midgut
caecum (present in: N. microsolen Wirén,
1892); presence of latero-terminal
mideut saes (present Um. UN.
megatrapezata, N. trivialis and N. oscari).
(GARCÍA-ÁLVAREZ AND URGORRI, 2003a;
SALVINI-PLAWEN, 1978, 2006; SALVINI-
PLAWEN, AND PARA-GAUSCH, 2004 see
Table 1)
Five species of the genus Neomenia
can be found in the same biogeographi-
cal range (García-Álvarez and Urgorri,
2003a; Salvini-Plawen, 1978, 2006),
Antarctic Peninsula and adjacent
islands, together with Neomenia expleta
sp nov.. These are N. labrosa Salvini-
Plawen, 1978; N. laminata Salvini-
Plawen, 1978; N. monolabrosa Salvini-
Plawen, 2006; N. megatrapezata; and N.
trivialis. Each of these species has a
series of characteristics that clearly dis-
tinguish them from Neomenia expleta sp
nov.
N. labrosa (South Shetland Islands,
220-240 m. deep), has an anterior cleft in
the lateral pharynx; it lacks a terminal
foregut sphincter, a midgut caecum and
lateroterminal midgut sacs in the diges-
tive duct; the opening of the spawning
duct is unpaired; it possesses prepallial
spines and a subvaginal epithelial gland
and lacks both seminal vesicles and
suprapallial glands (SaLvINI-PLAWEN,
1978, 2006).
In N. laminata (South Orkney
Islands, 298-302 m. deep) some anatomi-
cal data about its posterior part remain
unknown; it has no pharyngeal lip for-
mation, is provided with 4 foregut
regions and lacks a terminal foregut
sphincter and lateroterminal midgut
sacs (SALVINI-PLAWEN, 1978, 2006).
Of N. monolabrosa (South Shetland
Islands, 80 m deep) only the anterior
part is known; it has a 30-50 mm
cuticle, has an anterior cleft in the
lateral pharynx, 4 foregut regions and
no midgut caecum (GARCÍA-ÁLVAREZ
AND URGORRI, 2003a; SALVINI-PLAWEN,
2006).
29
Iberus, 28 (2), 2010
N. megatrapezata (South Shetland
Islands, 640-670 m deep) can reach 18
cm long and has 4 well-marked longitu-
dinal ridges; it possesses an anterior
cleft in the lateral pharynx, 4 foregut
regions and lacks a midgut caecum, the
opening of the spawning duct is
unpaired; it has prepallial spines and
genital papilla and has neither seminal
vesicles nor suprapallial
(SALVINI-PLAWEN, 2006).
N. trivialis (South Shetland Islands,
640-670 m deep) has no pharyngeal lip
formation, lacks a midgut caecum,
seminal vesicles and suprapallial glands;
the opening of the spawning duct is
unpaired and it possesses prepallial
spines (SALVINI-PLAWEN, 2006).
glands
Order STERROFUSTIA Salvini-Plawen, 1978
Family PHYLLOMENIIDAE Salvini-Plawen, 1978
Genus Phyllomenia Thiele, 1913
Phyllomenia sp. (Figs. 3, 4)
Material examined: 1 specimen, cut in serial sections. Bellingshausen Sea. (Bentart-2006, Station
MB 34; coordinates: 70.12258” S; 84.8682” W). Water depth: 603 m. Only the posterior part of the
body could be studied and reconstructed, as the anterior part was histologically strongly damaged.
Description. Habitus. The specimen
is elongated, 8 mm long by 0.85 mm
thick in its middle area, of circular
section, with an anterior end 0.6 mm
thick and a posterior one 0.58 mm thick.
There are no longitudinal keels or
swellings, the anterior end is truncated
and the posterior end slightly acumi-
nated (Fig. 3A). There are well-marked
atriobuccal cavity, pedal groove and
pallial cavity. The interwoven sclerites
do not protrude from the cuticle. Colour
in alcohol is white. A dorsoterminal
sense organ is present at the posterior
end of the body.
Mantle. The cuticle is thin, 30-40 mm
thick in the lateral areas of the body and
50-60 mm thick in the dorsal area, with
several layers of interwoven tangential
sclerites. Five types of sclerites can be
seen (Fig. 3B): solid acicular with
pointed distal end and rounded proxi-
mal end slightly sigmoid (200 mm long
x 15 mm wide); narrow solid paddle-
shaped sclerites (230 mm long x 15 mm
wide); wide solid paddle-shaped scle-
rites (200 mm long x 32 mm wide). Both
types of solid paddle-shaped sclerites
are abundant in the ventral area on both
sides of the pedal groove; elongated and
wide scales with a very pointed distal
end and a straight proximal one (100
mm long x 30 mm wide) located above
30
all in its anterior end, atriobuccal cavity
and pedal groove; blade-shaped scales
(75 mm long x 13 mm wide).
Pedal groove and pallial cavity. The
pedal groove bears a ciliated fold that
gets into the pallial cavity. The pallial
cavity is in subterminal position, it is
small, without cilia on its epithelium
and has no respiratory folds (Fig. 3C).
The rectum is short and opens through a
wide and circular anus located in the
dorsoanterior wall of the pallial cavity.
Both spawning ducts come out sepa-
rately through a pair of narrow grooves
located on the ventral wall of the pallial
cavity. It has three pairs of copulatory
stylets and abdominal spicules in a pair
of small pouches located on both lateral
walls of the pallial cavity.
Reproductive system (Fig. 3C). It has a
pair of gonads, from which two long
and narrow real gonoducts (350 mm
long x 10-25 mm wide) come up, they
run laterally to the pericardium until
they join the proximal end of the peri-
cardioducts (Fig. 4). The pericardium is
short and wide; anteriorly it is blind,
posteriorly two blind extensions come
up from it and it extends dorsolaterally
on both sides of the rectum, it lacks cilia
on its interior epithelium and the dorsal
blood sinus comes out into the dorsoan-
terior part of the pericardium. The heart
GARCÍA-ÁLVAREZ ET AL.: Solenogastres from the Bentart-2006 Expedition
Figure 3. Phyllomenta sp. A: habitus; B: mantle sclerites; C: schematic organization of the posterior
body. Abbreviations, Asp: Abdominal spicules pouch; Cs: copulatory stylet; Dso: dorsoterminal
sense organ; Gd: gonoduct; Go: gonad; Ht: heart; Mg: midgut; Pc: pallial cavity; Pd: pericardiod-
uct; Pr: pericardium; Sd: spawning duct.
Figure 3. Phyllomenia sp. A: habitus; B: escleritos del manto; C: esquema de la organización de la
parte posterio del cuerpo. Abreviaturas, Asp: bolsa de espículas abdominales; Cs: estilete copulador; Dso:
órgano sensitivo dorsoterminal; Gd: gonoducto; Go: gónada; Ht: corazón; Mg: intestino; Pc: cavidad
paleal; Pd: pericardioducto; Pr: pericardio; Sd: conducto de desove.
Figure 4.- Phyllomenia sp. Union of gonoduct and pericardioduct. Gd — gonoduct; Pd — pericar-
dioduct; Pr - pericardium; Re — rectum.
Figure 4.- Phyllomenia sp. Unión del gonoducto y del pericardioducto. Gd — gonoducto; Pd — pericar-
dioducto; Pr - pericardio; Re — recto.
3]
Iberus, 28 (2), 2010
hangs from the dorsal wall of the peri-
cardium; anteriorly it is narrow and
little lobulate (ventricle), posteriorly it is
wide and extensively bilobulate (auri-
cles). The pair of pericardioducts come
up on both sides of the medial area of
the pericardium, where they join the
gonoducts (Fig. 4), they are short and of
circular section and extend ventrally
until they come out laterally into the
spawning ducts, near the opening of
these ducts into the pallial cavity. Both
spawning ducts are tubular and nar-
rower in their anterior half, posteriorly
they get wider and come out separately
through a short and narrow duct onto
the ventral wall of the pallial cavity. It
has three pairs of copulatory stylets
located ventrolaterally to the spawning
ducts, each group bears musculature
and the three stylets; each is located dor-
sally to the other; they are short, flat and
wide (80-100 mm long x 10-12 mm high
x 40 mm wide).
Remarks. The organization of the
anterior part of the body is unknown.
However, its size (8 mm long, 0.85 mm
thick) and the combination of sclerites
and caracters of the posterior part of the
body identify the specimen hereby
studied as a juvenile individual of genus
Phyllomenia. Two species are described
in the genus Phyllomenia Thiele, 1913
(GARCÍA-ÁLVAREZ AND SALVINI-PLAWEN,
2007): Phyllomenia austrina present in
different locations of the Antarctic
Ocean (South Sandwich Island, Brans-
field Strait, Ross Sea and Davis Sea),
148-465 m deep; and Phyllomenia cornu-
adentata Salvini-Plawen, 1978, present in
Tierra del Fuego (South America), 384-
903 m deep. Both species have a
complex and very similar organization
of the pallial cavity and a gonopericar-
dial system that changes as specimens
become mature. In young specimens,
the organization of the posterior part of
the body is very similar to the rest of
species of Solenogastres (SALVINI-
PLAWEN, 1978), while adults develop
from the pallial cavity and the spawning
duct, a set of pouches, of which the
function and relationship to the struc-
tures they originate from, are only par-
tially known (SALVINI-PLAWEN, 1970,
1978; THIELE, 1913).
Genus Plicaherpia gen. nov.
Diagnosis. Solid acicular sclerites com-
bined with hook-shaped solid sclerites and
elongated groove-shaped scalesina layer.
With common atrio-buccal opening.
Midgut with constrictions. Unpaired gen-
ital opening with genital papilla. Pallial
cavity with two chambers. Coputatory
stylets absent. Respiratory organs pre-
sent. Dorsoterminal sense organ absent.
Etymology. Latin, plicare = to fold.
Greek, herpeton = to slither. Concerning
the fact that it has respiratory folds.
Plicaherpia papillata sp. nov. (Fig. 5)
Type material: Holotype: 1 specimen, cut in serial sections. Bellingshausen Sea. (Bentart-2006,
Station MB 34-2; coordinates: 70.11620* S; 84.8604” W). Water depth: 603 m. Holotype (cut in
serial sections) deposited in the Museo Nacional de Ciencias Naturales of Madrid, number
MNCN 15.02/27.
Etymology: Latin, papilla = papilla; -atus = provided with. Concerning the fact that it has genital
papilla.
Diagnosis. Specimen 2 mm x 0.77
mm, without longitudinal keels or
swellings. Cuticle 10-20 mm thick. Four
types of solid sclerites: slightly curved
acicular; hook-shaped; long and narrow
32
groove-shaped scales, with a very
pointed distal end, and long and wide
groove-shaped scales. Pedal groove
with a fold that does not reach into the
pallial cavity. Radula with 2 medial den-
GARCÍA-ÁLVAREZ ET ALz.: Solenogastres from the Bentart-2006 Expedition
S0 um
Figure 5. Plicaherpia papillosa gen. and sp. nov. A: habitus; B: mantle sclerites; C: radular tooth; D:
schematic organization of the anterior body; E: schematic organization of the posterior body.
Abbreviations, At: atrial sense organ; Cg: cerebral ganglion; Gp: genital papilla; Mg: midgut; Oe:
oesophagus; Pc: pallial cavity; Pd: pericardioduct; Ph: pharynx; Pr: pericardium; Ra: radula; Re:
rectum; Rf: respiratory folds; Rs: radular sac; Sc: suprarectal commissure; Sd: spawning duct; Sdp:
spawning duct pouch; Sp: sphincter; Sr: seminal receptacle; Sv: seminal vesicle; Vfg: ventrolateral
foregut glandular organs.
Figure 5. Plicaherpia papillosa gen. y sp. nov. A: habitus; B: escleritos del manto; C: diente radular; D:
esquema de la organización de la parte anterior del cuerpo; E: esquema de la organización de la parte
posterior del cuerpo. Abreviaturas, At: órgano sensitive atrial; Cg: ganglio cerebral; Gp: papila genital;
Mg: intestino; Oe: esófago; Pc: cavidad paleal; Pd: pericardioducto; Ph: faringe; Pr: pericardio; Ra:
rádula; Re: recto; Rf: pliegues respiratorios folds; Rs: saco radular; Sc: comisura suprarrectal; Sd: con-
ducto de desove; Sdp: bolsa del conducto de desove; Sp: esfínter; Sr: receptáculo seminal; Sv: vesícula
seminal; Vfe: órgano glandular ventrolateral del intestino.
39
Iberus, 28 (2), 2010
ticles. Oesophagus with sphincter.
Ventral foregut glandular organs with
short ducts. Without dorsoanterior
caecum of the intestine. Vesicles and
seminal receptacles present. Opening of
the unpaired spawning duct through a
genital papilla. Number of respiratory
folds 15. Pallial cavity with two cham-
bers: a dorsal one with respiratory folds
and anus and a ventral one with the
opening of the spawning duct. Dor-
soterminal sense organ absent.
Description. Habitus. The specimen
is 2 mm long by 0.77 mm thick in its
medial area, with an anterior end 0.45
mm thick and a posterior one 0.6 mm
thick. Without longitudinal keels or
swellings. There is a well-marked pedal
groove, the anterior end of the body
appears truncated due to the anterior
position of the opening of the atriobuc-
cal cavity; in the posterior end, the sub-
terminal opening of the pallial cavity is
clearly observed (Fig 5A). Sclerites pro-
trude clearly from the cuticle and point
posteriorly. Colour in alcohol is white.
Mantle. The cuticle is thin, 10-20 mm
thick, with a layer of sclerites in oblique
arrangement, an inclination of 70” point-
ing towards the posterior part of the
body. Four types of sclerites are
observed (Fig. 5B): solid acicular with a
pointed distal end and a rounded proxi-
mal one slightly curved in its distal half
(200 mm long x 5 mm wide); solid and
hook-shaped, slightly protruding from
the cuticle, similar to Ocheyoherpia hook-
shaped sclerites (fragment, only
observed at stereomicroscope in the
animal); grooved scales elongated and
narrow with thick margins, a pointed
distal end and a rounded proximal one
(210 mm long x 15 mm wide); and
grooved scales elongated and wide with
thick margins, a pointed distal end and
a rounded proximal one (100 mm long x
11 mm wide).
Pedal groove and pallial cavity. The
pedal groove bears a ciliated fold that
does not get into the pallial cavity. The
pallial cavity has a subterminal position
and bears two chambers divided by a
septum (Fig. 5E): a dorsal chamber that
extends anterodorsally, where there are
34
15 short and wide respiratory folds with
a radial arrangement and into which the
rectum opens; the second chamber is
ventral, it extends anteroventrally and
the unpaired spawning duct opens into
it through a genital papilla. It lacks cop-
ulatory stylets and abdominal spicles.
Digestive system (Fig. 5D). The
common atriobuccal cavity opens
frontally in the anterior end of the body,
with the mouth located in the atrium
bottom. There is a long pharynx, inter-
nally folded and encircled by a layer of
soft circular musculature and a glandular
layer which is thicker dorsally. It has a
pair of ventrolateral foregut glandular
organs tubular, narrow and short, encir-
cled by subepithelial glands along its
entire length, of type A (SALVINI-PLAWEN
1978; HAND AND TopDrT, 2005) they open
in the radular anterior area. The distic-
hous radula is made up of pairs of hook-
shaped teeth (25 mm long) with 2 medial
denticles (Fig. 5C). It has a ventral
radular sac wide and short, in which
several radular teeth can be observed.
The oesophagus bears a soft sphincter
and opens frontally into the intestine. The
intestine lacks a dorsoanterior caecum
and is provided with serial constrictions
made up of the dorsoventral muscula-
ture. The rectum is tubular and narrow,
located dorsally to the spawning duct.
The anus opens in the anterior wall of the
dorsal chamber of the pallial cavity.
Nervous system and sense organs.
Anteriorly, only the cerebral ganglion,
located dorsally to the pharynx and the
pair of small buccal ganglia located on
both sides of the pharynx in the area of
the ventrolateral foregut glandular
organs, were observed. There is a long
supra-rectal commissure on the rectum.
The atrial sense organ is large with
simple and thick sense papillae. There is
no dorsoterminal sense organ.
Reproductive system (Fig. 5E). There is
a tubular and narrow pair of gonads. In
the posterior area, the gonads present a
pair of large seminal vesicles full of sper-
matozoids. A short pair of gonopericar-
dioducts of circular section open anteri-
orly into the pericardium. The tubular
heart is joined to the dorsal wall of the
GARCÍA-ÁLVAREZ ET AL.: Solenogastres from the Bentart-2006 Expedition
anterior part of the pericardium only
through its anterior and posterior ends.
The pericardioducts come out from the
ventroposterior part of the pericardium
and open dorsally into the seminal recep-
tacles. The pair of seminal receptacles are
located laterally in the anterior half of the
spawning duct and comprise two
pouches (a smaller anterior one and a
posterior one) divided by a constriction.
The posterior pouch of seminal recepta-
cle opens laterally into the spawning
duct. The spawning duct is unpaired
along its entire extension; in its anterior
half, its section cut is higher that wide
due to the fact that a ventral pouch comes
out from it, posteriorly it gets narrower
till becoming tubular and opens unpaired
in the centre of the genital papilla. The
genital papilla is encircled by soft muscu-
lature and extends ventroposteriorly till
it opens into the ventral chamber of the
pallial cavity. Two pouches open directly
into the genital papilla. Their section cut
is high and narrow and extends anteri-
orly on both sides of the spawning duct
to the medial area of the seminal recepta-
cles.
Discussion. The set of features
present in Plicaherpia gen. nov. defines it
clearly as a new genus within the family
Phyllomeniidae Salvini-Plawen, 1978, of
the order Sterrofustia Salvini-Plawen,
1978, which is characterized by the com-
bination of solid sclerites (with hook-
shaped elements), distichous radula and
ventrolateral foregut glandular organs
with subepithelially arranged gland cell
bodies (type A). (GARCÍA-ÁLVAREZ AND
SALVINI-PLAWEN, 2007; SALVINI-PLAWEN,
1978). This family is hitherto composed
of four genera: Phyllomenia Thiele, 1913,
Harpagoherpia Salvini-Plawen, 1978,
Lituiherpia Salvini-Plawen, 1978 and
Ocheyoherpia Salvini-Plawen, 1978.
Of the features that define Plicaherpia
gen. nov., the following are especially
significant and make it differ from the
rest of the genera of the family (Table [):
the groove-shaped scales that can be
observed on the mantle and the struc-
ture of the pallial cavity that is divided
into two chambers, with respiratory
folds and with the opening of the
spawning duct through a genital
papilla. Besides, Phyllomenia is provided
with a mouth separated from the
atrium, it has gonads with true gonod-
ucts, a paired opening of the spawning
duct and copulatory stylets. Harpagoher-
pia is provided with a mouth separated
from the atrium. Lituiherpia has mantle
sclerites arranged in several layers.
Ocheyoherpia is provided with copula-
tory stylets with gland (GARCÍA-
ÁLVAREZ AND SALVINI-PLAWEN, 2007;
GARCÍA-ÁLVAREZ AND URGORRI, 2003b;
SALVINI-PLAWEN, 1978; THIELE, 1913).
Family ACANTHOMENIIDAE Salvini-Plawen, 1978
Genus Amboherpia Handl and Salvini-Plawen, 2002
Amboherpia sp. (Fig. 6)
Material examined: 1 specimen, cut in serial sections. Bellingshausen Sea. (Bentart-2006, Station
MB 33; coordinates: 70.28911” S; 84.2841” W). Water depth: 430 m. Only the anterior part of the body
and a part of the posterior could be studied and reconstructed, as the posterior part of the body
was histologically damaged.
Description. Habitus. The specimen
is 3 mm long by 0.50 mm thick in its
anterior part, 0.40 mm in its medial part
and 0.35 mm in its posterior part. There
are no swellings or longitudinal keels
(Fig. 6A). The pedal groove is well-
marked. Sclerites protrude radially from
the cuticle. Colour in alcohol is white.
Mantle. The cuticle is thin, 15-20 mm
thick, without epidermal papillae. The
sclerite layer has radial insertion, and
there are three types of sclerites (Fig.
6B): hollow acicular with both ends
pointed and slightly curved (235 mm
long x 10 mm wide); narrow groove-
shaped scales with a very pointed distal
35
Iberus, 28 (2), 2010
At
10 um
100 um
50 um
Figure 6. Amboherpia sp. A: habitus; B: mantle sclerites; C: radular teeth; D: schematic organiza-
tion of the anterior body. Abbreviations, At: atrial sense organ; Bg: buccal ganglion; Cg: cerebral
ganglion; Mg: midgut; Oe: oesophagus; Ph: pharynx; Ra: radula; Rs: radular sac; Vfg: ventrolateral
foregut glandular organs.
Figure 6. Amboherpia sp. A: habitus; B: escleritos del manto; C: dientes radulares; D: esquema de la
organización de la parte anterior del cuerpo. Abreviaturas, At: órgano sensitive atrial; Bg: ganglio bucal;
Cg: ganglio cerebral; Mg: intestino; Oe: esófago; Ph: faringe; Ra: rádula; Rs: saco radular; Vfe: órgano
glandular ventrolateral del intestino.
end and a slightly rounded one (125 mm
long x 12.5 mm wide); and wide groove-
shaped scales with a pointed distal end
and a rounded proximal one (100 mm
long x 13 mm wide).
Pedal groove and pallial cavity. The
pedal groove bears a ciliated fold that
does not get into the pallial cavity. The
pallial cavity is very small, has a subter-
36
minal position and lacks both respira-
tory folds and copulatory stylets. The
unpaired opening of the spawning duct
into the pallial cavity could be observed.
Digestive system (Fig. 6D). There is a
common atriobuccal cavity with mouth
located in the posterior part of the
atrium. The pharynx is encircled by a cir-
cular layer of musculature and a thicker
GARCÍA-ÁLVAREZ ET AL.: Solenogastres from the Bentart-2006 Expedition
glandular layer. The radular sac is wide;
several broken teeth of a monoserial
radula were observed in it, possibly with
two hollow denticles (Fig. 6C). Among
the broken parts of the radula, several
boomerang-shaped bases of the teeth
could be recognized (up to 32 mm long x
8 mm wide) corresponding to a monoser-
ial radula; a hollow circular part belong-
ing possibly to the intermediate part of
the tooth; and a pair of sharp denticles
possibly located in the distal end of the
radular tooth. The ventral foregut glan-
dular organs consist of two short ducts
encircled by musculature and opening
into the pharynx at the level of the
radula. In the posterior region of each
duct there are bundles of glandular cells
(type A according to SALVINI-PLAWEN,
1978; or type Acanthomenia according to
HANDL AND TobrT, 2005). It possesses a
narrow oesophagus that opens dorsally
into the intestine. The intestine lacks a
dorsoanterior caecum.
Nervous system and sense organs. Only
the cerebral ganglion located dorsally to
the pharynx could be observed. The
atrial sense organ is large with numer-
ous sense papillae simple and very long.
Despite some reservations, it seems to
present a dorsoterminal sense organ
located in the posterior part of the body.
Remarks. At present three genera of
the family Acanthomeniidae Salvini-
Plawen, 1978 are known: Acanthomenia
Thiele, 1913; Amboherpia Handl and
Salvini-Plawen, 2002 and Veromenia Gil-
Mansilla, García-Álvarez and Urgorri,
ACKNOWLEDGEMENTS
This paper is part of the research
projects: Bentart (MEC-Spanish Govern-
ment REN2003-01881/ANT) and Diva-
BIBLIOGRAPHY
GARCÍA-ÁLVAREZ O. AND SALVINI-PLAWEN L.V.
2007. Species and diagnosis of the Families
and Genera of Solenogastres (Mollusca).
Iberus, 25 (2):73-143.
2008. The three genera differ in the com-
bination of several characteristics: orga-
nization of the atrio-buccal cavity; pres-
ence/absence of radula, presence/ab-
sence of respiratory folds and pres-
ence/absence of a dorsoterminal sense
organ (GIL-MANSILLA ET AL., 2008 see
table 2; HANDL AND SALVINI-PLAWEN,
2002; SALVIN-PLAWEN, 1978). The speci-
men is to be clearly included within the
genus Amboherpia as it has a common
atriobuccal cavity, monoserial radula, it
lacks respiratory folds and has, despite
some reservations, a dorsoterminal sense
organ. Two species are described in the
genus Amboherpia: A. heterotecta Handl
and Salvini-Plawen, 2002, Bergen (Nor-
way), 610 m deep and A. dolicopharyngea-
ta Gil-Mansilla, García-Álvarez and Ur-
gorri, 2008, Angola Basin, 5415 m deep.
Although the structure of its reproduc-
tive system is still unknown Amboherpia
sp., has a combination of characteristics
that enable us to distinguish it from the
known species of the genus (GIL-MAN-
SILLA ET AL., 2008 HANDL AND SALVINI-
PLAWEN, 2002). Amboherpia sp. differs
from A. heterotecta in the fact that: it lacks
a preradular sphincter, it is provided
with an oesophagus, and the ventrolater-
al foregut glandular organs have short
ducts and a glandular association re-
stricted to the terminal part. It differs
from A. dolicopharyngeata in: having only
groove-shaped scales, the pharynx is
shorter and not divided in two regions,
the oesophagus is shorter and lacks an
intestinal dorso-anterior caecum.
Artabria II (MEC-Spanish Government
CTM-2004-00740; Xunta de Galicia
PGIDITO7PXIB000120PR).
GARCÍA-ÁLVAREZ O. AND URGORRI V. 2003a.
Solenogastres molluscs from the BENTART
Collection (South Shetland Islands, Antarc-
tica), with a descripción of a new species.
Iberus, 21 (1):43-56.
37
Iberus, 28 (2), 2010
GARCÍA-ÁLVAREZ O. AND URGORRI V. 2003b. A
new species of Phyllomeniidae (Mollusca
Solenogastes: Sterrofustia) from the South
Shetland Islands, Antarctica. Iberus, 21 (2): 99-
107.
GARCÍA-ÁLVAREZ O., ZAMARRO M. AND UR-
GORRI V. 2009. Proneomeniidae (Solenogas-
tres, Cavibelonia) from the Bentart-2006 Ex-
pedition, with description of a new species.
Iberus, 27 (1): 67-78.
GiL-MAnNsILLA E., GARCÍA-ÁLVAREZ O. AND UR-
GORRI V. 2008. New Acanthomeniidae
(Solenogastres, Cavibelonia) from the abyssal
Angola Basin. In: Martínez Arbizu, P. and
Brix, S. (Eds). Bringing Light into Deep-sea
Biodiversity. Zootaxa, 1866: 175-186.
GIL-MANSILLA E., GARCÍA- ALVAREZ O. AND UR-
GORRI V. 2009. A new genus and two new
species of Simrothiellidae (Solenogastres,
Cavibelonia) from the Abyssal Angola Basin.
Journal of the Marine Biological Association of
the United Kingdom, 89 (7): 1507-1515.
HANDL C. AND ToDrT C. 2005. Foregut Glands
of Solenogastres (Mollusca): Anatomy and
Revised Terminology. Journal of Morphology,
265: 28-42.
38
HANDL C. AND SALVINFPLAWEN L.v. 2002. New
records of Solenogastres-Cavibelonia (Mol-
lusca) from Norwegian fjords and shelf wa-
ters including three new species. Sarsia, 87:
423-450.
SALVINI-PLAWEN L.v. 1970. Phyllomenia aust-
rina ein Phylogenetisch bedeutsamer
Solenogaster (Mollusca, Aculifera). Zeitschrift
fir Zoologie, Systematik u. Evolutionsforschung,
8: 297-309.
SALVINI-PLAWEN L.v. 1978. Antarktische und
subantarktische Solenogastres-Eine Mono-
graphie: 1898-1974. Zoologica, Stuttgart, 128:
1-315.
SALVIN-PLAWEN L.v. 2006. Five new Iberian
Neomeniamorpha (Mollusca, Solenogastres).
Iberus, 24 (2): 1-26.
SALVINI-PLAWEN L.V. AND PAAR-GAUSCH l.
2004. Three new species of Neomenia (Mol-
lusca, Solenogastres) from the Southern
Hemisphere. New Zealand Journal of Marine
and Freshwater Research, 38: 137-162.
THIELE J. 1913. Antarktische Solenogastren.
Deutsche Súdpolar Expedition, 14, Zoologie,
6 (1): 35-65.
O Sociedad Española de Malacología
Iberus, 28 (2): 39-50, 2010
Fauna Malacológica da cidade de Coimbra (Beira Litoral).
Mo! : >>> [o -]
o
=_—
Planorbella duryi (Wetherby, 1879)
Ferrissia fragilis (Tryon, 1863)
Ancylus fluviatilis (Miller O. E, 1774) X X
Physa acuta Drapamaud, 1805 X X X
Carychium ibazoricum Bank e Gittenberger, 1985 X X X X
Carychium minimum Múller O. E, 1774 X
Oxyloma elegans (Risso, 1826)
Cochlicopa lubrica (Miller 0. E, 1774)
Cochlicopa lubricella (Rossmássler, 1834) X
Lauria cylindracea (da Costa, 1778) X
Leiostyla anglica (Férussac, 1821) X
Vallonia costata (Miller O. E, 1774)
Vallonia cf. enniensis (Gredler, 1856)
Vallonia pulchella (Múller O. E, 1774)
Plagyrona placida (Shuttleworth, 1852) X
Acanthinula aculeata (Múller O. E, 1774) X
Spermodea lamellata (Jeffreys, 1830) X
Truncatellina cylindrica (Férussac A., 1807) X X
Vertigo pygmaea (Draparnaud, 1801) X
Clousilia bidentata (Stróm, 1765) X X X 0)
Balea heydeni Maltzan, 1881 (
Rumina decollata (Linnaeus, 1758)
Testacella maugei (de Férussac, 1819)
Punctum pygmaeum (Draparnaud, 1801)
Paralaoma servilis (Shuttleworth, 1852)
Discus rotundatus (Miller O. E, 1774)
Vitrea contracta (Westerlund, 1871)
Euconulus fulvus (Miller O. F., 1774)
Zonitoides nitidus (Múller O. F., 1774) X X
Oxychilus cellarius (Miller O. E, 1774) X X (X
Oxychilus draparnaudi (Beck, 1837) X X (0) 0) 09) X X
Aegopinella nitidula (Draparmaud, 1805) X X X X X X
><
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42
DE OLIVEIRA: Fauna Malacológica de Coimbra. Moluscos “urbanos” de Portugal. 1
Tabela 1. Continuacáo.
Table I. Continuation.
Espécies 1
Milax gar=*es (Draparnaud, 1801)
Limax maxitnus ¡Linnaeus, 1758)
Limacus flavus (Linnaeus, 1758) X
Lehmannia valentiana (Férussac, 1822)
Deroceras laeve (Miller O. E, 1774) X
Deroceras reticulatum (Miller O. E, 1774) X
Arion ater (Linnaeus, 1758)
Arion intermedivs Normand, 1852 X
Arion nobrei Pollonera 1889 X
Cochlicella barbara (Linnaeus, 1758)
Oestophora barbula (Rossmússler, 1838) X
Oestophora lusitanica (Pfeiffer, 1841)
Ponentina subvirescens (Bellamy, 1839)
Candidula olisippensis (Servain, 1880) X
Cernuella virgata (da Costa, 1778)
Microxeromagna lowei (Potiez e Michaud, 1838)
Theba pisana pisana (Múller O. E, 1774)
Cepaea nemoralis (Linnaeus, 1758) X
Otala lactea (Miller O. F, 1771)
Portugala inchoata (Morelet, 1845)
><
Cornu aspersum (Miller O. E, 1774) X
Corbicula fluminea (Miller O. F., 1774)
61 spp. 35
(viii) De quatro das espécies apenas
foram detectados vestígios (conchas
roladas): Radix balthica, Balea heydeni,
Otala lactea, Corbicula fluminea.
Comentários sobre algumas espécies
Assiminea eliae: É surpreendente o
registo de LOCARD (1899) desta espécie
de águas salobras. No entanto, uma
outra espécie que compartilha o mesmo
habitat, Myosotella myosotis, é citada
para Coimbra por CARVALHO (1945) [ver
“Material museológico” abaixo]. Recen-
temente o autor encontrou M. myosotis
associada a Assiminea cf. grayana
FLEMING, 1828 na Ria de Aveiro, a cerca
de 20 km do mar (registos próprios náo
publicados).
Mercuria tachoensis: Foi detectada
uma colónia inédita deste endemismo
portugués na Fonte da Sereia (Jardim de
Santa Cruz). A sua identidade foi confir-
>< >>>
34
X X
X X X
X X X
X X X X X
X
X X X X X
X X
X X X
X X X X X
X 00
X X X
X X X X
X X
A
X X 00 X X
X X 00 X X
09)
X X X
00 X X X X X
22 24 18 2| 33
mada por estudo anatómico (seis espéci-
mes na coll. Emilio Rolán).
Ferrissia fragilis: Registo novo para
Coimbra desta espécie exótica recente-
mente referenciada para Portugal
(HOLYOAK, 2009). Foram entretanto
detectadas mais duas colónias da
espécie: No Vale do Baixo Mondego,
numa nascente em Vila Nova da Barca,
Beira Litoral; e num jardim público de
Faro, Algarve (registos próprios náo
publicados).
Vallonia cf. enniensis: Esta forma foi
detectada num único local da cidade,
Jardim de Santa Cruz, associada a Vallo-
nia costata e Vallonia pulchella. Apenas
foram encontrados dois exemplares de
V. cf. enniensis em oito colheitas com
representantes do genus (58 exemplares
de V. costata, sete de V. pulchella); náo
foram detectados exemplares intermé-
dios.
A3
Iberus, 28 (2), 2010
Tabela II. Lista das espécies citadas para Coimbra. X. Presenga. (X). Apenas conchas. (+). Registos
novos. * Espécies comentadas em “Resultados”. Registos: 1. MORELET (1845). 2. HIDALGO
(1875). 3. LOCARD (1899). 4. NOBRE (1885, 1930). 5. Registos próprios (espécies inscritas a
negrito). 6. Primeiros registos posteriores a NOBRE (1930): (a) BOETERS (1988). (b) DE OLIVEIRA
(2009a). (c) CARVALHO (1945). (d) DE OLIVEIRA (2009b). (e) MARTÍNEZ-ORTÍ (2006). (f) Cas-
TILLEJO (1990b). (g) CARVALHO (1944). (h) CASTILLEJO (19904).
Table II. List of species noticed/collected in Coimbra. X. Presence. (X). Shells only. (+). New records. (*)
Species commented under “Resultados”. Records: 1. MORELET (1845). 2. HIDALGO (1875). 3. LOCARD
(1899). 4. NOBRE (1885, 1930). 5. Own records (species inscribed in bold). 6. First records after
NOBRE (1930): (4) BOETERS (1988). (b) DE OLIVEIRA (2009a). (c) CARVALHO (1945). (4d) DE OLr-
VEIRA (2009b). (e) MARTÍNEZ-ORTÍ (2006). (f) CASTILLEJO (1990b). (g) CARVALHO (1944). (h)
CASTILLEJO (19904).
Espécies | 2
Theodoxus cf. fluviatilis (Linnaeus, 1758) X
Pomatias elegans (Miller O. F., 1774) X X
Bithynia tentaculata (Linnaeus, 1758)
Assiminea eliae Paladilhe, 1875 *
Potamopyrgus antipodarum (Gray J. E., 1843) X X (0)
Mercuria tachoensis (Frauenfeld, 1865) *
Belgrandia lusitanica (Polodilhe, 1867) X
Valvata piscinalis (Miller O. E, 1774) X
Galba truncatula (Miller O. F,, 1774)
Radix balthica (Linnaeus, 1758)
Radix auricularia (Linnaeus, 1758)
Bulinus truncatus contortus (Michaud, 1829) X
Planorbarius metidiensis (Forbes, 1838) *
Planorbella duryi (Wetherby, 1879) X X (b)
(+) Ferrissia fragilis (Tryon, 1863)* X
Planorbis planorbis (Linnaeus, 1758)
Planorbis carinatus (Múller O. E, 1774) X
Anisus spirorbis (Linnaeus, 1758) X
Gyraulus albus (Múller O. E, 1774)
Gyraulus loevis (Alder, 1838)
Gyraulus crista (Linnaeus, 1758)
Hippeutis complanatus (Linnaeus, 1758)
Ancylus fluviatilis (Miller O. F, 1774)
Physa acuta Draparnaud, 1805
Myosotella myosotis (Draparaud, 1801) * X (c)
Carychium ibazoricum Bonk e Gittenberger, 1985 X X
(+) Carychium minimum Miiller O. F, 1774
Oxyloma elegans (Risso, 1826)
Cochlicopa lubrica (Miller O. F., 1774)
Cochlicopa lubricella (Rossmissler, 1834)
Lauria cylindracea (da Costa, 1778) X X X
Leiostyla anglica (Férussac, 1821) X
Vallonia costata (Miller O. F., 1774)
Valonia cf. enniensis (Gredler, 1856) *
Vallonia pulchella (Miller O. F, 1774)
Plagyrona placida (Shuttleworth, 1852) * X
Acanthinula aculeata (Miller O. F., 1774) X X
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44
DE OLIVEIRA: Fauna Malacológica de Coimbra. Moluscos “urbanos” de Portugal. 1
Tabela ll. Continuacáo.
Table 1. Continuation.
Espécies
(+) Spermodea lamellata (Jeffreys, 1830) *
Pupilla muscorum (Linnaeus, 1758)
Pyramidula rupestris (Draparnaud, 1801) *
Granopupa granum (Draparnaud, 1801)
Chondrina lusitanica (Pfeiffer, 1848) *
Truncatellina cylindrica (Férussac A., 1807)
(+) Vertigo pygmaea (Drapamaud, 1801) *
Merdigera obscura (Múller O. E, 1774)
Clousilta bidentuta (Stróm, 1765)
Balea heydeni Maltzan, 1881
Balea perversa (Linnaeus, 1758) *
Ferussacia folliculus (Gmelin, 1791)
Cecilioides acicula (Miller O. F, 1774)
Rumina decollata (Linnaeus, 1758)
Testacella maugei (de Férussac, 1819)
Punctum pygmaeum (Draparnaud, 1801)
Paralaoma servilis (Shuttleworth, 1852)
Discus rotundatus (Miller 0. F, 1774)
Vitrea contracta (Westerlund, 1871)
Vitrea crystallina (Miller O. E, 1774)
Euconulus fulvus (Múller O. F, 1774)
(+) Zonitoides nitidus (Miller O. F, 1774) *
Oxychilus cellarius (Miller O. F, 1774)
Oxychilus drapamaudi (Beck, 1837)
Aegopinella nitens (Michaud, 1831)
Aegopinella nitidula (Draparnaud, 1805)
Parmacella valenciennii (Webb e Van Beneden, 1836 *
Milax gagates (Draparmaud, 1801)
Limax maximus (Linnaeus, 1758)
Limacus flavus (Linnaeus, 1758)
(+) Lehmannia valentiana (Férussac, 1822)
Deroceras agreste (Pollonera, 1891)
Deroceras loeve (Miller O. F., 1774)
Deroceras lombricoides (Morelet, 1845)
Deroceras reticulatum (Miller O. F., 1774)
Arion ater (Linnaeus, 1758)
Arion nobrei Pollonera 1889
Arion intermedivs Normand, 1852
Cochlicella acuta (Miller O. F., 1774)
Cochlicella barbara (Linnaeus, 1758)
Oestophora barbula (Rossmissler, 1838)
Oestophora lusitanica (Pfeiffer, 1841)
Ponentina subvirescens (Bellamy, 1839)
Xerotricha apicina (Lamarck, 1822)
Xerotricha conspurcata (Draparnaud, 1801)
Candidula belemensis (Servain, 1880)
Candidula intersecta (Poiret, 1801)
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45
Iberus, 28 (2), 2010
Tabela Il. Continuacáo.
Table IT. Continuation.
Espécies 1
Candidula olisippensis (Servain, 1880)
Cemuella virgata (da Costa, 1778)
(+) Microxeromagna lowei (Potiez e Michaud, 1838)
Theba pisana pisana (Miller O. F, 1774)
Cepaea nemoralis (Linnaeus, 1758)
(+) Otala lactea (Miller O. E, 1771)
Portugala inchoata (Morelet, 1845)
Cornu aspersum (Miller O. E, 1774)
Potomida littoralis (Cuvier, 1798) *
Unio delphinus Spengler, 1793 * X
Anodonta anatina (Linnaeus, 1758) * X
(+) Corbicula fuminea (Miller O. F., 1774)
Sphaerium corneum (Linnaeus, 1758) *
Musculium lacustre (Múller O. F., 1774)
Pisidium amnicum (Miller O. F, 1774) *
Pisidium casertanum (Poli, 1791)
100 spp. 12 spp.
V. cf. enniensis foi também colhida
num jardim da cidade do Porto, Douro
Litoral, associada a V. pulchella [registos
próprios náo publicados]. Aqui, numa
amostra de nove exemplares, trés sáo
atribuíveis a V. cf. enniensis. Dos restan-
tes seis exemplares, atribuíveis a V. pul-
chella, pelo menos um apresenta caracte-
res intermédios: as primeiras voltas da
espira com estriacáo axial típica de V.
pulchella, que se vai gradualmente espa-
cando, até que no último quarto de volta
é patente já a estriacáo axial típica de V.
enniensis.
GIUSTI E MANGANELLI (1992) póem
em causa a validade da maior parte das
espécies europeias de Vallonia (entre as
quais V. enniensis) considerando: (1)
estáo baseadas apenas em caracteres
conquiliológicos; (2) as populacóes de
quase todas as espécies sáo completa-
mente desprovidas de complexo penial;
(3) o facto de várias “espécies” ocorre-
rem associadas no mesmo local [p. ex.
BECKMANN (2007) reporta V. pulchella, V.
enniensis e V. costata associadas em dois
locais da ilha de Mallorca, Baleares],
46
2 3 4 5 6
X X
X X
X
X X X X
X X X
0)
X X X
X X X
X (9)
X
X X
0)
X X
X
X (9)
X X
l3spp. 58spp. 64spp. | 6lspp. 15 spp.
76 spp.
apresentada por vários autores como
prova suficiente da sua validade taxonó-
mica, pode náo bastar: poderá tratar-se
de populacóes de diferentes estirpes
genéticas ou clones da mesma espécie,
perpetuadas por autofecundacáo ou
partenogénese.
Plagyrona placida: Uma das espécies
terrestres mais raras na cidade [rara-
mente obtido mais que um exemplar em
qualquer das amostragens realizadas
nos trés sítios onde foi encontrada
(Tabela 1)].
Spermodea lamellata: Registo novo
para Coimbra desta espécie rara da
fauna portuguesa, da qual apenas sáo
conhecidas mais trés populacóes, conti-
das na Bacia Lusitánica, províncias de
Beira Litoral e Estreemadura (GITTENBER-
GER, 1989; DE OLIVEIRA, 2007).
Vertigo pygmaea: Registo novo para
Coimbra e para a província de Beira
Litoral. Conhecida apenas das províncias
de Minho e Douro Litoral nos registos clás-
sicos, foi recentemente encontrada em Bra-
ganca, província de Trás-os-Montes (regis-
tos próprios náo publicados).
DE OLIVEIRA: Fauna Malacológica de Coimbra. Moluscos “urbanos” de Portugal. 1
Zonitoides nitidus: Registo novo para
Coimbra e para a província de Beira
Litoral. Desta espécie, até agora apenas
conhecida da província de Douro Litoral
(DE OLIVEIRA, 2008), foram entretanto
detectadas populacóes em Valenca
(prov. Minho) e Braganca (prov. Trás-os-
Montes) [registos próprios náo publica-
dos].
Material museológico
Em Fevereiro de 2010 foram estuda-
dos vários lotes de Gastropoda e Bival-
via náo-marinhos provenientes de
Coimbra depositados no Museu de His-
tória Natural da Universidade de
Coimbra (MHNC) reportados no Catá-
logo da Coleccáo de Invertebrados de
Portugal (CARVALHO, 1944, 1945).
Nenhuma das amostras possui data de
colheita e apenas quatro apontam o
nome do autor:
Planorbarius metidjensis: Dois lotes, um
dos quais (131b) identificado como “Pla-
norbis corneus (L.)”, o outro (132) como
“Planorbis corneus (L.) var. metidjensis
Forbes”, compostos por, respectivamente,
cinco e duas conchas. Biometria (em mm;
conchas maiores de cada uma das amos-
tras): altura — 6,6-7,3; diámetro — 14,0-16,3;
n” de voltas — 3,8-4,4. A ocorréncia em Por-
tugal continental de Planorbarius corneus
(LINNAEUS, 1758) náo foi confirmada. O
estudo da populacáo reportada do Jardim
Botánico da Universidade de Coimbra
revelou tratar-se de Planorbella duryi (WEr-
HERBY, 1879), espécie exótica de origem
neárctica (DE OLIVEIRA, 2009a).
Myosotella myosotis: Este é o único
vestígio da ocorréncia em Coimbra
desta espécie de águas salobras. O lote
estudado (117a) é composto por trés
conchas com os restos secos do animal.
Biometria: altura — 6,9-7,8; diámetro —
3,2-3,6; n* de voltas — 7,0.
Pyramidula rupestris: O único lote (49b)
procedente de Coimbra é composto por
sete conchas, cinco das quais em muito
mau estado de conservacáo. O estudo das
duas conchas em melhor estado revelou
tratar-se de Plagyrona placida [ver também
“Registos duvidosos ou errados” abaixo].
Biometria (concha maior): altura — 1,6; diá-
metro — 2,2; n” de voltas — 3,1.
Chondrina lusitanica: O lote estudado
(92a), identificado como “Abida secale
(Drap.)” é composto por duas conchas.
Biometria: altura — 7,6-8,1; diámetro —
2,8-3,0; n* de voltas — 7,0-7,5.
Balea perversa: A amostra (98c) é com-
posta por sete conchas pertencentes a
juvenis de Clausilia bidentata! Biometria
(concha maior): altura — 4,8; diámetro —
2,0; n* de voltas — 8,0. A ocorréncia de
Balea perversa em Portugal continental é
apenas suportada por material conqui-
liológico depositado no Museo de Cien-
cias Naturales de Madrid [uma amostra
(pars) procedente de Coimbra na coll.
Azpeitia (MARTÍNEZ-ORTÍ, 2006)] e no
Museu de História Natural da Universi-
dade do Porto [uma amostra prove-
niente da Serra de Montesinho, prov. de
Trás-os-Montes, na coll. Nobre (registos
próprios náo publicados)].
Parmacella valencienni: A amostra
(17a) náo foi encontrada. A espécie é
classicamente reportada em Portugal do
Vale do Tejo para sul (MORELET, 1845;
NOBRE, 1930). Mais recentemente, a sua
área de distribuicáo é ampliada para
norte, até ao Vale do Mondego (RODRÍ-
GUEZ, HERMIDA E OUTEIRO, 1993). No
entanto, a sua ocorréncia actual em
Coimbra náo foi confirmada.
Potomida littoralis: O lote (431) é com-
posto por trés conchas. Biometria
(concha maior): altura - 37,8; compri-
mento — 55,6; espessura — 21,8. Este é o
único registo conhecido para Coimbra.
Unio delphinus: A amostra (430) iden-
tificada como “Unio pictorum (L.)” é
constituído por cinco conchas. Biometria
(concha maior): altura — 36,3; compri-
mento — 72,0; espessura — 25,7.
Anodonta anatina: A amostra (432)
identificada como “Anodonta cygnea
(L.)” é constituído por uma concha. Bio-
metria: altura — 51,0; comprimento -—
94,3; espessura — 28,5.
Pisidium amnicum: A amostra (485)
identificada como “Pisidium amnicum
(Múller)” é constituída por trés conchas,
as duas menores pertencentes a Sphae-
rium corneum. Biometria: P. amnicum:
altura — 8,9; comprimento - 11,0; espes-
sura — 6,2; S. corneum: altura - 6,7-7,1;
comprimento — 7,7-8,5; espessura — 4,8-
47
Iberus, 28 (2), 2010
Tabela III. Lista de sinonímias: (1). MORELET (1845). (2). HIDALGO (1875). (3). LOCARD
(1899). (4). NOBRE (1885, 1930).
Table II. Sinonymy list: (1). MORELET (1845). (2). HIDALGO (1875). (3). LOCARD (1899). (4).
NOBRE (1885, 1930).
Espécies
Theodoxus cf. fluviatilis (Linnaeus, 1758)
Pomatias elegans (Múller O. E, 1774)
Bithynia tentaculata (Linnaeus, 1758)
Assiminea eliae Paladilhe, 1875
Mercuria tachoensis (Frauenfeld, 1865)
Belgrandia lusitanica (Paladilhe, 1867)
Valvata piscinalis (Miller O. E, 1774)
Galba truncatula (Múller O. E, 1774)
Radix balthica (Linnaeus, 1758)
Radix auricularia (Linnaeus, 1758)
Bulinus truncatus contortus (Michaud, 1829)
Planorbarius metidiensis (Forbes, 1838)
Planorbis planorbis (Linnaeus, 1758)
Planorbis carinatus (Múller 0. E, 1774)
Anisus spirorbis (Linnaeus, 1758)
Gyraulus albus (Múller O. E, 1774)
Gyraulus laevis (Alder, 1838)
Gyraulus crista (Linnaeus, 1758)
Hippeutis complanatus (Linnaeus, 1758)
Ancylus fluviatilis (Miller O. E, 1774)
Physa acuta Draparmaud, 1805
Carychium ibazoricum Bank e Gittenberger, 1985
Oxyloma elegans (Risso, 1826)
Cochlicopa lubrica (Miller O. E, 1774)
Lauria cylindracea (da Costa, 1778)
Leiostyla anglica (Férussac, 1821)
Plagyrona placida (Shuttleworth, 1852)
Acanthinula aculeata (Múller O. F., 1774)
Pyramidula rupestris (Draparnaud, 1801)
Granopupa granum (Draparnaud, 1801)
Chondrina lusitanica (Pfeiffer, 1848)
Truncatellina cylindrica (Férussac A., 1807)
Merdigera obscura (Múller O. E, 1774)
Clousilia bidentata (Stróm, 1765)
Balea perversa (Linnaeus, 1758)
Ferussacia folliculus (Gmelin, 1791)
Cecilioides acicula (Miller O. E, 1774)
Rumina decollata (Linnaeus, 1758)
Punctum pygmaeum (Draparaud, 1801)
Paralaoma servilis (Shuttleworth, 1852)
Vitrea contracta (Westerlund, 1871)
Oxychilus cellarius (Miller O. E, 1774)
Oxychilus draparaudi (Beck, 1837)
48
Sinónimos
Neritina violacea (1, 4), Theodoxia elongatula (3), Neritina fluviatilis (4)
Cyclostoma elegans (1, 2, 3, 4)
Bythinia tentaculata (3, 4), B. decipiens, B. matritensis (3)
Assimina eliae (3)
Amnicola lanceolata, A. castroiana (3), A. similis, Hydrobia similis (4)
Paludina gibba (1), Belgrandia gibba, Hydrobia gibba (4)
Valvata tolosana, V. eximia (3)
Limnaea truncatula (3, 4)
Limnaea acutalis, L. acronica, L. limosa, L. angustana, L. paulinoi, L. rubella,
L lusitanica (3), L. peregra, L ovata (4)
Limnaea auricularia (3, 4), L. intermedia (3)
Physa contorta (1), P brondeli, P. paulinoi, P castroi (3), Bulinus contortus (4)
Planorbis metidjensis, P. algericus, P aclopus, P lusitanus, P rosai (3), P dufouri
(3, 4), P coreus var. metidiensis (4)
anorbis umbilicatus, P intermedivs (3)
anorbis complanatus var. carinata (4)
anorbis leucostoma (1, 4), P rotundatus (3), P spirorbis (4)
anorbis albus (3, 4)
Planorbis glaber (3)
Planorbis imbricatus (3), P crista, P nautileus (4)
Planorbis fontanus (3, 4), P. complanatus (4)
Ancylus strictus, A. gibbosus (3), A. striatus (4)
Physa subopaca (3)
Auricula gracilis (1), Carychium gracile (2, 3, 4)
Succinea longiscata (3), S. elegans, S. pfeifferi (4)
Zua subcylindrica (3), Cionella subcylindrica (4)
Pupa umbilicata (2, 4), Pupilla umbilicata (3)
Pupilla paulinoi (3)
Helix debauxiana (3)
Helix aculeata (3, 4)
Helix rupestris (3, 4)
Pupa graniformis (3), P. granum (4)
Pupa lusitanica (3), P. avenacea var. lusitanica (4)
Vertigo muscorum (4)
Bulimus obscurus (3), Buliminus obscurus (4)
Clousilia rugosa (1, 2, 4), C. moniziana (3)
Balia perversa (3)
Ferussacia vescoi, Eamblya (3)
Caecilianella acicula (4)
Bulimus decollatus (2)
Helix pygmaea (4)
Helix poupillieri (3)
Hyalinia vitreola (3)
Helix cellaria (2), Hyalinia chersa, H. lusitanica, H. blidahensis (3), H. cellaria (4)
Hyalinia raterana, H. kraliki (3)
= >=
P
P
P
—T TS
DE OLIVEIRA: Fauna Malacológica de Commbra. Moluscos “urbanos” de Portugal. 1
Tabela MIT. Continuagáo.
Table HI. Continuation.
Espécies
Aegopinella nitens (Michaud, 1831)
Aegopinella nitidula (Draparnaud, 1805)
Milox gagates (Draparaud, 1801)
Deroceras agreste (Pollonera, 1891)
Deroceras loeve (Miller O. E, 1774)
Arion intermedius Normand, 1852
Cochlicella acuta (Miller O. F, 1774)
Cochlicella barbara (Linnaeus, 1758)
Oestophora barbula (Rossmússler, 1838)
Oestophora lusitanica (Pfeiffer, 1841)
Ponentina subvirescens (Bellamy, 1839)
Xerotricha apicina (Lamarck, 1822)
Xerotricha conspurcata (Draparaud, 1801)
Candidula belemensis (Servain, 1880)
Candidula intersecta (Poiret, 1801)
Candidula olisippensis (Servain, 1880)
Cernuella virgata (da Costa, 1778)
Theba pisana pisana (Miller 0. E, 1774)
Cepaea nemoralis (Linnaeus, 1758)
Portugala inchoata (Morelet, 1845)
Cornu aspersum (Miller O. E, 1774)
Unio delphinus Spengler, 1793
Anodonta anatina (Linnaeus, 1758)
Sphaerium corneum (Linnaeus, 1758)
Musculium lacustre (Miller O. F., 1774)
Sinónimos
Hyalinia nitens, H. castroi (3), Zonites nitens (4)
Hyalinia nitidula (4)
Amalia gagates (4)
Agriolimax agrestis (4)
Agriolimax laevis (4)
Arion hessei (4)
Cochlicella barbara (3), Helix barbara (4)
Helix acuta, H. ventrosa (4)
Helix barbula (3, 4), H. barbella, H. despicta (3)
Helix lusitanica (3, 4)
Helix occidentalis (2, 3, 4), H. villula, H. atachypora, H. conimbricensis,
H. rosai (3)
Helix apicina (2, 3, 4)
Helix conspurcata (2, 3), H. moricola (3)
Helix absidiata (3)
Helix caperata (2), H. intersecta (3, 4), H. herbarum (3)
Helix defectiva, H.unifasciata, H. olisippensis (3)
Helix virgata, H. variabilis (4)
Helix pisana (2, 3, 4), H. pisanella, H. pisanopsis, H. carpiensis,
H. dierbanica (3)
Helix nemoralis (3, 4)
Helix inchoata (3, 4), H. paulinoi, H. nobrei, H. goltzi, H. pochi (3)
Helix aspersa (3, 4)
Unio pictorum (1, 4), U. oeschrus, U. amblyus (3)
Anodonta macilenta (1, 3, 4), A. acyrta, A. silvae, A. embiella, A. bocageana,
A. rosai (3)
Sphaerium lusitanicum, S. nucleatum (3)
Sphaerium lacustris (4)
5,6. Este é o único registo conhecido de
P. amnicum para Coimbra.
Registos duvidosos ou errados
Recentemente DE OLIVEIRA (2009b)
cita para Coimbra Pyramidula pusilla
(GITTENBERGER E BANK, 1996). Este
registo, após análise mais detalhada, é
errado e corresponde a Plagyrona placida.
CONCLUSAÁO
Pelo menos 61 espécies de moluscos
continentais sobrevivem ainda na cidade
de Coimbra. Uma diversidade ainda
assim notável dados (i) o isolamento e a
exiguidade dos habitats actualmente dis-
poníveis e (ii) a continua manutencáo e
artificializacio desses mesmos espacos
(limpeza, recolha de manta morta, obras
de “beneficiacáo”, eventual uso de
moluscicidas...), que periódica e sistema-
ticamente váo sendo responsáveis por
fenómenos de mortalidade.
AGRADECIMENTOS
Material bibliográfico e malacoló-
gico foi disponibilizado para consulta e
estudo na Biblioteca de Zoologia e no
Museu de História Natural da Universi-
dade de Coimbra. No Museu de Histó-
49
Iberus, 28 (2), 2010
ria Natural da Universidade do Porto
foram estudadas as amostras da Familia
Clausiliidae depositadas na coll. Nobre.
BIBLIOGRAFIA
BECKMANN K.-H., 2007. Die Land- und Súis-
swassermollusken der Balearischen Inseln.
Conchbooks, Wiesbaden. 255 p.
BOETERS H. D. 1988. Moitessieriidae und Hy-
drobiidae in Spanien und Portugal (Gastro-
poda: Prosobranchia). Archiv fúr Mollusken-
kunde, 118 (4-6): 181-261.
CARVALHO R. N. 1944. Catálogo da Coleccáo de
Invertebrados de Portugal existentes no Mu-
seu Zoológico da Universidade de Coimbra.
Mollusca. 2* Parte: A. Classe Pelecypoda
Goldfuss (Acephala Cuv. Lamellibranchiata
Blv.). Memórias e Estudos do Museu Zoológico
da Universidade de Coimbra, 162: 1-22.
CARVALHO R. N. 1945. Catálogo da Coleccáo de
Invertebrados de Portugal existentes no Mu-
seu Zoológico da Universidade de Coimbra.
Mollusca. 2* Parte: B. Classe Gastropoda Cu-
vier. Memórias e Estudos do Museu Zoológico
da Universidade de Coimbra, 167: 1-50.
CASTILLEJO J., 1990a. Babosas de la Peninsula
Iberica. 1. Los Arionidos. Catalogo critico y
mapas de distribucion (Gastropoda, Pulmo-
nata, Arionidae). Comunicaciones del VIII
Congreso Nacional de Malacologia, Valencia,
Octubre de 1990, Iberus, 9 (1-2): 331-345.
CASTILLEJO J. 1990b. Babosas de la Peninsula Ibe-
rica. II. Los Agriolimacidos. Catalogo critico
y mapas de distribucion (Gastropoda, Pul-
monata, Agriolimacidae). Comunicaciones
del VIII Congreso Nacional de Malacologia,
Valencia, Octubre de 1990, Iberus, 9 (1-2):
347-358.
DE OLIVEIRA A., 2007. Spermodea lamellata (Jef-
freys, 1830) (Pulmonata: Valloniidae, Acant-
hinulinae): novos dados sobre a sua distri-
buicáo em Portugal. Noticiario de la Sociedad
Española de Malacologia, 47: 29-31.
DE OLIVEIRA A., 2008. Materiais para o estudo
da Malacofauna náo-marinha de Portugal. 1.
Seis gastrópodes (Pulmonata, Stylomma-
tophora) náo citados na obra de Augusto
Nobre. 2. Monacha cartusiana (Muller O. F.,
1774) e Helicigona lapicida (Linnaeus, 1758)
(Pulmonata, Helicoidea). Noticiario de la So-
ciedad Española de Malacologia, 49: 40-45. 51:
48 [errata].
DE OLIVEIRA A. 2009a. Materiais para o estudo
da Malacofauna náo-marinha de Portugal. 4.
Revisáo das espécies aquáticas introduzidas.
Noticiario de la Sociedad Española de Malacolo-
gia, 52: 31-37.
50
Emilio Rolán estudou anatomica-
mente a colónia de Mercuria da Fonte da
Sereia confirmando a sua identidade.
DE OLIVEIRA A. 2009b. Materiais para o estudo
da Malacofauna náo-marinha de Portugal. 5.
Cochlicopa lubricella (Rossmássler, 1834) (Pul-
monata, Cochlicopidae). Noticiario de la So-
ciedad Española de Malacología, 51: 55-58.
GITTENBERGER E., 1989. Additional data con-
cerning the systematics and the remarkable
ranges of three species of landsnails, known
from Sintra. Publicacóes Ocasionais da Sociedade
Portuguesa de Malacologia, 13: 13-16, fig. 1-5.
GiusTI F. E MANGANELLIG., 1992. The problem
of the species in Malacology after clear evi-
dence of the limits of morphological syste-
matics. In Gittenberger E. e Goud J. (Eds.):
Proceedings of the Ninth International Malaco-
gical Congress, Edinburgh, 1986. Unitas Mala-
cologica, Leiden: 153-172.
HIDALGO J. G. 1875. Catálogo iconográfico y des-
criptivo de los moluscos terrestres de España,
Portugal y las Baleares. Madrid. pp. 223, lam.
A, 1-44, pp. 46.
HOLYOAK G. A. 2009. Ferrissia fragilis (Gastro-
poda: Planorbidae) in Portugal. Noticiario de
la Sociedad Española de Malacología, 52: 41-42.
LOCARD A. 1899. Conchyliologie Portugaise. Les
coquilles terrestres des eaux douces et sauma-
tres. Archives du Muséum d'Histoire Naturelle
de Lyon, 7 (1): i-iv, 1-303.
MARTÍNEZ-ORTÍ A. 2006. Balea heydeni Von Malt-
zan, 1881 (Gastropoda, Clausilidae) en Es-
paña: características conquiológicas y distri-
bucción. Noticiario de la Sociedad Española de
Malacologia, 45: 30-37.
MORELET A. 1845. Description des Mollusques
terrestres et fluviatiles du Portugal. J.-B. Bailliere,
Paris. 115 pp., 14 pl.
NOBRE A., 1885. Catalogue des Mollusques des
environs de Coimbre (Portugal). Annales de
la Societé Royale Malacologique de Belgique, 20:
45-62.
NOBRE A. 1930. Moluscos terrestres, fluviais e das
águas salobras de Portugal. Companhia Editora
do Minho, Barcelos. 259 pp., 18 pl.
RODRÍGUEZ T., HERMIDA J. E OUTEIRO A. 1993.
La Superfamilia Zonitoidea Mórch, 1864 en
Portugal. Revista da Academia Galega de Cien-
cias, 12: 57-66.
O Sociedad Española de Malacología Iberus, 28 (Oy 51-62, 2010
Notes on Mediterranean Dizoniopsis (Gastropoda:
Cerithiopsidae), with the description of two new species
Apuntes sobre los Dizoniopsis (Gastropoda: Cerithiopsidae) del
Mediterráneo, con la descripción de dos especies nuevas
Philippe BOUCHET*, Serge GOFAS** and Anders WARÉN***
Recibido el 8-XI-2010. Aceptado el 10-XI-2010
ABSTRACT
Species-level taxonomy is reviewed for the Mediterranean Cerithiopsidae with a sculpture
formed by two rows of beads. The two previously known species are assigned respectively
to Dizoniopsis coppolae [Aradas, 1870) and D. concatenata (Conti, 1864) and are held
as distinct from the fossil type species Dizoniopsis bilineata (Hórnes, 1848). Two addi-
tional species, which are found sympatrically with these in the Strait of Gibraltar, are des-
cribed as new. Dizoniopsis micalii Cecalupo and Villari 1997 is reassigned to the genus
Cerithiopsis.
RESUMEN
Se revisa la taxonomía de las especies mediterráneas de Cerithiopsidae con escultura for-
mada por dos filas de gránulos. Las dos especies previamente conocidas se asignan res-
pectivamente a Dizoniopsis coppolae (Aradas, 1870) y D. concatenata (Conti, 1864) y
se consideran distintas de la especie tipo fósil Dizoniopsis bilineata (Hórnes, 1848). Dos
especies adicionales, que se encuentran en el estrecho de Gibraltar en simpatría con las
anteriores, se describen como nuevas. Dizoniopsis micaliiCecalupo y Villari 1997 se reu-
bica en el género Cerithiopsis.
INTRODUCTION
The Cerithiopsidae are a family of
small gastropods, distributed world-
wide in tropical and temperate shelf
environments. There are many genera
and species, difficult to recognize
because there is very little differentia-
tion in shell morphology. All may be
characterized by small (3 to 10 mm) size,
brown to dark colour, high spire and
usually a spiral sculpture of beaded
cords. Cerithiopsidae are specialized for
feeding on sponges and this feature is
shared with the Triphoridae, another
family in which differentiation at
generic level is not reflected in shell
characters. The question of the relation-
ship between the two families remains
beyond the scope of this paper.
* Muséum National d'Histoire Naturelle, Département Systématique et Evolution USM 603/UMR 7138 *
Systématique, Adaptation, Evolution”, Equipe “Exploration de la Biodiversité”, Case Postale 51, 55, Rue
Buffon, F-75231 Paris Cedex 05, France.
** Departamento de Biología Animal, Facultad de Ciencias, Universidad de Málaga, Campus de Teatinos - E-
29071 Málaga, Spain.
** Department of Invertebrate Zoology, Swedish Museum of Natural History, Box 50007, SE-10405
Stockholm, Sweden.
51
Iberus, 28 (2), 2010
The genus-level taxonomy of the
Cerithiopsidae remains to be worked
out in most areas of the world, inclu-
ding Europe. The most relevant contri-
bution is that of MARSHALL (1983) based
on New Zealand species. The Medite-
rranean species have been described in
numerous papers, scattered in the litera-
ture and usually dealing with one or
two species at a time. lt was our inten-
tion, many years ago, to provide a revi-
sion of all European species known to
date. For this we accumulated substan-
tial data, but the revision was not com-
pleted and, meanwhile, most of the
species then undescribed were named
by other authors.
Among European cerithiopsids, a
noteworthy and easily recognized mor-
phological group is composed by
species in which the teleoconch sculp-
ture is composed of only two rows of
beads until at least the penultimate
whorl. In most of the other Mediter-
ranean species of the family, there are
two (rarely three) cords on the first
teleoconch whorl and a third one is
added very early, adapically along the
suture.
SACCO (1895) introduced Dizoniopsis
as a subgenus of Cerithiopsis, for
Neogene fossils which were said to
differ by having two rows of granules
per whorl only. This character is shared
by some Recent Mediterranean repre-
sentatives, for which the name of the
Miocene type species has been repeat-
edly used. There are two clearly differ-
ent Recent species, long recognized by
Mediterranean authors, but much con-
fusion has arisen regarding which name
should be used for one or another of
them.
This report is mostly based on mate-
rial collected around Ceuta, in the west-
ernmost part of the Mediterranean,
during a workshop organized by
Philippe Bouchet (Muséum National
d'Histoire Naturelle, Paris) and José
Carlos Garcia Gómez (Universidad de
Sevilla), in May 1986. We here summa-
rize published records on the two previ-
ously known species, and describe two
additional species from the Strait of
Gibraltar.
Abbreviations:
MNHN Muséum National d'Histoire
Naturelle, Paris
sh. shell(s)
spm live taken specimen(s)
Genus Dizontopsis Sacco, 1895
Type species: Cerithium bilineatum Hórnes, 1848, by original designation (Steinebrunn, Middle
Miocene, Vienna Basin)
The type species of Dizoniopsis has
been illustrated by LANDAU, LA PERNA
AND MARQUET (2006) who designated a
lectotype. The illustrated protoconch is
incompletely preserved but conserves
nearly two whorls, and therefore is pre-
sumably multispiral with nearly three
whorls if complete. The sculpture of this
protoconch consists of two moderate
spiral keels on the penultimate whorl,
the abapical one becoming concealed by
the suture on the last whorl, and of flex-
uose axial riblets forming a reticulate
pattern with the keels.
This protoconch morphology differs
radically from that of the two Recent
iZ
Mediterranean species, adequately illus-
trated and discussed by PALAZZI AND
VILARI (2001). Conversely, it is quite
similar to the protoconch of the Recent
Dizoniopsis apexclarus Rolán, 2007,
described from the islands of the Gulf of
Guinea, which differs in having a single
keel on the penultimate whorl and
hardly more than two whorls in total.
The outcome is that the name Dizo-
niopsis bilineata cannot be used for a
Recent Mediterranean species. Other
available names which have been used
for this group of species, viz. Cerithiopsis
clarkii Forbes and Hanley, 1851,
Cerithium concatenatum Conti, 1864 and
BOUCHET ET AL.: Two new Mediterranean species of the genus Dizoniopsis
Cerithiopsis coppolae Aradas, 1870, are
discussed hereafter.
An additional Mediterranean species
was originally described as Dizoniopsis
micalii by CECALUPO AND VILLARI (1997)
and is still currently held in this binomen.
It differs from the species discussed herein
in both the protoconch and teleoconch
characters, and we consider it better
assigned to Cerithiopsis s. 1. Its protoconch
has axial ribs resembling Cerithiopsis scalaris
Locard, 1892 whereas the teleoconch starts
with two rows on granules on the early
whorls as most Cerithiopsis species, but
later completes three rows like in the type
species Cerithiopsis tubercularis.
Dizoniopsis coppolae (Aradas, 1870) (Figs. 1-4)
Cerithiopsis coppolae Aradas, 1870: Atti Accad. Gioenia Sc. Nat., (3) 4: 263-268 [Ognina near Catania,
Sicilia] — Pallary, 1920, Expl. Scient. Maroc: 45 .
Cerithiopsis bilineata var. ventricosa Brusina, 1871, Bull. Malac. Ital., 4: 5-7 [Croatia]
Cerithiopsis bilineata [non (Hórnes, 1848)] — Monterosato, 1877, J. Conchy]l., 25: 41; Monterosato,
1878, Giorn. Sc. Nat. Econ. Palermo, 99; Kobelt, 1908, Iconogr. vol. 4: 118, pl. 120, fig. 14-15.
Cerithiopsis (Dizoniopsis) bilineata [non (Hórnes, 1848)] - Nordsieck, 1968, Europ. Meeres-Gehius-
eschnecken: 70, pl. 11 fig. 43.10.
Dizoniopsis euxinica haifensis Nordsieck, 1972, Arch. Molluskenk., 102: 234 [Shiqmona, Israel].
Cerithiopsis (Dizontopsis) bilineata [non (Hórnes, 1848)] and var. concatenata [non (Conti, 1864)] —
Fekih and Gougerot, 1974, Bull. Inst. Océanogr. Péche Salammbó: 184-185, 207-208.
Cerithiopsis (Dizoniopsis) coppolae Aradas, 1870 — Nordsieck, 1976, La Conchiglia 87-88: 7 — Palazzi
and Villari, 2001, La Conchiglia, 297, suppl.: 15-18, 38-40.
Dizoniopsis coppolae (Aradas, 1870) — Oliver Baldoví, 2007, Iberus 25(2): 32.
Type material: C. coppolae, whereabouts unknown. C. bilineata var. ventricosa: 61 syntypes from
mixed Dalmatian localities (Otok, Lapad, Lokrum) in Croatian Natural History Museum, Zagreb,
reg. n” 1295, and 13 syntypes in Jeffreys collection ex Brusina, USNM 187810. D. euxinica haifensis:
7 syntypes SMF 239381 /1 (the shell figured by Nordsieck) and 239382 /6.
Material examined: Portugal. - Sagres, Ponta da Baleeira, 37” 00.37 N — 08” 55.5” W, 17-23 m, 2 sh.
(4.0 x 1.5 to 4.8 x 1.8 mm without protoconch), Mission Algarve 1988 (MNHN). Morocco.- Asilah,
from beach drift, 4 sh. (up to 3.5 x 1.3 mm without protoconch). Strait of Gibraltar. — Ceuta, Punta
Almina, 35” 54.1” N-05* 16.5” W, submarine cliff 25-40 m, 2 sh. (4.4 x 1.7 mm, 5.1 x 1.8 mm, MNHN).
Ceuta, Punta del Desnarigado, 35” 53.6” N — 05” 16.8” W, 16-20 m, 1 old sh. (4.8 x 1.8 mm, MNHN).
Italy, Sicily. - Acitrezza, 1 sh. (3.9 x 1.3 mm), Mission Sicile 1990 (MNHN). Brucoli, 1 sh. (4.7 x 1.4
mm), Mission Sicile 1990 (MNHN). Tunisia. — Djerba, 78 sh. (3.5 x 1.2 to 4.7 x 1.4 mm), col. Bouchet
and Warén, 1982 (UNHN).
Description: Shell up to a little more
than 5 mm, high conical, solid, with
about 2 * /4 protoconch whorls and 10-12
teleoconch whorls. Protoconch narrow
and styliform, easily broken off, with
convex whorls and a sculpture of flexu-
ous axial riblets which start from the
adapical suture and gradually fade out;
these are irregularly distributed on the
last protoconch whorls and vary in
strength among individuals. Sculpture
of teleoconch composed by two spiral
cords, approximately as broad as the
intervening space, crossed by axial ribs
which form very distinct beads at their
intersection with the cords. On the first
teleoconch whorl, the abapical cord is
more prominent than the other one and
the axial ribs are not very conspicuous.
On the following whorls, the adapical
cord progressively takes over as the
thickest one. On the last whorl, the
beads of the adapical cord become
slightly more elongated but do not split.
The abapical part of the body whorl
bears one cord, slightly ragged but not
beaded, in prolongation of the suture,
and two more similar cords between
this and the siphonal canal; these cords
are markedly narrower than the beaded
cords on the ribs and the spaces
between them are crossed by raised
53
Iberus, 28 (2), 2010
Figures 1-4. Dizoniopsis coppolae (Aradas, 1870). 1: shell from Djerba, Tunisia (actual size 4.4
mm); 2: protoconch of another specimen from the same locality (scanning electron micrograph; 3,
4: shell from Ceuta, Strait of Gibraltar, Punta Almina 25-40 m (actual size 5.1 mm).
Figuras 1-4. Dizoniopsis coppolae (Aradas, 1870). 1: concha de Djerba, Túnez (tamaño real 4,4
mm); 2: protoconcha de otro ejemplar de la misma localidad (micrografía electrónica de barrido); 3, 4:
concha de Ceuta, estrecho de Gibraltar, Punta Almina 25-40 m (tamaño real 5,1 mm).
threads parallel to the growth lines.
Aperture oval, with a broad and short
siphonal canal and a smaller channel at
the opposite end. Adult shells have a
rounded, but not thickened edge to the
outer lip. Colour brown, grading to
paler or even white towards the apical
whorls; the nodes are paler with a
greyish hue contrasting with the dark
brown on spaces between nodes on the
cords, and the abapical cords are also
somewhat darker than the intervening
spaces. Animal unknown.
Remarks: It is strange that ARADAS
(1870) dedicated a special paper to the
description of this species whereas a few
years later ARADAS AND BENOIT (1876:
239) do not list it as valid, mentioning
instead that some authors hold it as a
variety of Cerithium tuberculare, and do
not even retain Cerithiopsis as distinct
from Cerithium. Most Mediterranean
authors subsequently used the name
54
Cerithiopsis bilineata for this species, fol-
lowing the lead by MONTEROSATO (1878).
This species has been adequately
figured and discussed by PALAZZI AND
VILLARI (2001) who noted the variability
in the protoconch sculpture. The distrib-
ution of this species seems to be
restricted. It is widespread in the
Eastern and Central Mediterranean, but
there are hardly any records from the
coasts of France and Spain in the
Western basin, and it is represented in
our material from the Strait of Gibraltar
by only three old shells. It is neverthe-
less cited by OLIVER BALDOVÍ (2007) in
shell grit surrounding Posidonia grounds
in the bay of Valencia, and by PALLARY
(1920) from the Atlantic coast of
Morocco. The specimens collected in the
Strait of Gibraltar and in the Algarve are
somewhat larger and broader than those
from Tunisia and Sicily, and all lack a
protoconch.
BOUCHET ET AL.: Two new Mediterranean species of the genus Dizoniopsis
Dizontopsis concatenata (Conti, 1864) (Figs. 5-12)
Cerithium concatenatus Conti, 1864, Il Monte Mario..: 51. — Landau, La Perna and Marquet, 2006,
Palaeontos 10: 11, 15-16.
Cerithi == clarkii [non Forbes and Hanley, 1851] — Monterosato, 1877, J. Conchyl., 25: 41; Mon-
te. 378, Giorn. Sc. Nat. Econ. Palermo, 99; Kobelt, 1908, Iconogr. vol. 4: 126-127, pl. 120,
fig. 11-12.
Cerithiposis bilineata var. concatenata (Conti, 1864) - Cerulli-Irelli, 1912, Palaeontogr. Ital., 18: 149, pl.
23 fig. 50-51.
Cerithiopsis bilineata var. ventricosa [non Brusina, 1871] — Bucquoy, Dautzenberg and Dollfus,
1884, Moll. Roussillon, vol. 1: 205-206, pl. 27 fig. 10-12.
Cerithiopsis (Cerithiopsida) clarki [non Forbes and Hanley, 1851] - Nordsieck, 1968, Europ. Meeres-
Geháuseschnecken: 70, pl. 11 fig. 43.31.
Cerithiopsis (Dizoniopsis) clarki [non Forbes and Hanley, 1851] — Fekih and Gougerot, 1974, Bull.
Inst. Océanogr. Péche Salammbó 3: 184-185, 207-208.
Cerithiopsis (Dizoniopsis) bilineata [non (Hórnes, 1848)] - Nordsieck, 1976, La Conchiglia 87-88: 7, 18
(en parte) — Ros and Altimira 1977: 53 “de color pardo oscuro en los individuos recolectados
vivos”
Cerithiopsis bilineata [non (Hórnes, 1848)] - Giannuzzi Savelli et al., 1999: 44-45, fig. 76 a,b. —
Oliver Baldoví, 2007, Iberus, 25 (2): 49, fig. 34-35.
Cerithiopsis (Dizoniopsis) concatenata (Conti, 1864) — Palazzi and Villari, 2001, La Conchiglia, 297,
suppl.: 15-18, 38-40.
Type material: Lectotype (Landau, La Perna and Marquet, 2006) in coll. Cerulli-Irelli, Museo di
Paleontología dell'Universita di Roma “La Sapienza” (see remarks below).
Material examined: Portugal. - Sagres, Bay of Baleeira, 37” 00.7” N — 08* 55.0” W, 3-15 m, 1 spm.
drawing AL 132. (3.6 x 1.4 mm without protoconch), Mission Algarve 1988 (MNHN). Strait of
Gibraltar. - Ceuta, Punta del Saudiño, 35” 54.1'N — 05” 18.0"W, submarine cliff 17-35 m; drawing CE
38, 2 spm. (4.1 x 1.4, 4.0 x 1.4 mm); Punta del Desnarigado, 35” 53.6" N — 05” 16.8” W, 16-20 m, 1 old
sh. (UNHN). Mediterranean France. - Le Dramont 22-30 m, 3 sh. (up to 3.7 x 1.2 mm), leg. Pelorce
(MNHN). Illes d'Hyeres, Grande Passe 112-113 m, 2 sh. (3.8 x 1.2, 5.2 x 1.7 mm) leg. Picard 1956
(MNHN). Cap Morgiou, Calanque de la Triperie 22 m, 1 sh. juv., leg. Zibrowius 1996 (MNHN).
Unknown origin, possibly Roussillon, 2 spm. figured in Bucquoy, Dautzenberg and Dollfus (1884),
pl. 27 fig. 10-11 as C. bilineata var. ventricosa (3.9 x 1. 3 mm). Corsica. - Calvi, 1 spm. (4.5 x 1.5 mm,
MNHN). Italy. - Camogli, Genova, 42 m, 1 sh. (3.0 x 1.2 mm). Capraia, Le Formiche, 3 sh. (3.1 x
1.1 to 4 x 1.2 mm), leg. Palazzi (MNHN); Livorno 7-17 m, 2 spm. (4.2 x 1.2), leg. Palazzi (MNHN).
Sicily, Acitrezza 36 m, 4 sh. (full grown 3.2 x 1.1 to 4.0 x 1.4 mm), leg. Spada (SMNH). Acitrezza,
1 sh. (4.3 x 1.3 mm), Mission Sicile 1990 (MNHN).
Description: Shell up to a little more
than 5 mm, high conical, solid, with
about 2 */4 protoconch whorls and 7 to 8
1/2 teleoconch whorls. Protoconch
narrow and styliform, easily broken off,
the first whorl rounded with a frosted
surface, the following with two well-
defined keels appearing progressively
and ruming rather close together along
the middle part of the whorl, more or
less connecting to the start of the beaded
cords on the first teleoconch whorl.
Limit protoconch-teleoconch not very
distinct. Sculpture of teleoconch com-
posed by two spiral cords, approxi-
mately as broad as the intervening
space, crossed by axial ribs which form
very distinct beads at their intersection
with the cords. On the first teleoconch
whorl, the abapical cord is markedly
more prominent than the other one and
overhangs the suture of the following
whorl; the axial ribs are there compara-
tively more apparent and more crowded
than on the second teleoconch whorl.
On the following whorls, the adapical
cord progressively takes over as the
thickest one. On the last whorl, the
beads of the adapical cord become elon-
gated in the axial direction and, on the
section preceding the aperture of adult
specimens, this cord tends to split and
33
Iberus, 28 (2), 2010
form two contiguous rows of beads,
which become still more narrow and
elongate. The abapical part of the body
whorl bears one thick beaded cord in
prolongation of the suture and another
one, flatter and not distinctly beaded, in
the intervening space between this and
the siphonal canal. Aperture oval, with a
broad and short siphonal canal and a
smaller channel at the opposite end.
Adult shells have a rounded, but not
thickened edge to the outer lip. Colour
brown, grading to paler or even white
towards the apical whorls.
Animal with an elongated foot, with
propodium truncated in front and bor-
dered anteriorly by a mentum, the
median part rather narrowing, and the
metapodium broadly ovate. Opening of
the pedal gland conspicuous at the ante-
rior end of metapodium, prolonged
towards the posterior end by an axial
groove on the sole. Head devoid of
snout, provided with two elongate
cephalic tentacles which are not sepa-
rated at their base by any rim or
swelling, and form a V-shape when
extended. Eyes black, rounded, situated
within the base of the tentacles without
forming a distinct swelling, not sur-
rounded by any opaque granular mater-
ial. Opercular lobe rather thick, not con-
taining any opaque granular material.
Mantle with a smooth edge.
Remarks: This species is clearly sepa-
rated from Dizoniopsis coppolae and D.
bilineata by both protoconch and teleo-
conch characters. The protoconch lacks
axial sculpture, whereas on D. coppolae it
is covered with flexuous axial ribs and
lacks spiral keels (see PALAZZI AND
VILLARI, 2001: figs 65-69); its two periph-
eral keels remain on the median part of
the whorl contrary to the fossil D. bilin-
eata in which the abapical keel is con-
cealed by the suture on the last proto-
conch whorl. The teleoconch differs
from D. coppolae in several clearcut char-
acters of the body whorl. The subsutural
cord definitely splits before reaching the
outer lip of the aperture, and there
accounts for more than one-third of the
height of the whorl, whereas in D. coppo-
lae this cord does not split and does not
So)
exceed one-quarter of the height of the
whorl. The most obvious distinguishing
feature is that there are only two abapi-
cal cords on the base (one in prolonga-
tion of the suture, and one more)
whereas there are three (one in the pro-
longation of the suture and two more) in
D. coppolae. The colour pattern is also
different. Although grading from lighter
to darker from apex to later whorls, it is
uniformly brown on one particular
whorl whereas in D. coppolae the nodes
have a greyish hue contrasting with the
dark brown on spaces between nodes on
the cord, and with an intermediate light
brown in the intervening spaces
between cords; it is clear from this that
Ros AND ALTIMIRA (1977) observed this
species, and not D. coppolae, on the
Catalan coast.
The areas behind the eyes and
beneath the operculum are translucent
and similar in texture to the remaining
surface of the body, contrary to most
cerithiopsids we have observed and
particularly to Cerithiopsis tubercularis,
where these areas are densely furnished
with whitish or yellowish granules. The
animal was observed alive in two differ-
ent localities (Ceuta and Algarve) which
rules out that this difference is acciden-
tal.
MONTEROSATO (1877, 1878) was the
first to distinguish two species among
Mediterranean cerithiopsids having two
rows of granules, and used for them
respectively the names Cerithiopsis bilin-
eata (considering C. coppolae as a
synonym) and C. clarkii. Cerithiopsis
clarkii Forbes and Hanley, 1851 (vol. 3 p.
368, vol. 4 pl. 103 fig. 6) was introduced
conditionally, based on a specimen col-
lected at Exmouth, in the English
Channel. All the species of Cerithiopsi-
dae found in Britain, including the type
species Cerithiopsis tubercularis
(Montagu, 1803), have normally three
rows of granules on the whorls but may
occasionally display two or four rows,
usually after an accident in shell
growth. Therefore JEFFREYS (1867: 267)
was definitely correct in his interpreta-
tion of the specimen as a teratological
“Monstr. Clarkii” of Cerithiopsis tubercu-
BOUCHET ET 4L.: Two new Mediterranean species of the genus Dizoniopsis
Figures 5-11. Dizoniopsis concatenata (Conti, 1864). 5, 6: specimen from Ceuta, Strait of Gibral-
tar, Punta del Saudiño 17-35 m (actual size 4.1 mm, same specimen as fig. 12); 7: another speci-
men from the same locality (scanning electron micrograph, actual size 4.1 mm); 8: protoconch,
same specimen; 9, 10: shell from Le Dramont, Mediterranean coast of France, 22-30 m (actual
size 3.6 mm); 11: shell from Aci Trezza near Catania, Sicily (actual size 4.1 mm).
Figuras 5-11. Dizoniopsis concatenata (Conti, 1864). 5, 6: ejemplar de Ceuta, estrecho de Gibraltar,
Punta del Saudiño 17-35 m (tamaño real 4,1 mm, mismo ejemplar que fig. 12); 7: otro ejemplar de la
misma localidad (micrografía electrónica de barrido, tamaño real 4,1 mm); 8: protoconcha, mismo
ejemplar; 9, 10: concha de Le Dramont, costa mediterránea de Francia, 22-30 m (tamaño real 3,6
mm); 11: concha de Aci Trezza cerca de Catania, Sicilia (tamaño real 4,1 mm).
/
Iberus, 28 (2), 2010
Figure 12. Dizoniopsis concatenata (Conti, 1864), living animal from Ceuta, Strait of Gibraltar,
Punta del Saudiño 17-35 m (same specimen as fig. 5-6). Figure 13. Dizoniopsis aspicienda spec.
nov., living animal of the holotype from Ceuta, Strait of Gibraltar, Punta Almina 25-40 m (same
specimen as fig. 14-15).
Figura 12. Dizoniopsis concatenata (Conti, 1864), animal vivo de Ceuta, estrecho de Gibraltar,
Punta del Saudiño 17-35 m (mismo ejemplar que fig. 5-6). Figura 13. Dizoniopsis aspicienda spec.
nov., animal vivo del holotipo de Ceuta, estrecho de Gibraltar, Punta Almina 25-40 m (mismo ejem-
plar que fig. 14-15).
laris, noting that the early whorls have
the usual three rows, and this was also
the view of MARSHALL (1911). NORD-
SIECK (1968) first used the name
Cerithiopsis (Cerithiopsida) clarki (written
with one “i”) for this species, but later
(Nordsieck, 1976) assigned it to C.bilin-
eata and considered C. clarki (based on
the figure of Forbes and Hanley) to
occur only in the Atlantic. His figure of
C. bilineata on p. 18 is nevertheless C.
coppolae.
CERULLFIRELLI (1912) used the name
C. bilineata var. concatenata (Conti, 1864)
and illustrated a specimen from the type
locality, the lower Pleistocene strata of
Monte Mario near Rome, which is defi-
nitely the species considered here. The
same shell is again figured by LANDAU,
58
LA PERNA AND MARQUET (2006) and
designated as lectotype of Cerithium con-
catenatus Conti, 1864. Cerulli-Irelli stated
to have identified his specimens by
comparison with Conti's type material.
This interpretation was also that of
PALAZZI AND VILLARI (2001) but contra-
dicts MONTEROSATO (1884: 134; 1890:
163) and MARSHALL (1895: 38) who con-
sidered that Cerithium concatenatus was
the same as Cerithiopsis pulchella Jeffreys,
1858 (= C. jeffreysi Watson, 1885).
However, both are somewhat at odds
with Conti's original description (repro-
duced in VAN AARTSEN, MENKHORST
AND GITTENBERGER, 1984: 29), which
mentions three rows of granules on the
whorls and four on the body whorl of
which there is one smaller next to the
BOUCHET ET AL.: Two new Mediterranean species of the genus Dizoniopsis
200 um
Figures 14-17. Dizoniopsis aspicienda spec. nov. 14, 15: holotype, specimen from Ceuta, Strait of
Gibraltar, Punta Almina 25-40 m (actual size 4.9 mm); 16: paratype, specimen from Ceuta,
Benzú, 24 m (scanning electron micrograph, actual size 4.2 mm); 17: protoconch, same specimen.
Figuras 14-17. Dizoniopsis aspicienda spec. nov. 14, 15: holotipo, ejemplar de Ceuta, estrecho de
Gibraltar, Punta Almina 25-40 m (tamaño real 4,9 mm); 16: paratipo, ejemplar de Ceuta, Benzú, 24
m, (micrografía electrónica de barrido, tamaño real 4,2 mm); 17: protoconcha, mismo ejemplar.
suture and the two on the middle of the
whorl merging into a single one (hence
the name).
Our understanding of the taxon is
here based on the lectotype illustrated
by LANDAU, LA PERNA AND MARQUET
(2006). This specimen may not be eligi-
ble as such because of not forming part
of Conti's original material, the where-
abouts of which are unknown. It is not
desirable as a neotype either, because it
lacks a protoconch. Therefore, if it is
demonstrated that this is not Conti's
species, it may have to be named as a
new species but we nevertheless con-
sider it more parsimonious, for the sta-
bility of nomenclature, to continue
usage of this name instead of leaving
Cerithium concatenatus as a nomen
dubium.
Dizoniopsis aspicienda spec. nov. (Figs. 13-17)
Type material: Holotype, live-collected specimen, Ceuta, Punta Almina, 35” 54.1” N- 05” 16.5 W,
38-40 m, drawing CE 18 (4.9 x 1.8 mm), MNHN 23283. Paratype, Ceuta, Benz, 35” 55.0” N, 05” 22.5"
W, 24-26 m (4.2 x 1.6 mm), MNHN 23284.
Etymology: meaning “worth looking at”, alluding to the handsome aspect of the species.
99
Iberus, 28 (2), 2010
Figures 18, 19. Dizoniopsis abylensis spec. nov. 18: holotype, shell from Ceuta, Strait of Gibraltar,
200 um
Punta del Saudiño 17-35 m (actual size 3.8 mm); 19: protoconch of a juvenile shell from Ceuta,
Punta Bermeja, 27-32 m.
Figuras 18, 19. Dizoniopsis abylensis spec. nov. 18: holotipo, concha de Ceuta, estrecho de Gibraltar,
Punta del Saudiño 17-35 m (tamaño real 3,8 mm); 19: protoconcha de una concha juvenil de Ceuta,
Punta Bermeja, 27-32 m.
Description: Shell up to nearly 5 mm,
definitely cyrtoconoid, solid, with about
2 protoconch whorls and 7 to 7 ?/2 teleo-
conch whorls. Protoconch narrow and
styliform, easily broken off, the first
whorl with a frosted surface, the follow-
ing with one well-defined keel appearing
progressively and running at about two-
thirds of the whorl, closer to the adapical
suture, and a less pronounced one situ-
ated more abapically; both more or less
connecting to the start of the beaded
cords on the first teleoconch whorl. Limit
protoconch-teleoconch not very distinct.
Sculpture of teleoconch composed of two
spiral cords, approximately as broad as
the intervening space, crossed by axial
ribs which form very distinct beads at
their intersection with the cords. On the
first teleoconch whorl, the abapical cord
is markedly more prominent than the
other one and overhangs the suture of the
following whorl. On the following
whorls, the adapical cord progressively
takes over as slightly thicker. On the last
whorl, the beads of the adapical cord
become elongated in the axial direction
and, on the section preceding the aper-
60
ture of adult specimens, this cord tends
to split and form two contiguous rows of
beads. The abapical part of the body
whorl bears one thick beaded cord in
prolongation of the suture and another
one, flatter and not distinctly beaded, in
the intervening space between this and
the siphonal canal. Aperture oval, with a
broad and short siphonal canal and a
smaller channel at the opposite end.
Adult shells have a rounded, but not
thickened edge to the outer lip. Colour
white to very pale tan.
Animal essentially like in D. concate-
nata, but markedly smaller in relation to
the shell and with cephalic tentacles
broader and flatter.
Remarks: This species is only repre-
sented by these two specimens, but is
clearly separable from sympatric D. con-
catenata by having a pale, nearly white
shell, by the cyrtoconoid, rather pupoid
teleoconch which is markedly broader
at the same height, and by lacking the
paired keels on the later larval whorls.
Like D. concatenata, it has been observed
to lack the granular masses behind the
eyes and beneath the operculum.
BOUCHET ET AL.: Two new Mediterranean species of the genus Dizoniopsis
Dizoniopsis abylensis spec. nov. (Figs. 18-19)
Type material: Holotype, shell, Ceuta, Strait of Gibraltar, Punta del Saudiño, 35” 54.1” N — 05” 18.0'
W, submarine cliff 17-35 m; m (3.8 x 1.6 mm), MNHN 23285. Paratype, juvenile shell from Ceuta,
Punta Bermeja, 35” 54.6' N — 05” 20.3” W, 27-32 m (1.8 mm), MNHN 23286.
Etymology: from Abyla, the name of Ceuta in classical Antiquity.
Description: Shell up to nearly 4 mm,
slightly cyrtoconoid, solid, with about 2
protoconch whorls and 7 teleoconch
whorls. Protoconch narrow and styli-
form, easily broken off, the first whorl
rounded with a frosted surface, the fol-
lowing with two well-defined keels
appearing progressively and running
along the middle part of the whorl,
more or less connecting to the start of
the beaded cords on the first teleoconch
whorl. Limit protoconch-teleoconch not
very distinct. Sculpture of teleoconch
composed by two spiral cords, approxi-
mately as broad as the intervening
space, crossed by axial ribs which form
very distinct beads at their intersection
with the cords. On the first teleoconch
whorl, the abapical cord is markedly
more prominent than the other one and
overhangs the suture of the following
whorl. On the last two whorls, the
adapical cord progressively takes over
as slightly thicker. On the last whorl,
this cord tends to split and form two
contiguous rows of beads. The abapical
part of the body whorl bears one well
defined, smooth cord in prolongation of
the suture and the intervening space
between this and the siphonal canal is
smoothish and excavated, with a weak
spiral swell which is too poorly defined
to be taken as a cord. Aperture oval,
BIBLIOGRAPHY
ARADAS A. 1870. Descrizione di una specie
malacologica nuova. Atti dell" Accademia Gioe-
nia di Scienze Naturali, (3) 4: 263-268.
ARADAS A. AND BENOIT L. 1872-1876. Conchigli-
ologia vivente marina della Sicilia. Atti del-
l'Accademia Gioenia di Scienze Naturali, (3) 6:
1-112 + pl. 1-2 [1872]; 113-226 + pl. 3-4 [1874);
227-324 + pl. 5[1876] (dates of publication ac-
cording to Bouchet P. 1982, Bollettino Mala-
cologico 18: 177-180).
with a broad and short siphonal canal
and a smaller channel at the opposite
end. Adult shells have a rounded, but
not thickened edge to the outer lip.
Colour pale brown, with the beads on
the spiral cords lighter, the intervening
spaces between beads on the cords and
the smooth cord on the base darker.
Animal unknown.
Remarks: Although represented by
only one adult specimen and a juvenile,
this species is so strikingly different
from the other two sympatric species of
Dizoniopsis that we venture its descrip-
tion as new. The shell is stouter than D.
concatenata and D. aspicienda, but the
most noteworthy character is the config-
uration of the base with one smooth
cord in prolongation of the suture (dis-
tinctly beaded in the other two species)
and an excavated surface between this
and the suture (furnished with a distinct
cord in the other two species); this char-
acter is held as significant since the
holotype is a completely adult individ-
ual with a well-formed aperture. The
colour pattern is also different, and rem-
iniscent of D. coppolae with lighter beads
contrasting on cords which are darker
than the intervening spaces; however
the latter differs in having three cords
on the base and a very different proto-
conch, with axial ribs.
CECALUPO A. AND VILLARI A. 1997. Dizoniopsis
micalíí. Una nuova specie per il Mediterraneo
(Mesogastropoda: Cerithiopsidae). Bollettino
Malacologico, 32 (1-4): 41-44.
CERULLFIRELLI S. 1912. Fauna Malacologica
Mariana. Parte 6. Gastropoda: Cerithiidae
Cerithiopsidae, Triforidae, Diastomidae, Ver-
metidae, Turritellidae, Mathildidae, Caecidae.
Palaeontographia Italica, 18: 141-169. pl. 23-25.
61
Iberus, 28 (2), 2010
CONTI A. 1864. 1! Monte Mario ed i suoi fossili sub-
appennini raccolti e descritti dallo scultore e pa-
leontologo. Roma, G. Cesaretti, 57 pp.
FEKIH M. AND GOUGEROT L. 1974. Liste com-
mentée des gastéropodes testacés marins re-
cueillis dans les dépots littoraux actuels du
Golfe de Tunis. Bulletin de l'Institut National
Scientifique et Technique d'Océanographie et de
Péche de Salammbo, 3 (1-4): 185-232
FORBES E. AND HANLEY S.C. 1848-1853. A his-
tory of British Mollusca and thetr shells. London,
van Voorst. Vol. 1: 1-486 (1848). Vol. 2: 1-480
(1 dec. 1849); 481-557 (1850). Vol. 3: 1-320
(1850) 321-616 (1851). Vol. 4: 1-300 (1852). In-
troduction, plates -LXXX [1853].
GIANNUZZESAVELLIR., PUSATERI F., PALMERI A.
AND EBREO C. 1999. Atlante delle conchiglie
marine del Mediterraneo, vol. 3 : Caenogastropoda
(parte 2: Ptenoglossa). Evolver, Roma. 127 p.
JEFFREYS J. G. 1862-1869. British Conchology. Lon-
don, van Voorst. Vol. 1: pp. CXIV + 341 [1862].
Vol. 2: pp. 479 [1864]. Vol. 3: pp. 394 [1865].
Vol. 4: pp. 487 [1867]. Vol. 5: pp. 259 [1869].
KOBELT W. 1906-1908. Iconographie der schalen-
tragende europiáischen Meeresconchylien. Part 4:
1-80, pl. 99-114 [1906]; 81-172, pl. 115-126
[1908]. Wiesbaden, C.W. Kreidel.
LANDAU B., La PERNA R. AND MARQUET R.
2006. The Early Pliocene Gastropoda (Mol-
lusca) of Estepona, southern Spain, Part 6:
Triphoroidea, Epitonioidea, Eulimoidea.
Palaeontos, 10: 1-96, pl. 1-22.
MARSHALL B.A. 1978. Cerithiopsidae (Mollusca:
Gastropoda) of New Zealand, and a provi-
sional classification of the family. New Zealand
Journal of Zoology, 5: 47-120.
MARSHALL J.T. 1895. Alterations in “British Con-
chology”. [Part !1.]. Journal of Conchology 8: 24-
41 [January 1895].
MARSHALL J.T. 1911-1912. Additions to British
Conchology. Part VII. Journal of Conchology 13:
179-190 [April 1911]; 192-209 [July 1911]; 223-
231 [October 1911]; 294-306 [April 1912], 324-
338 [July 1912].
62
MONTEROSATO T. A. DI 1877. Note sur quelques
coquilles provenant des cótes d'Algérie.
(Trad. di H. Crosse). Journal de Conchyliolo-
ge, 25 (1): 24-49, pl. 2, 3.
MONTEROSATO T. A. DI 1878. Enumerazione e
sinonimia delle Conchiglie mediterranee.
Giornale di Scienze Naturali ed Economiche di
Palermo, 13: 61-115.
NORDSIECK F. 1976. Il genere Cerithiopsis Forbes
€ Hanley, 1849 nei mari d'Europa. La
Conchiglia, 87-88: 3-7.
OLIVER BALDOVÍ J.D. 2007. Catálogo de los
Gasterópodos testáceos marinos de la parte
Sur del Golfo de Valencia (España). Iberus, 25
(2): 29-61.
PALAZZI S. AND VILLARI A. 2001. Molluschi e
Brachiopodi delle grotte sottomarine del
Taorminense. La Conchiglia, 297, suppl., 56 pp.
PALLARY P. 1920. Exploration scientifique du Maroc
organisée par la Société de Géographie de Paris
et continuée par la Société des Sciences Naturelles
du Maroc. Deuxieme fascicule. Malacologie
(1912). 108 p., 1 pl., 1 map. Rabat and Paris,
Larose.
ROLÁN E. 2007. A new species of Dizoniopsis
(Prosobranchia, Cerithiopsidae) from the
Gulf of Guinea Islands. Iberus, 25 (1): 33-36.
RosJ.D. AND ALTIMIRA C. 1977. Comunidades
bentónicas de sustrato duro del litoral NE es-
pañol. V. Sistemática de moluscos. Miscel-la-
nia Zoologica, 4 (1): 43-55.
SACCO F. 1895. I Molluschi dei terreni terziarii del
Piemonte e della Liguria. Parte XVII (Cerithiidae,
Triforidae, Cerithiopsidae e Diastomidae). 83 p,
3 pl. Torino, Carlo Clausen.
VAN AARTSEN J.J., MENKHORST H.P.M.G. AND
GITTENBERGER E. 1984. The marine Mollusca
of the Bay of Algeciras, Spain, with general
notes on Mitrella, Marginellidae and Turri-
dae. Basteria, supplement 2: 1-135.
O Sociedad Española de Malacología —_—_—_——— Iberus, 28 (2): 63-72, 2010
Spawn and early development of NE Atlantic species of
Hypselodoris (Gastropoda: Opisthobranchia)
Puesta y desarrollo de especies del género Hypselodoris del Atlántico
nororiental (Gastropoda: Opisthobranchia)
Rita COELHO* ** and Goncalo CALADO***
Recibido el 23-X-2010. Aceptado el 24-X[1-2010
SUMMARY
Despite an existing review of the Atlantic species of the family Chromodorididae (Mol.
lusca: Nudibranchia], little is known about early development patterns of these species
due to the difficulty of collecting data from living animals. Six species of the genus
Hypselodoris inhabit the Portuguese continental coasts: H. bilineata, H. cantabrica, H.
fontandravi, H. picta, H. tricolor and H. villafranca. This paper is based on new data and
extensive studies made under laboratory conditions and aims to describe several aspects
of their reproduction, namely egg mass type, egg size and colour, duration of embryonic
development and development patterns. The data here obtained and existing developmen-
tal data for Atlantic Hypselodoris from the literature are also compared.
RESUMEN
A pesar de que existe una revisión de las especies atlánticas de la familia Chromodoridi-
dae (Mollusca: Nudibranchia), muy poco se conoce acerca de la biología y patrones de
desarrollo de estas especies debido a la dificultad de obtener datos a partir de ejempla-
res vivos. Seis especies del género Hypselodoris habitan en las costas continentales por-
tuguesas: H. bilineata, H. cantabrica, H. fontandravi, H. picta, H. tricolor y H. villafranca.
En el presente trabajo de aportan nuevos datos obtenidos de estudios en condiciones de
laboratorio con el objetivo de describir algunos aspectos de la biología reproductora de
estas especies, como el tipo de puesta, tamaño del huevo y color, duración del desarrollo
embrionario y patrón de desarrollo. Los datos obtenidos en el presente trabajo se (sinteti-
zan y) comparan con los existentes en la bibliografía.
INTRODUCTION
The Family Chromodorididae (Mol- AND GARCÍA-GÓMEZ, 1996) of the At-
lusca: Nudibranchia) comprises one of lantic species of the family Chromodori-
the most fantastic coloured Nudibranch didae Bergh, 1891 (Mollusca: Nudi-
groups of the Iberian Peninsula East branchia), studies specifically devoted
coast. Despite a review (ORTEA, VALDÉS to their reproductive biology, from egg
* Instituto Portugués de Malacologia, Zoomarine, E.N. 125, Km 65 Guia; 8201-864 Albufeira; Portugal. E-
mail: ipmalacOgmail.com
** Center of Marine Science-CCMAR, University of Algarve, Faro, Portugal.
*** Universidade Lusófona de Humanidades e Tecnologias, Av. do Campo Grande, 376
1749 - 024 Lisboa, Portugal.
63
Iberus, 28 (2), 2010
to metamorphosis are absent. General
data on egg mass shapes, egg size or
egg-to-juvenile periods are scarce, scat-
tered or absent. Quite often available
data come from one single specimen.
Furthermore, dispersion measures or
confidence intervals are mostly absent.
Like with most aspects of nudi-
branch biology, there is no general rule
concerning their life history and life
span. Most species seem to live for
about one year, although the tropical
Sea hare Dolabella auricularia has been
reported to live for six years in an
aquarium (HADFIELD AND SWITZER-
DUNLAP, 1984) and the cephalaspidean
Philine aperta can live for up to four
years in nature (LANCASTER, 1983). On
the other hand, there are small nudi-
branchs, especially those that live and
feed on short-lived cnidarian colonies
which can complete a life cycle in a few
weeks. For example, both the European
aeolid Tenellia pallida (Alder and
Hancock, 1842) [= T. adspersa (Nord-
mann, 1845)] and the coral-eating tropi-
cal aeolid Cuthona poritophages Rudman,
1979 can mature in three weeks (RAs-
MUSSEN, 1944; RUDMAN, 1979) and prob-
ably die within two or three months. In
the case of these very short-lived
species, they need to complete their life-
cycle before the colony they live and
feed on dies. If they are too slow then
they will themselves die from starvation
before they can breed.
Six species of the nudibranch genus
Hypselodoris inhabit the Atlantic coast of
Portugal (CERVERA, CALADO, GAVAIA,
MALAQUIAS, TEMPLADO, BALLESTEROS,
GARCÍA-GÓMEZ AND MEGINA, 2006):
Hypselodoris billineata (Pruvot-Fol 1953),
Hypselodoris cantabrica (Bouchet and
Ortea, 1980), Hypselodoris fontandraui
(Pruvot-Fol, 1951), Hypselodoris picta
webbi (D'Orbigny, 1839), Hypselodoris tri-
color (Cantraine, 1835), and Hypselodoris
villafranca (Risso, 1818).
In this paper we report for the first
time data on the spawn and early devel-
opment of six sympatric Hypselodoris
species from Portuguese continental
coasts maintained under similar labora-
tory conditions. Several aspects were
64
considered, namely egg mass type, egg
size and colour, duration of embryonic
development and development type.
MATERIAL AND METHODS
Specimens studied were collected on
subtidal surveys using scuba diving in
Arrábida (West Coast — 38” 30' 18” N, 8?
59 18” W) and the Algarve (South coast-
37” 00 08” N, 7” 49” 20” W), Portugal,
from April 2004 to June 2005. After col-
lection, the animals were brought to the
laboratory and placed in closed-circuit
40 L aquaria, where water quality was
monitored daily for temperature, pH
and salinity, and weekly for the pres-
ence of nitrites, nitrates and phosphates.
Individuals were kept at a constant tem-
perature (18+1*C), as similar as possible
to that of their natural environment,
because egg development timing is
known to be strongly affected by tem-
perature; this parameter was kept con-
stant in order to make developmental
comparisons. Adults of the same species
were kept together and fed with one of
their natural prey items, the corneous
demosponge Dysidea fragilis (Montagu,
1818), which is very common along the
Portuguese coasts.
Egg masses were generally laid on
the glass walls of the aquaria. The
oviposition was considered complete
when the adult abandoned the egg
mass. Then, the egg masses were care-
fully removed from the aquaria, incu-
bated individually in 500 L beakers at a
constant temperature (18"C+1) and
checked periodically until larval hatch-
ing. Extensive observations during
embryonic development were made
with an optical microscope at regular
periods (4-5 times a day) in the centre of
the egg mass, in order to register the
main development stages before hatch-
ing. Daily inspection of all aquaria was
necessary to ensure the measurement of
zygote diameters before first cleavage
since in these planktotrophic species
initial development is very fast.
The classification followed for
Hypselodoris egg masses is the one pro-
COELHO AND CALADO: Spawn and early development of NE Atlantic Hypselodoris
Figure 1. Egg ribbons of A. bilineata (A), H. picta webbi (B), and H. villafranca (C). Scale bars, 2 cm.
Figura 1. Puesta de H. bilineata (A), H. picta webbi (B) y H. villafranca (C). Escalas, 2 cm.
posed by WILSON (2002), which deals
exclusively with the family Chromodor-
ididae. According to this author,
Hypselodoris egg masses are grouped in
the following types: A) flat egg masses
attached to the substratum by the broad
side of the ribbon, B) egg masses with a
free edge, shorter or equal than the
attached edge causing the ribbon to
slope toward the centre or stand upright
respectively; C) egg masses with a free
edge, slightly longer or much longer
than the attached edge, causing the
ribbon to slope away from the centre of
the spiral or causing ondulations/waves,
with an outward slope.
The criteria used to classify the
species larval development were those
outlined by THomPSON (1967, 1976):
Type 1) planktotrophic development,
with a free veliger stage that can be
pelagic for an extended period of time
and that feeds obligatorily on plankton;
Type 2) development with lecitotrophic
larvae, with a short-life pelagic veliger
that can dispense with plankton feeding
due to their large yolk reserves; type 3)
direct development, without a free
pelagic larval phase.
RESULTS
Egg masses produced in the labora-
tory by these nudibranchs are identical
to those collected in the field. All
Hypselodoris spp. egg masses are shaped
like a spiral ribbon attached to the sub-
stratum along one edge and consisting
of embryos embedded in a gelatinous
matrix (Fig. 1).
Hypselodoris egg masses found are
grouped in two types: H. billineata, H.
cantabrica, H. fontandraui, H. picta, H. tri-
color have egg masses corresponding to
type C of WILSON (2002), whereas H. vil-
lafranca have type A ones. Developmen-
tal characteristics of the studied species
are summarized in Table 1.
H. villafranca is the only species stud-
ied with direct development. All ob-
served egg masses from this species had
embryos passing through a suppressed
veliger stage before hatching as benthic
juveniles. This form of direct develop-
ment has been categorized by BONAR
(1978) as ametamorphic direct develop-
ment, which means that this species
does not fully develop into a veliger be-
fore undergoing metamorphosis.
All other five Hypselodoris species
studied present a free living plank-
totrophic veliger, which have similar
developmental characteristics. Despite
the differences in egg dimensions (Table
D), hatching times were also very similar
(Fig. 2).
Right after complete oviposition we
could often observe two to three differ-
ent stages of development in the same
spawn. The first part to be released
could show second cleavage (4 cells), by
65
Iberus, 28 (2), 2010
Table I. Comparative table of developmental characteristics of species of the genus Aypselodoris of the
Portuguese Coast, at 18+1%C. When appropriate, mean measures are given + standard deviation.
Tabla I. Tabla comparativa de las características del desarrollo en especies del género Hypselodoris en
las costas portuguesas, a 18+1"C.
3
=> => EA
El 3 2 3 = E
> E E 2 E Eg $
S 3 E a E Ss B $
2 É SS E = e
5 3 E. a E 5 5d
3 3 A E ES
H. bilineata Eastern Atlantic 73.07+7.19 123.16+9.89 1 Plonktotrophic 7,75+0,25 139,5+4,4 10
H. contabrico Eosterm Atlantic 95.73+8.41 126.960.228 1 Planktotrophic 8.25+0.35 161.5+6.0 10
H. fontandravi — Eostem Atlantic 86.41+4.10 135.61+22.15 1 Planktotrophic 7.50+0.14 156.9+5.8 10
Caribbean and
H. pict ¡ :
picto webói Eastern Atlantic
171.16+10.52 314.73+41.73 1-2 Planktotrophic 8.04+0.13 219.2+8.3 10
H. tricolor Eastern Atlantic. 85.65+6.97 147.93+25.74 1 Planktotrophic 7.71+0.17 143.2=2.8 10
Eostern Atlantic,
except Canary
Islands. Madeira
and Azores
H. villafranca 243.69 + 46.06 389.60+45.32 1 Direct 28.00+0.82 515+23 10
DUAPIUL LY YIVUP - VAalabIe. HIS Halnctiig
Time hatching
_ E _ _— N N
oO Y co [Ce] o —
o o o o o Oo
—
a
Oo
o Mean
[] Mean + SE
| Mean + SD
140
HB HT HF HC HP
Species
Figure 2- Time hatching duration for all planktotrophic Hypselodoris species studied (HB= A.
bilineata, HT= H. tricolor, HF= H. fontandraui, HC= H. cantabrica, HP= H. picta).
Figura 2- Tiempo hasta la eclosión de las especies plAde Hypselodoris estudiadas (HB= H. bilineata,
HT= H. tricolor, HF= H. fontandraui, AC= H. cantabrica, AP= Hypselodoris picta).
66
COELHO AND CALADO: Spawn and early development of NE Atlantic Hypselodoris
Table H. Overview and timing of embryonic development in species of the genus Hypselodoris of
the Portuguese Coast, at 18+1%C.
Tabla II. Resumen de la cronología del desarrollo embrionario desarrollo en especies del género
Hypselodoris en las costas portuguesas, a 18+1"C.
E E
2 A S =
H. bilineata 2h 4h 7h 12
H. cantabrico Zh 4h 8h 13
H. fontandravi 2h 5h 7h 14h
H. picto 2h 3h 30' 8h 13h
H. tricolor 2h 5h 7h 13h
H. villafranca 2h 24h 47h 72h
the time the later eggs were emerging
from the oviduct, still undivided. The
stages from morula to blastula were
observed during day 0 for all species
except H. villafranca.
Gastrulation was seen during day 1
except in H. villafranca, where it was only
observed by day 9. Only after day 5/6
could we designate larvae as true
veligers because a shell and a bilobed
velum could be clearly seen. In this stage
veligers were very active inside the cap-
sules. Duration of the embryonic period
from egg to gastrula of all species is pre-
sented in Figure 3. The hatching stage
occurred between days 7 and 8 after
oviposition for planktotrophic species.
The general pattern of cleavage,
gastrulation and early embryogenesis of
all species examined is typical of that
described for other Opisthobranch gas-
tropods (GOHAR AND SOLIMAN,
1967a,b,c). The main embryonic devel-
opment stages and timings are pre-
sented in Table II. Most planktotrophic
species of Hypselodoris studied present a
veliger with a size within the range of
139.5 um to 161.5 qm. Exception is made
for Hypselodoris picta webbi veliger which
reaches 219.2 um in length at hatching
= E a
z 3 2 pa
A
E a TE
= Ss E 3 =
o a
= E E 3 3
17h 1d:14h 2d:19h 5d:20h 7d:18h
20h 1d:18h 30:13h 6d:4h 8d:1h
A A
25h 1d: 21h 3d;18h 6d; 6h 8d; 6h
20h 1d:14h 24:19 6d:lh 74:17h
168h 9d 11d; 6h —— 28d
time. Juveniles of Hypselodoris villafranca
are dorid-like in shape. They measure
515+23 um in length at hatching and
present a translucent mantle with bright
yellow random spots. A structural spic-
ular-like network can be seen in the
mantle tissue. This network is main-
tained in adults of many dorids but is
lost in most chromodorids. No eyes or
rhinophores buds are visible (Fig. 4).
During the first 10-12h post-hatching
juveniles crawl on top of the gelatinous
matrix of the spawn, sometimes
seeming to graze on it.
In Table !II we summarise the avail-
able information on the developmental
Characteristics of the studied species.
DISCUSSION
In this study several aspects of the
spawn and development of six species
of the genus Hypselodoris Stimpson, 1855
are described.
The type of egg mass presented by
H. villafranca is quite remarkable, since it
is to our knowledge the first observation
of direct development among chro-
modorids.
67
Iberus, 28 (2), 2010
0 100 200
[_] 1st Cleavage
[Al 2nd Cleavage
a Morula
300 400 500 600
Hours
ES 3rd Cleavage Blastula
ES] Gastrula
Figure 3. Embryonic period duration from egg to gastrula in all species studied of Hypselodoris.
Figura 3. Duración del desarrollo embrionario hasta el estado de gástrula.
Concerning egg size, the mean
diameter in H. bilineata, H. cantabrica, H.
fontandraui and H. tricolor is below 100
um, within the range reported for most
Nudibranchia species (HADFIELD AND
MILLER, 1987) and consistent with the
planktotrophy exhibited. Egg and
capsule sizes are classically considered
to be good predictors of development
type (HADFIELD AND SWITZER-DUNLAP,
1984) and used for comparative pur-
poses (HADFIELD AND MILLER, 1987). In
the case of the Atlantic Hypselodoris
picta, however, this extrapolation
clearly predicts direct development, as
in H. villafranca, but fails to predict
pelagic-lecithotrophy which should be
the case of H. picta webbi if one follows
HADFIELD AND SWITZER-DUNLAP's
(1984) predictions. The same situation
was reported by THOMPSON (1967) for
Archidoris pseudoargus, a planktotrophic
developer whose eggs are 170 um in
diameter. A free-swimming, plank-
totrophic veliger can emerge from eggs
of very different sizes, from 73 um in H.
bilineata (average adult length 30mm),
68
to 171 ym in H. picta webbi (average
adult length 100mm). The latter is the
largest planktotrophic egg size reported
so far among nudibranchs (see TODD,
LAMBERT AND bDAvIEs, 2001 for a
review). Clearly the amount of energy
packed into each ovum is very differ-
ent. Nevertheless, survivorship and
time to competence in these larvae
remains unknown. The difference in
hatching time between species with
planktotrophic larvae and the one with
direct development is certainly due to
developmental constraints. Even so, the
total egg-to-juvenile period is generally
longer and variable in the plank-
totrophic strategy since it is dependent
of an external source of energy to
undergo metamorphosis (ToDD, 1983;
HAVENHAND, 1993).
One of the reasons for supporting
egg size with capsule size data, in order
to have a more accurate development
extrapolation (CLARK AND JENSEN, 1981;
HADFIELD AND MILLER, 1987) is the fact
that there are species with lecithotrophic
or even direct development although
COELHO AND CALADO: Spawn and early development of NE Atlantic Hypselodoris
Figure 4. Newly hatched juvenile of H. villafranca.
Figura 4. Juvenil recién eclosionado de H. villafranca.
having small eggs. This is common
among Sacoglossa species as stated by
JENSEN (2001). The situation can be
explained based on the presence of
albumen, an intracapsular substance
rich in proteins and very common in
Opisthobranchia spawns (CLARK AND
JENSEN, 1981) and the existence of extra-
capsular yolk in some species, which
gives additional nutritional support for
embryos, larvae and juveniles (MARIN
AND Ros, 1993).
All studied species show a holoblas-
tic and spiral cleavage, typical of the
Gastropoda group (BIGGELAAR AND
HASZPRUNAR, 1996). With the exception
of H. villafranca with its slower direct
development, all species reach morula
stage 12-14h after oviposition and gas-
trula stage before the 48h mark. Both
planktotrophic and direct development
species gastrulate by emboly, as
described for Dendrodoris and Chro-
modoris by GOHAR AND SOLIMAN
(1967a,b) and for Platydoris by SOLIMAN,
(1978).
The development from gastrula
stage to veliger, with all typical struc-
tures present lasts between 102-107h.
It is obvious that Opisthobranch
life-cycle and developmental strategies
are inextricably linked to adult food
specificity. Species that feed on tran-
sient food organisms are usually small
and present a short life cycle, with a
very rapid embryonic development. On
the other hand, species, like the
Hypseloris here presented, that depend
on large long-living colonies such as
sponges, are often bigger in size and
have longer life cycles with slower
embryonic development (RUDMAN AND
WILLAN, 1998).
Although some developmental
timetables have been reported for a
number of opisthobranch species, it is
often difficult to use them to make com-
parisons due to uncontrolled husbandry
conditions or severe differences in water
culture temperature, which is known to
be one of the key factors affecting
embryonic development.
69
Iberus, 28 (2), 2010
Table III. Summary of developmental characteristics of Atlantic species of the genus Aypselodoris
from available literature and present study.
SPECIES Type of egg mass Egg mass color
H. bilineata 1 whorl spiral ribbon White
Spiral ribbon White
3 whorls ribbon Red-orange
2 Whorls spiral ribbon White
2-2,5 Whorls Spiral ribbon White
2 Whorls spiral ribbon White
H. cantabrica 4 whorls spiral ribbon White
Spiral ribbon White
Spiral ribbon White
4 whorls spiral ribbon White
H. fontandravi Spiral ribbon White
Spiral ribbon White
Spiral ribbon White
2 Whorls spiral ribbon White
H. picta webbi Waved spiral ribbon Red-orange
Smoothly waved spiral ribbon Orange
5 Whorls waved spiral ribbon
4 Whorls waved spiral ribbon Pink-orange
H. tricolor 3 whorls spiral ribbon White
Spiral ribbon White
2.5 Whorls Spiral ribbon White
2 Whorls spiral ribbon White
H. villafranca 2 Whorls spiral ribbon Orange
Spiral ribbon Orange
1 whorl spiral ribbon Orange
The studies on development pre-
sented by MARTÍNEZ-PITA, SÁNCHEZ-
ESPANÑA AND GARCÍA (2006) on species
of Polycera, conducted at 19C, report
similar embryonic stage timings to those
presented for planktotrophic species of
Hypselodoris in the current study.
YONOW (1996) cultured Acteon tornatilis
at 12"C water temperature and noted
that the 4-cell stage was reached about
24h after oviposition and the gastrula
stage within 4.9-6d. Although there are
no significant differences in develop-
ment pattern between compared
species, these last data report a much
slower embryonic development than
our study, which is probably due to the
6”C difference in water temperature.
All Hypselodoris planktotrophic species
exhibit a similar embryonic growth
7O
Egg mass width (mm) No. of specimens Type of capsule
3
5 l
4
3 / Oval
8 Spherical
l Oval
]
10 Oval
|
- 10
6
10 1
2 y .
- 3 Spherical
3 5 -
2.5mm - -
- 2 Oval or spherical
Spherical
pattern and despite differences in egg size
no differences are registered for hatching
times. Hypselodoris picta webbi presents the
biggest veliger (219.2+8.3 yum) but this size
discrepancy with other planktotrophic
species seems to be more related to adult
size (approximately 100mm length) than
to any developmental pattern. Neverthe-
less, survivorship and time to competence
in these larvae remains unknown.
When hatching, morphological
resemblance of Hypselodoris villafranca
crawling juveniles to adult specimens is
very limited and no rhinophores are
visible. The crawling behaviour that the
juvenile exhibits for 10-12h on top of the
gelatinous matrix of the spawn, seeming
to graze on it, leads us to think that
matrix nutrients are not only important
during embryonic development but
COELHO AND CALADO: Spawn and early development of NE Atlantic Aypselodoris
Tabla III. Resumen de las principales aspectos del desarrollo de las especies atlánticas del género Hypse-
lodoris obtenidas a partir de la bibliografía y del presente estudio.
Capsule diameter (1m) No. ofeggs per copsule Egg diameter (t1m) Embryonic period in days SOURCE
100-120 - 79-109 Ortea et al (1996)
110-120 l - Garcia Gómez (2002)
E 175-208 - Bouchet and Ortea (1980)
120 l 11 (18-20%) Gantes (1962)
158(=+3,5)| l 85-100 9 (21%) Sánchez-Tocino ef al (2007)
100-133 l 67-100 1.1520:25 Current Study
. - 95-125 1 (22%) Ortea ef al (1996)
90-140 l - - Garcia Goméz (2002)
95-125 l 80-85 Sánchez-Tocino ef al (2007)
117-144 l 75-120 8.25+0.35 Current Study
150-180 - 110-120 - Ortea ef al. (1996)
150-180 1 - - Garcia-Gómez (2002)
145-180 1 110 13 (18%) Sánchez-Tocino ef al. (2007)
95-233 1 80-100 7.50+0.14 Current Study
- - 175-208 - Ortea et al (1996)
160-190 l - Garcia-Gómez (2002)
170x200 12 130-135 - Sánchez-Tocino ef al. (2007)
240-453 1-2 141-210 8.04+0.13 Current Study
90-120 - 85-100 13 (20-22%) Ortea et al. (1996)
90-120 l - - Garcia-Gómez (2002)
170x200 1-2 130-135 - Sánchez-Tocino ef al. (2007)
85-181 l 71-90 IAEA Current Study
300-400 - Bit smaller than capsules - Ortea ef al. (1996)
320-360 l - - Garcia-Gómez (2002)
300-599 | 173-430 28.00+0.82 Current Study
serve as first food for juveniles after ACKNOWLEDGMENTS
hatching (GIBSON AND CHIA, 1991).
Although some work is still required
to understand some of the differences
here recognized in development pat-
terns between these species, the data
presented in this work with a systema-
tised character and controlled hus-
bandry conditions of specimens, will
certainly be useful regarding potential
taxonomic or phylogenetic discussions.
BIBLIOGRAPHY
BIGGELAAR J. M. AND HASZPRUNAR G. 1996.
Cleavage patterns and mesentoblast forma-
tion in the Gastropoda: An evolutionary per-
spective. Evolution, 50 (4): 1520-1540
This work was carried out under a
research project funded by Prémio
Milénio Sagres/Expresso 2002. R.C.
holds a grant from the Fundacáo para a
Ciéncia e Tecnologia, Portugal (BDE
15577/2005). António Monteiro, and
Manuel Malaquias, read an early
version of the manuscript and helped to
improve it.
BONAR D. B. 1978. Morphogenesis at meta-
morphosis in opisthobranch molluscs. In
Chia F.S. and Rice M.E. (Eds.): Settlement and
metamorphosis of marine invertebrate larvae. El-
sevier North-Holland, New York: 177-196.
71
Iberus, 28 (2), 2010
CERVERA J.L., CALADO G., GAVAIA C.,
MALAQUIAS M.A.E., TEMPLADO J., BALLES-
TEROS M., GARCÍA-GÓMEZ J.C. AND MEGINA
C. 2006. An annotated and updated check-
list of the opisthobranchs (Mollusca: Gas-
tropoda) from Spain and Portugal (including
islands and archipelagos). Boletin del Instituto
Español de Oceanografía, 20 (1-4): 5-111.
CLARK K.B. AND JENSEN K.R. 1981. A compar-
ison of egg size, capsule size, and develop-
ment patterns in the order Ascoglossa
(Sacoglossa) (Mollusca: Opisthobranchia).
International Journal of Invertebrate Reproduc-
tion 3: 57-68
GIBSON G.D. AND CHIA F. 1991. Contrasting
reproductive modes in two sympatric
species of Haminaea (Opisthobranchia:
Cephalaspidea). Journal of Molluscan Stud-
1es, 57: 49-60.
GOHAR H.A.F. AND SOLIMAN G.N. 1967a. The
biology and development of Dendrodoris (Do-
riopsis) fumata (Rúpp. and Leuck.) (Gas-
tropoda, Nudibranchia). Publications of the
Marine Biological Station, Al-Ghardaga, Egypt,
14: 31-54.
GOHAR H.A.F. AND SOLIMAN G.N. 1967b. The
biology and development of Chromodoris in-
ornata Pease (Gastropoda, Nudibranchia).
Publications of the Marine Biological Station,
Al-Ghardaga, Egypt, 14: 78-95.
GOHAR H.A.F. AND SOLIMAN G.N. 1967c. The
biology and development of Chromodoris tinc-
toria (Rúpp. and Leuck.) (with reference to the
taxonomic value of spawning characters).
Publications of the Marine Biological Station,
Al-Ghardaga, Egypt, 14: 95-108.
HADFIELD M.G. AND MILLER S.E. 1987. On de-
velopmental patterns of Opisthobranchs.
American Malacological Bulletin, 5 (2): 197-214.
HADFIELD M. AND SWITZER-DUNLAP M. 1984.
Opisthobranchs. In Wilbur K. (Ed.): The Mo-
llusca, 7: Reproduction. Academic Press, New
York: 209-350.
HAVENHAND J. 1993. Egg to juvenile period,
generation time, and the evolution of larval
type in marine invertebrates. Marine Ecology
Progress Series, 97: 247-260.
JENSEN K.R. 2001. Review of reproduction in the
Sacoglossa (Mollusca, Opisthobranchia). Bol-
lettino Malacologico, 37, 81-98
LANCASTER S.M. 1983. The biology and repro-
ductive ecology of Philine aperta (Opistho-
branchia: Bullomorpha) in Oxwich Bay.
Journal of Molluscan Studies, Suppl 12A: 82-
88
MARIN A. AND ROS J.D. 1993. Ultrastructural
ecological aspects of the development of
chloroplast retention in the sacoglossan Elysia
timida. Journal of Molluscan Studies, 59: 95-
104.
72
MARTÍNEZ-PITA I.; SÁNCHEZ-ESPANÑA A.Í. AND
GARCÍA FJ. 2006. Some aspects of the repro-
ductive biology of two Atlantic species of
Polycera (Mollusca: Opisthobranchia) Jour-
nal of the Marine Biological Association of the
U.K. 86 (2): 391-399.
MCDONALD, G. AND NYBAKKEN J. 1997. A List
of the Worldwide Food Habits of Nudi-
branchs. http: / /people.ucsc.edu/=mecduck/
nudifood.htm (viewed October 2005)
ORTEA J., VALDÉS A. AND GARCÍA-GÓMEZ J.C.
1996. Revisión de las especies atlánticas de
la familia Chromodorididae (Mollusca: Nudi-
branchia) de grupo cromático azul. Avicen-
nia, Suppl. 1: 1-165.
RASMUSSEN E. 1944. Faunistic and biológical
notes on marine invertebrates. Videnskabelige
Meddelelserfra Dansk Naturhistorisk Forening,
107: 207-33.
RUDMAN, W.B. 1979. The ecology and anatomy
of a new species of aeolid opisthobranch
mollusc: a predator of the reef-forming coral
Porites. Zoological Journal of the Linnean Soci-
ety, 65: 339-359.
RUDMAN W.B. AND WILLAN R.C. 1998. Opist-
hobranchia. In Beesley P.L., Ross G.J.B. and
Wells, A. (Eds.): Mollusca: The Southern syn-
thesis. Fauna of Australia. CSIRO, Melbourne,
pp. 915-1035.
SOLIMAN G.N. 1978. The redescription, repro-
duction and development of the dorid nudi-
branch Platydoris Scabra (Cuvier) from the
Northwestern Red Sea, Journal of Molluscan
Studies, 44 (2): 151-165.
STRATHMANN R.R. 1978. The evolution and loss
of feeding larval stages of marine inverte-
brates. Evolution, 32: 894-906.
THOMPSON T.E. 1967. Direct development in
the nudibranch Cadlina laevis, with a discus-
sion of developmental processes in Opistho-
branchia. Journal of Marine Biological Associ-
ation of the United Kingdom, 47: 1-22.
THOMPSON T.E. 1976. Biology of Opistobranch
molluscs 1. London: The Ray Society
Topp C.D. 1983. Reproductive and trophic ecol-
Ogy of nudibranch molluscs. In Russel-
Hunter W.D. (Ed.): The Mollusca. 6: Ecology.
Academic Press, New York, 6: 225-259.
Topp C.D., LAMBERT W.J. AND DAVIES J. 2001.
Some perspectives on the biology and ecol-
ogy of nudibranch molluscs: generalisations
and variations on the theme that prove the
rule. Bollettino Malacologico, 37: 105-120.
YONOW N. 1996. Gametogenesis, egg produc-
tion and development'in Acteon tornatilis
(Opisthobranchia: Cephalaspidea). Malaco-
logical Review, Supplement 6: 31-52.
WILSON N. 2002. Egg masses of chromodorid
nudibranchs (Mollusca: Gastropoda: Opistho-
branchia). Malacología, 44 (2): 289-305.
ERRATA en Rolán y Fernández-Garcés (Iberus, 28 (1)
p. 84-86) sobre R. cancellina spec. nov.
Sustituir el primer párrafo de "Remarks" por el siguiente:
Remarks: The holotype is a shell in good conditions and good protoconch (Fig. 3A)
with 5.7 mm; one paratype is a shell with 8.5 mm (ZMB 115039) and labelled as Ris-
soina cancellata Phil. v. pulchra C. B. Adams, Jamaica, coll. Paetel (Fig. 3B).
pe
1
O 1
A es
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Doris nigricans Otto, 1823, Nov. Act. Ac. Caes. Leop.-Car., 10: 275.
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(Ed.): Prosobranch Phylogeny. Malacological Review, supp!. 4: 129-166.
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INSTRUCTIONS TO AUTHORS
* Iberus publishes research papers, notes and monographs devoted to the various aspects of Malacology.
Papers are manuscripts of more than 5 typed pages, including figures and tables. Notes are shorter papers.
Monographs should exceed 50 pages of the final periodical, and may be published as Supplements. Authors
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e The authors must include a list of at least 4 possible referees; the Editor can choose any others if appropriate.
e Papers should conform the following layout:
First page. This must include a concise but informative title, with mention of family of higher taxon when
appropriate, and its Spanish translation. It will be followed by all authors” names and surnames, their full
address(es), an abstract (and its Spanish translation) not exceeding 200 words which summarizes not only con-
tents but results and conclusions.
Following pages. These should content the rest of the paper, divided into sections under short headings. When-
ever possible the text should be arranged as follows: Introduction, Material and methods, Results, Discussion,
Conclusions, Acknowledgements and References. Unusual abbreviations used in the text must be grouped in
one alphabetic sequence after the Material and methods section.
e Notes should follow the same layout, without the abstract.
e Footnotes and cross-references must be avoided. The International Codes of Zoological and Botanical
Nomenclature must be strictly followed. The first mention in the text of any taxon must be followed by its
authority including the year. In systematic papers, when synonyms of a taxon are given, they must be cited IN
FULL, including the periodical, in an abbreviate form, where they were described, and the type localities in
square brackets when known. Follow this example (please note the punctuation):
Dendrodoris limbata (Cuvier, 1804)
Synonyms
Doris limbata Cuvier, 1804, Ann. Mus. Hist. Nat. Paris, 4 (24): 468-469 [Type locality: Marseille].
Doris nigricans Otto, 1823, Nov. Act. Ac. Caes. Leop.-Car., 10: 275.
These references must not be included in the Bibliography list, except if referred to elsewhere in the text. If a
full list of references of the taxon is to be given immediately below it, the same layout should be followed (also
excluding from the Bibliography list those which are not cited elsewhere).
Only Latin words and names of genera and species should be underlined once or be given in italics. No word
must be written in UPPER CASE LETTERS. SI units are to be used, together with their appropriate symbols. In
Spanish manuscripts, decimal numbers must be separated with a comma (,), NEVER with a point (.) or upper
comma (*).
e References in the text should be written in small letters or Small capitals: Fretter and Graham (1962) or
FRETTER AND GRAHAM (1962). The first mention in the text of a paper with more than two authors must
include all of them [Smith, Jones and Brown (1970)], thereafter use et al. [Smith et al. (1970)]. If an author has
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The references in the reference list should be in alphabetical order and include all the publications cited in the
text but only these. ALL the authors of a paper must be included. These should be written in small letters or
Small capitals. The references need not be cited when the author and date are given only as authority for a tax-
onomic name. Titles of periodicals must be given IN FULL, not abbreviated. For books, give the title, name of
publisher, place of publication, indication of edition if not the first and total number of pages. Keep references
to doctoral theses or any other unpublished documents to an absolute minimum. See the following examples
(please note the punctuation):
Fretter V. and Graham A. 1962. British Prosobranch Molluscs. Ray Society, London, 765 pp.
Ponder W.F. 1988. The Truncatelloidean (= Rissoacean) radiation - a preliminary phylogeny. In Ponder W.F.
(Ed.): Prosobranch Phylogeny. Malacological Review, suppl. 4: 129-166.
Ros J. 1976. Catálogo provisional de los Opistobranquios (Gastropoda: Euthyneura) de las costas ibéricas. Mis-
celánea Zoológica, 3 (5): 21-51.
e Figures must be original and provided preferably in electronic format and adjusted to page format and
column size. These should be one column (57 mm) or two columns (121 mm) wide and up 196 mm high, or be
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Iberus 28 (2) 2010
HORRO J., GORI S. AND ROLÁN E. Haedropleura ryalli, a new species from Sáo Tomé Island (Gas-
tropoda, Turridae)
Haedropleura ryalli, nueva especie de la isla de Sáo Tomé (Gastropoda, Turridae) ..... 1-4
BENOMAR S., BELHSEN O.K., MATHIEU M. AND MOUKRIM A. Ultrastructural study of oogenesis
in the African mussel, Perna perna (Bivalvia: Mytilidae)
Estudio ultraestructural de la ovogénesis en el mejillón africano, Perna perna (Bivalvia:
ANT AO o Hp ON E os EEE UE A ed RARA EN ONIS 5-21
GARCÍA-ÁLVAREZ O., ZAMARRO M2? AND URGORRI V. New species of Mollusca Solenogastres
from the Bellingshausen Sea and the Antarctic Peninsula (Bentart-2006 Expedition)
Nuevas especies de Moluscos Solenogastres del Mar de Bellingshausen y Península Antártica
(PAE O cto 2 DUO) LN e o ALI Ae E ae O. 23-38
DE OLIVEIRA A. Fauna Malacológica da cidade de Coimbra (Beira Litoral). Moluscos “urbanos” de
Portugal. 1
Malacological Fauna from Coimbra (Beira Litoral). Portuguese “urban” Molluscs. 1... 39-50
BOUCHET P., GOFAS S. AND WARÉN A. Notes on Mediterranean Dizoniopsis (Gastropoda: Cerit-
hiopsidae), with the description of two new species
Apuntes sobre los Dizoniopsis (Gastropoda: Cerithiopsidae) del Mediterráneo, con la descrip-
INE NOS ES DECIS MUBUIS Aa DAR aa LAO SON ed A 51-62
COELHO R. AND CALADO G. Spawn and early development of NE Atlantic species of Hypselodoris
(Gastropoda: Opisthobranchia)
Puesta y desarrollo de especies del género Hypselodoris del Atlántico nororiental (Gastropoda:
TEO EN aca Ue AN a ADO laa ala CON 63-72
ISSN 0212-3010
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“Iberus
Vol. 29 (1)
REVISTA DE LA
SOCIEDAD ESPAÑOLA
DE MALACOLOGÍA
Oviedo, junio 2011
Iberus
Revista de la
SOCIEDAD ESPAÑOLA DE MALACOLOGÍA
Comité DE REDACCIÓN (BOARD OF EDITORS)
EDITOR DE PUBLICACIONES (EDITOR-IN=-CHIEF)
Serge Gofas | Universidad de Málaga, España
DIRECTOR DE REDACCIÓN (EXECUTIVE EDITOR)
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Benjamín Gómez Moliner Universidad del País Vasco, Vitoria, España
Angel Antonio Luque del Villar Universidad Autónoma de Madrid, Madrid, España
Emilio Rolán Mosquera Universidad de Vigo, Vigo, España
José Templado González Museo Nacional de Ciencias Naturales, CSIC, Madrid, España
Jesús S. Troncoso Universidad de Vigo, Vigo, España
Comité EDITORIAL (BOARD OF REVIEWERS)
Kepa Altonaga Sustacha Universidad del País Vasco, Bilbao, España
Eduardo Angulo Pinedo Universidad del Poís Vasco, Bilbao, España
Rafael Araujo Armero Museo Nacional de Ciencias Naturales, Madrid, España
Thierry Bockeljau Institut Royal des Sciences Naturelles de Belgique, Bruselas, Bélgica
Ridiger Bieler The Field Museum, Chicago, Estados Unidos
Sigurd v. Boletzky Laboratoire Arago, Banyuls-sur-Mer, Francia
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Karl Edlinger Noturhistorisches Museum Wien, Viena, Austria
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Edmund Gittenberger Notional Notuurhistorisch Museum, Leiden, Holanda
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Gerhard Hoszprunar -Zoologische Staatssammlung Múnchen, Múnchen, Alemania
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María Yolanda Manga González Estación Agrícola Experimental, CSIC, León, España
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Ron K. 0'Dor Dalhousie University, Halifax, Canada
Tokashi Okutani Nihon University, Fujisawa City, Japón
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Pablo E. Penchaszadeh Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”, Buenos Aires, Argentina
Winston F. Ponder Australian Museum, Sydney, Australia
Carlos Enrique Prieto Sierra Universidad del País Vasco, Bilbao, España
Me de los Ángeles Romos Sánchez Museo Nacional de Ciencias Naturales, ESIC, Madrid, España
Francisco Javier Rocha Valdés Instituto de Investigaciones Marinas, CSIC, Vigo, España
Paul G. Rodhouse British Antarctic Survey, Cambridge, Reino Unido
Joandoménec Ros ¡ Aragones Universidad de Barcelona, Barcelona, España
María Carmen Solas Casanovas Universidad de Málaga, Málaga, España
Gerhard Steiner Institut fir Zoologie der Universitút Wien, Viena, Austria
Victoriano Urgorri Carrasco Universidad de Santiago de Compostela, Santiago de Compostela, España
Anders Warén Swedish Museum of Natural History, Estocolmo, Suecia
PORTADA DE Jlberus
Iberus gualtieranus (Linnaeus, 1758), una especie emblemática de la península Ibérica, que da
nombre a la revista. Dibujo realizado por José Luis González Rebollar “Toza”.
NT HSON/g py
AUG 042011
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REVISTA DE LA
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Iberus publica trabajos que traten sobre cualquier aspecto relacionado con la Malacología. Se
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Los resumenes de los artículos editados en esta revista se publican en Aquatic Science
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Contents list published in Aquatic Science and Fisheries Abstracts and Zoological Records,
BIOSIS.
Dep. Leg. B-43072-81
ISSN 0212-3010
Diseño y maquetación: Gonzalo Rodríguez
Impresión: LOREDO, S. L. - Gijón
O Sociedad Española de Malacología ——__—_—_——— Iberus, 29 (1): 1-7, 2011
Cima apicisbelli Rolán, 2003 (Gastropoda: Cimidae): nuovo
immigrante in Mediterraneo o specie autoctona?
Cima apicisbelli Rolán, 2003 (Gastropoda: Cimidae): ¿nuevo inmi-
grante en el Mediterraneo o especie autoctona?
Danilo SCUDERI* e Francesco CRISCIONE**
Recibido el 11-11-2010. Aceptado el 21-1-2011
ABSTRACT
The recovery of several living specimens of Cima apicisbelli Rolán, 2003 ¡is reported in
the coast of Acitrezza (lonian Sea, E Sicily) within a marine protected area. This is the first
citation in Italian waters, and the second ever for the Mediterranean, but of primary impor-
tance as based on abundant material found alive. This finding opened a taxonomic issue
regarding its actual validity as a distinct species. The resemblance of their shells with that
of the autochthonous C. cylindrica [Jeffreys, 1856), re-proposes an old question regarding
the alien species entering the Mediterranean via Gibraltar strait: are they really aliens or
are they ¡just rare and/or overlooked native species to be better understood taxonomi-
cally? Based on observations on fresh material of C. apicisbelli and comparison with
shells of the native congener we here support the validity of both taxa, therefore consider-
ing our record a real case of new finding of a species of Atlantic origin.
RIASSUNTO
Si segnala il ritrovamento di 26 esemplari viventi della specie alloctona Cima apicisbelli
Rolán, 2003 nelle acque di Acitrezza (Mar lonio, Sicilia Orientale), all'interno di un'area
marina protetta: si tratta del primo rinvenimento per le acque italiane, e del secondo in
assoluto per il Mediterraneo, ma di primaria importanza poiché quello presente si basa su
abbondante materiale rinvenuto vivente. Insieme ai dettagli del ritrovamento, viene di
seguito riportata una discussione circa la reale consistenza tassonomica di questa specie:
la congenere autoctona C. cylindrica [Jeffreys, 1856) risulta avere una conchiglia morfolo-
gicamente molto simile. Viene esplorata la possibilitá che le due specie possano essere
solo sinonimi: dal confronto tra individui di C. cylindrica, rispondenti all'attuale concetto
della specie, e C. apicisbelli, rinvenute ad Acitrezza, sono emerse differenze a supporto
della distinzione delle due specie che conducono a riferire ¡l presente rinvenimento come
una nuovo reperimento in Mediterraneo di una specie aliena di provenienza atlantica.
RESUMEN
Se señala la recolección de 26 ejemplares vivos de la especie alóctona Cima apicisbelli
Rolán, 2003 en aguas de Acitrezza (mar Jónico, este de Sicilia), dentro de un área
marina protegida. Este es | primera cita de la especie para aguas italianas , y la segunda
para el Mediterráneo, pero de suma importancia por tratarse de un abundante material
* Dipartimento di Biologia Animale, Laboratorio di Biologia Marina, Universitá di Catania, Via Androne, 81 -
95124 Catania, Italy. E-mail: danscuCtin.it
** Australian Museum, 6 College Street Sydney NSW - 2010 Sydney, Australia. E-mail: cicciocriscio-
neOgmail.com
Iberus, 29 (1), 2011
recolectado vivo. En esta ocasión comparamos esta especie con el congénere mediterrá-
neo C. cylindrica (Jeffreys, 1856), que tiene una concha muy similar morfológicamente y
podría ser sinónimo. Comparando ejemplares de C. cylindrica correspondiendo al con-
cepto actual de la especie, y los C. apicisbelli de Acitrezza, las diferencias respaldan la
distinción de las dos especies, lo cuál nos lleva a considerar este descubrimiento como
una nueva ocurrencia en el Mediterráneo de una especie exótica de origen atlántico.
INTRODUZIONE
Durante questi ultimi dieci anni,
l'ingresso in Mediterraneo di specie di
molluschi non autoctone e apparso
essere un fenomeno particolarmente fre-
quente ed in crescita. Ció sia perché tale
fenomeno viene piú spesso rimarcato ed
enfatizzato in quanto ricollegabile al
fenomeno piú generale del cambia-
mento del clima su scala globale e della
tropicalizzazione piú in particolare, sia
anche perché la bibliografia e gli studi
prodotti relativamente alla malacofauna
mediterranea sono ormai estremamente
approfonditi, cosicché la individuazione
di nuove entita all'interno di questo
bacino risulta maggiormente facilitata.
Secondo GALIL (2008), la consistenza
del fenomeno di invasione del Mediter-
raneo puo essere spiegata come un
effetto della sinergia tra fattori antropici
(inquinamento, eutrofizzazione, de-
grado degli habitats, sovrapesca, mari-
coltura, cambiamento climatico e traf-
fico marittimo) e la peculiare storia geo-
fisica e climatica dell'area. Una delle
modalita con cui le specie aliene si
diffondono sembra essere la normale
dispersione larvale e ció e particolar-
mente vero per le specie cosiddette “les-
sepsiane”, che transitano attraverso il
canale di Suez per poi attestarsi lungo le
coste prossime ad esso, quelle levantine
o egiziane (OLIVERIO, 1995). In questo
caso, la diffusione segue una succes-
sione temporale e direzionale (“step-
ping stones”), che si rispecchia nelle
segnalazioni scientifiche. Ovviamente,
nulla esclude che meccanismi di media-
zione antropica possano essere in alcuni
casi prime responsabili del trasporto di
queste specie attraverso il canale o di
una loro secondaria diffusione in Medi-
terraneo. Rimorchiatori o chiatte ormeg-
glate per lungo tempo ad una estremita
per poi passare all'altro lato del canale
possono aver costituito un ottimo sub-
strato per specie aliene (Fox, 1926). Navi
che fanno la spola tra il bacino di
Levante e di Ponente possono essere un
veicolo di diffusione per specie sessili,
come nel caso di Brachidontes pharaonis
(Fischer, 1870) (DI GERONIMO, 1971) e
Pinctada radiata (Leach, 1814) (in
ZIBROWIUS, 1992). Per quest'ultima, anzi,
il veicolo di trasporto puo dipendere
anche da substrati naturali, come ad
esempio il carapace di rettili marini
(OLIVERIO, GEROSA E Cocco, 1993). Il
trasporto mediato da mezzi di naviga-
zione marittima e probabilmente la
maggiore causa di importazione di
specie aliene sensu stricto, cioe specie
introdottesi in Mediterraneo diretta-
mente dal luogo d'origine (OLIVERIO,
1995). Questo e particolarmente vero per
quei mezzi con ridotta velocita o per
quelle strutture che operano in condi-
zioni di frequente ancoraggio, come le
piattaforme di esplorazione dei fondali.
Dodici specie di Molluschi originari del-
l'Australia vennero per la prima volta
segnalate nel nostro mare in prossimitá
della piattaforma “Southern Cross” anco-
rata presso le coste israeliane (MIENIS,
2004). L'altra importante modalita con la
quale si realizza 1'”invasione aliena” e
certamente legata alla maricoltura, atti-
vita che e cresciuta esponenzialmente
nelle ultime due decadi. Da non trascu-
rare e, inoltre, l'introduzione che si rea-
lizza tramite le cosiddette ballast water, o
acque di zavorra, riversate dalle navi da
carico nelle localita di destinazione
assieme al loro contenuto in larve
(STREFTARIS, ZENETOS E PAPATHANAS-
SsIOU, 2005). L'introduzione intenzionale
SCUDERI E CRISCIONE: Czia apicisbellí, immigrante in Mediterraneo o specie autoctona?
dell'ostrica del Pacifico, Crassostrea gigas
(Thunberg, 1793), e della vongola filip-
pina Ruditapes philippinarum (Adams e
Reeve, 1850), oltre ad aver messo in
pericolo le popolazioni delle specie
autoctone corrispondenti (BODOY,
MAITRE-ALLAIN E RIVA, 1981; MADHIOUB
E ZAOUALI, 1988), fu seguita da quella
delle specie aliene ad esse associate
(RIBERA E BOUDOURESQUE, 1995).
Se da una parte la fauna proveniente
dall'area indopacifica risulta piuttosto
semplice da distinguere da quella autoc-
tona, quella, invece, di provenienza
atlantica offre maggiori problemi per
levidente somiglianza morfologica
delle sue specie con quelle del Mediter-
raneo. Inoltre, poiché la malacofauna
del Mediterraneo risulta composta pre-
valentemente da specie provenienti dal-
l'area lusitanica, risulta spesso difficile
stabilire se una specie sia entrata nel
nostro mare solo recentemente oppure
sia stata sempre presente e male inter-
pretata o non ben identificata o ancora
geograficamente distribuita con popola-
zioni circoscritte nello spazio o nel
tempo. Un'ulteriore complicazione
deriva, infatti, da quelle specie lusitani-
che che, tuttora presenti in Mediterra-
neo, potrebbero averlo colonizzato a piú
riprese nel tempo, come ad esempio
Panopea glycymeris (Born, 1778), per le
quali un'indagine approfondita deve
partire dallo studio delle conchiglie
fossili. Molte specie atlantiche, per
questo, sono state escluse dalla lista
delle specie alloctone della CIESM
(ZENETOS, GOFAS, RUSSO E TEMPLADO,
2004).
In questi ultimi anni in certe aree
della Sicilia orientale si sono susseguiti
numerosi rinvenimenti di specie aliene:
in particolare ad Acitrezza, piccolo vil-
laggio poco a nord di Catania, che vive
di pesca e della commercializzazione
del pesce, ospitando uno dei maggiori
mercati ittici siciliani, il fenomeno della
presenza di specie non autoctone si e
recentemente amplificato, portando a
peculiari segnalazioni (SCUDERI E RUSSO,
2003; 2005) e giustificando la realizza-
zione di specifici lavori di ricerca, solo
in parte conclusi (PANE, 2008).
Il recente rinvenimento nella stessa
localita di numerosi individui viventi
determinati come Cima apicisbelli Rolán,
2003 (Cimidae), ha offerto la possibilitá
di investigare meglio la tassonomia di
questa specie ed i rapporti tra malaco-
fauna atlantica e quella mediterranea.
Questa specie, descritta per le coste del
Senegal, e stata rinvenuta per la prima
volta in Mediterraneo nel 2007 lungo le
coste di Denia, Valencia, Spagna meri-
dionale, dove un'unica conchiglia vuota
e stata ritrovata in un detrito raccolto a
bassa profondita, in un fondale misto di
sabbia e roccia, con presenza della fane-
rogama Posidonia oceanica (L.) Delile,
1813 e di alghe fotofile (OLIVER
BALDOVI, 2007).
ll rinvenimento qui descritto costi-
tuisce il primo per le acque italiane e il
secondo in assoluto per il Mediterraneo.
Non e” da trascurare anche il fatto che
sia avvenuto all'interno dei confini di
un'area protetta.
La disponibilita” di abbondante
materiale vivente ha consentito un
esame approfondito, dal quale e emersa
una grande somiglianza di C. apicisbelli
con la congenerica autoctona C. cylin-
drica (Jeffreys, 1856). Tale rimarchevole
somiglianza non era stata discussa
all'atto della istituzione di C. apicisbell:.
Il presente lavoro affronta una breve
disamina tassonomica introduttiva sulle
due specie di Cima per arrivare ad una
soluzione logica circa il ritenere, e
quindi segnalare, la specie di recente
descrizione come alloctona.
MATERIALI E METODI
C. apicisbelli. Acitrezza (Catania, NE
Sicilia), Marzo 2006, profonditá -0,20/1
m su un substrato costituito in preva-
lenza da Caulerpa racemosa, 21 individui.
Altri 5 individui a nord di Acitrezza,
estate 2006, profondita -1/2 m, fotofilo
roccioso.
C. cylindrica. Ganzirri (Messina, NE
Sicilia), 1995, profonditá -0,20/1 m su
un substrato costituito in prevalenza da
Caulerpa taxifolia, 3 individui. Is Linosa
(Agrigento, Canale di Sicilia), 1995,
Iberus, 29 (1), 2011
profondita -25 m in detrito, 2 conchiglie.
Vendicari (Siracusa, SE Sicilia), 1994,
detrito spiaggiato, 2 conchiglie.
DISCUSSIONE
C. apicisbelli e caratterizzata da una
conchiglia minuta, fragile, con scultura
delicata (Figs. 1, 2). La caratteristica che
immediatamente la fa distinguere dalle
altre congeneri mediterranee, C. minima,
C. cylindrica, e la scultura della conchi-
glia, che non e liscia, ma presenta sottili
costicine assiali intersecate a linee spirali
a formare un reticolo; tale trama puo
ricordare la scultura delle varie specie di
Graphis presenti in Mediterraneo, dalle
quali si distingue agevolmente per l'apice
non liscio. Come gia evidenziato in lette-
ratura (vAN AARTSEN, 1981), la conchigjlia
di C. cylindrica risulta liscia, solcata da
deboli strie spirali solo negli ultimi giri:
anche se non riportato esplicitamente,
Vapice risulta pressoché liscio.
Sono stati posti a confronto gli indi-
vidui di C. apicisbelli rinvenuti nell'area
jonica sopra indicata e alcuni individui
di C. cylindrica conservati nella colle-
zione di uno degli autori (D.S.), che
confrontano perfettamente con la
descrizione di VAN AARTSEN (1981):
sono stati confrontati tra loro individui
di pari dimensioni. Dal confronto degli
individui delle due specie, riportati in
materiali e metodi e di cui si da
un'immagine in Figs. 1 e 4, si eviden-
ziano differenze morfologiche, sia a
carico della teleoconca che della proto-
conca. Infatti la conchiglia adulta di C.
apicisbelli, a paritá di dimensioni (circa 1
mm), rispetto a C. cylindrica, appare piú
inflata, con meno giri e piu arrotondati
con sutura piu netta; la scultura appare
molto marcata su tutta l'altezza di ogni
giro, compresi quelli apicali; inoltre la
bocca appare piú aperta ed ampia (si
veda il disegno schematico di Fig. 9).
Circa la protoconca, invece, in C. apici-
sbelli risulta ornata da scultura consi-
stente di linee assiali rade e spirali piú
marcate, che sul nucleo, piuttosto
grosso, divengono ortogonali a causa
dell'iperstrofia protoconcale (Figs. 3 e
7). In C. cylindrica, invece, la protoconca
appare liscia (Figs. 5 e 6), con solo
qualche linea d'accrescimento appena
rintracciabile: il nucleo e piú piccolo
(0,057 mm contro 0,071 mm di C. apici-
sbelli). Sul nucleo embrionale di
entrambe e visibile un cingolo apicale
(Figs. 6 e 7) che va poi a fondersi con la
sutura gia del primo giro di protoconca.
Le differenze morfologiche rilevate,
quindi, se da un lato potrebbero essere
viste come lievi e rientrare nell'ambito
della variabilita intraspecifica di C.
cylindrica, che del resto risulta tuttora
specie scarsamente rinvenuta ed affatto
investigata tassonomicamente, come gia
denunciato da VAN AARTSEN (1981), dal-
l'altro sono sufficienti a discriminare le
due entitá tassonomiche: esistono,
infatti, gruppi di specie (vedi nel genere
Turbonilla o Chrysallida ad esempio) che
sono divergenti in maniera piu lieve e
differiscono per un piú esiguo numero
di caratteri.
Per tale motivo C. apicisbelli e C.
cylindrica vengono qui considerate
specie diverse, sulla base di tali diffe-
renze morfologiche.
(Pagina destra) Figuras 1-3, 7, 9. Cima apicisbelli, Acitrezza (Catania, Sicilia); 1, 2: interi individui
(0,95 mm e 0,70 mm); 3: protoconca; 7: disegno della protoconca; 9: disegno schematico del
profilo conchiliare. Figuras 4, 5, 6, 8. Cima cylindrica, Ganzirri (Messina, Sicily); 4: intero indivi-
duo (1,05 mm); 5: protoconca; 6: disegno della protoconca; 8: disegno schematico del profilo con-
chiliare.
(Right page) Figuras 1-3, 7, 9. Cima apicisbelli, Acitrezza (Catania, Sicilia); 1, 2: individuos enteros
(0,95 mm y 0,70 mm); 3: protoconcha; 7: dibujo de la protoconcha; 9: dibujo esquemático del perfil
de la concha. Figuras 4, 5, 6, 8. Cima cylindrica, Ganzirri (Messina, Sicily); 4: individuo entero
(1,05 mm); 5: protoconcha; 6: dibujo de la protoconcha; 8: dibujo esquemático del perfil de la
concha.
SCUDERI E CRISCIONE: C2xa apicisbelle, immigrante in Mediterraneo o specie autoctona?
Iberus, 29 (1), 2011
Il dubbio che si possa trattare di
forme estreme della stessa specie,
comunque, permane, non prefiggendosi
il presente lavoro la loro investigazione
puramente tassonomica, ed apre una
finestra sulle polemiche che descrizioni
troppo affrettate, senza operare le
dovute comparazioni con materiale
tipico di specie molto vicine portano a
rilevare: un monito, quindi, va necessa-
riamente profuso affinche non si prose-
gua con superficialita alla descrizione di
nuovi taxa che, una volta istituiti, e
lavoro duro e improbo, poi, andare a
confrontare e revisionare.
Essendo quindi maggiormente pro-
pensi alla validita di C. apicisbelli, pos-
siamo qui dire che quello presente
risulta essere il primo rinvenimento per
le acque italiane e per il Mediterraneo
orientale, mentre risulta essere il
secondo in ordine cronologico per
l'intero Mediterraneo dopo quello di
Valencia (OLIVER BALDOV1, 2007).
Quest'ultimo, pero, e stato fondato su
un unico individuo rinvenuto morto, da
cui l'importanza assunta dalla presente
segnalazione di numerosi individui
viventi che accertano con sicurezza la
presenza in Mediterraneo di popola-
zioni di questa specie.
Rimangono ancora da stabilire le
modalita di ingresso nel Mare
Nostrum.
Rispetto a quello di Valencia, infatti,
il rinvenimento siciliano non sembra
rappresentare una tappa di colonizza-
zione naturale del nostro mare, sia per i
tempi con cui si e attuata (contempora-
nea rispetto al rinvenimento spagnolo),
sia anche per il numero di individui,
svariati e tutti viventi. Va inoltre osser-
vato che, come giá precedentemente
notato per altre specie alloctone, rinve-
nute nelle medesime condizioni
(Scuderi é£ Russo, 2003; 2005), risulta
piuttosto anomalo rinvenire in tempi
brevi ed al centro del Mediterraneo
popolazioni gia ben acclimatate altrove
assenti: ció risulta contrario alle dinami-
che di invasione naturale conosciute
(OLIVERIO, 1995) e sembra piuttosto con-
forme ad un modello d'invasione
mediato dall'uomo.
Inoltre, 1 diversi precedenti rinveni-
menti di specie aliene (SCUDERI E
Russo, 2003; 2005) nella stessa area,
nonché la presenza a ridosso di
quest'ultima di uno dei piú fiorenti
mercati ittici siciliani, ha suggerito
Videa che tali specie possano arrivare
all'interno delle cassette di pesce, non a
caso proveniente spesso dalle aree geo-
grafiche di origine delle stesse. In parti-
colare la presente specie e stata des-
critta solo molto recentemente, per il
Senegal: la richiesta di pescato “non
autoctono”, particolarmente del
Senegal, e cresciuta enormemente
durante questi ultimi anni (osserv.
pers.). Questo perviene ai nostri mercati
sempre meno in condizioni di congela-
mento e sempre piú in condizioni di
ottima freschezza, grazie anche ai
moderni ed efficienti canali di approv-
vigionamento (spedizioni aeree). Per
questo motivo, esiste a nostro parere la
possibilitá che individui di specie aliene
arrivino in buono stato di conserva-
zione e riescano poi a sopravvivere e
adattarsi, una volta accidentalmente re-
immesse in mare. Questo meccanismo
potrebbe spiegare anche altri fenomeni
di colonizzazione da parte delle specie
alloctone avvenuto in altre aree del
Mediterraneo. Ulteriori studi di compa-
razione tra il materiale biologico che
accompagna il pescato importato e
quello rinvenuto nelle indagini sul
campo, potrebbero avvalorare tale
ipotesi.
RINGRAZIAMENTI
Gli autori desiderano qui ringraziare
la prof.ssa Grazia Cantone del Dip. di
Biologia Animale dell'Universita di
Catania per l'appoggio e gli utili pareri
al riguardo. I ringraziamenti vanno
anche al Direttore (Dott. Emanuele
Mollica) e allo staff delll AMP “Isole
Ciclopi” per avere consentito e facilitato
il campionamento. Un ringraziamento
particolare va al prof. S. Gofas (UMA)
per le utili critiche al manoscritto e le
sempre opportune, puntuali e precise
disquisizioni scaturite.
SCUDERI E CRISCIONE: Czma apicisbells, imimigrante in Mediterraneo o specie autoctona?
BIBLIOGRAFIA
BODOY A., MAITRE-ALLAIN T. E RIVA A. 1981.
Croissance comparée de la palourde euro-
péenne Ruditapes decussatus et de la palourde
japonaise Ruditapes philippinarum dans un
écosysteme artificiel méditerranéen. Vie Ma-
rine, 2: 39-51.
DI GERONIMO 1. 1971. Prima segnalazione su-
lle coste italiane di Brachiodontes variabilis
Krauss. Bollettino delle Sedute dell" Accademia
Gioenia di Scienze Naturali in Catania, 10:
847-852.
Fox H.M. 1926. Zoological results of the Cam-
bridge expedition to the Suez Canal, 1924. 1.
General part. Transactions of the Zoological So-
ciety of London, 22: 1-64.
GaLIL B.S. 2008. Alien species in the Mediter-
ranean Sea - which, when, where, why? Hy-
drobiologia, 606: 105-116.
MADHIOUB M.N. E ZAOUALIJ. 1988. Captage de
l'huítre Crassostrea gigas dans le lac Ichkeul.
Bulletin de l'Institut National Scientifique et
Technique d'Océanographie et de Péche de Sa-
lammbó, 15: 47-60.
MIENIS H.K. 2004. New data concerning the
presence of Lessepsian and other Indo-Pacific
migrants among the molluscs in the Mediter-
ranean Sea with emphasize on the situation
in Israel. In B. Oztúirk €: A. Salman (Eds.): Pro-
ceedings 1st National Malacology Congress,
1-3 September 2004, Izmir. Turkish Journal of
Aquatic Life, 2 (2): 117-131.
OLIVER BALDOVIJ.D. 2007. Catalogo de los Gas-
terópodos testaceos marinos de la parte Sur
del Golfo de Valencia (España). Iberus, 25 (2):
29-61.
OLIVERIO M. 1995. The status of the living Me-
diterranean Strombus, or: what is a lessepsian
migrant. Notiziario CISMa, 16[1994]: 35-40.
OLIVERIO M., GEROSA G. E COCCO M. 1993. First
record of Pinctada radiata (Bivalvia, Pteriidae)
epibiont on the loggerhead sea turtle Caretta
caretta (Chelonia, Cheloniidae). Bollettino
Malacologico, 28 (5-12): 149-152.
PANE F. 2008. Malacofauna associata ad alghe fo-
tofile in un sito dell AMP “Is. Ciclopi” Acitrezza,
con particolare riferimento alle specie aliene. Tesi
di laurea, Universita di Catania, 54 pp.
RIBERA M.A. E BOUDOURESQUE C.F. 1995. In-
troduced marine plants with special reference
to macroalgae: mechanisms and impacts.
Progress in Phycological Research, 11: 187-268.
ROLÁN E. 2003. A new species of the genus
Cima (Gastropoda, Cimidae) from Senegal.
Novapex, 4 (1): 21-23.
SCUDERI D. E RUSSO G.F. 2003. Due nuovi Gas-
teropodi per le acque italiane: Melibe fim-
briata Alder €£ Hancock, 1864 e Tricolia tin-
gitana Gofas, 1982 (Mollusca: Gastropoda).
Atti XXXV Congr. SIBM, Biologia Marina Me-
diterranea, 12 (1): 618-621.
SCUDERI D. E RUSSO G.F. 2005. Prima segnala-
zione di Aplysia dactylomela Rang, 1828 e pro-
babile presenza di Syphonota geographica
(Adams e Reeve, 1850) (Gastropoda: Opist-
hobranchia: Anaspidea) per le acque del Me-
diterraneo. Atti XXXV Congr. SIBM, Biologia
Marina Mediterranea, 12 (1): 338-341.
STREFTARIS N., ZENETOS A. E PAPATHANASSIOU
E. 2005. Globalisation in marine ecosystems:
the story of non-indigenous marine species
across european seas. Oceanography and Ma-
rine Biology: An Annual Review. 43, 419-453.
VAN AARTSEN J.J. 1981. European marine mol-
lusca: notes on less well-known species II. The
genus Cima Chaster, 1896. Basteria, 45: 117-
TO;
ZENETOS A., GOFAS S., RUSSO G. E TEMPLADO J.
2004. CIESM Atlas of Exotic Species in the
Mediterranean, Vol.3. Molluscs, 376 p.
(http: / /www.ciesm.org / atlas / molluscsintro
html).
ZIBROWIUS H. 1992. Ongoing modifications of
the Mediterranean marine fauna and flora by
the establishment of exotic species. Mesogee,
51: 83-107.
A
TES
2
A
En
8
O Sociedad Española de Malacología
Iberus, 29 (1): 9-33, 2011
The family Tornidae (Gastropoda, Rissooidea) in the East
Atlantic, 2. Circulinae
La familia Tornidae (Gastropoda, Rissooidea) en el Atlántico orien-
tal, 2. Circulinae
Joan Daniel OLIVER* and Emilio ROLÁN**
Recibido el 23-1-2011. Aceptado el 17-11-2011
ABSTRACT
The species of the subfamily Circulininae from the East Atlantic belonging to the genus Cir-
culus are studied. There is a total of 8 species, of which 2 are previously undescribed. The
shell morphology is ilustrated for all the species with scanning electron micrographs which
show the protoconch and, in some cases, the microsculpture.
RESUMEN
Se estudian las especies del género Circulus de la subfamilia Circulininae del Atlántico
occidental. En total son 8 especies, de las cuales 2 son nuevas para la ciencia. De todas
ellas se ilustra la morfología de la concha con microscopía electrónica de barrido, inclu-
yendo la protoconcha y, en algunos casos, la microescultura.
INTRODUCTION
In their 1969 paper, ADAM AND
KNUDSEN (1969) studied the small
discoid species then scarcely known
from the West African coast. Subse-
quently, new species were described
(ROLÁN AND RUBIO, 1991, 1996; RUBIO
AND ROLÁN, 1991; ROLÁN, RUBIO AND
RYALL, 2000; ROLÁN AND RYALL, 2002).
ROLÁN AND RUBIO (2002) published a
paper on the species of the family
Tornidae Sacco 1986, from West Africa
reviewing and illustrating 39 species of
which 23 were new to science.
More recently, BOUCHET AND ROCROI
(2005) recorded the Gastropod taxa of
family level and listed as accepted the
family Tornidae with the following sub-
families: Torninae Sacco, 1884; Circuli-
nae Fretter and Graham, 1962; Teinos-
* c/Alcorisa 83, 12-C 28043, Madrid.
tomatinae Cossmanmn, 1917; Vitrinellinae
Bush, 1897.
In the above mentioned work on the
Tornidae from West Africa (ROLÁN AND
Rubro, 2002), the family had been
studied somewhat incompletely because
some of these subfamilies were not
included in Tornidae at that time but in
other taxonomic groups. The genus Cir-
culus Jeffreys, 1865, was treated by
FISCHER (1887: 824) as a subgenus of
Gibbula Risso, 1826; later DALL (1927)
placed it in synonymy with Lydiphnis
Melville, 1906 and THIELE (1929) as a
genus within Cyclostrematidae. Most of
them were placed in Archaeogas-
tropoda, and this remained so until
FRETTER (1956) researched the anatomy
of Circulus striatus (Philippi, 1836), type
** Museo de Historia Natural, Campus Universitario sur, 15782 Santiago de Compostela.
Iberus, 29 (1), 2011
species of Circulus, and noticed that the
radula of this species was taenioglos-
sate, not rhipidoglossate.
For this reason we have resumed the
study of the family Tornidae with the
intention of reviewing the subfamilies
not included in the previous study. In
the present work we begin with subfam-
ily Circulinae.
In the present work, as well as in the
previous ones, we intend to show a
complete iconography of the species
pointing out the differential morpholog-
ical characters which allow a clear
placement of each taxon.
MATERIAL AND METHODS
The material studied comes from
several collections made by the authors,
mainly in the Mediterranean, Morocco,
Mauritania, Senegal, Sáo Tomé and
Principe, Annobón and Angola. Other
material collected by other malacolo-
gists such as Francisco Fernandes,
Anselmo Peñas, Peter Ryall and José
María Hernández was also examined.
There is also some material from the
Muséum National d' Histoire Naturelle
of Paris (MNHN).
The material was collected mainly
from sediments from the intertidal level
to 8-10 m, while diving with snorkel
and SCUBA diving, and also by dredg-
ing from a boat. The material from the
MNHN was collected in several expedi-
tions to Guinea Conakry, Ivory Coast
RESULTS
and Congo with R/V “André Nizery”
and “Antea Benchaci I”, and in Angola
(coll. Serge Gofas) through manual
dredging.
The sediments were sieved and
examined under a binocular microscope
either by the collectors or the authors.
The numbering of the protoconch
whorls was made following the method
of VERDUIN (1976) in which the whorls
are counted following an initial nucleus.
Abbreviations
AMNH American Museum of Natural
History, New York
MNCN Museo Nacional de Ciencias
Naturales, Madrid
MNHN Muséum national d'Histoire
naturelle, Paris
MHNS Museo de Historia Natural, Uni-
versidad, Santiago de Compostela
NHMUK The Natural History Museum,
London
RBINS Royal Belgian Institute of
Natural Sciences, Bruxelles
ZMB Zoologisch Museum fir Natur-
kunde, Berlin
CAP collection of Anselmo Peñas,
Vilanova i la Geltrú
CDO collection of Daniel Oliver, Madrid
CPR collection of Peter Ryall, Maria
Rain
CJH collection of José María Hernández,
Gáldar
sp specimen with soft parts
s shell empty
f fragment
Family TORNIDAE
Subfamily CIRCULINAE Fretter and Graham, 1962
Genus Circulus Jeffreys, 1865
Circulus Jeffreys, 1865. Brit. Conch., vol 3: 315 [established as a subgenus of Trochus; type species:
Delphinula duminyi Requien, 1848 = Circulus striatus].
General characters of the shell: Proto-
conch: multispiral without any sculpture.
The transition to the teleoconch is diffi-
cult to observe, because the separation is
10
scarcely apparent. The beginning of the
teleoconch may be observed by looking
at the beginning of the spiral cords,
although sometimes these are eroded.
OLIVER AND ROLÁN: The family Tornidae in the East Atlantic, 2. Circulinae
Teleoconch: circular, flat, with a wide
deep umbilicus. Spiral ornamentation
formed by spiral cords. Some of them are
prominent, forming keels. They lack any
axial sculpture except for growth lines.
In order to describe more easily the
sculpture of the shell in view of its taxo-
nomic importance, we can represent the
apertural peristome as a hexagon (Fig.
1) (even though its shape is frequently
irregular, tending sometimes to be rec-
tangular or circular):
1: Adapical insertion of the external
lip with the shell
1-2: Subsutural cords
2: Cord /upper keel
2-3: Lateral upper cords
3: Cord /peripheral keel
3-4: Lateral lower cords
Dichotomous key of Circulus:
4: Cord /basal keel
4-5: Basal cords
5: periumbilical cord (change of
direction)
5-6: Umbilical cords
6: Abapical insertion of the external
lip in the shell
6-1: Callus: the callus is a simple pro-
longation of the inner part on the col-
umella.
It is important to mention that the
border of the external lip touches the
teleoconch a little above the peripheral
keel (3) while the internal border does it
a little above the basal keel (4).
Some species may lack some of these
cords-keels, or additional cord-keels
may appear. Also some intraspecific
variability can be observed.
1. - Shell with smooth spire. There are only umbilical cords ........ C. senegalensis
- Shell with spiral cords /or keels ....
DES hellwithoutkeels.. o
Snellmtkeels.
3 - Shell with evident spiral and basal cords
A a a as > C. congoensis
- Shell with lateral and basal areas without spiral cords or cords only appreciable
A o C. striatus
4 - Peripheral keel clearly more developed than the basal keel ............... 5
- Shell with the basal keel as developed or more than the peripheral keel ...... 6
5 - Shell with vitreous aspect, without basal keel and without subsutural
COMAS O UA o a
O Ea O C. pseudopraecedens
- Shell of white color with basal cord /keel less developed that the peripheral one
and with subsutural clear cords ....
A Rae: C. ryalli
6 - Shell lacking lower lateral cords with a basal keel more developed than the peri-
O e A A
- Lower lateral cords present ........
E e E C. stephani
7 - Peristome tending to be rectangular and having microsculpture under magnifi-
CALOR e ESO de
O O C. microsculpturatus
- Peristome subcircular, lower lateral cords, tending to form subperipheral
ES e o e Rd E IS EE
A o E C. smithi
Circulus striatus (Philippi, 1836) (Figs. 2A-G, 3A-G, 4A-G)
Valvata striata Philippi, 1836, p. 147, pl. IX, fig. 3A-C. [Type locality: Cefalú near Catania, Sicily,
Pleistocene]
Adeorbis tricarinatus Wood, 1848. Ann. Mag. Nat. Hist. 9: 530.
Delphinula duminyi Requien, 1848. Cat. Cog. Corse: 64 [Type locality: Ajaccio, Corsica]. .
11
Iberus, 29 (1), 2011
Delphinula triangulata Rayneval and Ponzi, 1854. Cat. Monte Mario: 18 [Type locality: Monte
Mario near Rome, Italy, Pleistocene]
Skenea striatula Weinkauff, 1862. J. Conch. 10: 343 [incorrect subsequent spelling of striata Philippi,
1836].
Circulus costulatus Locard, 1889. Bull. Soc. Mal. France, 6: 297. [Type locality: France: Brest, Morbi-
han and Vendée].
Circulus carinulatus Locard, 1889. Bull. Soc. Mal. France, 6: 300. [Regions armoricaine and aqui-
taine; Provence].
Circulus striatus bicarinatus Altimira, 1977: 25. [Type locality: Sant Pol de Mar, Barcelona].
Delphinula costata Danilo and Sandri, 1856.
Type material: Probably in ZMB.
Other material examined: Usual form: Spain: 1 s, Santander (MHNS); 2 s, Ria de Vigo, 10 m (MHNS);
2s, Tarragona (CAP); 5 s, Denia (beached) (MHNS); 133 s, 11 f, Cullera (beached) (CDO); 16 s, Denia
(beached) (CDO”; 18 s, Oliva (beached) (CDO)”; 6 s, Jávea (beached) (CDO”; 2 s, Ibiza (CDO). Morocco:
3 s, Agadir (MHNS). Carinate form: Spain: 7 s, Cullera (beached) (CDO). Tricarinate form: Spain:
3 s, Cullera (beached) (CDO).
Description: Shell (Figs. 2A-E, 3A-E):
the best description can be seen in FRETTER
AND GRAHAM (1978). Shell flat with about
4 whorls (including protoconch) reaching
1.6 mm in diameter and 0.8 mm in height;
shells with five whorls reaching 2.75 mm
diameter and 1.25 mm height respectively
(GRAHAM, 1988).
The protoconch (Figs. 2F, 3F, 4F-G) is
multispiral, has a little less than 2.25
whorls, and is about 390 um in width. It
is smooth without any ornamentation
and its end is barely marked with a light
line coincident with the beginning of the
spiral cords of the teleoconch.
The shell with typical morphology has
spiral cords not forming keels. Apically 6-
7 spiral cords can be observed whose
width is approximately half that of the cor-
responding interspaces. The subsutural
adapical one is weak, a little deep and
limited on both sides by granules. Below,
there are three more similar cords; the
lowest one situated on the upper keel.
Below these, there are four more cords
(upper laterals) the fourth being in the
emplacement of the peripheral keel.
Examined from the umbilical side,
the shell has very weak low lateral
cords, which in some shells give the
impression that there are no cords, up to
an isolated cord, situated in the position
of the basal keel and which may some-
times be double. Apparently, there are
no basal cords between the basal keel
and the umbilical cords, the latter being
always present and evident under mag-
12
nification of the umbilicus. The lack of
basal cords may be caused by erosion or
they may decrease as the shell grows.
There are four or five umbilical
cords, separated by sulci and crossed by
an axial irregular and granulose sculp-
ture. The aperture is circular.
The operculum is corneous and
rounded.
The animal of C. striatus has been fig-
ured in FRETTER AND GRAHAM (1962: 284)
Distribution: The species is known
from Ireland and the British Isles
(FRETTER AND GRAHAM, 1978; GRAHAM,
1982, 1988), Atlantic Iberian Peninsula
(ROLÁN, 1983); Portugal (NOBRE, 1940);
Mediterranean (HIDALGO, 1917; PoPPE
AND GOTO, 1991). The record from Sáo
Tomé and Príncipe (FERNANDES AND
ROLÁN, 1993), refers to another species
with which it was confused at the time.
Remarks: Adeorbis tricarinatus Wood,
1848 was described as a species distinct
from C. striatus. The description of this
species was based on fossil shells and
authors like JEFFREYS (1865) considered it,
as well as C. supranitidus (Wood, 1848), a
fossil variety of C. striatus. In spite of this
opinion, even recently some authors, such
as TERRENI (1981) consider it valid.
AARTSEN, MENHORST AND GITTENBERGER
(1984, fig. 57) indicate that this taxon as
dubious, but admit that it could be valid
and compare it to other similar fossil
species. COPPINI, CUNEO, MARGELLI AND
CAMPANI (2005, fig. 2c) present a similar
shell and consider that itis a valid species
OLIVER AND ROLÁN: The family Tornidae in the Fast Atlantic, 2. Circulinae
umbilical
cords
peripheral keel
subperipheral
keel
periumbilical cord
"ECETIA CI
e
peripheral á
keel l
upper keel
subsutural cords
ELCIEINTTD
y cords A
ENTE A
A y
A
kN
basal cords
ENTE
upper
- cords
ve ] El
keel
subsutural upper
cords keel
protoconch-teleoconch
scar
second scar
Figure 1. Schematic images showing the different sculpture and the terms employed for these char-
acters.
Figura 1. Imágenes esquemáticas mostrando los distintos tipos de escultura y la terminología empleada
para estos caracteres.
which is called Circulus tricarinatus. This
is reflected in the CLEMAM web page
where this name is also mentioned as valid.
In Cullera (Valencia, East Spain), a
great quantity of material of Circulus
striatus has been collected. In this mater-
ial, there were many shells which do not
represent exactly the typical form of the
species, but have some peculiar charac-
ters instead: a form, which is carinate
13
Iberus, 29 (1)
AS
200 um
Figure 2. Circulus striatus (Philippi, 1836). A-E: shells, 1.6, 1.6, 1.5, 1.2, 1.2 mm, Cullera, Valen-
cia; E: protoconch; G: detail of the umbilicus.
Figura 2. Circulus striatus (Philippi, 1836). A-E: conchas, 1,6; 1,6; 1,5; 1,2; 1,2 mm, Cullera,
Valencia; F: protoconcha; G: detalle del ombligo.
14
OLIVER AND ROLÁN: The family Tornidae in the East Atlantic, 2. Circulinae
ATA
a ss
o:
Figure 3. Circulus striatus (Philippi, 1836). A-C: shells, 1.68, 1.7, 1.9 mm, Agadir, Morocco
(MHNS); D, E: shells, 1.9, 2.1 mm, from Tarragona (CAP); F: protoconch, Agadir; G: detail of
the microsculpture, Tarragona.
Figura 3. Circulus striatus (Philippi, 1836). A-C: conchas, 1,68; 1,7; 1,9 mm, Agadir, Marruecos
(MANS); D, E: conchas, 1,9; 2,1 mm, de Tarragona (CAP); F: protoconcha, Agadir; G: detalle de la
microescultura, Tarragona.
Iberus, 29 (1), 2011
le o Mr
y s e
200 um 200 um
Figure 4. Circulus striatus (Philippi, 1836). A, B: shells of carinate form 1.24, 1.4 mm (CDO); C-
E: shells of tricarinate form, 1.9, 1.5, 1.7 mm, Cullera, Valencia (CDO); E G: protoconchs.
Figura 4. Circulus striatus (Philippi, 1836). A, B: conchas de la forma con quilla, 1,24; 1,4 mm
(CDO); C-E: conchas de la forma con tres quillas, 1,9; 1,5; 1,7 mm, Cullera, Valencia (CDO); E G:
protoconchas.
1ó
OLIVER AND ROLÁN: The family Tornidae in the East Atlantic, 2. Circulinae
(Fig. 4A-B), has a more developed
peripheral cord / keel; another form, is
tricarinate (Figs. 4C-E) presenting three
cords more developed in the shape of a
keel. These cords are placed in the
upper position (2), peripheral position
(3) and basal position (4). The presence
of these different forms in only a small
area suggests to us that they are simply
extreme forms or variants of one
species, Circulus striatus with variable
development of the keels.
Circulus smithi Bush, 1897 (Figs. 5A-E, 6A-E 7A-D)
Cyclostrema tricarinata Smith, E. A., 1871. p. 737, p1.75, fig. 26. [Type locality: Whydah, Dahomey].
Circulus smithi Bush, 1897. New name for Cyclostrema tricarinatus Smith 1871, non Adeorbis tricari-
natus Wood 1842. p. 126.
Type material: Probably in BMNH. Not examined.
Other material examined: Western Sahara: 4 s, 3 j, Dakhla, 50-60 m, (MHNS). Mauritania: 8 s,
Nouakchott, 80-100 m (CJH). Ivory Coast: 1 j, off Grand Bassam, R/V “Antea Benchaci 1”, 5* 11,3
N, 3 46' W, (MNHN ); 3 s, off Grand Bassam R/V “Antea Benchaci I” L, 30 m, 5 09,2 N, 39 47,1” W
(MNAHN). Ghana: 30 s, 13 j, 8 £, Miamia, 38-40 m (MHNS); 8 j, 8 £, Miamia, 45-55 m (MHNS). Angola:
1 s, Luanda, 50 m (MHNS); 22 s, 1 f, Luanda, 20-100 m (MHNS).
Description: Shell (Figs. 5A-C, 6A-D,
7A-D) flat reaching 1.8 mm in diameter,
with 4.1 whorls (protoconch included)
and height of about 0.86 mm. In lateral
view, the first whorls barely extend
beyond the level of the last whorl,
although this character is somewhat
variable.
The protoconch (Figs. 5D, 6E-F) is
smooth with 2 Y whorls, and about 560
um in diameter. Well preserved proto-
conchs may show very fine slightly
sinusoidal growth lines. The teleoconch
begins with a not very noticeable line,
slightly sinusoidal, and with the onset
of the spiral cords. In some shells the
protoconch seems to have more whorls
due to the fact that the first whorl of the
teleoconch is practically smooth. In such
shells, the transition to the protoconch is
not clear, but can be seen as the subsu-
tural cord continues parallel to the
suture and the other cords appear pro-
gressively below, sometimes after a new
interruption as a scar, where they are
more evident.
As in other Circulus, the shell sculp-
ture consists of spiral cords which are
narrower than their interspaces (Fig.
5E). Growth lines can be seen in these
interspaces. The umbilicus is wide and
may present 2-3 umbilical cords in the
interior, but sometimes these may be
transformed into 8-9 very fine and
closely set cords.
Distribution: From Western Sahara
south to Angola.
Remarks: This species presents some
variability, but most of the shells have
three cords which are more developed,
forming keels: the upper one in position
2 (upper keel), 3 (peripheral keel) and 4
(basal keel) (see Fig. 1 for these posi-
tions). The external lip is inserted on the
previous whorls a little above the
peripheral keel, while the internal lip
begins at the level of the lower keel.
Between the suture and the upper keel
there are 4-5 cords, the first one of
which is very close to the suture.
Between the upper keel and the periph-
eral one there are two cords; and
between this latter and the lower one
there are three or four. Occasionally, one
of these cords can be more developed
forming a keel above the basal one. In
basal view, five basal cords can be seen.
The separation with those C. striatus
which present more prominent periph-
eral keels is based mainly on the umbili-
cal axial striation present between the
umbilical cords, while C. smithi lacks
this sculpture completely, only showing
spiral cords. Furthermore, the cords of
C. striatus have more volume than those
of C. smithi.
17
Iberus, 29 (1), 2011
Figure 5. Circulus smithi Bush, 1897. A-C: shells, 1.7, 1.89, 1.92 mm, Miamia, Ghana (MHNS);
D: protoconch; E: details of the microsculpture.
Figura 5. Circulus smithi Bush, 1897. A-C: conchas, 1,7; 1,89; 1,92 mm, Miamia, Ghana (MHNS);
D: protoconcha; E: detalles de la microescultura.
18
OLIVER AND ROLÁN: The family Tornidae in the East Atlantic, 2. Circulinae
500 um
Figure 6. Circulus smithi Bush, 1897. A-D: shells, 2.9, 3.2, 2.3, 2.6 mm, Congo (MNHN); E, F:
protoconchs.
Figure 6. Circulus smithi Bush, 1897. A-D: conchas, 2,9; 3,2; 2,3; 2,6 mm, Congo (MNHN); E, F:
protoconchas.
Iberus, 29 (1), 2011
Circulus congoensis (Thiele, 1925) (Figs. 8A-D, 9A-I)
Vitrinella congoensis Thiele, 1925. Gast. Deut. Tiefsen Expedition: 147, pl.9, fig. 3A-C. [Type locality:
Congo mouth].
Circulus striatus in ADAM AND KNUDSEN (1969): 10, fig. 5.
Type material: Holotype (Figs. 8A-C) in ZMB.
Other material studied: Western Sahara: 1 c, Dakhla (50-60 m) (MHNS); Senegal: 1 s, Casamance
12” 20,7 N, 16” 53,1” W (MNHN). Ghana: 14 s, Miamia, 38-40 m (MHNS). Guinea Conaktry: 1 s, 1 j,
W Ile Quito, R/V “André Nizery” Sedigui II, 10 00' N,15” 46' W, 28 m (MNHN); 3 s, 1 j, W Ile Quito,
R/V “André Nizery” Sedigui IL, 10%00'N, 15” 58” W, 34 m (MNHN); 3 s, W Ile Quito, 10 00' N, 15%
43 W, 26 m (MNHN); 1 s, Río Yomponi 10? 24” N, 14” 50 W, 22 m (MHNS); 3 s, Río Nuñez 10% 35,5'
N, 15” 26" W 9 m (MN HN). Guinea Bissau: 1 s, Bissau 11 1045 N, 15” 44,5” W, 25 m (MHNS); Angola:
3 s, Luanda, 20-100 m (MHNS).
Description: Shell (Figs. 8A-C, 9A-D)
with 4.3 whorls (protoconch included)
reaching 1.7 mm in diameter and 0.9
mm in height.
The protoconch (Figs. 8D, 9F-G) is
smooth and reaches nearly three whorls
and about 660-710 um in diameter. The
spiral cords begin after a small scar.
The teleoconch is ornamented with
spiral cords which are clearly narrower
than the corresponding interspaces. All
cords are similar in size; none of them is
more developed and so they do not
form any keel. Only the subsutural cord
(Fig. 9H-I) is clearly narrower than the
others just when it appears at the end of
the protoconch, and is only visible
under strong magnification. After this
first whorl, this cord increases in size, its
width subsequently approaching that of
the other cords.
The shell has a little more than 20
spiral cords: 7-8 from the suture to the
place where the basal keel (which does
not exist) would be; about ten in the
basal area and 5-6 more inside the
umbilicus. The cords are a little more
flat at the base than at the dorsal area.
The larger shells, like the holotype,
may have fewer cords or they may be
less apparent.
Distribution: This species is known
from the Western Sahara south to Angola.
Remarks: When ADAM AND KNUDSEN
(1969) reviewed the taxon Circulus stria-
tus from West Africa, they mixed up
more than one species. They studied 21
shells from 7 localities, 14 of which from
Cotonou (Dahomey). They described
20
and figured as C. striatus the only shell
from Illes de Los, West of Crawford
Banc, which in our opinion does not
belong to this species but to another that
we will describe below. They compared
the shells from Cotonou, which were
also illustrated, commenting that they
could correspond to Vitrinella congoensis
Thiele, 1925, but considering it as a
variety of C. striatus. After examining
the photographs of the holotype of Vit-
rinella congoensis Thiele in ZMB, we
confirm that the shell of V. congoensis is
really very similar to the shells repre-
sented by Adam and Knudsen as C.
striatus from Cotonou, but in our
opinion it is different from the true C.
striatus. For this reason we consider that
V. congoensis Thiele is a valid species of
Circulus, different from C. striatus.
Probably, the confusion of Adam
and Knudsen could be due to the study
of a large lot of Circulus (approximately
150 shells) from Arcachon in the
Dautzenberg collection. The shells in
this lot (not examined by us) were
apparently recent and showed great
variability: some of them had a smooth
base, which is usual in the typical Euro-
pean C. striatus, whereas others had a
striated base and even intermediate
grades appeared. Therefore, the decision
of Adam and Knudsen to consider all of
them (those from Arcachon and those
from West Africa) as C. striatus is under-
standable in view of the low number of
shells examined from some areas, their
similarity and small size, and the lack of
electronic microscopy.
OLIVER AND ROLÁN: The family Tornidae in the East Atlantic, 2. Circulinae
Figure 7. Circulus smithi Bush, 1897. A, B: shells, 2.7, 2.7 mm, Nouakchott, Mauritania (CJH);
CD: shells2.2,2.9'mm, Dakar, Senegal.
Figure 7. Circulus smithi Bush, 1897. A, B: conchas, 2,7; 2,7 mm, Nouakchott, Mauritania (CJH);
C, D: conchas, 2,2; 2,9 mm, Dakar, Senegal.
The use of electronic microscopy
allowed us to evaluate that the variabil-
ity in C. striatus could occasionally lead
to consider different species (like C. tri-
carinatus). The study of many shells of
C. striatus from the Mediterranean
(Cullera, Valencia) and the Atlantic
(Galicia, Morocco) showed us that those
typical characters are constant and dif-
ferent from other species.
The most important differences
between C. striatus and C. congoensis are:
1- The presence on the entire shell of
a light subsutural sculptured cord in C.
striatus. In C. congoensis this cordlet is
barely sculptured, and it is only found
at the beginning in the teleoconch, later
changing into a normal cord.
2- The cords in the lateral low area
and basal area in C. congoensis are
21
Iberus, 29 (1), 2011
Figure 8. Circulus congoensis (Thiele, 1925). A-C: holotype, 1.93 mm, Congo mounth (ZMB); D:
protoconch.
Figura 8. Circulus congoensis (Thiele, 1925). A-C: holotipo, 1,93 mm, desembocadura del Congo
(ZMB); D: protoconcha.
evident and have the same size as the
dorsal ones, but are a little flatter on the
base. In C. striatus the base area appar-
ently lacks any cord and has a very light
and almost smooth aspect, which can be
seen under strong magnification. It is
possible that in the material from Arca-
chon studied by Adam and Knudsen
some shells of C. striatus with basal
cords were present, due to the great
22
variability of the species. These shells
never have stronger marked cords as
does C. congoensis.
3- The umbilicus of C. striatus is
more open than that of C. congoensis.
4- C. striatus is proportionally flatter
than C. congoensis.
5- The umbilical cords in C. striatus
are more axially sculptured than those
of C. congoensis.
OLIVER AND ROLÁN: The family Tornidae in the Fast Atlantic, 2. Circulinae
200 um. 50 um
50 um
Figure 9. Circulus congoensis (Thiele, 1925). A-D: shells: 1.7, 1.7, 1.6, 1.6 mm, Miamia, Ghana
(MHNS); E: detail of the umbilicus; E G: protoconchs; H, l: microsculpture.
Figura 9. Circulus congoensis (Thiele, 1925). A-D: conchas: 1,7; 1,7; 1,6; 1,6 mm, Miamia, Ghana
(MHNS), E: detalle del ombligo; E G: protoconchas; H, 1: microescultura.
Iberus, 29 (1), 2011
Circulus senegalensis Adam and Knudsen, 1969 (Figs. 10A-F)
Circulus senegalensis Adam and Knudsen, 1969: 13, fig. 6. [Type locality: Senegal, 60 m].
Type material: Holotype and 29 paratypes in RBINS.
Other material examined: Western Sahara: Dakhla: 1 s, beach sediments (MHNS). Mauritania: 1
s, Nouakchott, fishermen dredgings, 80-100 m (CJH). Ivory Coast: 11 s, Centre Oceanografique,
Abdijan, stn 13, (MNHN); 1 s, Radiale Grand Bassam R/V “Antea Benchaci I”, 5 05' N, 3” 46.6' W,
55 m (MNHN): 1 s, Radiale Gd. Bassam R/V “Antea Benchaci I”, 5" 06' N, 3 46.6! W, 50 m (MNHN).
Ghana: 2 s, Miamia, 50 m (MHNS); 31 s, Miamia, 45-50 m (MHNS); 4 s, 38-40 m (MHNS); 12 s, Cap
Three points, 35-65 m (MHNS). Congo: 1 s, Sta. 964, R/V André Nizery, 5” 25' S, 12” 01 E, 70 m
(MNAHN ) 1 s, Sta. 949, R/V André Nizery, 5” 23' S, 11” 48' E, 40 m (MNHN); 5 s, Sta. 916, R/V André
Nizery, 9405 101804 E 00m (MNHN ); 1 s, Sta. 1031, R/V André Niza Slots OZ 2 ESO
m (MNHN). Angola: 2 s, Cabinda, W Landana 5” 07' S, 12” 01' E, 9 m (MNHN); 32 s, 5 j, Mussulo,
Luanda, 20-100 m (MNHN); 25 s, 50 j, Luanda, 50-70 m (MNHN); 4 s, Luanda, 100 m (MHNS).
Description: See ADAM AND KNUDSEN
(1969). Shell (Figs. 10A-D) flat, with 4.5.
whorls, solid, whitish, reaching up to 2.8
mm in width and 1.7 mm in height.
Protoconch (Fig. 10E) multispiral with
almost two whorls and a diameter of about
540 um. The transition to the teleoconch
is difficult to see because of the lack of
sculpture on this part of the surface.
The teleoconch is smooth except for
the presence of three (sometimes four)
umbilical cords separated by sulci, the
innermost one being more developed.
Axial ornamentation formed by little
sinusoidal growth lines, which when
crossing the umbilical cords give them
an undulating aspect only visible under
strong magnification.
Aperture circular. At those points
where keels appear in other species, a
sinusoidal profile may be observed.
Distribution: This species is found all
along the African coast from Western
Sahara south to Angola.
Remarks: This species is very distinct
because it is smooth on the dorsum and
thus quite different from other species
occurring in the area studied.
Circulus pseudopraecedens Adam and Knudsen, 1969 (Figure 11A-D)
Circulus pseudopraecedens Adam and Knudsen, 1969: 14, fig. 7. [Type locality: Grand Cess,
Liberia].
Type material: Holotype and 7 paratypes in RBINS. Holotype figured in ADAM AND KNUDSEN
(1969).
Other material examined: Senegal: 2 j, Dakar, 20 m (MHNS); 2 s, Casamance, 12” 20,7" N, 16" 53,1"
W, 15 m (MNAHN); 1 s, Le Tacoma, 15 m (CJP). Ghana: 22 s, 50 j, 3 f, Miamia, 35-40 m (MHNS); 8 s,
1 j, Miamia, 40-55 m (MHNS). Equatorial Guinea: 2 s, Río Núñez, 1? 35' N, 15” 26" W, 9 m (MHNS);
1 s, W Ile Quito, R/V “André Nizery” Sedigui II, 10% 00' N, 15” 46' W, 28 m (UNHN). Angola: 7 s,
Luanda, 20-100 m (MHNS).
Description: Shell (Figs. 11A-C): see
ADAM AND KNUDSEN (1969).
Shell circular, depressed, with 4.8
whorls (protoconch included) which
reaches 3.3 mm in diameter and 1.3 mm
in height. Protoconch (Fig. 11D), with a
little less than 3 whorls and about 800 um
in width. The transition to the teleoconch
is difficult to see, but appears at the begin-
ning of the upper cord. The shell has a vit-
24
reous, slightly transparent aspect. It has a
clear peripheral keel and a spiral cord like
an upper keel. In most of the shells there
is no basal keel but ADAM AND KNUDSEN
(1969) mention that they found a shell from
Rufinesque Bay with this keel.
The subsutural area is flat and
smooth without subsutural cords. The
upper lateral area can present some
scarcely prominent narrow cords. A
OLIVER AND ROLÁN: The family Tornidae in the East Atlantic, 2. Circulinae
P
1
4
.
Figure 10. Circulus senegalensis Adam and Knudsen, 1969. A, B: shells, 1.9, 2.0 mm, Abidjan,
Ivory Coast (MHNS); C, D: shells, 2.1, 1.3 mm, Luanda, Angola (MNHN); E: protoconch; E:
detail of the umbilical sculpture.
Figura 10. Circulus senegalensis Adam y Knudsen, 1969. A, B: conchas, 1,9; 2,0 mm, Abidjan, Costa
de Marfil (MHNS); C, D: conchas, 2,1; 1,3 mm, Luanda, Angola (MNHN); E: protoconcha; F:
detalle de la escultura umbilical.
25
Iberus, 29 (1), 2011
Figure 11. Circulus pseudopraecedens Adam and Knudsen, 1969. A-C: shells, 3.2, 2.8, 3.1 mm,
Miamia, Ghana (MHNS); D: protoconch.
Figura 11. Circulus pseudopraecedens Adam y Knudsen, 1969. A-C: conchas, 3,2; 2,8; 3,1 mm,
Miamia, Ghana (MHNS); D: protoconcha.
cord, placed at */3 between the suture
and the peripheral cord appears at the
beginning of the teleoconch and repre-
sents the upper keel. Below, other small
cords may appear but are barely notice-
able.
26
The peripheral keel is the most out-
standing feature of the sculpture. The
lateral low cords, the basal keel and the
basal cords are absent or are very slight
in juvenile shells. On the contrary, in
adult shells, after some scars they can
OLIVER AND ROLÁN: The family Tornidae in the East Atlantic, 2. Circulinae
appear more evidently. From a basal
view the shell shows a wide and deep
umbilicus. In its interior there are 5-6
umbilical cords.
When it comes to the axial
microsculpture, only sinusoidal growth
lines can be found.
The aperture is circular and proso-
cline, and from a basal view the upper
part of the external lip clearly extends
beyond the lower part.
Distribution: Known from Senegal to
Angola.
Remarks: The characteristic shape
with constant and prominent keels and
lacking other intermediate cords sepa-
rates this species from other congeners
in the studied area.
Circulus stephani Rolán and Ryall, 2002 (Figure 12A-F)
Circulus stephani Rolán and Ryall, 2002. Iberus, 20 (1): 95, figs. 1-6. [Type locality: Mimia, Ghana,
38-40 ml).
Type material: Holotype (Fig. 12A) in MNCN and paratypes in several museums (MNHN, MHNS,
etc.) mentioned in the original description.
Other material examined: Ivory Coast: 1 s, Abdijan Grand Bassan (col. Leboeuf Ortson) (MNHN).
Ghana: 8 s, 38-40 m; (MHNS); 4 s, Cap Three Points, 35-65 m (MHNS). Angola: Cabinda: 1 s, W.
Luanda 10? 05' S, 119 59 E, 25 m; R/V André Nizery (col. MNHN) (also that mentioned in the orig-
inal description).
Description: Shell (Figs. 12A-E): see
ROLÁN AND RYALL (2002). Shell circular,
depressed, with about 4.5 whorls reach-
ing 2.1 mm in diameter. Protoconch (Fig.
12F) with almost 2.75 whorls and 740 um
in width. Circulus stephani presents three
evident keels: upper, peripheral and basal.
The upper one is the least developed, while
the basal one is the strongest, reaching the
maximum width of the shell.
The subsutural cords appear at the
beginning of the teleoconch. They are
clearly narrower than the corresponding,
interspaces. The first one to appear will
be the upper keel. Later, on the subsu-
tural area the other four cords appear.
As the shell grows in size, more cords
appear, while the largest shells can have
up to 10 subsutural cords.
Distribution: Known from Ivory
Coast to Angola.
Remarks: See ROLÁN AND RYALL
(2002) for differentiation from other
species of the genus in West Africa.
Circulus microsculpturatus spec. nov. (Figures 13A-F)
Type material: Holotype in MNHN (23687) (Figs. 13A-B). Paratype; 1 s, Dakhla, 50 m, Western
Sahara in MNCN (15.05 /55052).
Type locality: Sediments trawled at 50 m, Guinea Conakry.
Etymology: The specific name alludes to the microsculpture characteristic of the present species.
Description: Shell (Fig. 13A-B) circu-
lar, depressed, solid, with almost 4.5
whorls, reaches 3.5 mm in diameter and
1.5 mm in height. Protoconch (Fig. 13C)
with 2 whorls and 510 um in diameter.
The main sculpture is formed by spiral
cords, narrower than the corresponding,
interspaces. In these interspaces
appears a granular microsculpture
which is characteristic of this species
(Figs. 13D-F). Three of the cords are
more developed forming keels: upper,
peripheral and basal. The basal one is
particularly developed, giving a rectan-
gular appearance to the peristome.
Between the suture and the upper keel
there are 5-6 spiral cords. Between the
upper and the peripheral keels there are
23 cords, of which the upper one is
nearly as large as the keel itself.
27
Iberus, 29 (1), 2011
Figure 12. Circulus stephani Rolán and Ryall, 2002. A: holotype, 2.1 mm (MNCN); B: paratype,
1.7 mm (MNHN); C: paratype, 2.0 mm (AMNH); D: paratype, 1.6 mm (NHMUK); E:
paratype, 2.1 mm (MHNS); F: protoconch of the holotype.
Figura 12. Circulus stephani Rolán y Ryall, 2002. A: holotipo, 2,1 mm (MNCN); B: paratipo, 1,7
mm (MNHN); C: paratipo, 2,0 mm (AMNH); D: paratipo, 1,6 mm (NHAMUK); E: paratipo, 2,1
mm (MHNS); F: protoconcha del holotipo.
Between the peripheral and the basal
keels there are four cords. There is not a
clear basal cord, the base being occu-
pied by about 14 cordlets with a width
similar to that of the interspaces. They
go into the umbilicus.
28
Distribution: Only known from the
type material (From Sahara to Guinea
Conakry).
Remarks: The microsculpture of the
present species differentiates it from the
other congenericspeciesin the studied area.
OLIVER AND ROLÁN: The family Tornidae in the East Atlantic, 2. Circulinae
200 um
Figure 13. Circulus microsculpturatus spec. nov. A, B: holotype, 3.4 mm, Guinea Conakry
(MNHN); C: protoconch of the holotype; D-F: microsculpture.
Figura 13. Circulus microsculpturatus spec. nov. A, B: holotipo, 3,4 mm, Guinea Conakry (MNAN);
C: protoconcha del holotipo; D-F: microescultura.
Iberus, 29 (1), 2011
Circulus ryalli spec. nov. (Figure 14A-D)
Circulus striatus in Adam and Knudsen (1969): 10, fig. 4.
Type material: Holotype (Fig. 14A) in MNCN (15.05 /55053). Paratypes in the following: MNHN
(23688) (1 s, Fig. 14B), MHNS (5 s, 1 j, Fig. 14C), CPR (1 s).
Type locality: Miamia, Ghana, in sediments dredged in 38-45 m.
Etymology: The species is named after Peter Ryall, a malacologist who lived for many years in
Ghana and helped us during the collection of the type material.
Description: Shell (Figs. 14A-C) circu-
lar, depressed, with 4.6 whorls (proto-
conch included), reaching 1.9 mm in
diameter and 0.9 mm in height. Proto-
conch (Fig. 14D) smooth, with 2 Y
whorls, and about 510 um in diameter.
Teleoconch with slightly prosocline spiral
cords and axial growth lines which cross
the interspaces, giving them a striated
appearance. The shell has a clear periph-
eral keel, and in the places which would
correspond to the other keels there are
somewhat developed cords; as the shell
increases in size the basal cord progres-
sively becomes keel-shaped. The subsu-
tural area is flat with six or seven cords
which appear after the protoconch scar.
These cords are wider than their inter-
spaces at the beginning, but subsequently
the interspaces increase in size while the
cords continue the same, so that at the
end of the spire the cords are clearly nar-
rower than their interspaces. Among the
subsutural cords, the adapical one is a
little wider and placed in the position of
the upper keel. The upper lateral area is
flat and so the transition has an angled
aspect (about 100). Between the upper
cord /keel and the peripheral keel, there
are 6-7 cords and, with the shell in lateral
view, they seem to be flatter and wider
than the corresponding interspaces. In
the upper lip one or two cords are
inserted on the peripheral keel. The
lateral lower area does not have cords
and is slightly concave. The basal area is
flat with 4-5 cords, two of which are more
developed, in the position of the perium-
REMARKS AND FINAL DISCUSSION
Eight species of the genus Circulus
from the East Atlantic area have been
30
bilical cord /keel and 2-3 lighter, in the
transition with the umbilical area.
Between these two groups of cords there
is a wide space. The umbilicus is open
and in its interior there are about 7-8
spiral cords as wide as the interspaces,
crossed by growth lines which give them
a striated aspect.
Dimensions: the holotype is 1.97 mm.
Distribution: Only known from the
type material.
Remarks: This species appears to be
that which ADAM AND KNUDSEN (1969)
considered as C. striatus from Iles de
Los, to the W of Crawford Bank.
Circulus striatus lacks true cords at the
base which is smooth; in the umbilical
cords, there is a typical microsculpture
while in C. ryalli there only appear fine
axial growth lines; the protoconch of C.
striatus has between 2 and a little more
whorls, with 390 um in diameter, while C.
ryallihhas a protoconch with 2 Y whorls and
about 510 um. The beginning of the teleo-
conch in C. ryalli shows evident cords, all
similar, while those in C. striatus are gen-
erally more attenuate and the subsutural
one has constantly visible microsculpture.
Circulus senegalensis has a smooth
shell lacking keels and cords.
Circulus pseudopraecedens has keels
but not spiral cords between them.
Circulus smithi has fewer cords on
the dorsal part, the space between the
keels being more occupied by cords.
Circulus microsculpturatus spec. nov.
has a more evident microsculpture over
the entire shell.
studied in the present work. Most of the
species have a tropical distribution,
OLIVER AND ROLÁN: The family Tornidae in the East Atlantic, 2. Circulinae
200 um
Figure 14. Circulus ryalli spec. nov. A: holotype, 1.97 mm, Miamia, Ghana (MNC); B: paratype,
1.9 mm (MNAHN); C: paratype, 1.9 mm (MHNS); D: protoconch of the holotype.
Figura 14. Circulus ryalli spec. nov. A: holotipo, 1,97 mm, Miamia, Ghana (MNC); B: paratipo, 1,9
mm (MNAN); C: paratipo, 1,9 mm (MHNS); D: protoconcha del holotipo.
from West Sahara south to Angola, have been collected throughout the
which seems to be an area in common to entire area.
all of them although not all (mainly the Of those, the oldest and type species
ones of which less material is available) of the genus is C. striatus. This species
31
Iberus, 29 (1), 2011
extends from the cold waters of north-
ern Europe south to the temperate
waters of the Mediterranean and north-
ern and western Morocco. It is not
present in the rest of the African west
coast but has been erroneously confused
with other species on several occasions.
As is usual in species with a wide
dispersal area, all of them have multi-
spiral protoconchs (between 2 and 3
spiral whorls).
Some European taxa which have
been included in Circulus and do not
belong there are the following;
Adeorbis subcarinatus Montagu, 1803,
now considered as a species of the
genus Tornus.
Circulus jeffreysii Monterosato, 1872:
according to WARÉN (1992) it is a
Skeneid species, not a Circulus.
Circulus formossisimus Brugnone,
1873. Synonymized with Circulus je-
ffreyst.
BIBLIOGRAPHY
AARTSEN J.J. VAN, MENKHORST H.P.M.G. AND
GITTENBERGER E. 1984. The marine Mollusca
of the Bay of Algeciras, Spain, with general
notes on Mitrella, Marginellidae and Turri-
dae. Basteria. Suppl. 2: 1-135.
ADAM W. AND KNUDSEN J. 1969. Quelques
genres de Mollusques prosobranches ma-
rins inconnus ou peu connus de l'Afrique
occidentale. Bulletin Institut Royal des Sciences
Naturelles de Belgique, 44 (27): 1-69.
BOUCHET P. AND ROCROI J.P. (Ed.); Eryda J.,
Hausdorf B., Ponder W., Valdés Á. and Wa-
rén A. 2005. Classification and nomenclator
of gastropod families. Malacología: Interna-
tional Journal of Malacology, 47 (1-2): 397 pp.
ConchBooks, Hackenheim, Germany.
COPPINI M., CUNEO F., MARGELLI A. AND CAM-
PANI E. 2005. Gastropoda e Scaphopoda del
porto de Livorno. Bollettino Malacologico, 41
(5-8): 1-8.
DaLL W.H. 1927. Small shells from dredgings
off the southeast coast of the United States
by the United States Fisheries steamer Alba-
tross in 1885 and 1886. Proceedings of the United
States National Museum, 70 (2667): 1-134.
FERNANDES F. AND ROLÁN E. 1993. Moluscos
marinos de Sáo Tomé y Principe: actualiza-
ción bibliográfica y nuevas aportaciones.
Iberus, 11 (1): 31-47.
32
ACKNOWLEDGEMENTS
The authors want to express their
thanks to Philippe Bouchet of the
MNHN for the loan of numerous
samples from this museum. Jesús
Méndez and Inés Pazos of the Centro de
Apoyo Científico y Tecnológico a la
Investigación (CACTI) of the University
of Vigo and to Ramiro Barreiro Pérez of
the Centro de Apoyo Científico y Tec-
nológico of the University of Santiago
de Compostela (CACTUS) for the
microphotographs of the material
studied in this work. Other SEM pho-
tographs were made by Marta Furió,
Laura Tormo and Alberto Jorge in the
MNCN. Also to José María Hernández
(+) from Gran Canaria, Anselmo Peñas
from Vilanova i la Geltrú and Peter
Ryall, from Maria Rain, for the loan of
material. António A. Monteiro of Lisbon
made the corrections to the language.
FISCHER P. 1887. Manuel de conchyliologie et
de paléontologie conchyliologique : ou, His-
toire naturelle des mollusques vivants et fos-
siles. Paris, Savy. xx1v + 1369 p., 23 pl.
FRETTER V. AND GRAHAM A. 1962. British proso-
branch molluscs: their functional anatomy and
ecology. Ray Society, London, xvi + 755 pp.
FRETTER V. AND GRAHAM A. 1978. The proso-
branch molluscs of Britain and Denmark.
Part 4 - Marine Rissoacea. Journal of Mollus-
can Studies, supplement 6: 153-241.
GRAHAM A. 1982. Tornus subcarinatus (Proso-
branchia, Rissoacea) anatomy and relation-
ships. Journal of Molluscan Studies, 48: 144-147.
GRAHAM A. 1988. Molluscs: Prosobranch and
Pyramidellid Gastropods. Synopses of the
British Fauna, 2. Linnean Society of London,
662 pp.
HIDALGO J.G. 1917. Fauna malacológica de Es-
paña, Portugal y las Baleares. Trabajos del Mu-
seo Nacional de Ciencias Naturales, 30, Ma-
drid: 792 pp:
JEFFREYS J.G. 1865. British conchology, or an ac-
count of the Mollusca which now inhabit the
British Isles and the surrounding seas. Vol. 111.
Marine shells, comprising the remaining
Conchifera, the Solenoconchia, and Gasteropoda
as far as Littorina. ]. van Noorst, London, 393
(+ 1) p., 8 pls.
OLIVER AND ROLÁN: The family Tornidae in the East Atlantic, 2. Circulinae
LOCARD A. 1889. Matériaux pour servir l'histoire
de la malacologie francaise. VII. Note sur les
especes francaises appartenant au genre Cir-
culus. Bulletin de la Société Malacologique de
France, 6: 283-307.
NOBRE A. 1938-40. Fauna malacológica de Portu-
gal. Moluscos marinhos e das aguas salobras.
Companhia Editora do Minho, Barcelos. 807
pp, 87 láms.
ROBBEYG+I""AND.GOLO Y. 1991 “European
Seashells. vol 1. Christa Hemmen, Darmstadt.
352 pp.
ROLÁN E. 1983. Moluscos de la Ría de Vigo, 1
Gasterópodos. Thalassas, 1 (1), supl. 1: 1-383
ÓN E. AND RUBIO F. 1991 “1990”. Aporta-
ciones a los conocimientos sobre los micro-
moluscos de África Occidental. 1. Tornidae
de Sáo Tomé y Principe. Iberus, 9 (1-2): 181-
186, 1 lám.
ROLÁN E. AND RUBIO F. 1996. Un nuevo vitri-
nélido (Mollusca, Gastropoda, Vitrinellidae)
de la isla de Sáo Tomé (África occidental).
Iberus, 14 (2): 143-146.
ROLÁN E. AND RUBIO F. 2002. The family
Tornidae (Gastropoda, Rissooidae) in the
east Atlantic. Reseñas Malacologicas, supp!l.: 1-
98.
ROLÁN E., RUBIO F. and RYALL P. 2000. A new
species of Teinostoma (Mollusca, Gastropoda,
Vitrinellidae) from Ghana (W. Africa). Ar-
gonauta, 13 (2): 81-82.
ROLÁN E. AND RYALL P. 2002. A new species of
the genus Circulus (Gastropoda, Adeorbidae)
from West Africa. Iberus, 20 (1): 95-98.
RUBIO F. AND ROLÁN E. 1991 “1990”. Aporta-
ciones a los conocimientos sobre los micro-
moluscos de África Occidental. 2 Archae-
gastropoda de Sáo Tomé y Principe. Iberus,
9 (1-2): 209-219, 5 lám.
TERRENI G. 1981. Molluschi conchiferi del mare an-
tistante la costa Toscana. 1-102 pp. Livorno.
THIELE J. 1929-1935. Handbuch der Systematischen
Weichtierkunde. 2 vols. 1154 p., 584 figs.
VERDUIN A. 1976. On the systematic of recent
Rissoa of the subgenus Turboella Gray, 1847,
from the Mediterranean and European At-
lantic coasts. Basteria, 40: 21-73.
WARÉN A. 1992. New and little known
“Skeneimorph” gastropods from the Mediter-
ranean Sea and the adjacent Atlantic Ocean.
Bollettino Malacologico, 27 (10-12): 149-248.
WOOD S.V. 1848. A Monograph of the Crag Mol-
lusca. 1. Univalves. Paleontological Society,
London. 208 pp, 21 pls.
33
O Sociedad Española de Malacología
Iberus, 29 (19:35-38, 2011
First Mediterranean record of Diaphana marshalli (Sykes,
1904) (Gastropoda, Diaphanidae) - a rare bathyal species
Primera cita para el Mediterráneo de Diaphana marshalli (Sykes,
1904) (Gastropoda, Diaphanidae) - una especie rara del batial
Enzo CAMPANT*, Cesare BOGI** and Bella S. GALIL***
Recibido el 4-11-2011. Aceptado el 20-111-201 1
ABSTRACT
The rare bathyal gastropod Diaphana marshalli (Sykes, 1904), previously known only for
the Atlantic, is reported for the first time in the Mediterranean. The specimens, collected off
Hadera, Israel, are photographed and compared with its Mediterranean congener, D. jon-
ica Di Geronimo, 1974
RESUMEN
Se cita por primera vez en el Mediterráneo el gasterópodo Diaphana marshalli (Sykes,
1904), una especie rara del batial, previamente conocida solamente en el Atlántico. La
cita se basa en ejemplares recogidos frente a Hadera, Israel, que se ilustran y se compa-
ran con su congénere del Mediterráneo, D. jonica Di Geronimo, 1974
INTRODUCTION
The bathyal molluscs of the Levan-
tine Sea are scarcely known. Nearly a
century passed from STUARNY's (1896)
publication of the specimens collected
during the voyages of the “POLA”
(1890-1893), JANSSEN's (1989) report of
those collected by “METEOR” [cruise 5]
(1987) and Bogi's account of the few
specimens collected by “POSEIDON”
[cruise 201 /2] (1994) from Eratosthenes
Seamount (GALIL AND ZIBROWIUS,
1998). A total 42 species were identified
from material collected during a series
of cruises conducted between 1994 and
1999 as part of pollution monitoring
surveys by the Israel Oceanographic
and Limnological Research (IOLR) off
the northern coast of Israel (BOGI AND
GALIL, 2004). Of these, five species con-
stituted new records for the eastern
Mediterranean, and 8 were newly
recorded from the Levantine Sea. Two
specimens, earlier considered juveniles
of an unidentified gastropod, have been
recently re-examined and recognized as
Dipahana marshalli (Sykes, 1904).
MATERIALS AND METHODS
The area investigated is located off
the coast of Israel, at depths between
1227 and 1454 m. The material was col-
lected during monitoring surveys of a
* Corso G. Mazzini 299, 57126 Livorno, Italy, E-mail enzo.campaniCfastwebnet.it
** Via delle Viole 7, 57124 Livorno, Italy, E-mail bogicesarePtiscali.it
*** Israel Oceanographic and Limnological Research, National Institute of Oceanography, P.O.B. 8030, Haifa
31080, E-mail bellaGocean.org, il
35
Iberus, 29 (1), 2011
deepwater coal fly ash disposal site off
Hadera (between 32* 38” N 34? 02 E and
32 36” N 34" 16' E). The samples were
collected aboard the R/V Shikmona,
using a 45 ft Marinovich type deep
water trawl (codend mesh 6 mm) with a
0.5 mm plankton net secured atop. The
samples were preserved in 10% buffered
formalin aboard ship. In the laboratory,
TAXONOMY
the samples were washed and sieved
through a 250 um mesh, preserved in
70% alcohol, stained in Rose Bengal and
sorted. Two specimens (with soft parts)
were collected at a depth of 1400 m in
September 1997 [1,5 x 0,91 mm (fig. 2);
1,3 x 0,8 mm (figs. 3 — 5)]. The smaller
specimen was damaged, the larger one
is preserved in the Bogi collection.
OPISTHOBRANCHIA Milne-Edwards, 1848
CEPHALASPIDEA P. Fischer, 1883
DIAPHANIDAE Odhner, 1914
Diaphana Brown, 1827
Diaphana marshalli (Sykes, 1904)
Discussion: Diaphana marshall is an
exceedingly rare species. Aside from the
type series collected off Portugal, only
two additional specimens are known: a
shell collected by the “THALASSA”
Expedition (station Z 447, 48” 47”, 11
12, 1450 — 1500 m) and cited as Retusa
(2) marshalli by BOUCHET (1975), and a
2.1 mm high specimen with soft parts,
collected by the “INCAL” Expedition
1976 (station CP08, 50” 15” N, 13” 14 W,
2644 m) (SCHIOTTE, 1999).
Retusa marshalli was described and
illustrated (SYKEs, 1904: 31, figs. 5, 6, 6a,
b) from specimens collected by the
“PORCUPINE” Expedition of 1870, off
Portugal, at station 17, at 600-1095
fathoms. Only a single specimen was
measured (“Alt. 2, diam. max. 1.1 mm”,
there, p. 32), though the author refers to
another, larger specimen (“one specimen,
broken, is larger than the type”, there, p.
32). SYKES'” illustration (1904, fig. 6) is
reproduced (fig. 1).
BOUCHET (1975: 334) expressed
doubt on the species” generic placement:
“Des caracteres tels que la présence d'un
ombilic ou la conformation du sommet sem-
blent tres originaux pour une Retusa et il
est vraisemblable que lorsque l'animal sera
connu, une séparation générique deviendra
nécessaire”. BOUCHET AND WARÉN (1979)
examined Sykes” material, illustrated
36
the shell and referred to it as “holotype”
(there, fig. 18 1), though that shell, at 2.45
mm, was rather larger that the specimen
measured by Sykes. These authors
declared *Retusa* marshalli “probably a
Diaphana” (there, p. 237). Schiotte (1999)
reported that the type material consisted
of a “holotype” 2.45 mm high
(BMNH1922122) and “pieces of 4 or 5
additional specimens, labelled as syntypes,
all dry shells” (there, p. 87).
Few species of Diaphana Brown,
1827 have been recorded from the
Mediterranean Sea, but the only one
resembling D. marhalli is D. jonica Di
Geronimo, 1974. The latter has been
considered a junior synonym of D. lactea
(Jeffreys, 1877) by BOUCHET AND WARÉN
(1979) who examined the type.
SCHIOTTE (1999: 124) who compared
illustrations of both species declared ”...
there is a very good resemblance between the
shells of D. lactea and D. jonica.”.
BOUCHET AND WARÉN (1979: 237)
separated “Retusa' marshalli from its con-
gener D. lactea as the former has ”... a
whitish unsculptured shell with an umbili-
cal chink, but the larval shell is white, not
brown as in lactea, and the broadest part of
the aperture is at the lower third of the shell,
instead of the middle of the shell. In “R'.
marshalli the larval shell is completely
visible even in adult specimens when seen
CAMPANI £T AL.: First Mediterranean record of Diaphana marshalli, a rare bathyal species
Figures 1-5. Diaphana marshalli (Sykes, 1904). 1: Sykes” illustration, reproduced, height 2.45 mm;
2: Scanning electron micrograph of the larger Levantine specimen, height 1.5 mm; 3: adapertural
view of smaller Levantine specimen, height 1.3 mm; 4: side view of the same specimen; 5: detail of
the apex of the same specimen.
Figuras 1-5. Diaphana marshalli (Sykes, 1904). 1: Reproducción de la ilustración de Sykes, altura 2,45
mm; 2: Micrografía electrónica de barrido del mayor ejemplar levantino, altura 1,5 mm, 3: Vista ada-
pertural del menor ejemplar levantino, altura 1,3 mm, 4: vista lateral del mismo ejemplar; 5: detalle
del ápice del mismo ejemplar.
3/
Iberus, 29 (1), 2011
from the adapertural side, while in lactea
only the topmost part of the larval shell pro-
trudes above the top of the body whorl. “R”.
marshalli is smaller, being only 2.45 mm
when adult”.
On comparing DI GERONIMO's (1974)
description and SEM image of the holo-
type of D. jonica with the Levantine
specimens of D. marshalli it was appar-
ent that the shell of the former is more
cylindrical and slender than the shell of
the latter species, its height-to-width
ratio being 1,84 compared with 1,6-1,65
in marshalli; the columella differently set
and the umbilicus narrower; the apex of
D. jonica is described as ”piúu o meno
sporgente”, but is similar to that of D.
lactea as figured in BOUCHET AND
WARÉN (1979) with only the topmost
part of the larval shell protruding above
the body whorl.
The reproductive biology of D. mar-
shalli is unknown, but the size of its larval
shell indicates planktotrophic larval
development (BOUCHET AND WARÉN,
BIBLIOGRAPHY
BOGI C. AND GALIL B., 2004. The bathybenthic
and pelagic molluscan fauna off the Levan-
tine coast, eastern Mediterranean. Bollettino
Malacologico, 39: 79-91
BOUCHET P., 1975. Opisthobranches de pro-
fondeur de l'Ocean Atlantique. 1 Cephalas-
pidea. Cahiers de Biologie Marine, 16: 317-365
BOUCHET P. AND WARÉN A,, 1979. The abyssal
molluscan fauna of the Norvegian Sea and
its relation to other faunas. Sarsia, 64: 211-243
DI GERONIMO L, 1974. Molluschi bentonici in
sedimenti recenti batiali e abissali dello Jo-
nio. Conchiglie, 10 (7-8): 133-172.
GALIL B.S. 2004. The limit of the sea: the bathyal
fauna of the Levantine Sea. Scientia Marina,
68 (Suppl.3): 63-72.
GALIL B.S. and ZIBROWIUS H. 1998. First benthos
samples from Eratosthenes seamount, East-
ern Mediterranean. Senckenbergiana maritima,
28(416): 111- 121.
JANSSEN R., 1989. Benthos-Mollusken aus dem
Tiefwasser des óstlichen Mittelmeeres,
gesammelt wáhrend der “METEOR”- Fahrt
5 (1987). Senckenbergiana maritima, 20 (5/6):
265-276.
38
1979: 231). SCHIOTTE (1999: 133) agrees
“... Interestingly, deep-water species usually
seem to have planktotrophic development” .
This may explain the occurrence of a rare
Atlantic bathyal diaphanid gastropod in
the Levantine Sea. The common mollusks
at depths greater than 1000 m off the
Israeli coast are eurybathic Atlanto-
Mediterranean and Boreal species with
an upper bathymetric range enabling
them to overcome the barriers posed by
the shallow Gibraltar Straits and the
Siculo-Tunisian sill (< 400 m), or steno-
bathic species with epipelagic larvae.
Indeed, the present record of D. marshalli
agrees with the distribution patterns of
the Levantine deep water benthos
(GALIL, 2004).
-_ ACKNOWLEDGEMENTS
We thank Dr. A. Warén, for the SEM
images and Mr. S. Bartolini for the
digital photographs.
SCHIOTTE T. 1999. A taxonomic revision of the
genus Diaphana Brown, 1827, including a dis-
cussion of the phylogeny and zoogeography
of the genus (Mollusca: Opisthobranchia)
Steenstrupia, 24: 77-140
STURANY R. 1896. Berichte der Commission fúr
Tiefsee-Forschungen XVIII. Zoologische
Ergebnisse VII. Mollusken I (Prosobranchier
und Opisthobranchier; Scaphopoden; Lamel-
libranchier) gesammelt von S.M. Schiff “Pola”
1890-1894. Denkschriften der Kaiserlichen Aka-
demie der Wissenschaften, Mathematische-Na-
turwissenschaftlischen Classe, 63: 1-36, pl.1-2
SYKES E.R. 1904. On the Mollusca procured dur-
ing the “Porcupine” Expeditions 1869-1870.
Supplemental notes, part I. Proceedings of the
Malacological Society of London, 6: 23-40, pl.
O Sociedad Española de Malacología Iberus, 29 (1):39-46, 2011
Otala punctata (O.F. Miiller, 1774) (Stylommatophora:
Helicidae) in Italy
Otala punctata (O.E Miller, 1774) (Stylommatophora: Helicidae)
en Italia
Willy DE MATTIA* and Francesco MASCIA**!
Recibido el 2-X-2010. Aceptado el 24-111-2011
ABSTRACT
A living population of Otala punctata [O.F. Muller, 1774) has been found for the first time
in Sardinia, Italy. In the island the species was previously recorded by several authors, but
only finding badly preserved shells, often considered of doubtful origin. An anatomical
and conchological description is given, and a comparison with other populations of the
species and O. lactea (Muller, 1774) from the W-Mediterranean region is carried out. The
species distribution is limited to a coastal sector of NW-Sardinia characterized by Mediter-
ranean maquis and rural environments. Conservation status of the population is discussed,
and its presumable origin from the Iberian peninsula through active human transportation
is proposed.
RESUMEN
Una población viva de Otala punctata [(O.F. Múller, 1774) se ha encontrado por primera
vez en Cerdeña, Italia. Existen citas anteriores por parte de varios autores, pero sólo
basadas en conchas mal conservadas y a menudo de procedencia dudosa. Se hace una
descripción anatómica y conquiliológica, y se compara con otras poblaciones de la espe-
cie y con O. lactea (Muller, 1774) de la región W-Mediterráneo. La distribución de la
especie se limita a un sector costero del noroeste de Cerdeña, un medio rural caracteri-
zado por matorral mediterráneo. Se examina el estado de conservación de la población
y se sugiere su presumible origen desde de la península Ibérica a través de transporte
antrópico.
INTRODUCTION
In Italy O. punctata was recorded for
the first time (as Archelix apalopena
(Bourguignat, 1867)) by MALATESTA AND
SETTEPASSI (1954) from Alghero (N-W
Sardinia). Its presence in the same area
has been confirmed later by CARRADA,
PARISI AND SACCHI (1967). Significantly,
both papers reported finding badly pre-
served shells only and no living speci-
men was ever found. Paulucci (1886)
reported O. lactea (Muller, 1774) from
the Tuscan Archipelago (Argentarola
island). This record, based on a single,
badly preserved shell, could be referred
to O. punctata, but Eobania vermiculata
(O.F. Múller, 1774) cannot be excluded
* Via di Monte San Giovanni 8, 1 34147 Muggia, Italy; wdemattiagmail.com
** Via Oreste Salomone 32, 1 09030 Elmas, Italy; fr.maxiaCgmail.com
' Corresponding author
37
Iberus, 29 (1), 2011
(GiustTI, 1976; BODON, FAVILLI, GIUSTI
AND MANGANELLI, 1995).
O. punctata has a Western-Mediter-
ranean distribution. It is found in north-
west Algeria, eastern Spain and the
Baleares, south-western France and
Malta (FALKNER, 1990; CLANZIG AND
BERTRAND, 2001; FALKNER, RIPKEN, AND
FALKNER, 2002; BARBARA AND SCHEMBRI,
2008). The species is widely raised in
heliciculture and thus present also in
North and South America, and South
Africa (HERBERT AND SIRGEL, 2001;
COwIE, DILLON, ROBINSON AND SMITH,
RESULTS
2009). The aim of this work is to clarify
the Status of Otala punctata in Sardinia.
MATERIAL AND METHODS
The snails were killed in water and
then fixed in 75% ethanol. Bodies were
isolated from the shell and then dissected
under an optical microscope. Anatomical
details were drawn using a camera
lucida. Empty shells were measured
(n=20 for each population). The material
is kept in the collections of the Authors.
Otala punctata (O.F. Múller, 1774)
Material examined [dsp, dissected specimen(s)]. — Italy: Sardinia, Alghero, Sorgente Lu Cantar,
407 32 18” N 8? 19 30” E, 30 m alt., 07. ii. 2008, 3 dsp. F. Mascia leg.; Sardinia, Alghero, Cala Bona,
20 m alt., 40? 32 *40” N 8919 20” E, 07. ii. 2008, 2 dsp. F. Mascia leg.; Malta: Mosta, 80 m alt., 35 54”
34” N 14? 25' 05” E, 17. i. 2010, 2 dsp, N. Barbara leg. Spain, Málaga, El Tarajal, 30 m alt., 36? 70'
204 NAS S0023 E, 12:x1.2008, 2 dsp, Je: Torres leg;
Shell (Figs 9-10): The protoconch is
dark violet-brown to dark brown. The
teleoconch is thick and robust, globose
to subglobose, conical above and convex
below. There are up to 5 main, dark
brown to light brown, variably wide
bands, which are fused with a superim-
posed pattern of whitish reticulation.
Sometimes the main bands abruptly
fade becoming barely visible and the
shell becomes almost uniformly creamy
in colour. The polished external surface
shows irregular, fine growth lines and
very fine, dense spiral lines. The spire is
conical and not much raised with 4-5
regularly growing whorls. The last
(Right page) Figures 1-3. Otala punctata (O.F. Múller, 1774). Italy: Sardinia, Alghero, Sorgente Lu
Cantar. 1, 3: genitalia (ovotestis excluded); 2: inner walls of atrium and penis. Abbreviations, A:
atrium; AG: albumen gland; BC: bursa copulatrix; BCD: diverticulum of the bursa copulatrix;
BW: body wall; CLS: crest-like structure; DBC: duct of the bursa copulatrix; DG: digitiform
elands; DP: distal penis; DS: dart sac; dsp: dissected specimen[s]; DV: distal vagina; E: epiphallus;
E: flagellum; FHD: first hermaphrodite duct; FO: free oviduct; G: glans or penial papilla; PP:
proximal penis; PPP: pseudo-penial papilla; PR: penial retractor muscle; PSP: pilaster-shaped
pleat; PV: proximal vagina; PW: penial wall; TILS tongue-like structure; UOS: uterine ovisper-
miduct; VD: vas deferens.
(Página derecha) Figuras 1-3. Otala punctata (O.E Múller, 1774). Italia: Cerdeña, Alghero, Sorgente
Lu Cantar. 1, 3: órganos genitals (ovotestis excludo); 2: paredes internas del atrio y del pene. Abreviatu-
ras, A: atrio; AG: glándula del albumen ; BC: bursa copulatrix; BCD: divertículo de la bursa copula-
trix; BW. pared del cuerpo; CLS: estructura en forma de cresta; DBC: conduto de la bursa copulatrix;
DG: glándulas digitiformes ; DP: pene distal ; DS: saco del dardo; DV: vagina distal ; E: epifalo; F:
flagelo; FHD: primer conducto hermafrodita; FO: oviducto libre; G: glans o papila penial ; PP: pene
proximal ; PPP: papilla pseudo-penial; PR: músculo retractor penial; PSP: pliegue en forma de pilas-
tra; PV: vagina proximal ; PW: pared del pene; TLS estructura linguiforme; UOS: oviespermiducto
uterino; VD: vas deferens.
40
De MArria AND Mascla: Otala punctata (Stylommatophora: Helicidae) in Italy
4]
Iberus, 29 (1), 2011
Figures 4-6. Otala punctata (O.E Miller, 1774). 4: Spain, Málaga, El Tarajal, genitalia (ovotestis
excluded); 5, 6: Malta, Mosta; 5: genitalia (ovotestis excluded); 6: inner walls of atrium and penis.
Figures 4-6. Otala punctata (O.E Múller, 1774). 4: España, Málaga, El Tarajal, genitalia (ovotestis
excluído); 5, 6: Malta, Mosta; 5: genitalia (ovotestis excluído); 6: paredes internas del atrio y del pene.
42
DE MArTIA AND MAscIa: Otala punctata (Stylommatophora: Helicidae) in Italy
Figure 7. Otala lactea (Miller, 1774). Spain, Menorca, Mahon, genitalia (ovotestis excluded).
Figura 7. Otala lactea (Múller, 1774). España, Menorca, Mahón, órganos genitales (ovotestis excluido).
whorl is very large (70% of shell height),
well rounded and markedly descending
where approaching the aperture. The
sutures are moderately deep and the
umbilicus is closed. The aperture is
markedly oblique and oval. The peris-
toma is interrupted, thick and reflected
and is whitish in colour. A columellar
tooth, more or less evident, is often
present. The columellar part of aperture,
palatum and parietum are always dark
brown in colour.
Diagnostic characters of genitalia (Figs
1-6): Proximal part of the vagina with
two digitiform glands. Each gland con-
sists of a short base which bifurcates
into three or four main branches. Each
main branch gives rise to numerous
long digitiform appendices. A single,
very large dart-sac enters about midway
along the vagina. The dart-sac contains
a single, straight long dart with four
lateral wings and a spear-like head; it
opens into the vagina with a tongue-like
structure. Along the inner wall of vagina
there is a huge pilaster-shaped pleat
which reaches the large crest-like struc-
ture in the atrium. A moderately short
copulatory (5-7 mm) duct divides into a
diverticulum of bursa copulatrix and a
duct of bursa copulatrix. Diverticulum
and duct have almost the same length.
The bursa copulatrix is usually oval or
round. The vagina enters the atrium
side by side with the penis. A moder-
ately short (8-10 mm) penial flagellum
arises where the vas deferens enters the
penial complex. A rather short epiphal-
lus (6-8-mm) enters the penis (8-10 mm)
where the penial retractor meets the
penial wall. The penis has a proximal
widened portion (almost twice as long
as the distal) and enveloped in a thin
penial sheath. The short penial papilla is
surrounded by a solid and long pseudo-
penial papilla with a grooved surface.
Dimensions of Sardinian specimens:
Shell diameter: 29 + 1.7 mm (range: 27 -
32 mm) Shell height: 18 + 1.1 mm
(range: 16-20 mm) (average value +
standard deviation).
Anatomical and conchological inves-
tigation allowed to easily distinguish
Otala punctata from O. lactea (Miller,
1774) and Eobania vermiculata. Otala
lactea has a smaller shell (average diam-
A3
Iberus, 29 (1), 2011
Alghero
Figure 8. Distribution of Otala punctata (Miller, 1774) in Sardinias Italy.
y
Figura 8. Distribución de Otala punctata (Múller, 1774) en Cerdeña, Italia.
eter of 20 mm) and the inner part of the
aperture (peristome, parietum and
palatum) is uniformly dark brown in
colour (Fig. 11). E.vermiculata has a spire
somewhat more elongated and the inner
part of the aperture is uniformly creamy
white in colour (BODON ET AL., 1995).
Eobanía vermiculata and O. lactea can be
easily distinguished from O. punctata by
the anatomy of the genitalia. Eobania
vermiculata has a much longer flagellum
and vagina, while the free oviduct is
markedly shorter. The diverticulum of
the bursa copulatrix is 6-10 times longer
than the duct of bursa copulatrix. On
the distal penis, a slender false penial
papilla is present, which originates from
the penial wall and does not surround
the penial papilla. Otala lactea can be
distinguished mainly in virtue of the
much longer epiphallus and penial fla-
gellum (Fig. 7).
The present investigation allows us
to confirm the presence of O. punctata in
Italy. The species occurs exclusively in
the southern surroundings of the town
of Alghero (Sassari, Sardinia), along the
44
southern rocky shore area of the town
(Fig. 8), from sea level to 40 meters in
altitude. Population cover an area of
approximately 0.4 km?. In the same area,
the population density of Eobania ver-
miculata (O.F. Múller, 1774) and Cornu
aspersum (O.F. Múller, 1774) is markedly
higher than that of O. punctata. This area
belongs to the Mediterranean upper
thermomediterranean thermotype (BAc-
CHETTA, BAGELLA, BIONDI, FARRIS AND
FILIGHEDDU, 2009). Geologically the area
is characterized by marine and conti-
nental Quaternary deposits (BARCA,
CARMIGNANI, OGGIANO, PERTUSAT, SAL-
VADORI, CONTI, ELTRUDIS, FUNEDDA AND
Pasci, 1996) and is mainly covered by
Mediterranean coastal maquis, belong-
ing to the western-Sardinian, calcicole,
thermomediterranean Chamaerops
humilis-Juniperetum turbinatae (Bac-
CHETTA ET AL., 2009; BIONDI, FILIGHEDDU
AND FARRIS, 2001; BLASI, ANGIUS AND
BACCHETTA, 2009). Mediterranean
coastal maquis alternates with rural
landscape principally represented by
grazing fields and cultivated lands.
DE MATTIA AND MascIa: Otala punctata (Stylommatophora: Helicidae) in Italy
l0 mm
Figures. 9-11. Shells of Otala spp. 9-10, Otala punctata (O.F. Miller, 1774). 9: Sardinia, Alghero,
Sorgente Lu Cantar; 10: Spain, Málaga, El Tarajal; 11: Otala lactea (Miller, 1774), Spain,
Menorca, Mahon.
Figures. 9-11. Shells of Otala spp. 9-10, Otala punctata (O.F Miller, 1774). 9: Cerdeña, Alghero,
Sorgente Lu Cantar; 10: España, Málaga, El Tarajal; 11: Otala lactea (Miller, 1774), España,
Menorca, Mabón.
DISCUSSION
CARRADA ET AL. (1967) stressed the
presence of fossil shells of O. punctata in
travertines from Alghero but this has not
been confirmed. Preliminary field research
revealed that in the surroundings of
Alghero, quaternary deposits do not show
the presence of O. punctata. BALDINO,
CARENTI, GRASSI, ORGOLESU, SECCHI AND
WILKENS (2008) and WILKENS (2004) did
not cite the species from the archaeologi-
cal sites of north-western Sardinia. Also
PAULUCCI (1882) did no mentions for O.
punctata in Sardinia.
Most probably O. punctata is not
autochthonous to Sardinia. The intro-
duction of O. punctata could be referred
to the Aragonese occupation during the
14th. The traditional local denomination
of this species, which is “Caragol
español” (Spanish snail), could support
the hypothesis. Nowadays snail farming,
is a common practice in Sardinia, but
not in the surroundings of Alghero. In
the island O. punctata and O. lactea were
commonly used for heliciculture in the
past, but less frequently at present.
The population of O. punctata shows
a very low density of specimens which
A5
Iberus, 29 (1), 2011
could be referred to its alien origin. Prob-
ably a feeding competition occurs with the
native syntopic Helicidae species, such as
Cantareus apertus (Born, 1778), Cornu asper-
sum (O.F. Miller, 1774) and Eobania ver-
miculata (O.F. Múller, 1774). Moreover,
because of its culinary interest, the species
is frequently collected by people. The very
limited distribution of O. punctatais a clear
risk factor. Destruction of habitat by city
expansion, mostly related to tourism facil-
ity development and collecting as a food
item represent the main threats. Further
BIBLIOGRAPHY
BACCHETTA G., BAGELLA S., BIONDI E., FARRIS
E., FILIGHEDDU R.S. AND MOSSA L. 2009. Ve-
getazione forestale e serie di vegetazione de-
lla Sardegna (con rappresentazione carto-
grafica alla scala 1:350.000). Fitosociologia, 46,
suppl. 1(1): 3-82.
BALDINO B., CARENTI G., GRASSI E., ORGOLESU T.,
SECCHI F. AND WILKENS B. 2008. L'economia
animale dal Medioevo all'Etá moderna nella
Sardegna nord occidentale. Sardinia, Corsica
et Baleares Antiquae, 6: 103-155.
BARBARA N. AND SCHEMBRI P.J. 2008. The sta-
tus of Otala punctata (Múller, 1774), a recently
established terrestrial gastropod in Malta.
Bollettino Malacologico, 44(5-8): 101-107.
BARCA S., CARMIGNANI L., OGGIANO G., PER-
TUSAT I P.C., SALVADORI l., CONTI P., ELTRU-
DIS A., FUNEDDA A. AND PASCIS. 1996. Carta
geologica della Sardegna (scala 1:200.000). Ser-
vizio Geologico d'Italia, Firenze.
BIONDI E., FILIGHEDDU R. AND FARRIS E. 2001.
Il paesaggio vegetale della Nurra. Fitosocio-
logia, 382), suppl. 2: 3-105.
BLASI C., ANGIUS R. AND BACCHETTA G. 20009.
Clima e Bioclima. /n: Bacchetta G., Bagella S.,
Biondi E., Farris E., Filigheddu R., Mossa L.
2009. Vegetazione forestale e serie di vege-
tazione della Sardegna (con rappresenta-
zione cartografica alla scala 1:350.000). Fito-
sociología, 46(1), suppl. 1: 3-82.
BODON M,, FAVILLI L., GIUSTI F. AND MANGA-
NELLI G. 1995. Gastropoda pulmonata. In:
Minelli A. Ruffo S. €: La Posta S. (Ed.), Chec-
klist delle specie della fauna d'Italia, 16: 60 pp.
CARRADA G., PARISI V. AND SACCHI C.F. 1967.
Dati per una biogeografia dei molluschi con-
tinentali in Sardegna. Atti Societa Italiana
Scienze Naturali Museo Civico Storia Naturale,
Milano, 105: 377-388.
CLANZIG S. AND BERTRAND A. 2001. Otala pun-
ctata (O.F. Miller, 1774) en France. Docu-
ments Malacologiques, 2: 47-48.
46
investigations are actually in progress in
order to clarify the origin of the Sardinian
population of O. punctata.
AKNOWLEDGEMENTS
The Authors are grateful to N.
Barbara, P. Schembri (Zabbar, Malta)
and J.S. Torres (Málaga, Spain) for pro-
viding alcohol-preserved material and
E. Zallot (Monster, Holland) for advice
and critical comments.
CowIE R.H., DILLON R.T. JR, ROBINSON D.G.
AND SMITH J.W. 2009. Alien non-marine snails
and slugs of priority quarantine importance
in the United States: A preliminary risk as-
sessment. American Malacological Bulletin,
27(1-2):113-132.
FALKNER G. 1990. Binnenmollusken. In: R.
Fechter €: G. Falkner, Weichtiere, 112-280.
Munchen.
FALKNER G., RIPKEN T.E.J. AND FALKNER M.
2002. Mollusques continentaux de France. Liste
de référence annotée et bibliographie. Muséum
national d'Histoire naturelle, Patrimoines
naturels 52, Paris, 350 pp.
Giusti F. 1976. 1 Molluschi terrestri, salmastri
e di acqua dolce dell'Elba, Giannutri e sco-
gli minori dell'Arcipelago toscano. Lavori,
Societá Italiana di Biogeografía, Siena, 5 (1974):
99-355.
MALATESTA A. AND SETTEPASSI F. 1954. Risul-
tati del rilevamento del foglio 192 (Alghero-
Isola di Sardegna). III. Fossili delle formazioni
continentali quaternarie. Bollettino Servizio
Geologico Italaliano, 76: 33-39.
HERBERT D.G. AND SIRGEL W.F. 2001. The recent
introduction of two potentially pestiferous
alien snails into South Africa and the out-
comes of different pest management prac-
tices: an eradication and a colonization re-
search in action. South African Journal of
Science, 97: 301-304.
PAULUCCI M. 1882. Note malacologiche sulla
fauna terrestre e fluviale dell'isola di Sar-
degna. Bullettino della Societa Malacologica Ita-
liana, 8: 139-381.
PAULUCCI M. 1886. Conchiglie terrestri e d'acqua
dolce del M. Argentario e delle isole circos-
tanti. Bullettino della Societa malacologica Ita-
liana, 12: 5-64, pl. 1, 2.
WILKENS B. 2004. La fauna sarda durante
l'Olocene: le conoscenze attuali. Sardinia, Cor-
sica et Baleares Antiquae, 1 (2003): 181-197.
O Sociedad Española de Malacología —_—_—_—_——— Iberus, 29 (1): 47-57, 2011
Reproduction of Donax trunculus in the littoral of Huelva
(southern Atlantic Spain): is there any difference with the
Mediterranean population from the Andalusian coast?
Reproducción de Donax trunculus en el litoral de Huelva (suroeste
Atlántico de España): ¿hay diferencias con la población mediterránea
de la costa andaluza?
Cristina TIRADO, José Luis RUEDA and Carmen SALAS*
Recibido el 13-IV-2011. Aceptado el 11-V-2011
ABSTRACT
The reproductive cycle of D. trunculus L., 1758 was studied using histology and changes
in flesh dry weight, in the littoral of Huelva (southern Atlantic Spain) from June 1990 to
May 1991. The spawning period is essentially synchronic, and extends from February to
August, with different individual intensity. Three peaks of spawning have been recorded,
April, June and July. The resting period ranges from September to December, with the
whole population in cytolized stage in October. The favourable environmental variables,
such as high levels of chlorophyll a and relatively mild seawater temperatures allow this
extensive reproductive period. This cycle shows a diphase of the spawning period with the
Mediterranean population from Málaga, which should imply a different close season for
each population.
RESUMEN
Se estudia el ciclo reproductor de D. trunculus L., 1758 mediante histología y cambios en
la biomasa, en el litoral de Huelva (sur de España Atlántico) entre junio de 1990 y mayo
de 1991. El periodo de puesta es básicamente sincrónico y se extiende desde febrero
hasta agosto, con intensidad variable según los individuos. Se han registrado tres picos
de puesta: abril, junio y julio. El periodo de reposo ocurre entre septiembre y diciembre,
con toda la población en la fase citolítica en octubre. Las variables ambientales favora-
bles, tales como los altos niveles de clorofila a y las temperaturas relativamente templadas
del agua permiten un periodo reproductor largo. Este ciclo muestra un desfase del perí-
odo de puesta con relación a la población mediterránea de Málaga, por lo que se reco-
mienda un periodo de veda diferente para cada población.
INTRODUCTION
The overexploitation, for many the fisheries. Until 2003, the law in
years, of some marketable shellfish Andalusia (autonomous region inclu-
species in southern Spain has mainly ding eight southern provinces of Spain)
been due to an incorrect management of ruled an extensive close season (over six
* Departamento de Biología Animal, Facultad de Ciencias, Universidad de Málaga, E-29071 Málaga, España.
47
Iberus, 29 (1), 2011
months) for most of the marketable
bivalves of this area. Because of the
incompatibility of these extensive
periods with a profitable economic acti-
vity, it was not enforced. The study of
the reproduction of the populations of
Donacidae in the Mediterranean littoral
of Málaga (TIRADO AND SALAS, 1998,
1999) pointed out the possibility of esta-
blishing an effective rule with a reduced
close season that would still be compati-
ble with profitable fishery activities.
These results led regional fishery autho-
rities to promote a research project for
the study of reproductive cycles of the
most important shellfish, aimed at
adjusting the close season to the biology
of each species and consequently to
improve the management of these fishe-
ries (TIRADO AND RODRIGUEZ DE LA RUA,
2000).
One of the studied species was
Donax trunculus L. 1785 (“coquina”)
with a very important consumer
market, mostly in the province of
Huelva (southwest coast). The repro-
duction of this species was studied in
the Mediterranean littoral of Andalusia
(TIRADO AND SALAS, 1998), but it is well
known that reproduction in bivalves is
strongly related to environmental varia-
bles, such as temperature, availability of
food or type of beach, among others
(BAYNE 1976; BROWN AND MCLAHLAN,
2006). The environmental characteristics
of the Atlantic shallow littoral are very
different from those of the Mediterra-
nean. The fishing methods are also diffe-
rent, in the Mediterranean littoral the
fishery is made by authorized boats,
whereas in the Atlantic littoral the fis-
hermen use individual dredges drawn
backwards in shallow water. For these
reasons, the study of the Donax truncu-
lus population from the Atlantic littoral
of Huelva was undertaken.
Donax trunculus is a littoral species
widely distributed from Brittany
(French coast) (Lucas, 1965; ANSELL
AND LAGARDERE, 1980; GUILLOU AND LE
MOAL, 1980) to Southern Morocco
(PASTEUR HUMBERT, 1962) and in the
Mediterranean (SABELLI, GIANUZZI-
SAVELLI AND BEDULLI, 1990). As a com-
48
mercial species, D. trunculus has been
intensively studied for fisheries mana-
gement (BALDACCINI AND BIANUCCI,
1984, FISCHER, BAUCHOT AND SCHENEI-
DER, 1987), parasitism and predation
(RAMÓN, GRACENEA AND GONZÁLEZ-
MORENO, 1999, SALAS, TIRADO AND
MANJÓN-CABEZA, 2001), population
dynamics (MOUÉEZA AND CHESSEL, 1976;
GUILLOU AND LE MOAL, 1980; BAYED
AND GUILLOU 1985; MAZÉ AND LABORDA
1988; NEUBERGER-CYWIAK, ACHITUV
AND MIZRAHI, 1990; ZEICHEN, ÁGNESI,
MARIANI, MACCARONI AND ARDIZZONE,
2002) and growth and reproduction at
different places of the distribution area
(Lucas, 1965; BADINO AND MARCHIONI
1972; MOUEZA AND FRENKIEL-RENAULT,
1973; BAYED 1990; NEUBERGER-CYWIAK
ET AL. 1990; TIRADO AND SALAS 1998;
GASPAR, FERREIRA AND MONTEIRO, 1999;
DevaL 2009). All this research has revea-
led a biological and physiological varia-
bility of the populations in relation to
environmental factors. Therefore, the
aim of this paper is to study the repro-
ductive cycle of D. trunculus from
Huelva, and to point out the differences
between the Atlantic and the Mediterra-
nean populations in order to request the
authorities to take into account the
biology of the species in a particular
area for a better management of the
resources.
MATERIAL AND METHODS
The sampling area is located in the
littoral of Doñana (Southwest Spain)
(367 52 N - 6” 26'W) (Fig. 1), in an exten-
sive beach, more than 20 km long and
100-200 m wide, with a tidal range
which can reach 3.6 m in spring tides.
The beach is of fine grain and gentle
slope that can be considered as a dissi-
pative beach (SCHLACHER, SCHOEMAN,
DUGAN, LASTRA AND JONES, 2008). The
samples were collected, on a sandy
bottom at 0.4 m depth, from June 1999
to May 2000, with monthly frequency
from October to February and twice a
month during the spring and summer
months. The specimens were captured
TIRADO £7 AL.: Reproduction of Donax trunculus in the littoral of Huelva
W06%50' 06%0' 0620"
d 36030
06%10' 2
1 37%N
13650"
3640'
Figure 1. Sampling area. Figure 2. Gear used for commercial collecting of Donax trunculus.
Figura 1. Área de muestreo. Figura 2. Rastro usado para la pesca de Donax trunculus.
with a dredge of 45 cm width, with 9 cm
long teeth. The mesh was 1.75 cm, usual
among the fishermen of the area (Fig 2).
A total of 4333 specimens of D. trun-
culus, between 13 and 44 mm in length,
were examined; of these 3798 were used
for the analysis of the flesh dry weight
variation (about 200 individuals /sample)
and 535 specimens for histological study
(usually 30 per month).
The length (L) of every specimen
was measured to the nearest millimetre,
and the soft parts were dried in an oven
at 100 *C for 24 h, and weighed to the
nearest milligram (flesh dry weight,
FDW). Two different indices of condi-
tion were applied, FDW/L? variation,
and that proposed by Crosby and Gale
(1990) as FDW*1000/volume of the
internal cavity of the shell (considering
the millilitres of water as milligrams)
which is referred to as CI. The regres-
sion of flesh dry weight on the length
was calculated for each sample to esti-
mate the variation in biomass of a stan-
dard individual, based on the logarith-
mic transformation of Ricker”s function
W= aL? (RICKER, 1975), where W is the
weight, L is the length, a is the ordinate
at origin, and b is the slope. To minimize
the bias introduced by the somatic
growth of individuals during the cycle
and by the variation of the size of the
specimens between successive samples,
the variation of flesh dry weight was
estimated for an individual of 29 mm
length (mean size of the population
studied). For that we took into account
the regression lines for every sample.
For histological processing, speci-
mens were anaesthetized with MgClz
fixed in 10% formaldehyde, embedded
in paraffin, sectioned at 10 um and
stained with haematoxylin of Carazzi
and eosin, and a trichromic staining
(VOF according to GUTIÉRREZ (1967)) of
haematoxylin of Carazzi, light green,
orange G and acid fuchsine. The stages
of development of the gonad were
scored according to the scale proposed
by DE VILLIERS (1975) for D. serra
Róding, 1798 in South Africa, who pro-
posed five stages:
Cytolized. The alveoli are very small
and wide apart. Some clams can be
sexed when a few gametes are present.
Preactive. The alveoli have clearly
defined alveolar walls. They are inter-
sected by broad, continuous transverse
fascicles. Most clams can be sexed.
Active. The alveoli are large and
usually adjacent. The alveolar walls are
always complete. Germ cells in various
stages of development fill the alveoli
49
Iberus, 29 (1), 2011
and are both actively increasing and
enlarging.
Spawning. The alveolar pattern is
disturbed and the alveolar walls are
often broken. The alveoli are often flatte-
ned and show an orientation towards
the centre of the gonad.
Postactive. The amount of germ cells
varies, depending on the intensity of
spawning and the time that has elapsed
since spawning took place. Phagocitic
cells are common.
The species showed a sexual differen-
tiation during the time of sexual activity.
During the active period, the ovaries of
D. trunculus are dark blue whereas the
testes have a viscous aspects and a
whitish-orange colour, which makes pos-
sible to identify the sex macroscopically
of most of the specimens.
To evaluate the possible influence of
environmental factors on the cycle, the
temperature of sea water at the surface
was measured simultaneously with the
collection of the individuals. Samples of
water (11) were taken for determination
of chlorophyll a. Pigment analyses were
carried out by filtering the water
through Whatman GF/C glass filters.
The pigments of the retained cells were
then extracted with acetone for 12 h in
cool, dark conditions, following the
recommendations of LORENZEN AND
JEFFREY (1980). Concentrations of chlo-
rophyll 4 were calculated using the
trichromatic equations of JEFFREY AND
HUMPHREY (1975).
The test of Kolmogorov-Smirnov and
Kendal and Pearson's rank correlations
included in the program SPSS 8.0, were
used to check the distribution of the data.
Cross correlation between both condition
indexes and percentage of spawning
with temperature and chlorophyll a
levels were calculated to asses their
influence on the reproductive cycle.
RESULTS
Environmental factors
The monthly temperature data
showed important fluctuations (Fig. 3),
with the maximum value in the second
50
half of September (23 *C) and the
minimum (12.5 “C) in December. The
most important decrease was recorded
from October to November (9.5 *C), and
conversely, the highest increase (4.5 *C)
was observed from February to the first
half of March.
The chlorophyll a levels were higher
than 2 ug/l throughout the cycle,
showing an irregular pattern, with two
important peaks, in September (24.3
ug /1) and March (16.1 ug/)).
Sex ratio
The sex ratio was determined on
specimens with shell length ranging
from 13 to 44 mm. In the samples from
December to the end of July it is possi-
ble to identify the sex of the whole
population according to the colour and
external aspect of the gonad. A total of
2564 specimens were examined for sex-
ratio study (all the specimens from his-
tology and those of biomass study from
December to July), of which 1268 were
males (49.45%) and 1296 females
(50.55%) (Fig. 4). The sex ratio for all
them can be considered as 1:1 (x2= 0.7,
P>0.95). The smallest specimen exami-
ned with gonad differentiated was a
female of 13.8 mm.
Sexual cycle
Flesh dry weight: The variation of
flesh dry weight —length ratio (FDW /L?)
during the annual cycle is shown in
Figure 5. The mean monthly values of
both variables, flesh dry weight (FDW)
and size (L?) were considered in 3798
specimens. The standard deviations
range between 10 and 21%, being larger
than the standard deviations observed
in the monthly mean size (between 6
and 15%) (Fig. 6) There is also a broad
weight range in most of the samples
(Fig. 7), with standard deviation
between 23 and 45%.
According to flesh dry
weight-length ratio (FDW/L?), the
population showed low values during,
summer and autumn, with an increase
from December to February. From
February, the flesh dry weight- length
ratio decreases until summer, with a
TIRADO ET AL.: Reproduction of Donax trunculus in the littoral of Huelva
Ta AL AD: SE 520, N D. JJ]. FE MrlMr.Apl Ap2 Myl My2
Figure 3. Sea water temperature and concentration of chlorophyll 4 in sea water at the sampling
site through the year.
Figura 3. Temperatura del agua de mar y concentración de clorofila a en el agua del mar en el sitio de
muestreo durante todo el año.
a %EF O %M
A A Ll D J FE — Mrl Mr2 Apl Ap2 Myl My2
Figure 4. Relative frequency (%) of sexes during the year of study. F: females. M: males.
Figura 4. Frecuencia relativa (%) de los sexos durante el año de estudio. F: hembras. M: machos.
FDW/T?
E
Jaija2 JJ AL c0A22 81 520 N.D. E MriMr2Apl Ap2 My1My2
Figure 5. Flesh dry weight (FDW)/ Length (L?) ratio during the year of study. Bars show standard
deviation.
Figure 5. Relación de peso seco de biomasa (EDW)/ Longitud (L?) durante el año de estudio. Las barras
muestran la desviación estándar.
dl
Iberus, 29 (1), 2011
Lm (mm)
A ME E 0 ASI SO AN O E Mrl Mr2 Apl Ap2 Myl My2
Figure 6. Monthly mean length of shells (L) during the year of study. Bars show standard devia-
tion.
Figura 6. Media mensual de la longitud de las conchas (L) durante el año de estudio. Las barras mues-
tran la desviación estándar.
Jnl Jn2 Jl J2 Al A2 S1 S2 O N D Jl F Mrl Mz Apl Ap2 Myl My2
Figure 7. Monthly mean flesh dry weight (DW) during the year of study. Bars show standard
deviation.
Figura 7. Media mensual del peso seco de biomasa (DW) durante el año de estudio. Las barras muestran
la desviación estándar.
Cl
Jnl Jn2 Jl J2 Al A2 SI S2 O N D J F MrlMr2Apl Ap2 Myl My2
Figure 8. Index of condition of Crosby and Gale (CI): flesh dry weight x 1,000 / volume of the
internal cavity of the shell, during the year of study.
Figura $. Índice de condición de Crosby y Gale (CD): Peso seco de la biomasa x 1000 / volumen de la
cavidad interna de la concha, durante el año de estudio.
DL
TIRADO ET ALz.: Reproduction of Donax trunculus in the littoral of Huelva
Table I. Linear regression calculated for each sample. Lm: mean length; flesh dry weight for a stan-
dard individual; R?: coefficient of determination; R: coefficient of correlation; N: number of speci-
mens; W: monthly flesh dry weight for a standard individual of 29 mm.
Tabla [. Regressión linear calculada para cada muestra. Lm: longitud media; R': coeficiente de deter-
minación; L: coeficiente de correlación; N: número de individuos; W: peso seco de biomasa mensual para
un individuo estándar de 29 mm.
lm Regression lines
Jn] 3127 y=2.3423 x-1.1468
Jn2 31 y= 2.2581x- 1.0263
1 28.15 y=2.3057 x-1.201
12 21.31 y=2.0405 x-0.82724
Al 26.21 y =2.3454x -1.2257
A2 31:19 y=2.2426x-1.0357
Sl 34.57 y=2.5491 -1.5168
92 MS y=2.3769 x-1.2753
0 27.81 y=2.6152x-1.6298
N 250] y=2./123 x-1.6903
D 25.40 y=2.701 x- 1.7035
| 21.58 y = 2.8042 - 1.7363
F 28.09 y =2.8/14x- 1.7802
Mr 29.49 y=2:605X- 1.3919
Mr2 28.62 Y =2.0323%- 11993
Apl 2452 y =2.785x 1.7727
Ap2 29.43 y =2.3754x-1.2251
My] 31.09 y =2.4862x-1.3195
My2 29.54 y = 2.4818x- 1.3567
R R N W(L=29 mm)
0.7171 0.8468 200 66.78
0.8105 0.2003 199 64.46
0.8062 0.8979 198 67.15
0.7073 0.8410 200 58.35
0.8452 0.9193 199 66.79
0.7991 0.8939 197 64.00
0.4281 0.6543 202 12.41
0.2006 0.9490 201 67.65
0.8392 0.9161 199 14.21
0.8741 0.9349 200 16.97
0.8329 0.9126 200 16.62
0.9229 0.9607 200 19.58
0.9071 0.9524 200 81.49
0.8814 0.9388 199 14.15
0.8816 0.9389 200 80.35
0.862 0.9284 199 18,79
0.1727 0.8790 200 67.66
0.7618 0.8728 202 10.78
0.8038 0.8965 199 10.62
small peak in May. The CI index
showed a similar pattern (Fig. 8). The
most important decrease was recorded
from March to April.
The monthly regression lines for
weight-length relationship are shown in
Table L, and the monthly variation of
flesh dry weight for a standard indivi-
dual (W) is represented in Figure 9.
According to these data the population
from Huelva had a relatively synchro-
nous reproductive pattern, with 18
samples (from a total of 19) explaining
70% of the variations of weight by the
length. The pattern of the standard indi-
vidual was similar to that of Cl index.
According to the test of Kolmogorov
Smirnov, only the temperature and
FDW /L* data showed a normal distri-
bution. The coefficients of correlation of
Pearson and Kendall have been calcula-
ted. According to these data, the tempe-
rature is inversely correlated with
FDW /L? (r=0.541p<0.05) and with the
FDW of the standard individual
(tau=0.438, p<0.01). No other correla-
tions were significant.
Gametogenic cycle
The data from the histological study
are presented in Figure 10. Activation of
gonads started in January while the
regression began in the second half of
August with more than 66% of the
population in postactive and cytolized
stages. In October, the whole population
was in cytolized stage.
During the active period, the histolo-
gical data showed continuous spaw-
ning, with percentages higher than 55%
from February to July with three peaks:
first half of April (96.67%), June (100%)
and second half of July (96.67%), while
only 13% of the individuals at the end of
August were spawning. Different stages
in the same gonad and new activation
IÍ
Iberus, 29 (1), 2011
85
80
o
5h 70
E 6
= 60
A ss
50
45
40
Ja A AO SS IO NADIA
F- Mrl Mr2 Ap1 Ap2 My1My2
Figure 9. Variation in flesh dry weight in a standard Donax trunculus animal 29 mm long.
Figura 9. Variación del peso seco biomasa en un animal estándar de Donax trunculus de 29 mm de
longitud.
A A E E e Y
AI A
A A AS
A E A es
A O
A E
A A
A O
SU
%
AS SAO NO E
2 ha hd
E Mrl Mr2 Apl Aps Myl My2
Figure 10. Monthly cumulative frequency of different stages of development of the gonads in D.
trunculus. C: cycolized; Pr: preactive; EA: early active; A: active; S: spawning; Ps: postactive.
Figura 10. Frecuencia mensual acumulada de los diferentes estados de desarrollo de las gónadas en D.
trunculus. C: cicolizado; Pr: preactivo; EA: activo temprano; A: activo; S: en puesta; Ps: postactivo.
without a total regression of the gonad
have been observed in many indivi-
duals.
The resting period started in Septem-
ber and finished in December. At the begin-
ning of this period, it was impossible to
identify the sex of 36% of the individuals,
and in October all the individuals were in
cytolized stage and it was impossible to
identify the sex of 50% of the sample.
DISCUSSION
Sex ratio
The sex-ratio of the population of
Donax trunculus from Huelva agrees
with observations of other authors
regarding this species (Lucas, 1965;
54
MOUEZA AND FRENKIEL-RENAULT 1973,
TIRADO AND SALAS, 1998, DEVAL, 2009,
La VALLE, 2006), but disagrees with the
results obtained in the neighbour popu-
lation of southern Portugal, where
GASPAR ET AL. (1999) found a higher pro-
portion of males in all size classes.
According to the macroscopic identi-
fication of the gonads, the active period is
more extensive in the Atlantic population,
in which it is possible to identify the sex
of the whole population from February to
the end of July (Fig 3), while in the Medi-
terranean population, the gonads are
coloured in the whole sample only in May
and June. Percentages of specimens with
non coloured gonads higher than 70%
were observed from October to February
(TIRADO AND SALAS, 1998)
TIRADO ET AL.: Reproduction of Donax trunculus in the littoral of Huelva
Sexual cycle
Condition index: The wide range of
the standard deviation was partially
related to the presence of different
stages of development of the gonads.
The data for the different condition
indexes of this Atlantic population
showed a long reproductive period,
from December to September, very
similar to those found by BAYED (1990)
in the Atlantic coast of Morocco and by
GASPAR ET AL. 1999 in the South of Por-
tugal, although in the latter there was a
continuous decrease of the index of con-
dition from February to August.
However, there are differences with
the Mediterranean population of
Málaga, in which the most important
and continuous decrease of the index of
condition was observed from April to
June, with an important increase in July.
In the population from Huelva, the
major decrease was recorded from
March to April, with a slight increase in
May, but with continuous decrease
during the summer.
In Turkey, the population studied by
DeEvaL (2000) had a shorter reproductive
period; the spawning occurred from
April to July with a peak between May
and June. This reproductive cycle is
coincident with that of the population of
Málaga. The duration of the reproduc-
tive period of the Turkish and Málaga
populations was similar to that found in
other Mediterranean populations
(ANSELL AND BODOY 1979 in Camargue,
French Mediterranean coast; MÓUEZA
AND [FRENKIEL-RENAULT 1973 in
Algeria), although these were not coinci-
dent in time, due to differences in the
environmental variables.
Gametogenic cycle: The data obtained
point to continuous spawning for
almost the whole population from April
to August, coincident with the decrease
of the index of condition during this
period. The coexistence of different
stages in the same gonad, together with
a direct transformation from a postac-
tive stage to an active one without the
intermediate step of a cytolized stage,
have been reported for other donacids
(DE VILLIERs, 1975, for D. serra; TIRADO
AND SALAS 1998 for D. trunculus in
Málaga; GASPAR ET AL. 1999 in D. truncu-
lus in Faro (Portugal) Tirado and Salas,
1999 for D. venustus and Donax semistria-
tus), or other species, such as Tapes rhom-
boides (see MORVAN AND ANSELL, 1988),
Callista chione (see TIRADO, SALAS AND
LóPEz, 2002) and Venus verrucosa (see
TIRADO, SALAS AND MÁRQUEZ, 2003).
This renewed activation of the gonad
seems to be at the origin of the fluctua-
tions of the indexes of condition during
this period. After the most important
release of gametes at the beginning of
spring, there was new but less intense
spawning by the same individuals in
the same cycle. The occurrence of suc-
cessive individual spawnings has also
been described in the population of the
Adriatic Sea (ZEICHEN ET AL. 2002).
The most important drop of the
indexes of condition occurred between
March and April, with 100% of the
population in spawning, and after an
important increase of chlorophyll a in
March. The strong regression of the
gonad from September to October
(100% of the population in postactive or
cytolized stage) could be related to the
strong decrease of the temperature
(9.5%C). An inverse correlation has been
obtained between temperature and flesh
dry weight (FDW/L and FDW of a stan-
dard individual). The availability of
food in September at the same time as a
maximum of clorophyll 4 could be
advantageous for the storage of reser-
ves, after an extensive spawning period.
This result is also described in the Alge-
rian population (MOUEZA AND FREN-
KIEL-RENAULT, 1973). On the other hand,
the increase of chlorophyll a in March
could be advantageous for the larva
after the highest peak of spawning of
the population from March to April.
According to the histological data,
the Moroccan population of D. trunculus
have three months of resting period
(BAYED, 1990), whereas in the popula-
tion of Huelva there is only one month
(October). Moreover, the percentages of
spawning in the population of Huelva
are around 100%, whereas in the popu-
lation of Morocco the percentages never
SS
Iberus, 29 (1), 2011
reach 50%. The data of the population
from Faro (Portugal) are more similar to
those found in the population of
Huelva, although the whole population
is never in spawning (maximum 80% in
August, GASPAR ET AL., 1999).
According to SCHLACHER ET AL.
(2008) and BROWN AND MCLACHLAN
(2006) the populations from dissipative
beaches have a more extensive repro-
ductive cycle than those from reflective
ones. However, our data on the repro-
duction of D. trunculus from the littoral
of Málaga, collected in reflective
beaches (TIRADO AND SALaAs, 1998)
BIBLIOGRAPHY
ANSELL A.D. AND BODOY A. 1979. Comparison
of events in the seasonal cycle for Donax vit-
tatus and Donax trunculus. In Naylor, E. and
R. G. Hartnoll (Ed.): Cyclic phenomena in ma-
rine plants and animals. Proceedings of the
13th European Marine Biology Symposium.
Pergamon Press, Oxford and New York: 191-
198.
ANSELL A.D. AND LAGARDERE F. 1980. Obser-
vations on the biology of Donax trunculus
and Donax vittatus at lle d'Oléron (French
Atlantic coast). Marine Biology, 57: 287-300.
BADINO G. AND MARCHIONNI V. 1972. Neu-
rosecretion and gonad maturation in a pop-
ulation of Donax trunculus L. from Leghorn
(Italy). Bollettino di Zoologia, 39: 321-326.
BALDACCINI G. AND BIANUCCI P. 1984. Contri-
buto alla conoscenza di Donax trunculus (Bi-
valvia) del litorale versiliese: aspetti tecno-
logici, commerciali e statistici della raccolta.
Nova Thalassia, 6: 441-449.
BAYED A. 1990. Reproduction de Donax trun-
culus sur la cóte Atlantique marocaine. Cahiers
de Biologie Marine, 31: 159-169.
BAYED A. AND GUILLOU J. 1985. Contribution á
l'étude des populations du genre Donax: la
population de D. trunculus L. (Mollusca, Bi-
valvia) de Mehdia (Maroc). Annales de
l'Institut Océanographique, Paris, 61 (2): 139-
147.
BAYNE B.L. 1976. Marine mussels, their ecology and
physiology. International Biological Pro-
gramme. Ed. Cambridge University Press,
441 pp.
BROWN A.C. AND MCLAHLAN A. 2006. Ecology
of sandy beaches (2nd). Elsevier, Amsterdam:
SIP
5Ó
showed a similar extension of the repro-
ductive cycle to that of the population of
Huelva, which lives in a dissipative
beach, but with an offset of three
months between the beginning of the
spawning period in each population.
These results justify the necessity of
taking into account the biology of the
species in a particular area for a better
management of the resources by ruling
different close seasons for the Atlantic
and the Mediterranean populations,
from March to April in the Atlantic
populations and from May to June in
the Mediterranean ones.
CROSBY M.P. AND GALE L. 1990. A review
and evaluation of bivalve condition index
methodologies with a suggested standard
method. Journal of Shellfish Research, 9 (1):
233-237.
DE VILLIERS G. 1975. Reproduction of the sand
mussel Donax serra Róding. Investigational
Reports of the Sea Fisheries Branch of South
Africa, 109: 1-31:
DevaL M.C. 2009. Growth and reproduction
of the wedge clam Donax trunculus in the sea
of Marmara, Turkey. Journal of Applied Ichth-
yology, 25 (5): 551-558.
FISCHER W., BAUCHOT M.L. AND SCHENEIDER M.
1987. Fiches FAO d'identification des especes
pour les besoins de la péche. (Révision 1). Mé-
diterranée et mer Noire. Zone de péche 37.
Vol. IVegetaux et Invertébrés, 760 pp.
GASPAR M.B., FERREIRA R. AND MONTEIRO C.C.
1999. Growth and reproductive cycle of Do-
nax trunculus L., (Mollusca:Bivalvia) off Faro,
southern Portugal. Fisheries Research, 41: 309-
316.
GUILLOU J. AND Le MOAL Y. 1980. Aspects de
la dynamique des populations de Donax vit-
tatus et D. trunculus en baie de Douarnenez.
Annales de l'Institut Océanographique, Paris,
56 (1): 55-64.
GUTIÉRREZ M. 1967. Coloración histológica para
el ovario de peces, crustáceos y moluscos. In-
vestigación Pesquera, 31 (2): 265-271.
JEFFREY S.W. AND HUMPHREY G.T. 1975. New
spectrophotometric equation for determi-
ning chlorophylls a, b, c! and c? in higher
plants, algae and natural phytoplankton. Bio-
chemie und Physiologie der Pflanzen, 167: 191-
194.
TIRADO ET ALz.: Reproduction of Donax trunculus in the littoral of Huelva
LA VALLE P. 2006. Donax trunculus (Bivalvia: Do-
nacidae) quale indicatore biologico degli
equilibri costieri e del bilancio sedimenta-
rio. Doctoral thesis, Universita degli studi
di Roma “La Sapienza”. pp. 1-148, i-xv and
appendix, 1-44.
LORENZEN C.J. AND JEFFREY S.W. 1980. Deter-
mination of chlorophyll in seawater.
UNESCO Technical Papers in Marine Science,
35: 1-20.
LUCcas A. 1965. Recherches sur la sexualité des
Mollusques Bivalves. Bulletin Biologique de la
Prance et de la Belgique, 99: 115-247
MaZÉ R.A. AND LABORDA A.J. 1988. Aspectos
de la dinámica de población de Donax trun-
culus (Linnaeus, 1758) (Bivalvia: Donacidae)
en la ría de El Barquero (Lugo, NO España).
Investigación Pesquera, 52 (3): 299-312.
MORVAN C. AND ANSELL A.D. 1988. Stereolo-
gical methods applied to reproductive cycle
of Tapes rhomboides. Marine Biology, 97: 355-
364.
MOUEZA M. AND FRENKIEL-RENAULT L. 1973.
Contribution a l'étude de la biologie de Do-
nax trunculus L. (Mollusques Lamelli-
branches) dans l'Algérois: la reproduction.
Cahiers de Biologie Marine, 14 (3): 261-283.
MOUEZA M. AND CHESSEL D. 1976. Contribution
a l'étude de la biologie de Donax trunculus L.
(Mollusque, Lamellibranche) dans 1 Algerois:
analyse statistique de la dispersion le long
d'une plage en Baie du Bou-Ismail. Journal of
Experimental Marine Biology and Ecology, 21:
211-221.
NEUBERGER-CYWIAK L., ACHITUV Y. AND MIZ-
RAHI L. 1990. The ecology of Donax truncu-
lus Linnaeus and Donax semistriatus Poli from
the Mediterranean coast of Israel. Journal of
Experimental Marine Biology and Ecology, 134:
203-220.
PASTEUR-HUMBERT C. 1962. Les Mollusques
marins testacés du Maroc. Vol. II. Les La-
mellibranches et les Scaphopodes. Travaux de
l'Institut Scientifique Chérifien, Série Zoolo-
gie, 28, 188 pp.
RAMÓN M., GRACENEA M. AND GONZÁLEZ-MO-
RENO O. 1999. Bacciger bacciger (Trematoda,
Fellocistomidae) infection in commercial
clams Donax trunculus (Bivalvia, Donacidae)
from the sandy beaches of the Western Me-
diterrranean. Diseases of Aquatic Organisms,
35: 37-46.
RICKER W. 1975. Computation and interpreta-
tion of biological statistics of fish popula-
tion. Bulletin of the Fisheries Research Board of
Canada, 191: 1-382.
SABELLI B, GIANUZZI-SAVELLI R. AND BEDULLI
D. 1990. Catalogo annotato dei Molluschi marini
del Mediterraneo. Societa Italiana dei Mala-
cologia, vol 1, 348 pp.
SALAS C., TIRADO C. AND MANJÓN-CABEZA M.E.
2001. Sublethal foot-predation on Donaci-
dae (Mollusca, Bivalvia). Journal of Sea Re-
search, 46: 43-56.
SCHLACHER T.A., SCHOEMAN D.S., DUGAN J.,
LASTRA M. AND JONES A. 2008. Sandy beach
ecosystems: key features, sampling issues,
management challenges and climate change
impacts . Marine Ecology, 29 (Suppl. 1) 70-90
TIRADO C. AND RODRÍGUEZ DE LA RÚA A. 2000.
Estudio del ciclo reproductor de los moluscos bi-
valvos y gasterópodos del litoral andaluz. In-
forme Técnico. Consejería de Agricultura y
Pesca, Junta de Andalucía, 357 pp.
TIRADO C. AND SALAS C. 1998. Reproduction
and fecundity of Donax trunculus L., 1758
(Bivalvia: Donacidae) in the littoral of Málaga
(Southern Spain). Journal of Shellfish Research,
17 (1): 169-176.
TIRADO C. ANDSALASC. 1999. Reproduction of
Donax venustus Poli 1795, Donax semistriatus
Poli 1795 and intermediate morphotypes (Bi-
valvia: Donacidae) in the littoral of Málaga
(Southern Spain). P.S.Z.N.: Marine Ecology, 20
(2): 111-130.
TIRADO C., SALAS C. AND LÓPEZ J.I. 2002. Re-
production of Callista chione (L., 1758) (Bi-
valvia: Veneridae) in the littoral of Málaga
(Southern Spain). Journal of Shellfish Research,
21 (2): 643-648.
TIRADO C., SALAS C. AND MÁRQUEZ Il. 2003. Re-
production of Venus verrucosa L., 1758 (Bi-
valvia: Veneridae) in the littoral of Málaga
(southern Spain). Fisheries Research, 63: 437-
445.
ZEICHEN M.M., AGNESI S., MARIANI A., MAC-
CARONI A AND ARDIZZONE D. 2002. Biology
and Population Dynamics of Donax truncu-
lus L., (Bivalvia: Donacidae) in the South
Adriatic Coast (Italy). Estuarine; Coastal and
Shelf Science, 54: 971-982.
3%
O Sociedad Española de Malacología
Iberus, 29 (1):59-74, 2011
Bittium nanum (Gastropoda, Cerithiidae), una especie
válida de las islas Azores
Bittium nanum (Gastropoda, Cerithiidae), a valid species from the
Azores Islands
Diego MORENO*
Recibido el 20-IV-2011. Aceptado el 19-V-2011
RESUMEN
Se hace una redescripción de la especie del género Bittium Gray, 1847 que constituye
uno de los elementos más abundantes del zoobentos de la zona litoral rocosa en las islas
Azores. La especie ha sido confundida por casi todos los autores con las especies euro-
peas B. reticulatum (da Costa, 1778) o B. latreillii (Payraudeau, 1826) pero se diferencia
suficientemente para considerarse un endemismo del archipiélago. Se propone usar para
ella el binomen Bittium nanum (Mayer, 1864), un nombre olvidado pero nomenclatural-
mente válido y basado en fósiles de una terraza de edad Pleistoceno en Prainha, isla de
Santa María. Este (introducido originalmente en el binomen Cerithiopsis nana Mayer,
1864) es un homónimo primario de Cerithiopsis tubercularis var. nana Jeffreys, 1867, por
lo cual esta última especie debería de ser renombrada o redescrita.
ABSTRACT
A redescription is given for the species of the genus Bittium Gray, 1847 which is one of
the most abundant components of the zoobenthos on rocky shores of the Azores. The
species has been confused by almost all authors with the European species B. reticulatum
(da Costa, 1778) or B. latreillii (Payraudeau, 1826) but differs enough to be considered a
species endemic to the archipelago. lt is proposed to use for this species the binomen Bit
tium nanum (Mayer, 1864), a forgotten but nomenclaturally valid name based on fossils of
a terrace of Pleistocene age in Prainha, Island of Santa Maria. This name (first introduced
in the binomen Cerithiopsis nana Mayer, 1864) is a primary homonym of Cerithiopsis
tubercularis var. nana Jeffreys, 1867, which should be renamed or better described anew.
INTRODUCCIÓN
En las islas Azores vive una especie
del género Bittium Gray, 1847 que cons-
tituye uno de los elementos más abun-
dantes del zoobentos de la zona litoral
rocosa. Sin embargo, no existe un con-
senso acerca del estatus taxonómico de
esta especie, la cual ha sido general-
mente confundida con otras similares
que viven en el litoral de Europa conti-
nental.
El Bittium de las Azores ha recibido
generalmente el nombre de Bittium reti-
culatum (Da Costa, 1778), la especie tipo
del género y el representante del mismo
más ampliamente distribuido y más
común en las costas continentales euro-
peas, por parte de numerosos autores,
siguiendo en ello a Mac ANDREW (1857:
124 y 150). Este nombre se siguió utili-
zando durante muchos años por otros
* c/ Araña, apartamentos Las Dunas 2, 04150 — Cabo de Gata, Almería (España)
39
Iberus, 29 (1), 2011
autores, como JEFFREYS (1885: 57), DAUT-
ZENBERG (1889: 41), NOBRE (1924: 79;
1930: 09) MORTON AO
BULLOCK, TURNER Y FRALICK (1990: 43),
AZEVEDO (1991: 23), HOUBRICK (1993:
274), MORTON, BRITTON Y MARTINS
(1998: 64 y 97). Posteriormente, se citó
provisionalmente como Bittium cf. reti-
culatum por ÁVILA Y AZEVEDO (1997:
326). También ha sido utilizado el
nombre B. reticulatum para los fósiles del
Cuaternario de la isla de Santa María
por ZBYSZEWSKY Y FERREIRA (1962: 215),
GARCÍA-TALAVERA (1990: 440) y CALLA-
PEZ Y SOARES (2000: 314). También, ha
sido considerada como Bittium depaupe-
ratum (Watson, 1897) por NORDSIECK
(1976: 7) y NORDSIECK Y GARCÍA-TALA-
VERA (1979: 90).
El nombre Bittium latreillii (Payrau-
deau, 1826), ha sido sugerido para la es-
pecie de Azores por VERDUIN (1976: 135)
y, más recientemente, por ÁVILA, AMEN,
AZEVEDO, CACHAO Y GARCÍA-TALAVERA
(2002: 349), ÁvILA, CARDIGOS Y SANTOS
(2004: 77; 2007: 46-47) y ÁVILA, SANTOS,
PENTEADO, RODRIGUES, QUINTINO Y MA-
CHADO (2005: 73). Por último, MARTINS,
BORGES, ÁVILA, COsTa, MADEIRA Y MOR-
TON (2009: 58) mencionan la especie co-
mo Bittium cf. latreilli1, y citan también a
B. latreilliií como muy raro frente a Vila
Franca do Campo en la isla de Sáo Mi-
guel a 180 m de profundidad. La dudas
en la asignación de un nombre a la espe-
cie han hecho que se haya quedado co-
mo Bittium sp. por algunos autores, co-
mo ÁvILA (1998: 483; 2000: 102), ÁvILA,
AZEVEDO, GONCALVES, FONTES Y CARDI-
GOS (1998: 493; 2000: 144) y CosTA Y Ávr-
LA (2001: 120, 124).
El objeto de este trabajo es aportar
una descripción detallada del Bittium de
las Azores y de mostrar que se trata de
una especie distinta a las que viven en
las costas europeas. En un principio se
había contemplado su descripción como
especie nueva (MORENO, 1998, no publi-
cado en el sentido de la CINZ). En una
posterior revisión bibliográfica realizada
en el Muséum National d' Histoire Natu-
relle de París (MNHN) se pudo hallar
para la misma un nombre disponible,
aunque caído en el olvido, basado en un
60
fósil del Cuaternario de la isla de Santa
María y originalmente publicado en el
binomen Cerithiopsis nana Mayer, 1864.
La descripción de Mayer es explícita y la
figura es suficiente para reconocer la
especie, que ÁVILA, AMEN, AZEVEDO,
CACHAO Y GARCÍA-TALAVERA (2002) han
vuelto a encontrar en su localidad tipo
aunque identificada como Bittium latrei-
Ilii. El nombre ha sido ignorado por
autores posteriores, con la única excep-
ción de GARCÍA-TALAVERA (1990) quien
se limita a repetir la cita original de
Mayer sin relacionarla con el Bittium de
su propio material (identificado p. 440
como Bittium reticulatum).
Pese a ello, se considera que la falta
de uso para este nombre se debe a la
falta de atención para la especie o a su
confusión con otras especies, no al uso
acostumbrado de un sinónimo frente al
nombre nomenclaturalmente válido.
Tampoco ha sido rechazado como
“nomen oblitum” durante el periodo de
vigencia de dicho concepto (1961-1973,
artículo 23b de la edición de 1961 del
CINZ). Por lo tanto, se propone la nueva
combinación Bittium nanum (Mayer,
1864) como el nombre válido para el
Bittium de las Azores.
Cerithiopsis nana Mayer, 1864 es un
homónimo primario con respecto a
Cerithiopsis tubercularis var. nana Jeffreys,
1867, un nombre en uso para una
especie taxonómicamente válida del
género Cerithiopsis (familia Cerithiopsi-
dae). Recientemente, CECALUPO Y
ROBBA (2010), designaron Cerithiopsis
nana Jetfreys, 1867 como especie tipo de
un género nuevo, Nanopsis Cecalupo y
Robba. Los mismos autores anuncian su
intención de solicitar a la CINZ que
suprima el nombre más antiguo de
Mayer (1864). Esta acción no parece
deseable al tratarse del nombre poten-
cialmente válido de otra especie y, como
solución alternativa para el problema
nomenclatural, se debería contemplar el
renombrar o redescribir Cerithiopsis nana
Jeffreys, 1867.
El nombre Cerithiopsis nana Mayer,
1864 es homónimo secundario de Cerit-
hium tuberculare var. nanum Wood, 1848,
actualmente considerado como una
MORENO: Bittium nanum, una especie válida de las islas Azores
especie del género Cerithiopsis (Marquet,
1997). Sin embargo, al no haberse reem-
plazado y al no considerarse especies
congenéricas en la actualidad, se aplica
el artículo 59.2 del CINZ según el cual
bajo estas circunstancias “el nombre
más moderno no debe rechazarse,
incluso si uno de los nombres de nivel
especie se propuso originalmente en el
género actual del otro”.
Resulta sorprendente que un
nombre específico tan trivial como
nanum no resulte preocupado en combi-
nación con el nombre genérico Bittium,
pero este parece ser el caso. En la misma
familia hallamos a Cerithium nanum C.B.
Adams, 1850, actualmente considerado
como perteneciente en la familia Tripho-
ridae y sin uso como nombre válido, por
lo tanto ni homónimo primario ni
secundario; este nombre preocupa a
Cerithium nanum Pallary, 1912 (un Ceri-
thium del grupo de C. vulgatum Bru-
guiere, 1792).
SISTEMÁTICA
Bittium nanum (Mayer, 1864) comb. nov. (Figs. 1-32)
Cerithiopsis nana Mayer, 1864. Syst. Verz. der foss.: 66-67, lám.6, fig. 46 [citado por error fig. 49 en
el texto].
Material estudiado: se han estudiado un total de 6.358 ej., todos procedentes de las islas Azores:
Banco Joáo do Castro: St. 1, 1971, 7 ej., máx. 5,0 mm, MNHN, mission Biacores, 40-50 m, Faial:
Castelo Branco, jul-79, 5 ej., máx. 3,5 mm, MNHN, col. Zibrowius, 28 m; Castelo Branco, St. P-11,
1971, 15 ej. máx. 3,0 mm, MNHN, mission Biacores, 5-7 m; Horta, St. 29, 1971, 34 ej., máx. 2,5 mm,
MNHN, mission Biacores, 2-3 m; Horta, St.L-9, 1971, 5 ej., máx. 2,0 mm, MNHN, mission Biacores,
3 m; Horta, St. P-13, 1971, 10 ej., máx. 5,0 mm, MNHN, mission Biacores, 17 m; Monte da Guia, jul-
79, 6 ej., máx. 4,5 mm, MNHN, Zibrowius, 47-60 m; Monte da Guia, St.P-19, 1971, 17 ej., máx. 4,5
mm, MNHN, mission Biacores, 4 my St. L- 8, 1971, 1 ej., máx. 5,8 mm, MNHN, mission Biacores, 8
m; St. L-11, 1971, 12 ej., máx. 8,0 mm, MNHN, mission Biacores, 2-4 m; St. P-13, 1971, 4 ej., máx. 2,0
mm, MNHN, mission Biacores, 3-4 m;, Flores: I. Muda, St. P-24, 1971, 8 ej., máx. 4,0 mm, MNHN,
mission Biacores, 24 m, 5. Cruz de Flores, 1989, 300 ej., máx. 4,0 mm, MNHN, Exp. Flores, col. Gofas,
20 m; S. Cruz de Flores, 1989, 1 ej., máx. 7,0 mm, MNHN, Exp. Flores, col. Gofas, 1 m; S. Cruz de
Flores, 1989, 1000 ej., máx. 6,0 mm, MNHN, Exp. Flores, col. Gofas, 20 m; S. Cruz de Flores, 1989,
1000 ej., máx. 7,0 mm, MNHN, Exp. Flores, col. Gofas, 20 m; Formigas: (E) St. P-44, 1971, 3 ej., máx.
4,0 mm, MNHN, mission Biacores, 35-45 my (E) St. P-44, 1971, 13 ej., máx. 4,5 mm, MNHN, mission
Biacores, 43 m; (W) St. P-43, 1971, 4 ej., máx. 5,5 mm, MNHN, mission Biagores, 15 m; Pico: Lajes
do Pico, 04/07/1995, 6 ej., máx. 9,5 mm, col. D. Moreno, 1 my Lajes do Pico, 04/07/1995, 18 ej., máx.
8,5 mm, col. D. Moreno, 1 m; Lajes do Pico, 04/07/1995, 7 ej., col. D. Moreno, 1 m, Lajes do Pico,
04/07/1995, 10 ej., máx. 9,5 mm, col. D. Moreno, 1 m;, Lajes do Pico, 04/07/1995, 41 ej., máx. 9,0
mm, col. D. Moreno, 1 m; S. Roque, 02/07/1995, 15 ej., col. D. Moreno, 6 m; S. Maria: P. Malbusca,
O1/10/19712 ej., máx. 5,5 mm, MNHN, mission Biacores, 12-25 m; P. Malbusca, St.P-3, 1971, 5 ej.,
máx. 3,5 mm, MNHN, mission Biacores, 30 m; Ponta Marváo, jun-90, 41 ej., máx. 7,5 mm, MNHN,
col. S. y C. Gofas, 0-1 m; Praia Formosa, jun-90, 300 ej., máx. 7,0 mm, MNHN, col. S. y C. Gofas, 0
m; Vila do Porto, jun-90, 3 ej., máx. 6,5 mm, MNHN, col. S. y C. Gofas, 0-1 m; Vila do Porto, jun-
90, 52 ej., máx. 6,0 mm, MNHN, col. Gofas y Azevedo, 9 m;, Vila do Porto, jun-90, 300 ej., máx. 9,0
mm, MNHN, col. Gofas y Azevedo, 6 m; Sáo Miguel: Agua d'Alto, jul-88, 9 ej., MNHN, col. Gofas,
50 m; Caloura, B. Areia, jul-88, 111 ej., máx. 7,0 mm, MNHN, col. Gofas, 15 m; Caloura, Pta. Galera,
jul-79, 3 ej., máx. 4,0 mm, MNHN, col. Zibrowius, 15 m; Caloura, Pta. Galera, 10/07/1983, 8 ej.,
máx. 4,0 mm, MNHN, col. Bouchet et al., 20 m; Caloura, Pta. Galera, 10/07/1983, 300 ej., máx. 6,3
mm, MNHN, col. Bouchet et al., 20 m; Caloura, Pta. Galera, jul-88, 500 ej., máx. 7,0 mm, MNHN,
Gofas, 13-18 m; Caloura, Pta. Galera, 29/06/1995, 58 ej., máx. 5,0 mm, col. D. Moreno, 20 m; Capelas,
St. P-5, 1971, 8 ej., máx. 3,0 mm, MNHN, mission Biacores, 12 m; Capelas, M. St.P-41, 1971, 40 ej,
máx. 5,5 mm, MNHN, mission Biacores, 29 m, Feteiras, jul-88, 500 ej., máx. 6,0 mm, MNHN, col.
Gofas, 15-24 m;, Lagoa, jul-88, 500 ej., máx. 6,5 mm, MNHN, col. Gofas, Infralitoral; Ponta Delgada,
09/07/1983, 300 ej., máx. 6,0 mm, MNHN, col. Bouchet, et al., 10-20 m; Ponta Delgada, jul-88, 53
61
Iberus, 29 (1), 2011
ej., máx. 8,0 mm, MNHN, col. Gofas, 0 m; Ponta Delgada, St.P-29, 1971, 3 ej., máx. 3,5 mm, MNHN,
mission Biacores, 12 m; Ponta Piramide, jul-88, 300 ej., máx. 5,0 mm, MNHN, col. Gofas, 13 my St.
P-32, 1971, 12 ej., máx. 4,3 mm, MNHN, mission Biacores, 7 m; Vila Franca, jul-88, 100 ej., máx. 4,0
mm, MNHN, col. Gofas, 10 m; Vila Franca, jul-88, 57 ej., máx. 8,0 mm, MNHN, col. Gofas, 0-5 m;
Vila Franca, Ilheu, jul-88, 113 ej., máx. 7,5 mm, MNHN, col. Gofas, 0-1 m; Vila Franca, Ilheu,
29/06/1995, 88 ej., máx. 4,5 mm, col. D. Moreno, 15 m;, Vila Franca, St.P-36, 1971, 21 ej., máx. 6,0
mm, MNHN, mission Biacores, 24 m; Terceira: P. Diego, St. P-7, 1971, 22 ej., máx. 5,0 mm, MNHN,
mission Biacores, 40 m;, St. P-7, 1971, 7 ej., máx. 4,3 mm, MNHN, mission Biacores, 39-40.
Redescripción: La concha (figs. 1-7) es
pequeña, de unos 6 a 9 mm en los
adultos, 9,5 mm es el máximo medido
en el material estudiado (6.358 ejempla-
res). Sin embargo, existen ejemplares
aislados que superan los 10 mm ($.
ÁVILA, com. pers.). Los adultos tienen
unas 10 vueltas de espira. La superficie
está surcada por numerosas costillas
espirales y axiales que, al encontrarse,
forman un pequeño tubérculo. El
número de costillas espirales es de 5 Ó 6.
Los adultos más pequeños tienen 5, pero
los más grandes tienen 6 en la vuelta del
cuerpo o en la anterior.
La formación de las costillas espira-
les es muy similar a la conocida para B.
latreillii (VERDUIN, 1976) pero algo más
rápida, por ello tienen una 6* costilla. El
origen de las distintas costillas espirales
es el siguiente. La 3* costilla (en el
tiempo, no por su posición) se forma en
posición subsutural, aproximadamente
en la primera o segunda vuelta de la
teleoconcha, y rápidamente alcanza en
tamaño a las anteriores. Posteriormente,
la 4* costilla comienza a formarse por
debajo de la 3* costilla o subsutural,
aproximadamente en la tercera vuelta
de espira (Figs. 5 y 6), antes que en B.
latreillí1. La 5* costilla nace por debajo de
la 3% o subsutural, aproximadamente en
la sexta vuelta de espira de la teleocon-
cha (Fig. 6). Por último, la 6* costilla
espiral nace igual que las anteriores, por
debajo de la 3? o subsutural, aproxima-
damente en la novena o décima vuelta
de espira. La microescultura de la
superficie de la concha es similar a la
conocida para B. reticulatum y B. latreilli1,
con microtubérculos en los espacios
intercostales (espirales) y pequeñas cavi-
dades en las costillas (Fig. 7).
El número de costillas axiales, que
también es más numeroso que en B.
latreillit, es de 24 a 28 en la vuelta del
cuerpo o en la anterior. Las costillas son
finas, ortoclinas en las primeras vueltas
de la teleoconcha y prosoclinas u opisto-
cirtas en las últimas. Los tubérculos que
se forman al cruzarse las costillas axiales
con las espirales son brillantes, redonde-
(Página derecha) Figuras 1-11. Bittium nanum. Conchas, microescultura al MEB y opérculo. 1, 2:
conchas de Lajes do Pico, Is. Pico, Azores (4/V11/1995) (8,1 y 7,4 mm de longitud); 3, 4: conchas
de Marváo, Is. Santa María, Azores (V1/1990) (8 y 7 mm); 5: formación de la 42 costilla espiral
(flecha) y microescultura, S. Roque do Pico, Is. Pico (2/VI1/1995); 6: concha juvenil mostrando la
formación de la 42 y 52 costillas espirales (flechas), S. Roque do Pico, ls. Pico (2/V11/1995); 7:
detalle de la microescultura de la concha, S. Roque do Pico, Is. Pico (2/V11/1995); 8, 9: conchas
con pérdida de la escultura, Lajes do Pico, Is. Pico (4/V11/1995) (6 y 5,7 mm); 10: concha juvenil
mostrando la pérdida de escultura, S. Roque do Pico, ls. Pico (2/V11/1995); 11: opérculo, Lajes do
Pico, Is. Pico (4/V11/1995).
(Right page) Figures 1-11. Bittium nanum. Shells, SEM of microsculpture and operculum. 1, 2: shells
from Lajes do Pico, Pico Is., Azores (4/VI1/1995) (8.1 and 7.4 mm in length); 3, 4: shells from
Marváo, Santa Maria ls., (VI/1990) (8 and 7 mm); 5: formation of the 4' spiral rib (arrow) and
microsculpture, S. Roque do Pico, Pico Is. (2/V1/1995); 6: juvenile shell showing the formation of the
4” and 5” ribs spirals (arrows), S. Roque do Pico, Pico ls. (2/VI/1995); 7: detail of shell microsculp-
ture, S. Roque do Pico, Pico ls. (2/VH/1995); 8, 9: shells with loss of sculpture, Lajes do Pico, Pico l.,
(4/VI1/1995) (6 and 5.7 mm); 10: juvenile shell showing loss of sculpture, S. Roque do Pico, Pico l.
(2/VI/1995); 11: operculum, Lajes do Pico, Pico Is. (4/VH/1995).
62
álida de las islas Azores
1ttium nanum, una especie v
B
MORENO
63
Iberus, 29 (1), 2011
ados, se encuentran muy próximos unos
a otros y son muy uniformes. Como en
las demás especies del género, las costi-
llas axiales no continúan en la base.
Las costillas espirales de la base son
lisas, unas 6 ó 7 en los adultos. Las dos
adapicales suelen ser más fuertes, segui-
das de una 3* más débil que la 4”. Las
últimas van haciéndose más débiles
hasta la columela.
Con respecto a la escultura de la
concha, una característica que hay que
destacar, por ser muy peculiar, es la
existencia de numerosos ejemplares que
la pierden totalmente en alguna fase de
su crecimiento o en la mayor parte de la
teleoconcha (Figs. 8, 9, 10, 24, 29, 30 y
32). Estas espiras suelen desviarse con
frecuencia del eje de la columela, con lo
que el perfil de la concha se hace irregu-
lar. Dicho crecimiento deforme, que no
parece afectar al normal desarrollo del
animal, no se encuentra aislado en
determinadas poblaciones, puesto que
se ha encontrado en numerosas localida-
des de distintas islas y podría estar pre-
sente en todo el archipiélago (es muy
frecuente, al menos, en las islas de Pico,
S. Miguel y S. María). HOUBRICK (1993)
no hace referencia en ningún momento
a esta alteración en el crecimiento, que
parece ser propio de B. nanum, y no se
ha observado o no se conoce en otras
especies del género.
Cuando la escultura se pierde, las
conchas aparecen más o menos lisas, sin
costillas espirales, costillas axiales ni
microescultura, y con aspecto deforme,
muy tosco (Figs. 8, 9 y 29). En primer
lugar podría pensarse que se trata de
conchas rodadas, pero no es así al
haberse observado en individuos vivos
y en conchas frescas. También se podría
pensar que se trata de una degeneración
o de alguna malformación, debida
quizás al aislamiento genético que sufre
la especie en su conjunto O cada una de
sus distintas poblaciones insulares, pero
no parece ser así, puesto que muchos
individuos que sufren esta pérdida de
escultura vuelven a recuperarla en fases
sucesivas. Así, encontramos ejemplares
con concha normal, seguida por unas
vueltas de espira (1-3 vueltas) sin escul-
64
tura, y, de nuevo, vueltas con escultura
normal (Figs. 24 y 30). Probablemente se
trate de un morfo más, que se presenta
en un número elevado de individuos y
que es favorable en ciertas circunstan-
cias para el camuflaje del animal. Estos
ejemplares deformes presentan un
ombligo incipiente (Figs. 8, 9 y 10), que
no se encuentra en las conchas de creci-
miento normal.
El perfil general de las vueltas de
espira en las conchas de crecimiento
normal con escultura es bastante recto,
pero no tan marcado como en B. latreilliz.
El perfil general de la concha no es tan
triangular como en B. latreillii, sino lige-
ramente pupoide, con las primeras
vueltas de bordes divergentes y las
últimas con bordes cada vez más parale-
los. La periferia de la concha en los
ejemplares que han perdido la escultura
espiral, como ya se ha comentado, es
totalmente irregular.
La abertura es ligeramente ovalada,
con el labio externo apenas engrosado
en los adultos, aunque aumenta en
dimensiones y vuelo, pero de forma
menos marcada que en B. latreillii. La
especie posee varices, sobre todo los
ejemplares de mayor tamaño en la
vuelta del cuerpo
El color de fondo de la concha es
uniforme, pardo claro o castaño (Figs.
26-30 y 32). Los tubérculos suelen distin-
guirse muy bien, pues son de color
claro, ya sea su tono natural o acen-
tuado por una ligera erosión de los
puntos más sobresalientes de la concha.
Es frecuente que, como en B. latreillii,
algunos tubérculos estén pigmentados
de blanco, principalmente a lo largo del
cordón subsutural, aunque también en
todos los tubérculos que constituyen
una costilla axial determinada o en
tubérculos sueltos en cualquier posición.
Las costillas espirales de la base suelen
estar pigmentadas de blanco y castaño,
intermitente, muy marcado en las dos
costillas adapicales.
La protoconcha de B. nanum (Figs.
12-16) es muy similar a la B. latreillii, lo
que confirma el estrecho parentesco
entre ambas especies, ya observado al
estudiar la teleoconcha. Tanto las
MORENO: Bittium nanum, una especie válida de las islas Azores
Figuras 12-19. Bittium nanum. Protoconcha y rádula al MEB. 12-16: S. Roque do Pico, ls. Pico,
Azores (2/VI1/95); 17-19: Lajes do Pico, Is. Pico (4/V11/1995). 12: protoconcha con borde sinusí-
gero roto; 13, 14: protoconcha completa; 15, 16: microescultura y detalle; 17: rádula completa;
18, 19: varias filas de la rádula con los dientes marginales cerrados y abiertos.
Figures 12-19. Bittium nanum. SEM of protoconch and radula. 12-16: S. Roque do Pico, Pico l».,
Azores (2/VI1/95); 17-19: Lajes do Pico, Pico ls. (4/VH/1995). 12: protoconch with broken sinusigera
rim; 13, 14: complete protoconch; 15, 16: microsculpture and detail; 17: complete radula; 18, 19:
several rows of'the radula with closed and open marginal teeth.
65
Iberus, 29 (1), 2011
dimensiones de la protoconcha en su
conjunto (385 um: n= 4), como la presen-
cia de dos costillas espirales en la última
vuelta de la protoconcha II y una micro-
escultura con tubérculos patentes, es
prácticamente igual a la observada de B.
latreilli1. Sin embargo, existen algunas
ligeras diferencias. La anchura de la pro-
toconcha es algo mayor en esta especie
(media de 289 um: n= 4) que en B. latrei-
1lii (media de 260 um; n= 7). Los tubér-
culos son de base ovalada, de entre 7 y 9
um de diámetro mayor (Figs. 15 y 16),
algo más grandes que los de B. latreilliz.
Entre estos tubérculos hay otros diminu-
tos, de unos 0,2 um (Fig. 16), que están
también presentes en B. latreillii.
El animal de B. nanum (Figs. 20-24,
26, 28 y 32) es similar al de otras espe-
cies del género, tanto en forma como en
pigmentación. Los tentáculos cefálicos
son más largos que el morro y el borde
del manto posee papilas. Las hembras
en la época de reproducción presentan
un ovopositor desarrollado (Fig. 20:
ovp). El color de fondo es pardo claro,
sobre el que se disponen manchas de
color pardo oscuro, principalmente en la
cabeza y dorso, y puntos de color blanco
Opaco, dispersos por toda la superficie
(Figs. 26, 28, 32). Los tentáculos tienen
manchitas oscuras y blancas en los
bordes y centro, con frecuencia, de color
rojizo, como en B. latreilli1. El extremo de
los tentáculos tiene manchas blancas.
Existe una mancha amarillenta detrás
del ojo, oculta por manchas oscuras más
superficiales. En la base del morro, que
es la zona más oscura, se distingue con
dificultad, por transparencia, el bulbo
bucal, que es anaranjado. Los labios son
de color claro con puntos blancos. El
propodio está poco pigmentado de
oscuro en el dorso y posee pequeñas
manchas en el centro. Los bordes latera-
les del propodio tienen pequeñas
papilas redondeadas pigmentadas de
blanco. El surco ciliado derecho es más
pálido que las áreas próximas. El borde
del manto tiene manchitas de color
pardo entre las papilas, que no poseen
manchas blancas. Más internamente, el
manto tiene una banda amarilla paralela
al borde. Los lóbulos del opérculo, a
66
ambos lados del animal, poseen una
gran mancha de color blanco, como en
B. latreillii. El pie es blanquecino con
puntos blancos y la suela es de color
crema con dos bandas internas amari-
llentas paralelas junto a los bordes y
numerosos puntos blancos por toda su
superficie.
La rádula de B. nanum (Figs. 17-19)
es muy similar a la de B. reticulatum y a
la de B. latreillii. Su longitud, en ejem-
plares adultos de entre 8 y 9 mm de lon-
gitud de concha, es de poco más de 900
um y tiene unas 40 filas de dientes. El
diente raquídeo tiene entre 2 y 3 dentí-
culos a cada lado del diente central. El
diente lateral tiene entre 1 y 2 cúspides
en la cara interna y entre 3 y 7 en la
externa. El diente marginal externo tiene
entre 3 y 5 dentículos en la cara interna
y entre 3 y 7 en la externa. Por último, el
diente marginal externo tiene entre 3 y 9
cúspides en el lado interno, mientras
que el externo es liso. .
Comentarios: Bittium latreillii es una
especie de amplia distribución en las
costas europeas, desde el Golfo de
Vizcaya hasta el Sahara Occidental,
incluyendo Madeira y Canarias, y todo
el Mediterráneo, que vive en fondos
infra- y circalitorales. Es similar a B.
latreillii, pero posee una concha más
pequeña (hasta unos 10 mm), con un
perfil más redondeado, a veces cirtoco-
noide. La protoconcha de B. nanum es
más ancha y con tubérculos más
grandes que la de B. latreillii. No es de
extrañar que en las islas Azores, además
de la especie endémica y de amplia dis-
tribución en el archipiélago, B. nanum se
pueda encontrar alguna población
aislada de B. latreillii, como parecen
haber demostrado MARTINS ef al. (2009)
que podría provenir de Madeira o de la
costa europea continental, gracias a las
larvas planctotróficas que pueden reco-
rrer grandes distancias en el mar.
Otros autores, como NORDSIECK (1976)
y NORDSIECK Y GARCÍA-TALAVERA (1979),
han utilizado para esta especie el nombre
Bittium depauperatum (Watson, 1897). Sin
embargo, B. depauperatum fue descrito por
WATSON (1897) para Madeira. Se han con-
sultado 3 sintipos de Bittium depauperatum
MORENO: Bittium nanum, una especie válida de las islas Azores
Figuras 20-24. Bittium nanum. Anatomía externa. 20-22. Lajes do Pico, Is. Pico, Azores
(4/V11/1995). 20: hembra mostrando el ovopositor (ovp); 21: animal visto desde el lado izquierdo;
22: pigmentación de la cabeza, de los tentáculos cefálicos y del propodio; 23: pigmentación del
animal, vista ventralmente. S. Cruz, Ís. Flores, Azores (1989, MNHN) (Dibujo de S. Gofas); 24:
ejemplar con concha que ha perdido la escultura y que ha vuelto a recuperarla. Ponta Piramide, ls.
S. Miguel, Azores (V11/88, MNHN) (dibujo de S. Gofas con algunas modificaciones).
Figures 20-24. Bittium nanum. External anatomy. 20-22. Lajes do Pico, Pico ls., Azores
(4/VI1/1995). 20: female showing the ovipositor (ovp); 21: animal viewed from the left side; 22: pig-
mentation of the head, cephalic tentacles and propodium; 23: pigmentation of the animal, ventral view.
S. Cruz, Flores Ís., Azores (1989, MNHN) (Drawing by S. Gofas); 24: specimen with shell sculpture
interrupted and later recovered. Ponta Piramide, S. Miguel ls., Azores (VIL/88, MNHN) (drawing by
S. Gofas with some modifications).
67
Iberus, 29 (1), 2011
(Watson, 1897) del Natural History
Museum de Londres, y se trata de una
especie con protoconcha pauciespiral, no
multiespiral como la especie de Azores.
Datos anteriores: La única descripción
previa conocida de la concha es la de
HOUBRICK (1993: 274, fig. 3, A, B y C),
pero al considerar todas las especies de
Bittium del Atlántico oriental y Medite-
rráneo como una sola (B. reticulatum),
parte de la descripción y algunas de las
ilustraciones se refieren a la especie de
Azores, mientras que otros datos e ilus-
traciones están basados en otras pobla-
ciones del continente. Así, sus figuras 3
A, B y €, corresponden a la especie de
Azores (S. Miguel), mientras que las
figuras 3 D, E y H, corresponden a B.
reticulatum, las dos primeras fotografías
a un ejemplar procedente de Túnez,
mientras que la última se trata de un
juvenil del que no da la localidad. En los
datos de su descripción, la talla que
señala corresponde, probablemente a
datos bibliográficos, puesto que da 15
mm de longitud máxima, cuando la
especie de Azores no suele superar los
10. Sin embargo, los datos sobre las cos-
tillas espirales sí coinciden con la
especie de Azores (“5 costillas espirales
principales en la vuelta del cuerpo”).
El material que utilizó HOUBRICK
(1993: 281) en su revisión de la subfamilia
Bittiinae para estudiar la anatomía del
género Bittium era de las islas Azores, y
por tanto corresponde con la especie que
aquí nos ocupa. Este autor, aunque
conocía la variabilidad de Bittium reticula-
tum, y que algunos autores consideraban
a las poblaciones de las islas Azores como
distinta a B. reticulatum, y que por tanto
en aguas europeas existe un complejo de
especies, consideró a todas ellas en
sentido amplio (sensu lato) como una sola:
B. reticulatum. HOUBRICK (1993: 282)
utilizó como argumento para considerar
el complexo de especies de B. reticulatum
como una única especie el hecho de que
la anatomía conocida hasta ahora de
otras poblaciones, como la de JOHANSSON
(1947) o los bocetos realizados por
Ponder de ejemplares de Suecia (PONDER,
in litt.) correspondían básicamente con
las observaciones realizadas sobre su
material de Azores.
Las conchas que seleccionó Hou-
BRICK (1993) para ilustrar a B. reticulatum
tenían distintas procedencias y corres-
pondían a diferentes especies. En con-
creto, las figuras 3 A, B y C correspon-
den a Bittium nanum y proceden de la
isla de Sáo Miguel (Azores), mientras
que el resto son de Bittium reticulatum y
son de Túnez (fig. 3 D y E), o no se
indica procedencia (fig. 3 H).
La protoconcha que describe e
ilustra HOUBRICK (1993: 274, Fig. 3 G)
para B. reticulatum corresponde real-
mente a esa especie. Aunque dicho
autor trabajó material de Azores donde
no vive B. reticulatum, el ejemplar que
utilizó para describir e ilustrar la proto-
concha (sin detallar localidad), procede
sin duda del continente, pues posee una
superficie lisa. Además, la protoconcha
ilustrada por reste autor no se observa
(Página derecha) Figuras 25-32. Bittium nanum. Hábitat y animales vivos. 25-30. Lajes do Pico, ls.
Pico, Azores (4/V11/1995). 25: laguna costera en Lajes do Pico; 26-28: animales vivos; 29: ejem-
plar con concha de escultura normal (abajo) y ejemplar con concha sin escultura (arriba); 30:
ejemplar con concha que ha perdido la escultura normal y la ha vuelto a recuperar posteriormente;
31: hábitat en arena gruesa junto a Ervilia castanea, -15 m, lheu de Vila Franca, Is. Sáio Miguel
(29/V1/1995); 32: ejemplar con concha que ha perdido la escultura, Ilheu de Vila Franca, Is. Sáo
Miguel (29/V1/1995).
(Right page) Figures 25-32. Bittium nanum. Living animals and habitats. 25-30. Lajes do Pico, Pico
ls., Azores (4/V11/1995). 25: coastal lagoon in Lajes do Pico; 26-28: living animals; 29: specimen with
normal shell sculpture (below) and other with no shell sculpture (above); 30: specimen in which normal
shell sculpture has been lost and. later recovered; 31: habitat in coarse sand with Ervilia castanea, -15
m, Ilheu de Vila Franca, Sáo Miguel ls. (29/V1/1995); 32: Specimen in which normal shell sculpture
has been lost, lheu de Vila Franca, Sáo Miguel ls. (29/V1/1995).
68
MORENO: Bttium nanum, una especie válida de las islas Azores
Iberus, 29 (1), 2011
en su totalidad, debido a que la abertura
de la misma queda oculta por la concha.
El animal de B. nanum (Figs. 20-24,
26, 28 y 32) fue descrito e ilustrado con
mucho detalle por HOUBRICK (1993: 276,
fig. 4). El opérculo ilustrado por Hou-
BRICK (1993: 276, fig. 3 f) para B. reticula-
tum, podría corresponder a B. nanum,
aunque de nuevo este autor no detalla la
localidad. En base a material procedente
de las islas Azores recogido durante el
presente estudio, el opérculo (Fig. 11) es
muy similar al conocido para otras espe-
cies del género, con forma ligeramente
ovalada, núcleo excéntrico, superficie
lisa y última vuelta más estrecha que el
resto del opérculo. La impresión muscu-
lar es algo más larga que la mitad de la
longitud del opérculo.
La anatomía descrita en detalle por
HOUBRICK (1993) para B. reticulatum
corresponde realmente a B. nanum. Esta
fundamental aportación de dicho autor
se basa en disecciones y cortes histológi-
cos de material recogido vivo por él
durante el “Workshop” celebrado en
Sáo Miguel (Azores) en julio de 1988.
Las observaciones realizadas para esta
tesis coinciden plenamente con las reali-
zadas por dicho autor. De la descripción
de HOUBRICK (1993) destaca el detallado
estudio del sistema reproductor. El ovi-
ducto paleal está compuesto por dos
láminas gruesas. En la lámina media se
encuentran la bursa y el receptáculo
seminal, y en la lámina lateral se
encuentra el surco de lamelas ciliadas y
el receptáculo del espermatóforo (que él
llama bursa). Todo es muy similar a lo
descrito para B. reticulatum por JOHANS-
SON (1947). La completa descripción de
la especie realizada por HOUBRICK
(1993) coincide en casi todo con las
observaciones efectuadas en el presente
trabajo. Dicho autor ilustra (Fig. 4 d) los
ganglios bucales en posición dorsal res-
pecto al bulbo bucal, lo que debe tra-
tarse de un error ya que su posición real
es ventral.
HOUBrICK (1993: 276-278, Tabla. 2 y
Fig. 5) ofrece datos contradictorios sobre
la rádula; no coincide lo que describe con
lo que se ve en las fotografías que presenta,
aunque los valores indicados entran dentro
7O
de la variabilidad del material propio, pro-
cedente de la isla Pico.
Las puestas fueron descritas por
HOUBRICK (1993), se supone que basán-
dose en el material obtenido por él en
julio de 1988 en Azores. Nosotros no las
hemos observado. HOUBRICK (1993: 279)
dice: “Puesta constituida por un cordón
gelatinoso fino (de unos 25 mm de lon-
gitud estirado) en ajustada espiral en el
sentido de la agujas del reloj o doblado
sobre sí mismo de forma irregular y
fijada al sustrato. Cordón gelatinoso que
contiene muchos huevos opacos peque-
ños (de 0.65 um de diámetro) [sic, por 65
um] cada uno dentro de una fina, trans-
parente y hialina cápsula (de 110 um de
diámetro). Toda la puesta contiene unos
800 huevos”.
Hábitat y distribución: El hábitat de B.
nanum es preferentemente infralitoral.
La especie es muy abundante en todo el
archipiélago de Azores donde vive
desde fondos muy someros hasta 50 m
de profundidad (ejemplares recogidos
vivos). Algunas conchas estudiadas pro-
ceden de hasta 60 m, pero no correspon-
den con material fresco. En la bibliogra-
fía se indica que se ha encontrado vivo
hasta una profundidad de 38 m y
conchas hasta 360 m (MARTINS ET AL.,
2009). Ocupa todo tipo de fondos
rocosos infralitorales, siendo poco fre-
cuente en el cinturón de algas del meso-
litoral y en las pequeñas lagunas coste-
ras de las islas como la de Lajes do Pico,
en Pico (Fig. 25). Sin embargo, es una de
las especies más abundantes en Azores
en las algas fotófilas infralitorales
(AZEVEDO, 1991: 23, 30-33); COSTA Y
ÁvILA (1998) la consideran dominante
sobre Halopteris. También se encuentra
en enclaves de arena gruesa, constitui-
dos por un detrito de origen volcánico,
al menos en zonas situadas entre
grandes bloques o en la base de acanti-
lados rocosos. Este hábitat marginal lo
comparte con el bivalvo Ervilia castanea,
también abundantísimo en las islas (Fig.
31). Este tipo de hábitat es diferente al
observado en B. reticulatum y B. latretlli1,
que aunque abundan en la arena rete-
nida por las algas que cubren piedras o
bloques rocosos, nunca se encuentran
MORENO: Bittium nanum, una especie válida de las islas Azores
vivos en los detritos que quedan entre
ellos, que tienen cúmulos de conchas y
el sedimento está suelto. Este último
tipo de hábitat es más parecido al de B.
submamillatum. Se desconoce si la
especie vive también en fondos detríti-
cos o de cascajo, aunque es muy posible
dado el amplio rango batimétrico que
posee. MORTON (1990: 17, como B. reticu-
latum) cita a la especie en una plata-
forma rocosa cubierta de arena en el
interior del islote de Vila Franca (S.
Miguel, Azores). En la misma isla
BULLOCK, TURNER Y FRALICK (1990: 47 y
54, como B. reticulatum) la citan sobre
Codium adhaerens y sobre algas feofíceas.
La distribución de B. nanum se
encuentra restringida exclusivamente a
las islas Azores. Existen citas de todas
las islas del archipiélago; ÁvILA (1998:
483) aporta una extensa recopilación de
citas de las distintas islas. Para este
trabajo se han estudiado muestras de
casi todas ellas, en concreto de S. María,
S. Miguel, Terceira, Pico, Faial y Flores, e
incluso de los pequeños islotes llamados
Formigas, situados entre S. Miguel y S.
María, y en el Banco Joáo de Castro que
se encuentra entre las islas orientales (5.
María y S. Miguel) y las centrales (Ter-
ceira, Graciosa, S. Jorge, Faial y Pico),
donde ya había sido citada por ÁVILA Y
AZEVEDO (1997) y por ÁMILA ET AE.
(2004), respectivamente. Se creía que era
la único representante del género
Bittium presente en las islas Azores, pero
recientemente MARTINS ef al. (2009) ilus-
tran un material profundo que parece
corresponder al auténtico B. latreillii,
especie que consideran muy rara, proce-
dente de 180 m de profundidad frente a
Vila Franca do Campo en la isla de Sáo
Miguel.
Lo más probable es que B. nanum sea
una especie formada a partir de una
antigua población de B. latreillii que
quedara aislada en Azores. El origen
europeo de la especie se ve apoyado por
el estudio de GOFAS (1990: 123) sobre las
familias Rissoidae y Anabathridae en
Azores, en el que demuestra que la afi-
nidad de la fauna de las islas es casi
completa con la de las costas europeas,
mientras no existen apenas elementos
pertenecientes a la fauna norteameri-
cana. Lo mismo ocurre con el resto de la
flora y fauna del archipiélago según
observaciones personales. Las islas
Azores deben considerarse parte de la
región biogeográfica Lusitana (BRIGGS,
1974: 208).
B. latreillii debió colonizar en épocas
pasadas las islas Azores, gracias, proba-
blemente a una circulación de corrientes
superficiales diferente de la actual,
quizá en esa época las islas se encontra-
ran más cerca de Europa de lo que lo
están ahora. Esta población, muy alejada
del continente, debió sufrir un prolon-
gado aislamiento reproductivo, acen-
tuado en la actualidad por unas corrien-
tes superficiales que impiden el contacto
entre las poblaciones del continente y
las de las islas Azores, en ambos senti-
dos. Este aislamiento ha producido la
divergencia específica.
Según GOFAS (1990b: 123, fig. 13), los
movimientos actuales de aguas superfi-
ciales de la zona están dominados por la
corriente del Golfo, con dirección oeste-
este que llega a las Azores y continúa
hacia el norte de Europa. Las corrientes
procedentes de las costas europeas
tienen dirección sur hasta Madeira y
Canarias, donde giran en dirección oeste
pasando muy al sur de las Azores. El
archipiélago queda en una zona central
rodeado por corrientes que giran a su
alrededor en el sentido de las agujas del
reloj (anticiclón). Este movimiento del
agua superficial es similar al atmosfé-
rico. Es muy conocido el anticiclón de
las Azores, centrado sobre las islas, que
con frecuencia se traduce en calmas de
varios días, a pesar de estar en medio
del océano.
Nota nomenclatural acerca de Cerit-
hiopsis tubercularis var. nana Jeffreys,
1867
Como se ha mencionado anterior-
mente, Cerithiopsis nana Mayer, 1864 es
homónimo primario de Cerithiopsis
tubercularis var. nana Jeffreys, 1867 y,
pese a ello, este último nombre está
actualmente en uso para una especie
taxonómicamente válida de la familia
Cerithiopsidae. CECALUPO Y ROBBA
YN
Iberus, 29 (1), 2011
(2010) citan un buen número de referen-
cias (entre ellas, VAN AARTSEN MENK-
HORST Y GITTENBERGER, 1984: 29, fig.
(SI PALAZZO ISO CAGADAS
MIFSUD Y SAMMUT, 1996: p. 132, pl.
14,fig. 1; GIRIBET Y PEÑAS, 1997: 50, fig.
25, 29) y es previsible que se reúnan las
condiciones requeridas en el artículo
23.9 del CINZ sobre “inversión de pre-
cedencia”, O sea al menos 25 citas del
nombre por parte de al menos 10
autores en un espacio de tiempo no
menor de 10 años en los últimos 50
años.
No obstante, aunque se contemple la
inversión de precedencia, el nombre es a
su vez homónimo secundario de Ceri-
AGRADECIMIENTOS
Mi más sincero agradecimiento a
todas las personas que han colaborado de
una forma u otra en el presente trabajo,
como a José Templado, director de Tesis
que me animó y ayudó en todo momento
en el estudio del género Bittium; a Serge
Gofas que siempre me apoyó y permitió
realizar mis estancias en París, a Philippe
Bouchet, Bernard Métivier, Pierre
Lozouet y Virginia Héros del Muséum
National d'Histoire Naturelle de París
que facilitaron en todo momento los
trabajo en el Laboratorio de Malacologie;
a Sergio P. Ávila por su amistad y el
BIBLIOGRAFÍA
ÁvILA S.P. 1998. Zonacáo intertidal de uma co-
munidade malacológica na “Poca de Barra”,
uma lagoa localizada na plataforma costeira
da vila das Lajes do Pico, Acores. Agoreana,
8 (4): 457-485.
ÁviLA S.P. 2000. Shallow-water marine mol-
luscs of the Azores: biogeographical rala-
tionships. Arquipélago. Life and Marine Sci-
ences, Suppl. 2 (Part A): 99-131.
ÁviLA S.P.. AMEN R. AZEVEDO J.M.N.,
CACHAO M. Y GARCÍA-TALAVERA F. 2002.
Checklist of the Pleistocene marine mol-
lusks of Praínha and Lagoínhas (Santa
Maria Island, Azores). Acoreana, 9 (4): 343-
370.
AZ
thium tuberculare var. nanum Wood, 1848
(Crag Mollusca, 1: 70, pl. 8, fig.5c), como
ya ha sido notado por parte de varios
autores anteriores (CECALUPO Y BUZZU-
RRO, 2005: 134; LANDAU, LA PERNA Y
MARQUET, 2006: 13). El nombre de Wood
está en uso (SACCO, 1895: 66; REGTEREN
ALTENA, BLOKLANDER Y POUDEROYEN,
1955: 30, pl. 6, fig. 64; MARQUET, 1997:
82; CLEVERINGA, MEJER, VAN LEEUWEN,
DE WOLF POUWER, LISSENBERG Y
BURGER, 2000: 204-205). Una solución
más satisfactoria al problema nomencla-
tural, pero que se sale del ámbito del
pesente trabajo, sería que Cerithiopsis
nana Jeffreys fuera renombrada o, mejor,
descrita como nuevo taxón.
envío de numerosa bibliografía e infor-
mación sobre las islas Azores; a M”*
Ángeles Ramos y Josefo Bedoya (triste-
mente fallecido) por su colaboración y
obtención de las fotografías de Scanning
en el Museo Nacional de Ciencias Natu-
rales de Madrid; y a Nuria Martín
Herrero por todo su apoyo y ayuda en
los muestreos, incluido Lajes do Pico, en
un viaje de bodas malacológico inolvida-
ble. También se agradece a dos revisores
anónimos las sugerencias y correcciones
realizadas que han mejorado sustancial-
mente el trabajo.
ÁvILA S.P. Y AZEVEDO J. M. N. 1997. Shallow-
Water molluscs from the Formigas islets,
Azores, collected during the “Santa Maria e
Formigas 1990" scientific expedition. Acore-
ana, 8 (3): 323-330.
ÁvILA S.P., AZEVEDO J.M.N., GONGALVES J.M.,
FONTES]. Y CARDIGOS F. 1998. Checklist of the
shallow-water marine molluscs of the Azores:
1- Pico, Faial, Flores and Corvo. Acoreana, 8
(4): 487-523.
ÁVILA S.P., AZEVEDOJ.M.N., GONCALVES J.M.,
FONTES J. Y CARDIGOS F. 2000. Checklist of the
shallow-water marine molluscs of the Azores:
2- Sáo Miguel Island. Acoreana, 9 (2): 139-
WS:
MORENO: Bittium nanum, una especie válida de las islas Azores
ÁvILA S.P., CARDIGOS F. Y SANTOS R.S. 2004. D.
Joáo de Castro Bank, a shallow water hy-
drotermal-vent in the Azores: checklist of
the marine molluscs. Arquipélago. Life and
Marine Sciences, 21 (A): 75-80.
ÁviLA S.P., CARDIGOS F. Y SANTOS R.S. 2007.
Comparison of the community structure of
the marine mollusks of the “Banco D. Joáo de
Castro” seamount (Azores, Portugal) with that
of typical inshore habitats on the Azores ar -
_ chipelago. Helgoland Marine Research, 61: 43-53.
ÁVILA S.P., SANTOS A.C., PENTEADO A.M., Ro-
DRIGUES A.M., QUINTINO I. Y MACHADO M.I.
2005. The molluscs of the intertidal algal turf
in the Azores. Iberus, 23 (1): 67-76.
AZEVEDO J.N. 1991. Estudo das comunidades ma-
lacológicas fitais do litoral em Sáo Miguel, Aco-
res. Universidade dos Acores, 75 pp.
BRIGGSJ.C. 1974. Marine zoogeography. McGraw
Hill, Inc. New York, 475 pp.
BULLOCK R.C., TURNER R.D. Y FRALICK R.A.
1990. Species richness and diversity of algal-
associated micromolluscan communities
from Sáo Miguel, Acores. En: Martins A.M.F.
(Ed.). The marine fauna and flora of the Azores.
Acoreana Suplemento. (Proceedings of the First
International Workshop of Malacology, Sáo
Miguel, Azores, 1988): 39-58.
CACHIA C., MIFSUD C. Y SAMMUT P.M. 1996.
The marine Mollusca of the Maltese Islands (Part
Two: Neotaenioglossa). Leiden, Backhuys Pu-
blishers, 228 pp.
CALLAPEZ P. Y SOARES A.F. 2000. Late Quater-
nary warm marine mollusks from Santa
Maria (Azores) paleoecologic and paleobio-
geographic considerations. Ciencias da Terra,
14: 313-322.
CECALUPO A. Y BUZZURRO G. 2005. Cerithiopsis
annae: una nuova specie di Cerithiopsidae per
le coste tunisine. Bollettino Malacologico, 40 (9-
213285
CECALUPO A. Y ROBBA E. 2010. The identity of
Murex tubercularis Montagu, 1803 and des-
cription of one new genus and two new spe-
cies Of the Cerithiopsidae (Gastropoda: Tri-
phoroidea). Bollettino Malacologico, 46 (2): 45-64.
CLEVERINGA P., MEJER T., VAN LEEUWEN
R.J.W., DE WOLF H., POUWER R., LISSENBERG
T. Y BURGER A.W. 2000. The Eemian strato-
type locality at Amersfoort in the central
Netherlands: a reevaluation of old and new
data. Geologie en Mijnbourw, 79 (2/3): 197-216.
CosTA A.C. Y AVILA S.P. 2001. Macrobenthic
mollusc fauna inhabiting Halopteris spp. sub-
tidal fronds in Sáo Miguel island, Azores.
Scientia Marina, 65 (2): 117-126.
DAUTZENBERG P. 1889. Contribution a la faune
malacologique des Iles Acores. Résultats des
dragages effectués par le yacht l'Hirondelle.
Résultats des Campagnes Scientifiques accomplies
sur son yatch par Albert I de Monaco, Fascicule
A
GARCÍA-TALAVERA F. 1990. Fauna tropical en el
Neotirreniense de Santa Maria (1. Azores). La-
vori S.I.M., 23: 439-443.
GIRIBET G. Y PEÑAS A. 1997. Fauna malacológica
del litoral del Garraf (NE de la Península
Ibérica). Iberus, 15 (1): 41-93.
GOFAS 5. 1990. The littoral Rissoidae and An-
abathridae of Sáo Miguel, Azores. En Martins
A.M.F. (Ed.): The marine fauna and flora of the
Azores. Acoreana Suplemento. (Proceedings of
the First International Workshop of Mala-
cology, Sáo Miguel, Azores, 1988): 97-134.
HOUBRICK R.S. 1993. Phylogenetic relationships
and generic review of the Bittiinae (Proso-
branchia: Cerithioidea). Malacología, 35: 261-
315
JEFFREYS J.G. 1885. On the mollusca procured
during the Lightning and Porcupine expedi-
tions. Proceedings of the Zoological Society of Lon-
don: 27-63.
JOHANSSON J. 1947. Úber den offenen Uterus bei
einigen Monotocardiern ohne Kopulation-
sorgan. Zoologiska Bidrag fran Uppsala, 25 102-
110.
LANDAU B., La PERNA R. Y MARQUET RR. 2006.
The Early Pliocene Gastropoda (Mollusca) of
Estepona, southern Spain, Part 6:
Triphoroidea, Epitonioidea, Eulimoidea.
Palaeontos, 10: 1-96, pl. 1-22.
MAC ANDREW R. 1857. Report on the marine tes-
taceous Mollusca of the North-east Atlantic
and neighbouring Seas, and the physical con-
ditions affecting their development. Report of
the British Association for the Advancement of
Science, (1856): 101-158.
MARQUET R. 1997. Pliocene gastropod faunas
from Kallo (oost-Vlaanderen, Belgium) - Part
3. Caenogastropoda: Aporrhaidae to Muri-
cidae, and Part 4. Buccinidae to Helicidae.
Contributions to Tertiary and Quaternary Ge-
ology, 34: 69-149.
MARTINS A.M.F., BORGES]J.P., ÁVILA S.P., COSTA
A.C., MADEIRA P. Y MORTON B. 2009. Illus-
trated checklist of the infralittoral mollusks
off Vila Franca do Campo. Acoreana, Suple-
mento 6 (Setembro): 15-103.
MAYER K. 1864. Systematisches Verzeichniss der
fossilen Reste von Madeira, Porto Santo und
Santa Maria, nebst Beschreibung der neuen Arten.
Zúrich (Reedition Brill /Backhuys, Leiden,
1988), I-VI, 109 pp.
MORENO D. 1998. Sistemática y biología del género
Bittium (Gastropoda, Prosobranchia) en la Pe-
nínsula Ibérica. Tesis Doctoral, Universidad
Complutense de Madrid, inédita, 473 pp.
MORTON B. 1990. The intertidal ecology of
Ilheu de Vila Franca - a drowned volcanic
crater in the Azores. En Martins A.M.F.
(Ed.): The marine fauna and flora of the Azores.
Agoreana Suplemento. (Proceedings of the
First International Workshop of Mala-
cology, Sáo Miguel, Azores, 1988): 3-20.
as
Iberus, 29 (1), 2011
MORTON B., BRITTON J.C. Y MARTINS A.M.F.
1998. Ecologia Costeira dos Acores. Sociedade
Afonso Chaves, Ponta Delgada, x + 249 pp.
NOBRE A. 1924. Contribucoes para a fauna dos
Acores. Anais do Instituto de Zoología da Uni-
versidade do Porto, 1: 41-90.
NORDSIECK F. 1976. Il genere Bittium Leach,
1847 nei mari d'Europa. La Conchiglia, 8 (93-
94): 6-9.
NORDSIECK F. Y GARCÍA-TALAVERA F. 1979. Mo-
luscos marinos de Canarias y Madera (Gastro-
poda). Aula de Cultura Tenerife, 208 pp.
PALAZZIS. 1994. Cerithiopsis nana (Jeffreys, 1867)
vivente su Suberites. Bollettino Malacologico, 30:
79-80.
REGTEREN ALTENA C.O. VAN, BLOKLANDER A.
Y POUDEROYEN L.P. 1955. De fossile schelpen
van de Nederlandse stranden en zeegaten, 2.
Basteria, 19: 2736.
SACCO F. 1895. I Molluschi dei terreni terziaril del
Piemonte e della Liguria. Parte XVII (Cerithi1dae,
Triforidae, Cerithiopsidae e Diastomidae). To-
rino, Carlo Clausen, 83 pp, 3 pls.
74
VAN AARTSEN J.J.; MENKHORST H.P.M.G. Y GIT-
TENBERGER E. 1984. The marine Mollusca of
the Bay of Algeciras, Spain, with general
notes on Mitrella, Marginellidae and Turri-
dae. Basteria, supplement 2: 1-135.
VERDUIN A. 1976. On characters, variability,
and distribution of the Europaean marine
gastropods Bittium latreillii (Payraudeau) and
Bittium lacteum (Philippi). Basteria, 40: 133-142.
WATSON R.B. 1897. On the Marine Mollusca of
Madeira. Linnean Journal of Zoology, 26: 233-
329, 2:p1S:
WOOD S.V. 1848. A monograph of the Crag Mol-
lusca, with descriptions of shells from the upper
Tertiaries of the British Isles. The Palaeonto-
graphical Society Monographs, London, 1-208
Pp 2115:
ZBYSZEWSKY G. Y FERREIRA O.V. 1962. Étude
géologique de l'ile de Santa Maria (Acores).
Comunicacoes dos Servicos Geológicos de Por-
tugal, 46, 209-245.
NORMAS DE PUBLICACIÓN
e La revista Iberus publica artículos de fondo, notas y monografías que versen sobre cualquiera de los aspectos
relacionados con la Malacología. Se entiende por artículo un trabajo de investigación de más de 5 páginas de
texto, incluidas láminas, gráficos y tablas. Las notas son trabajos de menor extensión. Las monografías son tra-
bajos sobre un tema único, de extensión superior a las 50 páginas de la revista y que serán publicadas, si
procede, como un suplemento de Iberus. Los autores interesados en publicar monografías deberán ponerse
previamente en contacto con el Editor de Publicaciones. Se entiende que el contenido de los manuscritos no ha
sido publicado, ni enviado simultáneamente a otra revista para su consideración.
e Los manuscritos, así como toda la correspondencia relacionada con los mismos, deberán ser remitidos a:
Serge Gofas, Editor de Publicaciones, Departamento de Biología Animal, Universidad de Málaga, Campus de
Teatinos, s/n, 29071, Málaga, España y / o al correo electrónico .
e El texto del trabajo podrá estar redactado en español, inglés, italiano, francés o portugués.
e Los artículos, notas y monografías deberán presentarse sobre DIN A-4, por una sola cara a doble espacio
(incluyendo referencias, pies de figura y tablas), con al menos 3 centímetros de margen por cada lado. Los tra-
bajos se entregarán por triplicado (original y dos copias) y se incluirá una versión en un CD, o bien remitida
por correo electrónico, utilizando procesadores de texto en sus versiones de corrientes de Windows (pero no
en el formato .docx de Word 2007, el habitual de Windows Vista) o Macintosh. En caso de autoría compartida,
uno de los autores deberá hacerse responsable de toda la correspondencia.
e Junto con el trabajo debe incluirse una lista de al menos 4 posibles revisores del mismo, sin perjuicio de los
que el propio Editor considere oportunos.
e Los manuscritos se presentarán de acuerdo al siguiente esquema:
Primera página. Deberá incluir un título conciso, pero sugerente del contenido del trabajo, así como una traduc-
ción al inglés del mismo (si el artículo no está escrito en inglés). Cuando sea preciso, deberá incluir referencia a
familia o taxones superiores. A continuación figurarán, por este orden, el nombre y apellidos completos del
autor o autores, las direcciones completas de los mismos, y un resumen del trabajo y su traducción al inglés.
Dicho resumen deberá sintetizar, en conjunción con el título, tanto los resultados como las conclusiones del
artículo; se sugiere una extensión de 100 a 200 palabras.
Páginas siguientes. Incluirán el resto del artículo, que debe dividirse en secciones precedidas por breves encabe-
zamientos. Siempre que sea posible, se recomienda seguir el siguiente esquema: Introducción, Material y
métodos, Resultados, Discusión, Conclusiones, Agradecimientos y Bibliografía. Si se emplean abreviaturas no
habituales en el texto, deberán indicarse tras el apartado de Material y Métodos.
e Las notas breves deberán presentarse de la misma forma, pero sin resumen.
e Deberán evitarse notas a pie de página y referencias cruzadas. Deberán respetarse estrictamente los Códigos
Internacionales de Nomenclatura Zoológica y Botánica (últimas ediciones). Cuando un taxón aparezca por
primera vez deberá citarse su autor y fecha de su descripción. En el caso de artículos sistemáticos, cuando se
den las sinonimias de los taxones, éstas deberán citarse COMPLETAS, incluyendo en forma abreviada la
publicación donde fueron descritas, y la localidad tipo si es conocida entre corchetes, según el siguiente
esquema (préstese especial cuidado a la puntuación):
Dendrodoris limbata (Cuvier, 1804)
Sinonimias
Doris limbata Cuvier, 1804, Ann. Mus. Hist. Nat. Paris, 4 (24): 468-469 [Localidad tipo: Marsella].
Doris nigricans Otto, 1823, Nov. Act. Ac. Caes. Leop.-Car., 10: 275.
Dichas referencias no deberán incluirse en la lista de Bibliografía si es la única vez que se nombran en el texto.
Si se incluyen una lista completa de referencias de un taxón inmediatamente tras éste, deberá seguirse el
mismo esquema (sin incluir en Bibliografía las referencias que no se mencionen en otro lugar del texto).
e Sólo los nombres en latín y los de taxones genéricos y específicos deberán llevar subrayado sencillo o prefe-
rentemente ir en cursiva. En ningún caso deberá escribirse una palabra totalmente en letras mayúsculas, ni
siquiera el Título. Las unidades a utilizar deberán pertenecer al Sistema Métrico Decimal, junto con sus correc-
tas abreviaturas. En artículos escritos en castellano, en los números decimales sepárese la parte entera de la
decimal por una coma inferior (,), NUNCA por un punto (.) o coma superior (').
e Las referencias bibliográficas irán en el texto con minúsculas o versalitas: Fretter y Graham (1962) o FRETTER
Y GRAHAM (1962). Si son más de dos autores se deberán citar todos la primera vez que aparecen en el texto
[Smith, Jones y Brown (1970)] empleándose et al. las siguientes veces [Smith et al. (1970)]. Si un autor ha publi-
cado más de un trabajo en un año se citarán con letras: (Davis, 1989a; Davis, 1989b). No deberá emplearse op.
cit. La lista de referencias deberá incluir todas las citas del texto y sólo éstas, ordenadas alfabéticamente. Se
citarán los nombres de todos los autores de cada referencia, sea cual sea su número. Los nombres de los
autores deberán escribirse, en letras minúsculas o Versalitas. No deberán incluirse referencias a autores
cuando éstos aparezcan en el texto exclusivamente como autoridades de un taxón. Los nombres de las publica-
ciones periódicas deberán aparecer COMPLETOS, no abreviados. Cuando se citen libros, dése el título, editor,
lugar de publicación, n” de edición si no es la primera y número total de páginas. Deberán evitarse referencias
a Tesis Doctorales u otros documentos inéditos de difícil consulta. Síganse los siguientes ejemplos (préstese
atención a la puntuación):
Fretter V. y Graham A. 1962. British Prosobranch Molluscs. Ray Society, London, 765 pp.
Ponder W.F. 1988. The Truncatelloidean (= Rissoacean) radiation - a preliminary phylogeny. En Ponder, W.F.
(Ed.): Prosobranch Phylogeny. Malacological Review, suppl. 4: 129-166.
Ros J. 1976. Catálogo provisional de los Opistobranquios (Gastropoda: Euthyneura) de las costas ibéricas. Mis-
celánea Zoológica, 3 (5): 21-51.
e Las gráficas e ilustraciones deberán ser originales y presentarse preferentemente en formato electrónico al
formato de caja de la revista o proporcional a éste. Este formato es de 57 mm (una columna) o 121 mm (dos) de
anchura y hasta 196 mm de altura, si bien se recomienda utilizar el formato a dos columnas. Es importante que
todas las figuras sean remitidas en su formato original (por ejemplo, las fotografías en .j¡pg de alta calidad o .tif,
las gráficas en hojas de cálculo Excel o documentos de CorelDraw), puesto que las ilustraciones insertadas en
el manuscrito WORD son inservibles en la fase de imprenta. Las imágenes digitales deben ser formateadas en
su tamaño de impresión con una resolución mínima de 300 ppp para imágenes en color o escala de grises y de
600 ppp para las de blanco y negro. Considérese la reducción que será necesaria a la hora de decidir el tamaño
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deberá etiquetarse con letras mayúsculas, el resto de las letras deberán ser minúsculas. Las escalas de dibujos y
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cias a los aumentos de una determinada ilustración, ya que éstos cambian con la reducción. En su caso, se
recomienda la utilización de mapas con proyección UTM. Cada figura, gráfica o ilustración deberá presentarse
en hojas separadas y con numeración arábiga (1, 2, 3,...), sin separar “Figuras” y “Láminas”. Los pies de
figura, en una hoja aparte, deberán acompañarse de su traducción al inglés (o español si el inglés es la lengua
del trabajo). Utilicese el esquema siguiente:
Figura 1. Neodoris carvi. A: animal desplazándose; B: detalle de un rinóforo; C: branquia.
Las abreviaturas empleadas en las ilustraciones deberán incluirse en los pies de figura.
Los autores interesados en incluir láminas en color deberán consultar con el editor y sufragar el sobrecoste con
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Si se pretende enviar gráficas o ilustraciones en impresión de papel es imprescindible presentar originales de
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estén debidamente alineadas. Téngase en cuenta que incluir fotografías de distinto contraste en una misma
página conlleva una pobre reproducción final. Las gráficas de ordenador deberán imprimirse con impresora
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e Las Tablas se presentarán en hojas separadas, siempre con numeración romana (1, II, II1...). Las leyendas se
incluirán en una hoja aparte acompañándose de una traducción al inglés. Deberán evitarse las tablas particu-
larmente complejas. Se recomienda reducir el número y extensión de ilustraciones, láminas o tablas al mínimo
necesario.
e Los artículos que no se ajusten a las normas de publicación serán devueltos al autor con las indicaciones de
los cambios necesarios.
e El Comité Editorial comunicará al autor responsable del trabajo la fecha de recepción del trabajo y la fecha
de envío a revisión. Cada original recibido será sometido a revisión por al menos dos investigadores. El
Comité Editorial, a la vista de los informes de los revisores decidirá sobre la aceptación o no de cada manus-
crito. El autor recibirá en cada caso copia de los comentarios de los revisores sobre su artículo. En caso de
aceptación, el mismo Comité Editorial, si lo considera conveniente, podrá solicitar a los autores otras modifica-
ciones que considere oportunas. Si el trabajo es aceptado, el autor deberá enviar una copia impresa del mismo
corregida, acompañada por una versión en un CD, utilizando procesadores de texto en sus versiones corrien-
tes de Windows (pero no el formato .docx generado por Word 2007, el habitual de Windows Vista) o Macin-
tosh. La fecha de aceptación figurará en el artículo publicado.
e Las pruebas de imprenta serán enviadas por correo electrónico al autor responsable, exclusivamente para la
corrección de erratas, y deberán ser devueltas en un plazo máximo de una semana. Se recomienda prestar
especial atención en la corrección de las pruebas.
e De cada trabajo se entregarán gratuitamente 50 separatas, además de una versión electrónica en formato
.pdf. Aquellos autores que deseen un número mayor, deberán hacerlo constar al devolver las pruebas de
imprenta, y nunca posteriormente. El coste de las separatas adicionales será cargado al autor.
INSTRUCTIONS TO AUTHORS
e Iberus publishes research papers, notes and monographs devoted to the various aspects of Malacology.
Papers are manuscripts of more than 5 typed pages, including figures and tables. Notes are shorter papers.
Monographs should exceed 50 pages of the final periodical, and may be published as Supplements. Authors
wishing to publish monographs should contact the Editor. Manuscripts are considered on the understanding
that their contents have not been published or simultaneously submitted for publication elsewhere.
+ Manuscripts and correspondence regarding editorial matters must be sent to: Serge Gofas, Editor de Publica-
ciones, Departamento de Biología Animal, Universidad de Málaga, Campus de Teatinos, s/n, 29071, Málaga,
Spain and / or to the e-mail .
e Manuscripts may be written in Spanish, English, Italian, French or Portuguese.
e Manuscripts must be typed double spaced (including the references, figure captions and tables) on one side
on A-4 (297x210 mm) with margins of at least 3 cm. An original and two copies must be submitted, together
with a CD or e-mail remittance containing the article written with a current Windows (but not .docx format
generated by Word 2007, mainly used with Windows Vista) or Macintosh word processor. When a paper has
joint authorship, one author must accept responsibility for all correspondence.
e The authors must include a list of at least 4 possible referees; the Editor can choose any others if appropriate.
e Papers should conform the following layout:
First page. This must include a concise but informative title, with mention of family of higher taxon when
appropriate, and its Spanish translation. It will be followed by all authors” names and surnames, their full
address(es), an abstract (and its Spanish translation) not exceeding 200 words which summarizes not only con-
tents but results and conclusions.
Following pages. These should content the rest of the paper, divided into sections under short headings. When-
ever possible the text should be arranged as follows: Introduction, Material and methods, Results, Discussion,
Conclusions, Acknowledgements and References. Unusual abbreviations used in the text must be grouped in
one alphabetic sequence after the Material and methods section.
e Notes should follow the same layout, without the abstract.
e Footnotes and cross-references must be avoided. The International Codes of Zoological and Botanical
Nomenclature must be strictly followed. The first mention in the text of any taxon must be followed by its
authority including the year. In systematic papers, when synonyms of a taxon are given, they must be cited IN
FULL, including the periodical, in an abbreviate form, where they were described, and the type localities in
square brackets when known. Follow this example (please note the punctuation):
Dendrodoris limbata (Cuvier, 1804)
Synonyms
Doris limbata Cuvier, 1804, Ann. Mus. Hist. Nat. Paris, 4 (24): 468-469 [Type locality: Marseille].
Doris nigricans Otto, 1823, Nov. Act. Ac. Caes. Leop.-Car., 10: 275.
These references must not be included in the Bibliography list, except if referred to elsewhere in the text. If a
full list of references of the taxon is to be given immediately below it, the same layout should be followed (also
excluding from the Bibliography list those which are not cited elsewhere).
Only Latin words and names of genera and species should be underlined once or be given in italics. No word
must be written in UPPER CASE LETTERS. SI units are to be used, together with their appropriate symbols. In
Spanish manuscripts, decimal numbers must be separated with a comma (,), NEVER with a point (.) or upper
comma (').
e References in the text should be written in small letters or Small capitals: Fretter and Graham (1962) or
FRETTER AND GRAHAM (1962). The first mention in the text of a paper with more than two authors must
include all of them [Smith, Jones and Brown (1970)], thereafter use et al. [Smith et al. (1970)]. If an author has
published more than one paper per year, refer to them with letters: (Davis, 1989a; Davis, 1989b). Avoid op. cit.
The references in the reference list should be in alphabetical order and include all the publications cited in the
text but only these. ALL the authors of a paper must be included. These should be written in small letters or
Small capitals. The references need not be cited when the author and date are given only as authority for a tax-
onomic name. Titles of periodicals must be given IN FULL, not abbreviated. For books, give the title, name of
publisher, place of publication, indication of edition if not the first and total number of pages. Keep references
to doctoral theses or any other unpublished documents to an absolute minimum. See the following examples
(please note the punctuation):
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1
|
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wii
ÍNDICE
Iberus 29 (1) 2011
SCUDERI D. E CRISCIONE E. Cima apicisbelli Rolán, 2003 (Gastropoda: Cimidae): nuovo immi-
grante in Mediterraneo o specie autoctona?
Cima apicisbelli Rolán, 2003 (Gastropoda: Cimidae): ¿nuevo inmigrante en el Mediterraneo 0
ESPECIE AULOCIORAS A A A A EN 1-7
OLIVER J.D. AND ROLÁN E. The family Tornidae (Gastropoda, Rissooidea) in the East Atlantic,
2. Circulinae
La familia Tornidae (Gastropoda, Rissovidea) en el Atlántico oriental, 2. Circulinae .. 9-33
CAMPANI E., BOGI C. AND GALIL B.S. First Mediterranean record of Diaphana marshall (Sykes,
1904) (Gastropoda, Diaphanidae) - a rare bathyal species
Primera cita para el Mediterráneo de Diaphana marshalli (Sykes, 1904) (Gastropoda, Diap-
PEMAAE) UNA ESPECIE TIT A 35-38
DE MArTTIA W. AND MAscIiaA E Otala punctata (O.E Miller, 1774) (Stylommatophora: Helicidae)
in Italy
Otala punctata (O.E Múlter, 1774) (Stylommatophora: Helicidae) en Italia ....... 39-46
TIRADO C., RUEDA J.L. AND CARMEN SALAS C. Reproduction of Donax trunculus in the littoral
of Huelva (southern Atlantic Spain): is there any difference with the Mediterranean popu-
lation from the Andalusian coast?
Reproducción de Donax trunculus en el litoral de Huelva (suroeste Atlántico de España): ¿hay
diferencias con la población mediterránea de la costa andaluza? ico 47-57
MORENO D. Bittium nanum (Gastropoda, Cerithiidae), una especie válida de las islas Azores
Bittium nanum (Gastropoda, Cerithiidae), a valid species from the Azores Islands .... 59-74
ISSN 0212-3010
UTION LIBRARIES
UN
619 4623
] berus
mor
aos
INVE REVISTA DE LA
SOCIEDAD ESPAÑOLA
DE MALACOLOGIA
Vol. 29 (2)
| Vigo, diciembre 201 1
Iberus
Revista de la
SOCIEDAD ESPAÑOLA DE MALACOLOGÍA
Comité DE ReDAcciÓN (BOARD OF EDITORS)
EDITOR DE PUBLICACIONES (EDITOR=IN=CHIEF)
Serge Gofas
Universidad de Málaga, España
DIRECTOR DE REDACCIÓN (EXECUTIVE EDITOR)
Gonzalo Rodríguez Casero
Mieres del Camino, Asturias, España
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José Templado González
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Embajada de España, Japón
Universidad del País Vasco, Vitoria, España
Universidad Autónoma de Madrid, Madrid, España
Universidad de Vigo, Vigo, España
Museo Nacional de Ciencias Naturales, CSIC, Madrid, España
Universidad de Vigo, Vigo, España
Comité EDITORIAL (BOARD OF REVIEWERS)
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Universidad de Barcelona, Barcelona, España
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Institut fúr Zoologie der Universitút Wien, Viena, Austria
Universidad de Santiago de Compostela, Santiago de Compostela, España
Swedish Museum of Natural History, Estocolmo, Suecia
Iberus gualtieranus (Linnaeus, 1758), una especie emblemática de la península Ibérica, que da
nombre a la revista. Dibujo realizado por José Luis González Rebollar “Toza”.
Iberus
REVISTA DE LA
SOCIEDAD ESPAÑOLA
DE MALACOLOGÍA
Vol. 29 (2) Vigo, diciembre 201 1
Iberus
Revista de la
SOCIEDAD ESPAÑOLA DE MALACOLOGÍA
Iberus publica trabajos que traten sobre cualquier aspecto relacionado con la Malacología. Se
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BIOSIS.
Dep. Leg. B-43072-81
ISSN 0212-3010
THE FAMILY TORNIDAE (GASTROPODA,
RISSOOIDEA) IN THE CARIBBEAN AND
NEIGHBORING AREAS
LA FAMILIA TORNIDAE (GASTROPODA, RISSOOIDEA)
EN EL CARIBE Y ÁREAS VECINAS
Federico RUBIO
Pintor Ribera, 4-16*
46930 Quart de Poblet
(Valencia), Spain
e-mail: federubioono.com
Raúl FERNÁNDEZ-GARCÉS
Centro de Estudios Ambientales de Cienfuegos (CEAC),
División de Gestión Ambiental (DGA),
calle 17, esquina Ave. 46,
Cienfuegos, Cuba
$
Emilio ROLÁN
Museo de Historia Natural,
Campus Universitario Sur,
15782, Santiago de Compostela, Spain
e-mail: erolanCemiliorolan.com
INDEX OF SPECIES:
Iberus 29 (2) 2011
PLATES
BN
FAMILY TORNIDAE
SPECIES PAGE
GENUSCIRECULTS
Cireulus semaisculptus (Olsson $e MeGinty, 1958) connaccciiicinccnociconioo cdta idas 6
SAS SS IL A A 8
Erreulusitatus (Ad Mea once iobacaradcdaa riada 10
Circula stexamis ((MOOre, LODO) .astio acto sincadon ia cionaadocaco rodeado icrabaciiiod 11
GENUS TEINOSTOMA
VEAS rra lA A A 15
Temostoma contosyrus Pilsbry Se MeGinty, 1945 cecccooninnonianiorocanesccnsinacsonónass 16
Ternostomolenteculare EL €. Eear Sho) cuota dioadasiooinibecrecn caia 19
Terrostornia seclisun (Dal. LO tool iici ados id Sig icióósn 21
MEA ERAN TAS NA 24
Temostoma incertum. Pilsbry.£ MeGinty, TIAS vavecionscscoaninccasonodniaconccuens donó 24
Teinostoma anastomosis spec. nov. Rubio, Rolán 8 Le€ .....ooconionicnonicnconcnnos 27
Teinostoma panamense spec. nov. Rubio, Rolán é Lee..........cononcnonmo.*... 29
Teinostoma biscaynense Pilsbry 6 McGinty, 1945 .oooocccccncciccnnoononnnnnnnanicnnonos 29
Ternostomaobteciun Pilsbry (E MEGINIEy, LIA caocoraccnmiaiosiniocn serian 33
MAA E ES AS O A AS 34
lenostomamesación PilsbiSMecGinty, LOAD ccotcneconnorionoien caso ea pirineos 36
Temmostoma semistriatumtd Orbleny, 1842) occiso nionicoiamaiasaciiós 38
Termostomto miau scada SI decido noni 41
Jemmostomalderema Pisbry e MeGiiy II tapones tancia 43
Temostoma mbilicatunm (El: Lea, 143 e ccanosanacotaninonnitocccal cie saordanenacóan 44
MR a AS A 46
Memos tonta soma un (Dal in ena adan a carios 48
MS A A A 50
Temostonta cocolitoris Pilsbry E MeGinty, TIAS e ccccociania rdancenecininn rincon 50
TesostontaMeliciiun pe proto incio oline 53
TemostomamesasiomaxEb: Adams, 1850 urinarias 54
emos toma cienjuegosense Spec MOV ose cistuiocidsatass siaancrosidoso soba edocbe sica 56
Temostoma parvicallum Pilsbry $ MeGinty, 19D escnorrtoninciciniancacinninniónicanenas 9
Temostomvayme saca lumispec:MO Ve ss oooicasaio colono ciencia iento cotas 99
Temmostoma carimicallusilalsbiy E MeGinty, LIO ccotovonodiccincnandcococccaco natación 61
Temostoma lituspalmarum Pilsbry € MeGinty, 194 vncncoiicnnionoscinnineneriianess 61
GENUS TORNUS
Tornusicaraboboensis (Welsbord, 1962) 0 cridncncnncconiolon cito endodancodnonacaino seas 63
MISS A E O A ENE 64
GENUS ANTICLIMAX
Annolmaricrass tabs (Aguayo: Se BOLLO, LIO) macrotcntoncan cucuta 68
cas pec nov. Rubio, Rola de Pelorce iaiciinaenciooeeiciosonines 70
Anticlimax decorata Rolán, Fernández-Garcés éz Rubio, 199 inc... 70
Sl) Anticiimazx provosciad ca a e 73
38 ARECIÓMAPIS YM 75
39 Antcrmax lock Olsson A 74
40 Ancla aaa cias O O A 76
41 Anticlimax hispantolensis cratera Pilsbry €: Olsson, 1950 cocooccnicnicnicnncinn... IS
GENUS AOROTREMA
42 Aro tema stronum DAMAS A o ÓN 80
Aorotrema pontogenes (Schwengel €: MeGinty, 1942) ..ooocoocciciccociciciccocacannos 81
GENUS CYCLOSTREMISCUS
43 Cyclostremiscus beans eS 84
44 Cyclostremiscus multiliratus spec. nov. Rubio, Rolán éz Garcia ................. 86
45 Eyclostrenmiscus dal Bus 88
46 Eyclostremiscuspentasonas Ci 88
47 Eyclostrentiscus al US 91
48 Eyelostreniscus te O 93
409 Cyelostrentiscus DaniscaMans el O 95
50 Eyclostremiscus jeanaae lso E MEGA 97
Sl Euclostremiscus ss uppressus DM A 97
52 Cyclostremiscus vanbruggent de Jong $: Coomans, 1988 ....ooconcoccccciccconooo. LOO
d9 Cyclostremiscus diminutus spec. nov. Rubio, Rolán éz Pelorce ................ 100
54 Cyclostremiscus cubanus (Pilsbry € Aguayo, 1933 )tc.acccconncaconoioinononcion: 103
3) Eyclostremiscus eu oy pls cuy OS BOO MA eta aio 105
56 Cyclostremiscus microstriatus spec. nov. Rubio, Rolán € Lee.................. 105
GENUS COCHLIOLEPIS
57 Cochliolepis adams NA e 0 108
58 Cochtiolepas RAM 109
59 Cochttolepis nautltormisiClolmes 1 ei 1012
6061762 Cochlholepts paras O a on 110
63 Cochliolepss striata Da neto o naaa, Ao 118
64 Cochilolepis PU A 118
65 Cochliolepis patriciorspec, nov. Rubio, Rolán S Lee coacciones sonetos 120
66 Cochliolepis diferens spec. nov. Rubio, Rolán € Leen 125
67 Coco an ace tol e DE 123
GENUS EPISCYNIA
68/69. Episcyia mona A e ed 126
GENUS PARVITURBOIDES
7071 Baroiturbordes mteruptus CEBA 129
GENUS PLEUROMALAXIS
Ja Plewromalaxis balest (Búisbiy MCG a a 133
GENUS SOLARIORBIS
NS) solariornbis antillensiside Jon: E CIMA ocaso 135
73 SOLARIS AMIA 135
74 Solamorbisblaken (Render 14 A O 187
7) Solarntorbis elezans (Olsson EME 139
705177. Solarionbisiamacarimatus (CA 139
78 Solamorbismoorcanas (Y ON 143
79 Solaronbistimultistaatus A. Es Vernill. LO dc ot 145
80 Solarmiorbis incas Gabba acen 145
81 Solaiorbiss clio Vanatta LLO) ni tasas 1147
82 SOLOMON DIS isemipunacios Nlo0te IO DE oconreoconanoicicncioioe ciencias ileso besaacs 149
83, 84 Solariorbisterminalis(Bilsbry Se MeGinty 1946) conoccaconi nic idiccacentestano 150
8) AS A 153
86 AS A A 159
86 TI A A A A A 159
87 Solariorbis punctostriatus spec. nov. Rubio, Rolán dz Le€...oooonconinninnnnn..... 157
Ll ASIS EAN A A A 159
GENUS VITRINELLA
90 Vitimella annelñtesge de Jong ECoomans, IO iii enatoterualon sondin cen nennenisinicnes 162
91 Witinella comeracia (Vanaltta, LI analice 164
92 MAT Us En Dela SAR A A 165
93 inem suelos (Dal ISI ct o AÍ E diota 167
94,95 Witnella relico idea Cb. Adams LSO scada iaa aiodatados 167
96 Vitnella tlordara Pisbry E MeGinty, 1I4O ceocconasenentoóniosionincotaneocitcadadoio 71
97 Vitanet canalla SDE MON ooo tcteces leonado ioneinio is iadd asin 173
98 A E RO 173
99 Virinella pseudo ais tata Spec Vulcan lectoras aaineidoo soso 176
100 A 176
101 E 178
102 NE E e 181
103 Wiimnela cuptdinensis Altena, TIO sapicacaccnaciin ion donostia in etade latas 181
104 Vitanella fuera Risbry E MeGinty, LORO caicinicnonccincocicninoecaciocasd notado ccinaós 184
105 VE A 186
GENUS VITRINORBIS
106 Vitrinorbiselecans Olsson E MeoGinty 199 ecscacicinosnconiiacacanocraconniicnsesrnecnss 186
OTHER SPECIES
SPECIES NOT REPRESENTED IN OUR MATERIAL
Amtelimas senumot(Vanattas LIS lr adiaietiiiadaccidoniiacids 189
Eochttolepis surimamensis Altena, LIO me cvcnarcinionecionandbadeccn coa sesacccacos iaa añendo 189
Discopists.omalos (olla ASTON coito dote nta iaconrmaoncennconneedid soldier dns 189
Pleuromalaxis paul Olsson € MeGinty, LODOS. oc icncosinonoiiccniacoiatindososascncipano 190
solariorbis hondurasensis (Vanatta TIO coacitanncat irianan di nidriincinacndas 190
107 Solarorbis petita (Batischer LEÍ) coiecoosennenitocencente neo caresiancns rodando sesimpaerisins 190
Temostona avunculusLlsbiy LIDO aries said 191
Ternostomamnonierer Joussearme 1972 conncconoonconatonsnonocconno rado roo netas csosenenenens 191
Temostoma paroumilSamapson LS). ccunsiracaoalo cnn artesslrarasotacósonaisdias 192
108 Vitrenellaanomala (Orsay SA) Dieron concaciononinnionretano des canaiacatin se dercadiadono 192
Vienmeltarcarmara (diOibieny 142 arrancan ocasionaron cri ndnpesepegetonos 192
Vine nea pt anatta Ll roo ioio rai ccndieos dino acageno sreeesosia ries 192
036 109 Viirinela Dust (ll Bterter SO) icon necneonioo dico cnecandeneno enanos semen 193
A O A AA EE NS A 195
FOSSILS OR SUPPOSEDLY FOSSIL SPECIES, NOT RECENT
Antclnaxathleenae (Pilsbry E MeGinty, TI4O) uncccincncacancann cion cocoa aer 195
110
pill
112
(US;
114
114
ls
116
116
17
118
119
120
v
A0H0 Henao 197
Eyclosteniscus 197
EyclostremiscusioumteriMastieid OS 197
Eyclostremiscusolss on 197
Parorturbomides ate 197
Solariorbis.eugenes alsbry LIS ao 197
Termostomiacaloosaense DM 199
Temostoma tectispua ld eso Eo 199
SPECIES FROM NEARBY OR RELATIVELY NEARBY AREAS
Neusas marshall (ye oie iS 199
Pond ernnellaxacrtaba Absalao, 2000 a O 200
Ternostomadabnormie EA Sai de 200
SPECIES RECORDED ERRONEOUSLY FROM THE CARIBBEAN
Adeo rise O 201
Vitirinelare ita 201
SUPPLEMENT
DUBIOUS SPECIES, APPARENTLY NOT TORNIDAE
A0rotrema erraticumblsbiy E Me A atea cia coSS 202
Vitrinellatinecta ( been
recorded from off Destin, west
Florida (PILsBRY ér MCGINTY, 1945a);
from Bocas island, Panama (OLsson
éz MCGINTY, 1958); from off north-
west Florida, southern Haiti and
Panama (MOORE, 1964); from north-
west Gulf of Mexico (ODÉ, 1987);
from Florida to Caribbean Panama
(Lyons, 1989; LEE, 2009); from
Colombia (Díaz MERLANO éz
PUYANA HEGEDUS, 1994); also from
Cuba.
Remarks: PILSBRY é€ MCGINTY
(1945a) mention that Teinostoma
goniogyrus resembles Rotella cari-
nata (d'Orbigny) from St. Thomas in
shape, but instead of the small
umbilical callus of that species, has
a remarkable, extremely thick callus,
exceeding that of any other Teinos-
toma except T. pilsbryi. Under high
power some faint traces of close
spiral striation can be seen in a few
places on the unique type. MOORE
(1964) commented that this species
is also similar to T. incertum in the
spiral punctiform lines and in the
shape of the umbilical callus. T.
incertum is more depressed and has
a strong peripheral keel. The strati-
graphic distribution of this species
is from the Upper Miocene to
Recent. There is a considerable vari-
ation of size between the fossil
shells from the Miocene and Plio-
Pleistocene and the recent ones.
PILSBRY dé MCGINTY (1945a)
described T. goniogyrus on the basis
of a single shell, citing the wider
umbilical callus as the specific dif-
ference from R. carinata. PILSBRY
(1953) figured fossil shells of T.
goniogyrus from Smithfield, Vir-
ginia and St. Petersburg, Plio-Pleis-
tocene of southern Florida and kept
the size of the umbilical callus as the
only difference between species. We
have examined shells from Florida
and Cuba and found very little dif-
ference between them. We have also
examined shells from the Pliocene,
Caloosahatchee Formation, from La
Belle, Florida, and we have not
observed important differences in
the size of the umbilical callus. K.J.
Bush (1897) identified two speci-
mens from station 2278, off Cape
Hatteras, in 16 fathoms (29 m), as
the R. carinata of d'Orbigny.
1
Iberus, 29 (2), 2011
Figures GA-G. Teinostoma goniogyrus Pilsbry 82 McGinty, 1945. A-D: shells, 1.5, 1.5, 1.4, 1.5 mm,
Cienfuegos Bay, Cuba; E: protoconch; F-G: microsculpture.
Figuras GA-G. Teinostoma goniogyrus Pilsbry + McGinty, 1945. A-D: conchas, 1,5, 1,5, 1,4, 1,5
mm, Bahía de Cienfuegos, Cuba; E: protoconcha; F-G: microescultura.
In our opinion, R. carinata and T.
goniogyrus may be the same
species, and the different size of the
umbilical callus is not enough for a
specific separation. The problem is
that the shells identified by K.J.
Bush as R. carinata in USNM were
18
not found. So, lacking comparative
material, we keep both species-
level taxa waiting until more mate-
rial from the type locality is
obtained in the future in order to
decide if there is any specific dif-
ference.
RUBIO £7 412.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Teinostoma lenticulare (H.C. Lea, 1846) (Figures 7A-K)
Rotella lenticularis H.C. Lea, 1846. Trans. Amer. Philos. Soc., 9: 264, pl. 36, fig. 79. [Type locality:
Petersburg, Virginia, Neogene fossil!].
Type material: Type material in ANSP. Not examined.
Other material examined: Cuba: 12 s, Cienfuegos Bay, 22%07'N 80%27'W, 9 m (MHNS); 5 s, Cien-
fuegos Bay, sta. 12a, 22"07'N 80%26'W, 4 m, 19 s, Cienfuegos Bay, 10 m (MHNS); 1 s, Cienfuegos
Bay, 20-30 m (MHNS); 15 c, Cienfuegos Bay, 10 m; 6 c, Cienfuegos Bay, 12 m (MHNS).
Description: This is the short original
description: “Shell lenticular, depressed,
thin, smooth, polished, spire very short,
sub-ovate; obtuse; sutures small, linear;
whorls four, convex; last whorl angulate;
base smooth; callus small; mouth sub-
rotund; columella broad, curved”. At
same time H.C. Lea comments: “The
angle of the last whorl is very variable. It
sometimes amounts almost to a carina.
The mouth is nearly round. The callus is
slightly depressed below the surrounding
surface. This shell is, in part, allied to
both the preceding species [Rotella cari-
nata], but differs in the number of whorls,
shape of the columella and spire, and the
angle on the last whorl. They also differ
much in thickness”.
The shell (Figs. 7A-H) has the shape
of a small trochoid, relatively solid, with a
shagreen appearance due to minute
punctae. Protoconch (Figs. 71-J) of about 1
34 whorls and with about 310 um in diam-
eter, ornamented with very small and dis-
persed tubercles and 4-5 very fine spiral
threads. Teleoconch of about 1 Y whorls,
rapidly expanding; the whorls are totally
covered by very small punctiform pits,
clearly separated from each other, spirally
aligned and very dense. The middle of
the last whorl is angular, and this angle is
almost at the periphery, fading progres-
sively and almost disappearing near the
aperture. In adult specimens, from the
last Y. whorl a thickening of the inner lip
is present extending and projecting over
the umbilicus nearly totally covering it
and forming the characteristic callus of
this species (Figs. 7 E-F). This callus can
be observed in several degrees of devel-
opment (Fig. 7K). The different forms of
umbilical occlusion are related to the age
and development of the individual.
Dimensions: Holotype 1.6 mm in
diameter by 0.95 mm in height. Our
largest shells measure 1.3 mm in diameter
and 0.80 mm in height.
Habitat: The shells studied were col-
lected in sediments between 4 and 30 m in
depth, on a coralline sand bottom.
Distribution: Only known as recent
species from Cienfuegos, Cuba.
Remarks: T. lenticulare is a fossil
species described from the Miocene of
Smithfield, Virginia, Yorktown Formation.
BusprY (1953: pl. .50, figs. 3-3d),
figured shells of T. lenticulare with sizes
between 1.65 mm and 1.80 mm, and com-
pared them to the type of Lea, with the
intention of making a comparison with
shells of T. goniogyrus. He did not
mention any similarity to T. incertum,
commenting that it is less depressed than
T. goniogyrus, which in the first half of the
last whorl is clearly angled, rather than
keeled, and the angulation becomes
obscure near the labrum. The columella is
not clearly marked towards the external
part from the umbilical callus.
MOORE (1964) also did not mention T.
lenticulare. Further, he made no reference
to T. lenticulare in his discussion of T.
incertum only making a comparison to T.
parvicallum.
In this species as well as others the
callus form is very variable, and this is
due to different developmental stages of
the shell.
Teinostoma lenticulare as well as T.
goniogyrus, T. reclususm, T. ciskae and T.
baldingeri spec. nov. (see below), have a
microsculpture formed by very small
punctiform pits, clearly separated from
each other, and spirally aligned. In con-
trast T. incertum, has punctiform pits at
the beginning, of the teleoconch, but they
immediatly become incised spiral lines or
sulci.
lberus 23220
ES
y
22999
AA E
JS
Figures 7A-K. Teinostoma lenticulare (H.C. Lea, 1846). A-H: shells in several positions, 1.1-1.3
mm, all from Cienfuegos Bay. l: protoconch; J: detail of the protoconch; K: detail of the umbilicus
and microsculpture.
Figuras 7A-K. Teinostoma lenticulare (H.C. Lea, 1846). A-H: conchas en diferentes posiciones, 1,1-
1,3 mm, todas de la Bahía de Cienfuegos. I: protoconcha; J: detalle de la protoconcha; K: detalle del
ombligo y microescultura.
20
RUBIO £7 4£.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Teinostoma reclusum (Dall, 1889) (Figures 8A-G, 9A-F)
Ethalia reclusa Dall, 1889. Bull. Mus. Comp. Zoology, 18: 361, pl. 28, figs. 7. [Type locality:
Yucatan Strait, 640 fms (1157 m); North Carolina, 12-63 fms (22-113 m)].
Type material: Syntype in MCZ (007552), from off Yucatan Strait, in 640 fms (1157 m) (Figs. 8A-G).
This shell is here designated as the lectotype.
Other material examined: Florida, USA: 11 s, 32 mi. E St. Augustine, St. Johns Co., dredged 30 m
(CHD); 1 s, 65 mi. ESt. Augustine, St. Johns Co., dredged 53 m (CHL); 4 s, 29 mi. E Mayport, Duval
Cop23 mi (GEL)
Description: This is the original
description in DaALL (1889a): “Shell
small, when fresh, vitreous transparent
white, of three visible whorls, the last
much the largest, smooth and polished
above, or with only faint incremental
lines below; periphery rounded, spire
and base moderately rounded; margin
of last whorl appressed at the suture so
that the thin edge runs up over the pre-
ceding whorl and the real suture is
almost invisible in fresh specimens; the
outline of the preceding whorl being
visible through the shell, the appear-
ance of a suture is presented much
nearer the periphery than the suture
really is. Aperture nearly circular,
obligue; the columella thick, appressed;
umbilical callus sparse, not polished, in
adolescent specimens not quite com-
pieles
We add: The shell (Figs. 8A-D, 9A-C)
has 3 9% whorls, 2 corresponding to the
protoconch and 1 % to the teleoconch.
The protoconch (Fig. 8FE, 9D) is relatively
large, about 260 um in diameter, appar-
ently smooth and two phases can be
observed separated by a varix. The teleo-
conch is totally covered by rounded
micropits clearly separated from each
other, spirally aligned (Fig. 8G, 9E-F).
The periphery of the last whorl is slightly
angled near the base. Aperture quadran-
gular and peristome thick. Parietal callus
wide. Columella and external lip wide
and reflected outward. Base slightly
convex, with a wide callus covering all
the umbilicus.
Dimensions: The figured lectotype
measures 1.7 mm in maximum diameter
and 0.9 mm in height (ratio H/D= 0.52).
Habitat: This species is considered
as being from deep water, having been
described from shells collected in the
Yucatan Strait in 1152 m depth (640
fathoms). In North Carolina (DALL,
1889) it was collected between 12 and 63
fms (22-113 m), on sandy and gravelly
bottom in the warmer area. ODÉ (1987)
recorded it at 22 m from North Carolina.
LEE (2009) recorded it at 65 miles east of
St. Augustine, St. Johns Co., Florida,
dredged at 53 m.
Distribution: USA: North Carolina
(JOHNSON, 1934; ODÉ, 1987a); Florida
(LEE, 2009); Gulf of Mexico, 640 fms
1057 m; Yucatan Strait, Gulf of Mexico,
640 fms (1057 m) (DaLL, 1889a).
Remarks: DALL (1889) reported the
following: “This species is nearest to
Ethalia diaphana d'Orbigny, so far as
the base is concerned, but resembles E.
anomala d'Orbigny in its upper surface,
and was inadvertently referred to that
species in my Preliminary Report (Bull,
IX, p. 52). It has, however, a more ele-
vated shell and a proportionately larger
last whorl, while E. anomala has no
basal callus over the umbilicus”.
The figure in PiLsBRY (1953, pl. 56,
fig. 5) of the holotype of T. subconicum
(H.C. Lea) is very similar to that of the
holotype of Ethalia reclusa Dall, differ-
ing in the size of the callus, which does
not totally cover the umbilicus and also
because it lacks any microsculpture on
the shell.
One of the distinguishing characters
of T. reclusum are the micropits aligned
spirally, which completely cover the
shell. This character was not mentioned
by DaLL (1889) in the original descrip-
tion but was mentioned by LEE (2009,
fig. 328) despite the companion shell
figure appearing a little different from
the lectotype.
A]
Iberus, 29 (2), 2011
Figures 8A-G. Teinostoma reclusum (Dall, 1889), lectotype from Yucatan Strait, 1.7 x 0.9 mm
(MCZ 007552). A-C: optical photographs; D-E: SEM micrographs; F: protoconch; G: detail of
the microsculpture.
Figuras 8A-G. “Teinostoma reclusum (Dall, 1889), lectotipo del Estrecho de Yucatán, 1,7 x 0,9 mm
(MCZ 007552). A-C: fotografías ópticas; D-E: microfotografías MEB; F: protoconcha; G: detalle de la
microescultura.
2
RUBIO £7 4L.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 9A-E Teinostoma reclusum (Dall, 1889). A-C: shells, St. Augustine, St. Johns Co., Florida
(CHL); D: protoconch; E-F: microsculpture.
Figuras 9A-E Teinostoma reclusum (Dall, 1889). A-C: conchas, St. Augustine, St. Johns Co., Florida
(CHL); D: protoconcha; E-F: microescultura.
T. reclusum could be grouped with
T. ciskae-T. goniogyrus-T. lenticulare, all
of which have their surface covered by
pits.
T. ciskae is more globose and has
fewer, larger micropits.
From T. goniogyrus and T. lenticulare
it differs in having a smooth protoconch,
the lack of spiral lines of micropits and
the peripheral keel.
LEE (2009: 69; no. 328) figured this
species (SEM).
IS
Iberus, 29 (2), 2011
Teinostoma baldingeri spec. nov. (Figures 10A-I)
Type material: Holotype (Figs. 10A-G) in MCZ (243769).
Type locality: At 3-4 miles S of Fort de France, St. Louis, Martinique, in 25-29 m.
Etymology: The specific name honors Adam J. Baldinger, Molluscs Collections Manager at the MCZ
for his help in this paper.
Description: Shell (Figs. 10A-C) of
very small size, whitish in color, almost
transparent, shining, with a low spire,
rounded periphery and globose appear-
ance. The minute protoconch (Fig. 101)
has about 1 whorl, is apparently
smooth, and measures 180 um in diame-
ter. The teleoconch has about 2 whorls,
the suture is distinct, the periphery
rounded, and is totally covered by
micropits spirally aligned. The last
whorl covers approximately 2/3 of the
penultimate. Aperture oblique, subcir-
cular; columella arched. Umbilical area
concave, umbilicus completely covered
by a thick callus that extends from the
columella and which is characteristic of
the species.
Dimensions: Holotype is 1.0 mm in
maximum diameter.
Habitat: Dredged in 25-29 m.
Distribution: Only known from St.
Louis, Martinique, the type locality.
Remarks: Despite its small size, we
believe that the shell studied corre-
sponds to an adult, if we consider the
formation of the outer lip and col-
umella, as well as the development of
the umbilical callus.
Teinostoma baldingeri spec. nov.
could be confused with other species of
the genus Teinostoma such as T. ciskae,
T. gontogyrus, T. lenticulare , T. anasto-
mosis and T. reclusum, which have the
same ornamentation, formed by micro-
pits spirally aligned.
T. ciskae is more globose and its
micropits are larger.
T. goniogyrus has a peripheral keel.
T. lenticulare has a peripheral keel
and a protoconch with sculpture.
T. reclusum, is more depressed
(ratio LM D=-0 02 as aciterent
umbilical callus, and the spiral
microsculpture is formed by aligned
micropits.
T. anastomosis spec. nov. (see
below) has its first whorl totally
covered by spiral irregular interdigitat-
ing microcordlets.
Teinostoma incertum Pilsbry £2 McGinty, 1945 (Figures 11A-E)
Teinostoma (Idioraphe) incertum Pilsbry £e McGinty, 1945a. The Nautilus, 59: 7, pl. 1, fig. 7.
[Type locality: Off Destin, northwest Florida].
Type material: Holotype of T. incertum in ANSP (181118). Not examined.
Other material examined: Florida, USA: 2 s, 1 m, Shoals reef, Shoals, Key West, Monroe Co. (CHL);
1 sp and 7 s, 32 mi E. St. Augustine, St. Johns Co., 30 m. dredged (CHL); 3 s, 23 mi ENE Mayport,
Duval Co., 28 m (CHL); 2 s, 29 mi. ESE Mayport, Duval Co., 29 m, sand shell bottom (CHL).
Description: This is the original
description: “The shell is depressed
but with a low-conic spire with dis-
tinct suture, a bluntly subangular
periphery, microscopic spiral stria-
tion and very little umbilical callus.
Wiorls 3, convex, wuthimpressed
linear suture, the peripieryloj last
whorl very obtusely subangular. The
base is moderately convex, concave
24
around the center. The oblique, circu-
lar aperture 1s somewhat angular
above. Peristome blunt but rather
thin outwardly; the columella very
thick, passing into a moderate pari-
etal callus. Behind the columellar
thickening an umbilical callus closes
the umbilicus, its edge 1ll-defined
except towards the front of the shell,
where it terminates in a rather deep
RUBIO ET 4£.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 10A-I. Teznostoma baldingeri spec. nov. A-C: holotype, 1 mm, optical photographs (MCZ
243769); D-G: holotype, SEM micrographs; H: microsculpture; l: protoconch.
Figuras 10A-1. Teimostoma baldingeri spec. nov. A-C: holotipo, 1 mm, fotografías ópticas (MCZ
2437069; D-G: holotipo, microfotografías MEB; H: microescultura; Í: protoconcha.
Iberus, 29 (2), 2011
A A A
10 um
Figures 11A-E. Teinostoma incertum Pilsbry 8 McGinty, 1945. A-B: shell, 1.44 mm, Pelican
Shoals, Florida (CHL); C: protoconch; D-E: microscupture.
Figuras 11A-E. Teinostoma incertum Pilsbry 4% McGinty 1945. A-B: concha, 1,44 mm, Pelican
Shoals, Florida (CHL); C: protoconcha; D-E: microescultura.
26
RUBIO £7 4L.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
eres ema deter ico mimi event
0.95 mm”.
There is a better and more com-
plete description for T. incertum in
MOORE (1964: 88-89).
The shell (Figs. 11A-B) is small,
trochoid, relatively solid, with a
shagreen appearance due to
minute punctae. Protoconch (Fig.
11C) of about 2 whorls and about
380 um in diameter, ornamented
with randomly distributed tuber-
cles and a line of tubercles close to
the suture, the varix at the transi-
tion to the teleoconch is not thick-
ened. Teleoconch of about 1 »
whorls, increasing rapidly; whorls
totally covered by pits in spiral
lines connected by shallow
grooves which transform them into
incised lines. Periphery subangu-
lar, not tangulated or keeled.
Umbilicus totaly covered by
numerous layers of callus originat-
ing behind the columella.
Dimensions: Holotype 1.6 mm
in diameter by 0.95 mm in height.
Our largest shells measure 1.44
mm in diameter.
Habitat: Marl bottom, in 32-36
m (PILSBRY € MCGINTY, 1945a).
Depth: 11 to 55 m. The shells
studied were collected in sedi-
ments obtained at 1 m near the
base of the reef. MOORE (1964) con-
sidered it as “a shallow shelf
species along the Florida coasts”.
Distribution: Known from the
USA: East Florida, West Florida,
Texas (PILSBRY € MCGINTY, 1945a;
MOORE, 1964; Lyons, 1989; LEE,
2009) Elomda and. the east of
Brazil (Rios, 1994).
Remarks: PILSBRY € MCGINTY
(1945a) mention, based on the
incomplete callus and the final
suture, that the name “incertum”
does not refer to the validity of the
species but to its systematic place-
ment. They also comment that the
minute spiral striation is too small
to be shown in the figure of the
holotype, suggesting that it is not
present in beached shells.
It is curious to see that PILSBRY
(1953 tin OESSON ET “AL5 11953)
fisured shells of. T. lenticulare in
comparison with T. goniogyrus but
did not mention the existence of T.
incertum, a species described by
himself (PiLsBRY é MCGINTY,
1945a: 7) which has a significant
similarity in shell shape. MOORE
(1964) also did not mention T.
lenticulare. Further, he considers T.
incertumo close to 1. parvicallum,
from which it is differentiated by
the spiral sculpture and the deeper
suture. The umbilical callus, which
is projected onto the lower part of
the peristome, can also help in the
identification.
We think that the characteristic
callus of T. incertum is simply due
to the consideration of less than
fully-developed specimens.
T. incertum is a species charac-
terized by the microsculpture of
the teleoconch, beginning with
connected, vs. isolated, pits which
promptly transform themselves
into spiral lines completely cover-
ing the shell. T. ciskae, T. gonio-
ouas, de tenmbiculare, 0 re clususnt,
and 1 buldingert- are different
because the microculpture is
formed by discrete punctiform pits
spirally aligned but distinctly iso-
lated from their neighbors.
LEE (2009: 68; no. 324) provided
a SEM of a specimen missing some
of its outer lip.
Teinostoma anastomosis spec. nov. Rubio, Rolán éz Lee (Figures 12A-E)
Type material: Holotype (Figs. 12A-C) deposited in FLMNH (448607).
Type locality: Channel east of Seahorse Key, Cedar Keys, Levy Co., Florida, dredged 4.5-7 m.
Etymology: The specific name is in reference to the interdigitating sculpture on the early postnu-
clear whorls.
2
Iberus, 29 (2), 2011
Figures 12A-E. Teinostoma anastomosis spec. nov. Rubio, Rolán 82 Lee. A-C. holotype, 1.79 mm,
Channel east of Seahorse Island, Cedar Keys, Levy Co., Florida (FLMNH); D: microsculpture; E:
microsculpture and protoconch.
Figures 12A-E. Teinostoma anastomosis spec. nov. Rubio, Rolán (Y Lee. A-C. holotipo, 1,79 mm,
Canal este de Seahorse Island, Cedar Keys, Levy Co., Florida (FLMNA); D: microescultura; E: micro-
escultura y protoconcha.
28
RUBIO ET 4L.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Description: Shell (Figs. 12A-C)
solid, with trochoid aspect, a little
wider than high (H/D= 0.75), and spire
formed by 4 whorls. Protoconch (Fig.
12E) apparently smooth, measuring
about 370 um in diameter, with 1 %
whorls and with two stages, each
delimited by a thick varix. The teleo-
conch has 2 Y4 whorls, the suture is dis-
tinct, the periphery rounded and
totally covered by spiral irregular
microcordlets (Figs. 12D-E) tend to fuse
on the first whorl, producing micropits
in their interspaces. Aperture rounded,
slightly prosocline; columella thick-
ened behind, without any canal, and
with a callus which extends parallel to
and behind it, partially closing the
umbilicus.
Dimensions: Holotype is 1.79 mm in
maximum diameter and 1.34 mm in
height (ratio H/D= 0.75).
Habitat: Dredged between 4.5 to 7 m.
Distribution: Only known from the
type locality.
Remarks: Teinostoma anastomosis
spec. nov. may be distinguished from T.
ciskae, T. goniogyrus, T. lenticulare, T.
baldingeri and T. reclusum, because all
these have a microsculpture formed by
rounded micropits spirally aligned.
T. incertum and T. panamense have
the same ornamentation formed by
incised spiral lines, but T. incertum has
a subangular periphery, and T. pana-
mense is ornamented by widely-spaced
punctiform incisions and has a striated
umbilical callus.
Teinostoma panamense spec. nov. Rubio, Rolán €: Lee (Figures 13A-D)
Type material: Holotype (Figs. 13A-B) deposited in F.MNH (448606).
Type locality: Portobello, Panama.
Etymology: The specific name alludes to the country where the species was collected.
Description: Shell (Figs. 13A-B)
solid, with trochoid aspect and spire
slightly elevated; formed by 4 whorls.
Protoconch (Fig. 13C) a little uncleaned
in the sutural area, without tubercles or
spiral sculpture, measuring about 350
um in diameter, with 2 whorls, delim-
ited by a weak varix. The teleoconch has
2 whorls, is covered entirely by micro-
pits aligned spirally, which initially are
rounded and are closer, becoming some-
what more punctiform incisions (Fig.
13D). Suture covered by a thin horny
layer uncemented. Periphery rounded,
not keeled, angular, or subangular.
Aperture rounded, slightly prosocline.
Columella not thickened, separated
from the callus by a shallow groove at
its outer edge. Base slightly concave. A
thick striated callus completely occludes
the umbilicus.
Dimensions: Holotype is 1.40 mm in
maximum diameter.
Habitat: Unknown. Material studied
from drift sample.
Distribution: Only known from the
type locality.
Remarks: Teinostoma panamense
spec. nov. can be distinguished from T.
ciskae, T. gontogyrus, T. lenticulare, T.
baldingeri and T. reclusum because all
of these have a microscupture formed
by rounded micropits spirally aligned.
T. incertum and T. anastomosis have
the same ornamentation formed by
incised spiral lines. But T. incertum has
a subangular periphery and T. anasto-
mosis is ornamented by spiral irregular
microcordlets which are fused occasion-
ally between them on the first whorl,
presenting micropits in their inter-
spaces.
Teinostoma biscaynense Pilsbry £ McGinty, 1945 (Fig. 14A-D)
Teinostoma (Idioraphe) biscaynense Pilsbry £ McGinty, 1945a. The Nautilus, 60: 5, pl. 1, fig. 4.
[Type locality: Biscayne Bay at Coconut Grove, Florida].
Za
Iberus, 29 (2), 2011
Figures 13A-D. Teinostoma panamense spec. nov. Rubio, Rolán 82 Lee. A-B: holotype, 1.4 mm,
Portobello, Panama (FLMNH); C: protoconch; D: microsculpture.
Figuras 13A-D. Teinostoma panamense spec. nov. Rubio, Rolán € Lee. A-B: holotipo, 1,4 mm, Por-
tobello, Panamá (ELMNAH); C: protoconcha; D: microescultura.
30
RUBIO £7 AL.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Type material: Holotype in ANSP (181104). Not examined.
Other material examined: Florida, USA: 1 s, 50-60 mi. E Ponte Vedra, St. Johns Co., 45 m (CHL); 1
s, Pelican Shoals, Key West, Monroe Co., 1 m, edge of reef (CHL); 1 s, 32 mi. E St. Augustine, St.
Johns Co., 30 m (CHL); 1 £, Anclote Key, Pasco Co., sand bar (CHL). ABC: 3 s, off Palm Beach, Aruba,
5 m (CHL). Cayman Islands: 1 s, 100 m off Seven Mile Beach, 30 m, base of coral, Grand Cayman
(CHL). Virgin Islands: 2 s, Dead Man Reef, 18 m (CHL). Panama: 1 s, Colín Is., Bocas Islands (CEG).
Bahamas: 3 s, South Riding Rocks, Cay Sal Bank, 28 m, base of live coral reef (CHL). Cuba: 7 s, Gua-
jimico (MHNS).
Description: Original description in
PILSBRY é MCGINTY (1945a): “The
strongly depressed shell is glossy and
smooth except for fine weak growth-
lines; about equally convex above and
below, with rounded periphery and
small umbilical callus. There are about 3
le whorls, the first projecting, the next
rather narrow and flat, the last whorl
increasing very rapidly. The suture is
distinct, visibly impressed, not obscured
by overlaid callus. The broadly ovate
aperture is rather strongly oblique,
angular above. The upper margin is
thin, arching rather strongly forward.
The columella is rather thick, rounded,
reflected in a broad callus covering the
umbilicus and passing into a rather thin
parietal callus, which is thickened in the
posterior angle of the aperture. Diame-
ter 1.8 mm, height 0.9 mm”.
In our material it is possible to see
that the largest shell has most of the col-
umellar callus while there is a fine
coating covering the suture.
Habitat: It lives in shell sand in Bis-
cayne Bay at Coconut Grove and near
Baker”s Haulover, also on rocky sand
bars (PILSBRY €££ MCGINTY, 1945a). Itis a
common inshore and shallow coastal
water species in the southeastern United
States (MOORE, 1964).
Distribution: Teinostoma (Idioraphe)
biscaynense has been recorded from Bis-
cayne Bay at Coconut Grove, Florida
(PiLSsBRY € MCGINTY, 1945a); from East
Florida, West Florida and Texas
(MOORE, 1964); from Florida Peninsula
(COOLEY, 1978); from Florida to Texas
(EMERSON éz JACOBSON, 1976; LYONS,
1989; LEE, 2009); from Mexico: Tabasco
(GARCÍA-CUBAS éz REGUERO, 1990) and
Veracruz (REGUERO ET AL., 1991); from
Abaco, Bahamas (REDFERN, 2001). Now
recorded from Panama and Cuba.
Remarks: In the original descrip-
tion, PILSBRY 6: MCGINTY (1945a) make
reference to its similarity to T. reclusum
in size and in the small columellar
callus, being different because the spire
of the latter species is more elevated,
and the upper margin of the lip is also
different.
MOORE (1964: 95) remarked that he
had examined the types of T. biscay-
nense, T. nesaeum and T. obtectum,
deposited in the ANSP, commenting
that the type of de T. biscaynensis is a
juvenile beached shell which had lost a
great part of the dorsal callus; that of T.
obtectum is also a beached shell but in
better condition; finally, that of T.
nesaeum is a specimen collected alive
with soft parts remaining in the shell.
After the comparison of the three types
with hundreds of shells from Biscayne
Bay, he commented that no differences
between them were found except those
related to variation in size. As for the
spiral cordlets on the dorsum present
in the shells of T. nesaeum, he did not
consider them an important taxonomic
character, making reference to them as
“extremely evanescent”. Thus, he con-
cluded that T. biscaynense, T. obtectum
and T. nesaeum were the same species
giving T. biscaynense, the first species
published in the same work, priority.
We do not agree with this conclu-
sion, and, as we will show in the
description and figures, each one has
constant taxonomic characters sufficient
to consider them as valid species just as
they were described by PiLSBRY «
MCGINTY (1945a). The shells pho-
tographed agree perfectly with the
material described and figured by
PILSBRY € MCGINTY (1945a: fig. 4).
MOORE (1964) also stated that T. bis-
caynense is different from the other
3]
Iberus, 29 (2), 2011
Figures 14A-D. Teinostoma biscaynense Pilsbry 82 McGinty, 1945. A: shell, 1.3 mm, Florida
(CHL); B-C: shells, 1.2, 1.36 mm, Guajimico, Cuba (MHNS); D: protoconch, from Cuba.
Figuras 14A-D. Teinostoma biscaynense Pilsbry e McGinty, 1945. A: concha, 1,3 mm, Florida
(CHL); B-C: conchas, 1,2, 1,36 mm, Guajimico, Cuba (MHNS); D: protoconcha, de Cuba.
species of the genus Teinostoma from
shallow water in the West Indies
because it has the spire totally covered
by a fine callous coat. Also, this charac-
32
ter made it similar to T. cryptospira (= T.
umbilicatum), a species from deep
water off Cape Hatteras, North Car-
olina.
RUBIO ET 4L.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
We do not agree with this because
PiLSBRY € MCGINTY (1945a) stated in
their original description: “The suture is
distinct, visibly impressed, not obscured
by overlaid callus”. In relation with the
protoconch: “There are about 3 Y
whorls, the first projecting, the next ...”
Based on this passage, the spire of T. bis-
caynense cannot be totally covered by a
callous coating, as is emphasized by
MOORE (1964: 96, 98). This discrepancy
may reflect an error in the identification
of the examined types.
T. biscaynense differs from a group
of species formed by T. umbilicatum
(=T. cryptospira), T. nesaeum, T. obtec-
tum, T. lerema and T. clavium, because
in these a fine callous coat covers the
spire, partially or totally, the protoconch
being hidden in some of them.
Teinostoma obtectum Pilsbry € McGinty, 1945 (Figures 15A-B)
Teinostoma (Idioraphe) obtectum Pilsbry €£z£ McGinty, 1945a. The Nautilus, 59: 6, pl. 1, fig. 6.
[Type locality: “Treasure Island”, the first islet south of Singer Bridge, northern end of Lake
Worth, Palm Beach, Florida].
Type material: Holotype in ANSP (181121). Not examined.
Material examined: Florida, USA: 1 s, 29 mi. ESE Mayport, Duval Co., Fl., 23 m(CHL); 1 s, just S
jetty, Anastasia Island, St. Augustine Beach, St. Johns Co. (CHL); 1 s, beach, Indian Pass, Port St.
Joe, Gulf Co. (CHL).
Description: This is the original
description of PILSBRY € MCGINTY
(1945a): “The moderately solid smooth
shell is strongly depressed, trans-
versely dilated, the spire covered with
a translucent glaze through which the
suture shows. About three rather
rapid ly increasing but regularly spiral
whorls are visible through the sub-
transparent callous coat over the spire,
which superficially shows no trace of
the suture. The periphery is rounded,
the base not very convex. Aperture is
rounded, but angularly produced and
slightly channelled above and with a
flattened parietal outline. Outer margin
of peristome thin, the concave col-
umella rather thick, passing into the
rather large and slightly convex umbili-
cal callus. Parietal callus is rather thick.
Diameter 2.2 and 1.65 mm, height 0.95
Maximum reported size: 2.2 mm
Habitat: Shell sand bottom (PILSBRY
$ MCGINTY, 1945a). Bathymetric range
0 to 500 m.
Distribution: USA: Florida: East
Florida (PILSBRY éz MCGINTY, 1945a;
MOORE, 1964: 4; LEE, 2009: 68); Mexico:
Campeche State, Yucatan State, Quin-
tana Roo (VOKES é€ VoOKeEs, 1984);
Venezuela: unlocalized (Princz, 1982a);
Puerto Rico (WARMKE éz ABBOTT, 1961).
Remarks: After the description of the
species PILSBRY é MCGINTY (1945a)
mention: “The elliptical outline, the
strong depression, and the callus
smoothly covering the spire, distinguish
this species, which is known by a single
shell. A small nick in the outer lip was
restored in the figure”.
MOORE (1964: 97) stated: “The types
of Teinostoma biscaynensis, T. nasaeum
and T. obtectum have been examined by
the writer. That of T. biscaynensis is a
worn dead shell which has lost most of
the dorsal shelly callus. The type of T.
obtectum is also a dead shell, but is in
much better condition. It is near the
maximum size of the species. The type
of T. nasaeum was taken alive, and the
soft parts still remain in the shell. The
writer has compared all three types with
each other and with several hundred
specimens from Biscayne Bay, and can
find no differences other than those
resulting from wear and tear or varta-
tion in size. As T. biscaynensis is the
jurst aspectes listed. 1n- PIESBRY 6
MCGINTY (19454), it is given page prece-
dence, and the other two species are
placed in synonomy”.
39
Iberus, 29 (2), 2011
Figure 15A-B. Teinostoma obtectum Pilsbry £ McGinty, 1945. A-B: shell, 1.9 mm, Port St. Joe,
Gulf Co, Florida (CHL).
Figura 15A-B. Teinostoma obtectum Pilsbry e McGinty, 1945. A-B: concha, 1,9 mm, Port St. Joe,
Gulf Co, Florida (CHL).
We can not agree with this opinion,
because the descriptions and the figures
of the original papers given by PILSBRY
éz MCGINTY (1945a) of these three
species synonymized by MOORE (1964)
have been enough to identify the mater-
ial studied in them. Our only explana-
tion is that there was mixing of the type
material deposited in the museum. The
shells photographed agree perfectly
with the material described and figured
by PILSBRY € MCGINTY (1945a: fig. 6).
There is a real confusion between T.
biscaynense and T. obtectum because
the latter species was described from a
single shell and also because neither
was figured with its original descrip-
tion. They were then placed in syn-
onymy by MOORE (1964), whose judge-
ment was accepted. T. obtectum differs
from T. biscaynense in having the spire
totally covered by a fine callous coating,
and also in the shape of the umbilical
callus.
Teinostoma expansum spec. nov. (Figures 16A-G)
Type material: Holotype (Fig. 16A) deposited in MNCN (15.05 /55063). Paratypes in USNM (1155031,
1 s, Fig. 168) and MNHN (24402, 1 s, Fig. 16C).
Other material examined: Cuba: 2 sp and 4 s, Cienfuegos Bay, 22"07'N 80%27'W, 9 m (MHNS).
Type locality: Cienfuegos Bay, Cuba.
Etymology: The specific name refers to the expansion of the aperture.
34
RUBIO £7 4£.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
um
e
Figures 16A-G. Teinostoma expansum spec. nov. A: holotype, 1.1 mm (MNCN). B-C: paratypes, 1.2,
1.3 mm, Cienfuegos, Cuba; D: protoconch; E: detail of the umbilical callus; F: operculum; G: radula.
Figuras 16A-G. Teinostoma expansum spec. nov. A: holotipo, 1,1 mm (MNCN). B-C: paratipos, 1,2, 1,3
mm, Cienfuegos, Cuba; D: protoconcha; E: detalle del callo umbilical; E: opérculo; G: rádula.
Description: Shell (Figs. 16A-C)
depressed, the spire totally covered by a
fine callous surface which even hides
the protoconch (Fig. 16D). By transillu-
mination 3 Y spiral whorls can be seen,
the last one rapidly expanding and
smooth except for fine growth lines.
Aperture ovoid, oblique and wide;
external lip sharp, projected outward.
Columella (Fig. 16E) wide, rounded,
reflected in a large callus which cover
the umbilicus.
Dimensions: The largest shells
studied were 1.3 mm in diameter.
35
Iberus, 29 (2), 2011
Operculum (Fig. 16F) multispiral
with a central nucleus.
Radula (Fig. 16G) taenioglossate,
with formula 2+1+R+1+2. Central tooth
wide basally, the ventral margin without
denticles. Cutting area formed by a
main large and sharp cusp and 4 denti-
cles of lesser size on each side. Lateral
teeth similar to the central one, the bases
are quadrangular and also without den-
ticles; border area with a central cusp
and 5 smaller denticles at each side,
more elongated wich central tooth. Mar-
ginal teeth wide and elongate; the inner
with 28-30 slight denticles on the cutting
edge is hook shaped; the outer marginal
teeth are inclined outward in their upper
third and have 14-18 denticles on the
upper end of their internal margins.
Habitat: Our material was collected
in about 9 m depth.
Distribution: Only known from Cien-
fuegos Bay, its type locality.
Remarks: Teinostoma expansum is
close in shell characters to T. biscaynense,
T. obtectum and T. lerema, all them char-
acterized by having the spire covered
totally or partially by a fine callous coat.
Teinostoma biscayense lacks this fine
coat and the spire is free, thus allowing
the protoconch to be photographed
easily.
Teinostoma obtectum has a much
more depressed shell, and the aperture is
more deflected and oblique.
Teinostoma lerema has the aperture
slightly oblique, grooved in the upper
internal angle.
Teinostoma nesaeum Pilsbry €£ McGinty, 1945 (Figures 17A-F)
Teinostoma (Idioraphe) nesaeum Pilsbry € McGinty, 1945a. The Nautilus, 60: 5-6, pl. 1, fig. 2.
[Type locality: Missouri Key, Florida].
Type material: Holotype in ANSP (181117). Not examined.
Material examined: Cuba: 14 s, Guajimico, 15 m (MHNS); 1 s, Bahía de Cienfuegos, 20-30 m (MHNS);
15 s, Rancho Luna Beach, 30 m (MHNS).
Description: The original descrip-
tion in PILSBRY € MCGINTY (1945a: 5-6)
is as follows: “The shell is rather
strongly depressed, about equally
conver above ana elote
rounded periphery; glossy, with some
spiral striae on the upper surface,
none on the lower. There are appar-
ently about 2 Y whorls, but the sutures
are obliterated by a coat of translucent
callus which covers the spire, with a
shallow impression over the apex. The
upper surface shows shallow spiral
striae which weaken towards the
periphery and disappear on the base.
The aperture is oblique, rounded, but
acute a timneuppenmanale ole
however is filled, making the cavity
round. Outer lip blunt. Columella
thickened, passing into the rather
thick parietal callus. Umbilical callus
thick, slightly convex, a trifle rugose”.
The shells are represented in Figs.
17A-F)
36
Dimensions: Holotype 1.45 mm on
maximum dimensions (diameter). The
largest shell in our material is 1.4 mm.
Habitat: Living under stones and in
rocky sandbars (PILSBRY éz MCGINTY,
1945a: 6). Mangrove swamps, sandy
and rocky areas (VOKES € VOKES,
1984). Shallow, soft bottoms (DÍAZ
MERLANO éz PUYANA HEGEDUS, 1994).
Distribution: The species has been
collected from Missouri Key, Florida
and Biscayne Bay near Baker's
Haulover, Miami (PILSBRY € MCGINTY,
1945a:6). From Colón and Bocas island,
Panama (OLsson € MCGINTY, 1958).
From South and North Carolina to the
Caribbean Sea (HOUBRICK, 1968). From
Campeche to Carmen and Zacatal
cities, from Ninum Point to Campeche,
from El Cuyo to Ninum Point, from
Point Yalcupul to Cerritos island and
from isla Mujeres to Isla Holbox,
Mexico (VOKES éz VOKES, 1984). From
Curacao, Aruba and Bonaire (DE JONG
RUBIO ET AZz.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 17A-E Teinostoma nesaeum Pilsbry 82 McGinty, 1945, shells, 1.2, 1.2, 1.2, 1.1, 1.0, 1.4
mm, Rancho Luna Beach, Cuba (MHNS).
Figuras 17A-E Teinostoma nesaeum Pilsbry McGinty, 1945, conchas, 1,2, 1,2, 1,2, 1,1, 1,0, 14
mm, Playa Rancho Luna, Cuba (MHNS).
$ COOMANS, 1988). From North Carolina
to Panama and. Colombia (DÍAZ
MERLANO € PUYANA HEGEDUS, 1994).
Also found in Cuba: Cienfuegos.
Remarks: MOORE (1964: 95-99) placed
the taxa T. nesaeum and T. obtectum in
synonymy with T. biscaynense (see
above). We consider T. nesaeum a valid
species, easily differentiable from its con-
geners by the following characters:
dorsal ornamentation of fine spiral
cordlets; base smooth; umbilical callus
strong; suture covered by a translucent
callus coat. These characters were also
considered by PiLsBRY é MCGINTY
(1945a) as important for species separa-
tion.
All the shells studied have the
cordlets on the dorsum but not on the
base. We have not found intergradations.
3%
Iberus, 29 (2), 2011
Teinostoma semistriatum (d'Orbigny, 1842) (Figures 18A-I, 19A-F)
Trochus (Rotella) semistriata d'Orbigny, 1842. Mollusques. Histoire Physique, Politique et Natu-
relle de lVíle de Cuba 2: 61, pl. 18, figs. 20-22. [Type locality: Cuba]
Pseudorotella semistriata (4'Orbigny): In P. Fischer, 1957. Journal de Conchyliology 6: 52.
Teinostoma (Idioraphe) clavium Pilsbry €: McGinty, 1945a. The Nautilus, 60: 4, pl. 1, fig. 1. [Type
locality: Tavernier, Key Largo].
Type material: Two syntypes in NHMUK (in very bad condition). Neotype here designated of
Trochus (Rotella) semistriata in MCZ (208142), from La Chorrera, Habana, Cuba. Type species of
Teinostoma (Idioraphe) clavium in ANSP (181106). Not examined.
Other material examined: Guadeloupe: 1 s, coralline sandy and rocky bottom, 2 m (CJP). Cuba: 5
s, Matanzas, Varadero (N Cardenas) (MCZ 109344); 7 s, Archipielago de los Canarreos, 15 m (MHNS);
8 s, Cayo Diego Perez, 12 m (MHNS); 19 s, Jibacoa, 3-6 m (MHNS); 1 s, Cienfuegos Bay, 20-30 m
(MHNS); 48 s, Rancho Luna Beach, 20 m (MHNS); 2 s, Comodoro, 0 m (MHNS); 4 s, playa Girón,
5 m (MHNS). Florida USA: 1 s, Peanut Island, Lake Worth, Palm Beach Co. (CHL); 3 s, Virginia
Key, Dade Co. (CHL); Spoil bank, APAC Pit, Sarasota Plio-Pleistocene (CHL). Bahamas: 2 s, Matt
Lowes Cay, Abaco, grit (CHL); 1 s, Paradise Island, New Providence, 2 m (CHL); 6 s, West End,
Grand Bahama Island, grit (CHL). Puerto Rico: 1 s, San Juan, grit (CHL). St. Martin: 15 s, Leeward
Island, grit (CHL). Virgin Islands: 1 s, Frederiksted, St. Croix, grit (CHL).
Description: This is the original
description in D'ORBIGNY (1842): “Shell
orbicular, depressed, thin, transparent,
white, above transversely (1.e. concen-
trically) striae, beneath polished; umbil-
ical callus shining; spire very short,
obtuse, whorls four, slightly convex;
aperture oval. Diameter 1.5 mm; height
0.7 mm”.
Shell (Figs. 18A-F, 19A-E) strong,
solid, somewhat depressed, totally
covered by spiral cords. Umbilical
callus wide (Fig. 18C). Protoconch (Figs.
18G-H, 19F) with about 1 Y whorls,
smooth, about 180 um, partially
covered by the first whorl of the teleo-
conch so only the apex of the proto-
conch is visible. Teleoconch with about
2 Y4 whorls, covered with spiral cords
lacking sculpture in their interspaces
(Fig. 18D); periphery rounded. Umbilical
callus strong and wide, completely cov-
ering the umbilicus. Aperture oblique,
with a small groove on the upper inter-
nal angle which is somewhat extended
giving the shell an elongate aspect.
Dimensions: Holotype of T. clavium
2.3 mm in maximum diameter.
Habitat: This species lives in
shallow water between 0 and 18 m
depth. In Cuba it is relatively common,
1t was collected in sediments from
between 5 and 30 m.
38
Distribution: Known from USA:
Florida: East Florida, Florida Keys
(JOHNSON, 1934; PILSBRY é MCGINTY,
1945a; MOORE, 1964; LEE, 2009); Mexico:
Campeche State, Quintana Roo (ODÉ,
1987); Colombia, Venezuela: Sucre (DÍAZ
MERLANO é PUYANA HEGEDUS, 1994;
Princz, 1986); Bahamas: New Provi-
dence (MOORE, 1964), Abaco (REDFERN,
2001); Puerto Rico (WARMKE éz ABBOTT,
1961); Cuba (OrRBIGNY, 1842; P. FISCHER,
1857; ESPINOSA ET AL., 1985). Now
recorded from Guadeloupe.
Remarks: Nomen dubium according
to MOORE (1964: 81-82) who com-
mented: “The types of Pseudorotella, T.
semistriata d'Orbigny, are in the British
Museum (Natural History), but both
types have deteriorated badly and the
principle characters can not be made
out. There has been a great deal of con-
fusion with d'Orbigny's species for over
a century, and, without an authentic
specimen of T. semistriata to compare
with other species, the true characters of
the subgenus must remain in doubt. It is
impossible to say which of d'Orbigny's
(1842) species belong to the genus, and,
since the types are no longer identifi-
able, they are here considered species
indeterminate”.
We have seen this type material in
the NHMUK, and it is in very poor con-
RUBIO ET 41£.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 18A-1. Teinostoma semistriatum (d'Orbigny, 1842). A-F: shells, 1.6, 0.9, 1.6, 1.1, 2.1, 1.1
mm, Cienfuegos, Cuba (MHNS); G: protoconch; H: detail of the protoconch; I: detail of
microsculpture.
Figuras 18A-1. Teinostoma semistriatum (4'Orbigny 1842). A-F: conchas, 1,6, 0,9, 1,6, 1,1, 2,1,
1,1 mm, Cienfuegos, Cuba (MHNS); G: protoconcha; H: detalle de la protoconcha; I: detalle de la
microescultura.
3%
Iberus, 29 (2), 2011
Figures 19A-E. Teinostoma semistriatum (d'Orbigny, 1842). A-C: neotype, 2.1 mm, La Chorrera,
La Habana (MCZ 208142); D-E: shells, 1.8, 2.2 mm, Matanzas, Cuba (MCZ); F: protoconch.
Figuras 19A-E Teinostoma semistriatum (4'Orbigny 1842). A-C: neotipo, 2,1 mm, La Chorrera, La
Habana (MCZ 208142); D-E: conchas, 1,8, 2,2 mm, Matanzas, Cuba (MCZ); F: protoconcha.
dition, but in our opinion the taxon is
not a nomen dubium.
In the type material of the Museum
of Comparative Zoology (MCZ) there
were two lots labeled: “Pseudorotella
semistriata (Orb.), 5 specimens from
40
Matanzas, Varadero, Cuba” deposited
with n” 109344, which were sent by M.
L. Jaume, a well-known Cuban malacol-
ogist, and another “Teinostoma semistri-
ata d'Orb., 1 specimen from La Chor-
rera, Habana, Cuba,” with n* 208142. We
RUBIO ET ALz.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
studied them closely, and they conform
to the description of Trochus
semistriata. This species seems to be rel-
atively common along the Cuban coast,
having being found in the beached shell
grit.
In SAGRA (1842: 177) Orbigny men-
tions in relation to Rotella semistriata:
“It lives in Cuba, together with the
former (R. diaphana). It can be found in
large numbers in the sands of Playa del
Chivo y of La Chorrera; found also in
St. Thomas”.
For these reasons and in order to
keep nomenclatural stability, we have
designated as neotype the specimen
from La Chorrera, Habana, deposited in
MCZ with n” 208142 considering T.
clavium Pilsbry € McGinty, 1945 a
junior synonym.
In the original description
d'Orbigny also mentions: “beneath pol-
ished”. This means the origin of the
material employed for this description
was beached and eroded; those shells
have the base totally smooth and pol-
ished due to abrasion. However, as we
can observe in fresh shells, the base is
totally covered by spiral cordlets as is
the dorsum.
Teinostoma semistriatum is a
species easily distinguished from its
congeners by its robustness and the size
of the shell, the form of the umbilical
callus, and the ornamentation of the
teleoconch with spiral cords which
completely cover the dorsum. The pro-
toconch is partially concealed by the
first whorl of the teleoconch. As in pre-
vious species, it can form a group with
T. umbilicatum, T. biscaynense, T. nes-
saeum and T. lerema, because in all of
them the last whorl is extended cover-
ing some or all of the previous whorls.
MOORE (1964) mentions its similarity to
T. biscaynense and T. lerema.
Teinostoma minusculum (Bush, 1897) (Figures 20A-D)
Pseudorotella minuscula Bush, 1897. Transactions of the Connecticut Academy of Arts and Sci-
ences 10: 118-119, text-figs. 3a-c. [Type locality: USFC sta. 2283, off Cape Hatteras, North Car-
olina].
Type material: Holotype in USNM (41623) is a broken shell. Examined in micrograph (Fig. 20A).
Other material examined: USA: 1 s, off Dry Tortugas, Monroe Co., Florida, 20-50 fms (USNM); 1 s
(more deteriorated) ENE Mayport, Duval Co., Florida, 26 m (CHL).
Description: Original description
in BusH (1897): “Shell thick, solid, por-
cellanous, slightly tinted with yellow
along the suture and on the base; flat-
tened above and below, with the
indented umbilical region covered
with a thin lustrous glaze or layer of
enamel. Surface smooth and very lus-
trous, marked only by irregular,
microscopie, cerotota. limes. suture
inconspicuous. Whorls about 2 Y%,
coiled in the same plane, lapping well
on to each other, rapidly enlarging,
with a very small nuclear whorl and
large body-whorl. Aperture very
obligue, somewhat ovate; peritreme
not continuous, modified into a thin,
inconspicuous glaze on the body-
whorl, elsewhere with rounded edge,
with a slight callous deposit beneath
the suture where the outer-lip extends
obliquely well forward from the body-
whorl, with little, 1f any, curvature
and forms a slight sutural notch.
Greatest diameter, about 1.5 mm;
height, about 0.5 mm”. T. minusculum
has the umbilical region entirely
covered by a thin, very lustrous glaze
or layer of enamel, not in any sense a
thickened pad as in Teinostoma umbil-
icatum.
Habitat: Depth: 14 to 50 fms.
Distribution: USA: North Carolina
(Bush, 1897); Florida: East Florida
(LEE, 2009)
Remarks: This species was
described in the subgenus
Pseudorotella P. Fischer, 1857. BusH
41
Tberus 2D DONA
Figures 20A-D. Teinostoma minusculum (Bush, 1897). A: holotype, 1.5 mm, (USNM, 41623); B-
D: shell, 1.6 mm, Dry Tortugas, Monroe Co., Florida (CHL).
Figuras 20A-D. Teinostoma minusculum (Bush, 1897). A: holotipo, 1,5 mm, (USNM, 41623); B-
D: concha, 1,6 mm, Dry Tortugas, Monroe Co., Florida (CHL).
(1897) says: “This species approaches
Teinostoma cryptospira (A.E. Verrill)
Dall, but it is a much smaller shell,
with the whorls quite differently
coiled and with the umbilical callus
42
represented by a thin glaze”. Really,
the only similarity with Teinostoma
cryptospira is that both have the spire
covered by a fine callous covering. LEE
(2009: 68; no. 326) figured this species.
RUBIO £7 AZ.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Teinostoma lerema Pilsbry £ McGinty, 1945 (Figures 21A-H)
Teinostoma (Idioraphe) lerema Pilsbry £ McGinty, 1945a. The Nautilus, 60: 6-7, pl. 2, figs. 1-1a.
[Type locality: Missouri Key, Florida Keys].
Type material: Holotype in ANSP (181120). Not examined.
Other material examined: Cuba: 3 s, Cienfuegos Bay, 22%07'N, 80%27'W, 9 m (MHNS); 7 s, Cien-
fuegos Bay, 2207'N80"26'W, 4 m (MHNS). Martinique: 1 s, Pointe Borgnesse, 12 m, sand-muddy
bottom, close to the reef (CJP). St. Kitts £ Nevis: 4 s, Monkey Shoals, Nevis Island, 18 m (CHL).
Haiti: 1 s, Labaree, sand beach (CHL). Puerto Rico: 1 s, San Juan, grit (CHL). Panama: 3 s, Isla Caren-
eros, 8-9 m (CHL); 1 s, 1 mi. Punta San Blas, San Blas Island, sand bar just inside reef (CHL).
Description: Shell (Figs. 21A-G) very
small, solid, smooth and shiny. Proto-
conch (Fig. 21H) smooth, with about 2
whorls, and a diameter of about 200 um,
but usually partially covered by the first
teleoconch whorl. The teleoconch has a
little more than one whorl and is
smooth except for fine growth lines.
Suture covered by a fine callous coat.
Umbilicus totally covered by a thin
callus. Aperture oblique, rounded,
without any sulcus on the upper inter-
nal angle; the outer lip is extended
outward, giving the shell a more elon-
gated aspect.
Dimensions: Holotype 1 mm in
maximum diameter and 0.45 mm in
height. The largest of our shells is 1.0
mm in diameter.
Animal figured by PILSBRY é
MCGINTY (1945a, pl 2, fig. la).
Habitat: Living under rocks (PILSBRY
éz MCGINTY, 1945a). Collected alive
under stones between 0.6 and 16 m in
depth. The Cuban shells were found in
sediments from between 4 and 9 meters.
Records between 0 and 48 m.
Distribution: Know from the USA:
West Florida, Missouri Key (PILSBRY éz
MCGINTY, 1945a); Texas (ODÉ, 1987);
Mexico: Tabasco, Veracruz, Campeche
State (GARCÍA-CUBAS, 1971); Colombia
(Díaz MERLANO é PUYANA HEGEDUS,
1994); Virgin Islands: St. John (MOORE,
1964), Curacáo (DE JONG € COOMANS,
1988); Cuba (SARASÚA, 1970; ESPINOSA
ET AL., 1985).
Remarks: It is the smallest Teinos-
toma described up to now. Its small size,
the suture covered by a fine callous
layer and the elongated form of the
aperture differentiate it from congeneric
species. Teinostoma lerema has a certain
similarity to T. biscaynense in general
form, but the latter has the spire totally
covered by a fine callus.
Teinostoma umbilicatum (H.C. Lea, 1843) (Figures 22A-G)
Rotella umbellicata H.C. Lea, 1843. Proc. Amer. Philos. Soc., 3: 164. (Nude name).
Rotella umbilicata H.C. Lea, 1846. Trans. Amer. Philos. Soc. (new series) 9: 264, pl. 36, fig. 80.
[Type locality: Miocene of Petesburg].
Rotella cryptospira A.E. Verrill, 1884. Transactions of the Connecticut Academy of Arts and Sci-
ences, 6: 241-242 (not figured). [Type locality: USFC sta. 2109, off Cape Hatteras, North Car-
olina].
Type material: Lectotype of Rotella cryptospira USNM 35731; it was selected and figured by JOHNSON
(1989). MCZ Publications on Mollusks Occasional Papers on Mollusks, 5(67): 32, pl. 10, fig. 8. Not
examined.
Material examined: Cuba: 5 s, Rancho Luna Beach, 20-54 m (MHNS); 6 s, Cienfuegos Bay, 10 m
(MHNS). Florida, USA: 1 s, 23 mi. ENE Mayport, Duval Co., 26 m (CHL); 1 s, Jacksonville Beach,
Duval Co. grit (CHL); 2 s, Anclote Key, Pasco Co. sand bar (CHL); 7 s, channel E Seashore Key,
Cedar Key, Levy Co. 4-6 m (CHL); 2 s, Louisiana: off western part, 22 m (CHL). Jamaica: 3 s, Priory,
St. Anr's Parish, dredged shallow water (CHL). Trinidad and Tobago: Tobago: 7 s, Horse Shoe reef,
15 m, shell sand (CJP).
A3
Iberus, 29 (2), 2011
Figures 21A-H. Teinostoma lerema Pilsbry 82 McGinty, 1945; shells 1.0, 0.8, 0.7, 1.0, 0.8, 0.7, 0.9
mm, Rancho Luna Beach, Cienfuegos, Cuba (CEG).
Figuras 214-H. Teinostoma lerema Pilsbry 4 McGinty, 1945; conchas, 1,0, 0,8, 0,7, 1,0, 0,8, 0,7,
0,9 mm, Playa Rancho Luna, Cienfuegos, Cuba (CFG).
Description: Shell (Figs. 22A-C, 22E-
G) strongly depressed, smooth, rapidly
expanding. A fine callous layer covers a
great part of the previous whorl,
keeping visible the protoconch and a
44
small part of each whorl (Fig. 22D).
Periphery very rounded. Aperture
slightly oblique, rounded, grooved in
the upper internal angle. Columella
strong, reflected towards the external
RUBIO ET AL.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 22A-D. Teinostoma umbilicatum (H.C. Lea, 1843). A-C: shells, 1.9, 1.9, 1.6 mm respec-
tively, Cienfuegos Bay, Cuba; D: protoconch; E-G: 1.8, 1.6, 1.3 mm, Tobago (CHL).
Figuras 22A-D. Teinostoma umbilicatum (A.C. Lea, 1843). A-C: conchas, 1,9, 1,9, 1,6 mm respec-
tivamente, Bahía de Cienfuegos, Cuba; D: protoconcha; E-G: 1,8, 1,6, 1,3 mm, Tobago (CHL).
part forming a strong and characteristic
callus which completely covers the
umbilicus.
Dimensions: The lectotype is 2.5 mm
in maximum diameter. The largest shell
examined was 1.93 mm in diameter and
1.07 mm in height.
Habitat: A species of wide bathymet-
ric distribution, recorded between 18
and 305 m depth. DaLL (1892) collected
45
Iberus, 29 (2), 2011
it alive off the coasts of North Car-
olina and Florida in 30 to 50 fathoms,
U.S. Commission. Our material was
collected on coralline sandy bottoms
between 10 and 54 m.
Distribution: Recorded from the
USA: New Jersey, Campeche, North
Carolina and Florida (A.E. VERRILL,
1884; DaALL, 1892; LEE, 2009); from
Mexico: Campeche State (ODÉ, 1987a);
Venezuela (PRINCZ, 1982) and Cuba
(ESPINOSA ET AL., 1985).
Remarks: VERRILL (1884) says:
“This species bears some resemblance
to Rotella anomala D'Orbigny, but is
peculiar in having the whorls of the
spirecomceated o nimeanly aso 20 ele
last whorl”. DALL (1892) mentions:
“This little shell resembles T. umbili-
catum Lea in having the whorls nearly
concealed by the thinned-out edge of
e precede ono Miel es
appressed nearly to the apex. The
surface is smooth and polished. The
fossils have been identified by com-
parison with a specimen named by
the author, who has not yet figured
his species”. PiLSBRY (1953: 416, in
OLSSON ET AL., 1953) placed T. cryp-
tospira in the subgenus Idioraphe
Bilsbry 192241? eS eos
characterized because the last whorl
envelopes all of those preceeding, or
leaves only the apical whorl exposed.
The suture is developed only as an
arcuate or angular line radiating from
summit to periphery”. In this sub-
genus are included T. umbilicatum, T.
verrilli O. Meyer, 1885 and T. nanum
H.C. Lea, 1833. PiLsBRY (1953) men-
tions that in many shells observed the
callous coat in the sutural border of
the last whorl almost reaches the apex
or only the apex is free. The type of T.
umbilicatum is broken, but the apical
area 1s preserved in good condition.
The T. umbilicatum group of teinos-
tomes has continued to the present
day in species only very slightly dif-
ferent from the ancestral form, the
living representative being named T.
cryptospira.
Teinostoma altum Pilsbry, 1953 (Figures 23A-D)
Teinostoma (Pseudorotella) altum Pilsbry, 1953 (in OLSSON ET AL., 1953). Acad. Nat. Sci.
Philadelphia, Monographs 8: 413, pl. 49, fig. 2-2f. [Type locality: Plio-Pleistocene of North St.
Petersburg, Florida].
Type material: Holotype in ANSP (18398). Not examined.
Other material examined: Cuba: 2 s, Bahía de Cienfuegos, 20-30 m (MHNS).
Description: The original descrip-
tion in OLSSON ET AL. (1953) is as
follows: “The shell is solid, depressed
globose with conic spire, smooth
surface, very incomplete umbilical
callus divided from the columella by a
groove. It is often perforate, or the
umbilicus may be closed. There are
fully four moderately convex whorls
united by a distinctly impressed suture.
The last whorl is broadly rounded at
periphery, the base strongly convex,
excavated around the narrow umbilical
crevice (which is often closed). The
aperture is nearly circular, but angular
above. Peristome is rather long and
evenly concave, somewhat thickened,
46
separated from the callus by a shallow
groove at its outer edge. The umbilical
callus is a rather small, convex, lunate
lobe, which typically does not wholly
close the umbilicus”.
We show some images of shells
(Figs. 23A-C) and protoconch (Fig.
23D). We must point out these distin-
guishing characters of the species: the
elevated spire, the rounded periphery,
the groove which separates the col-
umella from the umbilical callus and
that this callus does not always cover
the umbilicus.
Dimensions: Holotype 2.2 mm in
maximum diameter and 1.6 in height.
Our largest shell is 1.50 mm in diameter
RUBIO ET AL.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 23A-D. Teinostoma altum Pilsbry, 1953. A-C: shells, 1.3, 1.4, 1.3 mm, Cienfuegos Bay,
Cuba. D: protoconch.
100 um
Figuras 23A-D. Teinostoma altum Pilsbry, 1953. A-C: conchas, 1,3, 1,4, 1,3 mm, Bahía de Cienfue-
gos, Cuba. D: protoconcha.
and 1.15 mm in height (ratio H/D:
0.76).
Habitat: The only two shells found
were from shell grit between 20 and 30 m
in depth. Elsewhere in the literature it is
reported from 0 to 139 m.
Distribution: Florida, USA: Fossil,
from the Plio-Pleistocene of St. Petersburg
(Pilsbry, 1953; Odé, 1987) Recent of: Cuba:
Cienfuegos. USA: Georgia: 57 mi E Sapelo
Is. 18-20 m (Lee, 2009). Florida: 28 mi E
ESE Mayport, Duval Co. 22.5 m (LEE,
2009).
Remarks: Fossil species described
from the Plio-Pleistocene of South Florida.
The shells from Cuba seem to be recent.
Teinostoma altum is similar to T.
cocolitoris, but the latter is larger, the spire
lower, has fewer whorls and lacks the
groove separating the columella and the
umbilical callus.
From T. parvicallum it may be differ-
entiated by the characters of the umbilical
callus. Also it is a little similar to T.
reclusum in its general form and in the
groove in the umbilical callus, but the
latter has a lower spire and a different
peripheral profile.
Another close species is Teinostoma
subconicum (H.C. Lea), described from
the Miocene of Smithfield, Virginia from
only one shell.
PrLsBRY (1953; pl. 56, fig. 5), gives a
drawing of this species showing the dif-
ferences with T. altum: the shell is more
depressed, the periphery of the last whorl
more arched, and the umbilicus is totally
closed.
A7
Iberus, 29 (2), 2011
In the web page www.jaxshell.org,
as well as in “Marine Shells of North-
east Florida” and “Select Images of
Western Atlantic Gastropods” there is a
SEM micrograph of a specimen of
Teinostoma altum called Teinostoma sp.
aff. altum, dredged in 30 m, 32 mi E St.
Augustine, Florida, which is identical to
our material from Cuba and that
figured by PiLsBRY (1953). This figure
also appears in (LEE, 2009: 67; species
no. 320)
“Teinostoma” solidum (Dall, 1889) (Figures 24A-G)
Ethalia solida Dall, 1889. Bull. Mus. Comp. Zoology, 18: 362, pl. 28, figs. 3, 5. [Type locality:
Station 19, Lat. 23%3'N, Lon. 83%10'W, off Bahia Honda, Cuba].
Type material: Syntype in MCZ (007553), from off Bahia Honda, Cuba. Range: 23.32N-83.10-W, in
567 m. This shell is here designated the lectotype (Fig. 24).
Description: The original description
in DALL (1889) is as follows: “Shell
small, solid, stout, ivory white, of three
rounded whorls, the last much the
largest. Sculpture of fine incremental
lines, sometimes faintly wrinkled near
the suture; upper surface rounded, sub-
conic, the whorls not impressed at the
suture, which is fairly distinct. Periph-
ery rounded, base subconic, umbilicus
reduced to a minute chink with a
twisted callus above it; aperture circular,
obligue, with a triangular callus at each
end of the columella; the upper margin
declining”.
We add: The shell (Figs. 24A-E) is
solid and compact, trochoid, spire
formed by 3 Y rounded whorls sepa-
rated by a distinct suture. The proto-
conch has scarcely one whorl (which is
not certain due to the difficulty in dis-
cerning the separation from the teleo-
conch). It measures about 450 um in
diameter and the nucleus 160 um. The
protoconch is short, bulbous, and is
covered by small, sharp, branching
tubercles arranged in a spiral pattern.
Teleoconch formed by 2 Y whorls,
totally smooth except for numerous
growth lines. Umbilicus almost totally
closed by a fine callous layer, which is
the extension of the columella; within, it
is possible to see two small folds which
delimit several axial striae and spiral
cordlets which cross and produce a
reticular pattern. Aperture rounded,
slightly angulate in its parietal part
portion. Parietal callus, columella and
48
internal lip strong and wide. There is no
sulcus between the columella and the
callus.
Dimensions: Lectotype 2.1 mm in
maximum diameter and 1.6 mm in
height.
Habitat: This is a fairly deep-water
species that apparently lives only on the
continental slope (MOORE, 1964). From
529-792 m.
Distribution: From Georgia to West
Florida, off Fernandina (JOHNSON, 1934).
Recorded in Bahia Honda, Cuba (DALL,
1889); Florida Keys (MOORE, 1964).
Remarks: Provisionally, we keep this
species in the genus “Teinostoma” in
quotes, uncertainty about its correct
placement for the reasons cited above.
The name Teinostoma solidum is pre-
occupied by a West African species of
E-AS SM (ds 737 pl 75 te 20)
which has all the typical characters of
the genus. But the Caribbean species
could be a Skeneid, in which case the
name would be available because it was
described in the genus Ethalia. At
present, we prefer to keep it in this
dubious status instead of creating a
replacement name.
It is necessary to point out the great
similarity of “Teinostoma” solidum to
some species of the skeneid genera
Lisomphalia, Skenea and Trochaclis.
Some deep water species of the genus
Skenea living along the coast of Iceland
and Scandinavia are characterized by
the trochoid aspect of the shell, the short
and bulbous protoconch, usually sculp-
RUBIO £7 42.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 24A-G. * Teinostoma” solidum (Dall, 189), lectotype, 2.1 x 1.6 mm Bahía Honda, Cuba
(MCZ 007553). A-C: optical photographs; D-E: SEM micrographs; E: protoconch; G: detail of
the protoconch.
Figuras 24A-G. “Teinostoma” solidum (Dall, 189), lectotipo, 2,1 x 1,6 mm Bahía Honda, Cuba
(MCZ 007553). A-C: fotografías ópticas; D-E: microfotografías MEB; F: protoconcha; G: detalle de la
protoconcha.
tured, and having an umbilicus which, species of the genus Trochaclis are char-
as in many species such as Skenea tro- acterized by a short and bulbous proto-
choides (Friele, 1876), is very narrow conch with fine spiral cordlets. WARÉN
and deep and has riblets within. The (1991: 179) reported that the genus
49
Iberus, 29 (2), 2011
Trochaclis was originally classified in
the Mesogastropoda and later trans-
ferred to the Vetigastropoda by
HICKMAN éz MCLEAN (1990) because of
the morphology of the operculum,
epipodium and ctenidium.
Due to these similarities we consider
the placement of this species in
Tornidae, subfamily Teinostomatinae as
dubious, but we mantain this clasifica-
tion until anatomical, opercular and
radular morphology allow correct sys-
tematic placement. MOORE (1964)
treated T. solidum and T. floridensis
(Dall, 1889) in a similar fashion.
“Teinostoma” solidum is more solid
and elevated than any other species
described from this region (DALL, 1889).
According to MOORE (1964: 100), the
small, bulbous and ornamented proto-
conch, subglobose shape and narrow
chink-like umbilicus and shelf within
the aperture distinguish this species
from other West Indian species.
Teinostoma lunense spec. nov. (Figures 25A-D)
Type material: Holotype (Figs. 25A-B) in MNCN (15.05/55066); a paratype in MHNS.
Type locality: Rancho Luna Beach, Cienfuegos, Cuba, 20 m.
Etymology: The specific name refers to the type locality.
Description: Shell (Figs. 25A-C)
rounded, a little higher than wide, spire
moderately elevated, with four whorls,
solid, smooth and somewhat shiny. Pro-
toconch (Fig. 25D) of about 1 Y smooth
whorls. Teleoconch with surface smooth
except for fine growth lines, periphery
rounded. Suture faintly indicated,
visible by transparency, covered by a
fine callous layer. Aperture rounded,
peristome almost continuous, internal
upper angle grooved. Columella and
inner lip rounded, reflected towards the
umbilicus, forming a characteristic
callus, wide and fine, with a half moon
crescent shaped, which partially covers
the umbilicus. There is no groove of sep-
aration between columella and callus.
Dimensions: Holotype is 1.3 mm
in maximum diameter and 0.9 mm
of in height.
Habitat: This species was col-
lected in shell grit at 20 m depth.
Distribution: Only know from
Cienfuegos, Cuba, the type locality.
Remarks: The figure in PILSBRY
(1953, pl. 56, fig. 5) of the holotype
of T. subconicum (H.C. Lea) is very
similar to this species differing in
the size of the callus, which, like a
crescent moon does not completely
cover the umbilicus.
From T. altum it may be sepa-
rated by the absence of the groove
between the columella and the
callus.
Teinostoma cocolitoris Pilsbry £ McGinty, 1945 (Figures 26A-G)
Teinostoma (Ellipetylus) cocolitoris Pilsbry £e McGinty, 1945a. The Nautilus, 59: 8-9, pl. 1, fig. 3.
[Type locality: Off Lake Worth, Palm Beach County, Florida].
Type material: Holotype in ANSP (181122). Not examined.
Material examined: Cuba: 1 s, Canarreos Archipelago, 5 m; 1 s, Cayo Diego Perez, 5 m (MHNS); 13
s and 2 sp, Cienfuegos Bay, 20-30 m (MHNS); 3 s, Rancho Luna Beach, 10-20 m (MHNS); 16 s,
Rancho Luna Beach, 10-30 m (MHNS); 10 s, Rancho Luna Beach, 45 m (MHNS); 16 s, Rancho Luna
Beach, 20-54 m (MHNS); 3 c, Los Laberintos, Rancho Luna Beach, 35 m (MHNS); 19 s and 2 sp, Faro
los Colorados, 56 m (MHNS); 2 s, Punta Tamarindo, 15 m (MHNS); 3 s, Havana, 30 m. USA: 31 s,
off Louisiana, 56-65 m (CHL). Antigua and Barbuda: Antigua, 1 s, 67 m, SE Falmouth Harbour,
dredged (CHL). Bahamas: 1 s, French Bay, San Salvador, 15 m, sand ledge (CHL); 4 s, Samphire
Cay, NW Nassau, 15 m, base of reef (CHL). Jamaica: 3 s, Priory, St. Anr's, Parish, shallow water
(CHL). ABC Islands: 1 s, off Klein Bonaire, Bonaire, 38 m, base of reef (CHL).
50
RUBIO E7 42.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 25A-D. Teinostoma lunense spec. nov. A-B: holotype, 1.3 mm, (MNCN); C: 1.5 mmm,
paratype; both from Rancho Luna Beach, Cienfuegos, Cuba; D: protoconch.
Figuras 25A-D. Teinostoma lunense spec. nov. A-B: holotipo, 1,3 mm, (MNCN); C: 1,5 mmm, para-
tipo; ambas de Playa Rancho Luna, Cienfuegos, Cuba; D: protoconcha.
Description: Shell (Figs. 26A-F)
with 3 % rounded whorls, solid,
smooth, rounded aperture, umbilicus
partially occluded. Protoconch (Fig.
26G) of barely one whorl and about
230 um in diameter, with a smooth
surface and a strong varix at its end.
Teleoconch of about 2 % whorls. Dor-
sally convex with very numerous,
curved, prosocline growth lines; ven-
trally, very slightly convex, with the
same growth lines. Umbilicus narrow
and deep, partially occluded by the
callus that originates between the
columella and the internal lip, callus
small and semicircular. Aperture
rounded, peristome continuous.
Dimensions: Holotype 3.0 mm in
diameter and 2.0 mm in height. Our
shells reach 2.85 mm in maximum
diameter.
Operculum multispiral with a
central nucleus.
Habitat: Species with wide bathy-
metric distribution, recorded
between 18 and 122 m depth. In
Cuba, it was found in sediments col-
lected between 5 and 56 m, the living
material examined was collected on
coralline sandy bottom between 20
and 56 m. In Cuba, off Rancho Luna
Beach and Yaguanabo, living speci-
mens were collected at 30-36 m on
Halimeda sp.
Distribution: Previously known
from USA: North Carolina (PORTER,
1974), Florida (PILSsBRY € MCGINTY,
1945a), Louisiana (ODÉ, 1987);
Colombia (GARCIA, 2002); Brazil: Rio
de Janeiro (Rios, 1994); Abaco,
Bahamian islands (REDFERN, 2001).
Cuba: Cienfuegos Bay.
Remarks: This is a characteristic
species, with its surface totally
smooth, the aperture rounded, and
the umbilicus partially closed by the
callus; these characters differentiate it
from other congeneric species. Its
callus is similar to that of T.
incertum, but the lack of ornamenta-
tion in the protoconch and teleoconch
differentiate them.
51
Iberus, 29 (2), 2011
Figures 26A-G. Teinostoma cocolitoris Pilsbry 82 McGinty, 1945. A-F: shells, between 2.0 and 2.6
mm, Cienfuegos Bay, Cuba; G: protoconch.
Figuras 26A-G. Teinostoma cocolitoris Pilsbry € McGinty 1945. A-F: conchas, entre 2,0 y 2,6 mm,
Bahía de Cienfuegos, Cuba; G: protoconcha.
Teinostoma helicinum spec. nov. (Figures 27A-F)
Type material: Holotype (Fig. 27A) in MNCN (15.05/55064) and 2 paratypes (Fig. 27B y 27D)
(15.05/55065), from type locality. Other paratypes: AMNH (1 s), FLMNH (448613, 1 s) MNHN
(24403, 1 s), IES (2 s), MHNS (100540, 1 s), USNM (1155032, 1 s), CFR (3 s), GHL (1 s) and CFG (6 s).
OZ
RUBIO ET 412.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Other material examined: Cuba: 3 s and 1 sp, Faro de los Colorados, 56 m (MHNS).
Type locality: Rancho Luna Beach, Cienfuegos, Cuba, 40-45 m.
Etymology: The specific name refers to the shape of the peristome, which resembles that of the land
snail, subfamily Helicinae.
Description: Shell (Figs. 27A-D)
strong, solid, somewhat depressed, with
about 4 whorls, whitish, smooth and
shiny. Protoconch (Figs. 27E-F) of about
1 Y smooth whorls and about 280 um in
diameter. It is separated from the teleo-
conch by a strong varix. Teleoconch of
about 2 Y whorls, totally smooth.
Convex dorsally with very numer-
ous, curved, prosocline growth lines;
ventrally, very slightly convex, also with
the same growth lines. Periphery
Figures 27A-E. Teinostoma helicinum spec. nov.; A: holotype, 2.0 mm (MNCN); B: paratype, 1.8
mm, (MNCN); C: paratype, 1.9 mm (MNHN); D: paratype, 1.5 mm (MNCN), Rancho Luna
Beach, Cienfuegos, Cuba; E-F: protoconch.
Figuras 27A-E Teinostoma helicinum spec. nov.; A: holotipo, 2,0 mm (MNCN); B: paratipo, 1,8 mm,
(MNCN); C: paratipo, 1,9 mm (MNAN); D: paratipo, 1,5 mm (MNCN), Playa Rancho Luna, Cien-
fuegos, Cuba; E-F: protoconcha.
39
Iberus, 29 (2), 2011
rounded. A well formed suture can be
seen by transillumination, being covered
by a fine callous coat. Umbilicus entirely
covered by a small callus formed by a
thickening of the columella. Aperture
nearly ovoid without any groove in the
upper inner angle. Peristome sharp,
externally reflected.
Dimensions: Holotype 2.0 mm in
maximum diameter and 0.95 mm of in
height.
Habitat: Collected on sandy bottoms
between 20 and 56 m depth.
Distribution: Only known from Cien-
fuegos, Cuba.
Remarks: Temostoma helicinum spec.
nov. may be distinguished from its con-
geners by the fine and narrow callous
layer which covers the suture, by the
small umbilical callus, and particularly
by the outwardly deflected peristome as
seen in some species of terrestrial shells
of the subfamily Helicinae.
It may be distinguished from T.
ciskae, T. goniogyrus and T. lenticulare
because these have the teleoconch surface
totally covered by punctiform incisions;
from T. clavium and T. nesaeum because
these have the teleoconch covered totally
or partially by spiral cords, and from T.
lerema, T. umbilicatum and T. biscay-
nense because these have the protoconch
totally covered by a fine callous layer.
From T. megacallus it can be distin-
guished by its externally reflected peris-
tome and the smaller umbilical callus,
and from T. megastoma by the sunken
protoconch of the latter.
Teinostoma megastoma (C.B. Adams, 1850) (Figures 28A-C)
Vitrinella megastoma C.B. Adams, 1850. Monog. Vitrin.: 7. [Type locality: Port Royal, Jamaica].
Teinostoma biscaynense auct. non Pilsbry £e McGinty, 1945a.
Type material: Lectotype (Figs. 28A-C) in MCZ (156269) after CLENCH éz TURNER (1950: 306, plate
35, fig. 2). At present itis destroyed. There are 11 paralectotypes (labeled as paratypes), from Jamaica
in MCZ (186187). A neotype is here designated from one of these shells (Figs. 28A-C) of this lot.
Material examined: Bahamas: 1 s, Olympus Reef, 12 mi. NNW West End, Grand Bahama, 36 m,
coralline algae fragments (CHL). USA: Florida: 1 s, Spoil, Apac Pit, Sarasota Co., fossil (CHL); 1 s,
32 mi. E St. Augustine, St. Johns Co. 27 m ft (CHL). Louisiana: 1 s, 71-74 m (CHL).
Description: We repeat the original
description in C.B. ADAMS (1850):
“Much depressed, transversely ovate:
white, translucent: smooth and shining:
apex very obtuse: spire convex, but little
elevated: whorls a little more than three,
moderately convex, with a distinct
suture; last whorl very large, rapid ly
increasing in the last part, well rounded:
aperture scarcely modified by the last
whorl: umbilical region very widely and
deeply indented. Mean divergence
about 130%; length of spire 0.01 inch;
total length .033 inch; greatest bread th
0.06 inch, least bread th 0.045 inch”.
PiLsBRY (1946) mentioned the origi-
nal description and figured the species
for the first time. He complemented the
description: “The shell is transparent,
glassy, quite thin and globose for
Teinostoma, with very large aperture,
54
and very small, sloping umbilical callus,
which is flat or slightly concave, the
base rising around it. The wholly super-
icralisutuse iso nderedasby aa alse
sutural line by transparence; sometimes
this gives the illusion of a deeply
impressed suture. Diameter: 2 mm,
height 1.2 mm”. And he follows: “This
was rather abundant. By the very small
umbilical callus it agrees with
Pseudorotella, as Miss Bush has noted
on the label. The “paratype” figured is
the largest in the lot. Adams's measure-
ments were apparently from a smaller
one. Except in size, the dozen specimens
are all very much alike”.
Shell (Figs. 28A-C) solid, smooth,
whitish and shiny; spire of a little more
than 3 rapidly-expanding whorls. Teleo-
conch with about 2 whorls, smooth
except for fine growth lines. Periphery
RUBIO ET 42.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
(MCZ 156269).
Figures 28A-C. Teinostoma megastoma (C.B. Adams, 1850). A-C: neotype, 1.5 mm, Jamaica
Figuras 28A-C. Teinostoma megastoma (C.B. Adams, 1850). A-C: neotipo, 1,5 mm, Jamaica (MCZ
156269).
rounded. Suture seen by transillumina-
tion to be covered by a fine coat of shell
material which also covers the proto-
conch and the first teleoconch whorl.
Each whorl covers much of the previous
one. Callus completely covers the
umbilicus. Aperture oval, not modified.
Base concave, umbilicus totally covered
by a fine callus.
Maximum reported size: 2.5 mm
Habitat: Species with wide bathy-
metric distribution, recorded between 0
and 123 m depth. Collected alive
between 0 and 42 m. It lives in man-
groves, sand, muddy, and rocky bottom.
Shallow soft bottom (Díaz MERLANO é
PUYANA HEGEDUS, 1994). In Cuba, most
of the samples were collected between 4
and 10 m.
Distribution: Recorded from Port
Royal, Jamaica (C.B. ADams, 1850;
CLENCH éx TURNER, 1950); from Colón
and Bocas Island, Panama (OLssoN éz
MCGINTY, 1958); from St. Croix, Virgin
Islands (NOWELL-UsSTICKE, 1959); from
USA: Louisiana, Texas; Mexico:
Campeche State, Yucatan State, Quin-
tana Roo (MOORE, 1964; ODÉ, 1987);
from NE Florida (Lgr, 2009); from North
Carolina and south of the Caribbean
Sea, and Portete, Costa Rica (HOUBRICK,
1968); from Campeche to Ciudad del
Ss
Iberus, 29 (2), 2011
Carmen and Zacatal, from Ninum Point
to Campeche, from El Cuyo to Ninum
Point, from Yalkupul Point to Cerritos
Islands and from Isla Mujeres to Holbox
Island, Mexico (VOKES éz VOKES, 1984);
from North Carolina to the western
Caribbean (ABBOT, 1974); from Cuba
(ESPINOSA ET AL., 1985); from Portete
and Moín, Costa Rica (ROBINSON éz
MONTOYA 1987); from Curacao, Aruba
and Bonaire (DE JONG é COOMANS,
1988); from North Carolina to Panama
and Colombia (Díaz MERLANO €
PUYANA HEGEDUS, 1994); from Brazil:
Rio de Janeiro (RIOS, 1994). Martinique,
in our material.
Remarks: The tube with the label of
the lectotype in MCZ (156269) had only
a few fragments; so, from the lot of the
paralectotypes (MCZ 186187) we have
selected one shell which is here desig-
nated the neotype.
PiLsBRY (1946) accepted the descrip-
tions and figured the species of Vit-
rinella described from Jamaica by C.B.
Adams, but he placed this species in the
genus Teinostoma, subgenus
Pseudorotella, agreeing with the
opinion of Katherine J. Bush noted in
the label of lectotype, MCZ 156269. The
globose aspect, the rounded aperture,
the umbilical callus reduced to a fine
slightly convex callous coat, and the
protoconch placed below the following
whorl separate it from its congeners.
LEE (2009, fig. 325) figured a shell
dredged at 27 m, 32 miles East of St.
Augustine, Florida, but in our opinion
this is not T. megastoma but a member
of the Cornirostridae, genus Tomura. In
the web page www.jaxshells.org, as well
as in “Marine Shells of Northeast
Elorida* as: in “¿Selected Images ot
Western Atlantic Gastropods” there is a
SEM micrograph under the name of
Teinostoma megastoma which, in our
opinion, is T. umbilicatum (=T. cryp-
tospira). The two species are similar
because they have the spire partially
covered by a fine callous coating. The
differences between them are that in T.
umbilicatum the callous cap completely
covers the shell, including the proto-
conch; the spire is flat, the umbilical
callus is stronger and the aperture is
almost circular. In T. megastoma the
spire is more elevated, the umbilical
callus is finer, and the aperture ovoid.
Teinostoma cienfuegosense spec. nov. (Figures 29A-D)
Type material: Holotype (Fig. 22A) in MNCN (15.05 /55061) and 2 paratypes (Figs. 29B-C)in MNCN
(15.05 /55062). Other paratypes: MHNS (100547, 10 s), AMNH (2 s), NHMUK (2 s), MNHN (24393,
2 s), (IES, 2 s), (CER, 3 s) and (CFG, 6 s).
Other material examined: Cuba: 11 s, Cienfuegos Bay, 10 m (MHNS); 4 j, Cienfuegos Bay, 20-30 m
(MHNS). Martinique: 1 c, Pointe Borgnesse, 12 m, sandy-muddy bottom, close the reef (CJP).
Type locality: Cienfuegos Bay, sta. 12a, 22%07'N 80%26'W, 4 m.
Etymology: The specific name refers to the type locality, an area extensively sampled by the second
author.
Description: Shell (Figs. 29A-C) a
little depressed, rounded, trochiform,
solid, smooth, whitish and shiny; spire
formed by 4 rapidly-increasing whorls.
Protoconch (Fig. 29D) bulbous, of
about 1 % whorls, and of two clearly
differentiated stages, the first one
smooth and the second with small dis-
persed granules; it measures about 280
um and it is placed below the next
whorl. Teleoconch with about 2 Y
whorls, totally smooth except for fine
3Ó
growth lines. Periphery rounded.
Suture barely distinguishable, seen by
transillumination to be covered by a
fine coat of shell material. Each whorl
covers much of the previous one.
Callus covers the umbilicus completely.
Dimensions: Holotype is 1.43 mm
of maximum diameter.
Maximum reported size: 2.5 mm
Habitat: ln Cuba most of the
samples were collected between 4 and
10 m in coralline sand bottom.
RUBIO £7 41.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 29A-D. Teinostoma cienfuegosense spec. nov. A: holotype, 1.43 mm (MNCN); B-C: paraty-
pes, 1.2, 1.3 mm, Cienfuegos Bay, Cuba (MNCN); D: protoconch.
Figuras 29A-D. Teinostoma cienfuegosense spec. nov. A: holotipo, 1,43 mm (MNCN); B-C: parati-
pos, 1,2, 1,3 mm, Babía de Cienfuegos, Cuba (MNCN); D: protoconcha.
Distribution: Only known from
Cienfuegos Bay, Cuba.
Remarks: Early in the course of
this work this species was con-
fused with T. megastoma on the
basis of the figure of the holotype
provided. by. PILSBRY (1946).
Teinostoma cienfuegosense spec.
nov bears little similarity to” 1.
megastoma, from which it can be
distinguished by its uncalloused
protoconch and the rounded,
almost circular aperture.
The globose aspect, the
rounded aperture, the umbilical
callus reduced to a fine callous
slightly convex coat, and the pro-
toconch placed below the follow-
ing whorl separate it from its con-
geners.
Teinostoma parvicallum Pilsbry ££ McGinty, 1945 (Figures 30A-H)
Teinostoma (Idioraphe) parvicallum Pilsbry £ McGinty, 1945a. The Nautilus, 59: 4-5, pl. 2, fig. 2.
[Type locality: Missouri Key, Florida].
Type material: Holotype in ANSP (181105). Not examined.
Material examined: Cuba: 34 s, Cienfuegos Bay, 22%07'N 80%27'W, 9 m (MHNS); 42 s, Cienfuegos
Bay, 10 m (MHNS); 9 s, Rancho Luna Beach, 20 m (MHNS); 5 s, Rancho Luna Beach, 15-54 m
(MHNS). Trinidad and Tobago: Tobago: 1 s, Horse Shoe Reef, 15 m, coralline sandy grit near the
reef (CJP).
37
Iberus, 29 (2), 2011
Figures 30A-H. Teinostoma parvicallum Pilsbry 8% McGinty, 1945. A-E; shells, between 1.0 and
1.5 mm, Cienfuegos Bay Cuba; F-G: protoconch; H: radula.
Figuras 30A-H. Teinostoma parvicallum Pilsbry + McGinty, 1945. A-E; conchas, entre 1,0 y 1,5
mm, Bahía de Cienfuegos, Cuba; F-G: protoconcha; H: rádula.
Description: In PiLSBRY € MCGINTY
(1945a: 4-5) and MOORE (1964: 85-87).
Shell (Figs. 30A-E) trochiform, with
spire relatively high, umbilical callus
medium in size, totally covering the
58
umbilicus in adult individuals. Proto-
conch (Figs. 30F-G) of about 1 % smooth
whorls, and about 270 um in diameter.
Teleoconch of about 2 Y whorls, totally
smooth except for small growth lines.
RUBIO ET 42.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Periphery and base rounded. Between
the columella and the umbilical callus
there is a fine groove. Umbilicus gen-
erally closed totally by the callus,
except in young individuals, in which
a small fissure may persist. Aperture
slightly oblique, with a sharp border
on the external lip and a continuous
peristome.
Dimensions: Holotype 2.0 mm in
diameter by 1.5 mm in height. Our
shells reach 1.5 mm in diameter and
1.09 mm in height, and being smaller
keep the same ratio (D/H: 0.75).
Animal of holotype figured by
PILSBRY €£ MCGINTY (1945a).
Radula (Fig. 30H) taenioglossate,
with formula 2+1+R+1+2. Central
tooth wide basally, the ventral margin
well developed, without denticles.
Cutting surface formed by a central
large, sharp cusp and 5 denticles of
medium size on each side. Lateral
teeth similar to the central, their bases
are quadrangular and also without
denticles; free margin with a central
cusp and 4-5 smaller denticles on each
side, more elongated than central
tooth. Marginal teeth long, narrow,
and hook-shaped; the medial aspect
with 24-26 weak denticles on the
upper outer margin; the outer mar-
ginal teeth are inclined outwards in
their distal third and possess 15-16
denticles on the upper end of their
medial aspects.
Habitat: This species lives under
stones between 10 and 50 m in depth.
Some authors recorded it in deeper
water (up to 90 m) based only on
empty shells. Considered a continen-
tal species by MOORE (1964) it is
widely distributed among the islands
of the Caribbean.
Distribution: It has been recorded
from the USA: Missouri Key, Florida
(PILSBRY é MCGINTY, 1945a); from
Puerto Rico (WARMKE € ABBOTT,
1961); from Florida Keys, Texas to
Mexico (MOORE, 1964); from Texas
(ANDREWS, 1977) “from. Cuba
(ESPINOSA: SER LALO 1985) from
Venezuela, Sucre and Isla Margarita
(Princz, 1986); from Florida to Texas
(Lyons, 1989); from Colombia (DíAz
MERLANO é PUYANA HEGEDUS, 1994);
from Abaco, Bahamas (REDFERN,
2001). From Tobago, in the present
work.
Remarks: T. parvicallum is very
similar in general aspect with the
shell of T. incertum, from which it can
be distinguished by the obliteration of
the umbilicus by callus even in juve-
nile shells and in lack of ornamenta-
tion on the teleoconch.
Teinostoma megacallum spec. nov. (Figures 31A-E)
Type material: Holotype (Fig. 31A)in MNCN (15.05 /55067), and 2 paratypes (Figs. 31B-C) in MNCN
(15.05/55068), from type locality. Other paratypes from Cienfuegos Bay, sta. 12a, 22007'N 80"26'W,
4 m: MHNS (100548, 1 s, Fig. 31D), MNHN (24394, 1 s), FLMNH (448614, 1 s), AMNH (1 s), CFG
(Lis) CER(2S):
Other material examined: Cuba: 2 s, Cienfuegos Bay, sta. 12, 22%07'N 8027'W, 9 my 10 s, Cienfue-
gos Bay, sta. 12a, 22%07'N 8026'W, 4 m; 1 s, Cienfuegos Bay, 20-30 m; 2 s, Rancho Luna Beach, 15-
30 m.
Type locality: Cuba, Bahía de Sagua, northeast Cuba, 3-6 m.
Etymology: The specific name refers to the large callus, which characterizes the species.
Description: Shell (Figs. 31A-D) tro-
choid, pyriform, very solid, almost as
wide as high, smooth, umbilical callus
very large. Protoconch (Fig. 31E) of
about 1 Y smooth whorls, and about
230 um in diameter. Teleoconch of
about 2 whorls, no ornamentation, with
visible suture and rapid expansion.
Dorsally convex with very numerous,
curved, prosocline growth lines; ven-
trally, very slightly convex, also with
the same growth lines, which are more
evident on the dorsum and periphery.
Umbilicus totally hidden by a strong
9%
Iberus, 29 (2), 2011
Figures 31A-E. Teinostoma megacallum spec. nov. A: holotype, 1.65 mm, Sagua, Cuba (MNCN);
B: paratype, 1.5 mm, Sagua, Cuba, (MNCN); C: paratype, 1.6 mm, Cienfuegos, Cuba (MNCN);
D: paratype 1.8 mm (MANS); E: protoconch.
Figuras 3LA-E. Teinostoma megacallum spec. nov. A: holotipo, 1,65 mm, Sagua, Cuba (MNCN); B:
paratipo, 1,5 mm, Sagua, Cuba (MNCN); C: paratipo, 1,6 mm; Bahía de Cienfuegos, Cuba
(MNCN); D: paratipo 1,8 mm (MHNS); E: protoconcha.
callus formed by the thickening of
the columella and the internal lip.
Aperture nearly quadrangular with
an expansion of the peripheral
labrum, columella wide and almost
straight, outer lip sharp, the upper
part advanced.
Dimensions: Holotype 1.65 mm in
maximum diameter and 1.12 mm of
height.
60
Habitat: In Cuba this species has
been collected in sandy grit between
3 and 30 m deep.
Distribution: Only know from
Cienfuegos, Cuba.
Remarks: Teinostoma megacallum
may be distinguished from its con-
geners by the robust shell and princi-
pally by the thick columella and the
great size of the umbilical callus.
RUBIO ET 4Lz.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Teinostoma carinicallus (Pilsbry € McGinty, 1946) (Figures 32A-D)
Teinostoma lituspalmarum auct. non Pilsbry £: McGinty, 1945.
Teimostoma (Annulicallus) carinicallus Pilsbry € McGinty, 1946a. The Nautilus, 60: 17-18, pl. 2,
figs. 6-6b. [Type locality: Missouri Key, Florida].
Pseudorotella carinicallus Pilsbry € McGinty, 1946.
Pseudorotella carinicallum (sic).
Type material: Holotype in ANSP (181979). Not examined.
Other material examined: Florida, USA: 1 s east side, Peanut Island, under rocks (CMK); 1 s, Anclote
Key, Pasco Co. (CHL); 1 s, Pelican Shoals, Key West, Monroe Co., 5-7 m, (CHL).
Description: The best description is
in MOORE (1964: 101-102) “Shell
depressed, shoulder concave, bearing a
low spiral rib at its outer edge; umbili-
cus surrounded by a strong spiral
carina. Spire flattened, formed by four
whorls, two in the protoconch and two
in the teleoconch. Periphery rounded;
umbilical area is bordered with a
strong spiral carina. Aperture oblique,
parietal callus rather thin. There is a
small groove at the upper inner angle”.
We add: A short channel is formed
at the junction of the umbilical keel
with the columella. The protoconch
(Fig. 32D) is barely detectable due to a
fine callous layer which covers the
shell dorsally. In the studied material
the dorsal cord is prominent and pro-
duces a distinct angulation on the
shell.
Maximum reported size: 2.7 mm.
Our shell (Figs. 32A-C) measures 2.15
Aun. in. diameter and 1.25 mm in
height.
Habitat: Depth between 0 to 46
m. The type specimen was taken
alive in shallow water. However the
species appears to be rare in
shallow inshore waters (MOORE,
1964).
Distribution: USA: Florida: East
Florida, West Florida, Florida Keys
(PILSBRY €: MCGINTY, 1946b); Texas
(ODÉ, 1987b); Panama (OLssoN éz
MCGINTY, 1958).
Remarks: This species was col-
lected from the Plio-Pleistocene of
St. Petersburg. PILSBRY (1953) stated:
amone the Pliocene. specimens
there are many in which the spiral
angle of the upper surface is wholly
absent”. Our shell presents the
typical characters of the species.
T. carinicallus is very similar to
> liituspalmarum. —_Pilsbry <
McGinty. The main difference
between the two species is that T.
carinicallus is smooth and 7. litus-
palmarum has weak spiral striae.
Teinostoma lituspalmarum Pilsbry £: McGinty, 1945
Teinostoma (Annulicallus) lituspalmarum Pilsbry 8: McGinty, 1945a. The Nautilus 59: 7-8, pl. 2,
fig. 3. [Type locality: Off Palm Beach, Florida].
Type material: Holotype deposited in ANSP (181103). Not examined.
Desenption: "See PIESBRY «
MCGINTY (1945a).
Maximum reported size: 1.7 mm.
Habitat: Rocky reef, in 90 m
deep (50 fms).
Distribution: USA: Florida: East
Florida (PiLsBRY é MCGINTY,
1945a).
Remarks: See also T. lituspal-
marum auct. = TT. carinicallus.
Since its original description this
species has not been recorded.
MOORE (1964: 102-103) mentions:
“Teinostoma carinicallus is very
similar to T. lituspalmarum Pilsbry
and McGinty. The main difference
61
Iberus, 29 (2), 2011
Figures 32A-D. Teinostoma carinicallus Pilsbry 82 McGinty, 1946. A-C: shell, 2,15 mm, Peanut
Island, Florida (CMK); D: protoconch.
Figuras 32A-D. Teinostoma carinicallus Pilsbry Y McGinty, 1946. A-C: concha, 2,15 mm, lsla
Peanut, Florida (CMK); D: protoconcha.
betweentthe tos peciesms nat two are mierely ormsiojbessjamie
carinicallus is smooth and T. litus- species, but it is best to keep them
palmarum has weak spiral striae. separate until the problem can be
More material may show that the solvedis
62
RUBIO ET 4£.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Subfamily TORNINAE Sacco, 1896
Genus Tornus Turton € Kingston, 1830
Tornus Turton € Kingston, 1830. Testacea Britanica, pp. 438, pl. 7, fig. 9. [Type species: Helix
subcarinata Montagu, 1803, by monotypy. Recent. Europe].
Adeorbis S. Wood, 1842. Ann. Mag. Nat. History, 9:530. [Type species: Adeorbis subcarinatus
(Montagu, 1803)).
Diagnosis: Shell of small size (2-3
mm), solid, usually depressed, spire
with 3-4 whorls. Protoconch smooth,
between 1 and 2 whorls (most fre-
quently 1 %), not elevated. Teleoconch
with strong spiral cords crossed by
strong axial ribs. External lip crenulated.
Aperture subtrigonal. Operculum
ovoid, paucispiral and chitinous.
Habitat: Acording to FRETTER €
GRAHAM (1978) and GorFas, PINTO
AFONSO € BRANDAÓ (1985), the true
Tornus live deeply buried in sand under
stones, but they need clean sand
through which the water circulates and
allows good oxygenation. In The Straits
of Gibraltar, Spain it lives with other
species in areas with strong current and
heavy waves partially buried in a sandy
bottom among boulders and stones.
Remarks: Numerous species of
Tornus have been described from Euro-
pean coasts as well as West Africa.
ROLÁN € RUBIO (2002) revised the
family Tornidae in the East Atlantic,
studying 39 species of which 13 are in
the genus Tornus. But on the other side
of the Atlantic, no species had been
described in the genus Tornus from
either coast of the New World.
However, two species previously placed
in the genus Cyclostremiscus are, in our
opinion, members of this genus. The
morphology of their shells, very similar
to some of the West African coast, is of
interest.
Tornus caraboboensis (Weisbord, 1962) (Figures 33A-C)
Cyclostremiscus caraboboensis Weisbord, 1962. Bulletins of American Paleontology, 42(193):
140-141, pl. 13, figs. 7-9. [Type locality: La Salina, west of Puerto Cabello, state of Carabobo,
Venezuela]. Fossil record.
Type material: Type material deposited in PRI (26094). Not examined.
Other material examined: Guatemala: 2 s, Livingston, 2 m (MHNS).
Description: (See WEISBORD, 1962
and ALTENA, 1975). Shell (Figs. 33A-
B) with a reticulated surface, pro-
duced by the spiral cords crossing
the axial ribs. Protoconch (Fig. 33C)
of about 1 % smooth whorls, about
260 um in diameter. Teleoconch
sculpture formed by strong keel-like
spiral cords placed one on the
dorsum, two at the periphery,
another one on the base, and finally
the last one delimiting the umbilicus.
Fine spiral threads are distributed
between the keels. Spiral cords and
threads are crossed by narrow
strongly prosocline axial ribs. Aper-
ture rounded, outer lip with five
prominences caused by the ends of
the spiral keels. Columella strong,
slightly curved.
Dimensions: Holotype 2.3 mm in
maximum diameter, but largest shells
can reach 3.0 mm. Our material mea-
sures 1.23 mm in diameter and 0.82
mm in height.
Habitat: In shallow water. The
samples studied were collected in
muddy sand bottom at 2 m in depth.
Distribution: Species considered
of continental distribution. Recorded
from Venezuela (WEISBORD, 1962);
Colombia (CoseL, 1986; DíAz
Ó3
Iberus, 29 (2), 2011
Figures 33A-B. Tornus caraboboensis (Weisbord, 1962). A-B: shells, 1.1, 1.0 mm, Livingston,
Guatemala (MHNS); C: protoconch.
Figuras 33A-B. 'Tornus caraboboensis (Weisbord, 1962). A-B: conchas, 1,1, 1,0 mm, Livingston,
Guatemala (MANS); C: protoconcha.
MERLANO € PUYANA HEGEDUS, 1994);
Surinam (ALTENA, 1975); Curacao:
Schottegat and Spaanse Waters (DE
JONG é COOMANS, 1988); Brazil:
Espirito Santo (RIOS, 1994);
Guatemala (the present work). The
only insular record is that of DE JONG
$ COOMANS (1988) for Curacao, very
close to the continent, not entirely
inconsistent with the “continental”
distribution paradigm.
Remarks: This species was
described as fossil in the Pliocene of
Carabobo, Venezuela. The samples
recorded from Surinam are also fossil
but derived from the Holocene
deposites. The material here studied
Ss recent rom yin stone;
Guatemala. By their development
stage they seem to be juvenile shells.
The morphology of the sculpture
(strong cords and fine spiral cordlets
crossing with axial ribs forming a
characteristic reticule) recall some
West African species of Tornidae, T.
subcarinatus (Montagu, 1803); T.
africanus Adam é€ Knudsen, 1969; T.
aemilii Rolán €£ Rubio, 2002; T. erici
Rolán € Rubio, 2002; and particularly
T. umbilicorda Rolán € Rubio, 2002,
a species with which it has consider-
able similarity. For this reason we
have placed Cyclostremiscus
caraboboensis in the genus Tornus.
Tornus schrammii (P. Fischer, 1857) (Figures 34A-E)
Cyclostrema schrammii P. Fischer, 1857. Journal de Conchyliologie, 6: 287-288, pl. 10, fig. 11
[Type locality: Guadeloupe].
Cyclostremiscus schrammii (P. Fischer, 1857)
Type material: Type material deposited in MNHN. Lost according to HOUBRICK (1967).
Other material examined: Guatemala: 1 s, Livingstone, 2 m (MHNS). Trinidad and Tobago: Tobago,
4 s, Buccoo (CHL).
64
RUBIO £7 4L.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 34A-E. Tornus schrammii (P. Fischer, 1857). A-B: shell, 1.5, 1.55 mm, Tobago (CHL); €:
shell, 1.15 mm, Livingstone, Guatemala (MHNS); D: protoconch, Tobago; E: microsculpture.
Figuras 34A-E. Tornus schrammii (2 Fischer, 1857). A-B: concha, 1.5, 1,55 mm, Tobago (CHL); C:
concha, 1,15 mm, Livingstone, Guatemala (MHNS); D: protoconcha, Tobago; E: microescultura.
Description: Shell: see P. FISCHER
(1857). Shell (Fig. 34A-C) very solid,
depressed and whitish in color. Pro-
toconch (Fig. 34D) with 1 Y whorls,
about 230 um in diameter, with
strong tubercles irregularly placed,
which are smaller and more numer-
ous near the varix which appears at
the transition to the teleoconch.
Teleoconch sculptured by 4 strong
65
Iberus, 29 (2), 2011
nodular spiral cords (one on the
dorsum, two on the periphery, and
one more on the base. There are 20-
22 strong axial ribs. At the crossing
points there are nodules. Subsutural
area ornamented by fine spiral
striae. The nodules of the subsutural
cord are more elevated than that of
the upper peripheral cord. Aperture
rounded, prosocline. Umbilicus
wide and deep which allows the
previous whorls to be seen.
Dimensions: The holotype is 2.0
mm in diameter. Largest shell, a
paratype in MNHN, is 3.2 mm in
diameter. Our shells did not exceed
Somo:
Habitat: Recorded from the
external reefs (VOKES é€ VOKES,
1984) and shallow water (ROBINSON,
991
Distribution: le has been
recorded. tom. Guadeloupe (E
FISCHER, 1857); from Colón and
Bocas Island, Panama (OLSSsON é
MCGINTY, 1958); from Costa Rica
(Houbrick, 1967); from Guadeloupe
and Central America (HOUBRICK,
1968); from Cancún to the Belize
border, Arcas Keys, Alacran reef and
Cayos del Norte and Lobos from the
Banco Chinchorro, Mexico (VOKES éz
VOKES, 1984; ROBINSON, 1991); from
the Caribbean Sea (ABBOTT, 1974);
and from Colombia (Díaz MERLANO
éz PUYANA HEGEDUS, 1994).
Remiarias LES nO ta emy
common species, few shells are
known even from the type locality.
Since the description by P. FISCHER
(1857), no new records had been
published until HouBrick (1967),
who figured one of seven shells
found in Portete, Provincia Limón,
Costa Rica. Houbrick considered
this — specimen of. particular
impostance since he reported that
the holotype in the MNHN was lost.
Tornus schrammii is very similar
in shell morphology to some species
from the west coast of Africa such as
E EVO ODE, Te ENS AO Oe, 1
ryalli, and T. rachelae. These all
share a depressed shell sculptured
with strong nodulous cords or
tubular extensions.
Subfamily VITRINELLINAE Bush, 1897
Marine prosobranchs that have
small or minute depressed shells,
which are transparent while the
animal is alive. The aperture is
usually oblique, rounded, and
without a terminal varix. There are
usually one to three postlarval
whorls which may be smooth or
sculptured. The operculum is circu-
lar and multispiral, and the radula
taenioglossate.
The animal has small black
eyes, a pair of cephalic tentacles,
and a pair of pallial tentacles. Both
pairs are provided with mobile
cilia for producing respiratory cur-
rents and are tipped with long stiff
inmobile: ¡cilía, he. male 4s
equipped with a penis located
behind the head and which extends
baci anto the mantle ica vity
(MOORE, 1964).
66
In the Recent fauna, there are
ten genera grouped within the
subfamily Vitrinellinae: Anticli-
max Pilsbry € McGinty, 1946;
Aorotrema Schwengel € McGinty,
1942; Cyclostremiscus Pilsbry éz
Olsson, 1945; Cochliolepis Stimp-
son, 1858; Episcynia Mórch, 1875;
Parviturboides Pilsbry € McGinty,
1950; Pleuromalaxis Pilsbry €
McGinty, 1945; Solariorbis
Conrad. "lsOo:. WMitrimeltlaS A
Adams, 1850 and - Vitrinorbis
Pilsbry é€ Olsson, 1952, and all
them are present in the geo-
eraphie. area studied. Acnew
genus, Neusas Warén € Bouchet,
2001, has been placed provision-
ally in Vitrinellinae, although the
authors considered it in an uncer-
tain systematic position, probably
not in the Tornidae
RUBIO E7 42Z.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Genus Anticlimax Pilsbry £ McGinty, 1946
Climacia Dall, 1903: 1633 (Preoccupied, M'Lachlan, 1869 (Neuroptera)).
Climacina Aguayo € Borro, 1946: 11. (Preoccupied by Gemellaro, 1878 (Mollusca)).
Anticlimax Pilsbry € McGinty, 1946. The Nautilus, 60: 12.
Type species: Teinostoma (Climacia) calliglyp tum Dall, 1903 (by monotypy).
Remarks: PILSBRY € OLSSON (1950)
revised the genus and gave the follow-
ing description: “The shell is wider than
high, with a dome-shaped or low-conic
spire of few (3 or 4) whorls, carinate
periphery and more or less convex base.
The protoconch is smooth, of scarcely
more than one convex whorl to 1 1.
Sculpture of close, usually punctate,
spiral striation and radial wavelike ribs
on the base, sometimes on the upper
surface also. The aperture is oblique,
quadrangular or triangular, with a
thickened peristome, the outer lip is
angular or often extended at the termi-
nation of the keel. Umbilicus bordered
by a spirally emerging callous rib, termi-
nating at the columella or in the genus
Subclimax it fills the umbilicus”.
PILSBRY € OLSSON (1950) divided
Anticlimax into two subgenera:
Subgenus Anticlimax s. str.: charac-
terized by having the umbilicus open,
bordered by a spiral cord which termi-
nates in the columella in a small trian-
gular callus. Type species: Anticlimax
calliglyp ta (Dall).
Subgenus Subclimax: characterized
by having an umbilicus, totally or par-
tially closed by a solid column which
terminates in a callus fused to the col-
umella. Type species: A. hispanioliensis
Pilsbry € Olsson, 1950.
Nothing is known about the animal
of Anticlimax. Its generic assignment
has been based only on the distinguish-
ing characters of the shell, as the form,
the radial folds on the base, the angular
form of the external lip, and the spiral
grooves in zigzag, among others.
Most of the known species are fossil
from the Miocene and Plio-Pleistocene.
There are few recent species described,
and they occur in North Carolina,
Florida and Belize.
AGUAYO éz BORRO (1946) described
Canimarina and placed it provisionally
as a subgenus of Cyclostremiscus, to
accommodate the new species
Cyclostremiscus (Canimarina) crassi-
labris.
This species, in their opinion, had
characters which could ally it to the
genera Cyclostremiscus, Miralabrum,
Teinostoma and Climacia, but also it
could be considered as a new genus due
to its own different unique characters.
Almost at the same time, PILSBRY éz
MCGINTY (1946a) introduced the
replacement name Anticlimax, for the
monotypic genus containing Teinostoma
(Climacia) calliglyp tum Dall, 1903, since
the genera Climacia Dall, 1903 and Cli-
macina Aguayo € Borro, 1946, based on
the same type species, were unavailable
homonyms (see above).
FABER (2007) considers Canimarina a
valid genus, comparing it only with
Cyclostremiscus, and places it in Vit-
rinellidae solely on the basis of its
lacking “a clear apertural varix”. Also
he considers Solariorbis decipiens
Olsson € McGinty, 1958 a junior
synonym of Cyclostremiscus (Canima-
rina) crassilabris. Since then databases
treat Canimarina as a valid genus and
place it in Vitrinellinae. In our opinion,
Canimarina must be considered a
synonym of Anticlimax for the follow-
ing reasons:
-FABER (2007) considered it a valid
genus without comparison to the genus
Anticlimax.
-the description of the subgenus is
not sufficiently detailed to allow distine-
tion from other species placed in Anti-
climax.
-Cyclostremiscus (Canimarina) cras-
silabris shares all the generic characters
of Anticlimax.
-The stated date of publication for
Anticlimax is July and that of Canima-
rina is August of the same year, giving
the former priority.
67
Iberus, 29 (2), 2011
Anticlimax crassilabris (Aguayo « Borro, 1946) (Figures 35A-G)
Cyclostremiscus (Canimarina) crassilabris Aguayo € Borro, 1946. Revista de la Sociedad Malaco-
lógica “Carlos de la Torre,” 4(2): 46-47, lám. 3, figs. 1-3. [Type locality: Barranco E. del rio
Canímar. Formación “Yumurí,” Upper Miocene. Matanzas, Cubal.
Solariorbis decipiens Olsson €: McGinty, 1958. Bulletins of American Paleontology, 39: 28-29, pl.
3, figs. 5, 5a, 5b. [Type locality: Bocas Island, Panama].
Type material: Type of Cyclostremiscus (Canimarina) crassilabris deposited in Museo Poey, Uni-
versity of Havana. Type of Solariorbis decipiens in ANSP (211914). Not examined.
Other material examined: Cuba: 1 s, Carenas Key, Cienfuegos Bay, 3 m, under stones (MHNS); 1
s, in the channel to Cienfuegos Bay, 30 m (MHNS); 3 c, Rancho Luna Beach, 20 m (MHNS); 7 s Cien-
fuegos (MHNS). Martinique: 1 c, Pointe Borgnesse, 12 m, from coralline sandy grit near the reef
(EJ)!
Description: The description of the
species in AGUAYO € BORRO (1946) is as
follows: “Concha diminuta, deprimida;
espira cónica, algo elevada sobre el
plano de la ultima vuelta. Provista de 2
lh vueltas, la primera lisa, las siguientes
esculpidas radial y espiralmente. Escul-
tura axil o radial formada por costillitas
salientes (unas 30 en la última vuelta)
que desaparecen al 1/8 final de la
última vuelta. Estas costilla persisten,
aunque menos marcadas en el cuerpo
de la última vuelta; pero desaparecen
en la base al llegar a la quilla espiral
inferior. Base lisa. Escultura espiral
formada por dos quillas salientes que
delimitan el contorno de la última
vuelta, quedando articuladas por las
costillas axiles. Además hay líneas finas
espirales entre ambas quillas, y algunas
evanescentes en la base. Cuerpo de la
última vuelta de contorno cuadrangu-
lar visto de perfil. Ombligo estrecho,
parcialmente cubierto por un callo. Al
final de la última vuelta la quilla supe-
rior se proyecta tangencialmente hacia
la abertura, formando un engrosa-
miento muy marcado en ángulo recto.
Abertura subtriangular, engrosada por
una callosidad formada por la citada
prolongación de la quilla superior.
Borde parietal de la abertura con un
callo peculiar en su ángulo superior”.
The protoconch (Figs. 35F-G) is
about 230 um in diameter, and it is
totally smooth. The teleoconch is
totally covered by fine spiral cordlets.
On the dorsum, strong radial ribs may
be observed. They are slightly proso-
68
cline and, on the last 1/3 of the body
whorl, become more fine and numer-
ous and are crossed by the spiral
cordlets to form a reticule. Basally the
shell is very convex and expresses
strong radial undulating ribs. The
external lip is angled in the peripheral
area and is projected forward forming a
characteristic extension. Umbilicus
small, partially occluded by the thick-
ening and extension of the columella.
Dimensions: The holotype of
Cyclostremiscus (Canimarina) crassi-
labris 1s 1.20 mm in maximum diameter
and 0.78 mm in height. The holotype of
Solariorbis decipiens measures 1.25
mm in maximum diameter and 0.50
mm in height.
Animal and radula unknown.
Distribution: Panama: Bocas Island
(OLSSON é MCGINTY, 1958; FABER,
2007); and Portobello (FABER, 2007);
Dominica (FABER, 2007); Cuba: Matan-
zas, fossil (AGUAYO € BORRO, 1946);
Rancho Luna Beach, Cienfuegos Bay
and Martinique, in the present work.
Habitat: In Cuba this is a uncom-
mon species, having been found in sed-
iments collected between 20 and 50 m
in depth.
Remarks: Anticlimax crassilabris
was described as fossil from the Upper
Miocene, umuarí Formation.
AGUAYO é€z BORRO (1946) mention that
the base is lacking sculpture. There are
axial undulating folds, which do not
appear in the original figuration. These
axial folds on the base are observed in
the individual examined from Cuba.
RUBIO ET AL.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 35A-G. Anticlimax crassilabris (Aguayo 8 Borro, 1946). A-E; shells, between 1.2 and 2.0
mm, Rancho Luna Beach, Cuba (MHNS); F-G: protoconch.
Figuras 35A4-G. Anticlimax crassilabris (Aguayo e Borro, 1946). A-E; conchas, entre 1,2 y 2,0 mm,
Playa Rancho Luna, Cuba (MHNS); F-G: protoconcha.
OLSSON € MCGINTY (1958) described
Solariorbis decipiens on the basis of
only one specimen. Which such limited
material it has not been possible to
know the morphological variability of
the shell. Our shells conform to the
description of Solariorbis decipiens as
well as that of C. crassilabris and have
a consistency in the distinguising char-
acters. Principal among these features
are the sculpture of the dorsum formed
by axial ribs with spiral threads in the
intervals and the strongly convex base
with strong undulating radial folds.
External lip angular and apparently not
channeled by the keel. All specimens
are characteristic of the genus Anticli-
max, and for this reason we have
placed the species in this genus and not
in Solariorbis. At the same time the
similarity of Anticlimax crassilabris to
Solariorbis decipiens Olsson €
McGinty impels us to consider the two
synonymous.
69
Iberus, 29 (2), 2011
Anticlimax glabra spec. nov. Rubio, Rolán € Pelorce (Figures 36A-D)
Type material: Holotype (Fig. 36A) and a paratype (Figs. 36B-C) in MNHN (24200).
Type locality: Grenadines, Martinique, Pointe Borgnese, 12 m.
Etymology: The specific name refers to the smooth surface of the shell in opposition to other con-
generic species.
Description: Shell (Figs. 36A-C)
very small, lenticular, spire consists of
3 rounds of rapid growth. Protoconch
(Figs. 36D) slightly projecting, about
ISO diameter tana toralyy
smooth. Teleoconch totally smooth
except for the first quarter whorl in
which there is ornamentation formed
by spiral cords and axial ribs that
intersect to form a characteristic retic-
ulate sculpture. There is a thick subsu-
tural cord that begins at the proto-
conch and ends in the parietal area of
the aperture, forming a thick callus.
Basally the shell is more convex than
dorsally and withouth strong radial
undulating ribs. Aperture oval and
with a small groove at the upper inner
angle; the external lip is angled at the
periphery; columella straight, inner
lip reflected toward the umbilicus. A
thin horny layer covers the entire
umbilical area.
Dimensions: The holotype mea-
sures 1.00 mm and the paratype 1.06
mm.
Animal and radula unknown
Distribution: Known only from the
type locality.
Habitat: Collected in muddy sand
at the base of the reef, at a depth of 12
m.
Remarks: Anticlimax glabra spec.
nov. is very similar to Anticlimax
crassilabris to the point that we
thought that it represented eroded
specimens of that species. But the
characters are constant in both known
specimens, and they are very charac-
teristic of this new species. The proto-
conch shape, the angular, unchan-
neled external lip, the subsutural
cord, and its similarity to A. crassi-
labris militated for its placement in
Anticlimax although it also shares
characteristics with Teinostoma.
Anticlimax glabra spec. nov.
differs from A. crassilabris by its lack
of dorsal and basal ornamentation, by
its rounded periphery and by having
its umbilicus completely covered by a
thin horny layer.
Anticlimax decorata Rolán, Fernández-Garcés éz Rubio, 1997 (Figures 37A-D)
Anticlimax decorata Rolán, Fernándes-Garcés € Rubio, 1997. Iberus, 15(1): 31-34. figs. 1-2 [Type
locality: Rancho Luna Beach, Cienfuegos, Cubal.
Type material: Holotype in MNCN (15.05 /27420) (Figs. 37A-B). Paratypes in the following collec-
tions: AMNH, NHMUK, CFG, IES, MHNS.
Other material examined: Cuba: 1 c, Rancho Luna Beach, 10-20 m.
Description: See ROLÁN, FERNAN-
DEZ-GARCÉS € RUBIO (1997). Shell
(Figs. 37A-B). Protoconch (Fig. 37D);
microsculpture (Fig. 37C).
Dimensions: Holotype 1.4 mm in
maximum diameter.
Animal and radula unknown.
Distribution: Only known from
Cuba.
7O
Habitat: Unknown.
Remarks: The genus Anticlimax,
as has been noted above, is divided
in two subgenera: Anticlimax and
Subclimax. PILSBRY € OLSSON (1950)
mentioned that there is no species
demonstrating intergradation
between these subgenera. Neverthe-
less, A. decorata presents morpho-
RUBIO ET 4£.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 36A-D. Anticlimax glabra spec. nov. Rubio, Rolán 82 Pelorce. A: holotype, 1.0 mm, Mar-
tinique (MNHN); B-C: paratype, 1.06 mm, Pointe Borgnese, Martinique (MNCN); D: proto-
conch.
Figuras 36A-D. Anticlimax glabra spec. nov. Rubio, Rolán e Pelorce. A: holotipo, 1,0 mm, Martini-
que (MNHN); B-C: paratipo, 1,06 mm, Pointe Borgnese, Martinique (MNCN); D: protoconcha.
logical characters which are inter-
mediate. The open umbilicus and
lack of columellar callus would
place it in Anticlimax s. st., but the
absence of axial sculpture on the
base and of any kind of prolonga-
tion of the labrum, suggest Subcli-
max. We prefer to employ only the
full generic assignment in this
report.
71
Iberus, 29 (2), 2011
Figures 37A-D. Anticlimax decorata Rolán, Fernandez-Garcés 8 Rubio, 1997. A-B: holotype, 1.4
mm, Rancho Luna Beach, Cuba (MNCN); C: details of sculpture; D: protoconch.
Figures 37E-H. Anticlimax proboscidea (Aguayo, 1949). E-G: shells, 1.4, 1.4, 1.6 mm, Rancho
Luna Beach, Cuba; H: detail of the microsculpture.
Figuras 37A-D. Anticlimax decorata Rolán, Fernandez-Garcés 9 Rubio, 1997. A-B: holotipo, 1,4
mm, Playa Rancho Luna, Cuba (MNCN); C: detalle de la escultura; D: protoconcha.
Figuras 37E-H. Anticlimax proboscidea (Aguayo, 1949). E-G: conchas, 1,4, 1,4, 1,6 mm, Playa
Rancho Luna, Cuba; H: detalle de la microescultura.
iz
RUBIO ET 4£.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Anticlimax proboscidea (Aguayo, 1949) (Figures 37E-H)
Teinostoma (Anticlimax?) proboscidea Aguayo, 1949. Revista de la Sociedad Malacológica
“Carlos de la Torre,” 6: 93-94, pl. 4, fig. 5. [Type locality: Camarioca, Matanzas, Cuba].
Type material: Holotype in the Museo Poey (n” 12902), Havana, Cuba.
Other material examined: Antigua and Barbuda: Redonda island, 1 c, among rocks, 5-15 m. Cuba:
1 s, Rancho Luna Beach, 10-20 my 1 s, Baracoa, 15 m; 2 s, Cienfuegos Bay, 15 m. ABC Islands: 1 s,
50 mi. off Palm Beach, Aruba, 5 m (CHL).
Description: This is the text in the ori-
ginal description (AGUAYO, 1949):
“Concha diminuta, sólida, blanca, en
forma de domo, base casi plana, periferia
obtusamente angular; ombligo marcado
por una línea microscópica. Provista de 3
MY vueltas de espira, de las cuales las
nucleares (1 Y vueltas) son lisas, y las
restantes, con numerosas líneas espirales
microscópicamente punticuladas (unas
15 en la última vuelta, desde la sutura
hasta la periferia). Base con una escultura
similar de 12 líneas espirales punticula-
das. Región umbilical con un callo que
no obtura por completo el umbilicus,
dejando una pequeña cisura muy estre-
cha. Última vuelta prolongada tangen-
cialmente de una manera semejante a la
del género Miralabrum Pilsbry y Olsson,
1945. Abertura transversalmente ovoidal,
pero casi subcircular, prolongada en un
estrecho canal en el ángulo basal externo.
Un grueso callo une a la abertura con la
región parietal y columelar de la
concha”.
The protoconch has a little more than
one whorl, with a diameter of about 310
um and under high magnification it can
be seen that the surface is slightly rough-
ened.
The teleoconch (Figs. 37E-G) is
totally covered by evenly-spaced spiral
cords, which present small ovoid small
ovoid cells in their interspaces. Aperture
triangular, the external lip is elongated
basolaterally to produce an acute angu-
lation at its lateral margin. Aside from
this feature, the lip lacks an internal
channel. Peristome thickened. The col-
umellar callus is extended towards the
base partially closing the umbilicus.
Dimensions: Holotype is 1.7 mm in
maximum diameter. Our shells measure
1.55 mm in maximum diameter and 0.74
mm in height.
Animal and radula unknown.
Distribution: MOORE (1965) consid-
ered it endemic to Cuba. DE JONG é-
COOMAN (1988) recorded it in Bonaire
and Aruba (5 sps). REDFERN (2001) men-
tions numerosous shells from Abaco,
Bahamas, collected in sediment from 23
m in depth. One shell from Redonda
(Antigua and Barbuda) confirms its
presence for the Lesser Antilles.
Habitat: It is an uncommon species.
We have it from sediments collected
between 10 and 20 m in depth, but the
holotype came from 40 m.
Remarks: AGUAYO (1949: 94) stated
that the general aspect of T. proboscidea
is similar to that of Teinostoma pilsbryi
McGinty, 1945, from which it is distin-
guished by its small size, lack of the
globose callus in the umbilicus, and the
prolongation at the end of the last whorl.
The domed shape and the aforemen-
tioned projection have similarity to some
species of the genus Anticlimax Pilsbry
$ McGinty, 1946.
Teinostoma pilsbryi McGinty, 1945 is
smaller and has a different umbilical
callus.
Climacia tholus Pilsbry and
McGinty, 1946 is smaller and has a dif-
ferent umbilical callus.
Anticlimax pilsbryi (McGinty, 1945) (Figures 38A-C)
Teinostoma pilsbryi McGinty in Pilsbry and McGinty, 1945. The Nautilus, 58: 142-143, pl. 1, fig.
5. [Type locality: One and one half miles off Cape Florida, 70 feet].
73
Iberus, 29 (2), 2011
Climacia tholus Pilsbry ££ McGinty, 1946a. The Nautilus, 59: 79-80, pl. 1-1b, 2-2a. [Type locality:
About four miles off Carysfort Light, Florida].
Type material: Holotype of Teinostoma pilsbryi in ANSP (181080). Holotype of Climacia tholus in
ANSP (181290). Not examined.
Other material examined: Florida, USA: 1 s, Tarpon Springs, Hillsborough County, dredged in 12
m at SW of Anclote Key (CMK).
Description: The shell (Figs. 38A-B)
has a dome shaped spire, peripheral
keel at the base, a heavy callus which
partly or completely fills the umbilicus,
sculpture of many low close-set zigzag
grooves, and low radiating waves on
the base. Protoconch (Fig. 38C) of 1 Y
smooth whorls, size about 240 um,
without any varix at the transition to the
teleoconch. Sculpture formed by fine
spiral zigzag grooves. There are about
20 on the base and 22-23 on the dorsal
aspect of the body whorl. A thick ridge
borders the umbilicus, and a heavy
callus fills it partly or completely. Aper-
ture of triangular shape, a little oblique.
Parietal callus well developed, col-
umella very strong and extended
towards the umbilicus. There is no
sulcus at the convergence with the
peripheral keel.
Holotype of Teinostoma pilsbryi 3.4
mm in diameter and 2.0 mm in height.
The photographed shell measures 1.9
mm in diameter.
Habitat: This is a species of wide
bathymetric distribution having been
collected between 0 and 152 m in depth.
MOORE (1986) considered it a continen-
tal species living in shallow water on
mud bottom.
Distribution: USA: Florida: East
Florida (MCGINTY, 1945; PILSBRY éz
MCGINTY, 1946a), Texas (ANDREWS,
1977); Mexico: Campeche State, Yucatan
State, Ouintana Roo (ODÉ, 1987b);
Venezuela: unlocalized (PriNcz, 1982).
South Florida, Texas and Mexico
(MOORE, 1964; EMERSON € JACOBSON,
1976).
Remarks: MOORE (1964: 167) syn-
onymyzed Teinostoma pilsbryi McGinty,
1945 and Climacia tholus Pilsbry é
McGinty, 1946a, saying that the species
has a considerable variation in size and
extension of the umbilical callus and that
these characters overlapped between the
two taxa to the extent that one could not
distinguish the two. We agree with this
conclusion. The only difference between
A. pilsbry and A. tholus is the size of the
umbilical callus, which in A. pilsbry is
large, reflected outward and occluding
the umbilicus, which is narrow and
deep. A. pilsbryi shows considerable
variation in the size and extent of the
umbilical callus. The lack of radial costu-
lation on the base, observed in the holo-
type of T. pilsbry, was considered a con-
sequence of the immaturity of the speci-
men. Moore placed both species in Anti-
climax.
Anticlimax locklini Pilsbry £ Olsson, 1950 (Figures 39A-D)
Anticlimax locklini Pilsbry € Olsson, 1950. Bull. Amer. Paleont., 33: 114, n* 135, pl. 2, figs. 8, 8a,
9. [Plio-Pleistocene of Shell Creek, Florida].
Type material: Holotype in ANSP (n” 18393). Not examined.
Other material examined: Nicaragua: 1 s, Witties Reef, 20-30 m. (MHNS).
Description: This is the original
description in PILSBRY 6: OLSSON (1950):
“The shell has a low-conic truncate upper
surface, a carinate periphery and rather
flatly convex base. The spire is small, occu-
74
pying about one-third of the diameter of
the shell. There are 3 Y whorls, the first 1 Y
glossy, convex and projecting very slightly,
the next whorl narrower, the penultimate
whorl having several low radiating waves
RUBIO £T AZz.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
ough Co., Florida (CMK); C: protoconch.
Figures 38A-C. Anticlimax pilsbryi (McGinty, 1945). A-B: shell, 1.9 mm, Tarpon Spring, Hillsbor-
Figuras 38A-C. Anticlimax pilsbryi (McGinty 1945). A-B: concha, 1,9 mm, Tarpon Spring, Hills-
borough Co., Florida (CMK); C: protoconcha.
which do not extend upon the last part of
the whorl. The last whorl has nearly
straight lateral slopes, concave above the
peripheral keel and closely marked with
punctuate spiral striae. The base has about
12 somewhat protractively rad iating wave-
like ribs and weak, partly effaced striae.
The aperture 1s triangular. The umbilicus is
filled by a callus, forming a raised, convex
pad in connection with the columellar
callus, a small umbilical notch left next to
the parietal callus”.
Habitat: Our shell (Figs. 39A-C) was
collected on a coralline bottom between 20
and 30 m in depth.
Distribution: Only know as a fossil
species from Plio-Pleistocene of Shell
Creek and St. Petersburg, Florida (PILSBRY
éz OLsson, 1950); off Yucatan, Mexico
(TREECE, 1980) and Witties Reef,
Nicaragua.
Remarks: PILSBRY €: OLSSON (1950)
reported: “This species differs from
related Miocene forms by reduction of
the radial waves of the upper surface
to a few grouped near the middle of
the penultimate whorl. The umbilical
callus pad is quite unlike the complete
one of A. annae, and A. locklini has a
more pronounced peripheral keel than
that species, the whorl being concave
aboventat. As intother species, the
number of radiating ribs varies ind i-
vidually”.
TREECE (1980) considered A. lock-
lini a recent species recorded off
Yucatan. Our shell confirms that A.
locklini is a recent species.
TS)
Iberus, 29 (2), 2011
Figures 39A4-D. Anticlimax locklini Pilsbry 82 Olsson, 1950. A-C: shell, 1.3 mm, Witties Reef,
Nicaragua (MHNS); D: microsculpture.
Figuras 39A-D. Anticlimax locklini Pilsbry e Olsson, 1950. A-C: concha, 1,3 mm, Witties Reef,
Nicaragua (MANS); D: microescultura.
Anticlimax annae Pilsbry € Olsson, 1950 (Figures 40A-D)
Anticlimax annae Pilsbry € Olsson, 1950. Bull. Amer. Paleont., 33: 113. n* 135: 11, pl. 3, figs. 12 a-
b. [Type locality: Plio-Pleistocene of St. Petersburg, Florida —fossil species-].
Type material: Holotype and paratype in ANSP (n” 18397). Not examined.
Other material examined: Mexico: 1 s, Puerto Morelos, 24 m, Yucatan (MHNS).
7Ó
RUBIO ET 4L.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 40A-D. Anticlimax annae Pilsbry 82 Olsson, 1950. A-C: shell, 1.6 mm, Puerto Morelos,
Yucatan (MHNS); D: microsculpture.
Figuras 40A-D. Anticlimax annae Pilsbry € Olsson, 1950. A-C: concha, 1,6 mm, Puerto Morelos,
Yucatán (MHNS); D: microescultura.
Description: This is the original
description (PILSBRY €: OLSsON, 1950):
“The rather strong, solid shell is convex
below, and in the form of a low truncate
cone above the angular periphery. The
spire is very narrow, level or slightly
sunken. There are about three and one-
third whorls the first 1 Y glossy, convex,
the next narrow and depressed at first,
but increasing rapid ly near its end. The
DS
Iberus, 29 (2), 2011
last whorl is very wide, sloping to the
periphery. Sculpture of punctuate
spiral grooves, about twenty on the
upper surface, the base with similar
but weaker grooves. Radiating sculp-
ture of rather strong waves on the
penult whorl and about half of the last
whorl, the base having about 8 to 15
stronger radiating waves which fade
out near the periphery. The aperture is
subtriangular, a little effuse at the
peripheral angle. The thick parietal
callus extends well forward, and with
the rather flattened, semicircular, col-
umellar lobe, completely closes the
umbilicus”.
Holotype is 2.5 mm in diameter
and 1.35 mm in height. Our shell (Figs.
40A-C) is 1.6 mm in diameter.
Habitat: Abundant in the Pliocene
deposits of St. Petersburg. Our mater-
ial was collected in sediments from
coralline bottom.
Distribution: Only known as a
fossil from St. Petersburg and
Orlando, Florida. Our specimen is
clearly of recent origin.
Remiark ss BRASS O SS ON
(1950) stated: “This species differs
from A. hispaniolensis and A. his-
paniolensis cratera by the very
strong parietal callus and the more
flattened callus pad which wholly
closes the umbilicus. It is rather vart-
able in size and especially in the
development of radial waves on the
upper surface. In most specimens
examined, waves are present on the
first half of the last whorl, but occa-
sionally they do not extend beyond
the penultimate whorl, the whole
last whorl lacking of them”.
A. locklini is distinguished by the
more pronounced peripheral keel
and by a small thickened parietal
callus and columella.
Anticlimax hispaniolensis cratera Pilsbry € Olsson, 1950 (Figures 41A-E)
Anticlimax hispaniolensis cratera Pilsbry € Olsson, 1950. Bull. Amer. Paleont., 33: 116, n* 135, pl.
2, fig. 6, pl. 3, figs. 11-11b. [Miocene of Banana River, Costa Rica].
Type material: Holotype in ANSP (n” 18403). Not examined.
Other material examined: Nicaragua: 1 s, Witties, 20-30 m (MHNS).
Description: This is the original
description (PILSBRY éz OLSSON, 1950):
“The shell is similar to A. hispaniolensis
in form, but the spire is somewhat more
sunken. There are 3 1/ 3 whorls, the first
two planorboid, narrow. The last whorl
rises in the narrowly rounded ridge,
crater-like, around the spire, then slopes
stratghtly to the blunty carinate periph-
ery, below which it is rather weakly
convex. Sculpture of strongly impressed
punctuate (or minutely z1g2a8) spiral
lines and radiating waves on the base.
The aperture is triangular, the upper
margin of the peristome nearly straight,
extending above the peripheral keel. The
umbilicus is filled by a callus which
expands into a strongly convex semicir-
cular pad, united with the columellar
callus”.
78
Dimensiones: Our shell (Figs.
41A-C) has 1.0 mm in diameter.
Habitat: Our shell was collected
in coralline bottom at a depth of
20-30 m.
Distribution: Only known as a
fossil species from Miocene of
Banana River, Costa Rica (PILSBRY
£z OLSSON, 1950) and Nicaragua.
Remarks: PILSBRY € OLSSON
(1950) stated: “The close relation-
ship between A. hispaniolensis
cratera and A. hispaniolensis has
been noted under the latter species.
Both are based upon specimens not
jullysmiature- Wero elevo entiabktlve
posterior grooved commissure of
the aperture, conspicuous in these
specimens, would be nearly or
wholly obliterated and the peris-
RUBIO ET 42.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 41A-E. Anticlimax hispaniolensis cratera Pilsbry 82 Olsson, 1950. A-C: shell, 1.0 mm,
Witties, Nicaragua (MHNS); D: protoconch; E: details of the microscupture.
Figuras 41A-E. Anticlimax hispaniolensis cratera Pilsbry € Olsson, 1950. A-C: concha, 1,0 mm,
Witties, Nicaragua (MHNS); D: protoconcha; E: detalle de la microescultura.
tome thickened in the adult stage, distinguished by the shape and
as in A. annae”. larger extension of the columellar
This species has some similarity callus as well as the suppression of
to A. locklini, from which it can be the radiating waves on the base.
79
Iberus, 29 (2), 2011
Genus Aorotrema Schwengel € McGinty, 1942
Aorotrema Schwengel €: McGinty, 1942. The Nautilus, 56: 17 (as a subgenus of Cyclostrema).
Type species: Cyclostrema (Aorotrema) pontogenes Schwengel £ McGinty, 1942 (by original
designation).
Diaenosis stella je
whorls which are strongly angular
above, at the periphery and around
the broadly funnel shaped umbili-
cus; te aperture subimangular
peristome only shortly in contact
with preceding whorl or free”.
Remarks: Four species from the
western Atlantic have been
included in the genus Aorotrema:
A. cistronium (Dall, 1889a), A. pon-
togenes Schwengel € McGinty,
(AAA ea ic un sb
McGinty, 1945 and A. gardnerae
Pilsbry, 1953. The first three were
considered as recent species while
A. gardnerae was considered a
fossil species from the Miocene. Of
the recent species, A. cistronium
and A. pontogenes have been con-
sidered valid species. MOORE (1964:
189), after the examination of the
holotype of A. erraticum, decides
that it is a juvenile of Turbo cas-
tanea Gmelin, as a result of the sim-
ilarity of the details of the proto-
conch, shape, and teleoconch sculp-
ture. Also, after the examination of
a paratype of A. pontogenes he con-
sidered that it is a juvenile shell
probably of an Astraea. With
respect to A. gardnerae, the fossil
species from the Miocene, he stated
that by its shape it could be also a
juvenile Turbo. Therefore the simi-
larity between the species of
Aorotrema with young Turbo or
Astraea is evident, the latter differ-
ing by their possession of a calcare-
ous operculum.
Aorotrema cistronium (Dall, 1889) (Figures 42A-G)
Cyclostrema cistrontum Dall, 1889a. Bulletin of the Museum of Comparative Zoology, 18: 394,
(DaLtL, 1889b, pl. 42, fig. 11) [Type locality: off the coast of North Carolina [USFC stas. 2595,
2598, 2608, 2610, 2612 (DALL, 1889b)]].
Type material: Type in ANSP (178697). Not examined.
Material examined: Florida, USA: 1 s, E Gulf Blvd, NE end Sand Key (CHL); 42 s, trawled 27 m, 20
mi E St. Augustine, (CHL); 71 s, dived, sponge grunge 36 m, 45 mi E Mayport, Duval Co. (CHL);
1 s, dredged 54 m, 20 mi SE Pensacola Co, (CHL); 4 s, Ex batfish trawled, 39-45 m, 60 mi E Ponte
Vedra, St. Johns Co. (CHL); 1 s, dredged, 53 m, 65 mi E St. Augustine, St. Johns Co. (CHL). Fossil:
1 s, Pliocene of La Belle, FL (CHL).
Description: The original description
by DaLtL (1889) is as follows:
“Shell small, white, with a polished
nucleus, one and half rounded and as
many more carinated whorls; spire
depressed; radiating sculpture of fine
close flexuous threads, which appear
chiefly in the interspaces of the spirals,
giving the surface a minutely punctate
appearance; these extend over the
whole surface except of the nuclear
whorls; spiral sculpture of on the
summit seven or eight, between the
80
carinae six or eight, and on the base ten
or fifteen extremely fine threads, even
and uniform, with about equal inter-
spaces, some a little granular from the
radiating sculpture; beside these there
are three very strong carinae; one forms
the margin of the nearly flat spire, the
second extends horizontally just below
the periphery, the space between them
deeply excavated; the third forms the
edge of the funicular narrow deep
umbilicus. The base is conical, exca-
vated just within the peripheral carina;
RUBIO ET 4L£.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
it rises to the edge of the umbilicus,
which is marked by a strong thread, and
within is vertically striated. The last
whorl descends from the general plane
and finally becomes separated from the
body whorl; the margin is simple,
sharply angulated by the carinations,
otherwise the aperture would be ovate,
with the columellar side somewhat
excavated ”.
Alt. 1.6; max. diam. 2.0 mm.
Maximum reported size: 2.5 mm.
Habitat: Off the coast of North Car-
olina, in 22-63 fms (40-130 m), on a sand
and gravel bottom, in the warmer area
(DaLL, 1989a). From sponge-associated
debris, in 39 m, East of Mayport, Florida
(LEE, 2009).
Depth: 14 to 115 m (live 22 to 46 m).
Distribution: USA: North Carolina
(DaLL, 1989a), Texas (ODÉ, 1987b) and
Florida (LEE, 2009). CAMPBELL (1993)
recorded it as a fossil from the Pliocene
of Yorktown and Chowan river forma-
tions in Virginia.
Remarks: The material examined
agrees with that figured by PILSBRY
(1953, pl. 54, figs. 5-5c) from St. Peters-
burg Plio-Pleistocene.
Some shells (Fig. 43E) have a separa-
tion of the aperture from the terminal
body whorl.
Aorotrema pontogenes (Schwengel £: McGinty, 1942)
Cyclostrema (Aorotrema) pontogenes Schwengel € McGinty, 1942. The Nautilus, 56: 17-18, pl. 3,
fig. 3 [Type locality: South by West of Destin, Florida, 18 miles off shore].
Type material: A paratype in ANSP (178697). Not examined.
Description: This is the original
description in SCHWENGEL éz MCGINTY,
(1942): “The openly umbilicate, white
shell is strongly bicarinate with flattened
spire, of 3 whorls, the first two planor-
boid. The first 1 whorls are smooth,
convex, the convexity increasing on the
next whorl, and overhanging outward ly
on the last whorl, forming a strong but
blunt upper carina. There is a more
extended and somewhat up-curved carina
at the periphery, la deep concavity
between the two carinae. Below the
peripheral keel the surface slopes straight
to the prominent ridge around the umbili-
Cus.
On the last whorls there is a secondary
sculpture of fine low spiral threads, their
intervals crossed by finer growth lines,
giving a minutely punctate appearance in
some places; these spirals not extending
into the funnel-shaped umbilicus. Aper-
ture with the columellar margin deeply
concave in the middle. Outer lip inserted
just below the keel of next-to-last whorl,
gently sloping to the first carina, then
concave to the stronger and more
extended peripheral carina, below which
it slants straight to the base”.
Height 1.3 mm, diameter 1.9 mm.
The umbilicate shell is strongly
bicarinate. Protoconch of one whorl,
smooth and glassy. Teleoconch con-
sists of 1 Y whorls; the spire is
almost flat out to the shoulder.
Carina strongly angular and outer
slope is concave. Peripheral carina
strong and flat on top. Ornamenta-
tion formed by fine punctate spirals,
present over all the shell, even in the
inner umbilicus. Aperture modified
by the carina, columella large and
concave. Umbilicus narrow and
deep, well delimited by the umbilical
carina.
Habitat: Dredged in 18 to 20
fathoms (32-36 m), off Destin, North-
west Florida. Collected on sandy marl
bottom.
Distribution: USA: Florida: West
Florida (SCHWENGEL é MCGINTY,
1942).
Remarks: SCHWENGEL $
MCGINTY (1942) mention: “This
species is similar in size, sculpture
and form to C. cistronium Dall, but
the spire 18 flatter, second. carina
mue more “extend ea ep 1e -
8]
Iberus, 29 (2), 2011
Figures 42A-G. Aorotrema cistronium (Dall, 1889). A-E: shells, 2.1, 1.86, 1.8, 1.8, 1.7 mm,
Florida, (CHL); F: microsculpture; G: protoconch.
Figuras 42A-G. Aorotrema cistronium (Dall, 1889). A-E: conchas, 2,1, 1,86, 1,8, 1,8, 1,7 mm,
Florida, (CHL); E: microescultura; G: protoconcha.
crust” manner, the last whorl not MOORE (1964) thought this might be
descending and the aperture more juvenile Astralium phoebium.
angled and not separated from the We lack material on which to base an
body whorl as in C. cistronium”. opinion.
82
RUBIO £7 4Lz.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Genus Cyclostremiscus Pilsbry € Olsson, 1945
Cyclostremiscus Pilsbry €: Olsson, 1945: 266.
Type species: (by original designation) Vitrinella panamensis C.B. Adams, 1852. Proc. Acad. Nat.
Sci. Phila., 97: 266. Recent, Caribbean.
Diagnosis: The description of the
genus (PILSBRY € OLSSON, 1945) is as
follows: “Shell small, solid, moderately
strong, depressed or discoidal, much
wider than high, umbilicate, of few
whorls, from which the first 1 Y to 2
form a smooth glassy protoconch. Last
whorl typically with several spiral
angles or carinae. Their intervals
usually with lower axial riblets or
striae. Aperture subcircular or modi-
fied by the angles of the shell, the peri-
stome continuous, not thickened exter-
nally”.
Remarks: PILSBRY € OLSSON (1945)
introduced Cyclostremiscus for a series
of small or minute species, abundantly
represented in the West American
tropics. Some of them had been
described in the genera Vitrinella and
Cyclostrema. They designate Vitrinella
panamensis C. B. Adams, 1852 as the
type species of the genus; this species
is characterized by “the last whorl typ-
ically having several spiral angles or
carinae, their intervals typically with
lower axtal riblets or striae”.
PILSBRY (1953) described the sub-
genus Ponocyclus with Adeorbis
beauii as the type species, and distin-
guished it from Cyclostremiscus by its
lack of axial sculpture.
MOORE (1964) divides Cyclostrem-
iscus species into three small groups:
Cyclostremiscus beauti, C. dalli and C.
pentagonus are practically identical in
their general appearance; all have 2 or
3 keels on the periphery and several
grades of finer spiral sculpture. C. sup-
pressus and C. jeannae resemble each
other with their smaller umbilicus and
three-keeled periphery. C. cubanus
does not seem to have any relation to
any of the previously mentioned
species.
BIELER 6: MIKKELSEN (1988) after the
study of the anatomy of Circulus
texanus and Cyclostremiscus beauil
making a comparison with Circulus
striatus, conclude saying that the differ-
ences between both genera are mainly
anatomical.
PONDER (1994) mentions that the
assignation of Cyclostremiscus beauii to
the genus Cyclostremiscus needs a revi-
sion.
The genus Cyclostremiscus Pilsbry
£ Olsson, 1945 is based on Vitrinella
panamensis C.B. Adams, 1852. The type
species is small, has strong axial sculp-
ture (distinct axials lacking in Cy.
beauii), a few strong spiral ribs which
are rendered nodulose by the axials, and
has an apertural varix. These shell char-
acters are markedly discordant with
those of “Cy”. beauii. The genus Pono-
cyclus (Pilsbry, 1953) was erected for
Adeorbis beauti and it can be used for
this species.
If we accept this establishment, we
could differentiate this group of species
placing them outside Cyclostremiscus
and including them in Ponocyclus, but
this could only be tentative, because it is
necessary to have an anatomical study
of each species in order to decide their
correct final position.
RuBIO € ROLÁN (1998) presented
radular information on Pachystremiscus
ornatus Olsson € McGinty, 1958 and
Pachystremiscus pulchellus Olsson €
McGinty, 1958 and placed both species
in the genus Lodderena (Archaeogas-
tropoda, Skeneidae), considering the
genus Pachystremiscus as a synonym.
We have considered the comments
of BIELER é MIKKELSEN (1988) and
PONDER (1994) about the differences
between Circulus and Cyclostremiscus,
which are mainly anatomical. Also there
is not a basic model of morphological
characters which allows us to place the
species in one or the other genus. So, it
is very difficult to make a generic differ-
entiation in the known species placed in
group 1, which could be placed also in
83
Iberus, 29 (2), 2011
Circulus. Only an anatomical study of
each of them would allow us to know
the correct genus. For all of these
reasons, we prefer to keep these
species in their present status, as con-
sidered by other authors.
The genus Cyclostremiscus is in
our opinion one of the most concho-
logically heterogeneous of those
within the subfamily Vitrinellinae. All
the previously described recent taxa
have been studied and figured in the
present work, and two taxa new to
science are also treated.
In an attempt to better differentiate
Cyclostremiscus species we have distin-
guished two groups which clearly differ
from the other congeners:
Group 1. Cyclostremiscus beauti — C.
multiliratus - C. dalli — C. pentagonus —
C. trilix —C. hendersonl.
Group 2. C. bartschi (only fossil) - C.
jeannae - C. suppresus - C. vanbruggen1
Es
The species not included in these
groups have such distinctive morpho-
logical characters that their identifica-
tion is relatively simple.
Group 1
These species are quite similar in general appearance; all have 2 or 3
peripheral keels and several degrees of smaller spiral sculpture.
Cyclostremiscus beauii (P. Fischer, 1857) (Figures 43A-E)
Cyclostrema angulatum auct. non A. Adams, 1850.
Adeorbis beauii P. Fischer, 1857. Journal de Conchyliologie, 6: 286, pl. 10, fig. 12. [Type locality:
Guadeloupe].
Cyclostrema bicarinatum Guppy, 1866. Quarterly Journal of the Geological Society of London,
22(1): 281-295, pls. 16-18. [Type locality: “Miocene” (Lower Pliocene), Jamaica].
Skenea sulcata Simpson, 1887: 61 [nomen nudum, see MOORE, 1964: 131].
Adeorbis beauii bicarinatus (Guppy, 1866): Dall, 1903: 1595. [Type locality: Oligocene of Jamaica].
Circulus bicarinatus (Guppy, 1866): in WOODRING, 1828: 439, pl. 37, figs. 10-12.
Circulus stirophorus M. Smith, 1937. The Nautilus, 51: 67, pl. 6, figs. 2a, b [Type locality: Plio-Pleis-
tocene, Florida].
Type material: BIELER 8 MIKKELSEN (1988) designated the only specimen extant in the MNHN, cor-
responding to the lot deposited by Fischer, as lectotype.
Other material examined: Florida, USA: 2 s, 39-45 m, 50-60 mi., E Ponte Vedra, St. Johns Co., Fla.
(CHL); 3 s, Delray Beach, Palm Beach Co. Fla (CHL); 2 s, 2 j, near Mantis Shrimp Holes, St. Lucia
Inlet, Stuart Martin Co., Fla. (CHL); 1 s, 84 m, WNW Tortugas (CHL); 2 s, 54-60 m, Cedar Keys, Fla
(CHL). Cuba: 3 s, Cienfuegos Bay, 10 m (MHNS). Colombia: 1 s, Cayos de San Andrés, in coral bottom
20-25 m (CHL).
Description: It is one of the
better studied species of the Vit-
rinellinae, including morphology,
radula, ecology, and anatomy, see
BIELER 6 MIKKELSEN (1988).
Maximum reported size: 12.5
mm. The studied and pho-
tographed material (Figs. 43A-C)
from Cuba measures 8.1 mm in
maximum diameter and 3.0 mm
in height. The shell from Colom-
bia in the CHL is 10.1 mm.
84
Distribution: The species is
known in the Western Atlantic,
from North Carolina to Brazil.
Recorded from Puerto Rico
(WARMKE é ABBOTT, 1975). From
Campeche to Ciudad del
Carmen and Zacatal, from El
Euyo ito Ninum Pont trom
Yalkupul Point to Cerritos
Island and from Cancún to the
Belize border, Mexico (VOKES éx
VOKEs, 1983). From North Car-
RUBIO ET AL.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 43A-E. Cyclostremiscus beauii (P. Fischer, 1857). A-C: shell, 8.1 mm, Cienfuegos Bay,
Cuba; D: protoconch; E: detail of the microsculpture.
Figuras 43A-E. Cyclostremiscus beauii (P Fischer, 1857). A-C: concha, 8.1 mm, Bahía de Cienfue-
gos, Cuba; D: protoconcha; E: detalle de la microescultura.
olina to Florida; the Antilles;
Ceará, Pernambuco and
Alagoas, Brazil (Rios, 1985).
Guadaloupe; Jamaica; Florida;
the Antilles; North Carolina;
Dry Tortugas; Sint Maarten;
Colombia; from North Carolina
to Brazil (BIELER € MIKKELSEN,
1988). "Aruba. (DE JoNnec. €
COOMANS, 1988). From North
Carolina to Brazil (ROBINSON,
1991). From North Carolina to
the central coasts of Brazil (DíAZ
MERLANO € PUYANA HEGEDUS,
1994). Carolinas to West Indies
(Morris, 1973). Laguna Indian
River, Florida (MIKKELSEN ET AL,
1995). Cuba (ESPINOSA ET AL.,
1985).
Habitat: BIELER € MIKKELSEN
(1988) reported this species
inhabiting burrows of the stom-
atopod Lysiosquilla scabricauda
(Mantis Shrimp), between 0.5
85
Iberus, 29 (2), 2011
and 1 m in depth. Other authors
mention its shells in the diges-
tive tracts of the seastar
Asno pe cien anciana
1825), probably as prey, but par-
asitism is possible. Other
recorded habitats are between 0
and 46 m in depth, sand,
muddy, and rocky bottom
(VOKES é VOKES, 1984); sand in
shallow water (Díaz MERLANO
é£ PUYANA HEGEDUS, 1994), but
these are based on empty shells.
Discussion: €. beautt is the
largest vitrinelid in the West
Atlantic. It may be «distin-
guished from other known
species by its larger size, by its
bicarinate periphery, and by the
numerous and strong spiral cords
which form its dorsal sculpture.
Two recent species (Cyclostrem-
iscus major Olsson € Smith, 1951
and Cyclostrema gordana
Hertlein é Strong, 1951) from the
Panamic region are very similar
nsize, isculpture tan docu
BIELER 6 MIKKELSEN (1988) con-
sider Cyclostrema bicarinata
Guppy and Circulus stirophorus
Smith synonyms of C. beauii,
indicating that the variation in
the basal sculpture, probably due
to ontogenetic change, was not
enough reason for their differen-
tiation.
Cyclostremiscus multiliratus spec. nov. Rubio, Rolán € Garcia (Figures 44A-F)
Type material: Holotype (Figs. 44A-C) in USNM (1155028) (ex CEG).
Type locality: SW Florida, 2751.79 N — 84*59.82'W, dredged in 308-323 m.
Etymology: The name refers to the numerous cords on the dorsum.
Description: Shell (Figs. 44A-C)
planispiral with spire slightly elevated,
periphery bicarinate, and a wide
umbilicus. Protoconch (Fig. 44F)
slightly projected, with 1 Y. whorls, and
a maximum diameter of about 530 um,
apparently smooth with two stages dist
inguis-hable: the first one, embry-
onic] with % whorls; the second part is
almost Y whorls. Indistinct separa-
tion from the rest of the shell. Teleo-
conch with 2 “4 whorls; sculpture
formed by 2 keels which define the
periphery of the shell, one placed on
the middle part and the other in the
basal area. First whorl with 10-12 spiral
cordlets, with axial growth lines in
the interspaces. The dorsum on the last
whorl has 18-20 spiral cords, of which 6
are very closely-placed and near the
suture and 3-4 near the peripheral keel;
the interspaces between the cords are
covered by microtubercles. Between the
peripheral keels there are 10-12 fine
spiral cordlets with regular
interspaces. On the base there is a spiral
cord limiting the umbili-
cal infundibulum. Base and inside the
86
umbilicus with numerous fine spiral
cordlets. Aperture almost quadrangu-
lar, prosocline. Peristome modified by
the peripheral keels; columellar
area arched, parietal zone not thick-
ened.
The holotype measures 3.18 mm in
maximum diameter.
Distribution: Only known from SW
Florida, its type locality.
Habitat: Deep water, dredged at
308-323 m deep.
Remarks: C. multiliratus spec.
nov. is very similar in its general
appearance to C. beauii, but the
latter is larger, its protoconch has a
smaller diameter, and the number of
dorsal cords is smaller (5-7). Further, it
lacks microtubercles between the dorsal
cords and cordlets between the two
peripheral keels.
Another similar species is C. dalli,
but it lacks ornamentation between the
cords, has fewer dorsal cords, which
are stronger and more elevated, and
lacks spiral cordlets between the
peripheral keels. Both species have a
wide bathymetric range.
RUBIO £7 AZ.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 44A-E Cyclostremiscus multiliratus spec. nov. Rubio, Rolán 82 García. A-C: holotype, 3.18
mm (USNM); D: dorsal microsculpture; E: peripheral microsculpture; F: protoconch.
Figuras 44A-E Cyclostremiscus multiliratus spec. nov. Rubio, Rolán ** García. A-C: holotipo, 3,18
mm (USNM); D: microescultura dorsal; E: microescultura periférica; E: protoconcha.
Iberus, 29 (2), 2011
Cyclostremiscus dalli (Bush, 1897) (Figure 45A-D)
Circulus dalli Bush, 1897. Transactions of the Connecticut Academy of Arts and Sciences, 10: 126,
pl. 23, figs. 3-3a, 6. [Type locality: USFC sta. 2655, 27*22'N, 78%07'30"W].
Lydiphnis dalli (Bush, 1897).
Type material: Holotype in YPM (15802); paratype in USNM (44983). Not examined.
Other material examined: Florida, USA: 1 s, 36-90 m, off Dry Tortuga, Gulf of Mexico (CHL).
Description: The original
description (BusH, 1897) is as
follows: “This deep-water species is
of more delicate texture and more
transparent than the more northern
shallow-water species of similar
form. It is ornamented on the body-
whorl with two rather inconspicu-
ous carinae, one defining the base
and the other on the periphery;
above tiistle is una ce isc UanO Y
aboutaseventa delicate mea ua
microscopic shallow grooves or
striae, the two uppermost being the
most distinet; above hesenive
surface is smooth and appears
somewhat flattened; there are also a
few less distinct striae below the
peripery anda nte uno dlical
region. Greatest oidii 0 an;
height: 1.4 mm”.
We add: This larger species (Figs.
45A-C) is characterized by having 2
strong keels, one basal and the other
at the middle of the periphery. On
the dorsum, between the peripheral
keel and the suture, 4-6 strong spiral
cords can be observed without any
sculpture between the cords except
for very fine growth lines. Near the
base there are about 8 spiral cords, a
little smaller that the dorsal ones
and 3-4 more very fine threads
inside the umbilicus. The proto-
conch (Fig. 45D) is wide, and has a
little more than one whorl, about
540 um in diameter, apparently
smooth but perhaps with some
small axial cordlets mainly at its ter-
minus.
Maximum reported size: 4 mm.
The shell figured here is 4,3 mm in
diameter and 1.87 mm in height.
Habitat: Among Foraminifera, in
338 fms (608 m) (Bush, 1897). Bathy-
metric range: 79 to 618 m.
Distribution: USA: North Car-
olina, Eloridas lord ae ys
Bahamas: Great Bahama Bank
(BusH, 1897 and MOORE, 1964).
Remarks: This larger species,
with its inconspicuous sculpture,
seems to be a connecting link
between the distinctly grooved ones
and the carinated ones, so we can
make a series of gradation in sculp-
ture from the smooth variety of
Cyclostremiscus supranitidus, fol-
lowed by C. supranitidus (typical),
a Co a Cs SUCUaLa, (Co SÉFUOS
tus, up to the strongly grooved C.
liratus (Bush, 1897). The latter
species may be distinguished from
E pentaco nus ando
having two peripheral keels instead
of three.
Cyclostremiscus pentagonus (Gabb, 1873) (Figures 46A-F)
Adeorbis supranitidus auct. non Wood, 1842.
Cyclostrema pentagonum Gabb, 1873. Amer. Philos. Soc. Trans. New series, 15: 243. [Type local-
ity: Miocene of the Dominican Republic].
Vitrinella pentagonus (Gabb, 1873): GABB, 1881: 368, pl. 47, fig. 68.
Cyclostremiscus pentagonus (Gabb, 1873): WOODRING (1928: 73).
Type material: Holotype in ANSP (2831) represented in MOORE (1964, fig. 23). Not examined.
Material examined: Cuba: 5 s, Rancho Luna Beach, 40 m (MHNS); 2 s, Cienfuegos Bay, 10 m (MHNS).
88
RUBIO £7 AZz.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 45A-D. Cyclostremiscus dalli (Bush, 1897). A-C: shell, 4.3 mm, off Dry Tortuga, Florida
(CHL); D: protoconch.
Figuras 45A-D. Cyclostremiscus dalli (Bush, 1897). A-C: concha, 4,3 mm, frente a Dry Tortuga,
Florida (CHL); D: protoconcha.
Description: Shell (Figs. 46A-C)
rounded, depressed, whitish to yel-
lowish brown in color, solid. Proto-
conch (Fig. 46D), erect projecting,
with a little more than 2 whorls,
smooth or slightly rough, and with a
diameter of about 420 um. Two well
differentiated parts can be seen on it:
the first one, embryonic, is shorter,
with a little more that % whorl; the
second is almost 1 Y whorls. The sep-
aration from the rest of the shell is
distinct. Teleoconch with 2 rapidly-
increasing whorls; sculpture formed
by 3 keels which define the periphery.
There is a spiral cord which delimits
89
Iberus, 29 (2), 2011
Figures 4G6A-E. Cyclostremiscus pentagonus (Gabb, 1873). A-C: shells, 2.9, 2.7, 2.3 mm, Rancho
Luna Beach, Cienfuegos, Cuba (MHNS); D: shell, 2.1 mm, Brazil (CHL); E: microsculpture; E:
protoconch.
Figuras 4GA-E Cyclostremiscus pentagonus (Gabb, 1873). A-C: conchas, 2,9, 2,7, 2,3 mm, Playa
Rancho Luna, Cienfuegos, Cuba (MHNS); D: concha, 2,1 mm, Brasil (CHL); E: microescultura; F:
protoconcha.
the umbilicus and fine spiral cords
more evident in the spaces between
the keels. Also there are fine sinuous
axial growth lines. Umbilicus wide
and deep exposing the previous
90
whorls, even the protoconch; on its
interior up to 5 spiral cords can be
seen. Aperture hexagonal, more dis-
tinctly at the periphery because of the
keels.
RUBIO ET AZz.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Dimensions: The holotype mea-
sures 3.5 mm. The studied shells were
up to 2.96 mm in maximum diameter.
Habitat: The bathymetric range of
this species is very wide, having been
recorded between 0 and 538 m in
depth for the three synonymized
species; the records for living speci-
mens are between 0 and 45 m:
between 13 and 31 m (ABBOrTT, 1974);
in muddy sand in the surf zone
(ANDREWS, 1977); in shallow water
beetween 13 and 30 m in depth (Díaz
MERLANO éz PUYANA HEGEDUS, 1994).
Distribution: USA, Mexico, Costa
Rica, Colombia; Venezuela, Puerto
Rico and Cuba. Recorded from Cape
Hatteras, North Carolina (Bush, 1885).
From Puerto Rico (WARMKE é€ ABBOTT,
1961). From North Carolina, north-
western Florida and Alabama, Texas
and Campeche Bank, Miocene and
Pliocene of Panama, Jamaica, Domini-
can Republic and Florida (MOORE,
1964). From North Carolina (PORTER,
1974). Off North Carolina to Florida,
Texas and the West Indies (ABBOTT,
1974; EMERSON é€ JACOBSON, 1976).
From the southeast of USA to the
Antilles and Texas (ANDREWs, 1977).
From Laguna de Termino, Campeche
(GARCÍA-CUBAS, 1981). From Vene-
zuela (PRINCZ, 1982). From Campeche
to Ciudad del Carmen and Zacatal,
and from Cancún to the Belize border,
Mexico (VOKEÉS € VOKES, 1984). From
Puerto Rico (ORTIZ-CORPS, 1985). From
Moín, Costa Rica (ROBINSON éz
MONTOYA, 1987). From North Carolina
to Florida, Texas and the Caribbean
Sea (Lyons, 1989). From off North Car-
olina to the Caribbean (ROBINSON,
1991). North Carolina Florida, West
Indies, South Brazil (Rios, 1994). From
North Carolina to the South American
coast (Díaz MERLANO é PUYANA
HEGEDUS, 1994). From Cuba (EspI-
NOSA, FERNÁNDEZ-GARCÉS € ROLÁN,
1995). From Abaco, Bahamas Islands
(REDFERN, 2001). From Cahuita to
Gandoca, Costa Rica (ESPINOSA éz
ORTEA, 2001).
Remarks: Until its definitive place-
ment in Cyclostremiscus, this species
was placed in the genera Adeorbis,
Circulus, Lydiphnis, Skenea and Vit-
rinella. The prominent protoconch and
its tricarinate periphery in the recent
samples, give the shells of this species
a Characteristic appearance and easily
distinguish it from congeneric species.
MOORE (1964) mentioned having seen
living specimens of this species, and
the animals showed the typical charac-
ters of the vitrinellids, with ciliated
tentacles and without epipodia.
Cyclostremiscus trilix (Bush, 1885) (Figures 47A-D)
Skenea trilix Bush, 1885. Expl. Albatross. Report U.S. Com. Fish and Fisheries for 1883: 464.
[Type locality: Off Cape Hatteras, North Carolina, 7-17 fathoms (13-31 m) [USFC sta. 2113
(JOHNSON, 1989)]|].
Circulus trilix (Bush, 1885): Bush, 1897: 127, pl. 22, figs. 6, 10, 12; pl. 41, fig. 7.
Cyclostremiscus trilix (Bush, 1885) in MOORE (1961: 18).
Type material: Holotype in USNM (35365). Not examined.
Material examined: Panama: 1 s, 600-700 m, off Atlantic coast (CHL).
Description: The original descrip-
tion in BusH (1885: 584) is as follows:
“This species closely resembles Adeor-
bis supranitida Wood, in form and
seulpture, butt has a thin, horny
operculum and an animal like
Skenea”. Depth range, 14 to 15
fathoms (25-27 m).
BIELER € MIKKELSEN (1988)
mention: “Based on the misconception
that these species are archaeogas-
tro piods; BUSsa (1997:127, 142, ple 22,
figs. 47A-G) erroneously constructed a
rhipidoglossate radula for Circulus
trilix (Bush, 1885) [= Cyclostremiscus
pentagonus (Gabb, 1837), fide MOORE,
Sn
Iberus, 29 (2), 2011
Figures 47A-D. Cyclostremiscus trilix (Bush, 1885). A-B: shells, 2.3, 1.7 mm, 600-700 m, off
Atlantic coast, Panama (CHL); C: microsculpture; D: protoconch.
Figuras 47A-D. Cyclostremiscus trilix (Bush, 1885). A-B: conchas, 2,3, 1,7 mm, 600-700 m, frente
a la costa Atlántica, Panamá (CHL); C: microescultura; D: protoconcha.
1964: 138]”. Its radula is taenioglos-
sate like any species of the Tornidae.
We add: Protoconch (Fig. 47D)
projecting with almost 1 % smooth
whorls, about 440 um in maximum
az
diameter; under high magnification
irregular microtubercles can be seen
on its surface. A strong varix marks
the transition to the teleoconch. On
its first quarter whorl the teleoconch
RUBIO ET AL.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
exhibits a strong spiral cord which
will later become a keel placed on
the dorsal aspect of the periphery.
There is no other dorsal spiral sculp-
ture. On the ventral aspect, three
spiral cords delimit the umbilicus.
Aperture rounded; peristome contin-
u0us.
Maximum reported size: 3 mm
Habitat: The bathymetric range of
this species is quite ample, having
been collected between 2 and 538 m
in depth. The species is relatively
common in Cape Hatteras between 7
and 17 fms (19-31 m) of depth. The
living material was collected
between 26 and 27 m (Bush, 1897).
Distribution: USA: Massachu-
setts, North Carolina (Bush, 1885b;
DaLL, 1927), Florida: West Florida
(MOORE, 1964); Texas (PARKER, 1959;
MOORE, 1964); Puerto Rico (WARMKE
éz ABBOTT, 1961).
Remarks: Cyclostremiscus trilix
was described initially in the
genus Skenea and later transferred
to the genus Circulus, Lydipnis
and Vitrinella. WOODRING (1957)
gives a lengthy discussion on C.
trilix and C. pentagonus, conclud-
ing that the only difference was
that C. trilix was larger. MOORE
(1964) considers the two synony-
mous.
We believe that there are
enough characters to distinguish
these two taxa at the species level.
The presence of microtubercles on
the protoconch and the lack of
spiral microsculpture between the
perypheral keels allow us to differ-
entiate Cyclostremiscus trilix from
Cyclostremiscus pentagonus. The
shell figured here is very similar to
that described and figured by
BusH (1897).
Cyclostremiscus hendersoni (Dall, 1927) (Figures 48A-F)
Lydiphnis hendersoni Dall, 1927. Proceedings of the United States National Museum, 70(2667):
124-125. [Type locality: Off Georgia].
Circulus henderson1 Dall.
Type material: Lectotype (Figures 48A-F) in USNM (108396). Examined by SEM.
Other material examined: None.
Description: This is the original
description by DaLL (1927): “Shell
small, white, depressed, glassy, with
about three tricarinate whorls, the
nucleus deeply sunken; axial sculpture
of faint incremental lines, on the spire
retractively oblique and on the base
protractively arcuate; spiral sculpture
of a prominent carina at the periphery,
a less prominent one on the spire about
one-third of the way from the suture to
the periphery, and on the base another
slightly nearer the umbilicus than to
the periphery; these two secondary
keels are variable, sometimes strong,
sometimes almost obsolete, sometime
partly one or the other on the same
specimen; the edges of the carina are
sometimes finely spirally striated, sug-
gesting that they may when fresh and
intact carry a series of epidermal
fringes like Episcynia; the space within
the basal carina is funicular, extending
to a moderately narrow perforate
umbilicus; the aperture would be
rounded, but in those specimens in
which the carinae are all developed the
thin margin is modified and the aper-
ture is angulated by them; in some
specimens faint spiral striation is indi-
cated on the. surface between the
carinae; the margin of the aperture in
the adult is continuous over the body
of the shell. Maximum diameter, 3.5
mm; minimum diameter, 2.9 mm;
height, 1.3 mm”.
We add: The protoconch (Fig. 48F)
is of small size, has a rough aspect and
terminates with a thickened varix. Size
about 170 um in maximum diameter.
73
Iberus, 29 (2), 2011
Figures 48A-E. Cyclostremiscus hendersoni (Dall, 1927). A-E: Lectotype in different positions, 3.5
mm (USNM, 108396); F: protoconch.
Figuras 48A-E Cyclostremiscus hendersoni (Dall, 1927). A-E: Lectotipo en distintas posiciones, 3,5
mm (USNM, 108396); F: protoconcha.
The teleoconch has a very prominent
peripheral keel placed in the middle of
the shell; also two less prominent cords,
one of them on the dorsum at the mid-
point between the suture and the outer
94
keel; and the other ventral, closer to the
periphery. The dorsal cord slowly fades
out disappearing near the middle of the
body whorl. Under high magnification
very fine spiral striae can be seen in the
RUBIO ET 4£.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
spaces between the cords and the keel.
Another character typical of this shell
is that the last whorl envelops the pre-
vious one below the peripheral keel,
which, being prominent, hides this
suture. A thickening of the umbilical
wall progressively covers the umbili-
cus, which is narrow and deep. Inter-
nal lip a little thickened and reflected
outward, further impinging on the
umbilicus.
Habitat: Dredged from 805 meters
depth, in broken coral, on a coarse
sand and broken shell bottom, where
numerous samples were collected.
Distribution: Only known from the
type locality.
Remarks: DALL (1927) mentions the
following: “The periostracum on Epis-
eynia is extremely fugacious, and it is
not prudent to assume that these and
other small shells dredged and
showing none are normally without
one. Á few have a persistent perios-
tracum, and there is no good reason to
suppose that others never posses one”.
The depressed spire, the tricarinate
shell, with spiral striae between the
keels, and the form of the umbilicus
allow us to place this species in the
genus Cyclostremiscus. Only the pro-
toconch gives us some doubts, which
can not be resolved due to the lack of
live-collected material to permit study
of the radula. Cyclostremiscus pen-
tagonus, C. trilix and C. dalli are the
species with greatest affinity, princi-
pally because of their shells bearing
three spiral keels. The present species
can be distinguished from them by the
form of the inner lip and the ornamen-
tation of the umbilicus.
Group 2
This group of species clearly shows the evolution from the fossil forms with
elaborate ornamentation (Cyclostremiscus bartschi) towards the recent
species with more subdued sculpture (Cyclostremiscus spec. nov.).
Cyclostremiscus bartschi (Mansfield, 1936) (Figures 49A-D)
Cyclostrema bartschi Mansfield, 1936. Florida State Geol. Surv. Bull. N* 3: 132, pl. 20, figs. 13-15.
[Type locality: Upper Miocene of Harveys Creek, Leon Co., Florida] Fossil.
Material examined: Florida, USA: 1 s, Plio-Pleistocene Belle (CHL).
Description: In PiLsBRY (1953): “Shell
is rather solid, discoidal, the upper
surface flattened, with a spiral ridge
midway on the last whorl, the vertical
peripheral zone bounded by keels above
and below; the base with a prominent
keel bounding a broad, conic umbilicus.
There are 3 Y whorls, the first weakly
convex; following half turn is narrower.
After the second turn the whorls in
apical view are somewhat concave and
weakly folded radially on both sides of
a median spiral ridge. The peripheral
zone has oblique folds, and base is
folded radially. Umbilicus is conic and
has smooth, straight sides. The aperture
is moderately oblique, more or less dis-
tinctly hexagonal, the peristome blunt,
thickened at the basal angle and col-
umellar slope, continued in a rather
thick parietal callus, which is slightly
advanced beyond the upper angle of the
mouth”.
Height 0.9 mm, diameter 1.55 mm.
Habitat: Dredged from 28 and 30
fms (50-54 m), Sta. 2112 and 2110.
Distribution: TREECE (1980) mentions
this species from the northeastern shelf
and upper slope of Yucatan. Rios (2009)
also records it from Guatemala and East
Brazil.
Remarks: This species was initially
considered exclusively fossil following
its original description. TREECE (1980)
SS
Iberus, 29 (2), 2011
Figures 49A-D. Cyclostremiscus bartschi (Mansfield, 1936). A-D: shell, 1.4 mm, Plio-Pleistocene of
La Belle, Florida (CHL); D: protoconch.
Figuras 49A-D. Cyclostremiscus bartschi (Mansfield, 1936). A-D: concha, 1,4 mm, Plio-Pleistoceno
de La Belle, Florida (CHL); D: protoconcha.
mentioned it as a recent species from
Yucatan, Gulf of Mexico, but this record
was considered dubious by Malacolog,
version 4.1.1. . A
Database of Western Atlantic Marine
Mollusca. Rios (2008) recorded it again
from Guatemala and East Brazil, and
based on these records we have consid-
ered Cyclostremiscus bartschi as a
96
recent species. Morphologically, the
vertical periphery, limited by two
keels, and the wide spiral cord placed
on the dorsum and on the base of the
shell are the main differential charac-
ters to distinguish it from closely
related species. The nodules on the
cords and keels are formed by the
intersecting axial ribs.
RUBIO ET 4£.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Cyclostremiscus jeannae Pilsbry ££ McGinty, 1946 (Figures 50A-D)
Vitrinella panamensis auct. non C.B. Adams, 1852.
Cyclostremiscus jeannae Pilsbry £ McGinty, 1946. The Nautilus, 59: 82, pl. 8, figs. 4-4a. [Type
locality: Off Palm Beach, Florida].
Type material: Holotype in ANSP (181371). Figured by MOORE (1964, fig. 25). Not examined.
Material examined: Florida, USA: 1 s, 60 m, off Sombrero Light, Key Vaca, Monroe Co. (CHL); 1 s,
dredged, 30 m, 32 mi E St. Augustine, Dt. Johns Co. (CHL); 1 s, 26 m, Tanzler's Waters, 23 mi ENE
Mayport, Duval Co. (CHL); 1 s, 27.75 mi ESE Mayport, Duval Co. (CHL). St. Kitts € Nevis: 1 s, 18
m, base of the reef, Monkey Shoals (CHL). Guadeloupe: 1 s, lle d'Aves, Saint Martin Island, 8 m
(EJE)!
Description: Shell (Figs. 50A-B)
depressed, spire flat, periphery flat,
tricarinate, but central carina weak,
umbilicus funnel shaped with strong
delimiting carina. Protoconch (Fig.
50C) of about 1 % -2 whorls; smooth
and glassy, about 250 um in diameter.
The end of the protoconch not clearly
marked lacking a varix. Sculpture
formed by a tricarinate periphery.
There is a weak spiral rib on the
middle of the dorsal side and a low
cord at the suture. The base is smooth
except for weak axial costulation.
Umbilicus funnel shaped with flat
walls, bordered by a strong descend-
ing carina. Aperture strongly modi-
fied by the carina and peripheral
keels. The parietal callus is rather
heavy and extends a little in front of
the aperture.
Dimensions: The holotype size is
2.3 mm. The studied shells average
1.52 mm in maximum dimension
(diameter).
Habitat: The bathymetric range of
this species is ample, having been
recorded between O and 128 m in
depth; but the records for living mate-
rial are between 42 and 91 m.
Distribution: It has been recorded
from USA, off Palm Beach, Florida
(PILSBRY € MCGINTY, 1946); Colón and
Bocas Island, Panama (OLsson é
MCGINTY, 1958); Florida Peninsula,
from Palm Beach to St. Petersburg
(MOORE, 1964); North Carolina
(PORTER, 1974); South half of Florida to
Texas, Costa Rica and Panama (ABBOTT,
1974); Portete, Costa Rica (HOUBRICK,
1968; ROBINSON é MONTOYA, 1987);
Louisiana and Texas (ODÉ, 1988); South
Florida to Texas, Costa Rica and
Caribbean Panama (Lyons, 1989);
Mexico: Veracruz and Campeche State
(REGUERO é GARCÍA-CUBAS, 1991);
South Florida and from Texas to
Panama and Colombia (Díaz MERLANO
éz PUYANA HEGEDUS, 1994); northeast
Florida (LEE, 2009).
Remarks: The flat spire, the flat-
tened periphery and the strong,
descending umbilical carina are the
important characters of the species. C.
jeannae has a much larger umbilicus
with a stronger bordering carina than
C. suppressus (Dall, 1889). A similar
species is C. bartschi (Mansfield, 1930),
but it lacks the weak central keel on the
periphery.
Cyclostremiscus suppressus (Dall, 1889) (Figures 51A-H)
Teinostoma (Ethalia) suppressa Dall, 1889a. Bulletin of the Museum of Comparative Zoology 18:
1-492, pls. 10-40. [Type locality: Goodland Point, West Florida].
Circulus suppressus (Dall, 1889).
Material examined: USA, Florida: 3 s, Anclote Key, Tarpon Springs (CHL); 1 sp, Sunset Park, Tarpon
Springs, Pinellas Co. (CMK); 2 s, NE end Sand Key, Little Pass, Pinellas Co. (CHL); 1 s, Seaquar-
ium Flats, Virginia Key, Dade Co. (CHL); 1 s, dredged 1.5-3 m, 5 mi SW Cedar Key, Levy Co. (CHL).
Louisiana: 2 s, Last Island, Terra bone (CEG).
97
Iberus, 29 (2), 2011
Figures SOA-D. Cyclostremiscus jeannae Pilsbry 8 McGinty, 1946. A-B; shells, 1.5 mm, San
Martin Island (CJP); C: shell, 1.7 mm, Sombrero Light, Key Vaca, Florida (CHL); D: protoconch.
Figuras SOA-D. Cyclostremiscus jeannae Pilsbry Y McGinty, 1946. A-B; conchas, 1,5 mm, San
Martin Island (CJP); C: concha, 1.7 mm, Sombrero Light, Key Vaca, Florida (CHL); D: protoconcha.
Description: Shell (Figs. 51A-D)
depressed, spire flat, periphery strongly
tricarinate, additional spiral carina close
to suture, umbilicus minute, con-
stricted, carinate. Protoconch (Fig. 51E)
with 2 whorls, smooth and flat, and a
diameter of about 390 um. Teleoconch
formed by about 2 whorls. Spiral sculp-
ture consists of 3 narrow sharp keels on
the periphery, the middle one a little
more prominent than the others. Near
the suture there is another less promi-
nent keel. Base flattened, bordered by
the lower peripheral carina on the
outher edge, and by another carina
around the umbilicus. Aperture
oblique, parietal callus wide and with a
sulcus on the upper inner angle.
Umbilicus narrowed by the thickened
inner wall.
Dimensions: Maximum reported
size: 2.4 mm. The figured specimens
measure 1.5 and 1.8 mm in maximum
diameter.
Habitat: Depth: O to 58 m (live 0.6
m). MOORE (1964) reported that this
98
species lives in shallow water strictly
and is restricted to continental shores.
Distribution: USA: North Carolina,
Florida: East Florida, West Florida
(DAEL, 18892. OANSONAA U9OSd)
Louisiana, Texas; Mexico: Campeche
State, Yucatan State. Recorded from
Goodland Point; Hemphill and Baker's
Haulover, Biscayne Bay, Florida
(PiLSsBRY éz MCGINTY, 1946) and from
the lower east coast and entire west
coast of Florida and the coast of Texas
(MOORE, 1964; EMERSON é JACOBSON
(1976); from North Carolina (PORTER,
1974); from Louisiana and Texas (USA)
and Campeche State and Yucatan State,
Mexico (ODÉ, 1988).
Remarks: The flat spire, the three
strong and sharp carinae, and the
reduced umbilicus are the identifying
characters of this species.
The "shells+trom-*" Last Island;
Terrabone, Louisiana, are apparently
more depressed, present two strong
cords on the dorsum, one of them near
the suture, and the umbilicus is a little
RUBIO ET ALz.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 51A-H. Cyclostremiscus suppressus (Dall, 1889). A-D: shells, 1.5, 1.8 mm, Pinellas Co.,
Florida (CMK); E: protoconch. F-H: shells, 2.2, 2.1 mm, Last Island, Terrabone, Louisiana
(CEG).
Figuras 51A-H. Cyclostremiscus suppressus (Dall, 1889). A-D: conchas, 1,5, 1,8 mm, Pinellas Co.,
Florida (CMK); E: protoconcha. F-H: conchas, 2,2, 2,1 mm, Last Island, Terrabone, Louisiana
(CEG)
Iberus, 29 (2), 2011
more closed than in shells from Florida.
This could represent the morphological
variability of the species.
The closest species is Cyclostremis-
cus jeannae, which is distinguished by
the lack of pronounced peripheral keels
and the presence of a wide umbilicus.
Cyclostremiscus colombianus Pilsbry
$ Olsson, 1845 is morphogically
similar.
Cyclostremiscus vanbruggeni de Jong € Coomans, 1988 (Figures 52A-E)
Cyclostremiscus vanbruggen1 de Jong € Coomans, 1988. Studies on the Fauna of Curacao and
other Caribbean Islands, 69: 32, pl. 2, fig. 136. [Type locality: Curacao / Arubal.
Type material: Holotype in ZMA (3.87.063). Not examined.
Material examined: Brazil: 2 s, Praia da Itararé, Sáo Vicente, Sáo Paulo (CHL). Trinidad and Tobago:
Tobago, 1 s, Scarborough (CHL).
Description: The original description
is as follows: “Shell wider than high.
The sculpture consists of fine spiral
striae and low radial ribs which on the
upper side of the last whorl are weak or
nearly absent. On the periphery at the
beginning of the last whorl there are 3
smooth keels of which the middle one
soon disappears and gradually also the
upper one, so that near the aperture
practically only the lower keel remains.
On the upper side there is a ridge which
eradually fades away. The very wide
umbilicus is bordered by a rid ge”.
Maximum reported size: 1.6 mm
Habitat: Nothing is mentioned by DE
JONG € COOMANS (1988) about the
habitat of this species. The shell pho-
tographed was collected in sandy sedi-
ments.
Distribution: ABC Islands: Aruba,
Curacao (DE JONG 飣 COOMANS, 1988).
Remarks: The closest species concho-
logically is Cyclostremiscus jeannae,
from which it can be distinguished by
the weaker dorsal ornamentation and
the smaller umbilicus. Cyclostremiscus
suppressus may be distinguished by its
lack of axial sculpture except very fine
growth lines.
Cyclostremiscus diminutus spec. nov. Rubio, Rolán € Pelorce (Figures 53A-G)
Type material: Holotype (Figs. 53A-D) in MNHN (24201) (ex CJP); one paratype from Pointe-á-
Pitre, Guadeloupe (FLMNH, 448611). Other paratypes: USNM (1155030, 1 s, Fig. 53D), AMNH (1
s, Fig. 53E), from Bocas Island, Panama (ex CHL); CHL (1 s, Puerto Rico).
Type locality: Guadeloupe.
Description: Shell (Figs. 53A-C)
solid, depressed, lenticular, with a
short spire. Protoconch (Fig. 53D)
smooth, bulbous, about 290 um in
diameter, with 1 Y whorls. Teleoconch
with a little more than one whorl.
Ornamentation produced by 5 spiral
cords which are distributed regularly
on the periphery and which are
marked by axial growth striae, also
evident near the umbilicus. At the
beginning of the teleoconch a spiral
cord may be seen on the dorsum but it
promptly fades. Aperture rounded,
100
columella and inner lip reflected
outward. Umbilicus wide and deep,
spiral cords absent from its border and
inner aspect.
Holotype is 0.75 mm in maximum
diameter and 0.32 mm in height.
Habitat: No information. All the
material was collected in drift sedi-
ments.
Distribution: Only known from the
type material: Guadeloupe, Puerto Rico
and Panama.
Remarks: Cyclostremiscus spec. nov.
may be distingished from the other
RUBIO £7 4£.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 52A-E. Cyclostremiscus vanbruggeni de Jong 82 Coomans, 1988. A-B: shells, 1.43, 1.28,
Praia da Itararé, Sáo Vicente, Sao Paulo (CHL); C: shell, 1.7 mm, Searborough, Tobago (CHL);
D: detail of the sculpture; E: protoconch.
Figuras 52A-E. Cyclostremiscus vanbruggeni de Jong Y Coomans, 1988. A-B: conchas, 1,43, 1,28,
Praia da ltararé, Sáo Vicente, Sáo Paulo (CHL); C: concha, 1,7 mm, Searborough, Tobago (CHL); D:
detalle de la escultura; E: protoconcha.
species of the complex bartschi-jeannae- periphery 5 spiral cords not particularly
vanbruggeni-suppresus, by the lack of prominent, delimiting a convex periph-
any axial sculpture, having at the ery.
101
Iberus, 29 (2), 2011
Figures 53A-G. Cyclostremiscus diminutus spec. nov. Rubio, Rolán 82 Pelorce. A-C: holotype, 0.75
mm, Guadeloupe (MNHN); D-E: paratypes, 0.95, 0.87 mm, Bocas Island, Panama (USNM and
AMNH, ex CHL)); F: paratype, 0,92 mm, Puerto Rico (CHL); G: protoconch.
Figuras 53A-G. Cyclostremiscus diminutus spec. nov. Rubio, Rolán «* Pelorce. A-C: holotipo, 0,75
mm, Guadeloupe (MNAN); D-E: paratipos, 0,95, 0,87 mm, Isla Bocas, Panamá (USNM and
AMNH, ex CHL)); F: paratipo, 0,92 mm, Puerto Rico (CHL); G: protoconcha.
102
RUBIO ET AZ.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Cyclostremiscus cubanus (Pilsbry £ Aguayo, 1933) (Figures 54A-G)
Circulus cubanus Pilsbry €: Aguayo, 1933. The Nautilus, 46: 120. pl. 6 figs. 6-6b. [Type locality:
Varadero, Matanzas, Cuba].
Cyclostrema cubanus (Pilsbry £ Aguayo, 1933).
Cyclostremiscus puntagordensis Weisbord, 1962: 141-142, pl. 13, figs. 10-12. [Type locality: Playa
Grande Formation (Maiquetía member) at W-23, north flank of Punta Gorda anticline,
Venezuela]. Fossil record.
Type material: Holotype in ANSP (160198). Represented in MOORE (1964: 230, fig. 26).
Other material examined: Belize: 2 s, 18 m, Deadman's Reef, Turneffe Island (CHL). Panama: 1 s,
1 mi N Punta San Blas, San Blas Islands (CHL). Honduras: 3 s, Calabash, Roatan Island (CHL).
Puerto Rico: 2 s, Holiday Inn, San Juan (CHL). Cuba: 4 s, Varadero Beach, Matanzas (MCZ 109345,
179783); 1 s, Archipelago de los Canarreos, 5 m (CFR); 1 s, Cayo Avalos, 8 m (MHNS); 1 s, Cayo
Diego Perez, beached (MHNS); 1 s, Faro Perez Diego, 10 m (MHNS); 2 s, Jibacoa, 3-6 m (MHNS);
5 s, Rancho Luna Beach, 10 m (MHNS); 15 s, Rancho Luna Beach, 20 m (MHNS); 4 s, Rancho Luna
Beach, 45 m. Florida, USA: 1 s, 30 m, 32 mi E St. Augustine, St. Johns (CHL). Bahamas: 1 s, 15 m,
French Bay, San Salvador (CHL); 4 s, 36 m, Mt Olympus Reef, 12 mi NNW Great Bahama Is (CHL);
4 s, 15 m, Samphire Cay, near Nassau (CHL); 21 s, 18 m, South Ridring Rocks, Cay Sal Bank (CHL);
1 s, 25 m, Marina Long Cay (CHL). Saint Kitts € Nevis: 6 s, 18 m, Monkey Shoals (CHL). Mar-
tinique: 1 s, coralline reefs of Point Borgnesse, 12 m, sand-muddy bottom (CJP). Trinidad and
Tobago: Tobago, 16 s, Horse Shoe Reef, 15 m, shells grit bottom (CJP). Aruba: 1 s, 15 m, off Palm
Beach (CHL). Bonaire: 1 s, 39 m, off Klein Bonaire (CHL). Virgin Islands: 5 s, 18 m, Deadman Chest
(CHL); 5 s, Magens Bay, N coast of St. Thomas (CHL); 1 s, Virgin Gorda (CHL).
Description: Shell (Figs. 54A-C) dep-
resed, whitish, robust, with spiral sculp-
ture. Protoconch (Fig. 54D) of almost 1 Y
whorls, about 270 um in diameter, and
with two clearly differentiated stages;
numerous strong irregular tubercles are
seen on its surface. There is no varix
evident at the transition between proto-
conch and teleoconch. The latter has
about 1 Y rapidly-expanding whorls.
Ornamentation formed by 6 strong spiral
cords: 3 on the periphery, keel-like,
having a slightly oblique profile; dorsally
one spiral cord extends between the
suture and the upper peripheral cord. On
the base there are two spiral cords: one
around the umbilicus and the other
between this and the basal peripheral
cord. On the spiral cords some thickening
can be seen at the points where the axial
growth striae cross. The entire surface of
the shell is covered by a microsculpture
(Figs. 54E-G) of fine spiral anastomosing,
threads. Aperture quadrangular, thick-
ened; outer lip with very fine dentition on
its inner margin. Columella and internal
lip reflected towards the umbilicus. Pari-
etal callus complete. Umbilicus wide and
deep. Dimensions: The holotype is 1 mm
in maximum diameter.
In our material there are some larger
shells (1.20 mm in maximum diameter).
Animal and radula unknown.
Habitat: The bathymetric range of this
species is large, having been recorded
between 0 and 140 m in depth. There is no
record of live-collected material, so its true
habitat is unknown.
Distribution: This species has a wide
Caribbean distribution. It has been
recorded from Varadero, Cuba (PILSBRY €
AGUAYO, 1933); from Florida, Cuba and the
Virgin Islands (MOORE, 1964); from Florida,
Garden Banks, Texas (ODÉ, 1988); from
Florida, St. Augustine (LEE, 2009); from
Abaco, Bahamas (REDFERN, 2001); and from
Panama (OLsson é£ MCGINTY, 1958). More
localities are added in the present work.
Remarks: We have pointed out some
shell features which were not mentioned in
the original description or considered erro-
neous in the original or subsequent descrip-
tions. With respect to the protoconch,
PILSBRY €: AGUAYO (1933) mentioned only
that it is smooth and small; the dimensions
of the holotype are erroneus because it was
reported to be 1 mm in height and 0.45 mm
in diameter. MOORE (1964) says that the
protoconch has 2 Y whorls when really it
has only 1 %; he also comments that the
103
Iberus, 29 (2), 2011
Figures 54A-G. Cyclostremiscus cubanus (Pilsbry 8 Aguayo, 1933). A-C: shells, 1.1, 1.2, 1.1 mm,
Rancho Luna Beach, Cienfuegos, Cuba (MHNS); J-K: protoconch; E-G: details of the
microsculpture.
Figuras 54A-G. Cyclostremiscus cubanus (Pilsbry € Aguayo, 1933). A-C: conchas, 1,1, 1,2, L,1 mm,
Playa Rancho Luna, Cienfuegos, Cuba (MHNS); J-K: protoconcha; E-G: detalles de la microescultura.
microsculpture covers all the shell, but it is as a fossil from the Plio-Pleistocene of
absent from the umbilicus. Venezuela by WEISBORD (1962), but the only
C. puntagordensis, a species placed in shell known, the hololotype, has slighty
synonymy by MOORE (1964) was described larger dimensions (1.4 mm).
104
RUBIO £7 4L£.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Cyclostremiscus euglyptus Aguayo € Borro, 1946 (Figures 55A-D)
Cyclostremiscus euglyptus Aguayo € Borro, 1946. Rev. Sdad. Malac. “Carlos de la Torre,” 4(1):
9-10, figs. 4-6. [Type locality: Matanzas, Cuba].
Type material: Holotype represented in AGUAYO éz BORRO (1946, figs. 4-6), in MPH (11877). Described
as a fossil of the Upper Tertiary found in the formation “Yumurí,” Upper Miocene of Cuba.
Other material examined: Cuba: 1 s, Cayo Avalos, 8 m (MHNS); 1 s, Cayo Perez Diego, 5 m(MHNS);
1 s, Jibacoa, 3-6 m (MHNS); 16 s, Cienfuegos Bay, 20-30 m (CFG); 2 s, Rancho Luna Beach, 12 m
(CFG); 47 s, Rancho Luna Beach, 20 m (MHNS); 1 s, Rancho Luna Beach, 35 m (CFG); 14 s, Rancho
Luna Beach, 45 m (CFG); 5 s, Faro los Colorados, 56 m (CFG); 2 s, Punta Tamarindo, 25 m (CFG).
Description: Shell (Figs. 55A-C). The
original description of AGUAYO éz
BORRO (1946: 9-10) is as follows:
“Concha pequeña, discoidal, de espira
muy poco elevada, ampliamente umbili-
cada. Con 1 4 vueltas embrionarias lisas
y 2 Y postnucleares fuertemente escul-
pidas. Escultura espiral formada por
dos quillas periféricas que limitan el
contorno de la última vuelta y otra basal
que bordea el ombligo. Finas líneas espi-
rales se observan entre las expresadas
quillas. Escultura axial formada por
unas 40 costillas radiales en la última
vuelta, que forman nódulos o incisiones
al cruzar los cordones espirales. Perife-
ria de la última vuelta con los lados casi
paralelos y formando ángulos marcados
con el eje de la concha. Ombligo amplio,
dejando ver las vueltas nucleares. Pared
del ombligo con escultura radial, pero
sin líneas espirales. Abertura cuadran-
gular, con el lado columelar muy arque-
ado; el resto poligonal por la articula-
ción de las quillas espirales”.
Protoconch (Fig. 55D) with a diame-
ter of about 190 um, smooth except at
the earliest, embryonic, part where irreg-
ular short lines can be seen. The separa-
tion from the teleoconch is very evident.
Dimensions: the holotype is 1.05 mm
in diameter and 0.56 mm in height. The
single paratype, from the same lot, mea-
sured 1 mm in diameter and 0.60 mm in
height. The dimensions of our material
are similar to those of the holotype.
Habitat: This species is relatively
common in Cuba. Its bathymetric distri-
bution is between 5 and 60 m; most of
the shells of our material were collected
between 20 and 56 m.
Distribution: Only known from
Cuba.
Remarks: There is no other species in
the genus with this shell morphology,
thus its identification is easy. Being a
species probably “endemic” to the
island of Cuba, it has been overlooked
in published works and electronic data-
bases.
Cyclostremiscus microstriatus spec. nov. Rubio, Rolán € Lee (Figures 56A-H)
Vitrinorbis sp. Lee, 2009: 69, n* 333.
Type material: Holotype (Fig. 56A) in MNCN (15.05/55055). Paratypes in the following, collections:
MNHN (24395, 1 s, Fig. 56B), MHNS (100549, 1 s, Fig. 56C) from the type locality (all ex CFG). Other
paratypes: FLMNH (448609, 1 s, Fig. 48D, trawled 30 m, 35 mi E Mayport, Duval Co., Fla.; 3 s, trawled
30 m, 35 mi E St. Augustine, St. Johns Co., Fla. (Fig. 56E) (one in USNM 1155029, other in ANSP and
a third in CHL).
Type locality: Rancho Luna Beach, Cienfuegos, Cuba.
Etymology: The specific name refers to the minute striation in the interspaces between cords.
Description: Shell (Figs. 56A-E) of (Fig. 56F) with a fine granulation barely
very small size, planispiral, robust,
whitish, solid, not shiny. Protoconch
observable; 1 14 whorls and about 240
um in diameter; there is no thick rib at
105
Iberus, 29 (2), 2011
———— 50 um
Figures S5A-D. Cyclostremiscus euglyptus Aguayo 82 Borro, 1946. A-C: shells, 1.0, 0.95, 0.8 mm,
Cienfuegos, Cuba; D: protoconch.
Figures 55A-D. Cyclostremiscus euglyptus Aguayo d* Borro, 1946. A-C: conchas, 1,0, 0,95, 0,8 mm,
Cienfuegos, Cuba; D: protoconcha.
the junction with the teleoconch.
Teleoconch with about 1 % whorls. The
entire shell is covered by wide spiral
cords of almost equal size. The inter-
spaces between cords are covered by
fine axial incisions (Figs. 56G-H). On
the last whorl there are between 20
and 23 cords; 7-8 on the dorsum, 8 on
the periphery and 6-8 on the base. On
the base, there is a space without cords
from the middle of the last whorl to
the umbilical border. Umbilicus
smaller than those in congeneric
species, the previous whorls can be
seen on its interior. Aperture proso-
cline, rounded, thickened, its external
margin forms a characterístic point in
the area where the 7th-9th cords, the
three most prominent ones, are placed.
The columella as well as the internal
lip and the upper part of the external
lip are reflected outward. The first
peripheral cord, as well as the dorsum
and the last peripheral cord near the
106
base are visible from above, the base
being sligtly concave.
Dimensions: The holotype is 1.3 mm
in maximum diameter and 0.40 mm in
height.
Animal and radula unknown.
Distribution: Known only from
Cienfuegos, Cuba and Florida, USA.
Discussion: Cyclostremiscus micros-
triatus spec. nov., is a very characteristic
species; its form is almost planispiral, its
ornamentation is formed by subequal
spiral cords and very fine axial incisions
in the interspaces, as well as the prolon-
gation which forms the border of the
external lip.
A similar species was recorded by
Lyons (1989) as Vitrinorbis sp. It is
much more flattened in profile and is
markedly angulate at the level of the
lowest peripheral keel. LEE (2009) sug-
gested that Circulus gunteri (Mansfield,
1930), described from the Miocene of
Florida, was ancestral to Cyclostremis-
RUBIO ET 4L.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 56A-H. Cyclostremiscus microstriatus spec. nov. Rubio, Rolán 82 Lee. A: holotype, 1.3 mm
(MNCN); B: paratype, 1.1 mm (MNHN); C: paratype, 1.0 mm (MHNS), Rancho Luna Beach,
Cienfuegos, Cuba; D: paratype, 1.3, Duval Co., Florida (FLMNH); E: paratype, 1.2 mm, E St.
Angustin, St. Johns Co., Florida (USNM); EF: protoconch; G-H: microsculpture.
Figures 56A-H. Cyclostremiscus microstriatus spec. nov. Rubio, Rolán e Lee. A: holotipo, 1,3 mm
(MNCN); B: paratipo, 1,1 mm (MNAN); C: paratipo, 1,0 mm (MANS), Playa Rancho Luna, Cien-
fuegos, Cuba; D: paratipo, 1,3, Duval Co., Florida (FLMNAH); E: paratipo, 1,2 mm, E St. Angustin,
St. Johns Co., Florida (USNM); E: protoconcha; G-H: microescultura.
107
Iberus, 29 (2), 2011
cus microstriatus spec. nov. (his Vitri-
norbis species [no. 333]); the fossil,
while having the same flat spire, differs
in having the body whorl totally
covered by cords and lacking the labral
projection.
Circulus quadricristatus (Aguayo,
1949) is also similar to C. microstriatus
spec. nov., but it only presents 4 wide
cords on the periphery and lacks the
labral projection.
LeE (2009) also suggested that the
Panamic Cyclostremiscus salvatierrensis
Hertz, Myers € Gemmill, 1992 was
cognate with C. microstriatus spec. nov.
(his Vitrinorbis species [no. 333]).
Genus Cochliolep1s Stimpson, 1858
Cochliolepis Stimpson, 1858. Proc. Boston Soc. Nat. Hist., VI: 308.
Type species: Cochliolepis parasiticus [sic] Stimpson, 1858, by monotypy. Recent, Caribbean.
Diagnosis: MOORE (1964: 168)
“Thin-shelled, strongly depressed
and openly umbilicate. Apex flat or
sunken, surface smooth except for
growth lines or occasionally spiral
striations. Aperture obligue, peris-
tome very briefly in contact with
preceding whorl. Adult whorls
rapidly increase 11 size. sojt plants
described as bright red, with two
long pallial tentacles, and with a
supplementary gill projecting from
the right side of the aperture. Oper-
culum thin and flexible”.
C. parasitica was collected alive
below the “elytra” of the giant worm
Polidontes lupinus. C. parasitica is a
commensal and not a parasite. lt
apparently feeds on the fine particu-
late organic material drawn into the
tube by the worm's respiratory and
feeding current. It possibly performs
a cleaning function.
Remarks: MOORE (1964) com-
mented on the distribution of the
genus: “the genus appears to be con-
fined to the West Indian region. C.
parasitica is found on the Carolina
coast, C. nautiliformis and C. striata
live on the Gulf of Mexico and C.
adamsii 1s known from Guade-
¡Oupese
However, we have found a very
different situation: First at all, we
have tried to make the specific dif-
ferentiation basing not only on the
characters of the teleoconch but also
the protoconch. Fortunately we were
able to compare shells from very dif-
ferent Caribbean localities confirm-
ing the morphology of the proto-
conch of Cochliolepis parasitica
shown for the first time by REDFERN
(2001). The sculpture is very charac-
teristic, and it allows the distinction
from congeneric species even as
juveniles.
As for Cochliolepis nautiliformis
(Holmes, 1859), in spite of the
opinion of some authors who con-
sider tasas yanonymtot e:
parasitica, we could not confirm this
due to the difficulty of observing the
protoconch of that species; thus we
prefer to present it provisionally as a
separate taxon.
Cochliolepis adamsii (P. Fischer, 1857) (Figures 57A-D)
Adeorbis adamsii P. Fischer, 1857. Journal de Conchyliologie, 6: 287, pl. 10, fig. 11. [Type locality:
Guadeloupel.
Type material: In MNHN. Not examined.
Other material examined: Bahamas: 1 s, beach near Current Cut, Current Eleuthera (CHL); 1 s, 36
m, Olympus Reef, 12 mi NNW West End, Grand Bahama Island (CHL). Florida, USA: 1 s, 1 m,
Peanut Island, Palm Beach Co. (CHL).
108
RUBIO ET ALz.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Description: This is the original
description of P. FISCHER (1857: 287):
“Testa translucida, corneo-alba, nitida,
complanata, suborbiculari, umbilicata;
supra minutissimé et concentrice striata;
subtus laevicula; anfractibus 3 Y rapide
accrescentes, ultimo compressiusculo,
non carinato; aperture subovata, parum
transversa; margine dextro tenul,
fragil”. This description must be suple-
mented with some information obtained
from the materal presently studied:
Shell (Figs. 57A-D) depressed,
fragile, of whitish-tan color, comprised
of 3 Y rapidly-expanding whorls. Proto-
conch (Fig. 57C) about 390 um in diame-
ter with a nucleus of about 160 um. Fol-
lowing the nucleus a prominent spiral
sculpture appears, being formed by four
discrete cordlets which terminate at the
beginning of the teleoconch. The teleo-
conch has a fine spiral striation which is
crossed by numerous distinct growth
lines, even into the widely-open umbili-
cus. Aperture suboval, with a fine and
fragile border. No columellar or parietal
callus.
Dimensions: Holotype 6.5 mm in
maximum diameter and 2.0 mm in
height.
Our shells are 7.1 and 6.2 mm in
diameter.
Animal and radula unknown.
Habitat: This species, as well as its
congeners, prefers shallow water in
coastal bays. No bathymetric infor-
mation was provided in the original
description. Our shell came from a
sandy and rocky bottom at 2 m deep.
Distribution: Recorded from USA:
Florida: Florida Keys (MaAurtY, 1922;
MOORE, 1964) and Guadeloupe
(FISCHER, 1857).
Remarks: The species was previ-
ously included in the genus
Macromphalina.
MOORE (1964) mentioned that
during his stay in Paris in 1963, he
examined the type of Adeorbis
adamsii P. Fischer, 1857, concluding
that “it is a Cochliolepis very similar
to C. striata Dall, 1889, but more
inflated”.
The four species in the West
Indian region may be separated into
two groups: C. parasitica and C. nau-
tiliformis are relatively small, smooth
and shiny; C. striata and C. adamsii
are relatively larger, spirally striated
and have a light tan coloration. Con-
trary to the observations of MOORE
(1964: 174), the base presents the
same ornamentation as the rest of the
shell.
Cochliolepis holmesii (Dall, 1889) (Figures 58A-F)
Cochliolepis parasiticus [sic] Holmes, 1859. Post-Pleiocene Fossils of South Carolina: 93-94, pl.
14, figs. 9, 9a, 9b. [Type locality: South Carolina, Post Pliocene] non Cochliolepis parasiticus
[sic] Stimpson, 1858.
Vitrinella holmesi Dall, 1889a. Bulletin of the Museum of Comparative Zoology 18: 360, 392.
Type material: Deposited in MCZ. Not examined.
Material examined: Florida, USA: 5 s, APAC Pit, Sarasota, Plio-Pleistocene (CHL). Mexico: 2 s,
Puerto Morelos, Yucatan, 10-16 m (MHNS).
Description: From PiLsBRY (1953:
433-434): “The thin shell is biconvex;
the periphery, below the middle of the
whorl, is quite narrowly rounded, the
whorl being more convex above than
below it. The spire is nearly level but
the apex is visible in a face view. The
suture is deeply impressed, the whorls
convex. The umbilicus is very broad
and open, with a deep suture, the
umbilical side of the whorls being
strongly convex. The weak wrinkles of
growth become stronger as they
approach the lip, and are often rather
fine and close on the base of the last
third of the body-whorl. A microscopic,
close, spiral striation covers the last
whorl in good specimens, being weaker
109
Iberus, 29 (2), 2011
Figures 57A-D. Cochliolepis adamsii (P. Fischer, 1857). A-B; shells, 7.1, 6.2 mm, Bahamas (CHL);
C: protoconch; D: microsculpture.
Figuras 57A-D. Cochliolepis adamsii (P Fischer, 1857). A-B; conchas, 7,1, 6,2 mm, Bahamas
(CHL); C: protoconcha; D: microescultura.
at the base. The aperture is oblique.
Peristome is thin, the columellar margin
concave below, then in a straight line to
the insertion just below the periphery. It
110
is thin throughout. The parietal callus is
very short and thin”.
We add: The shells (Figs. 58A-C)
examined have the protoconch (Figs.
RUBIO ET 4L.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 58A-E. Cochliolepis holmesii (Dall, 1889). A-C: shells, 3.66, 3.0, 2.96 mm, Plio-Pleistocene
of Sarasota, Florida (CHL); D: microsculpture; E-F: protoconchs.
Figuras 58A-E Cochliolepis holmesii (Dal), 1889). A-C: conchas, 3,66, 3,0, 2,96 mm, Plio-Pleisto-
ceno de Sarasota, Florida (CHL); D: microescultura; E-F: protoconchas.
58E-F) bulbous, about 470 um, 1 %
whorls, and with a very marked suture.
Two stages may be easily distin-
guished: the embryonic shell is % of
whorl, measuring about 170 um in
diameter and is covered by a fine gran-
ulation, more evident in the areas close
to the suture. The second stage has 5-6
fine spiral lines and minute growth
marks.
Dal]
Iberus, 29 (2), 2011
The teleoconch is completely
covered by growth marks and spiral
striae; on the dorsum of the shell the
collabral growth marks are more
robust, especially at the later stages of
growth, while on the base they are finer
and denser on the last third of the
whorl. Periphery subangular.
Maximum reported size: 2.4 mm
Habitat: Depth: 2 to 11 m.
Distribution: USA: Florida: East
Florida (Lyons, 1989); Mexico:
Cozumel (MOORE, 1973).
Remarks: The name Vitrinella
holmesii was introduced by Dall
because Cochliolepis parasiticus [sic]
Stimpson was misidentified by HOLMES
(1859: 93-94, pl. 14, figs. 9, 9a, 9b); it
was, in fact, a new species.
The type of this species appears to
be lost; it was described and figured by
HOLMES (1859) but no topotypic speci-
mens have been collected. Dall's notes
(1892) mention a specimen in the
USNM (114368), which he identified
with the Post-Pliocene species of
HOLMES (1859). DALL (1889a) used the
spellins Holmes tonic Uan
Holniestiitcon po 392 DA is 92)
acting as First Reviser, employed the
latter spelling, thus establishing the
correct original spelling.
C. holmesíii was described as a
fossil of the Post-Pleiocene of South
Carolina (HoLMEs, 1859; DALL, 1889a);
from the Miocene of Duplin County,
North Carolina (DaALL, 1892); from the
St. Petersburg Pliocene, the Pliocene in
the Waccamaw formation of North Car-
olina, and the Miocene of the Natural
Well, Duplin Co., North Carolina
(PILSBRY, 1953).
Cochliolepis nautiliformis (Holmes, 1859) (Figures 59A-C)
Adeorbis nautiliformis Holmes, 1859: 93, pl. 14, figs. 8-8b. [Type locality: Cainhoy, Wando River,
South Carolina].
Type material: Unknown.
Other material examined: Florida, USA: 1 sp, Tarpon Springs, Pinellas Co., S end of the parking lot
Howard Park, (CHL); 1 s, Gulfport, Pinellas Co. (CHL).
Remarks: In discussing figured speci-
mens of Cochliolepis nautiliformis
(Holmes) from the St. Petersburg Plio-
Pleistocene, PILSBRY (1953) in OLSSON éz
HARBISON (1953) commented: “DALL
(1889: 360) stated that A. nautiliformis
Holmes is identical with C. parasitica
Stimpson, and this synonymy has been
accepted by some later authors without
verification. There are several specific dif-
ferences, the most conspicuous being the
much more extensive envelopment of the
spire in C. nautiliformis, reducing the
visible spiral, the summit being left as a
slight depression. The apical whorl is
wider and fully exposed in C. parasitica”.
We have insufficient material to for-
mulate an opinion about this taxon, there-
fore we present figures of what we per-
ceive as this species. The problem can
only be resolved with more material,
including live-collected specimens.
Cochliolepis parasitica Stimpson, 1858 (Figures 60A-G, 61A-H, 62A-F)
Cochliolepis parasiticus [sic] Stimpson, 1858: 307-309, text-fig. [Type locality: Charleston Harbor,
South Carolina].
Nemafera compressa Kurtz, 1960: 8. Not figured. [Type locality: Fort Johnson, South Carolina].
Type material: Two syntypes in USNM (95079) (corresponding to two specimens deposited with
n” 87142, given by Stimpson to Isaac Lea). Examined in photographs (Figures 60A-G). The larger
one is here designated the lectotype.
112
RUBIO ET 42.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 59A-C. Cochliolepis nautiliformis (Holmes, 1859). A-B: shell, 5.0 mm, Gulfport, Pinellas
Co., Florida (CHL); C: protoconch.
Figuras 59A-C. Cochliolepis nautiliformis (Holmes, 1859). A-B: concha, 5,0 mm, Gulfport, Pinellas
Co., Florida (CHL); C: protoconcha.
Other material examined: Bermuda: about 300 s, Gibbons Bay (CHL). Bahamas: 1 s, Channel, Chub
Cay (CHL); 1 s, W end Grand Bahama (CHL); 3 s, beach, 300 m N Current Cut, Eleuthera (CHL);
2 s, 15 m, NW Nassau (CHL); 85 s and some j, from Abaco, 10-23 m (CCR). Florida, USA: 1 s, 36-
90 m, off Dry Tortugas (CHL); 2 s, beach, 500 m W Flamingo Visitors Center, Monroe Co (CHL).
Mexico: 3 s, Puerto Morelos, Yucatan, 8-18 m (MHNS). Guadeloupe: 1 s, north Olive Bay, 2 m,
among rocks (CJP). Cuba: 5 s, Maria la Gorda, 20 m (MHNS) 3 s, Playa Girón, 2 m (MHNS) 4 s,
Cayo Carenas, Cienfuegos Bay, 5 m. Turks éz Caicos: 13 s, 18 m, French Cay (CHL). Puerto Rico: 1
s, beach, Holiday Inn, San Juan (CHL). St. Kitts and Nevis: 1 s, 14 m, The Garden, Nevis (CHL).
Aruba: 1 s, 15 m, off Palm Beach (CHL). Grand Cayman Island: 1 s, beach grit, 100 m S. Rum Pt.,
Cayman Kai (CHL).
Description: Shell (Figs. 60A-D, 614,
62A-C): See STIMPSON (1858). The best
description is in MOORE (1972: 103):
“The smooth glassy shell is strongly
depressed, flattened on top, and broad ly
umbilicate. The protoconch is slightly
immersed in the teleoconch and consists
of about 1 % whorls. The teleoconch
consists of slightly more than two
whorls in a large specimen 4.02 mm in
diameter. The first adult whorl has a
thin callus of shell up to, or sometimes
covering part of, the protoconch; the
suture is carried out toward the periph-
ery on the last half whorl. The suture
thus follows a nearly crescent-shaped
curve from the protoconch to the inner
corner of the aperture. There is a thin
LUS
Iberus, 29 (2), 2011
Figures 60A-G. Cochliolepis parasitica Stimpson, 1858. A-B: lectotype, 3.4 mm (USNM 87142);
C-D: shell of the same lot, 3.4 mm (USNM); E: detail of the operculum; F-G: protoconch of the
both specimens. (SEMs by Yolanda Villacampa, USNM).
Figuras G60A-G. Cochliolepis parasitica Stimpson, 1858. A-B: lectotipo, 3,4 mm (USNM 87142); C-
D: concha del mismo lote, 3,4 mm (USNM); E: detalle del opérculo; E-G: protoconcha de ambos ejem-
plares. (fotografías al MEB de Yolanda Villacampa, USNM).
114
RUBIO ET 4L.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
callus on the parietal wall, and the col-
umella is thickened where it joins the
precedieron ines taplerture1s
oblique, for the upper part the peris-
tome is extended well beyond the
remainder of the outer lip. The aper-
ture is wider than high, with a ratio of
about atole Outer lp 1s EIN,
smooth, and with no thickening to
indicate maturity. Most adult speci-
mens have one or more strong growth
lines, which give a nautiloid appear-
ance mole shell The umbilicus ts
widely open and penetrates to the pro-
toconch. Height-to-breadth ratio for the
teleoconch 1s about 1.0 to 3.5. A speci-
men 4.02 mm in diameter was 1.23 mm
high. Maximun diameter is about 4.5
Curiously, until the work of
REDFERN (2001) the protoconch of
Cochliolepis parasitica had never been
described, probably due to the destruc-
tion of the holotype and because puta-
tive type material now in USNM
(labelled “syntype”, possible
paratypes), though juveniles, have the
protoconch eroded or concealed in
callus. In our opinion the description of
the protoconch of Cochliolepis parasit-
ica is very important, because it is nec-
essary for the correct differentiation
from otherwise quite similar species in
the genus.
According REDFERN'S (2001)
description: “The protoconch of adult
shells is usually abraded, showing only
traces of the distinctive sculpture seen
on a larval shell. The embryonic whorl
is smooth and translucent, but the sub-
sequent whorl is more opaque, with an
irregular pattern of raised zigzag spiral
imeads o Eachioj ese produces
random off-shoots that project
obliquely towards the adjacent thread,
and this sculpture tends to become
more regular towards the periphery”.
We were able to compare the proto-
conchs from the Bahamas with those
from Bermuda and Turks € Caicos, and
we conclude that, despite small differ-
ences among them, all fall within
Redfern's description (Figures 60F-G,
61B-H, 62D-F).
Maximum reported size: 4.2 mm.
Lectotype in USNM 3.4 mm. The other
specimen in the lot is of a similar size.
Size of a specimen from Playa Giron,
Cuba: shell 3.05 mm diameter; proto-
conch 570 um in diameter.
Size specimen from Puerto Morelos,
Yucatan: shell 2.63 mm diameter; proto-
conch 463 um in diameter.
The animal has a pair of cephalic
tentacles, two more pallial tentacles,
which project from the upper angle of
the aperture, a medium-sized slipper-
like foot, a multispiral operculum, a
large and well developed ctenidium and
an elongate, narrow and curved penis in
the male (MOORE, 1972).
Habitat: Depth: 0 to 48 m (living at
0.3 to 0.6 m). MOORE (1972) concludes
that C. parasitica is not a parasite of the
annelid Acoetes lupina Stimpson, but a
herbivore which lives as a dependent
symbiont. Since the snails are often
found on the worm itself, they possibly
perform a cleaning function.
Distribution: Cochliolepis parasitica
Stimpson was originally found in the
harbor of Charleston, South Carolina,
living under scales of the annelid
Acoetes lupina. lt was reported by
HOLMES (1860) from the Post-Pliocene at
Simmons Place, Wando River, South
Carolina, but this was an erroneous
identification; the species figured by
him is not that of Stimpson, and it was
renamed Vitrinella holmesii Dall.
Its actual known range is: USA:
North Carolina, South Carolina, Florida:
West Florida, Florida Keys, Texas;
Mexico: Campeche State, Yucatan State,
Quintana Roo; Colombia; Bermuda;
Puerto Rico. Recorded from Charleston
Harbor, South Carolina (STIMPSON,
1858); from (DaLL, 1892); from Cainhoy,
Wando River, South Carolina (HOLMES,
1859); from Fort Johson, South Carolina
(KURTZ, 1860); from Beaufort, North
Carolina (HARTMAN, 1945); from Grand
Cayman (ABBOTT, 1958) but MOORE
(1972) considers that Abbott's record
corresponds to another different
species); from the west coasts of Florida
and Aransas Bay, Texas (MOORE, 1964);
from Aransas Bay, Texas to Beaufort,
15
Iberus, 29 (2), 2011
Figures 61A-H. Cochliolepis parasitica Stimpson, 1858. A: juvenile shell, 1.36 mm, Bahamas; B:
protoconch, Bahamas; C-H: protoconchs, Bermuda (CHL).
Figuras 61A-H. Cochliolepis parasitica Stimpson, 1858. A: concha juvenil, 1,36 mm, Bahamas; B:
protoconcha, Bahamas; C-H: protoconchas, Bermuda (CHL).
North Carolina (MOORE, 1972); from
North Carolina (PORTER, 1974); from
Campeche State, Yucatan State and
Quintana Roo, Mexico (ODÉ, 1988);
from Colombia (Díaz MERLANO éz
116
PUYANA HEGEDUS (1990); from Florida
(Lyons, 1998); from Abaco, Bahamas
(REDFERN, 2002) and from St. Augustine
(Leg, 2009); from Cuba in the present
work.
RUBIO ET AL.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 62A-F. Cochliolepis parasitica Simpson, 1858. A-B: juvenile shell, 1.6 mm, Guadeloupe
(CJP); C: shell, 2.1 mm, Maria la Gorda, Cuba; D-F: protoconchs; D: from Turks 8 Caicos; E:
Maria la Gorda; F: from Guadeloupe.
Figuras 62A-E Cochliolepis parasitica Stimpson, 1858. A-B: concha juvenil, 1,6 mm, Guadeloupe
(C]P); C: concha, 2,1 mm, Maria la Gorda, Cuba; D-F: protoconchas; D: de Turks * Caicos; E:
Maria la Gorda; F: de Guadeloupe.
C. parasitica has been recorded as
fossil (as Adeorbis nautiliformis; a dis-
puted synonym) from the post-Pliocene of
South Carolina at the Wando River
(HOLMES, 1860); from the Plio-Pleistocene
of the Caloosahatchie beds, Florida (DALL,
1892) and from the Plio-Pleistocene of St.
Petersburg, Florida (PILSBRY, 1953).
117
Iberus, 29 (2), 2011
Remarks: The type specimen of
C. parasitica was lost in the
Chicago fire of 1871, but two speci-
mens given by Stimpson to Isaac
Leartaretnow nte National
Museum, n” 95079. The larger one,
diameter 3.4 mm, is designated the
lectotype.
Cochliolepis striata Dall, 1889 (Figures 63A-E)
Cochliolepis parasttica auct. non Stimpson, 1858.
Cochliolepis striata Dall, 1889. Bull. Mus. Comp. Zool. Harvard, 18: 360. [Type locality: Egmont
Key, Tampa Bay, Florida].
Type material: In USNM. Not examined.
Other material examined: Mexico: 1 s, Puerto Morelos, Yucatan, 6-18 m (MHNS). Florida, USA: 4
s, Sanibel, Lighthouse Beach (CHL); 1 s, dredged 4.5-7 m, Seahorse Key, Cedar Keys, (CHL); 1 s,
APAC Pit, Sarasota Pit, Plio-Pleistocene (CHL).
Description: Protoconch (Fig. 63D-
E) white in color, smooth, composed of
2 whorls (frequently not fully exposed,
partially or totally covered by the sub-
sequent whorls), and for this reason its
diameter cannot be accurately mea-
sured. The shell (Figs. 63A-C) is light
honey in color, shows a uniform sculp-
ture on its entire surface, including the
base and the inner umbilical area; this
is formed by numerous spiral cordlets
with axial microstriae in the inter-
spaces. There are also sinous growth
lines. The spiral cords with microstriae
are predominant on the dorsum of the
shell, while on the base and in the
umbilicus the growth lines are predom-
inant.
Dimensions: Holotype 6.5 mm in
maximum diameter and 2.0 mm in
height.
Our largest shells measure 7.8 mm
in diameter.
Animal and radula are unknown.
Distribution: This species has been
recorded from Beaufort, North Carolina
(Jacor, 1921); from Florida (JOHNSON,
1934); Virgin Islands (NOwELL-USTICKE,
1959); from North Carolina, Florida:
East Florida, West Florida and Texas
(MOORE, 1964, EMERSON éz JACOBSON
(1976); from southeastern Panama
(RADWIN, 1969); from Texas (ANDREWS,
1977); from northwest Gulf of Mexico
(ODÉ, 1969, 1988); from Abaco,
Bahamas (REDFERN, 2001); also, in the
present work, from Mexico: Yucatan
and Cuba: Cienfuegos.
Habitat: MOORE (1964) indicated
that the species seems to prefer coastal
bays with shallow waters. It is distrib-
uted in the intertidal area between 0
and 27 m. Various authors who have
found it reported a depth between 0
and 50 m, but these records were based
only on empty shells. Nothing is
known of the soft parts. MOORE (1964:
41) considers C. striata an endemic
species from the Gulf of Mexico, with
strictly limited distribution. Our record
indicates that the distribution is wider
than expected.
Remarks: The spiral cords and the
axial microstriae in the interspaces dis-
tinguish this species from all con-
geners. Contrary to MOORE (1964: 174)
the shell has the same sculpture on the
base as on the rest of the shell.
Cochliolepis planispiralis spec. nov. (Figures 64A-E)
Type material: Holotype (Fig. 64A) in MNCN (15.05 /55054); paratypes: MHNS (100550, 1 s, Fig.
64B), MNHN (24396, 1 s, Fig. 64C), IES (1 s), CFG (1 s), MCZ (1 s), USNM (1155034, 1 s), all from
the type locality.
Type locality: 15-20 m, Puerto Morelos, Yucatan, Mexico.
Etymology: The specific name refers the planispiral development of the shell spire.
118
RUBIO £7 412.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 63A-E. Cochliolepis striata Dall, 1889. A-C: shells, 6.2, 7.8, 7.8 mm, Sanibel Light House
Beach, Florida; D-E: protoconchs.
Figures 63A-E. Cochliolepis striata Dall, 1889. A-C: conchas, 6,2, 7,8, 7,8 mm, Sanibel Light
House Beach, Florida; D-E: protoconchas.
Iberus, 29 (2), 2011
Description: Shell (Figs. 64A-C)
depressed, planispiral, the spire formed
by about 2 Y whorls. The protoconch
(Fig. 64D-E) has one whorl or a little
more, measuring about 480 um in diam-
eter. The embryonic whorl is smooth,
but the subsequent whorl has an irregu-
lar pattern of raised zigzag spiral
threads. Each of these produces random
off-shoots that project obliquely towards
the adjacent thread, and this sculpture
tends to become more regular towards
the periphery. Varix at the transition to
the teleoconch not very thickened.
Teleoconch with two whorls and
rounded periphery. Ornamentation con-
sists of fine spiral grooves, which are
best seen in the first whorl of the spire
and at the periphery, and marked
growth lines, some of them very sharp,
spread over the dorsum and base of the
shell. The umbilicus is widely open, and
on its apex the protoconch can be seen.
Aperture ovoid, parietal area not
callous, columella straight, reflected
outward, with slight thickening of the
umbilical wall; no progresive ocelusion
of the umbilicus is observed.
Dimensions: The holotype is 2.63
mm in maximum diameter; one
paratype (MCZ) reachs 2.8 mm.
Habitat: The shells were collected in
sandy bottom.
Distribution: Only known from the
type locality.
Remarks: The dorsal and basal orna-
mentation are very constant. Cochli-
olepis planispiralis spec. nov. shows
great similarities to C. parasitica in pro-
toconch ornamentation and teleoconch
spiral grooves, but it is different because
the periphery is regularly rounded and
not in a low position; also in the devel-
opment of the spire, and shape of the
periphery, dorsal border of the aperture
and columella (see Fig. 64).
C. holmesti, C. patricioi and C. dif-
ferens are different by the different
sculpture of the protoconch.
C. striata and C. adamsi lack the
spiral cordlets in the protoconch, having
a stronger striation on the teleoconch.
Cochliolepis patricioi spec. nov. Rubio, Rolán € Lee (Figures 65A-G)
Type material: Holotype (1 s, Figs. 65A-B) in FLMNH (448608); paratypes: USNM (1155035, 1 s),
ANSP (1 s), CHL (1 s) from St. Augustine, St. Johns (Figs. 65C-E) (all ex CHL).
Type locality: 60 m, off Sombrero Light, Key Vaca, Monroe Co. Florida, USA.
Etymology: The species is named for Patricio Calviño, good friend of the first author.
Description: Shell (Figs. 65A-E)
depressed, almost planispiral, com-
posed of 3 Y whorls. The protoconch
(Fig. 65F-G) has 1 whorl measuring
about 340 um in diameter, apparently
smooth although very small granules
can be seen all over, mainly on the
areas close to the suture. Varix at the
transition with the teleoconch not
thickened. Teleoconch with two
whorls; the first possessing 35-40
somewhat robust axial ribs. At the
beginning of the second whorl the ribs
begin to rapidly fade and soon change
into simple, but marked, growth lines.
This ornamentation, although most
easily seen dorsally, can be observed
on the periphery as well as on the
base. Umbilicus wide and deep. Aper-
120
ture ovoid, parietal area not callous,
columella reflected outward, without
thickening of the umbilical wall or
progressive occlusion of the umbili-
cus.
Dimensions: 2.0 mm in maximum
diameter.
Habitat: Collected in sandy sedi-
ment at 60 m.
Distribution: Only known from the
type locality and off St. Augustine,
Florida.
Remarks: The dorsal ornamenta-
tion is very variable. Some shells lack
the axial ribbing so evident on the
first whorl of the teleoconch, showing
only strong growth lines.
Cochliolepis patricioi spec. nov.
can be distingished from:
RUBIO £7 ALz.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 64A-E. Cochliolepis planispiralis spec. nov. A: holotype, 2.63 mm, Puerto Morelos, Yucatan
(MNCN); B-C: paratypes, 2.4 mm (MNHN), 2.2 mm (MHNS); D-E: protoconchs.
Figuras 64A-E. Cochliolepis planispiralis spec. nov. A: holotipo, 2,63 mm, Puerto Morelos, Yucatan
(MNCN); B-C: paratipos, 2,4 mm (MNAN), 2,2 mm (MANS); D-E: protoconchas.
C. parasitica, which has consistent C. holmesii, which also lacks this
sculpture in the protoconch and lacks ribbing and has the periphery lower
ribs on the first whorl of the teleo- and subangulate, rather than rounded
conch. and at mid-whorl.
12
Iberus, 29 (2), 2011
Figures 65A-G. Cochliolepis patricioi spec. nov. Rubio, Rolán 82 Lee. A-B: holotype, 2.0 mm,
Monroe Co. Florida (FLMNH); C-E: paratypes: 1.8, 1.9, 1.7 mm, St. Augustine, Florida
(USNM, ANSP and CHL, respectively); F-G: protoconchs: F: from the holotype; G: from the
paratype of fig. C.
Figuras 65A-G. Cochliolepis patricioi spec. nov. Rubio, Rolán e* Lee. A-B: holotipo, 2,0 mm, Monroe
Co. Florida (FLMNHA); C-E: paratipos: 1,8, 1,9, 1,7 mm, St. Augustine, Florida (USNM, ANSP y
CAL, respectivamente); F-G: protoconchas: F: del holotipo; G: del paratipo de la
122
RUBIO E7 42.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
COrsiaatatand ie adams, which
also lack the ribs on the teleoconch
and have conspicuous spiral
striation.
C. differens spec. nov., which lacks
the axial ribs on the first whorl of the
teleoconch, has a more inflexed col-
umella, and has a smaller umbilicus.
Cochliolepis differens spec. nov. Rubio, Rolán €: Lee (Figures 66A-D)
Type material: Holotype (Figs. 66A-D) in FLMNH (448615) ex CHL.
Type locality: APAC Pit, Sarasota, Florida, USA Plio-Pleistocene.
Etymology: The specific name refers to the shell characters, which differ rather strikingly from
those of its congeners.
Description: Shell (Figs. 66A-C)
depressed, fine, smooth, composed of 3
% whorls. The protoconch (Fig. 66D)
has 1 Y bulbous whorls, about 430 um
in diameter, slightly raised above the
other whorls. Two stages can be dis-
cerned: on the first the surface is
covered by microgranules; the second
exhibits fine growth striae. Teleoconch
formed by 2 Y convex and rapidly-
expanding whorls and is totally
smooth except for fine growth lines.
Suture wide and strongly marked on
all the shell except on the last quarter
of the body whorl. Periphery nearly
symmetrically rounded. Aperture
strongly prosocline, angled at the
suture. Columella arched, a little
reflected towards the umbilicus; exter-
nal lip sharp, angled at the periphery
and a little sinuous basally. Parietal
callus barely appreciable. Umbilicus
wide and deep, with a straight and stri-
ated wall.
Dimensions: Holotype is 4.3 mm in
maximum diameter and 1.76 mm in
height.
Habitat: Unknown.
Distribution: Only known from the
type material.
Remarks: Cochiolepis differens can
be distinguised from C. parasitica,
because the latter has sculpture on the
protoconch and its apex is flat.
C. holmesii has a different proto-
conch sculpture and a sculptured teleo-
conch.
Cochiolepis striata and C. adamsi
have conspicuous spiral sculpture on
the teleoconch.
C. patricioi has axial ribs on the first
whorl of the teleoconch, possesses a less
inflexed columella, and has a larger,
more open umbilicus.
Cochliolepis sp. (Figures 67A-C)
Material examined: Cuba: 2 s, Rancho Luna Beach, Cienfuegos, 20 m (MHNS).
Description: Protoconch (Fig. 67C)
white in color, smooth, formed by 1 Y
whorls of spire and about 360 um of
diameter; apparently it has two well-
differentiated stages, the first is
bulbous, projected from the rest of the
shell and terminates in a varix; the
second stage, of one whorl only has
fine growth lines. A varix marks the
beginning of the teleoconch and the
onset of the spiral sculpture. The shell
(Figs. 67A-B) is light honey in color,
and shows a uniform sculpture on the
entire surface, including the base and
the imner umbilical area: this is
formed by numerous spiral cordlets
with axial microstriae in the spaces
between cords. Sinuous growth lines
are also present.
Dimensions: Our shells measure
2.9 and 3.0 mm in diameter and 1.63
mm in height.
Animal and radula are unknown.
Remarks: Cochliolepis sp. is rather
similar in its general appearance to C.
adamsii, but the protoconch is pro-
125
Iberus, 29 (2), 2011
Figures 6G6A-D. Cochliolepis differens spec. nov. Rubio, Rolán 82 Lee. A-C: holotype, 4.3 mm, Plio-
Pleistocene of Sarasota, Florida (FLMNH); D: protoconch.
Figuras 66A-D. Cochliolepis differens spec. nov. Rubio, Rolán € Lee. A-C: holotipo, 4,3 mm, Plio-
Pleistoceno de Sarasota, Florida (ELMNH); D: protoconcha.
jected upward, shows two different
stages of development, and is not par-
tially covered by the first whorl of the
teleoconch. Since this is the main dis-
124
tinguishing character and we have
such scanty material we defer naming
this taxon until we have more mater-
ial for study.
RUBIO ET AL.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 67A-C. Cochliolepis sp. A-B: shells, 2.9, 3.0 mm, Rancho Luna Beach, Cuba; C: proto-
conch.
Figuras 67A-C. Cochliolepis sp. A-B: conchas, 2,9, 3,0 mm, Playa Rancho Luna, Cuba; C: protocon-
cha.
Genus Episcynia Mórch, 1875
Episcynia Mórch, 1875 (described as subgenus of Architectonica). Malak, Blátter, 22: 155.
Type species: (by monotypy) Solarium inornatum d'Orbigny, 1842.
Diagnosis: Shell trochiform, whorls
rather convex, and with a minutely serrate
peripheral keel, base flattened, umbilicus
narrow and deep, flat sided and strongly
angled with the base of the shell. Perios-
tracum thin, produced into spiral fringes of
filaments above and below the periphery.
Remarks: MOORE (1964) placed Episcy-
nia multicarinata in synonymy with Episcy-
nia inornata comparing the types of Dall
and d'Orbigny and reporting that there
were no morphological differences between
them. Species of Episcynia are known from
the Miocene to Recent. Two valid species
have been described from the West Atlantic:
Episcynia inornata (a recent species) and
Episcynia naso (a fossil species fron the
Miocene of the Dominican Republic).
125
Iberus, 29 (2), 2011
Episcynia inornata (d'Orbigny, 1842) (Figures 68A-F, 69A-C)
Trochus (Solarium) inornatum d'Orbigny, 1842. Moll. Hist. Phys. Pol. et Nat. Líle de Cuba, 2: 67-
68, pl. 19, figs. 25-27. [Type locality: Saint Thomas, Virgin Islands].
Vitrinella multicarinata Dall, 1889. Bull. Mus. Comp. Zoology, 18: 392-393. [Type locality: Off
Cape Hatteras, North Carolina, 15 fms].
Type material: Lectotype (here designated) in NAMUK (Fig. 69C) and paralectotypes (Figs. 69A-
B).
Other material examined: Florida, USA: 1 s, beach, 16 Ave. S, Jacksonville Beach, Duval Co. (CHL);
1 s, 39-45 m, 40-60 mi E Ponte Vedra, St Johns Co. (CHL); 1 s, 30 m, 20 mi E St. Augustine, St Johns
Co. (CHL); 1 s, 53 m, 65 mi E St. Augustine, St Johns Co. (CHL); 1 s, 4.5-6 m, E Seahorse Key, Cedar
Keys, Levy Co. (CHL). Cuba: 6 s, Cienfuegos Bay, 20 m (MHNS); 32 s, Rancho Luna Beach, 10-54
m (CFG). Martinique: 1 s, Fort de France, NW of Grande Seche, 18 m (MCZ 361885); 1 s, Fort de
France, St. Louis, 3-4 miles S. of Fort, 14-16 fms (MCZ 243767). Surinam: 1 s, 70 miles NNE Para-
maribo, 652'N, 5446'W, 51 m (MCZ 274032). Brazil: 1 s, Praia Itararé, Sáo Vicente, Sáo Paulo (CHL);
1 s, Itaparica, 4-5 m (MHNS); 2 s, Salvador (MHNS).
Description: The most complete
description is in MOORE (1964: 105-109).
Shell (Figs. 68A-D) with 5 whorls. The
protoconch (Figs. 68E-F) has barely one
whorl with a slightly rough surface, about
190 um in maximum diameter.
Dimensions: the figured shell is 3.3
mm in diameter and 1.73 mm in height.
Animal and radula unknown.
Habitat: Species with a large bathy-
metric distribution, recorded between 15
and 110 m in depth. According to MOORE
(1964) the species has a wide range of dis-
tribution, but it is uncommon; it seems
that the species prefers shallow water and
the deepest record for living material is 15
fathoms, cited by DALL (1889a).
Distribution: lt has been recorded from
St. Thomas, Virgin Islands (D'ORBIGNY,
1842); from off Cape Hatteras, North Car-
olina (DALL, 1889); from Lake Worth, Palm
Beach, Cape Florida, Miami and Destin,
Florida (PiLSBRY € MCGINTY, 1946); from
Pernanbuco and Alagoas, Brazil (LANGE
DE MORRETES, 1949); from Bocas Island,
Panama (OLsson éz MCGINTY, 1958); from
North Carolina, South Florida, west coast
of Florida, Texas, Panama, Puerto Rico and
the Virgin Islands (MOORE, 1964); Puerto
Rico (WARMKE é ABBOTT, 1961); from
northwestern Campeche Bank, Mexico
(RICE 62 KORNICKER, 1965); from North
Carolina to Florida, Texas and the Greater
Antilles (ABBOTT, 1974); from Texas shores
(ANDREWS, 1977); from Venezuela (PRINCZ,
1982); Cuba (ESPINOSA ET AL., 1985); from
Z6
Pernambuco, Brazil (MELLO éz PERRIER,
1986); from northwest Gulf of Mexico
(ODÉ, 1988); from Aruba island (DE JONG éz
COOMANS, 1988); from shallow waters off
Hutchinson Island, Florida to Texas and
the Caribbean Sea (Lyons, 1989); from
northeast Florida (LEE, 2009).
Remarks: Over the years, this species
has been included in the genera Adeorbis,
Architectónica, Torinia, Trochus and Vit-
rinella before its definitive placement in
Episcynia. The fine periostracum, the
finely serrated peripheral keel and the
straight-sided umbilicus are the main dis-
tinguishing characters of this species.
DaALL (1889a) described Vitrinella
(Episcynia?) multicarinata from Cape Hat-
teras, North Carolina, but he did not make
a comparison of his species with that of
d'Orbigny, and most malacologists
assumed that the two were different.
MOORE (1964) considered them synony-
mous, indicating that he had the opportu-
nity to review d'Orbigny's four syntypes
in the British Museum. The types were in
a vial labelled by d'Orbigny as Rotella car-
inata, but they fit the description of Solar-
ium inornatum. The specimens were com-
pared to the American specimens, and no
distinguishing characters could be found.
Of the four syntypes, the smallest one (Fig.
69C) is in good condition and is hereby
designated the lectotype. So, Episcynia
multicarinata may be considered simply
as a form with extra angulations on the
periphery of the whorls (Fig. 68D).
RUBIO £7 4L£.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 68A-E. Episcynia inornata (Y Orbigny, 1842). A-C: shells, 3.2, 2.7, 3.3 mm, Rancho Luna
Beach, Cienfuegos, Cuba (MHNS); D: shell, form “multicarinata,” 3.6 mm, Praia Itararé, Sáo
Vicente, Sáo Paulo (CHL); E-F: protoconchs, from Cuba and Florida.
Figuras 68A-FE Episcynia inornata (4'Orbigny 1842). A-C: conchas, 3,2, 2,7, 3,3 mm, Playa Rancho
Luna, Cienfuegos, Cuba (MHNS); D: concha, forma “multicarinata,” 3,6 mm, Praia Itararé, Sáo
Vicente, Sáo Paulo (CHL); E-F: protoconchas, de Cuba y Florida.
Iberus, 29 (2), 2011
Figures 69A-C. Episcynia inornata (d'Orbigny, 1842). A-C: shells labeled as Rotella carinata in
NHMUK: A-B: paralectotypes; C: lectotype.
Figuras 69A-C. Episcynia inornata (4'Orbigny 1842). A-C: conchas etiquetadas como Rotella cari-
nata en NAMUK: A-B: paralectotipos; C: lectotipo.
Genus Parviturboides Pilsbry 2 McGinty, 1950
Parviturboides Pilsbry $ McGinty, 1950. The Nautilus, 63(3): 86.
Type species: (by original designation) Vitrinella interrupta C.B. Adams, 1850 = Cyclostrema
sanibelense Pilsbry, 1939. Caribe, Recent.
Diagnosis: In MOORE (1964: 155)
be shell is small, EroCionaa,
sculpture of spiral cords and axial
threads, umbilicus narrow and bor-
dered by a spiral cord. Aperture sub-
circular but angular above, columel-
lar margin thickened. The animal has
two ciliated tentacles, black eyes,
two pallial tentacles, a pair of oper-
cular lobes amd the posterior end of
the foot may be bilobed. The penis is
long, straight, and glandular. The
operculum is thin, multispiral and
cinc ULT
128
Remarks: The shell is very similar
to some of the genus Parviturbo
Pilsbry € McGinty, 1945, from which
it can be distinguished by its proto-
conch, which is less than 2 whorls,
and by the abrupt beginning of the
sculpture on the teleoconch. PILSBRY
(1950: 87), in describing the genus
Parviturboides, stated that it should
be compared with the genus
Pseudorbis Monterosato, 1884 for the
similarity in shell characters. MOORE
(1964: 156) stated “but this has not
yet been done”. This comparison is
RUBIO ET AZ.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
no longer necessary because the
genus Pseudorbis was placed in
Skeneidae by RUBIO é RODRÍGUEZ
BABÍO (1991), who noted that its
radula is rhipidoglossate, and its
anatomical characters are similar to
those of the genera Skenea and
Dikoleps.
Parviturboides interruptus (C.B. Adams, 1850) (Figures 70A-L, 71A-E)
Vitrinella interrupta C.B. ADAMS, 1850. Monograph of Vitrinella, a new genus of new species of
Turbinidae: 6. [Type locality: Port Royal, Jamaica].
Cyclostrema zacalles Mazyck, 1913: 18.
Cyclostrema sanibelense Pilsbry, 1939. The Nautilus, 53: 53, pl. 8, fig. 3. [Type locality: Sanibel
Island, Florida].
Parviturbo zacalles (Mazyck, 1913): In PiLsBRY € MCGINTY, 1945b. The Nautilus, 59: 57, pl. 6,
PS Zz Za O:
“Cyclostrema” interruptum sanibelensis Pilsbry €££ McGinty, 1945b. The Nautilus, 59: 58, pl. 6,
fig. 9.
Cyclostrema interruptum C.B. Adams in Pilsbry, 1946. Notulae Naturae, 162: 5, pl. 1, fig. 4-5.
Type material: CLENCH € TURNER (1950: 294, plate 35) mention two specimens in the lot of C.B.
Adams Collection (MCZ 156270), and they represent two different shells in their plate, but they
caption the two figures “holotype” despite the fact that there are two different shells depicted. In
the actual lot examined by us only one shell is present and we consider it the lectotype.
Other material examined: Cuba: 159 sp, Cañón de la Bahía de Cienfuegos, between 0-10 m (CFG);
14 sp, Rancho Luna Beach, 10-20 m (MHNS); 28 sp, Rancho Luna Beach, 45 m (MHNS). Guade-
loupe: 2 s, north coast, 2 m, between rocks (CJP); 3 s, Point-a-Pitre, 5 m (CHL). Florida, USA: 2 s,
21 m, 14 mi ENE Mayport, Duval Co. (CHL); 2 s, 3-4 ft, Pelican Shoals, Key West, Monroe Co. (CHL);
5 sp, Sebastian Inlet, Brevard County, North Jetty, under bridge (CHL); 3 s, SE Clearwater Island
bridge Little Pass, Pinellas Co. (CHL); 1 s, 10th Avenue, Atlantic Beach, Duval Co. (CHL); 1 f, 2-3
m, Seahorse Key, Cedar Keys, Levy Co. (CHL). Puerto Rico: 7 s, beach, Holiday Inn, San Juan,
(CHL). Virgin Islands: 7 s, beach, Magens Bay, N coast St. Thomas (CHL). Nicaragua: 3 s, The
Witties, 20 m (MHNS). Panama: 1 s, beach, Portobello (CHL); 5 s, Careneros Island 920.394'N,
32713.932'W, 8-9 m (CHL); 1 s, 1 mi Punta San Blas, San Blas Island, intertidal (CHL); 1j, 09%22.027'N,
8214.336'W (CEG). Venezuela: 12 s, near Jose Griego, N Margarita Island (CHL). Haiti: 6 s, Labaree,
sand beach (CHL). Brazil: 1 s, Praia de Itararé, Sáo Vicente, Sáo Paulo (CHL).
Description: The best conchologi-
cal and anatomical description is in
MOORE (1964: 156-161).
Shell (Figs. 70A-C, 71A-C) a little
depressed, globose, trochiform, spiral
sculpture formed by strong cords and
fine axial striae; umbilicus very
narrow. Protoconch (Figs. 70D-F) large,
with a diameter of about 400 um, its
surface roughened by numerous tuber-
cles and some spiral lines. Two differ-
ent stages can be distinguished. Teleo-
conch with spiral strong cords and fine
axial ribs in the interspaces; on the last
whorl 8-9 spiral cords can be seen.
Base rounded, aperture oblique, almost
circular, but a little angled at the fusion
point of the external lip with the col-
umella.
Dimensions: Holotype 1.59 mm in
diameter. Our largest shells measure
about 2.5 mm in maximum dimension.
Operculum (Figs. 70G-H) chitinous,
multispiral with a central nucleus.
Radula (Fig. 701) taenioglossate, the
formula 2+1+R+1+2. Central tooth wide
basally, with three denticles on the
ventral margin. Cutting area formed by
a large and sharp cusp and 6-7 small
denticles of small size at each side.
Lateral teeth similar to the central one,
cutting area with a central cusp and 4-5
smaller denticles at each side. Marginal
teeth elongated, with 22-25 denticles on
the free margin.
Habitat: This species lives between 0
and 48 m deep; deeper records are
based on empty shells. In Cienfuegos
129
Iberus, 29 (2), 2011
Figures 70A-I. Parviturboides interruptus (C.B. Adams, 1850). A-C: shells, 1.4, 1.4, 1.3 mm,
Rancho Luna Beach, Cienfuegos, Cuba (CFG); D-F: protoconchs; G-H: operculum, 0.65 and 0.5
mm, from shells of 1.5 and 1.4 mm; I: radula.
Figuras 70A-1. Parviturboides interruptus (C.B. Adams, 1850). A-C: conchas, 1,4, 1,4, 1,3 mm,
Playa Rancho Luna, Cienfuegos, Cuba (CFG); D-F: protoconchas; G-H: opérculos, 0,65 y 0,5 mm,
procedentes de conchas de 1,5 y 1,4 mm, l: rádula.
130
RUBIO £7 ALz.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 71A-E. Parviturboides interruptus (C.B. Adams, 1850). A-C: shells, 1.25, 1.1, 1.3 mm, The
Witties, Nicaragua (MHNS); D: protoconch; E: shell, Guadeloupe (CJP).
Figuras 71A-E. Parviturboides interruptus (C.B. Adams, 1850). A-C: conchas, 1,25, 1,1, L3 mm,
The Witties, Nicaragua (MANS); D: protoconcha; E: concha, Guadeloupe (C]P).
Bay, Cuba it is relatively common
between 0 and 10 m deep. It has been
recorded on sponges from 7 to 90 m
deep (ABBOTT, 1974). Under rocks and
in crevices in shallow water (ANDREWS,
1977). On rocky coasts it has been found
among sabellariid polychetes (WILEY ET
AL. 1982). Also found on sandy and
muddy bottoms (VOKES éz VOKES, 1984).
On reefs far from the coast this species
57
Iberus, 29 (2), 2011
has been seen associated with colonies
of Oculina varicosa, algae, sponges,
octocorals and dead coral, between 6
and 80 m deep (REED € MIKKELSEN,
1987). Also on algae and sand bottom
(MIKKELSEN ET AL. 1995). It has been
collected directly on sponge and algae
in 1-2 feet and from colonies of Vermic-
ularia knorri taken at 30 m (Lek, 2009).
In Cuba it has been collected in the
bases of Gorgonia flabellum and G.
ventalina.
Distribution: It is a common and
widely distributed species in the West
Indies. It has been recorded from Port
Royal, Jamaica (C.B. ADaAms, 1850).
From Sanibel Island, Florida (PILSBRY,
1939). From Colón and Bocas Island,
Panama (OLsson € MCGINTY, 1958).
From South Carolina, Florida, Texas,
Mexico, Panama, Jamaica, Haiti and
Puerto Rico (MOORE, 1964; ANDREWS,
1977). From South Carolina to Gulf of
Mexico and Caribbean Sea (HOUBRICK,
1968). From Portete, Costa Rica
(HOUBRICK, 1968; ROBINSON éz
MONTOYA, 1987). From North Carolina
(PORTER, 1974). From punta del Morro
to Punta Delgada, Veracruz, Mexico
(WILEY ET AL. 1982). From Campeche to
Ciudad del Carmen and Zacatal; from
El Cuyo to punta Ninum, from Punta
Yalkupul to isla Cerritos; from Isla
Mujeres to Isla Holbox; from Cancún to
the Belize border (VOKES € VOKES,
1984). From North Carolina to Florida;
Texas, the Antilles, Brazil, Uruguay
(Rios, 1985). From Cuba (ESPINOSA ET
AL., 1985). From Florida (REED éz MIk-
KELSEN, 1987). Aruba; Puerto Rico (DE
JONG € COOMANS, 1988). From Florida
to Texas and north coast of South
America, Colombia (Díaz MERLANO éz
PUYANA HEGEDUS, 1994). From Indian
River Lagoon, Florida (MIKKELSEN ET
AL. 1995); from Abaco, Bahamas
(REDFERN, 2001). From Cahuita to
Gandoca, Cuba (ESPINOSA éz ORTEA,
2001). From St. Augustine Inlet, north-
east Florida (LEE, 2009). Venezuela,
Haití, Panama, Nicaragua, and Brazil
from our material.
Remarks: Parviturboides interrup-
tus is like no other vitrinellid from the
West Atlantic. On the other hand, it can
be confused with some species of the
genus Parviturbo Pilsbry € McGinty,
1945, distinguished from them by its
protoconch of no more than 2 whorls,
its sculpture commencing abruptly at
the end of the protoconch. Another
genus with conchologically similar
species, Pseudorbis Monterosato, 1884,
has been placed in Skeneidae, based on
the rhipidoglossate radula of Pseudor-
bis granulum (Brugnone, 1873), that
has been recently observed (RUBIO €
RODRÍGUEZ BABÍO, 1991).
Some populations (shown in
Figures 71A-C) present more numerous
riblets in the axial sculpture (about 45
on the first whorl versus 23) than the
shells of other populations (Fig. 70A-
E).
Genus Pleuromalaxis Pilsbry £ McGinty, 1945
Pleuromalaxis Pislbry y McGinty, 1945a. The Nautilus, 59: 1-13.
Type species: (by monotypy) Pseudomalaxis (Pleuromalaxis) balesi Pilsbry € McGinty, 1945.
Caribe, Recent.
Diagnosis: Shell strongly depressed,
with two spiral keels on the periphery.
Space between the keels concave, axial
riblets present on both top and bottom
of the whorl. Umbilicus wide, shallow
to moderately deep.
Remarks: The taxon Pleuromalaxis
was created as a section of Pseudoma-
152
laxis, as Pilsbry € McGinty
believed that their species was con-
generic with Pseudomalaxis nobilis
ARE e rn ater O LS SON es
MCGINTY (1958) considered it a full
genus and placed it in the Vitrinell-
idae, removing it from the Architec-
tonicidae.
RUBIO ET AL.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Pleuromalaxis balesi (Pilsbry £ McGinty, 1945) (Figures 72A-D)
Pseudomalaxis (Pseudomalaxis) balesi Pilsbry € McGinty, 1945a. The Nautilus, 59: 10, pl. 2, fig.
8. [Type locality: Missouri Key, Florida Keys].
Type material: Holotype in ANSP (181124). Represented in MOORE (1964). Not examined.
Other material examined: Cuba: 2 s, Cayo Avalos, 8 m (MHNS); 1 s, Cayo Perez Diego, 5 m (MHNS);
1 s, Jibacoa, 3-6 m (MHNS); 1 s, Baracoa, 0 m (MHNS); 4 s, Guajimico, 0 m (MHNS); 3 s, Cienfue-
gos Bay, sta. 12, 2207'N 8027'W, 9 m (MHNS); 32 s, Cienfuegos Bay, 8 m (MHNS); 1 s, Cienfue-
gos Bay, 20-30 m (MHNS); 1 s, Rancho Luna Beach, 12 m (MHNS); 1 s, Rancho Luna Beach, 35 m
(MHNS)y; 13 s, Rancho Luna Beach, 45 m (MHNS); 2 s, Los Laberintos, Rancho Luna Beach, 35 m
(MHNS). Granadines: 1 s, Mayreau, 8 m, coralline sand with coral blocks, gorgonians and sponges
(CJP). Trinidad and Tobago: Tobago, 1 s, Horse shoe reef, 15 m, sandy grit (CHL). Mexico: 1 s,
Puerto Morelos, Yucatan, 6-18 m (MHNS).
Description: Shell (Figs. 72A-B)
strongly depressed but not planispiral.
Umbilicus wide. Protoconch (Fig. 72D)
apparently smooth, measuring 260 um,
it has two distinct parts, and terminates
in a varix. Teleoconch completely
covered by fine spiral cordlets. Peripher-
ally bicarinate and concave between the
two keels. On the dorsum there are two
series of axial ribs: the finer ones begin
on the suture and fade towards the
middle of the dorsum, the stronger ones
run from the middle of the dorsum out
to the upper peripheral keel, forming
strong nodules at their terminations.
The base is divided in two by a strong
spiral cord. Aperture oblique, peristome
not continuous, parietal callus strong.
Umbilicus wide and shallow which
exposes the protoconch within.
Dimensions: Holotype 1.59 mm in
diameter. Our material is between 1 and
1.5 mm, but a 1.8 mm shell is mentioned
in the literature.
Operculum (Fig. 72C) fine, multispi-
ral and with a central nucleus.
Habitat: This species has a wide
bathymetric range, being recorded
between 0 and 100 m in depth. It has
been collected alive under rocks in
shallow water (MOORE, 1964). In Cuba
itis a relatively frequent species but
not common, only 1-2 specimens
appear in each station studied. In
Cuba it was collected between 0 and
40 m. Reported further down in other
areas.
Distribution: It is recorded from
the USA: Missouri Key, Florida Keys
(PrLsBRY é MCGINTY, 1945a); from
Havana Province, Cuba (JAUME
BORRO, 1946); from Bocas Island,
Panama (OLSssON € MCGINTY, 1958);
from Grand Cayman Island (ABBOTT,
1958); from Puerto Rico (WARMKE «z
ABBOTT, 1961); from Florida, Texas and
Panama (MOORE, 1964); from South-
east Florida, Texas and the Caribbean
(ABBOTT, 1974); from Quintana Roo,
Mexico (VOKES é€z VOKES, 1984). From
Grenadines and Tobago in the present
work.
Remarks: The only other species
known in this genus, Pleuromalaxis
pauli Olsson € McGinty, 1958,is
smaller and has a more elevated spire.
Genus Solariorbis Conrad, 1865
Solariorbis Conrad, 1865. Amer. Journ. Conch. 1: 30.
Type species: (by monotypy) Delpinula depressa Lea. Eocene of Clairbonian, Alabama.
Diagnosis: After PiLsBRY (1953):
sotell 2 to 4 ma, white, stiong,
depressed, with 3 or 4 whorls, either
rounded or angular, and usually with
some spiral striation, the grooves typi-
cally punctate; apical whorls level and
smooth. The umbilicus has a spiral
ridge on a thickening of the wall,
SS
Iberus, 29 (2), 2011
Figures 72A-C. Pleuromalaxis balesí (Pilsbry 8% McGinty, 1945). A-B: shells, 1.0, 1.5 mm, Rancho
Luna Beach, Cienfuegos, Cuba; C: operculum; D : protoconch.
Figuras 72A-C. Pleuromalaxis balesi (Pilsbry € McGinty 1945). A-B: conchas, 1,0, 1,5 mm, Playa
Rancho Luna, Cienfuegos, Cuba; C: opérculo; D : protoconcha.
ending in a callus lobe or ledge at the
columellar margin. Aperture rounded,
with a small groove at the top. Outer lip
rather thin and evenly curved”.
Remarks: Solariorbis was described
as a section or subgenus of Teinostoma.
The peculiar thickening around the
umbilicus is one of the more important
characteristics of the genus. Another
character common to many species is
the reticular punctate sculpture due to
the interaction of spiral grooves and
axial ribs; this character was mentioned
by DaALL (1892) in reference to T.
depressum as the type species of Solari-
orbis. The genus is distributed from the
Eocene to the Recent with numerous
fossil species described. MOORE (1964)
considered the following species as
Recent: S. multistriata (A.E. Verrill,
134
1884), S. mooreana (Vanatta, 1904), S.
blakei (Rehder, 1944), S. infracarinata
(Gabb, 1881), Solariorbis schumoi
(Vanatta, 1913) S. hondurasensis
(Vanatta, 1913), S. terminalis (Pilsbry €
McGinty, 1946), S. corylus Olsson €
McGinty, 1958, S. decipiens Olsson é
McGinty, 1958, and S. semipunctus
Moore, 1964. To these it is necessary to
add S. guianensis Altena, 1966 and S.
antillensis de Jong € Coomans, 1988,
which were described subsequently;
also included in the present account as
recent are S. funiculus (Dall, 1892) and
S. contractus (Vanatta, 1913). Solariorbis
decipiens is transferred to the genus
Anticlimax due to the conchological
similarity with the species of this genus.
Some species previously placed in
the genus Solariorbis, such as S. con-
RUBIO ET 42.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
tractus, S. funiculus and S. opsitelo-
tus present a small triangular thicken-
ing at the junction of the columella
and the umbilical margin, which does
not impinge on the umbilicus; further
more they lack the characteristic
ornamentation of the genus Solarior-
bis (the reticular punctate sculpture
due to the interaction of the spiral
grooves and axial ribs). For these
reasons and because their spiral cord
ornamentation, umbilical margin and
protoconch are more similar to Vit-
rinella anneliesae, we have deter-
mined that they are better placed in
Vitrinella.
Solariorbis antillensis de Jong $: Coomans, 1988 (Figures 73A-C)
Solariorbis antillensis de Jong € Coomans, 1988. Studies of the Fauna of Curacao and other
Caribbean Islands, 69: 33, pl. 13, fig. 143. [Type locality: Curacao / Aruba]
Type material: Holotype in ZMA (3.87.064). Represented in DE JONG ££ COOMANS (1988). Not exam-
ined.
Other material examined: Cuba: 1 s, Rancho Luna Beach, 35 m (MHNS). Puerto Rico: 1 s, E Boca
de Cangrejos (MCZ 361886). Bahamas: 1 s, South Riding Rocks, Cay Sal Bank, base of coral reef in
fine sediment (CHL). Antiqua and Barbuda: 1 s, [le Sister, N St. Johns, 5-6 m (CJP). Guadeloupe: 2
s, 1 £, Port Louis, 0-2 m, brushing stones (CJP).
Description: The original description
given by DE JONG £: COOMANS (1988) is
as follows: “Shell disc-shaped, wider
than high, 1% nuclear and two postnu-
clear whorls. The whorls are rounded,
without carinae and covered by spiral
striae with punctuated grooves. $. antil-
lensis differs from S. guianensis by a
quite different protoconch, the under
side being less flattened, the umbilicus
less closed, the axial wrinkles less mani-
fest, the spirals more prominent and
their punctuation more clear”. The ambi-
guity of the distinguishing characters has
given us reason to amplify the descrip-
tion.
We add: Shell (Figs. 73A-B) planispi-
ral, depressed, shell of 2 % rapidly-
expanding whorls. Protoconch (Fig. 73C)
with 1 Y whorls, totally smooth, about
240 um in maximum diameter. Teleo-
conch with 1 Y whorls ornamented by
regularly spaced axial ribs and spiral
cords of equal size. This sculpture covers
all the shell except a small area on the
base close to the periphery. The intersec-
tion of ribs and cords forms a regular
reticulation characteristic of the genus.
Aperture rounded, base of the columella
and internal lip thickened and reflected
outward forming a typical callus.
Umbilicus narrow and deep, nearly
closed by the thickening of the columella
until the last Y of the body whorl, which
then deviates laterally.
Dimensions: Holotype 1.6 mm in dia-
meter. The figured specimen measures
1.29 mm in maximum dimension.
Habitat: Nothing is mentioned by DE
JONG £ COOMANS (1988) in the descrip-
tion work of the species. Our material
comes from a coralline sandy bottom 35
m deep.
Distribution: Only know from
Curacao / Aruba, Puerto Rico, Bahamas,
and Cuba.
Remarks: S. antillensis is very close to
S. guianensis, with which it can be con-
fused. It is best differentiated by the reg-
ularity of the ornamentation, which
forms a characteristic reticulation not
present in S. gutanensis.
Solariorbis guianensis Altena, 1966 (Figures 73D-F)
Solariorbis guianensis Altena, 1966. Zoologische Mededelingen, 41: 238-239, figs. 4a-c. [Type
locality: Cupido, Maratakka River, Surinam].
(85
Iberus, 29 (2), 2011
Figures 73A-C. Solariorbis antillensis de Jong 8 Coomans, 1988. A-B: shell, 1.3 mm, Rancho
Luna Beach (MHNS); C: protoconch. Figures 73D-FE. Solariorbis guianensis Altena, 1966. D-E:
shell, 1.5 mm, Cienfuegos Bay (MHNS); F: protoconch.
Figuras 73A-C. Solariorbis antillensis de Jong «* Coomans, 1988. A-B: concha, 1,3 mm, Playa
Rancho Luna (MHNS); C: protoconcha. Figuras 73D-E Solariorbis guianensis Altena, 1966. D-E:
concha, 1,5 mm, Bahía de Cienfuegos (MANS); E: protoconcha.
Type material: Represented in ALTENA (1966, 1975). Not examined.
Other material examined: Cuba: 2 s, Cienfuegos Bay, 20-30 m (MHNS).
Description: ALTENA (1966: 238, figs.
4a-c) figuring the holotype, presents a
drawing without many details attempt-
ing to depict the essential aspects of
ornamentation: spiral pitted lines and
axial ribs. DE JONG € COOMANS (1988:
33) Temarked: “sculpture of the last
whorl consisting of little pronounced
and irregular fine radiating striae start-
ing from the suture and the umbilicus,
but not reaching the periphery and a
few indistinct spirals, near the suture on
the upper side and near the periphery
Só
on the under side;” pointing out the dis-
tinguished characters of this species.
We add: Shell (Figs. 73D-E) lenticu-
lar, depressed, of 3 Y rapidly increasing
whorls. Protoconch (Fig. 73F) smooth, 1
Y whorl, measuring about 240 um; a
strong varix is present at the transition
to the teleoconch, on the first whorl of
which there is a pitted reticular sculp-
ture formed by the crossing of spiral
cords and axial ribs.
The principal distinguishing charac-
ter is the ornamentation on the last
RUBIO ET 42.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
whorl, formed by fine and irregular
radial ribs which begin at the suture and
disappear before reaching, the periphery,
and spiral cordlets which are more
evident near the suture and close to the
umbilicus, keeping a central zone of the
last whorl without sculpture. Base
convex, without ornamentation, except
for the growth lines. The umbilicus is
narrow and deep, nearly obliterated by
the thickened columella until the last Y
of the body whorl, where it abruptly
deviates laterally. Aperture rounded,
external lip fine, internal lip thickened
and reflected towards umbilicus.
Dimensions: Holotype 0.90 mm in
diameter. The figured shell measures
1.47 mm in maximum diameter.
Habitat: DE JONG € COOMANS (1988:
33) mention that a significant number of
specimens was found near Cabrieten-
berg in Spaanse Water, always together
with Teinostoma lerema. ln the area
studied by us it is quite scarce and only
2 specimens were found.
Distribution: Known from Colombia
(Díaz MERLANO é PUYANA HEGEDUS,
1994), Aruba (DE JONG é COOMANS,
1988), and Cuba: Cienfuegos.
Remarks: Originally described as a
fossil of the Holocene of Surinam. DÍAZ
MERLANO é€ PUYANA HEGEDUS (1994)
recorded it as live-collected in Colombia
and DE JONG é€ COOMANS (1988) in
Aruba. The shell presents the basic char-
acters which distinguish this species
from others included in the genus Solar-
iorbis: the thickening of the umbilical
wall and the finely pitted reticular
sculpture.
Solariorbis blakei (Rehder, 1944) (Figures 74A-D)
Vitrinella blakei Rehder, 1944a. The Nautilus, 57: 97, pl. 9, figs. 1-2. [Type locality: Bed 1 (lowest
bed) of the Talbot Formation, Wailes Bluff, near Cornfield Harbour, St. Mary's County, Vir-
ginia].
Type material: Holotype in USNM (537834). Not examined.
Material examined: Florida, USA: 4 s, E. St. Augustine, St. Johns Co., (CHL); 2 s, Cedar Key, Levy
Co., 4.5-6 m shell /rubble bottom (CHL); 2 s, Stuart, Martin Co. (CHL); 2 s, Pinellas Co., (CHL); 1
s, SE Mayport (CHL). Puerto Rico: 2 s, beach at Holiday Inn, San Juan (CHL). Turks € Caicos: 1 s,
Grand Turk (CHL).
Description: Shell (Figs. 74A-C)
strongly depressed, small size, spire
almost flat, very weakly sculptured,
umbilicus nearly or entirely covered
by the thickening of the umbilical
wall. Protoconch (Fig. 74D) smooth
with 2 whorls, size about 330 um in
diameter and projecting slightly api-
cally. Teleoconch with 1 % whorls,
sculptured with faint spiral
cords/grooves and short axial wrin-
kles that radiate out from the suture.
On the last half whorl the cords are
weakened and the axial ribs almost
disappear, persisting only in the sub-
sutural. area. The base. 18. broad,
smooth, and evenly rounded. Aper-
ture oblique with a heavy parietal
callus. Columella thickened, reflected
towards the umbilicus, forming a
small callus. Umbilicus reduced to a
very narrow fisure, limited, and par-
tially occluded by the thickening of
the umbilical margin although the col-
umella deviates laterally in the last Y
whorl. On the umbilical wall strong
growth folds can be seen.
Dimensions: About 1.5 mm in
maximum diameter.
Habitat: It lives in creeks and bays
(ANDREWs, 1977). Bathymetric range: 0
to 26 m.
Distribution: This species was con-
sidered a continental species with an
extensive distribution along the east
coast of North America. It had never
been reported from any of the West
Indian islands (MOORE, 1964), but
actually there are records from a few
islands. USA: South Carolina, Florida:
137
Iberus, 29 (2), 2011
Figures 74A-D. Solariorbis blakeí (Rehder, 1944). A-C: shell, 0.8 mm, Holiday Inn, Puerto Rico
(CHL); D: protoconch.
Figuras 74A-D. Solariorbis blakei (Rehder, 1944). A-C: concha, 0,8 mm, Holiday Inn, Puerto Rico
(CHL); D: protoconcha.
East Florida, West Florida; Mississippi;
Texas; Mexico: unlocalized; Costa
Rica, Panama. Reported from Colón
and Bocas Island, Panama (OLssonN €
MCGINTY, 1958). From Florida, Missis-
sippi, Texas, Oregon, and Campeche
Bank, Mexico (MOORE, 1964). From
South Carolina to the Gulf Mexico and
the Caribbean Sea (HOUBRICK, 1968).
From South Carolina to Texas and the
Caribbean Sea (ABBOTT, 1974); from
the states of the Gulf to Mexico
(EMERSON é JACOBSON, 1976). East
coast of the USA; Florida; states of the
138
Gulf of Mexico; Mexico (ANDREWS,
1977). Portete, Costa Rica (HOUBRICK,
1968; ROBINSON € MONTOYA, 1987).
From Martin, Palm Beach, Pinellas,
and Levy Cos., Florida; Texas and
Puerto Rico (ODÉ, 1988). From Lee Co.
(GUNDERSEN, 1998). From SE Mayport
and St. Augustine, Florida (LEE, 2009).
Remarks: Described as a Pleis-
tocene fossil. S. blakei like S. semi-
punctus is smaller than other West
Indian Solariorbis. S. blakei can be dis-
tinguished from S. semipunctus by the
rounded and smoother dorsal surface.
RUBIO £7 AZz.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Solariorbis elegans (Olsson £ McGinty, 1958) (Figures 75A-G)
Vitrinella (Striovitrinella) elegans Olsson € McGinty, 1958. Bulletins of American Paleontology
39: 31, pl. 3, figs. 1-1d. [Type locality: Bocas Island, Panama].
Type material: Holotype in ANSP (211877). Not examined.
Material examined: Panama: 3 s, Bocas Island, drift (CHL); 2 s, Portobello, drift (CHL).
Description: Shell (Figs. 75A-E)
white or glassy, depressed, about 3 Y
whorls. The protoconch (Figs. 75F-G) is
projected over the teleoconch, has a
little more than one whorl, smooth,
and about 400 um in maximum diame-
ter. In some shells two strong varices
can be seen, which mark the two stages
of development. Teleoconch totally
covered by spiral cords of similar size,
which at the crossing points with the
axial lines form small rectangles, more
evident and rounded on the dorsum
and on the base of the teleoconch, and
a little more elongate on the periphery.
There are more than 35 spiral cordlets
on the last whorl. Aperture rounded,
oblique, external lip fine, columella
strong and reflected towards the
umbilicus, forming a small callus.
Umbilicus deep; the peristome sharp, a
little thickened near the base. Inner
wall of the umbilicus with growth
folds.
The largest shell examined mea-
sures 2.0 mm in maximum diameter
and 1.1 mm in height.
Habitat: Sand in shallow water
(Díaz MERLANO éz PUYANA HEGEDUS,
1994). Depth: 0 m (live 0 m).
Distribution: Costa Rica, Panama,
Colombia, Venezuela: unlocalized.
Reported from Colón and Bocas
Island, Panama (OLsson é€ MCGINTY
1958). Central América (HOUBRICK,
1968). Western Caribbean (ABBOTT,
1974). Portete and Moin, Costa Rica
(HOUBRICK, 1968; ROBINSON €
MONTOYA 1987). From Venezuela
(BRINEZ, 1982). From Costa Rica to
Colombia (Díaz MERLANO é PUYANA
HEGEDUS, 1994).
Remarks: Described in the sub-
genus Striovitrinella Olsson €
McGinty, 1950; this is characterized by
having the entire surface of the shell
sculptured with fine, threadlike
spirals, operculum circular, thin, chiti-
nous, with numerous, slowly enlarging
spiral whorls; radula taenioglossate.
Based on the thickening of the umbili-
cal wall due to the enlargement and
reflecting towards the umbilicus of the
columella, the columellar callus, and
the pits formed by the crossing of
spiral cords and growth folds, we have
decided to place this species in Solari-
orbis.
Solariorbis elegans is very similar
to. Solariorbis . multistriatus, from
which it can be distinguished by the
shape of the umbilical callus, being
less globose, and because the proto-
conch is more erect.
Solariorbis infracarinatus (Gabb, 1881) (Figures 76A-H, 77A-C)
Adeorbis infracarinata Gabb, 1881. Journ. Acad. Nat. Sci. Philadelphia, 2 serie, 8: 365, pl. 46,
fig. 62 [Type locality: Pliocene beds of Limon, Costa Rica].
Teinostoma bartschi Vanatta, 1913. Proc. Acad. Nat. Sci. Phil., 65: 26-27, pl. 2, figs. 9-11.
[Type locality: Porto Barrios and Livingston, Guatemala].
Solariorbis euzonus Pilsbry € McGinty, 1950. The Nautilus, 63: 85, pl. 5, figs. 7-7a. [Type
locality: Sebastian, Indian River County, Florida].
Type material: Holotype of Adeorbis infracarinata in ANSP (3380) and figured by MOORE
(1965). Holotype of Teinostoma bartschi in ANSP (76501) figured by VANATTA (1913). Not
examined.
189
Iberus, 29 (2), 2011
Figures 75A-G. Solariorbis elegans (Olsson 8 McGinty, 1958). A-B: shell, 2.0 mm, Portobello,
Panama (CHL); C-E: shells, 1.5, 1.4, 1.5 mm, Bocas Island, Panama (CHL); F-G: protoconchs.
Figuras 75A-G. Solariorbis elegans (Olsson e McGinty, 1958). A-B: concha, 2,0 mm, Portobello,
Panama (CHL); C-E: conchas, 1,5, 1,4, 1,5 mm, Isla Bocas, Panama (CHL); F-G: protoconchas.
Other material examined: Guatemala: 2 s, Livingston, 3 m (MHNS). Brazil: 1 s, Itaparica (MHNS);
1 s, Praia de Itararé, Sáo Vicente, Sáo Paulo (CHL). Florida, USA: 7 s, Cedar Key (CHL); 1 s, Bahia
Honda Key, Monroe Co. (CHL); 1 s, Marco Island, Collier Co. (CHL); 1 s, SE Mayport (CHL); 2 s,
APAC Pit, Sarasota, Plio-Pleistocene (CHL).
140
RUBIO ET 4L£.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 76A-H. Solariorbis infracarinatus (Gabb, 1881). A-C: shell, 1.4 mm, Livingstone,
Guatemala (MHNS); D: protoconch; E-H: form with axial ribs, 1.7, 1.8, 2.0 mm, Florida, USA
(CHL); H: protoconch.
Figuras 76A-H. Solariorbis infracarinatus (Gabb, 1881). A-C: concha, 1,4 mm, Livingstone, Guate-
mala (MHNS); D: protoconcha; E-H: forma con costillas axiales, 1,7, 1,8, 2,0 mm, Florida, USA
(CHL); H: protoconcha.
141
Iberus, 29 (2), 2011
Figures 77A-C. Solariorbis infracarinatus (Gabb, 1881). A-B: shell, 1.7 mm, Itaparica, Brazil
(MHNS); C: protoconch.
Figuras 77A-C. Solariorbis infracarinatus (Gabb, 1881). A-B: concha, 1,7 mm, lItaparica, Brazil
(MHNS); C: protoconcha.
Description: Shell (Figs. 76A-C, 77A-
B) depressed, rounded spire, carinate at
the periphery, and narrowly umbilicate.
Protoconch (Fig. 76D) of nearly 1 Y
whorls and about 340 um in diameter.
Teleoconch of about 2 whorls with a
strong Carina near the periphery.
Between this and the umbilicus there
are 3 spiral cords. On the dorsum,
between the suture and the periphery
there are numerous axial ribs. A strong
cord borders the umbilicus internally,
thickening slowly towards the aperture
and forming a callous lobe on the col-
umellar margin typical of the genus.
Habitat: Species common in shallow
water in coastal bays. Amply distributed
in continental waters. Not recorded in
any island of the West Indies (MOORE,
1964).
Distribution: It has been recorded
from Florida to Texas (USA), Campeche
142
Bank (Mexico), Guatemala and Panama
(MOORE, 1964). From the USA, North
Carolina to Gulf of Mexico and
Caribbean Sea (HouBrick, 1968). On
both sides of Florida; from Texas to
Campeche Bank; Central America
(ANDREWS, 1977). From Campeche to
Ciudad del Carmen and Zacatal, Mexico
(Vokes éz VOKES, 1984). From Florida
(Lyons, 1989). South of Florida; Texas;
Caribbean Sea (ROBINSON, 1991). Florida
and Texas to Colombia (Díaz MERLANO
éz PUYANA HEGEDUS, 1994). Rio Grande
do Norte, Brazil (Rios, 1994). Our mater-
ial is from Livingston, Guatemala. Also
Florida Plio-Pleistocene: record from
Chesapeake Bay, Virginia by Wass
(1972: 125) needs confirmation.
Remarks: MOORE (1964) consid-
ered Teinostoma bartschi Vanatta,
913 “and. SolariorbisteuzonWs
Pilsbry € McGinty, 1950 synonyms
RUBIO ET AL.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
of Solariorbis infracarinatus not
finding important differences. In
spite of this, some databases treat
T. bartschi as a valid species. The
figured shell (Figs. 77A-C) was col-
lected in Livingston, Guatemala, its
type locality.
PiLsBRY (1953) figured a shell of
Solariorbis euzonus from the Plio-
Blerstocene ot St. Petersburg, in
which he distinguished 2-3 fine but
easily-seen spiral cordlets on the
dorsum, above the keel, as well as
fine axial ribs on the first whorl of
the teleoconch, which fade on the
last whorl. Both these features can
be found in well-preserved speci-
mens of T. bartschi and S. infracari-
nata.
VANATTA (1913) and PILSBRY é
MCGINTY (1950), in describing T.
bartschi and 5. euzonus. respec-
tively, did not compare these
species ito Eos IMracanimarus
described by GABB (1881). Based on
the preceding analysis, and consis-
tent with MOORE (1964), we con-
sider lc vartschtiand 5. guzonus
junior synonyms of S. infracarina-
tus.
In reference to S. infracarinatus,
MOORE (1964) stated: “No other
Solariobis in the western Atlantic
has the combination of low round
spure, rearal waves on the first
whorl and spiral sculpture which is
not visible from above”. We agree
with this diagnosis.
Solariorbis mooreanus (Vanatta, 1904) (Figures 78A-F)
Vitrinella mooreana Vanatta, 1904. Proc. Acad. Nat. Sic. Philadelphia, 55: 757, figs. 1-3. [Type
locality: Gulf side of Crooked Island near Panama City, Florida].
Solariorbis bassilisus Pilsbry, 1953. Monographs of Acad. Nat. Sci. Philadelphia, 18: 420, pl. 56,
figs. 4-4c. [Type locality: Pliocene of St. Petersburg, Florida].
Type material: Five syntypes of Vitrinella mooreana in ANSP (84611). Holotype of Solariorbis bassil-
isus deposited in ANSP (18408). Not examined.
Other material examined: Cuba: 3 s, Cienfuegos Bay, 20-30 m (MHNS). Florida, USA: 1 sp, St. Joe
Bay, grass flats (CHL). Brazil: 1 s, Praia de Itararé, Sáo Vicente, Sáo Paulo (CHL); 1 s, off Santos,
Sáo Paulo State, trawled by nets at 100 m (CHL).
Descrip tion: Shell (Figs. 78A-C, 78E-
E) depressed, with six spiral ridges on
dorsal of the shell. The peripheral cord
is very prominent, like a keel. Base
smooth, umbilicus narrow and deep.
The protoconch (Fig. 78D) is projected
over the teleoconch, with 2 spiral
whorls, smooth and with about 350 um
in maximum diameter. The teleoconch
has two spiral whorls; the periphery is
keeled by a peripheral cord, sharp and
prominent, and strong cords on the
dorsum. Ornamentation formed by
punctiform sulcus, dorsally as well as
ventrally. Base slightly concave. Aper-
ture rounded, without canal on the
upper internal angle. Columella thick-
ened, with an expansion which from the
internal lip is reflected outward forming
a small triangular callus which closes
the umbilicus gradually.
Dimensions: Holotype of Vitrinella
mooreana is 1.08 mm in diameter and
1.2 mm of height. There are records up
to 2.75 mm. Holotype of Solariorbis
basilissus is 2.4 mm in diameter and
1.25 mm in height.
Animal and radula unknown.
Habitat: The species has been found
in a shell grit bottom at 9 m. According
to MOORE (1964) it occurs on sandy
bottoms in turbid waters.
Distribution: Recorded from Gulf
side of Crooked Island near Panama
City, Florida (VANATTA, 1904); from Mis-
sisippi (ANDREWS, 1977); from East and
West Florida (Lyons, 1998); from Texas
(ODÉ, 1988a); from Florida, Texas, north-
143
Iberus, 29 (2), 2011
Figures 78A-E. Solariorbis mooreanus (Vanatta, 1904). A-C: shell, 1.9 mm, Cienfuegos Bay
(MHNS); D: protoconch; E-F: shell, 2.6 mm, Itararé, Sao Vicente, Brazil (CHL).
Figuras 78A-E Solariorbis mooreanus (Vanatía, 1904). A-C: concha, 1,9 mm, Bahía de Cienfuegos
(MHNS); D: protoconcha; E-F: concha, 2,6 mm, Itararé, Sáo Vicente, Brasil (CHL).
east Brazil, and Abrolhos Islands (Rios,
1994). Also from Cienfuegos, Cuba.
Remarks: This species is also
known as a fossil. Solariorbis moore-
anus is different from the congeneric
species by the spiral cords which cover
the dorsum of the shell, the sharp and
144
prominent peripheral cord which
forms a keel around the shell, the
spiral sulcus with punctiform incisions
which cover the interspaces between
the cords, and the triangular callus
originating at the internal lip, which
impinges on the umbilicus as it grows.
RUBIO ET 4L.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Solariorbis multistriatus (A.E. Verrill, 1884) (Figs. 79A-I)
Ethalia multistriata A.E. Verrill, 1884. Trans. Connect. Acad. Arts and Sci, 6: 242-243. [Type local-
ity: Albatross sta. 2109, off Cape Hatteras, North Carolina].
Type material: Lectotype in USNM (35733). Not examined.
Other material examined: Cuba: 5 s, Cienfuegos Bay, 20 m (MHNS); 2 s, Rancho Luna Beach, 20 m
(MHNS).
Description: Shell (Figs. 79A-E)
strong, spire a little elevated, formed
by 3 Y whorls. Protoconch (Figs. 79G-
[) relatively large, bulbous, measuring
about 480 um and with a little more
than one whorl; two stages are distin-
guised, the first one with a rough
surface and the second with an
evident reticulation and between one
and seven strong varices on its dorsal
aspect. Teleoconch with 2 Y whorls,
totally covered by spiral cords of
similar size, more than 50 on the body
whorl. Between the cords there are
spiral punctiform sulci (Fig. 79F)
formed by the intersections with axial
ribs. The pitting is more evident on
the first whorl of the teleoconch, being
barely detectable on the body whorl.
Due to the thickening of the umbilical
margin a characteristic triangular
callus is formed and a gradual closing
of the umbilicus is produced.
Dimensions: Lectotype 1.59 mm in
diameter. The larger shell figured is
3.1 mm of maximum diameter.
Animal and radula are unknown.
Habitat: Species with a large
bathymetric distribution, recorded
between 5 and 312 m deep. Our shells
were collected on coralline sandy
bottom at 20 m. The type material was
obtained at 142 fms (312 m).
Distribution: Recorded off Cape
Hatteras (A.E. VERRILL, 1884); from
Cuba: North Havana Province
(AGUAYO é JAUME, 1936); North Car-
olina to West Indies (ABBOTT, 1974);
from Bocas Island, Panama (OLssoN éz
MCGINTY, 1958); from the Yucatan
Peninsula, Mexico (VOKES € VOKES,
1984); from the northeast Gulf of
Mexico (PARKER 6 CURRAY, 1956);
from Cape Lookout, North Carolina
(MOORE, 1964); from Laguna de
Termino, Campeche, Mexico (GARCÍA-
CUBAS, 1982); from Puerto Rico and
the Lesser Antilles (WARMKE €
ABBOTT, 1961); from Guyana (PRINCZ,
1977); from Venezuela (Princz, 1982).
Also Cienfuegos, Cuba.
Remarks: S. multistriatus was
described by A.E. VERRILL (1884) from
a juvenile specimen, which had not
yet developed all the adult concholog-
ical characters, and perhaps for this
reason he placed the species in the
genus Ethalia. BusH (1897) placed the
species in Vitrinella due to the appar-
ent similarity of its shell to V. heli-
coidea, type species of that genus.
MOORE (1964) moved it to Solariorbis
after studying an adult specimen
showing the thickening of the umbili-
cal wall and pitted sulcus. He also
mentioned that S. multistriatus is
similar to S. terminalis, from which it
can be differentiated by its smaller
size, its higher spire and smaller
umbilical callus.
In our opinion the number and
regularity of the spiral cords and the
triangular callus are the main distin-
guishing characters of this species.
Solariorbis truncatus (Gabb, 1881) (Figures 80A-C)
Vitrinella truncata Gabb, 1881. Journ. Ac. Nat. Sci.: 367, pl. 47, fig. 65. [Type locality: Limon,
Costa Rica, Miocene].
Solariorbis corylus Olsson £ McGinty, 1958. Bulletins of American Paleontology, 39: 28, pl. 3,
figs. 4-4b. [Type locality: Bocas Island, Panama].
145
Iberus, 29 (2), 2011
Figures 79A-1. Solariorbis multistriatus (A.E. Verrill, 1884). A-E: shells, 2.5, 2.6, 3.1, 2.56, 2.85
mm, Cienfuegos Bay; F: microsculpture; G-Í: protoconchs.
Figuras 79A-1. Solariorbis multistriatus (4.E. Verrill, 1884). A-E: conchas, 2,5, 2,6, 3,1, 2,56, 2,85
mm, Bahía de Cienfuegos; E: microescultura; G-Í: protoconchas.
Type material: V. truncata: Type in ANSP (3107). Holotype of S. corylus (ANSP 211909) and a
paratype in ANSP (211910). Not examined.
Other material examined: 1 s, Portobello, Panama (CHL).
146
RUBIO ET ALz.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 80A-C. Solariorbis truncatus (Gabb, 1881). A-B: shell, 1.66 mm, Portobello, Panama
(CHL); C: protoconch.
Figuras 80A-C. Solariorbis truncatus (Gabb, 1881). A-B: concha, 1,66 mm, Portobello, Panamá
(CHL); C: protoconcha.
Description: Shell (Figs. 80A-B)
small, white or glassy, with a
strongly flattened, depressed spire
bounded by a ridged shoulder, the
profile of the body whorl below the
shoulder being wider and evenly
convex. Protoconch (Fig. 80C) with 1
(ROBINSON é MONTOYA, 1987;
ROBINSON, 1991). From Colón and
Colón and Bocas Island, Panama
(OLSSON é MCGINTY, 1958). From
southeastern Panama (RADWIN,
1969). From Panama and Colombia
(DÍAZ MERLANO $ PUYANA
14 whorls.
Maximum reported size: 2.4 mm
Habitat: Sandy bottom (DÍAZ
MERLANO 6 PUYANA HEGEDUS, 1994).
Distribution: Recorded from the
HEGEDUS, 1994).
Remarks: OLSssON é MCGINTY
(1958) stated: “Similar to S. contracta
(Vanatta) from Monkey River, Hon-
duras but lacks the central or periph-
Pleistocene, Moín, Costa Rica eral keel and has a higher shell”.
Solariorbis schumoi (Vanatta, 1913) (Figs. 81 A-D)
Teinostoma schumoi Vanatta, 1913. Proc. Acad. Nat. Sci. Philadelphia, 65: 25-26, pl. 2, figs. 5, 10.
[Type locality: Porto Barrios and Livingston, Guatemala].
Type material: Holotype in ANSP (73483) figured by VANATTA (1913). Not examined. Best repre-
sentations in ALTENA (1966: 240-241, figs. 6a-e) and ALTENA (1975: figs. 11a-c).
Other material examined: Guatemala: 2 s, Livingston, 3-4 m (MHNS). Brazil: 1 s, Praia Itararé, Sáo
Vicente, Sáo Paulo, drift (CHL).
147
Iberus, 29 (2), 2011
Figures 8lA-D. Solariorbis schumoi (Vanatta, 1913). A-B: shells, 0.8, 1.1 mm, Livingston,
Guatemala (MHNS). C-D: shell, 1.8 mm, Praia Itararé, Sáo Vicente, Brazil (CHL).
Figuras 8LA-D. Solariorbis schumoi (Vanatta, 1913). A-B: conchas, 0,8, 1,1 mm, Livingston, Guate-
mala (MHNS). C-D: concha, 1,8 mm, Praia ltararé, Sáo Vicente, Brasil (CHL).
Description: Shell (Figs. 81A-D)
small, imperforate in adult individu-
als, white, very compact, suture
marked, rounded periphery, with
undulant profile due to the spiral
cords; the penultimate whorl exhibits a
spiral sulcus near the suture. Proto-
conch of nearly 1 % whorls and about
340 um in diameter. Teleoconch with 2
YM whorls, with an ornamentation
formed by strong spiral cords and fine
spiral threads, strong axial ribs, and
148
fine axial striae; the spaces between the
cords are convex and are crossed by a
fine axial striation. On the dorsum
there is a strong nodulous cord pro-
duced by the intersection with axial
ribs, the latter progressively more
evident as the shell grows. There are 5-
7 spiral cords on the periphery. Near
the periphery of the base there are two
spiral cords. Strong growth folds
extend from the basal cords towards
the inner part of the umbilicus. Aper-
RUBIO £T AZz.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
ture suborbicular; external lip sharp,
parietal area wide. Columella and
inner lip. are reflected .outward,
forming a wide callus which increases
the umbilical wall and may close
totally the umbilicus in adult shells.
This character is fundamental in the
placement of the related species, T.
hondurasensis, in Solariorbis.
The holotype measures 2.23 mm in
diameter and 1.51 mm in height. The
largest shell figured measures 1.2 mm
in diameter and 0.71 mm in height,
and it is a non-adult individual.
Habitat: It lives in shallow water at
about 2 meters depth.
Distribution: Known from Guate-
mala (WANATTA 19138) Costa Rica,
Panama and Colombia (CoseEL, 1986);
ABC Islands: Aruba (DE JONG é
COOMANS, 1988); Brazil: Pernambuco,
Sáo Paulo (MELLO € PERRIER, 1986);
Moin, Costa Rica (ROBINSON éz
MONTOYA, 1987); Surinam (ALTENA,
1966)
Remarks: This species was originally
included in the genus Teinostoma.
MOORE (1964) placed them in Solari-
orbis on the basis of the enlarge-
ment of the umbilical wall and the
pitted spiral sulcus in the original
feuresiot 1. schuniol andsI. hon-
durasensis. T. schumoi may be dif-
ferentiated from T. solidum Smith
by the sculpture on the dorsum;
from S. hondurasensis Vanatta, 1913
it may be differentiated by having
more spiral cords and being umbili-
cated as juvenile and imperforate,
or nearly so, as an adult.
Solariorbis semipunctus Moore, 1965 (Figures 82A-D)
Solariorbis semipunctus Moore, 1965. The Nautilus, 78: 77-78, pl. 8, figs. 1-3. [Type locality:
Northwest Campeche Bank, Mexico].
Type material: Holotype in USNM (636309) figured by MOORE (1965). Not examined. Best repre-
sentation in FABER (2007).
Other material examined: Cuba: 3 s, Rancho Luna Beach, 20 m (MHNS); 2 s, Cienfuegos Bay, 20-
30 m (MHNS).
Description: Shell (Figs. 82A-C)
strongly depressed, 3 Y whorls, spiral
sculpture punctiform with a rounded
periphery and umbilicus sealed by
callus. Protoconch (Fig. 82D) smooth
with nearly 1 Y whorls and about 200
um in diameter. Teleoconch of about 1
% whorls; fine spiral punctiform
cordlets cover the whole surface. In
the middle of the dorsum and after
the first Y whorl, the shell is keeled.
The umbilicus of the adult shells is
totally occluded by the columellar
callus, which, in the form of a fine
callous surface, also covers the
cordlets close to the umbilicus. Base
somewhat convex.
Dimensions: Holotype 0.93 mm in
diameter and 0.4 mm of height. The
material studied and figured is 1.4
and 1.6 mm in diameter and 0.6 mm
in height.
Animal and radula unknown.
Habitat: The species lives on a
muddy bottom at 18 m deep
(MOORE, 1965). Our samples are
from sediments collected on a
coralline bottom between 25 and 50
mA:
Distribution: Recorded from
Yucatan State, Mexico and Haiti
(MOORE, 1965); from Campeche
Bank, Mexico (18 m) and Haiti
(ABBOTT, 1974); from East and West
Florida (Lyons, 1998); from Florida:
Virginia Key and Schottegat,
Curacao (FABER, 2007) and from
Cuba: Cienfuegos.
Remarks: S. semipunctus may be
distinguished from its congeners by
the strongly depressed spire, dorsal
keel, and the umbilicus being totally
occluded by the callus formed from
the inner lip.
149
Iberus, 29 (2), 2011
Figures 82A-D. Solariorbis semipunctus Moore, 1965. A-C: shells, 1.4, 1.6, 1.3 mm, Rancho Luna
Beach (MHNS); D: protoconch.
Figuras 82A-D. Solariorbis semipunctus Moore, 1965. A-C: conchas, 1,4, 1,6, 1,3 mm, Playa
Rancho Luna (MANS); D: protoconcha.
Solariorbis terminalis (Pilsbry £ McGinty, 1946) (Figures 83A-E, 84A-F)
Vitrinella terminalis Pilsbry £ McGinty, 1946. The Nautilus, 60: 17, pl. 2, fig. 5-5a. [Type locality:
Destin, northwestern Florida].
Type material: Type species in ANSP (181883). Not examined.
Material examined: Florida, USA: 1 s, Tarpon Springs, Pinellas Co., dredged S of Anclote Key, in
3.5-6 m (CMK); 2 s, 3018.13'N 81%06.91'W, 24 m, off Mayport, Duval Co. (CHL); 1 s, off Fort Myers
Beach, Lee Co., trawled 20 m (CHL); 2 s, 50-60 mi E Ponte Vedra, St. Johns Co., trawled at 39-45 m
(CHD); 1 s, 10 mi SW Seahorse Key, Cedar Keys, Levy Co., trawled at 18 m (CHL); 1 s, St. Augus-
tine, St. Johns Co., tailings scallop processing plant (CHL); 2 s, drift, Jacksonville Beach, Duval Co.
(CHL).
Description: From the original
description (PILSBRY €£ MCGINTY, 1946)
we have copied some paragraphs which
express important characters of the
species: “There are 4 Y convex whorls
joined by a rather strongly impressed
suture. Last whorl is rounded at periph-
ery and base. Sculpture of a few very
weak but coarse spirals in the peripheral
region: Mer columellaimarinis
extremely thick, reflected over part of
the umbilicus”.
150
The low conic shell (Fig. 83A-C, 84A-C)
is relatively thick and heavy, and has a very
small constricted umbilicus. Protoconch of
2 smooth glassy whorls. Teleoconch has
two whorls. The spire is elevated and
allows all the whorls to be seen in apertural
view. Suture impressed. The sculpture con-
sists Of several low spiral threads on the
peripheral area. The base is broad and
smooth except for spiral sculpture on the
outer part. Aperture circular; columella
thick and heavy (MOORE, 1965: 117-118).
RUBIO £7 AL.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 83A-E. Solariorbis terminalis (Pilsbry 82 McGinty, 1946). A-D: shell, 1.7 mm, Tarpon
Spring, Pinellas Co. (CMK); D: protoconch eroded; E: detail of the spire.
Figuras 83A-E. Solariorbis terminalis (Pilsbry 8 McGinty, 1946). A-D: concha, 1,7 mm, Tarpon
Spring, Pinellas Co. (CMK); D: protoconcha erosionada; E: detalle de la espira.
151
Iberus, 29 (2), 2011
Figures 84A-E Solariorbis terminalis (Pilsbry 8 McGinty, 1946). A: shell, 2.5 mm, off Fort Myers
Beach, Lea Co. (CHL); B-C: shells, 2.3, 1.1 mm, off Mayport, Duval Co. Florida, 20 m (CHL); D-
E: shells, 1.9, 1.8 mm, 50-60 mi E Ponte Vedra, St. Johns Co. (CHL); F: protoconch.
Figuras 84A-E Solariorbis terminalis (Pilsbry e McGinty, 1946). A: concha, 2,5 mm, frente a Fort
Myers Beach, Lea Co. (CHL); B-C: conchas, 2,3, 1,1 mm, off Mayport, Duval Co. Florida, 20 m
(CHL); D-E: conchas, 1,9, 1,8 mm, 50-60 millas al E de Ponte Vedra, St. Johns Co. (CHL); E: protocon-
We add the following: The proto-
conch (Figs. 83D, 84F) has about 2
whorls, is smooth, and measures about
350 um in diameter, lacking any thicken-
ing in the transition to the teleoconch.
The teleoconch is dorsally smooth,
having a marked suture developing into
a sulcus which progressively enlarges
1132
until the middle part of the body whorl,
thence forming a subsutural cord on the
final quarter whorl. On the periphery of
the last whorl 3-4 spiral cords can be
seen. Columella wide, reflected towards
the umbilicus, thickening the umbilical
wall and subtotally closing the umbili-
cus. Internal lip reflected outward.
RUBIO £7 4£.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Within the umbilicus there are 2-3 fine
spiral cordlets.
Dimensions: Maximum reported
size: 2.4 mm
Habitat: This species lives on sandy
bottom in depths between 18 and 35 m.
Distribution: USA: North Carolina
(PORTER, 1974), West Florida (PILSBRY
é MCGINTY, 1946b; MOORE, 1964);
Panama (OLsson € MCGINTY, 1958).
MOORE (1964) considered the distribu-
tion of the species to be very limited,
being restricted to northwestern
Florida, but he did not consider the
record Of OLSSON € MCGINTY (1958)
from Panama. ODÉ's (1973b) record
from the northwest Gulf of Mexico,
-must be confirmed, because he himself
(ODÉ, 1988) did not again record this
species.
Remarks: PiLSBRY € MCGINTY (1946:
17) stated: “The conic spire has more
whorls and a deeper suture than in
typical Vitrinellidae, and the columella
is very heavily callused. The umbilicus
is quite small up to the last half whorl of
the umbilical suture, when it becomes
rapidly much wider”. In our opinion,
the subsutural sulcus on the last whorl,
the peripheral cords, and the lack of
dorsal and basal ornamentation, with
the exception of the thickened umbilical
margin, are the distinguishing charac-
ters of the species.
Vitrinella diaphana (d'Orbigny,
1842) could be this species, but the type
material is in such poor condition that
this cannot be ascertained (see Fig.
108G). It should be considered, there-
fore, a nomen dubium.
Solariorbis ruris spec. nov. (Figures 85A-J)
Type material: Holotype (Fig. 85A) in MNCN (15.05/55058) and 1 paratype (Fig. 85B), from type
locality, at -20 m (15.05/55059). Other paratypes: MHNS (100551, 1 s, Fig. 85C), at -20 m; MNHN
(24397, 1 s, Figs. 85D-E), at -45 m.
Other material examined: Martinique: 1 s, (CJP) (Figs. 85F-G).
Type locality: Rancho Luna Beach, 20 m, Cienfuegos, Cuba.
Etymology: The specific name is derived from the Latin third declension noun rus, ruris, meaning
“of the farm; rural” in reference to its surface, in some areas with parallel lines, as in the surface of
a plowed field.
Description: Shell (Figs. 85E-G) of
small size, depressed, solid, 4 whorls,
with characteristic spiral threads and
punctiform grooves. Protoconch
(Figs. 85H) of about 2 whorls, mea-
suring about 290 um in diameter; its
surface is covered by fine tubercles; a
delicate varix is observed. Teleoconch
of about 2 rapidly-increasing whorls;
dorsally and ventrally convex; totally
covered by spiral cordlets and pune-
tiform incisions in the interspaces,
forming the characteristic reticular
punctiform sculpture. In the dorsal
area of the last whorl, between the
suture and the periphery, a central
zone without spiral microsculpture
can be observed; a similar area can be
seen close to the umbilicus on the
base of the last Y whorl. Axial orna-
mentation consists of growth striae.
Base slightly convex, umbilicus
small, progresively occluded by the
columellar callus. Aperture rounded,
prosocline, external lip sharp, col-
umellar margin and internal lip
thickened, reflected towards the
umbilicus forming a characteristic tri-
angular callus.
Dimensions: Holotype 1.50 mm in
diameter and 0.57 mm in height.
Animal unknown.
Habitat: The species has been
found on a coralline sandy bottom,
sometimes with a little mud, at 45 m.
Distribution: Only known from
Cuba and Martinique.
Remarks: Solariorbis ruris spec.
nov. has a sculpture formed by spiral
cordlets with punctiform incisions in
the interspaces which covers all the
shell except for a short band without
153
Iberus, 29 (2), 2011
Figures 85A-J. Solariorbis ruris spec. nov. A: holotype, 1.3 mm, Rancho Luna Beach (MNCN); B:
paratype, 1.4 mm (MNCN); C: paratype, 1.3 mm (MHNS); D-E: paratype, 1.3 mm (MNHN);
E-G: shell, 1.5 mm, Martinique (CJP); H-I: protoconchs; H: from the shell of Fig. G; 1: from the
holotype Fig. A; J: detail of the base (paratype Fig. B).
Figuras 85A-J. Solariorbis ruris spec. nov. A: holotipo, 1,3 mm, Playa Rancho Luna (MNCN); Bb:
paratipo, 1,4 mm (MNCN); C: paratipo, 1,3 mm (MANS); D-E: paratipo 1,3 mm, (MNAN); F-G:
concha, 1,5 mm, Martinica (C]P); H-I: protoconchas; H: de la concha de la Fig. G; 1: del holotipo Fig.
A; J: detalle de la base (paratipo Fig. B).
154
RUBIO E7 42.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
spiral microsculpture on the dorsum
and base of the last whorl. It also
possesses a triangular columellar
callus.
Solariorbis terminalis is the only
species with somewhat similar orna-
mentation, but the cords cover only
the dorsum of the shell and are wider
and less numerous.
From Solariorbis lineopunctatus
(see below) it may be distinguished
by the fewer, thicker and spiral
cordlets.
From Solariorbis sp. (see below) it
may be differentiated by its rounded
convex periphery and the sulcus with
punctiform incisions instead of quad-
rangular hollows.
Solariorbis lineopunctatus spec. nov. (Figures 86A-D)
Type material: Holotype (Figs. 86A-B) in MNCN (15.05/55056) and one paratype in MNCN
(15.05/55057).
Type locality: Cienfuegos Bay, sta. 12, 22007'N 80%27'W, 9 m, Cuba.
Etymology: The specific name refers to the punctiform sculpture aligned spirally which totally
covers the shell.
Description: Shell (Figs. 86A-B) of
very small size, not very depressed,
apparently not very solid; spire
formed by three rapidly-increasing
whorls, sligtly angled at the periph-
ery, not keeled. Protoconch (Figs. 86C)
of about 2 whorls, measuring about
400 um in diameter, being placed on a
plane slightly above the subsequent
whorls and with its surface covered
by small tubercles and very fine spiral
threads. [In some places these form a
fine reticule. Teleoconch with a little
more than 1 rapidly-increasing whorl;
convex dorsally as well as on the base,
periphery angled; surface totally
covered by punctiform incisions spi-
rally aligned except inside the umbili-
cus, where only numerous growth
marks are appreciated. Aperture
rounded, without a sulcus in the inner
upper angle. Outer lip sharp. Col-
umella and inner lip thickened and
reflected outward. Umbilicus rela-
tively wide and deep, without evident
ornamentation except for the axial
growth marks.
Dimensions: Holotype 1.05 mm in
diameter, and 0.36 mm in height.
Animal unknown.
Habitat: The species was found in
depths between 10 and 60 m, on
coralline and slightly muddy bottoms.
Distribution: Only know from
Cuba.
Remarks: The shell of Solariorbis
lineopunctatus spec. nov. is not very
strong, with a fragile aspect, reddish
color, and dull in luster. Its teleo-
conch, totally covered with spirally-
aligned punctiform incisions makes it
easily recognizable and distinguishes
it from its congeners. Its ornamenta-
tion is rather similar to that present in
some species of the genus Teinostoma
(T. goniogyrus, T. lenticulare), but the
wide umbilicus and the thickening of
the umbilical border are distinctive.
Solariorbis sp. (Figures 86E-F)
Material studied: One shell (Figs. 86E) off Dominica, 200 m, in detritus obtained from inside sub-
merged bottles (lost during the study).
Description: Shell (Fig. 86E) tro-
choid, solid, not very depressed, of dirty
white color. Protoconch with about 2
spiral whorls on a little higher plane
than the later whorls. Teleoconch
formed by about 2 whorls totally
SS
Iberus, 29 (2), 2011
Figures 86A-D. Solariorbis lineopunctatus spec. nov. A-B: holotype, 1.05 mm, Cienfuegos Bay
(MNCN); C: protoconch; D: microsculpture. Figures 86E-E. Solariorbis sp. E: shell, 1.47 mm, off
Dominica; F: microsculpture.
Figuras 86A-D. Solariorbis lineopunctatus spec. nov. A-B: holotipo, 1,05 mm, Bahía de Cienfuegos
(MNCN); C: protoconcha; D: microescultura. Figuras 86É-E Solariorbis sp. E: concha, 1,47 mm,
frente a Dominica; FE: microescultura.
56
RUBIO ET 4L£.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
covered by spiral cords of equal size
and axial sulci forming quadrangular
spaces. Periphery only slighty convex,
almost straight; a spiral cord in the
dorsal extreme and another in the
basal part form the limits and create
slight angulations. Base slightly
concave in its central part. Umbilicus
small, almost occluded by a callus
formed from a thickening of the col-
umella. Aperture rounded, the supe-
rior angle with a sulcus; parietal area
straight and thickened, external lip
sharp. Columella widened and
reflected towards the external part
forming a characteristic callus.
Dimensions: The shell is 1.47 mm
in diameter and 0.76 mm in height.
Animal unknown
Habitat: The only specimen known
was collected in the shell grit found
inside one of a few bottles found at
200 m.
Distribution: Only known from
the island of Dominica.
Remarks: The present shell may
be distinguished from its congeners
by its sculpture of spiral cordlets
and cuadrangular hollows covering
the shell, by the wide callus formed
by the thickening of the columella,
and principally by the dorsal and
basal cords which angulate the
periphery, giving it an almost
straight profile. S. lineopunctatus n.
sp. has narrower, more numerous
spiral cords and the sulcus has punce-
tiform incisions. From S. ruris n. sp.
it can be separated by the latter
having the smooth zones on the
body whorl and its smaller, triangu-
lar columellar.
Unfortunately this shell was lost
during the study, and we decided
not to name this species until new
material can be collected.
Solariorbis punctostriatus spec. nov. Rubio, Rolán € Lee (Figures 87A-E)
Type material: Holotype (Figs. 87A-B) deposited in FLMNH (448610)(ex CHL). One paratype from
the type locality (CHL). Another paratype in USNM (1155036, 1 s, ex CHL, from Courland Bay,
Tobago).
Type locality: Isla Margarita, Venezuela.
Etymology: The specific name refers to its microsculpture formed by spiral striae with punctiform
depressions.
Description: Shell (Figs. 87A-D)
solid, depressed, about equally convex
above and below, with rounded periph-
ery and spiral striae throughout. Proto-
conch of about 1 Y whorls, not project-
ing upward. Teleoconch of about 2
whorls, totally covered by spiral cords,
in interspaces of which axial striae can
be seen, forming characterístic small
hollows. Rounded periphery. Aperture
rounded, slightly prosocline, external lip
a little thickened, columella thickened
and reflected outward forming a small
callus. Umbilical area concave. Umbili-
cus almost closed by the thickening of
the umbilical margin.
Dimensions: Holotype 1.39 mm in
diameter and 0.63 mm height. One
paratype with about 1.4 mm in
maximum dimension.
Habitat: Unknown, the material
was collected in sediments.
Distribution: Only known from
Isla Margarita, Venezuela, its type
locality, and Courland Bay, Tobago.
Remarks: Solariorbis punctostria-
tus spec. nov. has a shell very similar
in general appearance to that of V.
cupidinensis, from which it can be
distinguished by having the umbili-
cus practically closed, almost reduced
to a fissure, and by the columellar
callus which thickens the umbilical
wall and closes the umbilicus. Also it
is similar to some Teinostoma species,
from which it can be distinguished by
the typical occlusion of the umbilicus
by the thickening of the columella
and by its typical Solariorbis sculp-
ture.
LSZ
Iberus, 29 (2), 2011
Figures 87A-E. Solariorbis punctostriatus spec. nov. Rubio, Rolán 8 Lee. A-B: holotype, 1.4 mm,
Isla Margarita, Venezuela (FLMNH); C: paratype, 1.4 mm, from type locality (CHL); D:
paratype, 1.2 mm, Tobago (USNM); E: detail of the ornamentation.
Figuras 87A-E. Solariorbis punctostriatus spec. nov. Rubio, Rolán «* Lee. A-B: holotipo, 1,4 mm, Isla
Margarita, Venezuela (FLMNA); C: paratipo, 1,4 mm, de la localidad tipo (CHL); D: paratipo, 1,2
mm, Tobago (USNM); E: detalle de la ornamentación.
158
RUBIO ET 42.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
“Solariorbis” solidus spec. nov. (Figures 88A-F, 89A-F)
Type material: Holotype (Fig. 88A) in MNCN (15.05 /55060). Paratypes: MNHN (24398, 1 s, Fig.
88B), NHAMUK (1 s, Figs. 88E, 89A), MCZ (1 s, Figs. 89B-C), USNM (1155037, 1 s, Fig. 89E), all from
type locality; AMNH (1 s, Fig. 88C) Cayo Diego Perez, Canarreos Archipelago, 20 m, Cuba; MHNS
(100552, 1 s, Fig. 88D) Cienfuegos, 20-30 m.
Other material examined: Cuba: 3 s, Canarreos (MHNS). Florida, USA: 1 s, Little Madeira Bay. Ever-
glades N.P. Florida, Monroe Co., low tide (CHL).
Type locality: Rancho Luna Beach, Cienfuegos, 20-45 m, Cuba.
Etymology: The specific name refers to the solidity of the shell, more observable in the contour of
the aperture.
Description: Shell (Figs. 88A-E,
89A-F) trochoid, solid, yellowish
white, polished and shiny. Proto-
conch (Fig. 88F) broad and flat,
slightly projecting, with about 1 Y
whorls, 410 um in diameter, and
without sculpture. Teleoconch of
about 1 Y. rapidly-increasing
whorls; dorsally and ventrally
convex. The shell is generally
smooth and without sculpture
except for weak axial growth lines,
which in some specimens are much
more rough and sharp, and faint
spiral cords on the basal periphery.
Aperture oval, outer lip thick, col-
umellar margin thickened and
reflected outward. Umbilicus wide
and deep, inside there is a thick
cord formed by a thickening of the
columella, which surrounds and
limits the umbilical infundibulum.
Dimensions: Holotype 1.3 mm in
diameter, but there is a paratype 1.8
mm in diameter.
Animal unknown.
Habitat: This species has been
collected between 5 and 45 m, on a
coralline sand bottom.
Distribution: Only known from
Cuba and Florida, USA.
about it being a marine species.
Therefore its generic placement in
Solariorbis, and even in Tornidae, is
provisional. We made a comparison
with a paratype of Paludinella heli-
coides “Gundlach” 1865 (MCZ), and
our impresion is that the latter is
not as solid. The dearth of concho-
logical characters makes a proper
comparison difficult. Paludinella
helicoides is a species of fresh water
hydrobiid considered endemic to
Cuba, but due to its seldom being
collected it has been recorded only
a few times. Anyway, in our mater-
ial there are other shells, collected
in areas as distant as Cuba and
Florida. We keep its provisional
description while awaiting more
material.
Although the overall appearance
of the shell, wide umbilicus and
aperture, predisposes us to place it
in Vitrinella, the columellar thicken-
ing and the thickening of the umbil-
ical wall are typical characters of
the genus Solariorbis.
Solariorbis solidus spec. nov.
differs from provisional congeneric
species by a trochoid form, its wide
umbilicus, the lack of ornamenta-
tion on the teleoconch, and its
solidity in spite of its fragile
appearance.
Remarks: We are not totally sure
that this species is a tornid, not
even having complete security
Genus Vitrinella C.B. Adams, 1850
Vitrinella C.B. Adams, 1850. Monograph of Vitrinella, a new genus of species of Turbinidae. 10
p. Amherst Massachusetts.
Type species: (by original designation) Vitrinella helicoidea C.B. Adams, 1850 (by subsequent
designation: Bush, 1897: 105. Caribbean, Recent.
15%
Iberus, 29 (2), 2011
Figures 88A-F. *Solariorbis” solidus spec. nov. A: holotype, 1.3 mm, Rancho Luna Beach, Cuba
(MNCN); B: paratype, 1.08 mm, Rancho Luna Beach (MNHN); C: paratype, 1.14 mm,
Canarreos, Cuba (AMNH); D: paratype, 1.08 mm, Cienfuegos Bay (MHNS); E: paratype, 1.6
mm, Rancho Luna Beach (NHMUK); FE: protoconch of the holotype.
Figuras 88A-E “Solariorbis” solidus spec. nov. A: holotipo, 1,3 mm, Playa Rancho Luna, Cuba
(MNCN); B: paratipo, 1,08 mm, Playa Rancho Luna (MNHN); C: paratipo, 1,14 mm, Canarreos,
Cuba (AMNH); D: paratipo, 1,08 mm, Babía de Cienfuegos (MHNS); E: paratipo, 1,6 mm, Playa
Rancho Luna (NHMUK); F: protoconcha del holotipo.
160
RUBIO ET ALz.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 89A-E. “Solariorbis” solidus spec. nov. A: paratype, 1.6 mm, Rancho Luna Beach
(NHMUK); B-C: paratype, 1.17 mm, Rancho Luna Beach (MCZ); D-E: shells, 1.2 mm, Cien-
fuegos Bay; F: paratype, 1.8 mm, Rancho Luna Beach (USNM).
Figuras 89A-E “Solariorbis” solidus spec. nov. A: paratipo, 1,6 mm, Playa Rancho Luna (NHMU,
B-C: paratipo, 1,17 mm, Playa Rancho Luna (MCZ); D-E: conchas, 1,2 mm, Bahía de Cienfuegos,
paratipo, 1,8 mm, Playa Rancho Luna (USNM)..
Iberus, 29 (2), 2011
Diagnosis: Shell small, fine, smooth
or weakly sculptured, low spire and
open, deep umbilicus. Aperture
rounded and only slightly modified by
the previous whorl. Parietal callus
usually thin. Animal provided with a
pair of ciliated cephalic tentacles, a pair
of epipodial tentacles, and a circular
multispiral operculum. Radula tae-
nioglossate.
Remarks: C.B. ADAMS (1850) insti-
tuted a new genus Vitrinella for five
new species of micromolluscs found in
beach sand from Jamaica. No type
species was selected and none of the
species was figured. BusH (1897)
designed Vitrinella helicoidea as the
type species of the genus, describing
this species again and figuring it for first
time.
Vitrinella anneliesae de Jong € Coomans, 1988 (Figures 90A-I)
Vitrinella anneliesae de Jong € Coomans, 1988. Marine gastropods from Curacao, Aruba and
Bonaire: 31, pl. 2, fig. 131. [Type locality: Curacao].
Type material: Holotype in ZMA (3.87.062). Represented in de JONG £ COOMANS (1988). Notexam-
ined.
Other material examined: Cuba: 10 s, Canarreos Archipelago, 5 m (MHNS); 4 c, Cayo Avalos, 8
m (MHNS); 4 c, Cayo Diego Perez, 15 m (MHNS); 2 c, Faro Diego Perez, 10 m (MHNS); 3 s, Jibacoa,
3-6 m (MHNS); 3 c, Guajimico, 5 m (MHNS); 5 c, Cienfuegos Bay, 20-30 m (MHNS); 2 c, Cien-
fuegos Bay, 30 m (MHNS); 14 s, Rancho Luna Beach, 12 m (MHNS); 37 s, 10-30 m (MHNS); 2 s,
Rancho Luna Beach, 35 m (MHNS); 20 s, Rancho Luna Beach, 45 m (MHNS); 106 s, Rancho Luna
Beach, 5-54 m (MHNS); 7 s, Los Laberintos, Rancho Luna Beach, 35 m (MHNS); 21 c, Faro los
Colorados, 56 m (MHNS); 11 s, Tamarindo Point, 56 m (MHNS). Martinique: 8 c, Pointe Borgnesse,
12 m, muddy sandy bottom near the reef (CJP). Grenadines: Mayreau, 1 c, west coast, 8 m, coralline
sandy bottom with coral blocks, gorgonians, and sponges (CJP). Bahamas: 2 s, 6 m, off N Andros,
dredgeg (CHL); 2 s, Riding Rocks, Cay Sal Bank, 18 m, base coral reef (CHL); 2 s, NW Nassau,
50 ft. Saint Vincent: 1s (CHL). Honduras: 1 s, Roatan Island, 12 m, coralline sand. Puerto Rico:
1 s, NW Puerto Rico (CHL).
Description: The original description
is as follow: “Shell wider than high.
Whorls without a keel. Except for the
nucleus sculptured with fine spiral
threads, which in larger specimens
become hardly visible, or absent at the
periphery of the last whorl. Umbilicus
present”. This is a very short description
for a correct specific determination.
Therefore we are providing a new
description pointing out the most
important distinguishing characters:
Shell (Figs. 90A-F) subconical
depressed, solid, whitish and without
any keel, spire formed by 3 Y convex
whorls, each overlapping most of the
previous whorl. Protoconch (Figs. 90H-
[) about 300 um in diameter and about 1
Y. whorls, with a slightly rough surface
and a strong varix which marks the
beginning of the teleoconch. Teleoconch
of a little more than 2 whorls, totally
covered by fine spiral cordlets which
162
reach from the suture to the umbilical
border. On the dorsum of the body
whorl, the cords diverge somewhat lat-
erally to the growth axis so that new
ones continue to appear at the suture.
One prominent spiral cord limits and
precipitously angulates the umbilical
infundibulum, which is deep and not
very wide. Aperture rounded; columella
robust; inner lip thickened by the cross-
ing of the umbilical cord but without
any callus.
Dimensions: Holotype 1.59 mm in
diameter. We have shells reaching about
25 mm in maximum dimension.
Maximum reported size: 1.7 mm
Habitat: This is one of the most
common species in Cuba. Usually it was
collected between 10 and 56 m, but
sometimes shells have been found in
shallower water.
Distribution: ABC Islands: Curacao
(DE JONG é COOMANS, 1988); Mar-
RUBIO ET AL.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 90A-I. Vitrinella anneliesae de Jong 82 Coomans, 1988. A-F: shells, 2.7, 2.8, 2.1, 2.7, 2.2,
3.1 mm, Cienfuegos, Cuba (MHNS); G: microsculpture of the shell Fig. A; H-I: protoconchs.
Figuras 90A-1. Vitrinella anneliesae de Jong 4 Coomans, 1988. A-F: conchas, 2,7, 2,8, 2,1, 2,7, 2,2,
3,1 mm, Cienfuegos, Cuba (MHNS); G: microescultura de la concha de la Fig. A; H-I: protoconchas.
163
Iberus, 29 (2), 2011
tinique; Mayreau and Cuba: mainly
collected in Cienfuegos Bay, but also in
Canarreos and other areas.
Remarks: Since its original descrip-
tion this species has not been recorded
from any Caribbean locality. It is a very
characteristic species which has only a
little similarity to V. funiculus and V.
contracta. From V. funiculus it may be
distinguished by the smaller umbilicus
and by the smaller and more numerous
spiral cordlets. From V. contracta it
differs in the shape of its spiral
cordlets and because they run parallel
to, rather than obliquely from, the
suture.
Vitrinella contracta (Vanatta, 1913) (Figures 91A-E)
Omalaxis funiculus contractus Vanatta, 1913. Proc. Acad. Nat. Sci. Philadelphia, 65: 25, pl. 2, figs.
4, 6. [Type locality: Monkey River, British Honduras].
Type material: Represented in VANATTA (1913) and deposited in ANSP (106.125). Not examined.
Other material examined: Cuba: 14 s, Rancho Luna Beach, 45 m (MHNS). Trinidad and Tobago:
Tobago, 2 c, Horse Shoe Reef, 15 m, shell grit (CJP). Bahamas: 5 s, Olympus Reef, NNW West End,
Grand Bahama Island, 36 m, coralline algal fragments bottom (CHL); 4 s, French Bay, San Salvador,
18 m (CHL); 6 s, Grand Bahamas, 7.5 m (CHL). St. Kitts £: Nevis: 4 s, Monkey Shoals, Nevis, 18 m
(CHL). ABC Islands: 1 s, NW Klein Bonaire, Bonaire, 15 m (CHL). St. Vincent: 1 s (CHL). Belize: 4
s, Dead Mans Reef, Turneffe Is., 18 m, sand (CHL). Turks € Caicos: 3 s, French Bay, 18 m (CHL).
Florida, USA: 3 s, APAC Pit, Sarasota, Plio-Pleistocene (CHL).
Description: Shell (Figs. 91A-C).
Protoconch (Fig. 91D) of about 1 Y
smooth whorls, about 200 um in diam-
eter, set in a lower plane than the teleo-
conch. Two different stages can be dis-
tiguished: the embryonic, with barely
14 whorl and the larval with % whorl
and partially covered by the first whorl
of the teleoconch. The entire surface of
the teleoconch is sculptured by spiral
cords which are placed parallel to the
suture (Fig. 91E); there is no puncti-
form sculpture; a more prominent
spiral cord is placed in the middle of
the periphery and gives a keeled
profile to the shell. Base convex,
umbilicus deep and narrow, delimited
by a spiral cord and not closed by the
columellar thickening. Aperture orbic-
ular; columella and inner lip thickened
and reflected outward.
Dimensions: Holotype 1.85 mm in
diameter. We have shells up to about
2.2 mm in maximum dimension.
Animal and radula unknown.
Habitat: Not described due to the
fact that the holotype was found on an
anchor. Our material was collected on
coralline bottom between 25 and 50 m
in depth.
164
Distribution: Known from
Monkey River, British Honduras
(VANATTA, 1913); Tobago; and Cien-
fuegos, Cuba.
Remarks: VANATTA (1913)
described this taxon as a variety of
Omalaxis funiculus Dall, from
which it is distinguished by having
a narrower umbilicus and because
the spiral cords run parallel to the
suture. S. contracta was placed in
the genus Solariorbis due to the
presence oia mala talas
callus formed in the inner lip in the
periumbilical region. We think that
the existence of this small callus is
insufficient indication to consider it
a Solariorbis; instead, due to its
similarity to several species of the
genus Vitrinella, we consider its
placement in this genus more accu-
rate. Vitrinella contracta, as well V.
funiculus and V. anneliesae, have a
similar ornamentation, which is at
the same time different from the
other species included in this
genus: smooth spiral cords, non-
punctiform sulci, strong growth
lines, and a strong periumbilical
carina.
RUBIO ET AL.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 914-E. Vitrinella contracta (Vanatta, 1913). A-C: shells, 2.0, 2.2, 2.0 mm, Rancho Luna
Beach, Cuba. D: protoconch, from shell of Fig. A; E: sculpture.
Figuras 914-E. Vitrinella contracta (Vanatta, 1913). A-C: conchas, 2,0, 2,2, 2,0 mm, Playa Rancho
Luna, Cuba. D: protoconcha, de la concha de la Fig. A; E: escultura.
Vitrinella funiculus (Dall, 1892) (Figures 92A-E)
Teinostoma (Solariorbis) funiculus Dall, 1892. Trans. Wagner Free Inst. Sci. Philadelphia, 3: 417,
pl. 23, fig. 15. [Type locality: Caloosahatchee River, Florida. Described as fossil of the Plio-
Pleistocene].
Type material: Holotype in USNM (112652). Represented in DaLL (1892). Not examined.
Other material examined: Cuba: 4 s, Rancho Luna Beach, 45 m.
Description: Shell (Figs. 92A-D). below that of the teleoconch. Two dis-
Protoconch (Fig. 92E) heterostrophic, of tinct stages can be observed: the embry-
about 1 Y4 smooth whorls, about 230 um onic protoconch with barely Y whorl
in diameter, placed on a plane slightly and the larval one, which has % of
165
Iberus, 29 (2), 2011
100 um
Beach (MHNS); E: protoconch.
Figures 92A-E. Vitrinella funiculus (Dall, 1892
). A-D: shells, 1.6, 1.9, 1.5, 1.8 mm, Rancho Luna
Figuras 92A-E. Vitrinella funiculus (Dall, 1892). A-D: conchas, 1,6, 1,9, 1,5, 1,8 mm, Playa
Rancho Luna (MANS); E: protoconcha.
whorl and is partially covered by the
first teleoconch whorl. In adult speci-
mens there is no peripheral angulation.
The teleoconch has its surface totally
covered by spiral cordlets, which run
obliquely from the suture and are a
little wider on the base near the peri-
umbilical cord. There is no punctiform
ornamentation. Umbilicus very wide,
infundibuliform, exposing the previous
whorls. The umbilical wall, correspond-
ing to the columellar margin, lacks
spiral cords. No columellar callus.
Dimensions: Holotype 1.75 mm in
diameter. We have shells of about 1.9
mm in maximum dimension.
166
Distribution: This species has been
recorded live-collected in Colombia (DÍAZ
MERLANO éz PUYANA HEGEDUS, 1994).
From Cuba, Cienfuegos in present work.
Remarks: DALL (1892) mentions that
V. funiculus is very similar to the juve-
niles of Teinostoma opsitelotus, being dis-
tinguished from this species by the
umbilical characters. V. funiculus is very
similar to V. anneliesae, from which it can
be distinguished by its fewer spiral cords
and wider umbilicus which exposes the
previous whorls. From V. contracta it may
be differentiated by its spiral cordlets
running obliquely, not parallel, to the
suture and by the larger umbilicus.
RUBIO E7 4L.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Vitrinella opsitelotus (Dall, 1892) (Figures 93A-E)
Teinostoma opsitelotus Dall, 1892. Trans. Wagner Free Inst. Sci., 3: 414, pl. 19, figs. 5, 5b. [Type
locality: Plio-Pleistocene of the Caloosahatchee River and Shell Creek, Florida].
Solariorbis opsitelotus (Dall): In PiLsBrRY (1953). Monogr. Acad. Nat. Sci. Philad. 8: 419, pl. 53,
figs. 4-4e.
Type material: Holotype in USNM (113104). Not examined. Specimens figured by PiLsBRY (1953)
deposited in ANSP (18411).
Other material examined: Florida, USA: 7 s, APAC Pit, Sarasota Plio-Pleistocene (CHL).
Description: Original description in
DaLL (1892: 414). Description expanded
in PiLsBRY (1953: 419).
Distribution: Fossil species recorded
from the Pliocene of the Caloosahatchee
River and Shell Creek, Florida (DALL,
1892); from St. Petersburg Pliocene and
Alligator Creek at Acline, Florida
(PILsBRY, 1953).
Remarks: DaLL (1892) placed this
species in the genus Teinostoma men-
tioning in his description that the
umbilicus was “completely filled by a
flattish, somewhat irregular callus,” in
shells which Dall believed to be adult of
T. opsitelotus. PILSBRY (1953) placed it
in Solariorbis mentioning: “That
[imperforate] form is not represented in
the St. Petersburg series of over forty
specimens. Many of them are about
equal in size, and appear to be adult.
This condition may perhaps permit the
suggestion that Dall's form with the
umbilicus filled by a callus is an abnor-
mal or gerontic individual or possibly
another species”.
If the columellar thickening proves
sufficient a a reason to keep it in the
genus Solariorbis, the form and orna-
mentation of the protoconch, together
with the sculpture of the teleoconch and
the umbilicus (which in basal view, is
not closed by the thickening of the
umbilical wall) seem to place this
species close to the Vitrinella
anneliesae, V. contracta and V. funiculus
group. So, in our opinion it must be
placed in the genus Vitrinella.
Vitrinella helicoidea C.B. Adams, 1850 (Figures 94A-G, 95A-D)
Vitrinella helicoidea C.B. Adams, 1850. Monograph of Vitrinella, a New Genus of New Species
of Turbinidae: 9. [Type locality: Port Royal, Jamaica].
Vitrinella praecox Pilsbry £ McGinty, 1946b. The Nautilus, 60: 14-15, pl. 2, figs. 1-1b. [Type local-
ity: North end of Lake Worth].
Type material: Lectotype in MCZ (156271), represented in CLENCH € TURNER, 1950: plate 35, fig. 1);
1 paralectotype (labeled as paratype), also from the type locality (MCZ 186188). Vitrinella praecox
represented in PILsBRY £ MCGINTY (1946b). Not examined.
Other material examined: Cuba: 5 s, Sancho Pardo Shoal, 15 m (MHNS); 5 s, Guajimico, 5 m
(MANS); 30 s, Cienfuegos Bay, 8 m (MHNS); 1 s, Cienfuegos Bay, sta. 12, 22%07'N 80%27'W, 9 m
(MHNS); 4 s, Cienfuegos Bay, sta. 12a, 22%07'N 80%26'W, 4 m (MHNS); 3 s, Cienfuegos Bay, 20-30
m (MHNS); 18 s, Rancho Luna Beach, 20 m (MHNS); 1 j, Rancho Luna Beach, 10-20 m (MHNS); 4
s, Cienfuegos Bay, 8 m (MHNS); 4 s, Guajimico, figured (MHNS). Virgin Islands: 2 s, St. Thomas
(MCZ 156276). Venezuela: 3 s, José Griego, north coast Isla Margarita, 0 m, drift (CHL). ABC
Islands: 1 s, Newport Reef, Curacao, 20 m (CHL). Antigua: 1 s, Falmouth Harbour, 1-2 m, sand
grass, (CHL). Turks €: Caicos: 1 s, The G Spot, French Cay, 18 m (CHL). Florida, USA: 1 s, off
Boynton inlet, Palm Beach Co., 76-90 m (CHL).
Description: Shell (Figs. 94A-E) tro-
choid in shape, glossy, with a low profile,
4 Ya whorls; each whorl overlaps the
periphery of the previous one. Protoconch
(Figs. 94F-G) with a finely wrinkled
surface at its beginning and spiral irregu-
167
Iberus, 29 (2), 2011
Figures 93A-E. Vitrinella opsitelotus (Dall, 1892). A-C: shells, 2.1, 2.1, 2.2 mm, Sarasota Co.
Florida (CHL); D: detail of the sculpture; E: protoconch.
Figuras 93A-E. Vitrinella opsitelotus (Dall, 1892). A-C: conchas, 2,1, 2,1, 2,2 mm, Sarasota Co.
Florida (CHL); D: detalle de la escultura; E: protoconcha.
lar cordlets in the subsequent part; about
280 um in diameter and a little more than
1 Ya whorls. Teleoconch formed by 2 Y
whorls. From the varix which marks the
168
end of the protoconch there are two strong
spiral cords which extend up to the end of
the first whorl of the teleoconch where
they fade out. The subsequent part of the
RUBIO ET AL.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 94A-G. Vitrinella helicoidea C.B. Adams, 1850. A-E: shells, 2.1, 1.9, 1.7, 2.5, 2.4 mm,
Cienfuegos Bay, Cuba (MHNS); F-G: protoconchs.
Figuras 94A-G. Vitrinella helicoidea C.B. Adams, 1850. A-E: conchas, 2,1, 1,9, 1,7, 2,5, 2,4 mm,
Bahía de Cienfuegos, Cuba (MHNS); F-G: protoconchas.
shells is nearly smooth, with only very Dimensions: Lectotype 2.7 mm in
fine growth lines. A spiral cord angulates diameter and 1.6 mm in height. The
the border of the umbilical infundibulum. largest shell in our material measures 2.95
Umbilicus deep with smooth walls. mm in diameter and 1.7 mm in height.
169
Iberus, 29 (2), 2011
Figures 95A-D. Vitrinella helicoidea C.B. Adams, 1850. A-C: shells, 1.8, 1.7, 1.4 mm, Sandro
Pardo Shoal, Cuba (MHNS); D: protoconch.
Figuras 95A-D. Vitrinella helicoidea C.B. Adams, 1850. A-C: conchas, 1,8, 1,7, 1,4 mm, Bajo de
Sandro Pardo, Cuba (MHNS); D: protoconcha.
Habitat: This species was found
between 0 and 42 m in depth. It has been
found under rocks close to shore
(ANDREWs, 1977). Under rocks in shallow
170
waters (Díaz MERLANO é PUYANA
HEGEDUS, 1994). Our material was col-
lected on a coralline bottom between 5 and
20 m.
RUBIO ET 42.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Distribution: Recorded from Port
Royal, Jamaica (ADAMS, 1850); from the
north inlet of Lake Worth, Palm Beach
Co., Florida (PILSBRY €: MCGINTY, 1946);
from Colón and Bocas Island, Panama
(OLSSON éz MCGINTY, 1958); Bermuda, off
Cape Hatteras (JOHNSON, 1934), North
Carolina, South Florida, Texas, Jamaica,
Haiti, Puerto Rico and Panama (MOORE,
1964); Virgin Islands (NOwELL-USTICKE,
1959); SE United States; the Antilles; E
coast of Central America (HOUBRICK,
1968). Puerto Rico (WARMKE éz ABBOTT,
1975). Bermuda; from southeast USA to
the Antilles; Texas; Ouintana Roo; Costa
Rica; Panama (ANDREWS, 1977). From
Campeche to Ciudad del Carmen and
Zacatal, Mexico (VOKES €: VOKES, 1984).
Curacao (DE JONG € COOMANS, 1988).
Bermuda; from North Carolina to Florida
and the Caribbean Sea (RoBINSON, 1991).
From Bermuda and North Carolina to the
Dutch Antilles and Colombia (Díaz
MERLANO € PUYANA HEGEDUS, 1994).
Abaco, Bahamas (REDFERN, 2001). Our
material extends the range to Cuba, the
ABC Islands, Turks € Caicos, and
Venezuela.
Remarks: MOORE (1964: 58) considers
V. praecox a synonym of V. helicoidea
applying the observation that it was
described by PILSBRY €: MCGINTY (1946)
on the basis of juvenile specimens which
show the spiral cords. We have found
shells (Figs. 94C-E) with the teleoconch
whorls more depressed, dorsally and ven-
trally, and which exhibit three spiral cords
instead of two on the first Y whorl of the
teleoconch. The rest of the sculptural char-
acters and dimensions of the shell and
protoconch are similar (3 x 1.8 mm; proto
270 um). Lacking radular and anatomical
information on these slightly different
shells, we provisionally consider them
only morphological variations of a single
species.
Vitrinella floridana Pilsbry €£ McGinty, 1946 (Figures 96A-D)
Vitrinella floridana Pilsbry y McGinty, 1946. The Nautilus, 60: 16-17, pl. 2, figs. 4-4a. [Type local-
ity: Northern Biscayne Bay near Baker's Haulover, Miamil.
Type material: Holotype figured by MoorE (1964, Fig. 4) deposited in ANSP (181880). Not examined.
Other material examined: Florida, USA: 32 s, Hypoluxo Island, Lantana, Palm Beach Co., drift
(CHL); 1 s, N Peanut Island, Lake Worth, Palm Beach Co., dredged at 2-4.5 m (CHL).
Description: This is the original
description in PILSBRY ££ MCGINTY (1946):
“The minute shell is depressed, whitish,
smooth, openly umbilicate, the umbilicus
contained 3.25 times in the diameter.
There are barely 3 Y% convex whorls, the
last whorl somewhat flattened below the
periphery, rounded at periphery, base,
and umbilical border, the umbilicus
rather broadly open, perspective, the
whorls visible within it convex. The aper-
ture is rather strongly oblique, rounded
angular above (or in a basal view it
appears bluntly triangular). Peristome
thin, the upper margin only moderately
arched forward. The columellar margin
is thickened and runs forward above.
Parietal callus rather thick and short.
Diameter 1.95 mm, height 0.95 mm;
umbilicus 0.6 mm wide”.
We can add: Shell (Figs. 96A-C). Pro-
toconch (Fig. 96D) of about 1 % whorls
and about 330 um in maximum diame-
ter, with a slightly rough surface, more
evident on the subsutural area, which
gives it a frosted appearance. Teleo-
conch of about 2 whorls, smooth except
for clear growth lines also visible within
the umbilicus. Umbilicus wide and deep
with rounded walls, lacking a perium-
bilical cord. Aperture ovoid strongly
prosocline.
Dimensions: We have shells with
about 1.30 mm in maximum dimension
and 0.75 mm in height.
Habitat: This species has a mainly
continental distribution, living between
0 and 46 m in depth. MOORE (1964)
mentions that it is very common in
some localities, having examined a lot of
TA
Iberus, 29 (2), 2011
Figures 9GA-C: Vitrinella floridana Pilsbry 8% McGinty, 1946. A-C: shells, 1.3, 1.3, 1.4 mm,
Hypoluxo Island, Lantana, Palm Beach Co., Florida (CHL); D: protoconch.
Figuras 96A-C: Vitrinella floridana Pilsbry Y McGinty, 1946. A-C: conchas, 1,3, 1,3, 1,4 mm,
Hypoluxo Island, Lantana, Palm Beach Co., Florida (CHL); D: protoconcha.
924 specimens from Mud Island, Biscayne Bay near Baker”s Haulover,
Aransas Bay, Texas. Miami; Indian River south of Sebastian,
Distribution: The species is known Indian River Co.; North Inlet of Lake
from the USA: Recorded from Northern Worth, Palm Beach; and Barnes Sound,
172
RUBIO E7 42z.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Key Largo, Florida (PILSBRY €
MCGINTY, 1946); East and West
Florida, Texas (Lyons, 1971;
ANDREWS, 1977); Texas (ODÉ, 1987).
Mexico: Quintana Roo (VOKES éz
VOKESs, 1984); Tamaulipas, Tabasco,
Veracruz, Campeche Bank, Quin-
tana Roo (GARCÍA-CUBAS, 1970,
1990). Colombia (Díaz MERLANO éz
PUYANA HEGEDUS, 1994). Cuba:
Cienfuegos Bay.
Remarks: The small size, rather
large umbilicus without a border-
ing cord, and the feeble convexity
of the upper margin of peristome in
apical or basal view are its more
conspicuous features (PILSBRY €:
MCGINTY, 1946). Vitrinella flori-
dana has a shell very similar in
general appearance to that of Vit-
rinella helicoidea from which it can
be distinguished by the ornamenta-
tion of the protoconch, by the lack
of spiral cords on the first Y whorl
of the teleoconch and the lack of a
bordering umbilical cord. From Vit-
rinella canaliculata it can be differ-
entiated by the absence of the
sutural canal and the ornamenta-
tion of the protoconch.
Vitrinella canalicu lata spec. nov. (Figures 97A-C)
Type material: Holotype (Fig. 97A) in MNCN (15.05 /55070). Paratypes: MHNS (100553, 1 s); MNHN
(24399, 1 s); CFG (1 s).
Type locality: Rancho Luna Beach, Cienfuegos, Cuba.
Etymology: The specific name refers to the sutural canal which is visible along the full extent of the
teleoconch.
Description: Shell (Figs. 97A-B)
depressed, without sculpture and with a
broad umbilicus. Protoconch (Fig. 97C)
of about one whorl, with a slightly
rough surface, and about 320 um in
maximum diameter; immediately after
the protoconch there commences a wide
suture which forms a small groove.
Teleoconch of about 2 whorls, smooth
except for fine growth and the sutural
canal, which is visible all the way to the
aperture. Umbilicus wide and deep with
rounded walls, without a periumbilical
cord.
Dimensions: Holotype 1.8 mm in
diameter.
Habitat: The studied material
came from coralline sand bottoms 20
m in depth.
Distribution: Only known from
Rancho Luna Beach, Cienfuegos,
Cuba, its type locality.
Remarks: V. canaliculata spec.
nov. has a shell very similar in
general appearance to that of V. heli-
coidea and V. floridana, from which
it can be distinguished by the orna-
mentation of the protoconch, the
lack of spiral cords on the first Y
whorl of the teleoconch, having a
sutural canal and the lack of perium-
bilical cord.
Vitrinella aristata spec. nov. (Figures 98A-I)
Type material: Holotype (Fig. 98A) in MNCN (15.05/55069). Paratypes: ANSP (1 s); AMNH (4 s);
FLMNH (448612, 1 s); MCZ (1 s); MHNS (100554, 24 s); MNHN (24400, 1 s); NHMUK (1 s); USNM
(1155033, 1 s); IES (1 s); CFG (10 s), CHL (3 s) and CFR (10 s).
Other material examined: Cuba: 3 s, Cienfuegos Bay, 20-30 m (MHNS); 2 s, Rancho Luna Beach, 12
m (MHNS7); 1 sp, 14 s, Rancho Luna Beach, 10-20 m (MHNS); 2 s, Rancho Luna Beach, 35 m (MHNS);
8 s, Rancho Luna Beach, 40 m (MHNS); 27 c, Rancho Luna Beach, 45 m (MHNS); 4 c, Los Laberin-
tos, Rancho Luna Beach, 35 m (MHNS); 1 sp, 17 s Faro de los Colorados, 56 m (MHNS); 1 s, Punta
de Tamarindo.
Type locality: Rancho Luna Beach, Cienfuegos, Cuba.
173
Iberus, 29 (2), 2011
Figures 97A-C. Vitrinella canaliculata spec. nov. A-B: holotype, 1.8 mm (MNCN); B: paratype,
1.3 mm, Rancho Luna Beach (MHNS); C: protoconch.
Figuras 97A-C. Vitrinella canaliculata spec. nov. A-B: holotipo, 1,8 mm (MNCN); B: paratipo, 1,3
mm, Playa Rancho Luna (MHNS); C: protoconcha.
Etymology: The specific name refers to the unique pattern of dorsal opisthocline and ventral proso-
cline grooves, which meet at an acute angle at the mid-periphery creating a pattern reminscent of
an ear, or husk, of grain, in Latin “arista”.
Description: Shell (Figs. 98A-D)
depressed, solid, brown, polished, and
with characteristic oblique grooves.
Protoconch (Figs. 98F-G) het-
erostrophic, about 1 % whorls, and
about 280 um in diameter, placed on a
plane slightly above that of the other
whorls, with a smooth surface at its
beginning followed by a segment with
coarse prosocline growth lines termi-
nating with a faint axial varix. Teleo-
conch of about 1 Y rapidly-increasing
whorls; dorsally and ventrally convex;
from the suture and from the umbilical
border, oblique sulci (opisthocline and
prosocline respectively) converge at
the middle of the periphery. These
sulci are less evident on the last Y
whorl. Aperture rounded, oblique, col-
umellar margin not thickened, outer
and inner lips sharp. Umbilicus wide
and deep, exposing the previous
174
whorls, without ornamentation except
for the growth lines and several faint
spiral cords.
Dimensions: Holotype 1.23 mm in
diameter and 0.57 mm in height.
Operculum corneous and multispi-
ral with a central nucleus.
Radula (Fig. 98H) taenioglossate,
with formula 2+1+R+1+2. Central
tooth wide basally, the ventral margin
well developed, without denticles.
Cutting area formed by a large and
sharp cusp and 5 denticles of medium
size at each side. Lateral teeth similar
to the central one, but the base is nar-
rower; free margin with a central cusp
and 4-5 smaller denticles at each side.
Marginal teeth narrow and elongate;
the inner with 24-26 fine denticles on
the upper outer margin; the outer mar-
ginal teeth are strongly inclined
outward in their upper third and
RUBIO ET AL.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 98A-1. Vitrinella aristata spec. nov. A-B: holotype, 1.23 mm, Rancho Luna Beach, Cuba
(MNCN); C-D: paratypes, 1.0, 0.9 mm, Rancho Luna Beach (MHNS); E: microsculpture; F-G:
protoconch; H: radula: 1: operculum, 0.5 mm in diameter.
Figuras 98A-1. Vitrinella aristata spec. nov. A-B: holotipo, 1,23 mm, Playa Rancho Luna, Cuba
(MNCN); C-D: paratipos, 1,0, 0,9 mm, Playa Rancho Luna (MHNS); E: microescultura; F-G: proto-
concha; H: rádula: I: opérculo, 0.5 mm de diámetro.
175
Iberus, 29 (2), 2011
possess 16-18 denticles on the upper
end of their inner margin.
Animal unknown. Operculum (Fig.
981) rounded and multispiral.
Habitat: This species has been col-
lected between 10 and 60 m, on a
coralline, slightly muddy bottom.
Distribution: Only known from
Cuba.
Remarks: Vitrinella aristata spec.
nov. has a glistening shell with a very
attractive and characteristic sculpture
which makes it unmistakable. V.
anneliesae is the only species with a
similar ornamentation, with slightly
oblique cords emerging from the
suture. The radula is similar to that of
other tornid species.
Vitrinella pseudoaristata spec. nov. (Figs. 99A-E)
Type material: Holotype (Fig. 994) in MNCN (15.05/55071). Paratypes: MNHN (24401, 1 s, Fig.
99B) and IES (1 s, Fig. 99C), both from type locality.
Type locality: Rancho Luna Beach, Cienfuegos, Cuba.
Etymology: The specific name refers to the similarity with the species Vitrinella aristata.
Description: Shell (Figs. 99A-C)
depressed, solid, polished, and with
characteristic oblique grooves. Proto-
conch (Fig. 99D) heterostrophic, 1 Y
whorls, about 290 um in diameter, and
slightly projected. Teleoconch of about 2
rapidly-increasing whorls; dorsally and
ventrally convex; completely smooth
except for 5-6 somewhat oblique incised
lines seen on the dorsum of the first
teleoconch whorl; these fade on the
periphery, which is rounded. A thick
cordon marks the boundary of the
umbilicus, which is not occluded by a
callus. Aperture rounded, robust; thick
and somewhat reflected columella, but
without callus formation. Umbilicus not
too wide or deep, flanked by the spiral
cord. Aperture rounded, oblique, col-
umellar margin not thickened, outer
and inner lips sharp.
Dimensions: Holotype 1.26 mm in
diameter, similar to the paratypes.
Animal and radula unknown.
Habitat: This species has been col-
lected between 15 and 35 m in coralline
sand.
Distribution: Only known from
Cuba.
Remarks: Vitrinella pseudoaristata
spec. nov. has a glistening shell with a
very attractive and characteristic sculp-
ture which makes it unmistakable. V.
anneliesae and V. aristata are the only
species with a similar ornamentation,
possessing slightly oblique cords near
the suture. V. pseudoaristata spec. nov.
differs from V. aristata spec. nov. by
having fewer oblique lines and having
them limited to the dorsum of the first
teleoconch whorl; furthermore it has a
spiral cord that delimits the umbilicus.
Vitrinella pelorcei spec. nov. (Figures 100A-C)
Type material: Holotype (Figs. 100A-B) in MNHN (24202).
Type locality: Reef Bay Bronage, Antigua.
Etymology: After Jacques Pelorce, the French malacologist who collected the holotype.
Description: Shell (Figs. 100A-B) of
small size, depressed, appearing
fragile, with a sutural groove and
characteristic large axials ribs. Proto-
conch (Fig. 100C) of about 1 % whorls,
placed on a higher plane than the
teleoconch, with a smooth surface at
176
its beginning and 3-4 fine spiral
cordlets of microtubercles in the subse-
quent part, about 290 um in diameter.
Teleoconch with almost 1 Y rapidly-
increasing whorls; dorsally and ven-
trally convex. Ornamentation formed
by axial growth lines and strong axial
RUBIO ET 412.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 99A-G. Vitrinella pseudoaristata spec. nov. A: holotype, 1.26 mm, Rancho Luna Beach,
Cuba (MNCN); B: paratype, 1.2 mm, Rancho Luna Beach (MNHN); C: paratype, 1.2 mm,
Rancho Luna Beach (1ES); D: protoconch; E: microsculpture.
Figuras 99A-G. Vitrinella pseudoaristata spec. nov. A: holotipo, 1,26 mm, Playa Rancho Luna, Cuba
(MNCN); B: paratipo, 1,2 mm, Playa Rancho Luna (MNHN); C: paratipo, 1,2 mm, Playa Rancho
Luna (IES); D: protoconcha; E: microescultura.
ribs, nine on first teleoconch whorl; the
last Y whorl loses its axial sculpture
leaving only very faint spiral cordlets.
The suture is very evident in the proto-
conch, and it becomes a wide groove
along the teleoconch. Aperture
rounded, oblique, columellar margin
not thickened, outer and inner lips
AZ
Iberus, 29 (2), 2011
Figures 100A-C. Vitrinella pelorceí spec. nov. A-B: holotype, 1.02 mm, Reef Bay Bronage, Antigua
(MNHN); C: protoconch.
Figuras 100A-C. Vitrinella pelorcei spec. nov. A-B: holotipo, 1,02 mm, Reef Bay Bronage, Antigua
(MNAN); C: protoconcha.
sharp. Umbilicus wide and deep
exposing the previous whorls. No
sculpture except for axial growth lines.
Dimensions: Holotype 1.02 mm in
maximum diameter.
Animal and radula unknown.
Habitat: The only shell known was
collected on a coralline bottom at 1 m.
Distribution: Only known from
Antigua, the type locality.
Remarks: Vitrinella pelorcei spec.
nov. has a characteristic ornamentation
formed by strong and widely-
spaced axial ribs and an evident
suture in the protoconch which in
the teleoconch evolves into a sutural
sulcus continuing to the aperture.
These characters make this species
unmistakable. Vitrinella floridana is
the only species with a similar
sutural sulcus, but it is narrower
and deeper; Furthermore the latter
has no other sculpture, axial or
spiral.
Vitrinella aguayoi (Corgan, 1968) (Figures 101A-E)
Vitrinella tenuisculpta Aguayo «€ Borro, 1946b. Rev. Sociedad. Malac. “Carlos de la Torre,” 4(2):
43-44, pl. 3, figs. 4-6. [Type locality: Matanzas, Cuba], preoccupied by Vitrinella tenuisculp ta
Carpenter, 1865.
Solariorbis aguayo1 Corgan, 1968.
178
RUBIO £7 4£.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 101A-H. Vitrinella aguayoi Corgan, 1968. A-D: shells, 1.45, 1.4, 1.4, 1.2 mm, Cienfue-
gos, Cuba (MHNS); E: protoconch.
Figuras 1O1A-H. Vitrinella aguayoi Corgan, 1968. A-D: conchas, 1,45, 1,4, 1,4, 1,2 mm, Cienfue-
gos, Cuba (MHNS); E: protoconcha.
Type material: Holotype represented in AGUAYO éz BORRO (1946, figs. 4-6). Deposited in Museo
Poey, Havana, Cuba (12005). Described as fossil of the Upper Tertiary found in the formation
“Yumurí,” Upper Miocene of Cuba. Not examined.
179
Iberus, 29 (2), 2011
Other material examined: Cuba: 6 s, Rancho Luna Beach, 12 m (MHNS); 51 s, Rancho Luna Beach,
10-20 m (MHNS); 1 s, Rancho Luna Beach, 35 m (MHNS); 1 sp, 5 s Faro de los Colorados, 56 m
(MHNS).
Description: The original descrip-
tion (AGUAYO é BORRO, 1946b) is as
follows: “Concha diminuta, depri-
mida, plano convexa por encima,
ampliamente umbilicada por debajo.
Provista de 3 vueltas redondeadas, la
ultima ligeramente aquillada. Las pri-
meras 1 Y (nucleares), lisas, las restan-
tes de escultura reticulada. Escultura
espiral formada por numerosas líneas
salientes (unas 15 en la última vuelta);
escultura axial formada por líneas mas
elevadas que las espirales, formando
con estas cuadrículas que comunican a
la concha un aspecto granuloso. Perife-
ria subangulosa. Ombligo amplio, for-
mando con la base de la concha un
ángulo muy marcado que lo bordea
por completo. Abertura semilunar, con
el borde unido por un leve callo parte-
pal
Shell (Figs. 101A-C) subconical,
depressed, solid, whitish and formed
by 3 % rapidly-increasing whorls. Pro-
toconch (Fig. 101H) of about 1 %
whorls, about 290 um in diameter, has
a rough surface at its beginning and
fine oblique threads in the subsequent
part, slightly overlapped by the subse-
quent whorl. Teleoconch of about 2 Y
whorls, sculpture of 38-39 spiral
cordlets, 24 on the dorsum and 14-15
ventrally, spiral cordlets crossed by 75-
80 fine axial ribs, forming small quad-
rangular hollows. Dorsally convex
with a subangulated periphery. Ven-
trally slightly concave with one promi-
nent spiral cord which limits a wide
infundibulum of the deep umbilicus
with smooth walls. Aperture oval
almost circular, columella and inner lip
very thick and reflected outward and
the upper part of the external lip sharp
and advanced. There is no columellar
thickening or encroachment on the
umbilicus. At junction of the columella
and umbilical cord the aperture is
slightly angulated.
Dimensions: Holotype 1.19 mm in
diameter and 0.5 mm in height. We
180
have shells reaching 1.45 mm in
maximum dimension
Habitat: The type is a fossil speci-
men collected in the Upper Miocene of
Cuba, from the “Yumuri” Formation.
Our recent material was collected
between 10 and 56 m.
Distribution: Cuba: Cienfuegos.
Since its description this species has
not been recorded from any other
Caribbean locality. Thus it could be
endemic to Cuba.
Remarks: Solariorbis aguayoi was
proposed by CORGAN (1968) as a
replacement name for Vitrinella tenuis-
culpta Aguayo € Borro, 1946, which is
preoccupied by V. tenuisculpta Car-
penter 1965: The renamed species,
known only from the Miocene of
Cuba, was placed in the vitrinellid
genus Solariorbis Conrad, 1865 by
Corgan on the basis of reticulate
microsculpture.
AGUAYO € Borro (1946b) men-
tioned that V. tenuisculpta. (=V.
aguayo1) is more similar to Vitrinella
multistriata (A.E. Verrill), and it can be
distinguished by being smaller, having
weaker sculpture, the axial lines being
proportionately more prominent than
the spiral ones, the umbilicus wider,
and the periphery angled angulate.
Vitrinella aguayoi and V. cal-
liglypta are very similar, and they
were considered as morphotypes of
the one species in the past. They live in
the same type of marine bottom, and
maintain their distinguishing charac-
ters without intergradation. The proto-
conchs are identical in size and orna-
mentation and, as with other species
included in the genus Vitrinella (V.
annelisae, V. contracta, V. funiculus),
the protoconch is slightly overlapped
by the first whorl of the teleoconch.
Vitrinella aguayoi may be distin-
guished from V. calliglypta by its
angled periphery and by the greater
number of spiral cordlets and axial
ribs.
RUBIO ET ALz.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Vitrinella calliglypta Aguayo, 1949 (Figures 102A-E)
Vitrinella (Delphinoidea) calliglypta Aguayo, 1949. Rev. Sdad. Malac. “Carlos de la Torre,” 6: 94,
pl. 4, fig. 4, 6. [Type locality: Gibara, Eastern, Cuba].
Type material: Holotype deposited in the Museo Poey, Havana, Cuba (12901). Collected by P.J.
Bermudez and C.G. Aguayo. Not examined.
Other material examined: Cuba: 2 s, Cienfuegos Bay, 20-30 m (MHNS) 1 s, Cienfuegos Bay, 30 m
(MHNS); 48 s, Rancho Luna Beach, 10-20 m (MHNS); 3 s, Rancho Luna Beach, 40 m (MHNS); 8 s,
Rancho Luna Beach, 45 m (MHNS); 3 s, Los Laberintos, Rancho Luna Beach, 35 m (MHNS); 3 s,
Faro los Colorados, 56 m (MHNS).
Description: The original descrip-
tion (AGUAYO, 1949) is as follows:
“Concha diminuta, deprimida, planor-
boide, blanca, lustrosa, translúcida,
ampliamente umbilicada. Espira
deprimida, sutura profunda pero
estrecha. Provista de 3 Y% vueltas, de
las cuales 1 Y son lisas, y las restantes
con una escultura entrecruzada,
formada por numerosas costillitas
planas axiales, algo más estrechas que
sus intervalos y muchas costillas espi-
rales (unas 15 en la última vuelta) más
bajas que las axiales, cuyo entrecruza-
miento le da un aspecto de numerosas
depresiones cuadrangulares. Periferia
redondeada. Base aplanada, con un
ámplio ombligo de un 40% del diáme-
tro de la concha. Abertura subcircular,
peristoma cortante”.
Shell (Figs. 102A-D) subconical
depressed, solid, whitish, and com-
prised of 3 % rapidly-increasing
whorls. Protoconch (Fig. 102E) project-
ing slightly upward, about 1 Y whorls
and about 290 um in diameter. It has a
rough surface at its beginning and fine
oblique threads in the subsequent
part, slightly overlapped by the subse-
quent whorl. Teleoconch of about 2
whorls, with sculpture formed by 32-
34 spiral cordlets: 20 on the dorsum
and 12-14 ventrally, each crossed by
55-60 fine axial ribs, forming small
quadrangular hollows. Dorsally
slightly convex with a biangulated
periphery. Ventrally the shell is
slightly concave with one spiral cord
which limits a wide infundibulum of
the deep umbilicus. Aperture oval,
almost circular, columella and inner
lip very thick and reflected outward,
and the upper part of the external lip
sharp and advanced. At the junction
between columella and the periumbili-
cal cord, the aperture is slightly angu-
lated.
Dimensions: Holotype 1.0 mm in
diameter and 0.6 mm of height. We
have shells reaching about 1.23 mm in
maximum dimension.
Habitat: The type was dredged off
Gibara, East of Cuba, at 30 fathoms in
depth. Our material was collected
between 10 and 56 m.
Distribution: Cuba: Holguin,
Gibara, Cienfuegos. Since its descrip-
tion this species has not been recorded
from any other Caribbean locality, so it
could be endemic to Cuba.
Remarks: AGUAYO (1949) men-
tioned that V. calliglypta shows a little
similarity to V. tenuisculpta Aguayo é
Borro, and it can be distinguished by
the biangulate periphery and the
fewer axial ribs and spiral cords. V.
multistriata Bush is smaller and has
stronger sculpture.
Vitrinella cupidinensis Altena, 1966 (Figures 103A-F)
Vitrinella (Striovitrinella) cupidinensis Altena, 1966. Zoologische Mededelingen, 41: 235-236,
figs. 2a-d. [Type locality: Cupido, river Maratakka, Surinam].
Type material: Represented in ALTENA (1966b, 1975). Not examined.
181
Iberus, 29 (2), 2011
Beach, Cuba (MHNS); E: protoconch.
Figures 102A-E. Vitrinella calliglypta Aguayo, 1949. A-D: 1.4, 1.3, 1.1, 1.2 mm, Rancho Luna
Figuras 102A-E. Vitrinella calliglypta Aguayo, 1949. A-D: 1,4, 13, LL, 1,2 mm, Playa Rancho
Luna, Cuba (MANS); E: protoconcha.
Other material examined: Guatemala: 2 s, Livingston, 3 m (MHNS). Trinidad and Tobago: Tobago,
1 s, Courland Bay, drift (CHL); 1 s, Scarborough (CHL). Venezuela: 1 f, Juan Griego, Isla Margarita
(CHL); 2 s, Isla Margarita (CHL).
Description: Shell (Figs. 103A-C)
lenticular, depressed, whitish, with 3 Y
spiral whorls. Protoconch (Fig. 103D) 1
1% whorls, diameter of about 350 um; the
182
first Y whorl is smooth, and the next
whorl has small granules on the periph-
eral area. Two varices mark the end of
each stage. Teleoconch of about 1 %
RUBIO ET 4£.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 103A-E. Vitrinella cupidinensis Altena, 1966. A-C: shells, 1.7, 1.7, 1.35 mm, Livingston,
Guatemala (MHNS); D: shell, 1.7 mm, Tobago (CHL); E: protoconch, Guatemala; F: Proto-
conch, Tobago.
Figuras 103A-E Vitrinella cupidinensis Altena, 1966. A-C: conchas, 1,7, 1,7, 1,35 mm, Livingston,
Guatemala (MHNS); D: concha, 1,7 mm, Tobago (CHL); E: protoconcha, Guatemala; F: protocon-
cha, Tobago.
Iberus, 29 (2), 2011
whorls, its surface totally covered by
spiral cords of similar size and very fine
axial striae which cross the sulci
forming a characteristic sculpture.
Dimensions: Holotype 1.8 mm in
diameter and 0.9 mm in height. We have
shells reaching 1.7 mm in maximum
diameter and 1.06 mm in height.
Habitat: We found no mention of the
habitat of this species in the literature.
Our material was collected in muddy
bottom with turbid waters at 3 m.
Distribution: Colombia (Díaz éz
PUYANA, 1994). Brazil: Recife (Altena,
1966), Pernambuco (Rios, 1994) and Liv-
ingston, Guatemala.
Remarks: Vitrinella cupidinensis was
described from fossil shells in the
Holocene of Surinam. The distinguish-
ing Characteristic of this species is the
teleoconch sculpture of fine spiral cords
crossed by very fine axial striae. ALTENA
(1966) indicated that this species is very
similar to Vitrinella (Striovitrinella)
elegans Olsson £ McGinty, 1958, but the
latter is slightly larger and, at the same
number of whorls, the spiral sculpture is
smaller and the radial more prominent.
Vitrinella filifera Pilsbry €££ McGinty, 1946 (Figures 104A-D)
Vitrinella filifera Pilsbry € McGinty, 1946. The Nautilus, 60: 15, pl. 2, figs. 2-2b. [Type locality:
Biscayne Bay at Baker's Haulover, Miami, Florida].
Type material: Holotype in ANSP (n* 181879) not figured by MOORE (1964). Not examined.
Material examined: Virgin Islands: 1s, Magens Bay, N St. Thomas, (CHL).
Description: This is the original
description in PIiLsBRY é MCGINTY
(1946): “The shell is depressed, umbili-
cate, the width of umbilicus contained a
little more than 4 times in the diameter;
thin, white (dead), smooth. The upper
surface is convex with slightly promi-
nent apex, the whorls convex, the last
whorl having a cord a short distance
below the suture and parallel to it,
becoming weaker near the aperture; the
periphery is broadly rounded; base
convex, a little impressed along the cord
around the umbilicus; which in its last
turn enlarges to about double its former
width and is bounded by a cord which
becomes weaker near the aperture. The
aperture is rounded, somewhat oblique,
the peristome thin, upper margin is
strongly arched forward, retracted to
the upper insertion, the basal margin
straightened or a little curved forward
in a basal view, and there is a slight
angle at the termination of the umbilical
cord. The columella is slanting, near
straight, rather thick. Parietal callus
thin. Diameter 1.25 mm; height 0.7 mm;
3 Y whorls”.
We add the following: The proto-
conch (Fig. 104D) projects slightly, has
184
1 % spiral whorls, is bulbous, mea-
sures about 280 um in diameter, and is
sculptured with microtubercles of
varying size distributed irregularly,
the larger ones near the subsutural
area. On the last segment there are
some spiral threads near the suture.
The teleoconch has 1 Y whorls com-
pletely covered by dense, fine axial
ribs, which cross the spiral cordlets,
more evident on the periphery. The
axial sculpture is predominant on the
dorsum.
On the base two more prominent
spiral cords can be observed; one of
them borders the periphery, and the
other delimits the umbilical zone. The
umbilicus is wide, with convex walls
on which axial and spiral cordlets can
be seen. Aperture rounded, columella
thickened and reflected outward.
Habitat: This species has not yet
been found alive (PILSBRY €: MCGINTY,
1946). MOORE (1964) did not comment
on its ecology.
Distribution: The species is known
from the USA: recorded from Biscayne
Bay at Baker”s Haulover, Miami,
Florida (PILsBRY éz MCGINTY, 1946b);
from both sides of the Florida penin-
RUBIO E7 41.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Virgin Islands (CHL); D: protoconch.
Figures 104A-D. Vitrinella filifera Pilsbry 82 Mc
Ginty, 1946. A-C: shell, 0.92 mm, St. Thomas,
Figuras 104A-D. Vitrinella filifera Pilsbry * McGinty, 1946. A-C: concha, 0,92 mm, St. Thomas,
Virgin Islands (CHL); D: protoconcha.
sula from Palm Beach to St. Petesburg
(MOORE, 1964); from Florida to Texas
and Colombia (ODÉ, 1987). Colombia,
(Díaz MERLANO 6 PUYANA HEGEDUS,
1994). Brazil: Cabo Frio, Rio de Janeiro
(Rios, 1994).
Remarks: PILSBRY é€ MCGINTY
(1946) described Vitrinella filifera, but
in spite of some similarities with V.
thomasi (Pilsbry, 1945), they didn't
compare the two species. MOORE (1964)
considered the two synonymous, indi-
cating that V. filifera was described from
a somewhat eroded adult shell which
may have lost some sculptural charac-
ters Furthermore, he considered Vit-
183
Iberus, 29 (2), 2011
rinella filifera as the valid nominal taxon
since “Cyclostrema” thomasi was a sec-
ondary junior homonym of Vitrinella
thomasi Bartsch, 1918 (see below). The
strong thread which follows the suture
and the strongly convex outline of the
upper margin of the aperture, seen in
apical or basal view, are distinctive fea-
tures of this species, which has not yet
been found alive (PILSBRY € MCGINTY,
1946). The projected protoconch, the fine
and dense axial ribs, which cross the
spiral cordlets, distinguish it from V.
solaris.
Vitrinella solaris nom. nov. (Figures 105A-C)
“Cyclostrema” thomasi Pilsbry, 1945b. The Nautilus, 59: 60, pl. 6, figs. 7-7b. [Type locality: North
Inlet of Lake Worth, Palm Beach, Florida].
[non Vitrinella thomasi Bartsch, 1918].
Type material: The holotype of “Cyclostrema” thomasiin ANSP (181309). The drawings in the orig-
inal description are quite distinctive.
Other material examined: Cuba: 1 s, Cienfuegos Bay, 8 m (MHNS); 1 s, Cienfuegos Bay, 10-20 m
(MHNS); 4 s, Cañon of Cienfuegos Bay, 8 m (MHNS); 1 s, Rancho Luna Beach, 10-20 m (MHNS);
2 s, Cayo Carenas, Cienfuegos Bay, 10 m (CFG).
Etymology: The specific name is based on the image of a child's drawings of the sun, rounded with
radial lines.
Description: See PILSBRY (1945b).
The holotype is 1 mm.
Habitat: Species living in shallow
waters. Bathymetric range: 1-20 m.
Distribution: USA: Florida (PILSBRY,
1945b); Texas (MOORE, 1964); ODÉ,
1987b). Cuba in our material.
Remarks: Vitrinella solaris nom.
nov. and Vitrinella filifera are two very
close species. For this reason, they
were placed in synonymy by MOORE
(1964). While it is true that the shells
on which V. filifera was based were
very eroded, and some characters were
lost by abrasion, it is nonetheless a dis-
tinct species. The shells figured here
show that there are two species
involved, a little similar in profile but
perfectly distinct in SEM micropho-
tographs. Vitrinella filifera has narrow
and curved axial ribs on the dorsum,
and the protoconch has a spiral row of
tubercles which are not seen in V.
solaris nom. nov.
Genus Vitrinorbis Pilsbry €: Olsson, 1952
Vitrinorbis callistus Pilsbry €: Olsson, 1952. Type species by original designation.
Remarks: This genus was proposed
for a group of minute, few-whorled dis-
coidal species with a low, flat or concave
spire, the base with a wide, open
umbilicus and strongly carinated
periphery. The surface is delicately
sculptured with microscopic spiral
threads which give it a soft, satiny
luster. The two previously known
species are from the eastern Pacific
(Panamic Province), but the following
one from the Caribbean appears to
belong to this genus (PILSBRY $: OLSSON,
1952).
Vitrinorbis elegans Olsson £ McGinty, 1958 (Figures 106A-E)
Vitrinorbis elegans Olsson €: McGinty, 1958. Bulletin of American Paleontology 39: 31-32, pl. 4,
figs. 3-3a. [Type locality: Bocas Island, Panama].
186
RUBIO ET 42.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
(MHNS). C: protoconch.
Figures 105A-C. Vitrinella solaris nom. nov. A-B: shells, 0.95, 0.95 mm, Cienfuegos Bay
: 100 um
Figuras 105A-C. Vitrinella solaris nom. nov. A-B: conchas, 0,95, 0,95 mm, Babía de Cienfuegos
(MANS). C: protoconcha.
Type material: Holotype (211881) and one paratype (211882) in ANSP. Not examined.
Other material examined: Panama: 2 s, Portobello (CHL); 3 s, Bocas Island, topotypes (CHL).
Description: The original description
(OLSssSON é£ MCGINTY, 1958) is rather
complete: “The shell is small (greater
diameter, 1.4 to 1.7 mm.), thin, white or
subtranslucent, depressed, with a large
peripheral keel. The spire is slightly ele-
vated, composed of 2 Y to 3 whorls of
which the nuclear portion of 1 Y whorls
is relatively large, smooth, helicoid in
shape. The postnuclear whorls are a little
convex or vaulted by a large, angular,
submedial ridge; on the inner side of this
rmáage “the. surface 15 flattened to
depressed, the outer side a little wider
and slopes convexly towards the outer
suture or towards the peripheral keel.
The basal section of the shell is more
depressed than the upper and likewise
carries a submedial ridge or angle;
within this ridge the surface has the
shape of a vortex which dips into a deep
umbilicus showing the inner volutions of
187
Iberus, 29 (2), 2011
Figures 106A-E. Vitrinorbis elegans Olsson 82 McGinty, 1958. A-C: shells, 1.6, 1.3, 1.6 mm, Bocas
Island, Panama (CHL); D: detail of the sculpture; E: protoconch.
Figuras 106A-E. Vitrinorbis elegans Olsson e McGinty, 1958. A-C: conchas, 1,6, 1,3, 1,6 mm, lsla
Bocas, Panamá (CHL); D: detalle de la escultura; E: protoconcha.
the spire whorls. Surface on both the
dorsal and ventral sides has a delicate
satiny texture produced by a sculpture of
fine, microscopic spiral threads minutely
cancellated by still finer lines of growth;
in the sutural areas, the growth lines are
heavier and may develop into axials
nearly as large and strong as the spiral
threads; aperture subovate, strongly
oblique, attached weakly to the body
whorl between the basal ridge and the
188
peripheral keel; no parietal callus. Holo-
type greater diameter 1.4 mm”.
Maximum reported size: 1.7 mm. Of
the figured specimens, the larger is
about 1.60 mm in diameter and the other
about 1.27 mm in diameter and 0.59 in
height.
Habitat: Nothing is known about the
habitat of this species. The type material
was obtained by sorting beach drift.
Depth: 0 m.
RUBIO ET AL.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Distribution: Costa Rica (HOUBRICK,
1968); Panama (OLsson € MCGINTY,
1958).
Remarks: This is the only species con-
sidered to be in the genus described in
the Caribbean, the two previously
known species are from the Panamic
Province. This is a very characteristic
species easily recognized by its delicate
ornamentation and characteristic profile.
SPECIES NOT REPRESENTED IN OUR MATERIAL
Anticlimax schumoi (Vanatta, 1913)
Discopsis schumo1 Vanatta, 1913. Proc. of the Acad. of Nat. Sci. of Philadelphia, 65: 24-25, pl. 2,
figs. 2, 7. [Type locality: Monkey River, British Honduras].
Type material: In ANSP (76581).
Descrip tion: In VANATTA (1913).
Maximum reported size: 2.5 mm.
Distribution: British Honduras:
Belize (VANATTA, 1913) Panama
(RADWIN, 1969), Venezuela: unlocalized
(PRINCZ, 1982).
Remarks: This species is not Teinos-
toma schumo1i Vanatta, 1913.
Cochliolepis surinamensis Altena, 1966
Cochliolepis surinamensis Altena, 1966. Zoologische Mededelingen, 41: 236-237, figs. 3a-d. [Type
locality: shell ridge at the “Kerkplein” (Church square) in Paramaribo, Surinam, at 1 m depth].
Type material: In RNHL.
Description: In ALTENA (1966).
Maximum reported size: 2.7 mm.
Distribution: Venezuela: unlocalized
(PriNcCz, 1982).
Remarks: Described as
Holocene fossil (ALTENA, 1966,
1975); recorded as living by PRINCZ
(1982).
Discopsis omalos (de Folin, 1870)
Adeorbis omalos Folin, 1870. Les Fonds de la Mer 1: 190-191, pl. 23, figs. 6-7. [Type locality:
Pointe-a-Pitre, Guadeloupe].
Discopsis omalus (sic): Error for D. omalos by JOHNSON (1934).
Description: In De FOLIN (1870).
Maximum reported size: 1.7 mm.
Distribution: Guadeloupe.
Remarks: PILSBRY 2 OLSSON (1945b)
wrote that “D. omalos has not been
found, to our knowledge, since the
original collection”. However the name
Discopsis omalos has been used for
Europe by NORDSIECK (1968), and West
Africa, albeit with reservations,
because the species was supposed to
be Caribbean. The claim of PILSBRY éz
OLssoN (1945b) and the absence of
specimens of this species in the mater-
ial studied for this work, leads us to
consider the possibility that the species
is not really from the Caribbean and
may have a limited distribution in the
eastern Mediterranean and West
Africa. De Folin was the captain of
Bayonne harbour and received anchor
mud from ships worldwide, which
makes the possibility of mixing locali-
ties quite likely.
189
Iberus, 29 (2), 2011
Pleuromalaxis pauli Olsson £z McGinty, 1958
Pleuromalaxis pauli Olsson £ McGinty, 1958. Bulletins of American Paleontology, 39: 30, pl. 3,
figs. 3-3a. [Type locality: Bocas Island, Panama].
Type material: In ANSP (211902).
Description: In OLSSON £ MCGINTY
(1958).
Maximum reported size: 1 mm.
Distribution: Panama; Trinidad «
Tobago: Tobago (OLSSON éz MCGINTY, 1958).
Depth: 0 m.
Solariorbis hondurasensis (Vanatta, 1913)
Teinostoma hondurasensis Vanatta, 1913. Proceedings of the Academy of Natural Sciences of
Philadelphia, 65: 26, pl. 2, figs. 8, 12. [Type locality: Belize and Monkey River, British Hon-
duras].
Type material: In ANSP (76535).
Description: In VANATTA (1913).
Maximum reported size: 1.8 mm.
Distribution: British Honduras: Belize
(VANATTA, 1913); Panama (RADWIN, 1969).
Remarks: MOORE (1964) placed this
species in Solariorbis.
Solariorbis petitii (P. Fischer, 1857) (Figures 107A-B)
Skenea petitii P. Fischer, 1857c. Journal de Conchyliolo g ie, 6: 288. [Type locality: Guadeloupe].
Type material: Syntypes in MNHN (23240), the better preserved one (Fig. 107) is hereby designated
the lectotype.
Description: In P. FISCHER (1857).
Maximum reported size: 2.5 mm.
Distribution: Guadeloupe (P.
FISCHER, 1857).
Remarks: MOORE (1964: 110-111):
“De tupe o) ts species comidos
be found in the Paul Fischer type
collection in the Laboratoire de
Malacologie in Paris. However, in
the general collection of the Labora-
toire there is a card bearing a glass
tube containing four specimens. The
card bears the following informa-
on Ad ecorbis petite cl
(86)”. In his discussion of his new
species, Fischer states that soft parts
and operculum resemble Skenea
planorbis, while the shell has more
the aspect of an Adeorbis. The shells
fit the description of Skenea petiti
190
with only one discrepancy, the
diameter is 3 Y mm instead of
Fischer's figure of 2 Y mm. Fischer
apparently wrote Adeorbis on the
card while working on the collection
from the Antilles and did not bother
to change it later. Thus the writer
considers the four specimens to be
the syntypes of Fischer's lost
species. It has never been figured.
We have examined the photo-
graph of one of the best preserved
syntypes in MNHN and saw that
the poor state of conservation pre-
cludes morphological comparison.
Some small spiral cordlets on the
external margin of the lip and the
shape of the umbilicus suggest some
similarity with Solariorbis multis-
triatus.
RUBIO ET A4L.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 107A-B. Solariorbis petitii (P. Fischer, 1857). A-B: Lectotype (MNHN).
Figuras 107A-B. Solariorbis petitii (P Fischer, 1857). A-B: Lectotipo (MNAN).
Teimostoma avunculus Pilsbry, 1953
Teinostoma (Pseudorotella) avunculus Pilsbry, 1953. Monographs of the Academy of Natural
Sciences of Philadelphia, 18: 413-414, pl. 49, fig. 3-3d. [Type locality: Plio-Pleistocene of North
St. Petersburg, Florida].
Type material: In ANSP (18917).
Description: In PILsBRY (1953). Depth: 11 to 18 m.
Maximum reported size: 2.3 mm. Remarks: Fossil species described by
Distribution: USA: Florida, Texas PILSBRY (1953); Recent species by ODÉ
(ODÉ, 19876b). (1987b, 1988).
Teinostoma morlierei Jousseaume, 1872
Range: 14.5%N, 61%W.
Maximum reported size: 3.5 mm. Distribution: Martinique.
19
Iberus, 29 (2), 2011
Teinostoma parvum (Stimpson, 1851)
Rotella parva Stimpson, 1851 (dubious name).
Range: SANO 990 NOS WWEStO
782W.
Distribution: USA: North Carolina.
References: KURTZ (1860); PORTER
(1974).
Vitrinella anomala (d4'Orbigny, 1842) (Figures 108A-C)
Trochus (Rotella) anomala d'Orbigny, 1842. Mollusques. Histoire Physique, Politique et Natu-
relle de líle de Cuba 2: 64, pl. 18, figs. 32-34. [Type locality: Saint-Thomas].
Type material: In NAMUK.
Description: D'ORBIGNY (1842)
in Sagra: “Concha orbicular muy
deprimida, translúcida, muy lisa,
brillante, ligeramente aquillada en
su contorno; ombligo abierto sin
encostramiento calcareo, verifican-
dose el engrosamiento calcareo por
dentro del borde columelar. Espira
casi horizontal, compuesta de cinco
vueltas deprimidas. Boca oblonga,
oval, celbbordescolunielaimbuv
grueso. Color blanco vítreo”.
Maximum reported size:
Oman:
Distribution: Colombia (Díaz
MERLANO é PUYANA HEGEDOS,
1994); Virgin Islands: St. Thomas
(D'ORBIGNY, 1842).
Vitrinella carinata (d'Orbigny, 1842)
Trochus (Rotella) carinata d'Orbigny, 1842. Mollusques. Histoire Physique, Politique et Naturelle
de l'ile de Cuba 2: 62-63, pl. 18, figs. 26-28. [Type locality: Saint-Thomas].
Type material: The material in USNM was not found (Yolanda Villacampa, pers. comm.). The mate-
rial in NAMUK apparently had the labels changed and was a different species.
Descrip tion: In D'ORBIGNY (1842).
Maximum Reported Size: 1.5 mm
Distribution: USA: North Carolina
(PORTER, 1974); Virgin Islands: St.
Thomas (D'ORBIGNY, 1842b). Depth:
ZA
Remarks: Nomen dubium according
to MOORE (1964).
Vitrinella hemphilli Vanatta, 1913
Vitrinella hemphilli Vanatta, 1913. Proceedings of the Academy of Natural Sciences of Philadel-
phia 65: 24, pl. 2, figs. 1, 3. [Type locality: Cedar Keys, Florida].
Type material: In ANSP (10236).
Description: In VANATTA (1913).
Maximum reported size: 2.5 mm.
Distribution: USA: Florida: West
Florida (VANATTA, 1913); Texas (ODÉ,
1987c); Colombia (Díaz MERLANO éz
192
PUYANA HEGEDUS, 1994). Depth: 0.6 to
73 m (alive at 51 m).
Remarks: MOORE (1964): “V.
hemphilli has a dorsal spiral cord which
disappears after one turn. In this, it is
RUBIO E7 41.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 108A-G. Syntypes of Rotella. A-C: Rotella anomala (d1'Orbigny, 1842), syntypes in
NHMUK; D-F: Rotella striata (d'Orbigny, 1842), syntypes in NHMUK; G: Rotella diaphana
('Orbigny, 1842), syntype in NHMUK.
Figuras 108A-G. Sintipos de Rotella. A-C: Rotella anomala (4'Orbigny, 1842), sintipos en NAMUK;
D-F: Rotella striata (4'Orbigny, 1842), sintipos en NHMUK; G: Rotella diaphana (4'Orbigny,
1842), sintipo en NHAMUK.
like V. helicoidea, but the pointed spire the umbilicus separates it from that
and absence of a strong carina around species”.
Vitrinella pusilla (L. Pfeiffer, 1840) (Figs. 108G, 109A-E)
Rotella pusilla Pfeiffer, 1840. Archiv fúr Naturgeschichte, 6(1): 255. Not figured [Type locality:
Cuba (Nordkiiste, L. PFEIFFER 1839: 349; Matanzas Bay or Cardenas, based on localities cited
by L. PFEIFFER, 1854].
Trochus (Rotella) diaphana d'Orbigny, 1842. Mollusques. Histoire Physique, Politique et Natu-
relle de lle de Cuba 2: 62, pl. 18, figs. 23-25. [Type locality: Saint-Thomas].
Pseudorotella pusilla (L. Pfeiffer, 1840).
Type material: One syntype in NHAMUK (Fig. 108G]. In USNM (35431) (secondary type collection:
as Rotella diaphana).
195
Iberus, 29 (2), 2011
Aedo 1897
% /
DL, e CLOS,
Mus. 3543 / U. S Fish don
4ne
Sta. O, AU
4
* 1013031354]
Smithsonian
Q)
€
Figures 109A-E. Vitrinella diaphana (4'Orbigny, 1842b). A-B: specimens identified by Bush, from
off Cape Hatteras; 1.27 mm, USNM (35431); C: protoconch; D-E: labels.
Figuras 109A-E. Vitrinella diaphana (4'Orbigny, 1842b). A-B: ejemplares identificados por Bush, pro-
cedentes de frente a Cape Hatteras; 1,27 mm, USNM (35431); C: protoconcha; D-E: etiquetas.
Description: Original description of
Rotella pusilla in PFEIFFER (1840):
“Testa discoidea nitide alba; anfract. S;
basi concaviuscula, medio callosa:
aperturasorbiculari. Diam. 4 al eS
lora
Original description of Trochus
(Rotella) diaphana in D'ORBIGNY, 1842:
“Coquille orbiculaire, deprimee, dia-
phane, trés lisse, tres polie, convexe du
cóte de la espire, legérement concave
du cóte de la bouche, la callosite étant
peu etendue. Spire peu elevée, tres
obtuse, composée de quatre tours
194
convexes, á pourtour arrondie. Bouche
ovale, oblique. Couleur: blanc transpa-
rentcomme du verre.
Maximum reported size: 1.5 mm.
Distribution: Cuba: North Havana
Province (ARANGO, 1880); USA: North
Carolina (Bush, 1897); Panama: Bocas
Island (OLsson éz MCGINTY, 1958).
Remarks: The types of Rotella
pusilla Pfeiffer, 1840 are untraceable. L.
PFEIFFER (1840) offered a short and
ambiguous text and no figure. Conse-
quently it may be confused with
several taxa. The type material is from
RUBIO £7 AZz.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Cuba, but we have not found any
museum or shell collection with mate-
rial labeled R. pusilla, which could
serve as a reference. Therefore we con-
sider Rotella pusilla L. Pfeiffer, 1840 as
a nomen dubium until the type mater-
ial is located. Under these conditions
the synonymy established for Vit-
rinella diaphana can not be accepted.
The types of Vitrinella diaphana
Orbigny, 1842 in NHMUK are in very
poor condition (Fig. 108G). In the sec-
ondary type collection of the USNM
(35431) are deposited 2 shells labeled
by Bush (1897) as V. diaphana
(d'Orb.), from Cape Hatteras, North
Carolina.
This taxon has been included in the
following genera: Parkeria, Adeorbis
and Teinostoma.
We have some doubts about the
accuracy of the identification made by
BusH (1897) due to its great similarity to
Solariorbis terminalis. The differences
between them are quite minor: The shell
labeled as V. diaphana lacks the subsu-
tural sulcus, its periphery is more
rounded, and some wide depressed
spiral cords are visible on the whole
surface of the shell. At present we shall
keep the taxa separate until topotypes of
V. diaphana become available. Such
material should help in the correct
assignament of both nominal taxa.
Vitrinella tryoni Bush, 1897
Vitrinella helicoidea auct. non C.B. Adams, 1850.
Vitrinella tryoni Bush, 1897. Transactions of the Connecticut Academy of Arts and Sciences, 10:
123, pl. 22, figs. 11-11a. [Type locality: USFC sta. 2278, off Cape Hatteras, North Carolina, 16
fms (29 m)].
Type material: Holotype in USNM (41561).
Descrip tion: BusH (1897).
Maximum reported size: 2 mm.
Distribution: USA: North Carolina
(Bush, 1897); Cuba: North Havana
Province, North Matanzas (AGUAYO €
JAUME, 1936).
Depth: 29 m.
Remarks: The species was misidenti-
fied by TRYON (1888: 102, pl1.34, figs. 40,
41) as V. helicoidea C.B. Adams. The
type of this species (USNM 41561) is
only a fragment and canot be identified
at the species level (Yolanda Villacampa
and Jerry Harasewych, pers. comm.).
FOSSIL OR SUPPOSEDLY FOSSIL SPECIES, NOT RECENT
Many of the fossil species described
in some papers (for example, PILSBRY,
1953) have been recorded in other works
as also occurring in the recent. Other
species, already known as fossil, are
added in this paper to the recent fauna
for the first time. Others yet, only
known as fossil species, are not the main
topic of this work. Of the last group, we
can mention the following;
Anticlimax athleenae (Pilsbry £ McGinty, 1946)
Climacia athleenae Pilsbry ££ McGinty, 1946. The Nautilus, 59: 78-79, pl. 8, figs. 3-3a. [Type local-
ity: Boca Ciega Bay].
Type material: In ANSP (181291).
195
Iberus, 29 (2), 2011
Figures 110A-F. Cyclostremiscus fargoi Pilsbry, 1953. A-C: shell, 1.6 mm, Pliocene of La Belle,
Florida (CHL); D-F: shell, 1.4 mm, Pliocene of La Belle, Florida (CHL).
Figuras 110A-E Cyclostremiscus fargoi Pilsbry 1953. A-C: concha, 1,6 mm, Plioceno de La Belle,
Florida (CHL); D-E: concha, 1,4 mm, Plioceno de La Belle, Florida (CHL).
196
RUBIO £7 41.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Description: In PiLsBRY € MCGINTY Remarks: MOORE (1964) men-
(1946). tions: “This species is known from a
Maximum reported size: 2.6 mm. single. specimen taken Miome $11
Distribution: USA: Florida: West Florida dredged from Boca Ciega Bay. It is
(Pilsbry € McGinty, 1946a); Colombia (DÍAZ here comsidered to be a fossil of
MERLANO éz PUYANA HEGEDUS, 1994). unknown age”.
Aorotrema gardnerae Pilsbry, 1953.
Aorotrema gardnerae Pilsbry, 1953. Monographs of the Academy of Natural Sciences of
Philadelphia, 18: 424, pl. 39, fig. 13. [Type locality: Upper Miocene, Natural Well, Duplin Co.,
North Carolina].
Type material: In ANSP (19550).
Cyclostremiscus fargoi Pilsbry, 1953 (Figures 110A-F)
Cyclostremiscus fargo1 Pilsbry, 1953. Monographs of the Academy of Natural Sciences of Philadel-
phia, 18: 424-425, pl. 56, figs. 1-1c. [Type locality: Plio-Pleistocene, St. Petersburg, Florida].
Type material: ANSP (18399).
Other material examined: USA: 2 s, Pliocene of La Belle, Florida (CHL).
Cyclostremiscus gunteri (Mansfield, 1930)
Circulus gunteri Mansfield, 1930. Florida State Geol. Survey Bull. 3: 132, pl. 20, figs. 16-18. [Type
locality: Upper Miocene, Leon County, Florida].
Type material: In USNM (370493).
Cyclostremiscus olssoni Pilsbry, 1953.
Cyclostremiscus olssoni Pilsbry, 1953. Monographs of the Academy of Natural Sciences of
Philadelphia, 18: 426, pls. 54, figs. 6-6c. [Type locality: Plio-Pleistocene, Shell Creek, Florida].
Type material: In ANSP (18453).
Parviturboides avitus Pilsbry, 1953.
Parviturboides avitus Pilsbry, 1953. Monographs of the Academy of Natural Sciences of
Philadelphia, 18: 436, pl. 56, figs. 3-3a. [Type locality: Plio-Pleistocene, St. Petersburg, Florida].
Type material: In ANSP (18460).
Solariorbis eugenes Pilsbry, 1953 (Figures 111A-D)
Solariorbis eugenes Pilsbry, 1953. Monographs of the Academy of Natural Sciences of Philadel-
phia, 18: 418-419, pl. 54, figs. 1, 1a-b. [Type locality: Plio-Pleistocene, St. Petersburg, Florida].
197
Iberus, 29 (2), 2011
Figures 111A-D. Solariorbis eugenes Pilsbry, 1953. A-C: shell, 4.3 mm (CHL); D: protoconch.
Figuras 111A-D. Solariorbis eugenes Pilsbry 1953. A-C: concha, 4,3 mm (CHL); D: protoconcha.
Type material: In ANSP (18413).
Other material examined: USA, Florida: 1 s, fossil Pleistocene, ST. Petesburg (CHL).
Description: This is the original
description in PILsBRY (1953): “The shell
is solid, somewhat lens-shaped, with
low spire, rounded periphery and a
198
rather narrow, deep umbilicus. There
are 3 Y whorls, the first 1 Y relatively
large, convex and smooth, the next
whorl with about 8 or 9 narrow and
RUBIO £7 4£.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
shallow spiral grooves more or less dis-
tinctly interrupted by retractive radial
striae crossing the grooves. On the last
whorl this sculpture is nearly or wholly
lost, leaving it almost smooth except for
a distinct subsutural margin defined by
a spiral groove. The aperture is oblique,
subcircular but with a grooved upper
angle. The peristome is rather thin. The
columella is widened by a flat, triangu-
lar callus at the end of the rounded
ridge which surrounds and contracts the
umbilicus. The parietal callus is thin, its
outer edge indistinct. Diameter 4.2 mm,
height 2.5 mm”.
Remarks: Plio-Pleistocene fossil
species of St. Petersburg, Florida. We do
not know any current reference for this
species. PILSBRY (1953) commented:
“This appears to be a typical Solariorbis,
having sculpture on the penult whorl
like the type, becoming almost smooth
at the last whorl”. The shell figured does
not appear to be a fossil shell.
Teinostoma caloosaense Dall, 1892
Teinostoma caloosaense Dall, 1892. Trans. Wagner Free Inst. Sci., 3: 413, pl. 23, fig. 8. [Type local-
ity: Plio-Pleistocene, Caloosahatchie River, Florida].
Type material: In USNM (113110).
Teinostoma tectispira Pilsbry, 1953
Teinostoma tectispira Pilsbry, 1953. Monographs of the Academy of Natural Sciences of
Philadelphia, 18: 417, pl. 50, figs. 6-6c. [Type locality: Plio-Pleistocene, St. Petersburg, Florida].
Type material: In ANSP (18406).
SPECIES FROM NEIGHBOURING GEOGRAPHIC AREAS
Neusas marshalli (Sykes, 1925) (Figures 112A-C)
Homalogyra (?) marshalli Sykes, 1925: 193, pl. 9, fig. 9-9a [Type locality: off Portugal, 3942'N,
09%43'W, 1092-1993 m, Porcupine Expedition sta. 17].
Description: SYKES (1925): “Mor-
phology: Shell planispiral, resem-
bling a planorbid, with rounded and
almost smooth whorls with a deep
suture. Protoconch tall-spired and
obliquely inserted, with slightly
more than mo mwhoris. smooth.
Teleoconch with about three slightly
irregularly coiled whorls. Operculum
corneous, multispiral, round with
central nucleus”.
Size: Shell diameter up to 2.06
mm.
Distribution: See WARÉN €
BOUCHET (2001). Mid-Atlantic Ridge:
Menez Gwen hydrothermal vent,
Azores (37.84 N; 31.522W to 9.722W).
Depth: 870 to 860 m (collected alive).
One shell (Fig. 112 D) of Neusas
s.p (Absaláo, pers. com.) showed the
wide distribution of this genus in
south Atlantic.
199
Iberus, 29 (2), 2011
Figures 112A-D. Neusas marshalli (Sykes, 1925). A-C: shells, 2 mm, Menez Gwen hydrothermal
vent, Azores, Atlantic Ocean (with authorization of A. Warén); D: Neusas sp., 1.1 mm, Campos
Basin, Rio de Janeiro, Brazil (with authorization of R. Absaláo).
Figuras 112A-D. Neusas marshalli (Sykes, 1925). A-C: conchas, 2 mm, Menez Gwen hydrothermal
vent, Azores, Atlantic Ocean (con la autorización de A. Warén); D: Neusas sp., 1.1 mm, Campos
Basin, Rio de Janeiro, Brazil (con la autorización de R. Absaláo).
Ponderinella xacriaba Absaláo, 2009 (Figures 113A-C)
Ponderinella xacriaba Absaláo, 2009. American Malacological Bulletin, 27: 138, figs. 2E-H.
[Type locality: BC Sul L, sta. 73, Campos Basin, Rio de Janeiro State, Brazil, 22%41'35”S,
40%00'45”W, 1950 m].
Description: ABSALAO (2009). Distribution: Brazil: Rio de Janeiro.
Maximum reported size: 1.23 mm. Depth: 1030 to 1950 m.
Teinostoma abnorme E.A. Smith, 1890
Teinostoma ?abnorme E.A. Smith, 1890. Proceedings of the Zoological Society of London, 1890:
293, pl. 24, fig. 5. [Type locality: St. Helena].
Description: In SmITH (1890). Distribution: Eastern Atlantic: St.
Maximum reported size: 1 mm. Helena. Only known from its type locality.
200
RUBIO E7 4Z.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 113A-C. Ponderinella xacriaba Absaláo, 2009. (Photographs authorized by R. Absalio)
Figuras 113A-C. Ponderinella xacriaba Absaláo, 2009. (Fotografías autorizadas por R. Absaláo)
SPECIES RECORDED ERRONEOUSLY FROM THE CARIBBEAN
Adeorbis elegans (A. Adams, 1850)
Cyclostrema elegans A. Adams, 1850. Proceedings of the Zoological Society of London, 18: 44.
[Type locality: Sibonga, island of Cebu, Philippines, 10 fathoms (18 m)].
Remarks: It has been reported from its presence in the Caribbean is very
St. Thomas but this is a species improbable.
described from the Philippines and so
Vitrinella regularis (C.B. Adams, 1852)
Renmiuanes:. Holotype.. n= MCEZ cating “Jamaica”. Probably it is an error,
(156374). With the shell is a label indi- because it is a Pacific (Panamic) species.
201
Iberus, 29 (2), 2011
SUPPLEMENT
DUBIOUS SPECIES, APPARENTLY NOT TORNIDAE
These taxa are not the subject of the
present work. Nevertheless, some of
them have been recorded dubiously or
positively in Vitrinellidae. As we
obtained photographs, we present some
of them as information for the reader.
“Aorotrema” erraticum Pilsbry £ McGinty, 1945 (Figure 114A)
Aorotrema erraticum Pilsbry £ McGinty, 1945a. The Nautilus, 59: 1, pl. 11. [Type locality: 1.5
miles off Cape Florida, 12 fms (22 m)].
Material examined: 1 s, Cienfuegos, Cuba (MHNS).
Remarks: MOORE (1964: 189) said:
“the examination of the holotype of A.
erraticum informs that it is a juvenile of
Turbo castaneus Gmelin due to the coin-
cidence of all the details, protoconch,
shape and sculpture”. We accept this
opinion and represent a sample of this
shell.
“Vitrinella tincta” C.B. Adams, 1850 (Figs. 114B-D)
Vitrinella tincta C.B. Adams, 1850. Monograph of Vitrinella: 8.
Type material: The lectotype in MCZ (156257) (figured in CLENCH 6: TURNER, 1950, plate 35 fig. 6)
and 1 second specimen (also figured in CLENCH éz TURNER, 1950, plate 35 fig. 3) labeled as paratype,
in MCZ (186189).
Other material examined: Virgin Islands: 1 s, beach at Magens Bay, N coast of St. Thomas, Virgin
Is. (CHL).
Remarks: This species is repre-
sented by some drawings of the types,
and the description is commented on
in CLENCH é TURNER (1950). The
appearance is not that of a valid
species but rather a juvenile Tegula as
suggested by its colored spots aligned
spirally.
“Vitrinella” carinifex Dall, 1927 (Figures 115A-D)
Vitrinella? Carinifex Dall, 1927. Proceedings of the United States National Museum, 70(2667):
126. [Type locality: Off Georgia].
Type material: Lectotype in USNM (108399) (Figs. 115A-D).
Description: In DaLL (1927).
Distribution: Only known from the
type material, from Georgia, USA.
Range: 30.739; 79.432W. Depth: 805 m.
Remarks: DALL (1927) comments:
“This is probably not a true Vitrinella
and may be immature but certainly is
202
not the young of any of the species enu-
merated in this discussion”.
The lectotype of Vitrinella carinifex
in USNM is not a Vitrinella or a tornid.
In our opinion perhaps it is a young
naticid (see the notch in the columella).
Maximum reported size: 3.7 mm.
RUBIO ET 42.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figure 114A. “Aorotrema” erraticum Pilsbry 82 McGinty, 1945. A: shell, 5.1 mm, Cienfuegos, Cuba
(MHNS). Figures 114B-D. Vitrinella tincta C.B. Adams, 1850. Lectotype (labeled as syntype)
(MCZ 156257).
Figura 114A. “Aorotrema” erraticum Pilsbry € McGinty 1945. A: concha, 5,1 mm, Cienfuegos, Cuba
(MANS). Figuras 114B-D. Vitrinella tincta C.B. Adams, 1850. Lectotipo (etiquetado como sintipo)
(MCZ 156257).
Vitrinella cyclostomoides (L. Pfeiffer, 1840)
Helix (?) cyclostomoides Pfeiffer, 1840. Archiv fúr Naturgeschichte 6(1): 251, [Pfeiffer, 1850, pl.
85, figs. 24-26]. [Type locality: Cuba [Nordkúste (L. PFEIFFER, 1839: 349); Matanzas (L. PFEIFFER,
1854c)].
Description: L. PFEIFFER (1840). Remarks: This species has been
Maximum reported size: 3.2 mm. treated as both terrestrial and marine.
Distribution: Cuba: North Matanzas: L. PFEIFFER (1840) named it a Helix
L. PFEIFFER (1840); L. PFEIFFER (1852). but found his specimen(s) at the
Depth: 0 m. “Seestrande”. He later expressed doubt
203
Iberus, 29 (2), 2011
Figures 115A-D. *Vitrinella” carinifex Dall, 1927. A-C: lectotype, 3.5 mm in diameter (USNM
108399); D: protoconch. (SEM's by Yolanda Villacampa, USNM).
Figuras 115A-D. “Vitrinella” carinifex Dall, 1927. A-C: lectotipo, 3,5 mm de diámetro (USNM
108399); D: protoconcha. (Fotografías al MEB de Yolanda Villacampa, USNM,).
that it was a landsnail (L. PFEIFFER,
1854: 179). ARANGO (1880) treated it as
the valid name for Adeorbis adamesii
and ESPINOSA ET AL. (1995) regarded it
as a valid species of Vitrinella. TRYON
(1887: 100), however, treated it as a
Microphysa and RICHARDSON (1986)
placed it in Hojeda (Sagdidae). It is
not listed among the Cuban Hojeda
by ESPINOSA éz ORTEA (1999), and the
only Cuban Hojeda with a range that
includes Matanzas is Hojeda boothi-
ana (L. Pfeiffer, 1839), a taxon that
Pfeiffer clearly did not consider con-
specific with his elo
cyclostomoides.
Vitrinella hyalina C.B. Adams, 1850
Vitrinella hyalina C.B. Adams, 1850e. Monograph of Vitrinella, a New Genus of New Species of
Turbinidae: 5, Not figured. [Type locality: Port Royal, Jamaica].
Type material: Lost (CLENCH éz TURNER, 1950).
Description: C.B. Adams (1850).
Maximum reported size: 1.7 mm.
Distribution: Jamaica: C.B. ADAMS (1850).
Remarks: Possibly this is a naticid
(see MOORE, 1964: 51).
204
RUBIO £7 4£.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
VITRINELLID SPECIES TRANSFERRED TO OTHER FAMILIES
Family TURBINIDAE Rafinesque, 1815
Some genera of this family are com-
posed of small, lenticular or depressed shells
with a low spire, and for these reasons they
may be confused with Tornidae. Occasion-
ally, some of them have been placed in this
family so we make reference to them here.
Subfamily SKENEINAE Clark, 1851
Genus Cirsonella Angas, 1877
Cirsonella Angas, 1877: 38. Type species, by monotypy, Cirsonella australis Angas, 1877 (Fig.
11A), southern Australia.
Tharsis Jeffreys, 1883: 93 (not Giebel, 1847). Type species, by monotypy, Oxistele romettensis
Granata, 1877, Mediterranean.
Tharsiella Bush, 1897: 113. Replacement name for Tharsis Jeffreys, 1883 not Giebel, 1847.
Porcupinia Cossmamn, 1900: 43. Replacement name for Tharsis Jeffreys, 1883.
Porcup ina Cossmamn, 1925: 287. Misspelling.
Diagnosis: In WARÉN (1991: 159):
“Small skeneimorph gastropods with
almost globular, smooth shell, almost
round, prosocline aperture, with thicken-
ing at umbilicus. Protoconch finely and
irregularly spirally striated. Operculum
sturdy, yellowish with long growth
zone. Radula with four to five undiffer-
entiated lateral teeth and well developed
basal plate on innermost marginal tooth.
Propodial penis not present”.
The operculum of Cirsonella differs
from the typical species of Skeneidae,
having its last 1/3 whorl slowly taper-
ing, while in Skeneidae, it ends
abruptly with an oblique edge cover-
ing about 1/20 of the whorl. Another
differential characteristic is that species
of Cirsonella retract the operculum
only very slightly, or not at all, behind
the peristome, contrary to most
skeneids.
Cirsonella floridensis (Dall, 1927) (Figures 116A-C)
Pseudorotella floridensis Dall, 1927. Proceedings of the United States National Museum
70(2667): 126. [Type locality: Albatross sta. 2668, off Fernandina, Florida [actually off Georgia],
30%58'N, 79*38'W, 294 fathoms (529 m)l.
Type material: Lectotype in USNM (108133). Examined by SEM microphotographs.
Original description: In DaALL (1297):
sshelle small, —porcelaneous- =whtte,
smooth, polished, turbinate, with four
well-rounded whorls; suture distinct,
not deep; aperture nearly circular, the
margin simple, continuous over the
body with a marked deposit of enamel
behind the body lip and over the umbil-
ical region, completely closing the
umbilicus and in the completely adult
sometimes produced in subangulate
form above and below. Height, 2 mm;
maximum diameter, 3 mm”.
We add the following: The proto-
conch measures 260 um in maximum
diameter, smooth and % of a whorl.
There is no sculpture. There are two fine
spiral cordlets in the umbilicus and
there is no umbilical cord bordering it.
In the figured specimen the columellar
callus reduces the umbilicus to a fine
fissure, however, as is explained in
DaLL (1927), in other shells the callus
totally covers the umbilicus. In the inner
part of the aperture and along the col-
umella and the inner lip there is a wide
205
Iberus, 29 (2), 2011
Figures 116A-C. Cirsonella floridensis (Dall, 1927). A-B: lectotype, 2.2 mm in diameter (USNM,
108133); C: protoconch. (SEM's by Yolanda Villacampa, USNM). Figures 116D-E Cirsonella
georgiana (Dall, 1927); D-E: lectotype, 1.95 mm, (USNM, 329375); F: protoconch. (SEM's by
Yolanda Villacampa, USNM).
Figuras 116A-C. Cirsonella floridensis (Dall, 1927). A-B: lectotipo, 2.2 mm de diámetro (USNM,
1 08133); C: protoconcha. (Fotografías al MEB deYolanda Villacampa, USNM). Figuras 116D-E Cir-
sonella E iana (Dall, 1927); D-E: ed 1.95 mm, (USNM, 329375); F: protoconcha. (Foto-
a
grafías al MEB de Yolanda Villacampa, USNM,).
206
RUBIO ET 4£.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
fold which is like an “opercular stop”,
characterístic of the species of the genus
Cirsonella.
The studied shell is 2.2 mm in diame-
ter and 2.2 mm in height.
Habitat: Dredged from 678 meters
depth, in gray sand and broken coral
bottom. Abundant.
Distribution: From off Fernandina
(actually off Georgia) (DALL, 1927); from
North Carolina (PORTER, 1974); ODÉ
(1987a).
Remarks: Actually this species has
been placed in the genus Teinostoma.
DaLL (1927) mentions: “This is much like
Pseudotorella solida, but larger, more ele-
vated, and with the umbilical pad heavier
and more simple”. As in Lydipnis mar-
garitiformis, the morphologic characters
of the shell make one think it is a skeneid,
most probably in the genus Cirsonella
Angas, 1877. The shell studied is very
similar to Cirsonella extrema Thiele, 1912
(USNM 613041), in WARÉN (1991: 212, fig.
11B), being distinguished from it by the
lower number of spiral striae around the
umbilicus. It is also similar to Cirsonella
romettensis (Granata, 1877) even to the
number of the spiral fillets around the
umbilicus, but from that species it differs
by its smooth vs spirally striated, proto-
conch. Based on all the above, we
propose the new combination Cirsonella
floridensis (Dall, 1927).
Cirsonella georgiana (Dall, 1927) (Figs. 116D-F)
Vitrinella georgiana Dall, 1927. Proceedings of the United States National Museum 70(2667): 109.
[Type locality: Off Georgia].
Type material: Lectotype and six paralectotypes in USNM (329375). The lectotype examined by
SEM microphotographs.
Original description: “Shell minute,
glassy white, low turbiniform, with
about three and a half smooth, well-
rounded whorls; nucleus minute,
suture distinct, not deep; aperture sub-
circular, the peristome interrupted by
the body whorl, not reflected, sharp;
base roundly convex, with a minute
perforate umbilicus, partly shadowed
by the inner lip. Height 1.6; diameter, 2
etlectotype is 1.95 mm in
maximum diameter and 1.95 mm in
height.
Habitat: Dredged from 805 meters
depth, on a broken coral, coarse sand,
and broken shell bottom.
Distribution: Only know from the
USA: Georgia, the type locality.
Remarks: As in other described
species, no spiral fine cordlets have been
observed in the umbilicus; but there is a
strong cord delimiting it. Due to the
poor condition of the studied material,
we can not determine if this is a previ-
ously known species. We believe that
Vitrinella georgiana, the present species,
as well as Pseudorotella floridensis and
Lydipnis margaritiformis, all described
by DaLL (1927), are not tornids, but they
may be placed in the subfamily
Skeneinae Clark, 1851, genus Cirsonella.
Thus the new combination should be
Cirsonella georgiana (Dall, 1927).
Cirsonella margaritiformis (Dall, 1927) (Figures 117A-E)
Lydiphnis margaritiformis Dall, 1927. Proceedings of the United States National Museum
70(2667): 123-124. [Type locality: Albatross sta. 2668, off Fernandina, Florida [actually off
Georgia], 30%58'N, 79238'W, 294 fathoms (529 m)]l.
Circulus margaritiformis (Dall, 1927).
Type material: Lectotype (Figs. 117A-C) and a paralectotype in USNM (108146).
207
Iberus, 29 (2), 2011
Description: This is the original
description in DALL (1927: 123-124).
“Shell small, white, smooth, with nearly
four whorls including a minute globular
nucleus, having a general form much
resembling Margarites helicinus; whorls
moderately rounded, the last much the
largest, suture distinct, not deep; surface
smooth except for faint incremental
lines, and on the base two strong widely
spaced threads around the umbilical pit
and a few faint spiral striae behind
them; base rounded, umbilicus minutely
perforate; aperture rounded with a
small angulations above, the peristome
continuous over the body, thin, and not
reflected. Height, 3 mm; diameter, 4
mm ?.
Habitat: Dredged from 678 meters
on a gray sand and broken coral bottom.
Distribution: Only known from the
type material.
Remarks: DALL (1927) Remarked:
“This differs from typical Lydipnis in
being less depressed and without
carinae, but seems most nearly allied to
that genus”.
In our opinion this species is not a
tornid. Its general appearance is that of
a skeneid. The convex whorls,
impressed sutures of the protoconch,
smooth shell, prosocline aperture, and
continuous peristome with a thickening
near the umbilicus place it close to the
genus Cirsonella Angas, 1877. Cir-
sonella characteristically has the opercu-
lum only very slightly, or not at all,
behind the peristome. The margin of the
inner lip edge of this species has a ledge
that probably serves as an opercular
stop. The spiral threads around the
umbilicus place this species close to Cir-
sonella extrema Thiele, 1912 from the
Antartic and to C. australis Angas, 1877
(WARÉN, 1992).
By its general form this species
could be considered closely related to
species of the genus Skenea Fleming,
1825, e.g., Skenea larseni Warén, 1993
and Skenea trochoides (Friele, 1876), but
the shape of the protoconch and the
umbilical thickening distinguish it. Thus
this species is treated as Cirsonella mar-
garitiformis (Dall, 1927).
Genus Mikro Warén, 1996
Mikro cerion (Dall, 1927) (Figures 118A-C)
Vitrinella cerion Dall, 1927. Proceedings of the United States National Museum 70(2667): 125.
[Type locality: Off Georgia, 30.732; 79.432W. Depth: 805 m].
Type material: Lectotype (Fig. 100A-C) in USNM (108433).
Description: In DaLL (1927).
Maximum reported size: 1.8 mm.
Distribution: Only known from the
type material, from Georgia, USA.
Remarks: DALL (1927) mentions:
“The general form recalls that of Helix
chersina Say”. After the examination of
the photographs of the lectotype of Vit-
rinella cerion deposited in USNM, we
reached the conclusion that it is not a
Vitrinella. The smooth, bulbous and
short protoconch (barely Y whorl), the
teleoconch apically keeled on the first
whorl and angled apically on the fol-
lowing, the rounded aperture, the
orthocline outer lip, and the strongly
208
prosocline inner lip impel us to con-
sider its placement in Mikro Warén,
1996, which is characterized by “Very
small, skeneid-like gastropods with
smooth protoconch, apically keeled
first teleoconch whorl and intraumbili-
calce els
The bathymetric range of the
species included in this genus is
between 200 and 1100 m, and its distri-
bution is known in Southern Iceland
and the Mediterranean. The genus
Mikro was placed provisionally in
Skeneidae by WARÉN (1996), and its
systematic position is not known with
certainty, but it was placed in
RUBIO £7 AZ.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 117A-E. Cirsonella margaritiformis (Dall, 1927). A-C: lectotype, 4 mm in diameter
(USNM, 108146); D-E: protoconch. (SEM's by Yolanda Villacampa, USNM).
Figuras 117A-E. Cirsonella margaritiformis (Dall, 1927). A-C: lectotipo, 4 mm de diámetro
(USNM, 108146); D-E: protoconcha. (Fotografías al MEB de Yolanda Villacampa, USNM).
209
Iberus, 29 (2), 2011
Figures 118A-C. Mikro cerion (Dall, 1927). A-B: lectotype, 1.6 ao la diameter (USNM,
108433); C: protoconch. (SEM's by Yolanda Villacampa, USNM).
Figuras 118A-C. Mikro cerion (Dall, 1927). A-B: lectotipo, 1,6 mm de diámetro (USNM, 108433);
C: protoconcha. (Fotografías al MEB de Yolanda Villacampa, USNM).
Archaeogastropoda. This appears well
founded, based on the presence of sen-
sorial papillae on the cephalic tentacles.
For these reasons we consider that the
correct name is Mikro cerion (Dall,
1927). Other species known in the
genus Mikro are: Mikro giustii (Bogi €
Nofroni, 1989) from the Isle of Capri,
Mediterranean Sea and Mikro globulus
(Warén, 1996) from southern Iceland.
Genus Xyloskenea Marshall, 1988
Xyloskenea rhyssa (Dall, 1927) (Figures 119A-D)
Vitrinella rhyssa Dall, 1927. Proceedings of the United States National Museum 70(2667): 125.
[Type locality: Albatross sta. 2668, off Fernandina, Florida [actually off Georgia], 30%58'N,
79238'W, 294 fathoms (529 m)].
Type material: Lectotype in USNM (1081276b).
Descrip tion: In DaLL (1927).
Dimensions: lectotype, 2.1 mm.
Distribution: Only known from the
type material: 30.98%N; 79.64-W.
210
Remarks: The morphological charac-
ters of Vitrinella rhyssa are very similar
to those of the genus Xyloskenea Mar-
shall, 1988. This genus was provision-
RUBIO E7 4Z.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 119. A-D. Xyloskenea rhyssa (Dall, 1927). A-C: lectotype, 2.1 mm in diameter (USNM,
108127b); D: protoconch. (SEM's by Yolanda Villacampa, USNM).
Figuras 119. A-D. Xyloskenea rhyssa (Dall, 1927). A-C: lectotipo, 2,1 mm de diámetro (USNM,
108127b); D: protoconcha. (Fotografías al MEB de Yolanda Villacampa, USNM).
ally placed in Skeneidae, having many
species in bathyal depths, world wide,
and is usually associated with sunken
wood. Conchologically close species
include Xyloskenea costulifera Marshall,
1988 from New Zealand (the type
species of the genus) and Xyloskenea
naticiformis (Jeffreys, 1883) from off
southwestern Iceland to off Portugal
(WARÉN, 1996: 202, figs. 3A-D).
Xyloskenea translucens (Dall, 1927) (Figures 120A-F)
Lydiphnis translucens Dall, 1927b. Proceedings of the United States National Museum 70(2667):
124. [Type locality: Off Georgia].
Circulus translucens (Dall, 1927).
Type material: Lectotype and paralectotype in USNM (108434).
Description: The original description
in DALL (1927: 124) is as follows: “Shell
minute, translucent white, the spire flat-
tened, with three moderately rounded
whorls; axial sculpture of incremental
lines only; spiral sculpture of a thread
slightly in front of the suture and
another beyond the periphery on the
base, tMHese “are. .hardly. prominent
enough to be called carinae; the umbili-
cal pit is wide and shallow, the umbili-
cus itself minutely perforate; aperture
Za l
Iberus, 29 (2), 2011
rather wide, rounded, oblique, the
margin thin, continuous, straight near
the umbilicus. Height, 1.5 mm; diame-
Er 2 Me
The protoconch (Figs. 102E-F) is
about 210 um in maximum diameter
and is % of a whorl, of which the first
half has 4-5 spiral ribs the remaining
part is smooth. A strong varix separates
the protoconch from the teleoconch.
Habitat: Dredged from 805 meters
depth on a broken coral, coarse sand,
and broken shell bottom.
Distribution: Only known from the
type material.
Remarks: DALL (1927) commented:
“Notwithstanding its small size 1t has
the shell" characters cof the cenus
(Lydiphnis). The incremental lines are
rather pronounced”.
In our examination of the shell of
Lydipnis translucens we carefully noted
the depressed spire and the bicarinate
shell as well as the protoconch sculp-
ture.
Based on these characters, L. translu-
cens Closely resembles species of
Xyloskenea Marshall, 1988 such as
Xyloskenea naticiformis (Jeffreys, 1883)
and species of Ventsia Warén «€ Bouchet,
1993 such as Ventsia tricarinata Warén éz
Bouchet, 1993 in both protoconch and
teleoconch characters. These two genera
can be distinguished only by the radula,
being very similar in shell and soft parts
and considered closely related. Another
related genus is Trenchia Knudsen, 1964,
type species T. wolffi Knudsen, 1964, the
species of which have a similar shell
and radula, but their protoconch and
teleoconch differ in being smooth
(WARÉN é BOUCHET, 1993). It must be
mentioned that Xyloskenea naticiformis,
the species with the greatest similarity,
was tentatively referred to Tranchia by
MACLEAN (1992). WARÉN (1996) prefers
a placement in Xyloskenea based on the
similarities in protoconch sculpture and
size.
Taking all the above, as well as the
characters of the protoconch and teleo-
conch, into consideration, we consider
that Lydipnis translucens must be
placed in the genus Xyloskenea, thus
the combination Xyloskenea translucens
(Dall, 1927).
The genus Xyloskenea is comprised
of numerous species in abyssal and
bathyal depths, world wide, and in
every case where the substratum is
known, it is associated with sunken
wood. Closely related genera are
Trenchia Knudsen, 1964 (on sunken
wood, southwestern Pacific) and Ventsia
Warén € Bouchet, 1993 (hydrothermal
vents off Fiji) (WARÉN, 1996).
“Vitrinella” massarita Dall, 1927
Vitrinella massarita Dall, 1927. Proceedings of the United States National Museum 70(2667): 125.
[Type locality: Albatross sta. 2668, off Fernandina, Florida [actually off Georgia], 30%58'N,
79%38'W, 294 fathoms (529 m)!l.
Type material: In USNM (108137) (three specimens).
Description: DALL (1927).
Maximum Reported Size: 1.7 mm.
CONCLUSIONS AND COMMENTS
In the present work, which is focused
on the recent fauna of the family
Tornidae, subfamilies Circulinae, Teinos-
tomatinae, Torninae and Vitrinellinae, the
following 13 genera were studied:
212
Distribution: USA: Georgia: DALL (1927)
Depth: 538 m.
Circulus (4 species), Teinostoma (27
species), Tornus (2 species), Anticlimax
(8 species) Aorotrema (2 species),
Cyclostremiscus (14 species), Cochli-
olepis (9 species), Episcynia (1 species),
RUBIO E7 42.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Figures 120A-E. Xyloskenea translucens (Dall, 1927). A-D: lectotye, 2.0 mm in diameter, (USNM,
108434); E-F: spire and protoconch. (SEM's by Yolanda Villacampa, USNM).
Figuras 120A-E Xyloskenea translucens (Dall, 1927). A-D: lectotipo, 2,0 mm de diámetro, (USNM,
108434); E-F: espira y protoconcha. (Fotografías al MEB de Yolanda Villacampa, USNM).
Parviturboides (1 species), Pleuroma-
laxis (1 species), Solariorbis (16 species),
Vitrinella (15 species), and Vitrinorbis (1
species).
In total, about 2700 specimens and
shells were examined. This is a large
number of shells, but if we consider that
the number of species included in the
work is about 100, it may seem less
imposing. Furthermore, if we consider
the fact that some of them are common,
and that we have studied large lots such
as Cochliolepis parasitica (more than
340 shells), Vitrinella anneliesae (about
290 shells) or Parviturboides interruptus
(about 250 shells), it is clear that many
ES
Iberus, 29 (2), 2011
other species were available only in
small numbers. For example, almost 20
species were known from only 1 shell,
and, in a little more than half of the
total (57 species), each was represented
by less than 9 shells.
This scarcity may be due to various
causes: 1-the small size of most of the
species; 2- the habitat (unknown for
most of them) which could be in
crevices among rocks or symbiotic with
other organisms; 3- the small number
of malacologists who give attention to
micromolluscs; 4- the difficulty of
finding these minute specimens in old
collections, many times lost or suffer-
ing from problems in conservation due
to fungi, humidity, acidic glass, etc.
Nonetheless we were able to study
101. species of Tornidae in the
Caribbean and neighboring regions. Of
this total, 86 were previously known,
and 23 are described as new to science;
2 more are presented as “sp.” because
of doubts about their taxonomic valid-
ity or inadequacy of material.
A lectotype is here designated for
each of the following species: Teinos-
toma reclusum, Teinostoma solidum,
and Parviturboides interruptus, all in
the MCZ, Solariorbis petitii in the
MNHN, Episcynia inornata in the
NHMUK, and Cochliolepis parasitica
in the USNM.
A new name is proposed: Vitrinella
solaris nom. nov. pro “Cyclostrema”
thomasi Pilsbry, 1945 non Vitrinella
thomasi Bartsch, 1918.
Three neotypes are designated: for
Teinostoma megastoma and Teinos-
toma semistriatum in MCZ, and for
Circulus orbignyi in the MNHN.
Some types from the Dall and K.J.
Bush collections, all in USNM, are
imaged for first time by SEM: Teinos-
toma minuscula (holotype); Vitrinella
diaphana (d'Orbigny, 1842); “Vit-
rinella” carinifex; Pseudorotella flori-
densis, Vitrinella georgiana, Lydiphnis
margaritiformis, Vitrinella cerion, Vit-
rinella rhyssa, Lydiphnis henderson1,
and Lydiphnis translucens. Also
Cochliolepis parasitica and Vitrinella
tincta.
214
From the examination of the types
of DALL (1927), we concluded that “Vit-
rinella” carinifex, Vitrinella cerion, Vit-
rinella rhyssa, Vitrinella georgiana,
Pseudorotella floridensis, Lydiphnis
margaritiformis and Lydiphnis translu-
cens are not tornids but skeneids
included in the genera Cirsonella,
Micro and Xyloskenea, thus creating the
new combinations: Cirsonella floriden-
sis, Cirsonella georgiana, Cirsonella
margaritiformis, Mikro cerion, Xyloske-
nea rhyssa, and Xyloskenea translucens.
We examined types of all these species
except Vitrinella massarita and could
not suggest a generic placement only
for “Vitrinella” carinifex.
Many types of species belonging to
different families were also studied in
order to ascertain that they could not be
placed in the Tornidae. Sometimes shell
morphology is sufficient to allow place-
ment in genus and family. On other
occasions this determination is not
easily made. For this reason, we have
presented an annotated list of species
which can be included in the Tornidae
and of others which were excluded
because they were fossil species or
probably from other groups. This ancil-
lary information is presented to provide
future researchers with all the possible
information on the species of this group
and taxa with which they have been
confused.
The following species, previously
considered in synonymy, are treated as
valid species:
Teimostoma nessaeum and Teinos-
toma obtectum are not synonyms of
Teinostoma biscaynense.
Cyclostremiscus trilix is not a
synonym of Cyclostremiscus pen-
tagonus.
Cyclostrema thomasi is not a
synonym of Vitrinella filifera.
On the other hand, Teinostoma
clavium is herein considered a
synonym of Teinostoma semistriatum.
Two species previously placed in
the genus Cyclostremiscus: Cyclostrem-
iscus caraboboensis and C. schrammil
are placed in the genus Tornus on the
basis of the similarity of the morpholog-
RUBIO £7 AZ.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
ical characters of their shells with
species of this genus in the West coast
of Africa.
In relation with the bathymetric
range, the tornids usually do not live in
very deep water, most species inhabit-
ing bottoms between the subtidal level
and the first 30 meters of the infralitoral
level. But in relation to the depth data
of empty shells collected and in most
bibliographic records, the conclusions
could be different, appearing in deeper
water, probably due to the orography of
the bottom and marine currents. Of the
species studied, 65 have been found
between 0 and 60 m, and 18 more have
been found also in circalitoral and
bathyal levels, one of them (Teinostoma
reclusum) having been recorded from
1170 m. For many species the bathyme-
try is unknown due to the dearth of
bottom samples and predominance of
beach drift in collections. The group of
species of the genus Cyclostremiscus
including C. dalli, C. pentagonus, C.
trilix, and C. hendersoni seem to have a
deeper bathymetric range, all of them
reaching between 500 and 800 m.
APPENDIX
SPECIES THAT WERE INCLUDED IN TORNIDAE AND NOW BELONG
TO OTHER FAMILIES
Family LIOTIDAE Gray, 1850
Genus Cyclostrema Marryat, 1818
Cyclostrema cancellatum Marryatt, 1818
Cyclostrema fulgidum Jeftreys, 1883
Cyclostrema rugulosum G.O. Sars, 1878
Cyclostrema valvatoides Jeffreys, 1883
Cyclostrema pompholyx Dall, 1889 (is now placed in the genus Parviturbo)
Cyclostrema turbinum Dall, 1889
Family TURBINIDAE Rafinesque, 1815
Subfamily SKENEINAE Clark, 1851
Genus Ganesa Jeffreys, 1883
Ganesa proxima Tryon, 1888
Ganesa bushae Dall, 1927
Ganesa conica Dall, 1927
Ganesa depressa Dall, 1927
Ganesa valvata Dall, 1927
Ganesa diaphana A.E. Verrill, 1884
Ganesa striata Bush, 1897
Ganesa convexa Bush, 1897
Ganesa verrilli Tryon, 1888
Ganesa ornatam A.E. Verrill, 1884
Ganesa dalli A.E. Verrill, 1882
Ganesa abyssicola Bush, 1897
2D
Iberus, 29 (2), 2011
Figures 121A-E. Dillwynella modesta Dall, 1889. A-E: syntypes, 1.4, 1.6 mm (MCZ 007657).
Figuras 121A-E. Dillwynella modesta Dall, 1889. A-E: sintipos, 1,4, 1,6 mm (MCZ 007657).
Genus Granigyra Dall, 1889
Granigyra limata Dall, 1889
Granigyra radiata Dall, 1927
Granigyra spinulosa Bush, 1897
Genus Dillwynella Dall, 1889
Dillwynella modesta (Dall, 1889) (Figures 121A-E)
Dillwynella modesta Dall, 1889. Bull. MCZ, 18: 362-363, pl. 21, figs. 3-3a. [Type locality: Blake sta.
215, off St. Lucia, 226 fathoms].
Type material: Three syntypes, MCZ (007657).
Genus Molleriopsis Bush, 1897
Molleriopsis abyssicola Bush, 1897
Molleriopsis sincera Dall, 1889
Genus Leptogyra Bush, 1897
Leptogyra verrilli Bush, 1897
Leptogyra inconspicua Bush, 1897
Leptogyra eritmeta Bush, 1897
PS
RUBIO ET 42Z.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Family LEPETELLIDAE Dall, 1881
Genus Choristella Bush, 1897
Choristella leptalea Bush, 1897
Choristella brychia Bush, 1897
Family ODOSTOMIIDAE Pelseneer, 1928
Genus Cyclostremella Bush, 1897
Cyclostremella humilis Bush, 1897
ACKNOWLEDGEMENTS
The authors offer thanks to Dr. Jerry
Harasewych and Yolanda Villacampa
of the Smithsonian Institution (USNM)
for their help in the study of Cochli-
olepis parasitica and many other types
deposited in this institution. To Adam
J. Baldinger, for the loan of material of
Tornidae, including some types from
MCZ, and his cooperation with the use
of this material. To Marlo Krisberg of
Merrit Islands for the loan of material
from his collection. To Colin Redfern of
Boca Raton for the same. To Flaviano
for sending material from Itaparica,
Brazil. To Jacques Pelorce, from Paris,
for sending material collected on his
trips to the Caribbean. Also to Dr.
Harry G. Lee, of Jacksonville, Florida,
who put his collection at our disposal,
authorizing the photography of all the
necessary material, and donating
several types of the new species unique
to his collection. Also for his revision
during the editing period of this work.
The type material of Cyclostremis-
cus multiliratus was obtained
through support by the National
BIBLIOGRAPHY
ABBOTT R.T. 1954. American seashells. D. Van
Nostrand Company, Inc., Princeton, NJ,
xiv + 541 pp, 40 pls.
ABBOTT R.T. 1974. American seashells: the
marine Mollusca of the Atlantic and Pa-
cific coasts of North America, 2nd ed. Van
Nostrand Reinhold Company. New York,
663 pp, 24 pls.
Science Foundation under Grant No.
0515995:
To Jesus Méndez and Inés Pazos of
the Centro de Apoyo Científico y Tec-
nológico a la Investigación (CACTI)
of the University of Vigo for most of
the SEM images; also to Ramiro Bar-
reiro Pérez of the Centro de Apoyo
Científico y Tecnológico of the Uni-
versity of Santiago de Compostela
(CACTUS) for some micrographs.
To the Museo de Historia Natural
“Luis Iglesias”, of the University of
Santiago de Compostela, its director
Dr. María Isabel Fraga Vila, for coop-
eration during the entire study sup-
porting all the necessary material,
microphotography, correspondence,
etc.
To Ricardo Absaláo and Petrobras
S.A. (Brazilian Oil company) which
authorized the use of photographs
from Campos Basin, Rio de Janeiro.
To Anders Warén who authorized
the use of Neusas photographs.
Javier Conde made the corrections
to the English language.
ABBOTI R.I. € DANCE-S. P. 1982. Com.-
pendium of seashells: a color guide to more
than 4,200 of the world's marine shells. E.
P Dutton, New York, x -I- 411 [+ 1] pp.
ABSALAO R.S. 2009. New small deep-sea
species of Gastropoda from the Campos
Basin off Brazil. American Malacological
Bulletin, 27: 133-140.
ZA
Iberus, 29 (2), 2011
ABSALAO R.S. € PIMENTA A.D., 2005. Moluscos
marinhos da Apa do Archipelago de San-
tana, Macaré, RJ. Ciencia Moderna, Rio de Ja-
neiro. 84 pp.
ADAM W. 4: KNUDSEN J. 1969. Quelques genres
de Mollusques prosobranches marins in-
connus ou peu connus de l'Afrique occi-
dentale. Bulletin Institut Royal des Sciences
Naturelles de Belgique, 44(27): 1-69.
ADAMS A. 1850. Monographs of Cyclostrema,
Marryat, and Separatista, Gray, two genera
of gasteropodous mollusks. Proceedings of
the Zoological Society of London 1850: 41-45.
ADAMS C.B. 1850. Monograph of Vitrinella, a
New Genus of New Species of Turbinidae 10
pp. Author, Amherst, Massachusetts.
ADAMS A. 1866. Monographs of the genera Cy-
clostrema, Adeorbis, and Teinostoma. The-
saurus Conchyliorum.Sowerby, G.B. (ed.) 3:
249-262.
AGUAYO C.G. 1949. Tres nuevos moluscos ma-
rinos de las costas de Cuba. Revista de la So-
ciedad Malacológica “Carlos de la Torre” 6:
93-96, pl. 4.
AGUAYO C. 8 BORRO P. 1946a. Nuevos molus-
cos del Terciario Superior de Cuba. Revista
de la Sociedad Malacologica “Carlos de la To-
rre” 4(1): 9-12, pl. 1.
AGUAYO C. BORRO P. 1946b. Algunos mo-
luscos Terciarios de Cuba. Revista de la So-
ciedad Malacologica “Carlos de la Torre”
4(2): 43-49, pl. 3.
AGUAYO C. €: JAUME M.L. 1936. Sobre algunos
moluscos marinos de Cuba. Memorias de la
Sociedad Cubana de Historia Natural “Felipe
Poey” 10(2): 115-122.
ALTENA C.O. van R. 1966. Vitrinellidae (ma-
rine Mollusca Gastropoda) from holocene
deposits in Surinam (Dutch Guiana). Zoolo-
gische Mededelingen, 41: 233-241.
ALTENA C.O. van R. 1975. The marine mollusca
of Suriname (Dutch Guiana) Holocene and
Recent. Part Il. Gastropoda and
Cephalopoda. Zoologische Verhandelingen,
139: 1-104, pls. 12.
ANDREWS J. 1977. Shell and Shore of Texas.
University of Texas Press. Austin, United
States. Journal of Molluscan Studies, 47: 248-
Z
ANDREWS J. 1994. A field guide to shells of the
Florida coast. Gulf Publishing, Houston. 182
pp-
ARANGO R. 1880. Contribucion a la Fauna Ma-
lacologica Cubana. 137-280, 1-35. G. Mon-
tiel: Habana. 15 Jul.
BIELER R. 6: MIKKELSEN P.M. 1988. Anatomy
and reproductive biology of two western
Atlantic species of Vitrinellidae, with a case
of protandrous hermaphroditism in the
Rissoacea. The Nautilus, 102(1): 1-29.
218
BOUCHET P. éz ROCROIJ.P. (Ed.); ErydaJ., Haus-
dorf B., Ponder W., Valdés Á. € Warén A.
2005. Classification and nomenclator of gas-
tropod families. Malacolo gía, 47(1-2): 397 pp.
ConchBooks, Hackenheim, Germany.
BoYKoO C.B. ££ CORDEIRO J.R. 2001. Catalog of Re-
cent type specimens in the division of inver-
tebrate zoology , American Museum of Na-
tural History . V . Mollusca, part 2 (class Gas-
tropoda [exclusive of Opisthobranchia and
Pulmonata ], with supplements to Gastro-
poda [ Opisthobranchia ], and Bivalvia. Bu-
lletin of the American Museum of Natural
History, 262: 3-158.
Bush K.J. 1885. List of the shallow-water Mol-
lusca dredged off Cape Hatteras by the “Al-
batross” in 1883. Annual Reportof the United
States Commissioner of Fish and Fisheries,
1883: 579-595.
Bush K.J. 1897. Revision of the marine gas-
tropods referred to Cyclostrema, Adeorbis,
Vitrinella, and related genera; with descrip-
tions of some new genera and species be-
longing to the Atlantic fauna of Amer-
ica. Transactions of the Connecticut Acad-
emy of Arts and Sciences, 10: 97-144, pls.
22-23.
CAMPBELL L.D. 1993. Pliocene molluscs from
the Yorktown and Chowan river formations
in Virginia. Virginia Division of Mineral Re-
sources, Publication 127, 1-259,
CLARKE H.C. 1962. On the composition, zoo-
geography, origin and age of the deep-sea
mollusk fauna. Deep Sea Research and
Oceanographic Abstracts, 9(7-10): 291-306.
CLENCH W.J. 6: TURNER R.D., 1950. The western
Atlantic marine mollusks described by C.B.
Adams. Occasional Papers on Mollusks, 1(15):
233-403 incl. pls. 29-49.
COOLEY N.P. 1978. An inventory of the estuar-
ine fauna in the vecinity of Pensacola, Florida.
Florida Marine Research Publications, 33:
1i+119.
CORGAN J.X. 1968. New name for Vitrinella
tenuisculpta Aguayo y Borro (Gastropoda).
Nomenclatural Notes. Journal of Paleontol-
ogy, 43: 1298.
COSEL R. VON 1986. Moluscos de la región de la
Ciénaga Grande de Santa Marta (costa del Ca-
ribe colombiano) Anales del Instituto de In-
vestigaciones Marinas de Punta Betín, 15-16:
79-370
DaLL W.H. 1889a. Reports on the results of
dredgings, under the supervision of Alexan-
der Agassiz, in the Gulf of Mexico (1877-78)
and in the Caribbean Sea (1879-80), by the U.
S. Coast Survey Steamer “Blake”. Bulletin of
the Museum of Comparative Zoology, 18: 1-
492, pls. 10-40.
RUBIO £7 AL.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
DaALL W.H. 1889b. A preliminary catalogue of
the shell-bearing marine mollusks and bra-
chiopods of the south-eastern coast of the
United States, with illustrations of many of
the species. Bulletin of the United States Na-
tional Museum, 37: 221 p., pps. 1-74.
DaLL W.H. 1892. Contributions to the Tertiary
fauna of Florida, with especial reference to the
Miocene silex-beds of Tampa and the Pliocene
beds of the Caloosahatchie River. Part II.
Streptodont and other gastropods, con-
cluded. Transactions of the Wagner Free In-
stitute of Science of Philadelphia, 3 [i-viil:
201-473, 1 fold-out map, pls. 13-22.
DaLL W.H. 1889. Report on the results of dred-
ning by the U. S. Coast survey steamer
“Blake”. XXIX. Report on the Mollusca, part
II. Gastropoda and Scaphopoda. Bulletin of
the Museum of Comparative Zoology, 18: 1-
492, pls. 10-40.
DaLL W.H. 1903. Contributions to the Tertiary
fauna of Florida with especial reference to
the Silex Beds of Tampa and the Pliocene
Beds of the Caloosahatchie River including in
many cases a complete revision of the generic
groups treated of and their American Ter-
tiary species. Part VI. Concluding the work.
Transactions of the Wagner Free Institute of
Science of Philadelphia, 3(4): i-xiv, 1219- 1654,
pls. 48-60.
DaLL W.H. 1927. Small shells from dredgings
off the southeast coast of the United States by
the United States Fisheries steamer Albatross
in 1885 and 1886. Proceedings of the United
States National Museum, 70(2667): 1-134.
Díaz MERLANO J.M. € PUYANA HEGEDUS M.
1994. Moluscos del Caribe colombiano. Un ca-
tálogo ilustrado. Colciencias. Fundación Na-
tura. Invermar. Santa Fé de Bogotá, 291 pp,
74 pls.
EMERSON W.K. éz JACOBSON M.R. 1976. The
American Museum of Natural History, Guide
to shells. Alfred A. Knopf, New York. 482
pp, 47 pls.
ESPINOSA J., FERNÁNDEZ-GARCÉS R. 6 ROLÁN E.
1985. Catálogo actualizado de los moluscos
marinos de Cuba. Reseñas Malacológicas, 9:
1-90.
ESPINOSA J. 6 ORTEA J. 2001. Moluscos del mar
Caribe de Costa Rica: Desde Cahuita hasta
Gandoca. Avicennia (Supl. 4): 1-77.
FABER MJ. 1995. New data on mollusk species
described by Gordon W. Nowell-Usticke. De
Kreukel 31: 59-69.
FABER M.J. 2007. Marine gastropods from the
ABC Islands and other localities 20. Sola-
riorbis semipunctus Moore, 1965 (Gastro-
poda: Vitrinellidae), first records for Florida,
USA and Curacao. Miscellanea Malacologica,
2(4): 84. Figs. 1-3.
FISCHER P. 1857. Études sur un groupe de co-
quilles de la famille des Trochidae. Journal de
Conchyliolo g1e, 6: 42-53, 168-176, 284-288, pl.
10.
FIscHER P. 1880-1887. Manuel de conchyliolo-
gie et de paléontologie conchyliologique ou
histoire naturelle des mollusques vivants et
fossiles suivi d'un appendice sur les Bra-
chiopodes. Savy, Paris, xxiv + 1-1569 + 23
pls., facing pl. explanations. [1-112 (1880);
113-304 (1881); 305-416 (1882); 417-608 (1883);
609-688 (1884); 689-896 (1885); 897-1008 (1886);
1009-1369 (1887)].
FOLIN L. DE 1870. Vera-Cruz et Carmen. Les
Fonds de la Mer 1: 181-191, pls. 23, 25-56
Savy: Paris.
FRETTER V. 1956. The anatomy of the proso-
branch Circulus striatus (Philippi) and a re-
view of its systematic position. Proceedings
ofthe Zoological Society of London, 126: 369-
381.
FRETTER V. 1984. Prosobranchs. In: Wilbur et
al. (eds.). The Mollusca, Vol. 7, Reproduc-
tion. Academic Press, New York and Lon-
don, p. 1-45.
FRETTER V. € GRAHAM A. 1962. British proso-
branch molluscs: their functional anatomy
and ecology. Ray Society, London, xvi -1- 755
pie:
FRETTER V. é: GRAHAM A. 1964. Reproduction.
In: Wilbur, K. M. and C. M. Yonge (eds).
Physiology of Mollusca, Vol. 1. Academic
Press, New York and London, p. 127-164.
FRETTER V. 82 GRAHAM A. 1978. The prosobranch
molluscs of Britain and Denmark. Part 4 —
Marine Rissoacea. Journal of Molluscan Stud -
1es, Supplement 6: 153-241.
GABB W.M. 1873. On the Santo Domingo
Miocene and its Fossils. Proceedings Amer-
ican Philosophy Society, 12: 571-573.
GABB W.M. 1881. Descriptions of new species
of fossils from Pliocene Clay Beds between
Limon and Moen, Costa Rica, together with
notes on previously known species from there
and elsewhere in the Caribbean area. Journal
of the Academy of Natural Sciences of
Philadelphia, 8: 349-380, 4 pls.
GARCIA E.F. 2002. More discoveries from a col-
lecting expedition off the Louisiana coast.
American Concholo gist 30(1): 6-7, 10.
GARCÍA-CUBAS A. 1970. Ecologia y distribución
de los micromoluscos recientes de la Laguna
Madre, Tamaulipas, Mexico. Universidad
Autonoma de Mexico, Instituto de Geología,
Boletin 86: 1+1v+1-44, 2 foldouts tables, 8 pls.
GARCÍA-CUBAS A. 1971. Estudios oceanográfi-
cos y biológicos de reconocimiento en la Ba-
hía de Guaymas. Instituto de Biología, Uni-
versidad Nacional Autónoma de México. 87
p., tablas, figs. y mapas.
219
Iberus, 29 (2), 2011
GARCÍA-CUBAS A. € REGUERO M., 1990. Mo-
luscos del sistema lagunar Tupilco-Ostión,
Tabasco, México: Sistemática y Ecología.
Anales del Instituto de Ciencias del Mar y
Limnología, Universidad Nacional Autó-
noma de México, 17(2): 309-343.
GARCÍA-CUBAS A., ESCOBAR-DE LA LLATA F.,
GONZÁLEZ L. V. 6 REGUERO M. 1990. Mo-
luscos de la laguna Mecoacán, Tabasco, Mé-
xico: Sistemática y Ecología. Anales del Ins-
tituto de Ciencias del Mar y Limnología,
Universidad Nacional Autónoma de Mé-
xico IAN SO:
GARDNER J. 1948. Mollusca from the Miocene
and lower Pliocene of Virginia and North
Carolina. Part 2. Scaphopoda and Gas-
tropoda. U.S. Geological Survey Professional
Paper, 199-B: 1-111, 179-310, pls. 24-38.
GOFAS S., PINTO AFONSO J. £ BRANDAO M.
1985. Conchas e moluscos de Angola. Uni-
versidad de Agostinho Neto / Elf Aquitaine.
Angola. 139 pp.
GRAHAM A. 1982. Tornus subcarinatus (Proso-
branchia, Rissoacea), anatomy and rela-
tionships. Journal of Molluscan Studies, 48:
144-147.
GurrY R.J.L. 1866. On the Tertiary Mollusca of
Jamaica. Quarterly Journal of the Geological
Society of London, 22(1): 281-295, pls. 16-18.
HICKMAN C.S. £ MCLEAN J.H. 1990. System-
atic revision and suprageneric classification
of trochacean gastropods. Natural History
Museum of Los Angeles County, Science
Senes od 11Óo.
HOLMES F.S., 1858-1860 [published in parts].
Post-Pleiocene Fossils of South Carolina.
Russell and Jones, Charleston, 1-98 p, 14 pls.
[R. E. Petit offers a collation of this rare se-
rial work: Title page (dated 1860); verso:
name of printer and engraver. Dedication
page; verso: Preface and acknowledgements.
[1] - xii - Introduction, [i]-v - Index; v verso:
Errata, 1-64, pls. 1-10 - Cover for Nos. 1 é€z 2
with printed date of 1858. “3, 4 + 5” plus “2
plates to a number” added in pen; 65-98,
pls. 11-14 - Cover for “Nos. 6 and 7” with
printed date of 1859.].
HOUBRICK J.R. 1967. Notes on Cyclostremis-
cus schrammii. The Nautilus, 80(4): 131-133.
HOUBRICK J.R. 1968. A survey of the litoral ma-
rine molluscs of the Caribbean coast of Costa
Rica. Veliger, 11: 4-23.
Jacor A.P. 1921. Some marine shells of Beau-
fort and vicinity. Journal of the Elisha
Mitchell Scientific Society, 36: 129-145, pls.
11-13.
JAUME M.L. € BORRO P. 1946. Novedades en
moluscos marinos Cubanos. Revista de la So-
ciedad Malacologica “Carlos de la Torre”,
4(1): 13-22, pl. 2.
220
JEFFREYSJ.G. 1865. British conchology, or an ac-
countof the Mollusca which now inhabit the
British Isles and the surrounding seas. Vol.
II. Marine shells, comprising the remaining
Conchifera, the Solenoconchia, and Gas-
teropoda as far as Littorina.]. van Voorst,
London, 393 (+ 1) p., 8 pls.
JerFREYS J.G. 1883 On the Mollusca procured
during the “Lightning” and “Porcupine” ex-
peditions 1868-70. Part VI. Proceedings of
the Zoological Society of London, 1882: 88-
149.
JONG K.M. DE é£ COOMANS H.E. 1988. Marine
gastropods from Curacao, Aruba and
Bonaire. Studies on the Fauna of Curagao
and other Caribbean Islands, 69. E.J. Brill.
261 pp, 47 pls.
JOHNSON C.W. 1934. List of marine Mollusca of
the Atlantic coast from Labrador to Texas.
Proceedings of the Boston Society of Natural
History, 40(1): 1-204.
JOHNSON R.I. 1989. Molluscan taxa of Addison
Emery Verrill and Katharine Jeannette Bush,
including those introduced by Sanderson
Smith and Alpheus Hyatt Verrill. MCZ Pub-
lications on Mollusks, Occasional Papers on
Mollusks, 5: 1-143.
KEEN A.M. 1960. In R. C. Moore (ed.), Treatise
on Invertebrate Paleontology, Part 1, Mol-
lusca 1. Mollusca - general features,
Scaphopoda, Amphineura, Monoplacophora,
Gastropoda - general features, Archaegas-
tropoda, mainly Paleozoic Caenogastropoda
and Opisthobranchia. Geological Society of
America éz Univ. Kansas Press, Boulder, CO
and Lawrence KS, xxiii + pp. 1-351.
KURTZ J.D. 1860. Catalogue of Recent marine
shells, found on the coasts of North and South
Carolina. Portland, David Tucker.ME 9 pp.
LANGE-DE-MORRETES F. 1949. Ensaio de catálogo
dos moluscos do Brasil. Archos Mus. Paraná,
7(1): 3-216.
LEE H. G. 2009. Marine shells of northeast
Florida. Jacksonville Shell Club, Jacksonville,
204 pp., 19 pls.
Lyons W.G. 1989. Nearshore marine ecology at
Hutchinson Island, Florida: 1971-1974. XI.
Mollusks. Florida Marine Research Publica-
tions, 47: i+iv, 1-131.
MARSHALL B.A. 1988. Skeneidae, Vitrinellidae
and Orbitestellidae (Mollusca: Gastropoda)
associated with biogenic substrata from ba-
thyal depths off New Zealand and New South
Wales. Journal of Natural History, 22: 949-
1004.
MAURY CJ. 1922. Recent Mollusca of the Gulf
of Mexico and Pleistocene and Pliocene
species from Gult states. Part 2: Scaphopoda,
Gastropoda, Amphineura, Cephalopoda. Bul-
letins of American Paleontolo gy, 9(38): 33-172.
RUBIO £7 42.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
MELLO R.L.S. € PERRIER, L.L. 1986. Polypla-
cophora e Gastropoda do litoral sul de Per-
nambuco, Brasil. Cadernos Omega da Uni-
versidade Federal Rural de Pernambuco 2:
107-144.
MIKKELSEN P.M., MIKKELSEN P.S. 6: KARLEN
D.J. 1995. Molluscan biodiversity in the In-
dian River Lagoon, Florida. Bull. Mar. Sci.,
57: 94-127.
MOORE D.R. 1964. The family Vitritiellidae in
South Florida and the Gulfof Mexico. Ph. D.
dissertation. University of Miami, Coral
Gables, FL, xi + 235 (+ 2) pl.
MOORE D.R. 1965. New species of Vitrinellidae
from Gulf of Mexico and adjacent waters.
The Nautilus, 78(3): 73-79, pls. 7-8.
MOORE D.R. 1969. Cyclostrema miranda
Bartsch, a synonym of Tornus subcarinatus
Montagu. The Veliger, 12(2): 169-170.
MOORE D.R. 1972. Cochliolepis parasitica, a
non parasitic marine gastropod, and its place
in the Vitrinellidae. Bulletin of Marine Sci-
ence, 22(1): 100-112.
MORRIS P.A. 1973. A field guide to shells of the
Atlantic and Gulf coasts and the West In-
dies. Hougton Mifflin Co., Boston. 330 pp, 76
pls.
NORDSIECK, F. 1968. Die europdischen Meeres-
Geháuseschneken. G. Fischer, Sttutgart. 273
pp:
NOWwELL-UsTICKE G.W. 1959. A Check Listof the
Marine Shells of St. Crotx, U.S Virgin Is-
lands. Lane Press, Burlington. 90 pp., 4 pls.
NOWELL-USTICKE G.W. 1971. A Supplementary
Listing of New Shells (Illustrated) Revised
Edition. to be Added to the Check Listof the
Marine Shells of St. Croix. Author: San Croix,
Virgin Islands, 32 pp., 6 pls.
ODÉ H. 1969. Cochliolepis parasitica Stimpson.
Texas Conchologist 5(7): 73-74.
ODÉ H. 1987a. Distribution and records of the
marine Mollusca in the northwest Gulf of
Mexico, families Skeneidae, Vitrinellidae.
Texas Conchologist, 23(4): 110-121.
ODÉ H. 1987b. Distribution and records of the
marine Mollusca in the northwest Gulf of
Mexico, family Vitrinellidae. Texas Con-
chologist, 24(1): 21-40.
ODÉ H. 1988. Distribution and records of the ma-
rine Mollusca in the northwest Gulf of Mex-
ico, family Vitrinellidae. Texas Concholo-
gist, 24(2): 59-72.
OLIVER J.D. € ROLÁN E. 2011. The family
Tornidae (Gastropoda, Rissooidea) in the
East Atlantic, 2. Circulinae. Iberus, 29(1): 9-
99:
OLSSON A.A. 飣 HARBISON A. 1953. Pliocene
Mollusca of southern Florida. Monographs
of the Academy of Natural Sciences of
Philadelphia, 18: 1-457 + 65 pls.
OLssoN A.A. 8 MCGINTY T. L. 1958. Recent
marine mollusks from the Caribbean coast of
Panama with the description of some new
genera and species. Bulletins of American
Paleontology, 39: 1-58, pls. 1-5.
ORBIGNY A. D' 1842. Mollusques Histoire Phy-
sique, Politique et Naturelle de lle de Cuba,
2. Arthus Bertrand, Paris. pp 1-112, pls. 1-7.
ORTIZ-CORPS E. 1985. An annotated checklist of
the Recent marine Gastropoda (Mollusca)
from Puerto Rico. Memorias del Quinto Sim-
posto de la Fauna de Puerto Rico y el Caribe
1220 pp:
PARKER R.H. 1959. Macro-invertebrate assem-
blages of central Texas coastal bays and La-
guna Madre. AAPG Bulletin, 43: 2100-2166.
PARKER R.H. € CURRAY J.R. 1956. Fauna and ba-
thymetry of banks on continental shelf, north-
west Gulf of Mexico. Bulletin of the Ameri-
can Association of Petroleum Geologists,
40(10): 2428-2439.
PFEIFFER L. 1839. Bericht ber die Ergebnisse
meiner Reise nach Cuba im Winter 1838-
1839. Archiv fiir Naturgeschichte 5(1): 346-
358.
PFEIFFER L. 1840. Uebersicht der im Januar, Fe-
bruar und Márz 1839 auf Cuba gesammelten
Mollusken. Archiv fir Naturgeschichte, 6(1):
250-261.
PFEIFFER L. 1850. Die Schnirkelschnecken nebst
den zunáchst verwandten Gattungen. Sy-
stematische Conchylien-Cabinet 1: 1-32, pls.
12*,:85, 87, 89, 93, 96, 102-106, 110-112,114.
PFEIFFER L. 1854. Zur Molluskenfauna der In-
sel Cuba. Malakozoologische Blátter 1: 170-
215:
PIÉSBRY HA. 1939. .A new Floridan Cy-
clostrema. The Nautilus, 53: 53, pl. 8.
PiLsBRY H.A. 1946. The type specimens of C.B.
Adams's Jamaican species of Vit-
rinella. MNotulae Naturae of the Academy
of Natural Sciences of Philadelphia, 1162: 1-
5, figs. 1-6.
PiLsBRY H.A. 1953. Pliocene Mollusca of South-
ern Florida. Part II-A. The Vitrinelli-
dae. Monographs of the Academy of Natural
Sciences of Philadelphia, 18: 411-438, pls. 49-
56.
PirsBRY H.A. £ AGUAYO C.G. 1933. Marine
and freshwater mollusks new to the fauna
of Cuba. The Nautilus, 46: 116-123, pl. 6.
RIESBRY TL:AS Se MEGINTY EL. 19454. “Cy=
clostrematidae” and Vitrinellidae of Florida.
Part 1. The Nautilus, 59(1): 1-13, pls. 1, 2.
PILSBRY H.A. €: MCGINTY T.L. 1945b. “Cy-
clostrematidae” and Vitrinellidae of Florida.
Part 2. The Nautilus, 59(2): 52-59, pl. 6.
PiLSBRY FLA. € MCcGINTY T.L. 1946a. “Cy-
clostrematidae” and Vitrinellidae of Florida.
Part 3. The Nautilus, 59(3): 77-83, pl. 8.
ZLl
Iberus, 29 (2), 2011
PiLsBRY H.A. €: MCGINTY T.L. 1946b. Vitrinelli-
dae of Florida, Part 4. The Nautilus, 60(1): 12-
15 7pli2:
PiLsBRY H.A. 6: MCGINTY T.L. 1950. Vitrinellidae
of Florida: Part 5. The Nautilus, 63(3): 85-87,
plo!
PiLsBRY H.A. 6: OLSSON A.A. 1945. Vitrinellidae
and similar gastropods of the Panamic
Province. Part I. Proceedings of the Academy
of Natural Sciences of Philadelphia, 97:249-278,
pls. 22-30.
PiLsBRY H.A. 8: OLSSON A.A. 1952. Vitrinellidae
of the Panamic Province: II. Proceedings of
the Academy of Natural Sciences of Philadel-
phia, 104: 35-88, pls. 2-13.
PONDER W.F. 1988. The Truncatelloidean (=Ris-
soacean) radiation- A preliminary phylogeny:
Prosobranch phylogeny. Malacological Re-
view, Supplement, 4: 129-164.
PONDER W.F. 1994. The Malacofauna of Hong,
Kong and Southern China II (ed. B. Morton).
Proceedings of the Third International Work-
shop on the Malacofauna of Hong Kong and
Southern China, Hong Kong, 13 April-1 May
1992. Hong Kong University Press, 1994.
PONDER W.F. 82 W.ARÉN A. 1988. Classification of
the Caenogastropoda and Heterostropha —a
list of the family-group names and higher taxa.
Malacological Review, Supplement 4: 288-317.
PORTER H.J. 1974. The North Carolina marine
and estuarine mollusca: An atlas of Occur-
rence. University North Carolina Institute of
Marine Science, Morehead City, North Car-
olina, 351 pp.
Prinez D. 1973. Los moluscos gasterópodos y pe-
lecípodos del estado de Nueva Esparta, Ve-
nezuela. Memoria, Sociedad de Ciencias Na-
turales La Salle, 33: 169-222.
Princz D. 1977. Notas sobre algunos micromo-
luscos de la plataforma de Guyana. Memoria,
Sociedad de Ciencias Naturales La Salle,
36(108): 283-293.
PrINcz D. 1978. Los moluscos marinos del Golfo
de Venezuela. Memoria, Sociedad de Cien-
cias Naturales La Salle, 109: 51-76.
PrINCZ D. 1982. Lista y bibliografia de los gaste-
rópodos marinos vivos de los mares de Ve-
nezuela, Trinidad e Islas de Sotavento. Bole-
tín de la Sociedad Venezolana de Ciencias Na-
turales, 37: 103-147.
Princz D. 1986. Bionomie des micromollusques
benthiques du nord -est du Venezuela. Tesis de
Doctorado, Université de Bretagne Occiden-
tale, Brest, 176 pp.
RADWIN G.E. 1969. A recent molluscan fauna
from the Caribbean coast of southeastern
Panama with special reference to those from
north Saint Petersburg. Monographs of the
Academy of Natural Sciences of Philadelphia,
8: 411-438, pls. 49-56.
ZZZ
REDFERN C. 2001. Bahamian seashells. A thou-
sand Species from Abaco, Bahamas. Ba-
hamiansehlls.com Inc. Boca Raton, 280 pp,
124 pls.
REED J.K. 82 MIKKELSEN P.M. 1987. The mol-
luscan community associated with the scle-
ractinian coral Oculina varicosa. Bulletin of
Marine Science, 40: 99-131.
REGUERO M., GARCÍA-CUBAS A. 6z ZÚNIGA G.,
1991. Moluscos de la laguna Tampamachoco,
Veracruz, México: Sistemática y Ecología.
Anales del Instituto de Ciencias del Mar y
Limnología, Universidad Nacional Autó-
noma de México, 18(2): 289-328.
RICE W.H. €: KORNICKER L.S. 1965. Mollusks
from the deeper waters of the northwestern
Campeche Bank, Mexico. Publications of the
Institute of Marine Science, 10: 108-172.
RICHARDSON C.L. 1986. Polygyracea: Catalogue
of species (Parts 1, Polygyridae; 2, Corilli-
dae; 3 Sagdidae). Tryonia, 13: 1-139, 1-4, 1-
38.
Rios E.C. 1975. Brazilian marine mollusks ico-
nography. Museu Oceanografico, Fundacáo
Universidade do Rio Grande, Rio Grande, 331
pp, 91 pls.
RIOS E.C. 1994. Seashells of Brazil. Fundacao Ci-
dade do Rio Grande, Rio Grande, 345 pp,
113 pls.
Rios E.C. 2009. Compedium of Brazilian Sea
Shell. Universidade Federal Rio Grande, 668
pp-
ROBINSON D.G. 1991. The systematics and pa-
leoecology of the prosobranch gastropods
of the Pleistocene Moín formation of Costa
Rica. Doctoral dissertacion, Tulane Univer-
sity, New Orleans, Louisiana. 748 pp.
ROBINSON D.G. € MONTOYA M. 1987. Los mo-
luscos marinos de la costa Atlántica de Costa
Rica. Revista Biología Tropical, 35: 375-400.
ROLÁN E., FERNÁNDEZ-GARCÉS R. € RUBIO
F. 1997. Una nueva especie de Anticlimax
(Gastropoda: Vitrinellidae) de Cuba. Iberus,
15: 31-34.
ROLÁN E. 4 RUBIO F. 2002. The family Tornidae
(Gastropoda, Rissooidea) in the East Atlantic.
Supl. Reseñas Malacologicas, SEM: 1-98.
RUBIO F. €££ RODRÍGUEZ BABÍO C. 1991. Sobre la
posición sistemática de Pseudorbis granu-
lum Brugnone, 1873 (Mollusca, Archaeo-
gastropoda, Skeneidae) y descripción de
Pseudorbis jameoensis n. sp. procedente de
las Islas Canarias. Iberus, 9(1-2): 203-207.
RUBIO F. € ROLÁN E. 1998. Una nueva especie
de Tomura (Gastropoda, Heterobranchia,
Cornirostridae) del Caribe. Iberus, 16(1): 119-
128%
RUBIO F. € ROLÁN R. 2009. Sobre la posición sis-
temática de Teinostoma azorica Dautzen-
berg éz Fischer, 1896. Noticiario SEM, 52: 55-
56.
RUBIO £7 ALz.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
SAGRA R. DE LA. 1831. Historia Económico-Po-
lítica y Estad ística de la Isla de Cuba. Arazoza
y Soler. 12 Tomos. Segunda parte, Historia
Natural. Atlas de Zoología, Tomo VIII. Pa-
ris. Librería de Arthus Bertrand.
SARASÚA H. 1970. Prosobranquios marinos nue-
vos para la fauna de Cuba (Mollusca: Pro-
sobranchia). Poeyana, 72: 1-20.
SCHWENGEL J.S. £ MCGINTY T.L. 1942. Some
new and interesting marine shells from north-
west Florida. The Nautilus, 56: 13-18, pl. 3.
SMITH E.A,, 1871. A list of species of shells from
West Africa, with description of those hith-
erto undescribed. Proceedings of the Zoo-
logical Society of London, 1871: 727-739.
SMITH E.A. 1890. Report on the marine mol-
luscan fauna of the island of St. He-
lena. Proceedings of the Zoological Society
of London 1890: 293, pl. 24, fig. 5. Type lo-
cality: St. Helena]
SMITH M. 1937. Further notes upon Tertiary
and Recent mollusks from Florida together
with descriptions of new species. The Nau-
tilus, 51(2): 65-66, pi. 6.
STIMPSON W. 1858. On Cochliolepis parasiti-
cus. Proceedings of the Boston Society of
Natural History, 6: 307-309.
STIMPSON C.T. 1887. Contributions to the Mol-
lusca of Florida. Proceedings of the Daven-
port Academy of Natural Sciences, 5: 45-72.
SYKES E.R. 1925. On the Mollusca procured dur-
ing the “Porcupine” Expeditions, 1869-70.
Supplemental notes, part V. Proceedings of
the Malacological Society of London 16: 181-
195, plo.
THIELE J. 1929-1935. Handbuch der Systemati-
schen Weichtierkunde. 2 vols. 1154 p., 584
figs.
TREECE G.D. 1980. Bathymetric records of ma-
rine shelled Mollusca from the Northeast-
ern shelf and upper slope of Yucatan, Mex-
ico. Bulletin of Marine Science, 30(3): 552-
570.
TRYON G.W. 1887. Manual of Conchology (sec-
ond series). 3 Helicidae:- vol. 1. Academy of
Natural Sciences: Philadelphia. xii + [1]-313
+ 63 pls.
TRYON G.W. 1888. Monograph of the families
Neritidae, Neritopsidae, Adeorbiidae, Cy-
clostrematidae, and Liotiidae. Manual of
Conchology 10. Academy of Natural Sci-
ences: Philadelphia. 3-160, pls. 1-36.
TUNNELL J.W. €z CHANEY A.H. 1970. A check-
list of the mollusks of Seven and One-Half
Fathom Reef, Northwestern Gulf of Mexico.
Cont. Marine Science University Texas., 15:
192-203.
VANATTA E.G. 1904. A list of shells collected in
western Florida and Horn Island, Missis-
sippi. Proceedings of the Academy of Natural
Sciences of Philadelphia, 55: 756-759.
VANATTA E.G. 1913. Descriptions of new species
of marine shells. Proceedings of the Acad-
emy of Natural Sciences of Philadelphia, 65:
22-27, pL.2.
VERRILL A.E. 1882. Catalogue of marine Mol-
lusca added to the fauna of the New England
region, during the past ten years. Transactions
of the Connecticut Academy of Arts and Sci-
ences, 5: 451-587, pls. 42-44, 57-58.
VERRILL A.E. 1884. Second catalogue of Mollusca
recently added to the fauna of the New Eng-
land coast and the adjacent parts of the Atlantic,
consisting mostly of deep-sea species, with
notes on others previously
recorded. Transactions of the Connecticut
Academy of Arts and Sciences, 6: 139-294, pls.
28-32.
VOKES H.E. € VOKES E.H. “1983” [1984]. Distri-
bution ofshallow-water marine Mollusca, Yu-
catan Peninsula, Mexico. Mesoamerican Ecol-
ogy Institute Monograph 1, Middle Ameri-
can Research Institute Publication, 54: viii, 183
pp, 50 pls.
WARÉN A. 1991. New and little known
“Skeneimorph” gastropods from the Mediter-
ranean Sea and the adjacents Atlantic Ocean.
Bolletino Malacologico, 27(10-12): 149-248.
WAREN A. 1996. New and little known mollusca
from Iceland and Scandinavia. Part 3. Sarsia,
81: 197-245.
WARÉN A. 6: BOUCHET P. 1993. New records,
species, genera and a new family of gastropods
from hydrothermal vents and hydrocarbon
seeps. Zoologica Serip ta, 22: 1-90.
WARÉN A. 6 BOUCHET P. 2001. Gastropoda and
Monoplacophora from Hydrotermal vents
and hydrocarbon seeps; new taxa and records.
The Veliger, 44(2): 116-231.
WARMKE G.L. € ABBOTT R.T. 1961. Caribbean
seashells: a guide to the marine mollusks of
Puerto Rico and other West Indian Islands,
Bermuda and the Lower Florida Keys. Liv-
ingston Publishing Company, Wynnewood,
PA. 348 pp., 44 pls.
WAass M.L. 1972. A check list of the biota of lower.
Chesapeake Bay. Va. Inst. Mar. Sci. Spec. Sci.
Rept. No. 65, 290 p.
WEISBORD N.E. 1962. Late Cenozoic gastropods
from northern Venezuela. Bulletins of Amer-
ican Paleontology, 42(193): 1-672, 48 pls.
WILEY G.N., CIRCÉ R.C. 82 TUNNELL J.W. JR. 1982.
Mollusca of the rocky shores of east central Ve-
racruz State, Mexico. The Nautilus, 96: 55-61.
WOODRING W.P. 1928. Miocene mollusks from
Bowden, Jamaica. Part II: Gastropods and dis-
cussion of results. Carnegie Institution of Wash-
ington. Publication, 395: vii + 564 p., 40 pls.
WOODWARD M.F. 1898. On the anatomy of Ade-
orbis subcarinatus, Montagu. Proceedings
of the Malacological Society of London, 3: 140-
146, pl. 8.
LS
RUBIO £7 4£.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
ALPHABETICAL INDEX OF GENERA AND SPECIES
Plate numbers, page numbers
abnorme, Teinostoma
abyssicola, Ganesa
abyssicola, Molleriopsis
adamsil, Cochliolepis
Adeorbis
Adeorbis adamsii
Adeorbis beauli
Adeorbis elegans
Adeorbis infracarinata
Adeorbis nautiliformis
Adeorbis omalos
Adeorbis orbignyi
Adeorbis supranitidus
aguayoi, Vitrinella
altum, Teinostoma
anastomosis, Teinostoma
Anticlimax annae
anneliesae, Vitrinella
Annulicallus
anomala, Vitrinella
Anticlimax
Anticlimax annae
Anticlimax athleenae
Anticlimax crassilabris
Anticlimax decorata
Anticlimax glabra
Anticlimax hispaniolensis cratera
Anticlimax locklin:
Anticlimax pilsbryl
Anticlimax proboscidea
Anticlimax schumoi
antillensis, Solariorbis
Aorotrema
Aorotrema cistrontum
Aorotrema erraticum
Aorotrema gardnerae
Aorotrema pontogenes
aristata, Vitrinella
athleenae, Anticlimax
avitus, Parviturboides
avunculus, Teinostoma
SL,
62,
112,
101,
23,
12,
40,
90,
108,
40,
35,
37,
36,
41,
39,
38,
37,
73,
42,
114,
98,
200
215
216
108
201
108
84
201
139
162
192
195
135
202
197
173
195
197
191
Plate numbers, page numbers
baldingeri, Ternostoma
balesi, Parviturbo1des
bartschi, Cyclostremiscus
beauti, Cyclostremiscus
biscaynense, Teinostoma
blake1, Solariorbis
brychia, Choristella
bushae, Ganesa
calliglyp ta, Vitrinella
caloosaense, Teinostoma
canaliculata, Vitrinella
Canimarina
caraboboensis, Tornus
carinata, Vitrinella
carinicallus, Teinostoma
carinifex, “Vitrinella”
cerion, Mikro
Choristella
Choristella brychia
Choristella lep talea
cienfuegosense, Teinostoma
Circulus
Circulus bicarinatus
Circulus cubanus
Circulus dalli
Circulus gunteri
Circulus hendersoni
Circulus liratus
Circulus margaritiformis
Circulus orbignyl
Circulus quadricristatus
Circulus semisculp tus
Circulus stirophorus
Circulus striatus
Circulus suppressus
Circulus texanus
Circulus translucens
Circulus trilix
Cirsonella
Cirsonella extrema
Cirsonella floridensis
10, 24
AL ASS
49, 95
43, 84
14, 29
74, 137
102, 181
77 T/3
39, 63
32, 6l
115, 202
118, 208
29, 56
106, 197
116, 205
229
Iberus, 29 (2), 2011
Plate numbers, page numbers
Cirsonella margaritiformis 117,
ciskae, Teinostoma 5,
cistrontum, Aorotrema 42,
Climacia
Climacia athleenae
Climacia tholus
Climacina
Cochliolepis
Cochliolepis adamst 57,
Cochliolepis differens 66,
Cochliolepis holmesti 58,
Cochliolepis nautiliformis 59,
60,61,62,
Cochliolepis patriciol 65,
Cochliolepis parasitica
Cochliolepis planispiralis 64,
Cochliolepis sp. 67,
Cochliolepis striata 63,
Cochliolepis surinamensis
cocolitoris, Teinostoma 26,
conica, Ganesa
contracta, Vitrinella 91,
convexa, Ganesa
crassilabris, Anticlimax 35,
cubanus, Cyclostremiscus 54,
cupidinensis, Vitrinella 103,
cyclostomoides, Vitrinella
Cyclostrema
Cyclostrema angulatum
Cyclostrema bartschi
Cyclostrema bicarinatum
Cyclostrema cistrontum
Cyclostrema elegans
Cyclostrema gordana
Cyclostrema interrup tum
Cyclostrema pontogenes
Cyclostrema sanibelense
Cyclostrema schrammii
Cyclostrema zacalles
“Cyclostrema” thomasi
Cyclostremella humilis
Cyclostremiscus
Cyclostremiscus bartschi 49,
Cyclostremiscus beauil 43,
Cyclostremiscus caraboboensis
226
207
5
80
67
195
74
67
108
108
123
109
112
ap2
120
118
123
118
189
50
Zi
164
ZIS
68
103
181
203
215
84
95
84
80
201
86
129
81
128
64
129
186
ZN
83
99,
84
63
Plate numbers, page numbers
Cyclostremiscus crassilabris
Cyclostremiscus cubanus
Cyclostremiscus dalli
Cyclostremiscus diminutus
Cyclostremiscus euglyptus
Cyclostremiscus fargoi
Cyclostremiscus gunteri
Cyclostremiscus hendersont
Cyclostremiscus jeannae
Cyclostremiscus major
Cyclostremiscus microstriatus
Cyclostremiscus multiliratus
Cyclostremiscus olssoni
Cyclostremiscus pentagonus
Cyclostremiscus puntagordensis
Cyclostremiscus salvatierrensis
Cyclostremiscus suppressus
Cyclostremiscus trilix
Cyclostremiscus vanbruggeni
dalli, Cyclostremiscus
dalli, Ganesa
decorata, Anticlimax
Delphinoidea
Delpinula depressa
diaphana, Ganesa
differens, Cochliolepis
Dillwynella
Dillwynella modesta
diminutus, Cyclostremiscus
Discopsis omalos
Discopsis schumoi
elegans, Adeorbis
elegans, Solariorbis
elegans, Vitrinorbis
Ellipetylus
Episcynia
eritmeta, Leptogyra
erraticum, Aorotrema
Ethalia multistriata
Ethalia reclusa
Ethalia solida
eugenes, Solariorbis
euglyptus, Cyclostremiscus
expansum, Teinostoma
54,
45,
53,
55,
110,
48,
50,
56,
44,
46,
51,
47,
52,
45,
E
66,
121,
53,
75,
106,
114,
111,
55,
16,
68
103
88
100
105
197
197
93
97
86
105
86
197
10,88
103
108
97
Sil
100
88
ZAS
70
181
18S
215
123
215
216
100
189
189
201
199
186
50
LS)
216
202
145
21
48
197
105
34
RUBIO ET 42.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Plate numbers, page numbers
fargo1, Cyclostremiscus
filifera, Vitrinella
floridana, Vitrinella
floridensis, Cirsonella
funiculus, Vitrinella
Ganesa
Ganesa bushae
Ganesa conica
Ganesa convexa
Ganesa dalli
Ganesa depressa
Ganesa diaphana
Ganesa ornatam
Ganesa proxima
Ganesa valvata
Ganesa verrilli
gardnerae, Aorotrema
georgiana, Cirsonella
glabra, Anticlimax
goniogyrus, Teinostoma
Granigyra
Granigyra limata
Granigyra radiata
Granigyra spinulosa
gutanensis, Solariorbis
gunteri, Cyclostremiscus
helicinum, Teinostoma
helicoidea, Vitrinella
Helix cyclostomoides
hemphilli, Vitrinella
hendersoni, Cyclostremiscus
110,
104,
96,
116,
92;
19,
27,
94, 95,
48,
hispaniolensis cratera, Anticlimax 41,
holmesti, Cochliolepis
Homalogyra marshalli
hondurasensis, Solariorbis
humilis, Cyclostremella
hyalina, Vitrinella
Idioraphe
incertum, Teinostoma
inconspicua, Leptogyra
infracarinatus, Solariorbis
mornata, Episcynia
Interruptus, Parviturboides
jeannae, Cyclostremiscus
58,
167,
197
184
pz
205
165
24119)
Z15
ZAD
215
215
Z15
SAUS)
215
Z15
215
ZAS
197
207
70
16
216
216
216
216
189
197
53
195
203
192
93
78
109
199
190
287
204
24, 29, 33
11,
76, 77,
68, 69,
70, 71,
50,
24
216
189
126
129,
7
Plate numbers, page numbers
lenticulare, Teinostoma
leptalea, Choristella
Leptogyra
Leptogyra eritmeta
Leptogyra inconspicua
Leptogyra verrilli
lerema, Teinostoma
limata, Granigyra
lineopunctatus, Solariorbis
liratus, Circulus
lituspalmarum, Teinostoma
locklini, Anticlimax
lunense, Teinostoma
Lydiphnis dalli
Lydiphnis hendersoni
Lydiphnis margaritiformis
Lydiphnis translucens
margaritiformis, Cirsonella
marshalli, Neusas
massarita, “Vitrinella”
megacallum, Teinostoma
megastoma, Teinostoma
microstriatus, Cyclostremiscus
Mikro
Mikro cerion
minusculum, Teinostoma
modesta, Dillwynella
Molleriopsis sincera
mooreanus, Solariorbis
morlierei, Teinostoma
multiliratus, Cyclostremiscus
multistriatus, Solariorbis
nautiliformis, Cochliolepis
Nemafera compressa
nesaeum, Teinostoma
Neusas
Neusas marshalli
obtectum, Teinostoma
olssoni, Cyclostremiscus
Omalaxis funiculus
Omalaxis lirata
omalos, Discopsis
opsitelotus, Vitrinella
orbigny1, Circulus
7,
117,
112,
31,
28,
56,
118,
20,
121,
78,
44,
79,
59
17,
112,
15,
93,
E)
216
216
216
216
216
Z15
155
Za
Iberus, 29 (2), 2011
Plate numbers, page numbers
ornatam, Ganesa
Paludinella helicoides
panamense, Teinostoma
parasitica, Cochliolepis
parvicallum, Temnostoma
Parviturbo
Parviturbo zacalles
Parviturboides
Parviturboides avitus
Parviturboides balesi
Parviturboides interruptus
parvum, Teinostoma
patricio1, Cochliolepis
pauli, Pleuromalaxis
pelorcei, Vitrinella
pentagonus, Cyclostremiscus
petiti, Solariorbis
pilsbryi, Anticlimax
planispiralis, Cochliolepis
Pleuromalaxis
Pleuromalaxis pauli
Ponderinella
Ponderinella xacriaba
pontogenes, Aorotrema
Porcupinia
proboscidea, Anticlimax
proxima, Ganesa
pseudoaristata, Vitrinella
Pseudomalaxis
Pseudomalaxis balesi
Pseudorbis granulum
Pseudorotella carinicallus
Pseudorotella floridensis
Pseudorotella minúscula
Pseudorotella pusilla
Pseudorotella semistriata
punctostriatus, Solariorbis
pusilla, Vitrinella
radiata, Granigyra
reclusum, Teinostoma
regularis, Vitrinella
rhyssa, Xyloskenea
Rotella carinata
Rotella cryptospira
228
13,
60,61,62,
30,
72,
70, 71,
65,
100,
46,
107,
38,
64,
ZS
1159
29
Jo
DY
132
129
128
197
133
129
192
120
190
176
88
190
ZO
118
182
133, 190
113,
3,
99,
87,
108G, 109,
8, 9,
119,
200
200
81
205
73
ZO
176
132
SS
132
61
205
41
193
38
157
193
215
Z il
201
210
16
43
Plate numbers, page numbers
Rotella lenticularis
Rotella pusilla
Rotella umbellicata
ruris, Solariorbis
schrammii, Tornus
schumoi, Anticlimax
schumoi, Solariorbis
semipunctus, Solariorbis
semisculptus, Circulus
semistriatum, Teinostoma
sincera, Molleriopsis
Skenea larseni
Skenea petiti
Skenea sulcata
Skenea trilix
Skenea trochoides
Solariorbis
Solariorbis aguayol
Solariorbis antillensis
Solariorbis bassilisus
Solariorbis blake1
Solariorbis corylus
Solariorbis decipiens
Solariorbis elegans
Solariorbis eugenes
Solariorbis euzonus
Solariorbis gutanensis
Solariorbis hondurasensis
Solariorbis infracarinatus
Solariorbis lineopunctatus
Solariorbis mooreanus
Solariorbis multistriatus
Solariorbis opsitelotus
Solariorbis petitii
Solariorbis punctostriatus
Solariorbis ruris
Solariorbis schumo1
Solariorbis semipunctus
Solariorbis solidus
Solariorbis sp.
Solariorbis terminalis
Solariorbis truncatus
solaris, Vitrinella
Solarium inornatum
85,
34,
79,
74,
75,
111,
139,
73,
76, 77,
86,
78,
79,
107,
87,
85,
8l,
82,
88, 89,
86,
3, 84,
80,
105,
RUBIO £7 41.: The family Tornidae (Gastropoda, Rissooidea) in the Caribbean
Plate numbers, page numbers
solidum, “Teinostoma”
solidus, Solariorbis
sp. , Cochliolepis
sp., Solariorbis
spinulosa, Granigyra
striata, Cochliolepis
striata, Ganesa
Striovitrinella
suppressus, Cyclostremiscus
surinamensis, Cochliolepis
tectispira, Teinostoma
Teinostoma
Teinostoma (Ethalia) suppressa
Teinostoma altum
Teinostoma anastomosis
Teinostoma avunculus
Teinostoma baldingeri
Teinostoma bartschi
Teinostoma biscaynense
Teinostoma caloosaense
Teinostoma carinicallus
Teinostoma cienfuegosense
Teinostoma ciskae
Teinostoma clavium
Teinostoma cocolitoris
Teinostoma expansum
Teinostoma funiculus
Teinostoma goniogyrus
Teinostoma helicinum
Teinostoma hondurasensis
Teinostoma incertum
Teinostoma lenticulare
Teinostoma lerema
Teinostoma lituspalmarum
Teinostoma lunense
Teinostoma megacallum
Teimostoma megastoma
Teinostoma millepunctata
Teinostoma minusculum
Teinostoma morlierei
Teinostoma nesaeum
Teinostoma obtectum
Teinostoma opsitelotus
Teinostoma panamense
24,
88, 89,
67,
86,
63,
139,
51,
139,
20,
17,
15,
13,
48
159
123
159
ZN
118
215
181
97
189
199
14
97
46
2h
191
24
142
29
199
61
56
15
38
50
34
165
16
D9
190
24
19
43
61
50
59
54
15
41
19]
36
33
167
2)
Plate numbers, page numbers
Teinostoma parvicallum
Teimostoma parvum
Teinostoma pilsbryi
Teimostoma politum
Teinostoma proboscidea
Teinostoma reclusum
Teinostoma schumo1
Teinostoma semistriatum
“Teinostoma” solidum
Teimostoma tectispira
Teinostoma umbilicatum
terminalis, Solariorbis
Texanus, Circulus
Tharsiella
Tharsis
tincta, Vitrinella
Tornus
Tornus caraboboensis
Tornus schramm il
translucens, Xyloskenea
trilix, Cyclostremiscus
Trochus (Rotella) anómala
Trochus (Rotella) carinata
Trochus (Rotella) diaphana
Trochus (Rotella) semistriata
Trochus inornatum
truncatus, Solariorbis
tryon1, Vitrinella
umbilicatum, Teinostoma
valvata, Ganesa
vanbruggeni, Cyclostremiscus
verrilli, Ganesa
verrilli, Leptogyra
Vitrinella
Vitrinella aguayol
Vitrinella anneliesae
Vitrinella anomala
Vitrinella aristata
Vitrinella blakei
Vitrinella calliglyp ta
Vitrinella canaliculata
Vitrinella carinata
Vitrinella cerion
Vitrinella contracta
307 97
192
23
14
73
90) 32
147
18,19, 38
24, 48
199
22, 44
83,84, 150
11
205
205
114, 202
63
33, 63
34, 64
1207-2111
47, 91
192
192
193
38
126
80, 145
195
22, 44
Z15
52, 100
Z15
216
159
101, 178
90, 162
108, 192
98, 173
197
102, 181
IS ALZO
192
208
91, 164
229
Iberus, 29 (2), 2011
Plate numbers, page numbers
Vitrinella cupidinens
Vitrinella cyclostomoides
Vitrinella diaphana
Vitrinella elegans
Vitrinella filifera
Vitrinella floridana
Vitrinella funiculus
Vitrinella georgiana
Vitrinella helicoidea
Vitrinella hemphilli
Vitrinella holmesti
Vitrinella hyalina
Vitrinella interrup ta
“Vitrinella” massarita
Vitrinella megastoma
Vitrinella mooreana
Vitrinella multicarinata
Vitrinella opsitelotus
Vitrinella panamensis
Vitrinella pelorcei
Vitrinella pentagonus
Vitrinella praecox
Vitrinella pseudoaristata
230
94, 95,
103, 157, 181
203
139)
59
104, 184
IS 17d
O2AAIOS
207
LO USO
192
109
204
125429
ZA
54
143
126
OS 1O67
DO YY
100, 176
88
167
OO
Plate numbers, page numbers
Vitrinella pusilla
Vitrinella regularis
Vitrinella rhyssa
Vitrinella semisculp ta
Vitrinella solaris
Vitrinella tenuisculp ta
Vitrinella terminalis
Vitrinella texana
Vitrinella thomasi
Vitrinella tincta
Vitrinella truncata
Vitrinella tryoni
Vitrinella tryoni
“Vitrinella” carinifex
Vitrinorbis
Vitrinorbis callistus
Vitrinorbis elegans
xacriaba, Ponderinella
Xyloskenea
Xyloskenea costulifera
Xyloskenea naticiformis
Xyloskenea rhyssa
Xyloskenea translucens
108G, 109,
105,
115,
106,
113,
119,
120,
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inglés. Dicho resumen deberá sintetizar, en conjunción con el título, tanto los resultados como las conclusiones
del artículo; se sugiere una extensión de 100 a 200 palabras.
Páginas siguientes. Incluirán el resto del artículo, que debe dividirse en secciones precedidas por breves enca-
bezamientos. Siempre que sea posible, se recomienda seguir el siguiente esquema: Introducción, Material y
métodos, Resultados, Discusión, Conclusiones, Agradecimientos y Bibliografía. Si se emplean abreviaturas no
habituales en el texto, deberán indicarse tras el apartado de Material y Métodos.
e Las notas breves deberán presentarse de la misma forma, pero sin resumen.
e Deberán evitarse notas a pie de página y referencias cruzadas. Deberán respetarse estrictamente los Códigos
Internacionales de Nomenclatura Zoológica y Botánica (últimas ediciones). Cuando un taxón aparezca por
primera vez deberá citarse su autor y fecha de su descripción. En el caso de artículos sistemáticos, cuando se
den las sinonimias de los taxones, éstas deberán citarse COMPLETAS, incluyendo en forma abreviada la
publicación donde fueron descritas, y la localidad tipo si es conocida entre corchetes, según el siguiente
esquema (préstese especial cuidado a la puntuación):
Dendrodoris limbata (Cuvier, 1804)
Sinonimias
Doris limbata Cuvier, 1804, Ann. Mus. Hist. Nat. Paris, 4 (24): 468-469 [Localidad tipo: Marsella].
Doris nigricans Otto, 1823, Nov. Act. Ac. Caes. Leop.-Car., 10: 275.
Dichas referencias no deberán incluirse en la lista de Bibliografía si es la única vez que se nombran en el texto.
Si se incluyen una lista completa de referencias de un taxón inmediatamente tras éste, deberá seguirse el
mismo esquema (sin incluir en Bibliografía las referencias que no se mencionen en otro lugar del texto).
e Sólo los nombres en latín y los de taxones genéricos y específicos deberán llevar subrayado sencillo o prefe-
rentemente ir en cursiva. En ningún caso deberá escribirse una palabra totalmente en letras mayúsculas, ni
siquiera el Título. Las unidades a utilizar deberán pertenecer al Sistema Métrico Decimal, junto con sus correc-
tas abreviaturas. En artículos escritos en castellano, en los números decimales sepárese la parte entera de la
decimal por una coma inferior (,), NUNCA por un punto (.) o coma superior (').
e Las referencias bibliográficas irán en el texto con minúsculas o versalitas: Fretter y Graham (1962) o FRETTER
Y GRAHAM (1962). Si son más de dos autores se deberán citar todos la primera vez que aparecen en el texto
[Smith, Jones y Brown (1970)] empleándose et al. las siguientes veces [Smith et al. (1970)]. Si un autor ha publi-
cado más de un trabajo en un año se citarán con letras: (Davis, 1989a; Davis, 1989b). No deberá emplearse op.
cit. La lista de referencias deberá incluir todas las citas del texto y sólo éstas, ordenadas alfabéticamente. Se
citarán los nombres de todos los autores de cada referencia, sea cual sea su número. Los nombres de los
autores deberán escribirse, en letras minúsculas o Versalitas. No deberán incluirse referencias a autores
cuando éstos aparezcan en el texto exclusivamente como autoridades de un taxón. Los nombres de las publica-
ciones periódicas deberán aparecer COMPLETOS, no abreviados. Cuando se citen libros, dése el título, editor,
lugar de publicación, n” de edición si no es la primera y número total de páginas. Deberán evitarse referencias
a Tesis Doctorales u otros documentos inéditos de difícil consulta. Síganse los siguientes ejemplos (préstese
atención a la puntuación):
Fretter V. y Graham A. 1962. British Prosobranch Molluscs. Ray Society, London, 765 pp.
Ponder W.F. 1988. The Truncatelloidean (= Rissoacean) radiation - a preliminary phylogeny. En Ponder, W.F.
(Ed.): Prosobranch Phylogeny. Malacological Review, suppl. 4: 129-166.
Ros J. 1976. Catálogo provisional de los Opistobranquios (Gastropoda: Euthyneura) de las costas ibéricas. Mis-
celánea Zoológica, 3 (5): 21-51.
e Las gráficas e ilustraciones deberán ser originales y presentarse preferentemente en formato electrónico al
formato de caja de la revista o proporcional a éste. Este formato es de 57 mm (una columna) o 121 mm (dos) de
anchura y hasta 196 mm de altura, si bien se recomienda utilizar el formato a dos columnas. Es importante que
todas las figuras sean remitidas en su formato original (por ejemplo, las fotografías en .j¡pg de alta calidad o .tif,
las gráficas en hojas de cálculo Excel o documentos de CorelDraw), puesto que las ilustraciones insertadas en
el manuscrito WORD son inservibles en la fase de imprenta. Las imágenes digitales deben ser formateadas en
su tamaño de impresión con una resolución mínima de 300 ppp para imágenes en color o escala de grises y de
600 ppp para las de blanco y negro. Considérese la reducción que será necesaria a la hora de decidir el tamaño
de las escalas o letras en las figuras, que no deberán bajar de los 2 mm. En figuras compuestas, cada parte
deberá etiquetarse con letras mayúsculas, el resto de las letras deberán ser minúsculas. Las escalas de dibujos y
fotografías deberán ser gráficas, utilizando unidades del sistema métrico decimal; no deberán hacerse referen-
cias a los aumentos de una determinada ilustración, ya que éstos cambian con la reducción. En su caso, se
recomienda la utilización de mapas con proyección UTM. Cada figura, gráfica o ilustración deberá presentarse
en hojas separadas y con numeración arábiga (1, 2, 3,...), sin separar “Figuras” y “Láminas”. Los pies de
figura, en una hoja aparte, deberán acompañarse de su traducción al inglés (o español si el inglés es la lengua
del trabajo). Utilícese el esquema siguiente:
Figura 1. Neodoris carvi. A: animal desplazándose; B: detalle de un rinóforo; C: branquia.
Las abreviaturas empleadas en las ilustraciones deberán incluirse en los pies de figura.
Los autores interesados en incluir láminas en color deberán consultar con el editor y sufragar el sobrecoste con
una contribución de 30 € por página. Por lo demás, deberán ajustarse a los mismos requisitos indicados para
las figuras.
Si se pretende enviar gráficas o ilustraciones en impresión de papel es imprescindible presentar originales de
buena calidad. Las imágenes en semitonos deben estar bien contrastadas y ajustarse al tamaño definitivo de
impresión; al componer fotografías sobre una hoja, procúrese que los espacios entre ellas sean regulares y que
estén debidamente alineadas. Téngase en cuenta que incluir fotografías de distinto contraste en una misma
página conlleva una pobre reproducción final. Las gráficas de ordenador deberán imprimirse con impresora
láser sobre papel de buena calidad.
e Las Tablas se presentarán en hojas separadas, siempre con numeración romana (l, II, IIL...). Las leyendas se
incluirán en una hoja aparte acompañándose de una traducción al inglés. Deberán evitarse las tablas particu-
larmente complejas. Se recomienda reducir el número y extensión de ilustraciones, láminas o tablas al mínimo
necesario.
e Los artículos que no se ajusten a las normas de publicación serán devueltos al autor con las indicaciones de
los cambios necesarios.
e El Comité Editorial comunicará al autor responsable del trabajo la fecha de recepción del trabajo y la fecha
de envío a revisión. Cada original recibido será sometido a revisión por al menos dos investigadores. El
Comité Editorial, a la vista de los informes de los revisores decidirá sobre la aceptación o no de cada manus-
crito. El autor recibirá en cada caso copia de los comentarios de los revisores sobre su artículo. En caso de
aceptación, el mismo Comité Editorial, si lo considera conveniente, podrá solicitar a los autores otras modifica-
ciones que considere oportunas. Si el trabajo es aceptado, el autor deberá enviar una copia impresa del mismo
corregida, acompañada por una versión en un CD, utilizando procesadores de texto en sus versiones corrien-
tes de Windows (pero no el formato .docx generado por Word 2007, el habitual de Windows Vista) o Macin-
tosh. La fecha de aceptación figurará en el artículo publicado.
e Las pruebas de imprenta serán enviadas por correo electrónico al autor responsable, exclusivamente para la
corrección de erratas, y deberán ser devueltas en un plazo máximo de una semana. Se recomienda prestar
especial atención en la corrección de las pruebas.
e De cada trabajo se entregarán gratuitamente 50 separatas, además de una versión electrónica en formato
«pdf. Aquellos autores que deseen un número mayor, deberán hacerlo constar al devolver las pruebas de
imprenta, y nunca posteriormente. El coste de las separatas adicionales será cargado al autor.
INSTRUCTIONS TO AUTHORS
e Iberus publishes research papers, notes and monographs devoted to the various aspects of Malacology.
Papers are manuscripts of more than 5 typed pages, including figures and tables. Notes are shorter papers.
Monographs should exceed 50 pages of the final periodical, and may be published as Supplements. Authors
wishing to publish monographs should contact the Editor. Manuscripts are considered on the understanding
that their contents have not been published or simultaneously submitted for publication elsewhere.
e Manuscripts and correspondence regarding editorial matters must be sent to: Serge Gofas, Editor de Publica-
ciones, Departamento de Biología Animal, Universidad de Málaga, Campus de Teatinos, s/n, 29071, Málaga,
Spain and / or to the e-mail .
+ Manuscripts may be written in Spanish, English, Italian, French or Portuguese.
+ Manuscripts must be typed double spaced (including the references, figure captions and tables) on one side
on A-4 (297x210 mm) with margins of at least 3 cm. An original and two copies must be submitted, together
with a CD or e-mail remittance containing the article written with a current Windows (but not .docx format
generated by Word 2007, mainly used with Windows Vista) or Macintosh word processor. When a paper has
joint authorship, one author must accept responsibility for all correspondence.
e The authors must include a list of at least 4 possible referees; the Editor can choose any others if appropriate.
e Papers should conform the following layout:
First page. This must include a concise but informative title, with mention of family of higher taxon when
appropriate, and its Spanish translation. It will be followed by all authors” names and surnames, their full
address(es), an abstract (and its Spanish translation) not exceeding 200 words which summarizes not only con-
tents but results and conclusions.
Following pages. These should content the rest of the paper, divided into sections under short headings.
Whenever possible the text should be arranged as follows: Introduction, Material and methods, Results, Dis-
cussion, Conclusions, Acknowledgements and References. Unusual abbreviations used in the text must be
grouped in one alphabetic sequence after the Material and methods section.
e Notes should follow the same layout, without the abstract.
e Footnotes and cross-references must be avoided. The International Codes of Zoological and Botanical
Nomenclature must be strictly followed. The first mention in the text of any taxon must be followed by its
authority including the year. In systematic papers, when synonyms of a taxon are given, they must be cited IN
FULL, including the periodical, in an abbreviate form, where they were described, and the type localities in
square brackets when known. Follow this example (please note the punctuation):
Dendrodoris limbata (Cuvier, 1804)
Synonyms
Doris limbata Cuvier, 1804, Ann. Mus. Hist. Nat. Paris, 4 (24): 468-469 [Type locality: Marseille].
Doris nigricans Otto, 1823, Nov. Act. Ac. Caes. Leop.-Car., 10: 275.
These references must not be included in the Bibliography list, except if referred to elsewhere in the text. If a
full list of references of the taxon is to be given immediately below it, the same layout should be followed (also
excluding from the Bibliography list those which are not cited elsewhere).
Only Latin words and names of genera and species should be underlined once or be given in italics. No word
must be written in UPPER CASE LETTERS. SI units are to be used, together with their appropriate symbols. In
Spanish manuscripts, decimal numbers must be separated with a comma (,), NEVER with a point (.) or upper
comma (').
e References in the text should be written in small letters or Small capitals: Fretter and Graham (1962) or
FRETTER AND GRAHAM (1962). The first mention in the text of a paper with more than two authors must
include all of them [Smith, Jones and Brown (1970)], thereafter use et al. [Smith et al. (1970)]. If an author has
published more than one paper per year, refer to them with letters: (Davis, 1989a; Davis, 1989b). Avoid op. cit.
The references in the reference list should be in alphabetical order and include all the publications cited in the
text but only these. ALL the authors of a paper must be included. These should be written in small letters or
Small capitals. The references need not be cited when the author and date are given only as authority for a tax-
onomic name. Titles of periodicals must be given IN FULL, not abbreviated. For books, give the title, name of
publisher, place of publication, indication of edition if not the first and total number of pages. Keep references
to doctoral theses or any other unpublished documents to an absolute minimum. See the following examples
(please note the punctuation):
Fretter V. and Graham A. 1962. British Prosobranch Molluscs. Ray Society, London, 765 pp.
Ponder W.F. 1988. The Truncatelloidean (= Rissoacean) radiation - a preliminary phylogeny. In Ponder W.F.
(Ed.): Prosobranch Phylogeny. Malacological Review, suppl. 4: 129-166.
Ros J. 1976. Catálogo provisional de los Opistobranquios (Gastropoda: Euthyneura) de las costas ibéricas. Mis-
celánea Zoológica, 3 (5): 21-51.
e Figures must be original and provided preferably in electronic format and adjusted to page format and
column size. These should be one column (57 mm) or two columns (121 mm) wide and up 196 mm high, or be
proportional to these sizes. Two columns format is recommended. It is essential that all figures be supplied in
their original format (e.g. photographs as high-grade .jpg or as .tif files, graphs as Excel spreadsheets or Corel-
Draw files), as the files inserted into WORD documents cannot be used for printing. Digital images must be
given their final printing size with a resolution at least 300 dpi for colour and halftones, and at least 600 dpi for
black / white.
Take into account possible reduction in lettering drawings; final lettering must be at least 2 mm high. In com-
posite drawings, each figure should be given a capital letter; additional lettering should be in lower-case
letters. A scale line, labelled with SI units, must be used to indicate size; magnification ratio must be avoided
as it may be changed during printing. UTM maps are to be used if necessary. Figures must be submitted on
separate sheets, and numbered with consecutive Arabic numbers (1, 2, 3,...), without separating “Plates” and
“Figures”. Legends for Figures must be typed in numerical order on a separate sheet, and a Spanish translation
must be included. Follow this example (please note the punctuation):
Figure 1. Neodoris carvi. A: animal crawling; B: rhinophore; C: gills.
If abbreviations are to be used in illustrations, they should be included in the figure captions.
Authors wishing to publish illustrations in colour should consult with the editor and will be charged a contri-
bution of 30 € per page. They should otherwise follow the same standards as black and white prints.
If the authors want to send Figures in printed format, it is essential to supply good quality originals. Half-tone
images must be of good contrast, and should be submitted in the final printing size. When mounting pho-
tographs in a block, ensure spacers are of uniform width. Remember that grouping photographs of varied con-
trast results in poor reproduction. Computer graphics must be printed on high quality white paper with a
laser printer.
e Tables must be numbered with Roman numbexss (1, II, TIL...) and each typed on a separate sheet. Headings
should be typed on a separate sheet, together with their English translation. Complex tables should be
avoided. As a general rule, keep the number and extension of illustrations and tables as reduced as possible.
e Manuscripts that do not conform to these instructions will be returned for correction before reviewing.
e Authors submitting manuscripts will receive an acknowledgement of receipt, including receipt date, and the
date the manuscript was sent for reviewing. Each manuscript will be critically evaluated by at least two refer-
ees. Based of these evaluations, the Editorial Board will decide on acceptance or rejection. Anyway, authors
will receive a copy of the referees” comments. If a manuscript is accepted, the Editorial Board may indicate
additional changes if desirable. Acceptable manuscripts will be returned to the author for consideration of
comments and criticism; a finalized manuscript must then be returned to the Editor, together with a CD con-
taining the article written with current Windows (but not a .docx format generated by Word 2007, mainly used
under Windows Vista) or Macintosh word processor. Dates of reception and acceptance of the manuscript will
appear in all published articles.
e Proofs will be e-mailed to the author for correcting errors and must be returned corrected within one week.
At this stage no stylistic changes will be accepted. Pay special attention to references and their dates in the text
and the Bibliography section, and also to numbers of Figures and Tables appearing in the text.
e Fifty reprints per article and a .pdf file will be supplied free of charge. Additional reprints must be ordered
when the page proofs are returned, and will be charged at cost. NO LATER orders will be accepted.
La SocieDAD ESPAÑOLA DE IMALACOLOGÍA
Junta Directiva desde el 11 de julio de 2011
Presidente Jesús S. Troncoso
Vicepresidente Gonzalo Giribet
Secretario Ramón Álvarez Halcón
Tesorero Luis Murillo Guillén
Editor de Publicaciones Serge Gofas
Bibliotecario Rafael Araujo Armero
Vocales José Templado González
Carmen Salas Casanovas
Alberto Martínez Ortí
José Ramón Arrébola Burgos
Benjamín Gómez Moliner
Editor invitado para vol. 29(2) Harry G. Lee
La Sociedad Española de Malacología se fundó el 21 de agosto de 1980. La sociedad se registró como una aso-
ciación sin ánimo de lucro en Madrid (Registro N* 4053) con unos estatutos que fueron aprobados el 12 de
diciembre de 1980. Esta sociedad se constituye con el fin de fomentar y difundir los estudios malacológicos
mediante reuniones y publicaciones. A esta sociedad puede pertenecer cualquier persona o institución interesada
en el estudio de los moluscos.
SEDE SOCIAL: Museo Nacional de Ciencias Naturales, c/ José Gutierrez Abascal 2, 28006 Madrid, España.
CUOTAS PARA 2012:
DESDE ABRIL
Socio numerario (en Europa): 40 euros 45 euros
(fuera de Europa): 50 euros 55 euros
Cuota reducida estudiante 30 euros 34 euros
Socio Familiar: (sin recepcion de revista) 5 euros 10 euros
Socio Protector: (mínimo) 50 euros 60 euros
Socio Corporativo (en Europa): 50 euros 60 euros
(fuera de Europa): 60 euros 70 euros
Cuota Conjunta SEM+SIM: 73 euros 78 euros
INSCRIPCIÓN: 6 euros, además de la cuota correspondiente.
A los socios residentes en España se les aconseja domiciliar su cuota. Todos los abonos deberán enviarse al
Tesorero (dirección reseñada anteriormente) el 1 de enero de cada año. Los abonos se harán sin recargos para la
sociedad y en favor de la Sociedad Española de Malacología y no de ninguna persona de la junta directiva. Aque-
llos socios que no abonen su cuota anual dejarán de recibir las publicaciones de la Sociedad. Los bonos de ins-
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A los residentes en el extranjero se les ruega que abonen su cuota mediante giro postal en euros (internatio-
nal postal money orders in euros sent to the Treasurer). Members living in foreing countries can deduce 6 euros
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Cada socio tiene derecho a recibir anualmente los números de /berus, Reseñas Malacológicas y Noticiarios que
se publiquen.
ITHSONIAN INSTITUTION LIBRARI
CC,
3 9088 01663 890
Iberus 29 (2) 2011
RUBIO F., FÉERNÁNDEZ- GARCÉS, R. and ROLÁN E. The family Tornidae (Gastropoda, Rissooidea)
in the Caribbean and neighboring areas.
La familia Tornidae (Gastropoda, Rissovidea) en el Caribe y áreas VeciMAs. ocn. 1-240
ISSN 0212-3010
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