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THE 


NAUTILUS 


A MONTHLY JOURNAL 
DEVOTED TO THE INTERESTS OF 
CONCHOLOGISTS 


VOL, XIX. 
MAY, 1905, to APRIL, 1906. 


EDITORS AND PUBLISHERS: 
H. A. Prrspry, Curator of the Department of Mollusca, Academy of Natural Sciences, 
PHILADELPHIA. 
C. W. Jounson, Curator of the Boston Society of Natural History, 
BOSTON, 


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INDEX 


TO 


ree NAUTILUS, VOL. XIX. 


INDEX TO SUBJECTS, GENERA AND SPECIES. 


Achatina gracilior Boettger ; : : SG 
Achatinellidz, descriptions of new species of : ‘ aye Pa 
Alaba oldroydi Dall, n. sp. . : i : ; ; . Ib 
Adelomelon Dall . : ; ‘ Y é i : . 143 
Amastra conica Baldwin. : , ‘ : : hoe 
Amastra leva Baldwin. , P : ; : : Srkos 
Amastra montana Baldwin , f : 3 . P 37256 
Amastra rubristoma Baldwin . ; ‘ .! ; Fe iy | 
Amastra seminuda Baldwin ‘ i ; : : oan is 

Amastra sinistrorsa Baldwin 4 : f ’ ‘ . 138 
Amoria Gray : : . 143 
Amnicola augustina Pictey. CPt. y, fae! 13, 14). : Le 
Amnicola pilsbryi Walker, n. sp. (PI. V, figs. 11, 16) b EG 
Amnicola walkeri Pils. (Pl. V, fig. 12) : : ; si UT 
Amnicolida, new and little known species of : Sy OTe Eee 
Antarctic nudibrancbs . 3 p d t : , Atay) 
Arion subfusea var. cinereofusca, : j : : . 84 
Arizona and New Mexico, the snails of ; : : . 68 


Bifidaria pentodon and its allies. ; LQ 
Bifidaria pentodon Say (Plates VI and VU, age) l= 41) l 
Bifidaria pentodon var. gracilis Sterki (Pl. V1, figs. 16-27) 1 
Bifidaria tappaniana C. B, Adams (Pl. VII, figs. 42-53) 1 

] 


Bifidaria tappaniana curta Sterki 

Californian helix, a new : , 1 
Californian shells, two eS : : ; ‘ PDP 
Calliostoma Ge uipectus) marion Dall, n. sp. . : . 131 
Carychium exiguum Say (figs.) . : : , . 140 
Carychium exile Lea (figs.) d : E ' . 138 


(iii) 


lv THE NAUTILUS. 


Carychium exile canadense Clapp, (figs.) . 139 
Carychium stygium Call (figs. ) . 140 
Carychium nannodes Clapp, un. sp. (PI. III, figs. Re 9.). 81 
Cerithidea sacrata hyporhyssa Berry, n. var. . 133 
Chiton from the New England Coast, A New 88 
Cochliopa rowelli, a California Shell ? 91 
Crepidula nivea yar, glottidiarum Dall, n, var. 27 
Crepidula rugosa var. naticarum Williamson, n, var, . 50 
Crepidula rugosa var, norrisiarum Williamson, n, var. dl 
Cycladide of the Southern States. 30 
Cyprea, on some new varieties of 29 
Cyprza xanthodon Gray ; : 12 
Cypreea capensis var. elizahethensis Boas n. var. 29 
Cyprea carneola var, adonis Rous, n. var. . 17 
Cyprea cruenta var. violacea Rous, n, var, his 
Cyprea exanthema var, pudica Rous, n, var. 15 
Cyprea helvola var. aphrodite Rous, n, var, 75 
Cyprea isabella var, fulva Rous, n. var, 17 
Cyprea miliaris var. brookei Rous, n, var. 29 
Cyprea vitellus var, fergusoni Road n. var, ; 76 
Cypreidae in the collection of Mr. D. We Fergueon : 15 
Dendrotrochus eva Ptr, 43 
Dendrotrochus layardi Hartm. 43 
Diplomorpha bernieri Hartm, 44 


Diplomorpha delantouri var, major : . 44 
Draparnaudia singularis Pfr, var, fete nae n. var, 42 
Endodonta tenuiscripta Ancey : 42 
Epiphragmophora sequoicola soquela Rowell iat ‘gaan: 41 
Florida Keys, Land shells of 37 
Floridian Calliostoma, on a new. 131 
Frenchman’s Bay, Maine, dredging in . 4 . 128 
Frenchman’s Bay, Maine, shell-bearing mollusca . 110 
Goniobasis columbiensis Whiteaves, n. sp. (Pl. II, figs. 11, 
1) ee ; : 3 so 
Harpulina Dall, n, pen . 143 
Helicina layardi Hartm. ie 5 
Helicorbis Benson . 104 
Helix (Epiphragmophora) apiece aoinels Rowell, n. 
subsp. 41 


THE NAUTILUS. v 


Indiana, notes on a collection of shells from Bass Lake ee 
Indiana, Notes on the semi-fossil shells of Posey County . 62 
James Bay, Hudson Bay, Jist of a few species of land and 
fresh-water shells, from . : : ; s , + 4 
Lamprocystis layardi (Thomson) ; S é ‘ . 42 
Loess of Naches, etc, . : ; E . 144 
Lymnea bulimoides var. doukeroll Pacts } ; . 130 
Lymnea hinkleyi Baker, n, sp. . / - : : . 142 
Lymnea parva Lea. ; ‘ : : . : . 52 
Lymnea sterkii Baker, n. sp... ‘ peg | 
Lyogyrus brownii Carpenter, a new fecal foul ; . 47 
Macrochlamys (?) annatonensis Pfr. . ; : : yey 
Maculopeplum Dall, n. gen. " : : : : . 148 
Massachusetts flees : E : : Z : . 84 
Meellendorffia and Stegodera, mate on F 63 
Meellendorffia (Mcellendorfliella) erdmanniS, & B. ie (PI, II, 
fos, 9,10.) : ‘ - P 4.66 
Meellendorffia psielix) Hieaeeana Pile. rape Ce), LE ftes: 
A, 0)! 6 : 66 
Meellendorffia fener pautpeilia Milaer. (PL. II, figs. 1, 8). 65 
Murex (Phyllonotus) santarosana Dall, n. sp... : aie ee 
Museum Boltenianum, republication of . i ; ee 
Natica intricatoides, on the Algerian coast : : . 34 
Neritina lineata var. reticulata C, & J. ; : : . 56 
Newcombia carinella Baldw. ‘ : : . 136 
New England, a new brackish-water shell eo “ ; . 90 
New Hebrides, remarks on some land and fresh-water shells 
trom the . : : : : . 42 
New Mexico and Deriieia| fhe snailé of : ; é . 68 
New Mexico, shells of Grant, Valencia Co. . : : . 130 
Nicaragua, shell-collecting on the Mosquito coast of, 8, 16, 32, 
55, 78 
Notes and News . ‘ : 12, 34, 47, 84, 96, 107, 120, 132 
Notes on some forgotten mollusk names. : - 50 
November snails . : : : : : : : ty iae 
Nudibranchs, Antartic. : ‘ ; : : : aa 
Oliva (Agaronia) testacea . : : : : ; . ane 
Omphalotropis conella Sykes, var, ; ; : : . 45 


Omalodiscus Benson , YF oe ag ° ‘ ‘ . 105 


vi THE NAUTILUS. 


Ordovician gastropod retaining color markings. , Aa CO 
Oreohelix yavapaicompactula Ckll. . : : : AG 
Oysters, Canadian : : : : 4 é he CO 
Pachycheilus corvinus Morel , : ; : : eG 
Palaina francoisi Ancey,n. sp. . : : = ee 
Paludestrina salsa Pilsbry, n. sp. (PIL. III, Ae 10)... $80 ate 
Partulina carnicola Baldwin, n. sp... : : ; . 112 
Partulina cooperi Baldwin, n. sp. ‘4 F 2 q 5 Me 
Partulina flemingi Baldwin, n. sp. : : ‘ : . lit 
Partulina fulvicans Baldwin, n. sp. . A ; j . 135 
Partulina kaasana Baldwin, n, sp. : : : : Be 
Partulina lemmoni pagan NE SPa Ws : S : Beis Ue 
Pear! fishing : : b ; ; ; of eZ 
Physa layardi eee: n, op : : 5 : : yee 
Physa rhomboidea : : } ; 2 Ot 
Pisidia, new varieties of North eaedien : , . 80; 418 
Pisidium compressum var, arrosum Sterki, n. var... aoe 
Pisidium compressum var, confertum Sterki, n. var. . ee! 
Pisidium compressum var, contrarium Sterki, n. var. . (83 
Pisidium compressum var, coosaense Sterki, n. var, . Aye 's: 
Pisidium compressum var, levigatum Sterki, n. var. . Bons) 
Pisidium compressum var. limnicolum Sterki, n, var. Sil 
Pisidium compressum var, opacum Sterki, n. var. ? Bert | 
Pisidium compressum var, rostratum Sterki,n. var, . . 02 
Pisidium compressum var. smithii Sterki, n. var, Z ‘woe 
Pisidium fallax var. mite Sterki, n. var. . 84 
Pisidium fallax var, errans Sterki, Nn: i. for septentrionale 
preoc, é . 84 
Pisidium idahoense var. indianense Sterki, n. var. : PSU) 
Pisidium noveboracense var, alabamense Sterki, n. var. . 120 
Pisidium noveboracense var, elevatum Sterki, n. var. eae bs) 
Pisidium noveboracense var. expansum Sterki, n. var. SLES 
Pisidium noveboracense var. fraternum Sterki, n. var. . 120 
Pisidium noveboracense var. lineatum Sterki, n. var. . © Eg 
Pisidium noveboracense var, quadrulum Sterki,n, var. . 119 
Pisidium punctatum var. armatum Sterki, n. var. ; . 84 
Pisidium punctatum var. simplex Sterki, n. var. F . 84 
Pisidium variabile var. brevius Sterki,n. var. . : aS 
Pisidium variabile var. hybridum Sterki, n. var. . als 
Placostylus (Peecilocharis) francoisi . 44 
Planorbis alabamensis and dilatatus in the Floridian Plio- 
cene : : : So 
Planorbis alabamensis var. avus Pilsbry, n. var. . ; . 34 


Planorbis, a new Tertiary . ‘ 5 4 : : . 100 


THE NAUTILUS. vii 


Planorbis florissantensis Cockerell,n. sp. . E : . 100 
Planorbis nautileus Linn.,in Lllinois . j : : - 120 
Planorbis nitidus Gray ; : ; ; , ‘ . 105 
Plejona Bolten . ; : : . 143 
Polygyra decepta Clapp, n. 8p. (fig. ya : j : hy 5 
Polygyra ferrissi sericea Ferriss, n. sp. 67 
Polygyra inflecta approximans Clapp, n. subsp. Pl. II, 

fig. 6 T4 
Hoenn multilineata ‘algonquinensis Nason, n. var. . . 141 
Polygyra smithii Clapp, n. sp. (Pl. III, figs. 1- 9 : oa be 
Potamopyrgus brevior Ancey, n. sp. . : . 46 
Prince Edward Island, shells of . ; 103 
Publications received ; . 24, 35, 48, 60, "1, 92, 108 
Pupa cincinnatiensis Judge ‘ : . 121,124 
Pupa curvidens Gould : : : : ‘ . 12, 124 
Pupilla floridana Dall . \ 121, 125 
Pyrgulopsis mississippiensis Pilsbry (Pl. Vv, fg. 15) ' . 116 
Quadrula archeri Frierson, n. sp. (Pl. I, figs, ne -§ Glee ee 
Quadrula rubidula Frierson, n. sp. (PI. |, fe 3, ay Whe ces 
Somatogyrus aldrichi Walker, n. sp. (Pl. V, fig. 9). . 114 
Somatogyrus biangulatus Walker, n. sp. (Pl. V, fig. 6) . 99 
Somatogy rus excavatus Walker, n. ap (EE, Viet). . 100 
Somatogyrus humerosis Walker, n. sp. (PI. v, fig. 2) oe 
Somatogy rus pennsylvanicus | ilsbry, CBr NY, figs. EG 18)). FIG 
Somatogyrus pumilus Conrad, (PI. Vv, fig. 10.) : AES 


Somatogyrus quadratus Walker, n, sp. (PI, V, figs. 3, 2) 98 
Somatogyrus strengi Pilsbry & Walker, n. sp. (Pl. v, fig 


5) . 99 
Somatogyrus substriatus Walker, n, sp. (Pl. ¥; fig. 1.) yt a 
Somatogyrus tennesseensis Walker, ne Bpe (EL Vi fig. 85)! 114 
Stegodera angusticollis Mart. (PI. IT, figs. 1, 2, = . 64, 65 
Stegodera, notes on Meellendorttia and . . 63 
Straparollina harpa Hudson, (fig.) d p . 102 
Strombus pugilis nicaraguaensis Fluck, H: Var: 32 


Strombus pugilis, some notes on living g, (Pl. III, figs. 11, 13) je 
Succinea floridana Pilsbry, n. sp. : 


Succinea indiana Pilsbry, n. sp, P : : 38 
Succinea retusa magister Pilsbry, (Fig, 2. ). : : . 109 
Tonicella blaneyi Dall, TSP Geb LY.) ‘ ‘ . . 88 
Trivia acutidentata Gask. » hote on : ; é : Ba by. 
Trochorbis Benson, . - : : : . 105 
Unio luteolus, note on Canadian : ; s ‘ - 
Unionidse from Alabama,new . : : ; : * =) ae 
Unionide, notes on young , ; : ; : . 49 
Unionide of Wisconsin 3 ; ; ; : : . 69 
Valvata humeralis : : ? : ‘ P : ee 
Valvata lewisii a : : : : ; ; : ah, 


Valvata, note on . ; . : ; } : é . 28 


viii THE NAUTILUS. 


Vertigo perryi Sterki, n. sp. : : - : : . 53 
Vitrina pfeifferi Desh., note on , ; s : : 07 
Vitrea rhoadsi Pilsbry (Bigs): : : 2 . . 109 
Volutidz, notes on genera of : 5 A 5 5 . 143 
Voluta junonia Rao: : : , : 5 : . 148 
Volutilithes Swains ; 5 143 
West Coast Conchology,a pecondi Conenbution he : 5, 19 
Wisconsin shells, list of : : . , ; , pe 1/ 
Wright, Samuel Hart . : . 105 
Yukon Territory, notes on some fresh- water shells from: 5) Ae 
INDEX TO AUTHORS. 

Ancey, C. F. ‘ ; : : : 5 . (84, 42 
Baker, Frank C. ; : : ; 3 "27, 51, 120, 142 
Baldwin, D. D. . 5 , ‘ , , 5 a 135 
Berry, (9. 0: E : : : ; ‘ , : idigg 
Blaney, Dwight . : , : : : : . 110,128 
Button, Fred. L. E : : 4 : ; ; . 132 
Carpenter, H. F, ; , : ‘ 5 : ; mere AU 
Chadwick, G. H. d ; : : ; Ones 
Clapp, Geo. H. . 3 Z ; . A | 25, 73, 91, 138 
Cockerell, T. D. A... : 4 ; 46, 68, 71, 84, 96, 100 
Colton, Harold Sellers ; : : 5 : : {1088 
Dall, Wm. H. , ; . 14, 26, 88, 104, Rev aaine 143 
Daniels, | Be] Da hte 4 : ; : : : 5 o82 
Ferriss, Jas: y: : Q : : é Son 
lack Wi Hs: A : y ‘ ; 8, 16, 32, 55, 78 
Frierson, L. S. . ; i : , : i 13, 49 
Hemphill, Henry : : 5 : : 5, 19 
Johnson, Charles W. . ‘ ; 3 . 485 "12, 92, 105, 108 
Latchford, F. R. : : . 3 } 34 
Nason, Wm. A. . } cata 
Pilsbry, Henry A. . 24, 28, 34, 37, 48, 60, 63, 80, 91, 93, 109, 

191, 130 
Raymond, Percy E. . : ; : é : é . 107 
Roberts, 8. Raymond . : : : ; : : sa 
Rous, Sloman, . : i : ; ; : 5 29, 75 
Rowell, Rev. J. . E ; A : 4] 
Stern Vien. : : . A : 30, 53, 80, 96, 118, 134 
Vanatta, E.G. . : ; ; : bot 
Walker, Bryant . : : : ‘ ; ; sy eye! 
Whiteaves, Siaky 5 i ; A a ah, Nae a 
Williamson, Mrs. M. Burton. ; : : ‘ ees)! 


Winkley, Henry Wit : : : A : 0 


mee NAUTILUS. 


Von. XIX. MAY, 1905. No. 1. 


NOTES ON SOME FRESH-WATER SHELLS FROM THE YUKON TERRITORY. 


BY J. F. WHITEAVES. 


Among the zodlogical collections in the Museum of the Geological 
Survey of Canada, there are a few fresh-water shells from the Yukon 
Territory, which have not yet been reported upon, though they are 
by no means devoid of interest to the student of the geographical 
distribution of the mollusca. 

Most of these shells were collected by the late Dr. G. M. Dawson, 
in 1887, at four localities, viz., from Frances Lake, at the head of 
the Liard River; from Finlayson Lake, between Frances Lake and 
the Pally River; at the Lewes River; and from Lake Marsh or 
‘¢ Mud Lake,” one of the tributaries of the Lewes River. The re- 
mainder were collected by Mr. Joseph Keele in 1904, from the 
Stewart River, near Mayo River. 

The Cycladide in these collections have been kindly determined 
by Dr. V. Sterki, and most of the Gasteropoda by Dr. W. H. Dall. 
The species represented in them are apparently as follows : 


PELECYPODA. 
Spherium Walkert Stevki. 

Frances Lake, one valve; and Finlayson Lake, two perfect speci- 
mens. In 1904 Mr. W. McInnes collected a few living shells, 
which were referred to this species by Dr. Sterki, from the Atta- 


2 THE NAUTILUS. 


wapiskat River, Keewatin. The type of S. Walkeri are from Lake 
Michigan. 


Pisidium Idahoense Roper. 

Stewart River, near Mayo River; one dead but perfect specimen 
and an odd valve. Dr. Sterki writes that the “anterior part of the 
hinge of the former is reversed.” 


Pisidium compressum Prime. 

Stewart River, near Mayo River; one specimen. Mr. McInnes 
has recently collected specimens of this species at Ozhiski Lake, 
Attawapiskat River, at Kawinogans River (a branch of the Attawa- 
piskat) and at the Winisk River, Keewatin. 


Pisidium variabile Prime, var. 

Stewart River, near Mayo River; two specimens. Mr. McInnes 
has recently collected three specimens on the Kawinogans River, 
which Dr. Sterki has identified with this species. 


Pisidium scutellatum Sterki. 


Frances Lake; fry only, one specimen. Dr. Sterki has recognized 
a few specimens of P. scutellatum in collections made by Mr. McInnes 
last year at Ozhiski Lake and the Kawinogans River, Keewatin. 


GASTEROPODA., 


Valvata mergella Westerlund. 


Stewart River, near Mayo River, two specimens. 


Valvata Lewisit Currier. 

Valvata sincera of Haldeman, C. B. Adams, Dekay; W. G. Bin- 
ney, and many subsequent American writers, but, according to Dall, 
not V. sincera of Say. 

Valvata striata of Lewis, but not of Philippi. 

Frances Lake, ten specimens, and Finlayson Lake, two specimens. 
Presumably similar specimens were previously recorded by W. G. 
Binney, in 1865, under the name V. sincera, as having been collected 
by Major Kennicott from the Peace River, Upper Mackenzie, and 
Great Slave Lake. Frances and Finlayson Lakes both belong to 
the Upper Mackenzie drainage system. 


——<—  — 


) 
| 


TOE NAUTILUS. 3 


Elsewhere in Canada, V. Lewisii, as recently identified by Dall, 
is now known to occur at many localities from Gaspé to Alberta, and 
as far to the northeastward as Fort Chimo, Ungava. 

A few specimens, in the museum of the Canadian Survey, which 
Dall thinks are “ probably the true V. sincera of Say, or a variety 
of it,”’ were collected on the island of Anticosti by Professor Macoun 
in 1884, and on the Attawapiskat and Kawinogans Rivers by Mr. 
McInnes in 1904. Those from the Kawinogans River have the 
outer half of the last volution free and partially uncoiled. 


Limnea stagnalis appressa Say. 
Stewart River, near Mayo River ; two specimens. 


Limnea Randolphii Baker. 


Frances Lake, eleven fine and large specimens; Finlayson Lake, 
eleven specimens, mostly immature ; Lewes River, one small speci- 
men; and Lake Marsh, Lewis River, seventeen fine and mostly 
adult shells. 


Limnea palustris Muller. 


Frances Lake, two specimens. 


Limnea Vahlii Beck. (Dall.) 
Frances Lake, nine specimens; Finlayson Lake, twelve specimens. 


Limnea arctica Lea. (Dall.) 
= Limnea Pingeli Beck, var.; (Dall.) 
Stewart River, near Mayo River, two specimens. 


Planorbis trivolvis Say. 


Stewart River, near Mayo River; seven specimens of a rather 
large, depressed and thin-shelled form of this species, with the spiral 
angulation obsolete. 


Segmentina armigera (Say). 
Stewart River, near Mayo River; one specimen. 


Physa sp. indet. 


Finlayson Lake ; one very immature specimen. 
Ottawa, April 5, 1905. 


4 THE NAUTILUS. 


LISTS OF A FEW SPECIES OF LAND AND FRESH-WATER SHELLS FROM 
THE IMMEDIATE VICINITY OF JAMES BAY, HUDSON BAY. 


BY J. F. WHITEAVES. 


The shells referred to in the following lists were collected by 
Messrs. O. O’Sullivan and W. Spreadborough, at three localities 
near James Bay, on behalf of the Geological Survey of Canada, and 
are now in its Museum: 

1. From two miles above the mouth of the Harricanaw River, 
Hannah Bay, collected July 1, 1904. 


(A. Land Shells.) 


Cochlicopa lubrica (Muller). Several specimens. 

Vitrina impida Gould. Eight specimens. 

Zonitotdes arboreus (Say). Two specimens. 

Pyramidula striatella (Anthony). Four specimens. 

Succinea retusa Lea (S. ovalis Gould non Say). Several speci- 
mens. 


(B. Fresh-water Shells.) 


Limnea stagnalis appressa. ‘Ten specimens. 

Limnea Vahlit Beck (teste Dall). Eleven specimens. 

Limnea truncatula Muller (teste Dall). Several specimens. 

Bulinus hypnorum (L.). Eight specimens. 

Planorbis trivolvis Say. Two specimens. 

2. From the mouth of the Moose River, about a mile below Moose 
Factory, collected July 15, 1904. 

Lampsilis luteolus (Lamarck). 'Two specimens. 

Anodonta marginata, Say (= A. fragilis, Lamarck). Three spe- 
oimens. 

3. From the mouth of the Albany River, about a mile below Fort 
Albany, collected July 25, 1904. 

Planorbis albus, Muller (= P. hirsutus, Gould). Several speci- 
mens. 

Ottawa, April &, 1905. 


THE NAUTILUS. 5 


A SECOND CONTRIBUTION TO WEST COAST CONCHOLOGY—I. 
BY HENRY HEMPHILL. 


This may be considered a continuation of the article published in 
the three closing numbers of Vol. XIV (1901) of the Nauritvs, 
entitled, “ A Contribution to West Coast Conchology.” 

Since the publication of that article I have devoted the greater 
part of three years or more to further exploration of the islands off 
the coast of southern California, and a large part of a narrow strip 
of the mainland directly along the coast opposite to the islands, ex- 
tending from San Pedro, at the south, to San Simeon Point, at the 
north, the latter point being about one hundred miles, more or less, 
north of San Miguel Island, the most northerly island of the group. 

The new material secured during this exploration is so variable in 
every respect and yet so closely connected by intermediate forms, 
and adds so much to our knowledge, not only of the land shells of 
this region, but to the subject of variation generally, that I offer the 
following notes and descriptions for the consideration of those inter- 
ested in the study of our land shells. 

These islands and the narrow strip of the mainland referred to 
above constitute a very small portion of a large zodlogical province 
that has its southern line at San Diego, and its northern limits at 
Juan de Fuca Strait, and which may be or is known as the Cali- 
fornian Province, as most of the forms of molluscan life found within 
these limits have their metropolis, I believe, within the borders of 
the State of California. These limits, however, like all other at- 
tempts to define boundaries in nature, are more or less arbitrarily 
drawn, and serve only in a general way for the purposes of study, as 
- dividing lines. Quite a number of genera and species that live in 
this province pass beyond these limits, while a few from the more 
northern region and even some circumpolar forms, disguised as 
species, range across the California Province far down into the more 
southern regions, 

On account of their isolation or separation from the mainland and 
peculiar conditions in the environment, both the fauna and flora of 
the islands possess unusual attractions for those interested in the 
study of the problems of life. I shall go somewhat into the particu- 
lars and details of the conditions existing on these islands as I have 


6 THE NAUTILUS. 


seen and observed them, and picture them as best I can for the 
readers of the Nautitus. A bit of history in this connection may 
be of interest. 

Historians and others tell us that these islands after several un- 
successful expeditions were discovered in the year 1852, by Juan 
Rodrigues Cabrillo, a Portuguese navigator in the service of Spain. 


SANTA BARBARA 
SAN MIGUEL |, 


= 
SANTA SANTA ANACAPA 


ROSA}. CRUZI. Los anctses 


SANTA BARBARA 1. 


“SAN NICOLAS 4. SANTA 
CATALINA Ff. 


SAN 
eee I. 


COAST LINE AND ISLANDS OF SOUTHERN CALIFORNIA, 


‘‘Cabrillo,” Prof. Holder tells us in his very interesting little book- 
let on Santa Catalina Island, ‘named the islands we call to-day San 
Clemente and Santa Catalina after his ships, the former ‘ La Vittoria’ 
and the latter ‘San Salvador.’ ”’ 

In May, 1602, sixty years later, another expedition under Sebas- 
tain Vizcaino visited these islands in the following month of De- 
cember. Vizcaino ignored Cabrillo’s names and renamed them San 
Clemente and Santa Catalina, under which false names they have 
been called ever since. According to modern conchological rules, 
these later names fall into the synonomy of Cabrillo’s earlier ones, 
but it seems a shame to “‘ knock out”’ one saint’s name with another, 


THE NAUTILUS. r; 


if I am allowed to use a pugilistic phrase in connection with such a 
saintly subject. 

Prof. Holder continues to tell us that the historian of Vizcaino 
was Father Torquemada, a member of the party, who has left a de- 
scription of a temple on Santa Catalina. “It consisted of a large 
circular place decorated with feathers, in the centre of which was an 
idol bearing upon its sides representations of the sun and moon. To 
this object the natives sacrificed birds, yet when the Spaniards shot 
the ravens the natives raised many lamentations.” ‘TI believe,” 
says Father Torquemada, ‘‘that the devil was in those crows, and 
spoke through them, for they were regarded with great respect and 
veneration. ‘The birds were so tame that they would snatch fish 
from the hands of the native women who did not dare to retaliate.” 
Torquemada considered the natives of Santa Catalina a superior 
race and in advance of the natives of the mainland in every way. 
The women were attractive, had fine eyes, and were modest and de- 
corous, while the children were described as “ white and ruddy.” 

When Cabrillo discovered Southern California, Santa Catalina 
had a large and vigorous population. To-day (1901), three hun- 
dred and fifty-two years later, this is represented by a pitiful handful 
of natives who are scattered about the foothills of the missions, by 
graveyards despoiled, and by the quaint stone implements plowed 
up by the modern ranchers. 

I am indebted to the U. S. Coast Pilot for the following informa- 
tion in regard to the size, distances and elevations on these islands: 

‘« The general trend of these islands is southeast and northwest,” 
or about parallel with the general trend of the coast line of the main- 
land south of Point Conception, which point is a little north of San 
Miguel, the most northerly island of the group. 

‘¢ Santa Catalina lies about 18 miles southward from Point Fer- 
min. It is about 18 miles long in an east and west direction, with 
a greatest width of about 7 miles. About 6 miles from the western 
end is a deep cut in a north and south direction that almost severs 
it (this is known as the isthmus). The highest peak, 2100 feet high, 
lies about the middle of the island.” 

In February, 1897, the California Academy of Sciences issued a 
Bulletin on the Geology of Santa Catalina Island, written by William 
Sidney Tangier Smith, which goes largely into the details and analy- 
sis of the rocks of the island. As the rocks form the basis of all 


8 THE NAUTILUS. 


the clays and soils, and in connection with the internal heat and 
moisture and external atmospheric conditions, form the basis of all 
organic life, including man, Mr. Smith’s list and arrangement may 
be desirable to those who take a broad view and are seeking a solu- 
tion of the great problems of life. His list and arrangement follows : 


A—Eruptive Rocks. 


1. Diorite. 3. Rhyolite. 
2. Porphyrite. 4, Andesite. 
B—Tuff and Diatomaceous Earth. 
ies Wie a 2. Shale. 
C—Sedimentary Deposits. 
D—Breccia. 
E—Basement Series. 
1. Quartzite. 4, Tale Shists. 
2. Actinolite. 5. Garnet Amphibolite. 


3. Serpentine. 
(To be Continued.) 


SHELL-COLLECTING ON THE MOSQUITO COAST OF NICARAGUA. 


That part of the Central American coast stretching from the Car- 
ribean Sea inland for about 40 or 50 miles and from the Wawa 
River and Sisin Creek on the north to the Rama River on the south 
has, until very recently, been known as the Mosquito Coast. In 
former times it was one of the regular haunts of those historic gentle- 
men whose lives have given us some thrilling tales of the old Spanish 
Main, and who had so much regard for the things of others that they 
soon became their own. The well-primed flint-lock and the handy 
machette were sometimes brought into play and made said transfers 
of property more expeditious. 

Bluefields, the metropolis of the Mosquito Coast, with its cosmo- 
politan, variegated population and babel of tongues, owes itsname to 
Blauveldt, one of those old sea-dogs. From 1655 to 1850 this land 
enjoyed autonomy under Great Britain, being ruled by native kings. 
But in 1850 under the terms of the Clayton-Bulwer treaty and of 
the treaty of Managua of 1860 the suzerainty was transferred to 
Nicaragua. The Indians enjoyed practical independence under their 
native king until 1895, when Nicaragua troops took actual possession 


THE NAUTILUS. 


& 


La) 


10 THE NAUTILUS. 


and the last vestige of native rule disappeared. The United States 
no doubt welcomed the final act, but England has never yet given 

“full assent to it. The political change has not been beneficial to the 
native population. 

A little gold in the rivers, some exports of mahogany and rubber 
support a small foreign population, who import considerable foreign 
food and manufactured goods, All this making the imposition of 
duty possible, the Nicaraguan government was naturally attracted, 
for the main function of government in many of our naughty little 
sister republics is to grab the pennies. 

The white people comprise the foreign traders and the mission- 
aries. The Nicaraguans in Bluefields are mostly mixed; as to the 
rest of the population it is made up of native Indians, except for the 
West Indian negroes who have settled in Bluefields and at Pearl 
Lagoon. 

Of the Indian tribes the Moskos, whom the Spaniards called 
Mosquitos, are the most numerous and inhabit the seacoast. On 
Rama Key, in the Bluefields Lagoon, and on the mainland as far as 
Monkey Point, live a few hundred Rama Indians. Near Pearl 
Lagoon and near Wauks River or the Rio Coco dwell some remnants 
of black Caribs. Near the headwaters of streams west of Bluefields 
are to be found some Woolwas, while the Sumus inhabit the country 
along the headwaters of streams to the north of the Kuringwas 
River. All these interesting tribes and the Sumus especially, the 
most interesting of them all, are fast dying out or mixing. The 
ethnologist had better hurry or a field of research will be gone for- 
ever. 

In Vol. 5, p. 151, of ‘*The American Journal of Conchology,”’ 
Mr. Ralph Tate, who collected in the Chonatales province, says: 
“A low mountain chain trends in a northwest and southeast direc- 
tion through the central part of the country. . . . This region ez- 
tends to the Atlantic seaboard.’’ The italics are mine, and it is to 
this latter remark I want to call attention, for I have had inquiries 
from conchologists concerning shells they thought lived on the Mos- 
quito Coast which could not possibly have existed in its swamps. 

With the exception of the low, isolated Pratta Hills to the north- 
west of Karata, a single isolated cone, known as Lappan, just west 
of Wounta Haulover; a solitary ridge near Pearl Lagoon, and some 
spurs of Cord. de Yoloma south of Bluefields, the entire Mosquito 


THE NAUTILUS. 11 


Coast, together with much of the country beyond its limits, espec- 
ially up the Kuringwas and the Avultara (Rio Grande) is low, 
swampy, savanna land. For twenty miles back from the sea, ex- 
cept in the rainy season, the rivers, creeks and lakes are salty. A 
glance at the map will show that the sea has invaded the land along 
the whole coast. The Indians say the coast is settling. Trees 
planted 80 years ago, high and dry and back from the sea, were at 
the high-tide line, being washed away in 19038. Lagoons once sep- 
arated by a strip of forest or connected by a very narrow tingui 
(channel) are now united as one. Banks that once sloped to the 
water’s edge are now being submerged. 

Dense forest covers the country along all the streams and lagoons, 
Near the sea is the ubiquitous mangrove. Between the rivers are 
large savannas on which roam the cattle of the Indians, as well as 
deer. With few exceptions, the villages are along the rivers and 
lagoons, and consist of wattled and thatched huts. The entire pop- 
ulation cannot exceed 15,000. The country is a paradise for natur- 
alists, although I never met any there. It abounds in insects, birds, 
fish and interesting quadrupeds, such as tapirs, peccary, jaguars, 
pumas and ocelots, besides lizards, alligators, turtles and manatees. 
I also observed at least three kinds of monkeys. Last, and of course 
not least, there are molluscs. 

Along the seashore the country is sandy, and one is reminded of 
the Jersey beach. There are, however, three isolated spots on the 
coast which form exceptions. At the entrance to the harbor at Blue- 
fields there is a strong ‘“‘ Bluff” standing high above the surround- 
ing low stretches of country. At Walfa Siksa, the meaning of 
which is black stone, are to be found on the north side of the river 
mouth some black igneous rocks. They are also found under the 
river bed and crop out back of the village, which stands back from 
the sea, on the south bank of the river. This outcrop forms quite a 
conical knoll of rocks, having remarkable, square-like cavity struc- 
tures. It is hidden in the “ bush,” and few white men know that 
the hill exists. To the north of the Wawa river there are some 
high banks of clay and stones along the sea, and the place is known 
as Bragman’s Bluff. 

The sand of the sea-beach extends back only a short distance— 
from a few feet to a few hundred yards, where clay and igneous- 
looking earth takes its place. Back twenty or thirty miles the river 


2 THE NAUTILUS. 


banks get high enough to prevent overflow, and then the country be- 
gins to be stony. Rapids and falls are found on nearly all the 
rivers along the western border of the old reserve, and doubtless 
indicate an ancient seacoast. 

From the shore line seaward there extends a very gradually slop- 
ing continental shelf, making shallow water and calm seas. 

From three to forty miles out there are keys of various sizes, the 
largest being (Great) Corn Island. Some are treeless, while others 
are covered with mangroves and cocoanut palms. 

From 1899 to 1908 it was my privilege to live at Wounta Haulover, 
a little Indian village of wattled and thatched huts. Being the only 
white man within twenty miles in any direction, loneliness some- 
times drove me out into the forest, along the rivers or down by the 
sea—to collect shells. Although my time was fully occupied with 
professional duties, I succeeded in getting together a nice cabinet of 
specimens. In another paper I shall name them and append some 
notes. 


NOTES, 


CYyPR#A XANTHODON Gray.—Dr. T. H. May, Government 
Health and Medical Officer of the Port of Bundaberg, Queensland, 
Australia, has sent me three beautiful specimens of Oypraea xantho- 
don Gray, which he says his children picked up last Christmas when 
at his seaside cottage. The shells were alive when taken and were 
found under rocks at low water. This species has been supposed to 
have a deep-water habitat.—S. RayMonp RoBErtTs. 


WHo.esaLe Peart Fisuine.—A great pearl fishery will take 
place at Marichchikkaddi, in the Island of Ceylon, on or about 
February 20, 1905. The banks to be fished are the southwest 
Cheval Paar, which is estimated to contain 3,500,000 oysters, suffi- 
cient to employ 200 boats for two days; the mid-east Cheval Paar, 
estimated to contain 13,750,000 oysters, sufficient to employ 200 
boats for seven days; the north and south Moderagam, with 25,700,- 
000 oysters, sufficient to employ 200 boats for thirteen days; the 
south Cheval Paar, estimated to contain 40,220,000 oysters, sufli- 
cient to employ 200 boats for twenty days, each boat being fully 
manned with divers.—London Globe. 


THE NAUTILUS, XIX. PLATE I. 


FRIERSON: NEW UNIONIDA. 


WHE NAUTILUS. 


Vou. XTX. JUNE, 1905. No. 2. 


NEW UNIONIDZ FROM ALABAMA. 


BY L. 8S. FRIERSON. 


Quadrula archeri n. sp. Plate I, figs. 1, 2. 


Shell small, thin, lenticular, somewhat quadrate, smooth. An- 
terior margin rounded, basal margin slightly curved, dorsal margin 
somewhat bent midway, posterior margin rounded or bluntly pointed, 
umbones low and flattened. Sides compressed, raised slightly at the 
posterior angle, which is nearly obsolete ; posterior slope wide, and 
somewhat elevated ; epidermis smooth, light brown, sometimes in- 
clining to orange, two or three concentric bands of green or black 
mark the earlier lines of growth. 

Teeth of the left valve double, anterior cardinal high, thin and 
wedge-shaped, the posterior cardinal triangular, low and small, 
laterals thin, rather short and nearly straight. 

In the right valve the cardinals are divided by a deep cleft, ex- 
tending nearly to the bottom of the anterior adductor scar, the pos- 
terior tooth being much the smaller. The dorsal plate is quite wide 
for so small a shell. The shell cavity is quite capacious; the beak 
cavities deep and compressed. Nacre white, with brown splotches, 
and very iridescent. The nacre is probably also salmon-colored in 
some individuals. The pallial line in the specimens before me is 
nearly imperceptible in the posterior part of shell, where the nacre 
is very thin. One specimen shows in the upper part of the shell 
cavity, 20 or 30 almost microscopic muscle-scars extending from the 
beak cavities half way to the pallial line. Long. 34, alt. 28, diam. 
14mm. Habitat: Tallapoosa River, at Tallassee, Ala. 


14 THE NAUTILUS. 


This shell is not closely allied to any shell with which I am 
acquainted. On the one hand it resembles some of the Plewrobemas 
of the group typified by P. fassinans, Lea, and on the other hand it 
bears some resemblance to a young and thin Q. aurea, Lea. In the 
concentric coloring of the lines of growth, it reminds one of Q. 
asperata, Lea. Its deep and compressed beak cavities place it in 
the genus Quadrula, while its resemblances to the latter two species 
is too slight to cause any error in their direction. Four specimens 
were found in the Tallapoosa River, Ala., by Mr. A. A. Hinkley, 
who has kindly allowed me to retain the specimen figured. 


Quadrula rubidula n. sp. Plate I, figs. 3. 4. 


Shell small, heavy, somewhat triangular; base emarginate, dor- 
sum arched, posterior angle biangulate; ligament elevated, light red. 
Beaks not very high, umbones inflated, sides flattened, epidermis 
brown, rough, obsoletely rayed, and showing traces of a greenish 
tint. 

Cardinals stout, short, rough, inclined to be double in both valves; 
laterals rather short, heavy, rough, and slightly curved; cavity of 
shell very irregular, excavated from beak to posterior margin; beak 
cavity deep and compressed, nacre white, sometimes pinkish, not 
very iridescent. Long. 36, alt. 32, diam. 22 mm. 

The shell is close to Q. rubida, Lea, and some forms resemble 
some of the depauperated specimens of Q. trigona, Lea. From 
either of these species it may be differentiated by its small size, and 
by the biangulated posterior angle. Some 30 or 40 specimens from 
the Mulberry River; 20 or 30 from the Black Warrior, and a single 
specimen from the North River, Alabama, show a remarkable con- 
stancy in size and other characters. Examples may be seen in the 
cabinets of most of the collectors of Unionide in America, contributed 
by Mr. A. A. Hinkley, of Dubois, Illinois. 


TWO UNDESCRIBED CALIFORNIAN SHELLS. 


BY WILLIAM HEALEY DALL. 


Murex (Phyllonotus) santarosana n. sp. 


Shell small for the subgenus, with about six whorls, each bearing 
from five to seven strong, low, reflexed varices, with a prominent, 


THE NAUTILUS. 15 


short, reflexed and inflexed grooved spine at the shoulder of the 
whorl; nuclear whorls one-and-a-half, smooth, minute ; nepionic 
whorls two-and-a-half, with the whorls tabulate, two strong spiral 
cords at the shoulder, the varices thin, irregular Jaminz low and ob- 
scure ; subsequent whorls, with five (increasing in the adult to seven) 
strong, anteriorly crispate, amber-brown varices, under which the 
whorls are tabulate, the intervarical spaces whitish, nearly smooth 
or with very obscure revolving lines or threads ; base of the whorls 
somewhat constricted with a short grooved spine on each varix where 
it crosses the concavity ; aperture obovate, small, with the inner lip 
smooth, the outer one more or less denticulate on the edge, the 
enamel whitish ; canal long, anteriorly attenuated, the margins ad- 
jacent but not adherent. Height of adult 45.0 ; max. diameter 28.0; 
max. diameter of aperture 10.5 mm. 

Types, U. S. Nat. Museum, 130628 and 133945. 

Dredged by U.S. F. C. Str. Albatross off Santa Rosa Island, in 
82 fathoms sand, also found off San Pedro and Catalina Island by 
various collectors, 

Specimens were named and distributed in 1895, but by some in- 
advertence the descriptions, both of this and the following species, 
seem to have remained unpublished. 


Alaba oldroydi n. sp. 


Shell small, polished, pale rufescent brown, with seven whorls, 
the protoconch smooth, swollen, globose, the following whorl smooth 
and rather inflated, the subsequent whorls sharply spirally grooved 
with wider interspaces, crossed especially the earlier ones with a few 
irregular, low, half obsolete wrinkles, the whorls are flattish and 
sometimes slightly constricted in front of the suture; the aperture 
patulous, recalling that of Rissoina, the base rounded with no um- 
bilicus. Length 5.25; max. diam. 2.0; length of last whorl 2.5 mm. 

Type, U. S. Nat. Mus., No. 158,771. San Pedro, 10 fathoms. 
Collected by Mrs. Oldroyd, Mr. Roper, Mr. Lowe, and others near 
San Pedro. 

None of the specimens retain the operculum. The form of the 
shell, and especially of the aperture, recalls Rissoina, but the irregu- 
lar varices, sculpture and apex are more like Alaba. A certain 
amount of doubt as to its true zoological position must remain until 
the operculum is known. 


16 THE NAUTILUS. 


SHELL-COLLECTING ON THE MOSQUITO COAST OF NICARAGUA—II. 


BY W. H. FLUCK. 


I wish to acknowledge my indebtedness to several naturalists who 
have helped me in naming and verifying my shells, especially Messrs. 
Pilsbry, Johnson, Dall, Schick, Shackleford, Hodgson and Ancey. 
Without their generous help a solitary student like myself would 
be like the old woman who lived in the shoe, with one difference, 
trouble about shells, not children. 

The localities mentioned in this and in subsequent papers may be 
found by referring to my map, page 9 of this volume. The names 
are somewhat blurred owing to rough paper and the reduction of the 
drawing, but it answers the principal reason for its publication, the 
location of Wounta Haulover, Wounta, Walfa Siksa, the Keys and 
Wani. 

Spirula peronit Lam. 

Wounta Haulover, and everywhere along the coast. No living 
specimens were found, but perfect shells of this cephalopod, immacu- 
late and beautiful, were taken in quantity. I nearly always found it 
on the upper reaches of the beach among the dead algae and trash 
cast up by the sea. 


Murex brevifrons Lam. 
Wounta Haulover. A specimen is found now and again on the 
beach, but the shell is not plentiful. 


Murex bellus Rve. 
Same locality. One dead but perfect shell. 


Sistrum nodulosum C. B. Ads. 
King’s Keys. One shell. 

Purpura trinitatensis Guppy. 
Man of War Keys. 


Cymatium pileare Lam. 
Walfa Siksa. On the rocks and sand reaches at this place there 
is good collecting. especially for bivalves. 


Purpura floridana Con. 

This is the shell known as P. hemastoma L., var. floridana Con. 
Dr. Dall considers floridana of specific value. My shells are very 
variable in form and marking. Some are smooth-whorled and the 
color of beach sand; others are studded with one or two rows of 


THE NAUTILUS. 17 


more or less prominent processes, especially on the body whorls, and 
are more marked than the smooth variety. Found on the beach on 
logs that were a-wash at high tide. In the dry season, when little 
fresh water from the Walpa Siksa river enters the sea, these shells 
are sometimes found on the rocks near the Indian village of the same 
name nearby. 


Purpura patula L. 

King’s Keys. Man of War Keys. Up to 3 inches long and very 
beautiful. In the larger specimens the processes and other sculpture 
are often more or less obliterated. An old and reliable Indian told 
me that in former times the natives made dye for their loin-cloths— 
the name of which in their tongue is palpura, strange to say—out of 
molluscs from the keys. 

Fasciolaria tulipa L. 

Man of War Keys, and abundant on all the others as well, where 

they are sought after by the natives as an article of food. 


Drillia fuscescens Gray. 

A single dead shell at Wounta Haulover. 
Drillia sp. 

Dr. Dall says this is near D. harfordiana Rve., perhaps a variety 
of it. King’s Keys. 
Latirus cinguliferus Lam. 

Man of War Keys, 
Melongena melongena L. 

Man of War Keys. Also on rocks at Walpa Siksa alive, as well 
as hundreds of dead shells as hermit-crab houses in the shallow water 
inside the bar. 

Phos? d’orbignyt Payr. 
King’s Keys. ‘Two specimens. 
Pisania pusioL. 

Man of War Keys. Numerous. I got eight specimens. 
Nassa vibex Say. 

Wounta Haulover, and everywhere, in favorable places. In the 
quiet September sea, when the beach is low, it can be found alive or 
containing hermit crabs, 

Voluta virescens Sol. 
In four years I found only four dead shells at Wounta Haulover. 


18 THE NAUTILUS. 


Marginella apicina Mke. 

Wounta Haulover. In September and March, especially in the 
former month, the N. E. trade wind dies away entirely, and instead, 
the wind blows from the S. or S. E. across South America. By the 
time it reaches the Caribbean it is the gentlest of zephyrs. The sea 
becomes as blue as the sky and as calm as a mill-pond on a hot 
August day. Under such conditions the shallow sea along the shore 
swarms with small forms of mollusca, and the littoral and laminarian 
collector is enabled to get forms not obtainable at any other time 
except by dredging. WV. apicina is found at this time in quantity. 
Marginella guttata Dillw. 

Also found at the same place and under similar conditions, but is 
not as plentiful as the former. 

Oliva (Agaronia) testacea Lam. 

This little mollusk seems to be absolutely at home in the sand at 
the bottom of the shallow sea at Wounta Haulover. I think I am 
safe in saying that this is the commonest laminarian univalve on the 
Caribbean coast of Nicaragua. It is rarely cast up dead. I have 
taken them alive in quantity whenever the sea was calm enough to 
feel for them. With the Indian boys of my village I had a stand- 
ing bargain to purchase all the small forms they brought me. That 
was before I found my first Olive. I was in bathing one day, when 
my foot, which soon became a good sub-marine shell-collector, acci- 
dently touched something that got away. I went for it quicker than 
it takes to write about it, and soon landed my first Olive. It was a 
prize I was proud of. I schemed out a little plan to get more, and 
confidentially let my house-boy in on the ground floor. I agreed to 
pay him 5 cents (silver) for every similar shell. He smiled hope- 
fully, but still I was not suspicious. My hope was to get two or 
three sets for my friends. The boy soon disappeared, and quietly 
marshalled the boys of the village, who immediately invaded the sea. 
In less than an hour this little army confronted me with double 
handfuls of these Olives. They enjoyed their corner in the Olive 
market, and began unloading on me at 5 cents per. They allowed 
me, after an explanation, to make a selection of several dozen at less 
money. The rest went back into the sea. I kept a few alive ina 
jar of water and sand for a long time. My observations were of 
little interest, as the molluscs burrowed in the sand, and seemed to 
want to go deeper. The foot is large and violet-colored, and with it 
they dig rapidly. 


THE NAUTILUS. 19 


Columbella mercatoria L. 

A few shells from Man of War Keys. On the mainland nothing 
but fragments were ever found. 
Oolumbella (Anachis) varia Sowb. 
Columbella ( Anachis) lyrata Sowb. 

Both these forms can be found in large quantities at Wounta 
Haulover, but always, so far as I remember, as hermit-crab shell. 
I do not recall ever getting any alive, possibly because I never 
dredged for them. Every September, for 4 years, my boys and I 
collected hundreds of them. There is no doubt in my mind that 
both forms can be had alive not far from the Wounta Haulover 
beach. If I had known at the time that this was a new locality for 
©. varia, I would have made an effort to secure living specimens. 


Engina turbinella Kiener. 
Man of War Keys. Two specimens. 


Cancellaria reticulata L. Wounta Haulover. 
Have also seen it from the keys. 


Terebra cinerea Gmel. Wounta Haulover. 

Abundant, especially in September, when the sea is calm. At 
such times it seems to burrow nearer the surface of the sand. It is 
easily kept in a jar of sea-water and is quite active. Those I had in 
confinement spent much time creeping about on the sides of the jar 
like Zimneas, displaying their round, disk-like foot. 

Terebra hastata Gmel. Same locality. 
Rare. Only 3 specimens in 4 years. It probably inhabits deeper 


water than 7. cinerea. 
(To be Continued.) 


A SECOND CONTRIBUTION TO WEST COAST CONCHOLOGY—II. 


BY HENRY HEMPHILL.* 


I have seen it stated several times by writers on conchology, that 
in regions where limestone predominates in the geological formation, 
and consequently becomes the principal element of the soil, that 
snail shells were or are more abundant (and hence a greater amount 


* By typographical error the date of discovery of the islands was given as 
1852 on p. 6 of last number, 5th line from top. It should read 1542. 


20 THE NAUTILUS. 


of that form of organic life exists) than in regions where limestone 
was absent. 

I am not prepared to confirm or deny such statements, for I have 
found land shells, both large and small, white and almost black, 
banded and bandless, with all the intermediate states and conditions, 
abundant and rare in limestone regions, and equally as abundant, 
rare and variable where limestone was apparently absent. There is 
undoubtedly a very close relationship between organic life, its form, 
and the elements composing the soil, which all creatures eat as food 
in a more refined state, and the elements composing the atmosphere 
that we breathe into our lungs and blood and which becomes a part 
of our body and being, and both of which are absolutely necessary 
to the existence of all forms of life, including man. 

I think, therefore, we must seek for a solution of the problem of 
the origin of organic life, and the great diversity of form and action 
it presents for our study and consideration, in the chemical combina- 
tion of the elements, for it is certainly true as Tyndall tells us, that 
“all matter is alive.’”’ In fact matter is the home of life, it is found 
nowhere else. Both are necessary to a demonstration of any kind, 
inseparable and truly immortal twins. 

In his Essay on Man, the greatest of all philosophical poems, Pope 
expresses this thought in these inspired words : 


“See matter next with various life endued, 
Press to one centre still the general good. 
See dying vegetables life sustain ; 
See life dissolving vegetate again: 
All forms that perish other forms supply 
(By turns we catch the vital breath and die). 
Like bubbles on the sea of matter born, 
They rise, they break, and to that sea return. 
Nothing is foreign; parts relate to whole. 
One all-extending, all-preserving soul 
Connects each being the greatest with the least. 
Made beast in aid of man, and man of beast, 
All served, all serving, nothing stands alone. 
The chain holds good where it ends unknown.” 


For all of the above reasons Mr. Smith’s arrangement and analy- 
sis of the rocks of Santa Catalina Island, as given in our preceding 
paper, may be useful to those interested in this phase of the study of 
life. 


THE NAUTILUS. 21 


The topography of Santa Catalina Island is bold and rugged. In 
many or most places the bluffs rise abruptly out of the sea in per- 
pendicular masses several hundred feet in height ; occasionally they 
are lower and assume the form of wall-like buttresses or small 
rounded headlands jutting out more or less into the sea, back of 

-which the land rises in steep, abrupt elevations more or less broken, 

to the general level of the main bluff. The summits of the bluffs 
are sometimes jagged and rough, occasionally rounded off more or 
less smooth or level, intersected by small gulches, and a few deep 
canyons. The surface of the interior back of the bluffs gradually 
rises and is diversified as all mountainous regions are, and stretches 
off to the foot of ‘* Black Jack,’ a cone with its peak 2,000 feet high, 
and ‘‘ Orizaba”’ or ‘* Brush Mt.,” ridge-like in form with its highest 
elevation 2,100 feet above the level of the sea. These two peaks are 
the highest on the island, and are located about its centre. They 
are a mile or more apart and stand dome-like on the main ridge, 
which has an average elevation above the sea of about 1,400 feet. 

The main canyons, which are few in number, are narrow and 
deep. The beds of these great washouts rise but a few feet above 
sea level for a mile or two inland, where they divide into smaller 
gulches that rise rapidly into and drain the higher slopes of the main 
ridge or backbone of the island. 

At the mouth of Silver Canyon, which is really the only washout 
I saw on the island worthy of the name canyon, there is an immense 
and grand bluff of volcanic rock that rises perpendicular to almost or 
quite the level of the main ridge of the island, and crowds the mouth 
of the canyon into a narrow gorge but a few feet in width, forming 
a grand mass of ‘lava flow” for study and contemplation. This 
canyon is located on the south side of the main ridge about 7 miles 
from Avalon. The bluff stands on the east side of the canyon, ex- 
tends a short distance inland, where it becomes broken into steep 
rocky declivities and abrupt slopes, covered with a thin coating of 
soil, and overrun by scrubby bushes, cactus and other plants, all 
mingled together in wild confusion, barring out in most places the 
foot of man. The smaller or side gulches that drain into and inter- 
sect the main canyons are numerous, generally short, and sometimes 
quite deep and canyon-like, with steep sides, and separated by sharp, 
narrow, barren, rocky ridges that run off in every direction like the 
arms of an octopus, joining the main ridge higher up and near the 


22 THE NAUTILUS. 


middle of the island. On these rocky ridges, which are generally 
free from brush and chaparral, one may find rough trails, or get 
along by some rough climbing in his search for specimens, if he has 
a pair of stout legs and strong hob-nailed brogans under him. The 
only wild creatures that inhabit these islands to-day, so far as my 
knowledge goes, are wild goats (introduced with sheep), wild hogs 
(introduced and found to-day only on Santa Cruz and Santa Rosa 
Islands), foxes, mice, birds, lizards, snakes (rare), snails and insects. 
I have no evidence to show that any other animals except the 
Indians ever did inhabit them; but there are reports of the discov- 
ery of the bones of some large creature on Santa Rosa Island some 
years ago by Dr. Yates. 

The northern and more shaded slopes of these island ridges are for 
the most part covered with scrub-oak bushes and other chaparral of 
various kinds, their branches low and reaching the ground, the twigs 
interwoven in many places so that all travel through this tangled 
wildwood is shut out except an occasional place where the sheep and 
goats have browsed off the lower twigs and made narrow openings or 
rough trails in their search for food during the dry season, or in 
seeking cool, shady retreats during hot summer days. Cacti have 
nearly full possession of the south and sunny slopes or exposures of 
the ridges on the island, and here on Santa Catalina, so far as my 
experience goes, is the breeding ground and home of the various 
kinds of snails, while the north and more shaded slopes are destitute 
or deserted by these children of the mist. 

Notwithstanding the thin, scanty soil in most places on the steep 
slopes and narrow rocky ridges, the cactus secures a tolerably firm 
hold by sending strong, wiry roots down into the cracks and crevices 
of the bedrock, and in spite of the long dry weather during the sum- 
mer they succeed wonderfully in.developing their stout, succulent 
and curious forms. 

Sometimes these plants are isolated, but generally they grow in 
dense patches and frequently take full possession of ridge, hill and 
slope where they stand in great masses, and apparently the more 
crowded they are the larger and stouter they grow, and armed as 
they are, with long, sharp thorns and thousands of fine needle-like 
‘¢ pointers ” barbed to the end, one must work among them in his 
search for specimens with great care, otherwise he may receive some 
painful stabs and wounds which I have frequently met with in my 


THE NAUTILUS. 23 


eagerness to secure some prize that imagined it was safe when within 
a ‘‘ crown of thorns.” 

A few of the main creeks and sluiceways are shallow, broad and 
open, and cannot be classed ascanyons. Their creek-beds are some- 
times bordered by small, narrow flats or slopes, with a background 
of smooth rolling hills and sunny declivities that become more ab- 
rupt, rocky and broken as they rise and join the main ridge. On 
some of these little flats, directly along the banks of the creek, there 
are occasional patches of small willows, intermingled with bushes 
and shrubs of various kinds. On the southern sides of these open 
creeks or sluiceways the land generally rises more abrupt and rapidly 
than on the opposite side, is more rugged and is densely clothed with 
the impenetrable chaparral, mingled frequently with cactus, and 
presenting rather a strange contrast to the barren, treeless and 
shrubless slopes on the opposite side of the creeks, 

The aspect of these islands during the dry season is dreary 
enough, and yet, even then, there is a sort of melancholy charm 
about the scenery, especially to those who want to see and study old 
mother nature in all her moods, which are about as changeable and 
fickle as her greatest offspring, the genus Homo, 

The brown and sere vegetation, the barren and dried-up soil, 
ridge and slope strewn with fragments of disintegrating ledges of 
vari-colored rocks, the dumb waterless streams that sing no song 
and produce no “speckled beauties” to the great disgust of the 
enthusiastic ‘ fly-throwers,” and the hazy atmosphere that frequently 
hangs like a veil over hill and mountain, and lends a dim, distant and 
dreamy appearance to the landscape, are conditions not calculated 
to excite our enthusiasm, and leaves the imagination about as barren 
of glow as the landscape is of flowers and green grass. With the 
advent of the wet or rainy season however, all this dreariness is 
changed and so quickly that one wonders at the sudden transforma- 
tion of the landscape from a dreary desert waste to a beautiful bloom- 
ing garden wrought by the magic chemistry of the rains and dews 
upon the dry, warm earth. 

Perhaps in no other part of our blessed republic is there so sudden 
and rapid a transition in the growth of vegetation, and hence in the 
general aspect of the landscape, as occurs in Southern California, 
after the heavy rains fall and the ground becomes well saturated 
with moisture. I know of no better fact that illustrates so well the 


24 THE NAUTILUS. 


effect of conditions in the environment, not only on vegetable but on 
all other forms of life as the application of moisture to the warm dry 
soil, and I may add right here, that in my opinion the proportions 
of heat and moisture, especially in the early stages of growth of an 
organism, is probably the most fruitful source of variation. 

The rains of Southern California appear to be brewed in the 
south, at least they are brought here on the wings of the south wind. 
When the rains are excessive, the gulches, creeks and canyons on 
these islands become raging torrents; the thin soil in many places, 
and especially on the south slopes which receive the full force of the 
storms, becomes filled with water to the bedrock; then landslides 
more or less extensive occur, when rock, land and cactus are launched 
into the raging waters and carried out to sea. 

With these destructive occurrences whole colonies of snails are 
frequently carried away and destroyed, except occasionally a few 
fortunate individuals that may become stranded with other débris 
lower down on the sides of the creek or canyon, where if the con- 
ditions are favorable a new colony will spring up with such modifica- 
tiont of the creature and the shell as the combination of the already 
organized creature and the new conditions in the environment de- 


termine. 
(To be Continued.) 


PUBLICATIONS RECEIVED. 


TuHeE Fossit Lanp SHELLS OF BERMUDA. By Addison Gulick 
(Proc. Acad. Nat. Sci., Phila., 1904, pp. 406-425, plate 36). The 
shells collected by the author from quarries of the eolian limestone 
of Bermuda are described and discussed in this valuable paper. Of 
17 species of land snails found fossil, 14 are probably peculiar to 
Bermuda. The recent fauna contains 13 indigenous species, 6 of 
them peculiar to the island. The most notable of the fossils discov- 
ered by Mr. Gulick are new species of Pacilozonites, Euconulus, 
Zonitoides, Vertigo (2 species), Carychium and a Strobilops referred 
to hubbardi. ‘‘ Dr. Pilsbry’s conclusion, from the anatomy of Pecil- 
ozonites, that the oldest importations to Bermuda came from contin- 
ental America, is thus confirmed by a large majority of the fossil 
forms.’’ Some of the commonest species in the modern fauna are 
wanting in the fossil deposits, such as Polygyra microdonta and Heli- 
cina convera. Mr. Gulick gives an interesting discussion of the con- 
dition of the island at the time the extinct forms flourished, too long 
for abstract here.—H. A. P. 


WHE NAUTILUS. 


Vou. XIX. JULY, 1905. No. 3. 


POLYGYRA DECEPTA N. SP. 


BY GEORGE H. CLAPP. 


While collecting at Blount Springs, Ala., in July, 1904, Mr. 
Herbert N. Smith gathered a good series of shells which, at first 
glance, appeared to be Polygyra iirsuta, but careful examination 
showed two species, a small form of typical Airsuta, gr. diam. 7, 
lesser 64, alt. 44 mm., and the above-named new species, in the pro- 


portion of about 1 of the former to 7 of the latter. 
4 


P, decepta n. sp. P. hirsuta Say. 


By comparison with hirsuta the following differences will be 
noted: Lip broader and more rounded at the top so that when the 
shell is viewed from below, the body-whorl joins it in a regular curve 
instead of forming an obtuse angle; parietal tooth hooked at the 
outer end and curving into the aperture, the lip being deeply re- 
cessed around it; lip-notch narrow and sinuous with a well raised 
margin which projects above the level of the parietal tooth; width 


26 THE NAUTILUS. 


of aperture, measured from back of lip to edge of parietal callous 
across the lip-notch, more than half the length, while in hirsuta it is 
less; parietal tooth not quite joining lip at basal margin; internal 
tubercle short and completely covered by the lip so that it is not 
visible through the base of the shell. The parietal tooth is con- 
nected to the end of the lip by a slight buttress and there is a well 
developed tooth-like process on the lip, but these characters are 
common to most of the species of this group. Color and hairs about 
the same as in hirsuta. 

The outline figures bring out the differences better than the de- 
scription, decepta being drawn from the type and hirsuta from a 
Blount Springs shell. 

Type: Greater diam. 7, lesser 63, alt. 4? mm., whorls 5. 

Greater diam. 64, lesser 53, alt. 44 mm., whorls 42. 

These measurements show the extreme variation in size. 

Type No. 5223 of my collection and cotypes in the collections of 
the Academy of Natural Sciences, Bryant Walker and T. H. 
Aldrich. 

In the character and shape of the lip-notch this species bears a 
strong resemblance to P. pilula Pils. but differs in other important 
points. 


NOTE ON A VARIETY OF CREPIDULA NIVEA C. B. ADAMS, FROM SAN 
PEDRO, CALIFORNIA. 


BY W. H. DALL. 


I have recently received from several Pacific coast correspondents 
a curious form of Crepidula nivea C. B. Adams, the form which on 
that coast takes the place in the fauna occupied by C. plana Say, on 
the Atlantic shores, and usually occupies a situs on the interior of 
dead, univalve shells, especially such forms as Lunatia; but is some- 
times found between dead, but still paired, bivalves, or in the borings 
of Lithophaga or Pholas. It has as many forms as the oct have dif- 
ferences, but, in general, is externally flat or concave and more or 
less lamellose, of a white color, and elongate-ovai shape. 

The specimens referred to, however, broke all records by being 
uniformly straight, convex, smooth, equilateral, white and posteriorly 
attenuated. It was obvious that the uniformity was due to some 
special sctus, but what it was I could not imagine. The other day 


— oe, 


THE NAUTILUS. 27 


Mrs. W. H. Eshnaur satisfied our curiosity and excited our surprise 
by sending several of these shells im situ, and, of all places, on the 
valves of Glottidia albida Hinds! The latter were well grown, and 
the Orepidula exactly covered the outside of the valve, some speci- 
mens having a Crepidula on both valves, others only on one. 

It is well known that the brachiopod in question burrows in the 
sand; a mucus which exudes from it consolidates the adjacent sand 
into a sort of tube, from which the distal margins of the valves pro- 
trude a little. Hence the Crepidula could satisfy its instinct for 
being on the inside of things, yet not out of reach of food, and the 
brachiopod was supplied gratis with a well-fitting cuirass or acces- 
sory armor, both benefiting. This peculiar-looking Crepidula might 
appropriately take the mutational name of glottidiarum, in case one 
wishes to refer to it briefly. It forms a striking instance of the way 
in which form is dependent in this genus on situs, a subject some- 
body would find it profitable to work up. 


NOTES ON A COLLECTION OF SHELLS FROM BASS LAKE, INDIANA. 


BY FRANK COLLINS BAKER. 


Some months ago my assistant, Mr. Frank M. Woodruff, made a 
small collection of shells at Bass Lake, Indiana, which seems of in- 
terest enough to list. Bass Lake is a beautiful sheet of water, the 
clear, crystal depths of which teem with fish and mollusks. The 
specimens are particularly large and fine. 

Anodonta grandis Say. The specimens obtained are the form 
called salmonia by Lea. As stated by Simpson, this form is nearly 
always blistered and scaly. The salmon color is very beautiful in 
some specimens. 

Anodonta grandis var. footiana Lea. 

Spherium occidentale. 

Calyculina truncata. 

Pisidium abditum Haldeman. 

Vivipara econtectoides Binney. The individuals from this locality 
vary from uncolored to distinctly four-banded, and are notably large 
and fine. 

Amnicola limosa Say. 

Amnicola limosa var. parva Lea. 


28 THE NAUTILUS. 


Gontobasis livescens Menke. 

Physa heterostropha Say. ‘The individuals are smooth and highly 
polished, and are destitute of impressed spiral lines. One specimen 
is a scalariform monstrosity. 

Physa integra Haldeman. Rare. 

Lymnea desidiosa Say. Many zebra-like forms. 

Planorbis trivolvis Say. 

Planorbis bicarinatus Say. 

Planorbis parcus Say. 

Segmentina armigera Say. 


Note on Valvata. 

A collection of Valvatz from Long Lake, Lake County, Illinois, 
recently received, is of some interest, especially as regards the rela- 
tive numbers of individuals. 

Valvata tricarinata 107. 

Valvata tricarinata confusa 6. 

Valvata bicarinata 1. 

Valvata biecarinata normalis 53. 


A NEW SPECIES OF SUCCINEA. 


BY HENRY A. PILSBRY. 


Succinea indiana n. sp. 

Shell obesely ovate, thin, brownish-amber or raw sienna colored, 
the apex reddish. Sculpture of fine growth-lines and wrinkles, be- 
coming rather coarse wrinkles on the last half whorl. Whorls 34, 
very convex, the last large and inflated. Aperture large, oblique, 
the outer lip either regularly arcuate or somewhat flattened in the 
middle. Columella thin and strongly arcuate throughout. 

Length 11, diam. 7, length of aperture 7.7 mm. 

Length 10.7, diam. 6.9, length of aperture 7.7 mm. 

Length 10, diam. 6, length of aperture 7 mm. 

New Harmony, Posey Co., Indiana ; cotypes in collections A. N. 
S. P., the State Museum at Indianapolis, and L. E. Daniels; collected 
by L. E. Daniels. 

This species seems to be closely related by the obese shape to 
S. campestris of Georgia and Florida and S. unicolor Tryon of New 


THE NAUTILUS. 29 


Orleans. It differs from both in color and texture. S. grosvenorr 
Lea (of which S. greeri Tryon is a synonym) has a longer spire and 
smaller last whorl. 

While it seems strange that a new Sueeinea should be found in so 
well known a district of the middle west, yet I am unable to identify 
the form found by Mr. Daniels with any described species. 

It was found in 1904 just south of New Harmony on the hillside 
facing the west between the marl cliffs and the highway. 


ON SOME NEW VARIETIES OF CYPRAEA. 
BY SLOMAN ROUS. 


Cyprea miliaris var. Brooket n. var. 


Dorsal surface light yellowish-brown with a subquadrate patch of 
a shade darker color, sprinkled with very faint, scarcely perceptible 
spots of lighter color, base and extremities pure, shining white, colu- 
mella tinged with same color but lighter than dorsal surface. 
Long. 29, lat. 17.3, height 14.5 mm. Philippines. 

This beautiful little shell is in the collection of Mrs. J. M. Brooke, 
of Lexington, Va., who received it from a friend in Cebu, P. I. 


Cyprea capensis var. Elizabethensis n. var. 


Rather wider and higher in proportion to its length than is usual 
in normal capensis, with the irregular brown patch so often found in 
this species, but with the dorsal line (which in C. capensis is usually 
very indistinct and often invisible, being crossed by the lire) very 
broad, distinct and smooth. The lire on the outer side of the shell 
are painted with the same color as the dorsal patch. Length 29, 
width 18.2, height 14mm. Port Elizabeth, Cape of Good Hope. 

I lived in Port Elizabeth over forty years during which I collected 
very many specimens of C. capensis, and saw, I think, almost all the 
shells about which there was anything unusual that were taken by 
the other local collectors all of whom were my intimate friends. I 
do not recollect seeing a shell like this and I scarcely think it could 
have escaped my notice. The most remarkable difference between 
it and the type form being the brown color of the ribs below the 
dorsal line. 


30 THE NAUTILUS. 


CYCLADIDE OF THE SOUTHERN STATES. 


BY VY. STERKI. 


The year 1904 has brought us many good things in the line of 
Cycladide, especially from the South, from Indiana and from Can- 
ada. Our knowledge of these small bivalves from the Gulf States 
has been very limited. Mr. H. E. Sargent had done some collect- 
ing in North Alabama, and Mr. Frierson in North Louisiana, and 
a few lots had been seen from other states. The collecting of Mr. 
Smith in Georgia and Alabama, mainly along the Coosa river, and 
of Mr. A. A. Hinkley in Alabama and Mississippi, have opened that 
territory known as particularly rich in Strepomatide and Unionidae, 
and added considerably in regard to systematics as well as geograph- 
ical distribution. The specimens collected by Mr. Smith were 
kindly sent for examination by Mr. Bryant Walker, those of Mr. 
Hinkley partly by himself and partly by Mr. Walker. The follow- 
ing list and notes may be of interest to students of a much neglected 
yet integral part of our mollusk fauna : 

Pisidium virginicum Gm. From Georgia, Alabama and Missis- 
sippi, common and rather variable. The prevalent form along the 
Coosa river is decidedly oblique and rather ‘angular in outlines; it 
may represent a variety. 

Pis. compressum Pr. Common and decidedly variable, making a 
considerable addition to the already wide range of variation of this 
species, and some forms seem to represent real varieties, 

Pis. kirklandi Sterki. Shoal creek near Florence, Town creek at 
Montevallo, Ala., full grown and young specimens; seen from the 
South for the first time. There is a small but distinct roundish, 
somewhat raised, granular area in the center of each beak, a char- 
acteristic feature of the species, not noted in the description (THE 
NAUTILUS, xiii, p. 11, 1899). 

Pis. cruciatum Sterki. Shoal creek, Florence, Ala., collected by 
Mr. Hinkley. This minute Pisidium, distinguished by the unique 
formation of its hinge and the shape of the ridges on the beaks, had 
also been known only from Ohio, Michigan and Illinois (also fossil). 

Pis. fallax Sterki. Two badly eroded specimens from the Town 
creek, Montevallo, Ala. The species is widely distributed and vari- 
able, and specimens of it are generally more eroded than any others. 


THE NAUTILUS. 31 


Pis. limatulum Sterki. Various places in Alabama. 

Pis. peraltum Sterki. Grenada, Miss., only one specimen, but 
good and characteristic, collected by Mr. Hinkley. Had been known 
from Virginia, Kentucky, Illinois and Iowa. A form from Mich- 
igan referred to it seems to be distinct. 

Pis. noveboracense Pr. Specimens from Alabama and Missis- 
sippi were referred, somewhat doubtfully, to this widely distributed 
and very variable species. Some forms from various places of the 
three states represented partly by hundreds of specimens, are either 
varieties or distinct species, and still more materials are desirable. 

Pis. atlanticum Sterki. Wetumpka, Ala. 

Pis. singleyi Sterki. Tuscaloosa, Ala, (over 200 specimens) and 
Columbus, Miss. (Mr. Hinkley); Buxahatchee Creek, Calera, Ala. 
(Mr. Smith). Somewhat different from the Texas form, rather like 
those from Frierson, La. (collected by Mr. Frierson), but larger. 

Several other Pisidia have been seen, represented by small num- 
bers of specimens; with more materials on hand, they may prove 
distinct species or varieties. 

Spherium solidulum Pr. Several places in Alabama and Georgia, 
variable. Good numbers, e. g., from the Buxahatchee creek, near 
Calera, Ala., collected by Mr. Smith; one form closely resembles 
Ohio specimens regarded as typical, another, in the same lot, is 
rather different, the sulcation is much finer and the young are of 
somewhat different shape. The two forms are separable, one by 
one; whether the latter represent a variety or a distinct species will 
be ascertained with additional materials. From some places, the 
specimens were small and poor, yet seemed to be true. 

Sph. stamineum Con. Several places in Alabama and Mississippi; 
over a hundred good specimens from the Town creek, Montevallo, 
Ala., “‘in weeds and mud,” collected by Mr. Smith. A few speci- 
mens in the same lot were rather different, whether distinct, must be 
made out later. 

Sph. striatinum Lam. Georgia, Alabama and Mississippi. Rather 
different forms from various places seemed to range under this very 
polymorphous species. Although many thousands of specimens of 
“ Sph. striatinum ”’ were seen from a wide territory, it has not yet 
been possible to define geographical varieties to any degree of satis- 
faction, nor to exclude with certainty such forms as may be con- 
sidered distinct. 


32 THE NAUTILUS. 


Sph. fabale Pr. Several places in Alabama, evidently common ; 
scarcely different from the more northern form (Ohio, ete.). 

Sph. occidentale Pr. Near the Coosa river, 300 good specimens, 
and a few from the Shoal creek, Ala. (low woods, Mr. Smith); 
Boligee, Ala. (Mr. Hinkley). 

Calyculina* elevata Hald. From various places in Alabama ; 
Columbus, Miss.; also received from Frierson, La. 

Cal. transversa Say. From a number of places in the three 
States, generally small and slight, while from Frierson, La., I have 
received specimens of large size. 

Cal. truncata Linsl. Specimens from near Wetumpka, Ala., are 
rather resembling the Cal. from New York, Ohio, ete. 

Cal. securis Pr. (?) A single specimen from Spring creek, Eb- 
enezer Church, Ala., seems to range under that species. 

A small, greenish to brownish Calyculina from Grenada, Miss., 
collected by Mr. Hinkley, may be a variety of Cal. securis; the 
same, although somewhat different, has been seen from Frierson, La. 

Of Eupera, some specimens have been collected in Alabama, but 
were not examined. Huperais known to inhabit all the Gulf States 
(except Mississippi?), and it is very desirable that more materials 
be brought up for systematic examination. 

Although the specimens seen so far hardly justify speaking of 
lacking species, yet it may be noted that it was surprising not to 
see a trace of such widely distributed and common species as Pis?- 
dium variabile Pr. and punctatum Sterki; also none of Spherium 
simile Say and rhomboideum Say and, as it seems, Calyculina par- 
tumeia Say. 


SHELL COLLECTING ON THE MOSQUITO COAST OF NICARAGUA.—III. 
BY W. H. FLUCK. 


Strombus pugilis nicaraguensis var. nov. 


The shell differs from the typical pugilis, especially in its smaller 
size, varying very little from 55 to 62 mm. ‘The spire is regularly 


* Dr. E. von Martens thinks Calyculina Clessin should be replaced by Mus- 
culium Link. 


THE NAUTILUS. 33 


tuberculated, rather high, acute, and sculptured with distinct revoly- 
ing raised lines; prominent revolving ridges also mark the entire 
body-whorl, or in some specimens a large portion of it. The color 
is uniform dark salmon, except the spire, which tends to whiteness, 
while the aperture is lighter and brighter than the external parts, 
and anteriorly has just a suggestion of purple. The epidermis is thin. 

Specimens were taken in large quantities, and were fully ma- 
tured, with lip expanded in the characteristic way. I also have six 
quite young shells, which contained hermit-crabs, in which the lip is 
incomplete. My attention was first called to the small size of these 
shells by my friend Mr. Morris Schick, of Tropico, Cal., to whom I 
sent specimens from Nicaragua about 1902. I was loth, however, 
to report the shell as a new variety until Mr. C. W. Johnson wrote 
me, saying: ‘* The beautiful little Stromb certainly deserves a var- 
ietal name. * * * * They are gems, and are as distinct as many of 
the varieties to which names have been given. They are only about 
half the size of my Florida and West Indian specimens.” I then 
requested Mr. Johnson to describe the shell in Tue Navri.uvs, but 
he generously asked me to do so. I hope this will explain how I came 
to “‘butt into”’ the variety-making business, and will appease the 
wrath of the bunchers. 

I wish to acknowledge that Mr. Johnson has pointed out to me 
several of the points of difference in my shell, and has also suggested 
the very appropriate varietal name. 

Specimens were taken now and then all along the beach between 
the Principulka and the Wawa rivers. At Kia, an Indian village 
13 miles north of Wounta Haulover, the natives find it in such 
quantities that it is regularly sought after as an article of food. 
Boiled ‘‘atula,”’ as the Indians call it, is tough eating, almost as 
tough as old parrot, as I know from experience when dining under 
the palms at Kia, but ‘any old thing ” satisfies a hungry traveler 
when plenty of green cocoanut water can be had to wash it down. 

Inquiry among the people elicited the fact that most of these mol- 
luses were found just north of the Wawa river, about four miles from 
the village. I went there and found large quantities of them in the 
shallow water. This mollusc is a very beautiful one ; the eyes are 
remarkable and seem to be eying one, and are ever on the alert, 
It is about as active a snail as I ever saw, using its operculum asa 
lever by which it was enabled to leap out of a glass fruit dish in 


34 THE NAUTILUS. 
which I placed one. The types of this shell are in my own collec. 
tion and the Boston Society of Natural History. Other collectors, 
however, have specimens, as I have sent out many sets. 

(To be Continued.) 


NOTES. 


NATICA INTRICATOIDES Hip. ON THE ALGERIAN Coast.—Last 
year I mentioned Natica prietot Hidalgo, as found by myself at 
Algiers. Like Natica intricatoides, another very rare species from 
the Spanish coast, it had not been found before on our shores; now 
Natica intricatoides has been detected also at Algiers by the General 
de Lamothe, the well-known geologist, who gave me several beauti- 
ful specimens. It was associated with JV. filosa, NV. macilenta and 
NV. prietoi ; of the latter he found a single specimen. In the same 
lot from Sidi-Ferruch in the vicinity of Algiers, I saw a single and 
very fine Wassa, in fair condition, which may be NV. compta A. Ad., 
known only as a West African shell.—C. F. Ancery. 


PLANORBIS ALABAMENSIS AND DILATATUS IN THE FLORIDIAN 
PLiocENE.—The only small Planorbis reported from the Caloosa- 
hatchee Pliocene in Dall’s great work on that fauna is P. exacutus 
Say. Some years ago I received from Mr. Johnson numerous 
specimens of another species, P. alabamensis Pils. They differ con- 
stantly from the recent form in having a decidedly smaller umbili- 
cus. This variety may be called P. alabamensis avus. With these 
there were a few specimens of P. dilatatus Gld., which also differ a 
little from the typical form in having a smaller aperture and dis- 
tinctly thickened lip.—H. A. PILssry. 


Note on Canapian UNIO LuTEOLUS.—While examining re- 
cently the shells in the collection presented to the Smithsonian Insti- 
tution by Dr. Isaac Lea, I was surprised to observe that a large 
green specimen of Unio luteolus, from the ‘ Rideau Canal, Ottawa, 
Canada,” had written upon one of its valves in his well-known hand- 
writing the name “‘U. radiatus.’””’ The entry number of the shell is 
85042. The error would not be remarkable if made by an authority 
of less repute than Dr. Lea, as many of the male Juteolus found in the 
Rideau Canal resemble radiatus in outline, coloring and even in the 


THE NAUTILUS. 35 


texture of the epidermis, urged by some as a distinguishing charac- 
teristic. A full series of the shell from the Rideau Canal here, 
where it occurs abundantly, and where radiatus—common elsewhere 
in this vicinity—does not occur at all, would however be readily re- 
cognized as luteolus. But Dr. Lea’s identification of the Ottawa 
shell as radiatus is liable to mislead, and notwithstanding this cor- 
rection doubtless will mislead many students, who while his great 
collection endures will have recourse to it for the solution of not a 
few difficulties —F. R. Larcurorp, Orrawa, Onr. 


PUBLICATIONS RECEIVED. 


ANNOTATED List oF THE Types OF INVERTEBRATE CRETA- 
cEOouSs Fossits in the collection of the Academy of Natural Sciences 
of Philadelphia. By Charles W. Johnson. Proc. A. N. S. Phila., 
1905, pp. 4-28. Four hundred entries, exclusive of synonyms, are 
comprised in this catalogue of types, which is one of the fruits of Mr. 
Johnson’s labor in working over the entire collection of American 
Cretaceous invertebrates in the Academy’s collection. The follow- 
ing groups are represented: Corals, 5 species; Annelida, 8 species ; 
Polyzoa, 31 species; Brachiopoda, 4 ‘species; Echinoderms, 23 
species; Crustacea, 4 species; Mollusca, 325 species. No attempt 
at full synonymy is made, but the author’s broad acquaintance with 
the subject enables him to add many critical notes and to bring the 
list abreast of the times in nomenclature. Three new species are 
introduced: Memodon conradi Johnson, Cuculleea gabbi Johnson, 
Straparollus deplanatus Gabb.—H. A. P. 


Nores ON THE Motuvuscs, RepTiLes AND AMPHIBIANS OF On- 
TONAGON Co., Micnuican. By A. G. Ruthven. Sixth Ann. Rep. 
Mich. Acad. Sciences. Records of Mollusca from the Upper Pen- 
insula have been very rare hitherto. This list of 71 species therefore 
fills a gap in the map. 


FossiI_s oF THE BAHAMA ISLANDS, with a list of the non-marine 
Mollusks. By Wm. H. Dall. Extract from “ The Bahama Islands.” 
The marine fossils noted are all of recent species. Phacotdes penn- 
sylvanicus, Codakia orbicularis, Tellina radiata, Arca occidentalis 


36 THE NAUTILUS. 


and Arca reticulata are figured. The list of non-marine forms com- 
prises 147 species and numerous varieties, the following being de- 
scribed as new: Cerion rhyssum, Cepolis (Hemitrochus) exumana, C. 
(H.) agassizi, C. (Plagioptycha) gregoriana, CO. (P.) inaguana, C. 
(P.) pharcida, and a number of varieties. All are figured. An in- 
teresting discussion of the relationships and history of the fauna pre- 
cedes the descriptions. 


Cueck List oF THE Motiusca or New Yorn.—By Elizabeth 
J. Letson. (Bull, 88 N. Y. State Museum, 1905).’ Miss Letson has 
brought together references to the New York mollusca from all 
sources from the time of DeKay (1843) to the present time ; so that 
her check list is a bibliography as well. The marine fauna is not a 
rich one. Of non-marine forms, 243 species and some varieties are 
recorded ; and though a few given on the authority of old records 
will probably be deleted, yet the number of species remaining is re- 
markably large for a Northern State. The work will be useful to all 
interested in the species of our northern and middle States.—H. A. P. 


BEMERKUNGEN UEBER DIE CHITONEN-SAMMLUNG IM ZOOLOG- 
ISCHEN Musreum zu Lreipen.—Von Dr. H. F. Nierstrasz. Notes 
Leiden Mus,, vol. xxv. Dr. Nierstrasz is known as a careful and 
competent author on Chitons by his report on those of the Siboga 
Expedition. In the present paper he describes as new Callistochiton 
leidensis from Santa Elena and Callistochiton porosus from Rio Jan- 
eiro, and gives interesting notes on various species of Liolophura, 
Onithochiton and other genera. Full details are given of Dr. 
Nierstrasz’s genus Squamipleura, from a series of 40 examples from 
near Timor. It stands between Acanthopleura and Liolophura, but 
nearer the latter. A few locality records, on the authority of 
specimens in the Leiden Museum (no collector mentioned) are un- 
doubtedly erroneous. Jschnochiton magdalensis surely never came 
from Martinique, nor J. punctulatissimus from the Gulf of Mexico. 
The record of Nuttallina scabra from Chili is almost as doubtful; 
and only the most definite data would justify us in adding Acan- 
thopleura granulata to the faune of Magellan Strait and the Cape of 
Good Hope.—H. A. P. 


1Pp. 112, New York State Educational Department, Albany. 


oe NAUTILUS. 


Von. XIX. AUGUST, 1905. No. 4. 


LAND SHELLS OF THE FLORIDA KEYS, 


BY HENRY A. PILSBRY. 


During the spring of 1904 Mr. Clarence B. Moore made an 
exploration of the Keys of Florida primarily for archeological re- 
search, from Key Marco southward to Cape Sable and Long Key, 
then northward on the East Coast to Lake Worth. During this 
cruise he collected shells, particularly Liguus and Oxystyla. The 
latter will form the subject of special report. Subsequently he sent 
Messrs. Fowler and Brown, of the academy staff, to the outer keys, 
Key West to Duck Key. The land shells collected are enumerated 
below. In addition to the species of the Keys I have included those 
taken at Cape Sable. The fauna of the mainland at that place is 
related to that of the Keys, being practically insulated by the ever- 
glades which extend across the peninsula. 

With the exception of Key West and Key Largo, very few 
records of land shells have heretofore been made from the Keys, and 
from many of them no mollusks whatever have hitherto been repor- 
ted. The prevalence of the same species on most of the Keys sup- 
ports Professor A. Agassiz’s theory that that land area is in process 
of disintegration, the present islets being remnants of a once con- 
tinous land-mass. 

Cyclostomatide. 

Chondropoma dentatum Say. Two miles east of Planter, Key 
Largo, East end Windly’s Island or Umbrella Key, Lignum Vitex 
Key, West end Upper Matacumbe Key, Summerland Key, Big 
Pine Key, Little Pine Key, Sugar-loaf Creek, Sugar-loaf Key and 
Key West. 


38 THE NAUTILUS. 


Truncatellidez. 


Truncatella caribeensis ‘Sby’ Rve. Rabbit Key, Monroe county; 
Bahia, Honda Key, Key Largo, Big Pine Key, Sugar-loaf Key, 
Key West. 

Truncatella bilabiata Pfr. Blue Hill Island near Goodland Point, 
Key Marco, near Punta Rassa, Fakahatchee Key, Ten Thousand 
Islands, Pavilion Key, Bahia Honda Key, Key Largo, Big Pine 
Key, Sugar-loaf Key, Key West. 

Truncatella sp. Sugar-loaf Key. 


Frelicinide. 

Helicina orbiculata Say. Little Palo Alto Key, Big Palo Alto 
Key, Lignum Vite Key, Snipe Key, Key West, Pineland, north- 
west end of Pine Island, Fakahatchee Key in Ten Thousand Islands, 
East Cape, Cape Sable, Little Pine Key. 

Helicina tantilla Pils. Duck Key and Grassy Key. Originally 
described from Palm Beach, on the east coast. 


Helicide. 

Cepolis varians Mke. South end of Key Biscayne, Cape Florida, 
West end of Upper Matacumbe Key. 

Polygyra cereolus (Muhlf.). East end Lower Matacumbe Key ; 
Long Key; Big Pine Key; Little Pine Key; Sugar-loaf Key at 
Sugar-loaf Creek ; Boca Chica Key ; near Blind Pass, Middle Cape, 
Cape Sable, and a small Key opposite Flamingo, in the same 
region. 

Polygyra cereolus carpenteriana (Bld.). Western end of Upper 
Matacumbe Key; Lignum Vite Key; Summerland Key ; Cudjoe 
Key ; Key West near Punta Rassa; Blue Hill Island near Good- 
land Point, Key Marco; Fakahatchee Key in the Ten Thousand 
Islands; Turner Key; Rabbit Key; Pavilion Key. 

Polygyra uvulifera (Shuttlw.). Big Pine Key; Blue Hill Island 
near Goodland Point, Key Marco; Turner River, Turner Key ; 
Middle Cape and East Cape, Cape Sable. 

Thysanophora selenina (Gld.). Big Pine Key; Blue Hill Island 
near Goodland Point, Key Marco; Fakahatchee Key in the Ten 
Thousand Islands. (Helix selenina Gld.—Helix vortex Pfr., preoc.). 

Thysanophora plagioptycha (Shuttl.). Mainland at Middle Cape 
Cape Sable; Duck Key; Big Pine Key. 

Thysanophora sp. undet. Little Pine Key. 


THE NAUTILUS. 39 


Bulimulide. 


Drymxus dominicus (Rve.). Cutler; Fakahatchee Key, Ten 
- Thousand Islands. 

Drymeus multilineatus (Say). Big Palo Alto Key; Western end 
of Upper Matacumbe Key; Lignum Vite Key; Eastern end of 
Lower Matacumbe Key; Noname Key; Big Pine Key; Little 
Pine Key ; West end of Cudjoe Key ; Sugar-loaf Key ; Summerland 
Key; Boca Chica Key; Blue Hill Island near Goodland Point, Key 
Marco. 

Liguus fasciatus (Miill.). 

Oxystyla undata reses (Say). 

Oxystyla floridensis (Pils.). 

These species wil] form a special report. 

Urocoptide. 

Urocoptis poeyana (Orb.) var. Big Pine Key. 

Microceramus pontificus (Gld.). Lignum Vite Key; Big Pine 
Key ; Summerland Key. 

Microceramus floridanus Pils., var. Fakahatchee Key, Ten 
Thousand Islands; Turner Key. 


- Cerionide. 


Cerion incanum (Binn.). Southern end of Key Biscayne, Cape 
Florida; Western end of Long Island or Cantation Key; Eastern 
end of Windly’s Island or Umbrella Key ; Indian Key; Eastern end 
Lower Matacumbe Key ; Long Key ; Grass Key ; Vaca Key ; Bahia 
Honda Key; Little Pine Key: Noname Key; Big Pine Key; 
Summerland Key ; Cudjoe Key ; Sugar-loaf Creek, Sugar-loaf Key; 
Snipe Key; Boca Chica Key; Key West. Found everywhere in 
copious quantity. 

Strobilops sp. undet. Big Pine Key. A young shell of the daby- 
rinthica type. 

Pupillide. 

Pupoides modicus (Gld.). Fakahatchee Key, in the Ten Thou- 
sand Islands. 

Bifidaria pellucida (Pfr.). Big Pine Key, mainland at Middle 
Cape, Cape Sable. 

Bifidaria rupicola (Say). Pineland at northwest end of Pine 
Island; Fakahatchee Key, Ten Thousand Islands; mainland at 
Middle Cape, Cape Sable. 


40 THE NAUTILUS. 


Bifidaria contracta (Say). Pineland, northwest end Pine Key; 
mainland on Middle Cape, Cape Sabie. 
Vertigo rugosula oralis Sterki. Mainland at Middle Cape, Cape 
Sable. 
Vertigo sp. undet. Grassy Key. An imperfect shell. 
1 Achatinidex. 
Melaniella gracillima floridana Pils. Big Pine Key. 
Glandinide. 


Glandina truncata (Brug.). Hammock near north mouth of 
Suwanee river, near Punta Passa; Pineland, northwest end Pine 
Island, also northeast end Pine Island; Blue Hill Island near Good- 
land Point, Key Marco; Fakahatchee Key, in the Ten Thousand 
Islands; Russell’s Key; Wiggins’ Key, Sandfly Pass; Lossman’s 
Key ; Big Pine Key. 

Glandina truncata minor Binn. Mainland, Middle Cape, Cape 
Sable; East end of Lower Matacumbe Key ; Big Pine Key. 


Zonitide. 


Guppya gundlachi (Pfr.). Pineland, Northwest end of Pine Is- 
land ; Fakahatchee Key in the Ten Thousand Islands; mainland at 
Middle Cape, Cape Sable ; Sugarloaf Key. 

Guppya miamiensis Pils. Grassy Key. 

Zonitoides arboreus (Say). Mainland at Middle Cape, Cape 
Sable. 

Zonitoides dallianus (‘ Simpson’ Pils.). Fakahatchee Key in the 
Ten Thousand Islands. 

Zonitoides minusculus (Binn.). Big Pine Key; Fakahatchee Key 
in the Ten Thousand Islands; mainland at Middle Cape, Cape 
Sable. 

Zonitoides minusculus alachuanus (Dall.). Pineland at northwest 
end of Pine Island. 

Succineidex. 

Succinea campestris Say. Lignum Vite Key ; Long Key. 

Succinea floridana Pilsbry, n. sp. 

Shell obesely ovate, thin but strong for the genus, opaque, flesh- 
tinted or pinkish-white, marked with corneous-fleshy streaks, and 
usually a few scattered clear dots, readily seen by holding the shell 
up towards the light; apical whorl usually reddish-brown. Interior 
more or less deeply tinted with ochre-yellow. Whorls 33 to 32, very 


THE NAUTILUS. 41 


convex, the last whorl evenly convex. Sculpture of fine, unequal 
growth-lines and coarse but low wrinkles, with some indistinct 
malleation on the last whorl. Aperture ovate, short; outer lip well 
arched ; columella oblique and nearly straight. 

Length 12.3, diam, 7.2, length of aperture 8 mm. 

Length 12.2, diam. 7, length of aperture 7.8 mm. 

Length 12.8, diam. 7, length of aperture 8 mm. 

Northern end of Big Pine Key, abundant in long grass, types no. 
87358 A. N.S. P., collected by Messrs. Fowler and Brown, June, 
1904. Other localities are Summerland Key, Cudjoe Key, Sugar- 
loaf Key, Boca Chica Key, Key West. On the mainland and keys 
of west Florida at Blue Hill Island, near Goodland Point (C. rsh 
Moore), and one mile east of Marianna, Chipola river (C. W. John- 
son, 1900, one bleached specimen). 

This species has hitherto been considered a form of S. luteola, 
from which: it differs in the much shorter contour and more convex 
last whorl. I have seen no specimens from Florida referable to 
luteola. SS. floridana is also closely related to S. campestris, which 
is still more obese, and more strongly corrugated, with the spire less 
slender. The most nearly related forms are, however, the Antillean 
S. ochracina Gundl. of eastern Cuba and S. dominicensis Pfr. of 
Santo Domingo. In both of these, however, the color is more lemon 
than ochre-yellow. S. dominicensis is a smoother, white and very 
beautiful shell. S. ochracina is somewhat rough, streaked white and 
corneous with a pale lemon tint throughout, and with a longer aper- 
ture than S. floridana. 

S. floridana varies a good deal in size. The largest seen is from 
Key West, 14 mm. long, and the smallest adults are from Boca 
Chica Key, 84 mm. long, with 35 whorls. 


A NEW CALIFORNIAN HELIX. 


BY REV. J. ROWELL. 


Helix (Epiphragmophora) sequoicola soquela n. subsp. 

Shell broadly umbilicate, thickly and regularly striate, very dark 
brown approaching black, of uniform color with the exception of two 
parallel white bands above the middle of the body-whorl, shell de- 
pressed with depressed spire, whorls seven, the last much inflated, 
strongly banded within. Greater diameter 28 mm., height 12 mm. 


42 THE NAUTILUS. 


Differs from dupetithouarst and sequotcola in much darker color, 
more inflated aperture, depressed form, greater breadth, and enclosed 
band of the same color as the body of the shell. 


Habitat, Santa Cruz mountains midway between Soquel creek and 
Skyland. 


REMARKS ON SOME LAND AND FRESH-WATER SHELLS FROM THE 
NEW HEBRIDES, WITH DESCRIPTION OF NEW SPECIES. 


BY C. F. ANCEY. 


The following species represented in my collection were obtained 
from various sources, principally from my regretted friend E. L. 
Layard, the well-known student, and from Dr. Ph. Francois, who 
collected somewhat extensively in the Archipelago several years ago, 
and has explored chiefly the northern group. To the latter I am 
particularly obliged for useful data on several of the localities he vis- 
ited, and for the liberal gift of specimens, most of these, however, 
having been examined by the late Mr. Mabille and forming part of 
the collection of the Paris Museum. 

1. Lamprocystis Layardi (Thomson). 

Hab. Vate island (Glisson, fide Layard). This form is united to 
L. guttula Pfr., by Mr. E. R. Sykes (Proc. Malac. Soc., London, 
1902, p. 196), but having specimens of both I do not share this opin- 
ion, the general aspect being the same, but the columellar insertion 
being different. It was well described and figured by Mr. J. H. 
Thomson (Proc. Zdol. Soc., 1885, p. 25, with fig.). 

2. Macrochlamys (?) Annatonensis (Pfr.). 

Hab. Vate island (Glisson). 

This form is closely allied to ‘* Zonites’’ Vitiensis Mousson, of the 
Viti group. The generic reference is doubtful, but I consider they 
are more nearly related to Macrochlamys than to the European gen- 
era Vitrea or Polita. 

3. Endodonta tenuiscripta Anc. 

Hab. Mallicollo island. 

The original description states that the shell is ‘“ widely umbili- 
cated.”? One must read “ not widely umbilicated’’ (see NAUTILUS, 
1896, p. 90). 

4. Draparnaudia singularis Pfr., var. diminuta Anc. 


Hab. Aneitum (= Annaton) island (fide E. L. Layard). 


THE NAUTILUS. 43 


I venture to give this varietal name to the shell I have mistaken 
for the true H. singularis Pfr. (see NauTitus, 1897, p. 27), which 
is described from Aneitum. According to Mr. Sykes (loc. supra cit., 
p- 197), specimens of the latter, so named by Dr. Pfeiffer, are in the 
British Museum, and are the ordinary, large, strongly-keeled form 
usually met with in collection. The present one is also strongly but 
obtusely angled, has 6 whorls only and the last whorl is not deflected 
at all infront. It is 64 mm. high and 6 mm. wide. In size it is 
quite like D. Walkeri Sykes (loc. supra cit., p. 197, fig. I1), but the 
latter appears to have a higher body-whorl and more rounded peri- 
phery. It was collected on Espiritu Santo island, very distant from 
that of Aneitum. 

5. Dendrotrochus Eva (Pfr.). 

Hab. Vate island. 

It is peculiar, [ think, to the above island. The specimens are 
more commonly white, sharply keeled, with or without a brown lip. 
In others the keel is more obtuse, while in some cases there is a 
brown zone between the keel and the suture. 

6. Dendrotrochus Layardi (Hartm.). 

Hab. Aura (= Aurora island), fide Layard; also Espiritu Santo 
island (J. J. Walker, Dr. Ph. Francois). 

I have seen an extensive series of this fine shell, originally de- 
scribed as ‘‘ Oxychona.”’ It is now well established that Oxychona is a 
genus of Bulimulide allied to Zaplageus and Drymeus, restricted in 
its distribution to Brazil. The present species is related to D. Eva, 
which it appears to replace in the northern group. The following 
variations occurred to my notice: 

a. Plain ashy-white. 

b. Ornamented with a narrow brown line on the keel and the 
suture. 

ce. With a wide dark-brown band between the keel and the sutures, 
sometimes extending, sometimes fading on the upper whorls. 

The lip is either brown or whitish and the base, around the axis, is 
frequently tinged with brown. There are always some minute spots 
and black, oblique lines on the pale ground. 

7. Diplomorpha Brazieri Hartm. 

Hab. Espiritu Santo island. A scarce species, never found, I sup- 
pose, in fresh condition. 


8. Diplomorpha Delantouri Hartm. 


44 THE NAUTILUS. 


Hab. Aura (= Aurora island), Delantour, fide Hartman. 

The numerous specimens from Espiritu Santo island (Ph. Fran- 
gois), belong to a variety major (long. 21—25, diam. 15-16 mm.), but 
otherwise are quite like the type. 

9. Diplomorpha ruga Hartm. 

Hab. Espiritu Santo island. 

10. Diplomorpha Bernier Hart. 

Hab. Espiritu Santo island. I am informed that “ Segon island,”’ 
quoted by Dr. Hartman, does not exist in the New Hebrides. The 
locality is to be corrected to ‘‘ Canal du Second,” Espiritu Santo 
island, 

11. Placostylus (Peecilocharis) Frangoist Mab. 

The types which I have had the opportunity of examining through 
the kindness of Prof. Joubin, in the Paris Museum, appear to be 
conspecific with P. hebridarum of the same author. 

12. Partula Auraniana Hartm. 

Hab. Buka-buka, Torres group (Dr. P. Francois). 

13. Opeas oparicum Pfr. 

Hab. Espiritu Santo island (Dr. P. Francois). 

14. Auriculus elongatus Pfr. 

Hab. Espiritu Santo island (Dr. P. Francois). 

15. Physa Layardi Anc., n. sp. 

Testa oblongo-attenuata, tenuis, nitida, pallide corneo-virens, indu- 
mento ferrugines plerumque codperta. Spira conoidea, satis pro- 
ducta, regularis, acuta. Anfractus 5 convexi, sutura subappressa, 
obliqua divisi, lineis incrementi vix conspicuis, in ultimo antice 
curvatis; ultimus ovalis, basi attenuatus. Apertura subobliqua, 
superne angustata, irregulariter ovalis, intus nitida, basi interdum 
lacteo-subincrassata, margine sinistro antrorsim flexuoso. Columella 
crassa, lactea, intus late pliciformis, plica parum prominente. Peris- 
toma simplex, acutum, ad columellam anguste reflexum, marginibus 
callo tenui junctis. 

Long. 94, diam, 54, alt. apert. 5? mill. 

Hab. Vate island (Glisson, fide E. L. Layard). 

An inconspicuous little form, like many of those described from 
Australia and New Caledonia, but sufficiently distinct. No species 
of this genus has hitherto been recorded from the New Hebrides. 

16, Palaina Frangoisi Anc. 

Testa sinistrorsa, oblique et compresse rimata, subcylindraceo- 


THE NAUTILUS. 45 


oblonga, tenuis, pallide cinereo-fulvescens, acute costulata, costulis 
filiformibus, parum nitens. Spira oblongo-attenuata, apice minuto. 
Anfractus 64 convexi, sutura impressa discreti, embryonales leyes, 
sequentes remote et argute chordato-costulati, penultimus multo 
densius costulatus, dorso subgibbosus, ultimus antice distincte planu- 
latus, infra attenuatus, ad aperturam valde ascendens, dorso laxius 
liratus. Apertura fere recta, circularis, columella intus obscure sub- 
inflata. Peristoma continuum, undique modice expansum. 

Long. 2, diam. vix 14, alt. apert. 1 mill. 

Hab. Espiritu Santo island. A single specimen found in the 
aperture of Helicina Layardi, Hartm. 

The genus has not yet been recorded from the New Hebrides. 
Some have been ascribed to ‘* Lord Howe’s island, New Hebrides,” 
but this particular island is the one lying between the coast of New 
South Wales and Norfolk island, although another islet in the New 
Hebrides bears the name of ‘‘ Lord Howe.’”’ The present species is 
allied to Palaina Montrouzieri, of New Caledonia, but of different 
sculpture. 

17. Omphalotropis conella Sykes (??) var. 

Testa minute umbilicata, conico-turbinata, solidula, castanea, haud 
nitens, costulis cuticularibus verticalibus remotis, subobliquis, atque 
lineis elevatis spiralibus parum conspicuis, infra peripheriam dis- 
tantibus et validiusculis sculpta, carina peripherica et lira circa 
umbilicum distinctis, Spira conoidea, obtusiuscula. Anfractus 6 
convexiusculi, sutura impressa, ultimus medio angulatus, infra 5 
liris spiralibus munitus. Apertura leviter obliqua, supra angulata. 
Peristoma simplex, acutum, ad columellam subsinuatam vix ex- 
pansiusculum. 

Long. 44, diam. vix 34, alt. apert. 2 mm. 

Hab. Espiritu Santo island. 

Only one specimen was obtained. This little shell is shaped like 
Sykes’ O. conella, of which it may perhaps be considered a variety 
or a fresh example; however it comes from a very distinct locality 
and it may prove to be specifically distinct. 

18. Helicina Layardi Hartm. 

Hab. Espiritu Santo. All the specimens have a reddish band. It 
is the form recorded by Mr. Mabille as H. Bairdi, and I am dis- 
posed to share Mr. Sykes’ opinion that it is simply a form of H. sub- 
laevigata Pfr. The sculpture is precisely the same, as described by 


46 THE NAUTILUS. 


Mr. E. A. Smith in his report on the Land and Freshwater Shells 
of the Challenger Expedition. 

19. Potamopyrgus brevior Anc. 

Testa parva, oblongo-attenuata, nitidula, pallide cornea, fere im- 
perforata, lineis incrementi indistinctis, indumento ferrugineo tecta. 
Spira sat producta, conoideo-attenuata, obtusula. Anfractus 5 con- 
vexiusculi, sutura impressa, ultimus oblongus, infra attenuatus. 
Apertura recta, imo basi antice leviter provecta, oblique oblongo- 
ovata, basi ad sinistram distincte prodiens, supra attenuata, margini- 
bus continuis, externo subobtusato. 

Long. 24, diam. 14, alt. apert. 1 mm. 

Hab. Vate Island (fide Layard). 

Very near to P. whiteleggei Braz., from Lord Howe’s Island, but 
with shorter spire. This is the first record of the genus in the New 
Hebrides. Only one specimen was seen. The genus is also found 
in the Viti group, and I have from them a very closely allied species. 

20. Melania setosa Swains. 

Hab. Aurora Island (Layard). 

21, Melania mauiensis Lea. 

Hab. same island (Layard). 

22. Septaria suborbicularis Sowerby. 

Mr. Layard wrote me he procured one specimen nearly 2 inches 
long. 

Hab. Aurora Island. 


A FOSSIL FORM OF OREOHELIX YAVAPAI, PILSBRY. 


BY T. D. A. COCKERELL. 


Oreohelix yavapat compactula, n. subsp. 


Shell compact ; spire elevated, pyramidal ; last whorl somewhat 
gibbous above, with a strong cord-like keel extending to the aper- 
ture; shell with coarse, oblique striz, especially prominent on the 
last two whorls above, and also with fine spiral lines, most prominent 
on the last whorl, where they are more or less beaded; sometimes the 
spiral lines are scarcely apparent, but this is probably the result of 
weathering. Five specimens, two with the spire broken; the dimen- 


sions are: 
Max. diam. 13, 124, 11, 13, 12 mm. 


THE NAUTILUS. 47 


Alt. (at right angles to axis) 83, 74, 64 mm. 

Hab.—Found in a pleistocene deposit in the Pecos Canon, New 
Mexico, a few miles above the Vallé Ranch, by my wife and Dr. M. 
Grabham, in 1903. With them occurred a form of O. strigosa, 
which seems not to differ essentially from the smaller forms of the 
huachucana group. The largest has max. diam. 174, alt. 10 mm.’ 


NOTES AND NEWS. 


REPUBLICATION OF THE MuseuM BOLTENIANUM, Part 2, 1798. 

The rarity of part 2 of this work, which relates to Mollusca, is 
well known to students. In response to a number of inquiries it is 
proposed to reproduce a few copies, by photographic facsimile, from 
the Crosse copy now in the British Museum (Natural History). 

The large number of pages (204) must render this a somewhat 
costly task, and we should be glad to know if you would care fora 
copy to be reserved for you at the price of £2 (two pounds). 

The work would be done, under our supervision, by Mr. F. W. 
Reader. 

The issue will be limited, numbered and signed, and could be 
prepared for distribution during autumn. 

It must be clearly understood that unless sufficient subscribers are 
forthcoming no issue can be made. 

Please address reply to Mr. Sykes.—E. R. Sykes, C. Davis 
SHERBORN, 


New Locarity ror LyoGyrus BROWNII CARPENTER. — 
Several years ago the lakes in Roger Williams Park, Providence, 
R. I., were drawn off, the bottoms dredged out and the contents 
thrown out upon the land. They were left empty, exposed to the 
sun for two years and all the species of mollusks destroyed. ‘There 
were fourteen species in the lakes and thousands of specimens. 
Among others were the Lyogyrus Brownti, and as they were never 
discovered anywhere else, I supposed (the locality being exhausted) 
that they were extinct. Last week a young collector here, Mr. 
Frank Perry, has found in Old Warwick Pond, about four miles 


10. y. compactula seems to me to be a form or subvariety of O. y. neomexicana, 
which occurs living in the same general region.—H. A. P. 


48 THE NAUTILUS. 


from the Park Lakes, and having no connection whatever with them, 
a new locality for the Lyogyrus, and he assures me that he found 
them there in great quantities —H. F. CARPENTER. 


PUBLICATIONS RECEIVED. 


Tue Mup Snait: Nassa opsoLteta.—By Abigail Camp Dimon. 
(Cold Spring Harbor Monographs, V, 1905.) This is a very 
exhaustive treatise on its distribution, structures and functions, 
breeding and development; experiments on its relation to external 
factors, such as light, gravity and currents: resistance to desiccation, 


and different densities of water; response to mechanical stimuli, 
food, etc.—C. W. J. 


Notes ON SOME FRESH-WATER SHELLS FROM THE YUKON 
Territory.—By J. F. Whiteaves (The Ottawa Naturalist, xix, p. 
63, 1905). Five species of Pelecypoda and ten species of Gastero- 
poda are recorded. 


List oF LAND AND FRESH-WATER SHELLS FROM THE DISTRICT 
or Kerrwatin.— By J. F. Whiteaves (Geological Survey of 
Canada, 1905). About forty species are recorded. 


A New GENUS AND SEVERAL New Species oF LAND SHELLS 
COLLECTED IN CENTRAL Mexico By Dr. Epwarp PAaLMER.— 
By William Healey Dali (Smiths. Misc. Coll., Vol. 48, pp. 187-194, 
plates 43, 44). The new genus Hendersonia, dedicated to Mr. John 
B. Henderson, Jr., is a flattened, discoidal, many-whorled snail 
somewhat hke Polygyra cereolus, with the last whorl free and up- 
turned, Anostoma fashion, and with anatomical characters showing 
it to be related to Holospira. Nothing of the sort has been known 
among Cylindrelloid snails hitherto, and the new genus materially 
enlarges our conceptions of that type of snails. A single species, H. 
palmeri, is described. Subsequently learning that the name Hender- 
sonia had been used by Wagner (in Helicinide, 1905), the new 
genus was renamed Hendersoniella. Five new species of the genera 
Xanthonyx, Streptostyla, Schasicheila and Sphezrium are described. 
The new Xanthonyx potosiana is the greatest of its kind, with a 
shell 18 mm. in diameter.—H. A. P. 


fee NAUTILUS. 


Vou. XTX. SEPTEMBER, 1905. No. 5. 


NOTES ON YOUNG UNIONIDZ. 
BY L. S. FRIERSON. 


Recently while searching for young Unionide I was rewarded by 
obtaining a dozen little fellows averaging a quarter of an inch long. 
One of these, a magnificent little Lampsilis anodontoides Lea, less than 
one-fourth of an inch in length, exhibiting the glochidial valves, was 
provided with a byssus four or five inches Jong, thus confirming my 
previous observations. Several specimens of LZ. gracilis Barnes, and 
one of ZL. levissimus Lea, were also taken so provided. The byssus 
of one of these was fully eight inches in length. Several L. texasensis 
were also taken, as already recorded by me. Several very small 
Anodonta imbecilis Say, were captured, but these did not seem to 
have byssi. Some time after, I was rewarded in an hour’s search, 
by asingle specimen of Unio tetralasmus Say, perfect in every re- 
spect, and only ,3, of aninch in length. It wasa jewel, but no sign of 
its being provided with a byssus could be detected. 

Thus these preliminary and very scanty observations seem to limit 
the possession of a byssus to Lampsilis (including in this term the 
allied genus Medionidus). 

The byssi of these specimens came out of a narrow s/it in the cen- 
tral ridge of the foot, and located about the anterior third of the shell, 
and all were firmly enough attached to support the weight of the 
shell in the air, and of course amply strong to suspend the shell 
while partially supported by the water. 

These baby shells revealed some facts about the so-called beak- 


50 THE NAUTILUS. 


sculpturing, which, when further studied, may form a subsequent 
note for THE NavriLus. 


NEW VARIETIES OF CREPIDULA RUGOSA NUTT. FOUND ON NATICA AND 
ON NORRISIA. 


BY MRS. M. BURTON WILLIAMSON. 


In the July number of Tue Navrtitus, Dr. Wm. H. Dall de- 
scribes a variety of Crepidula nivea C. B. Adams, from San Pedro, 
California, and this reminds me of a variety found upon Natica that 
has not, to my knowledge, been described. 

When I began collecting shells in San Pedro Bay some years ago, 
I found a specimen of this variety and it was for years a puzzle to 
me. Although only a dead, white shell, it would not classify with 
specimens in any tray of Crepidula. It did not look like an aber- 
rant form, so I was loth to label it as such. It was a white, porcel- 
lanous specimen, shaped like some Orepidula rugosa, but much 
more pellucid-looking, but differed from Crepidula excavata Brod., 
in being thicker and in not having either the remote apex or the 
oblique growth of that form. It was also larger in size than any 
Crepidula excavata I had seen. Some seven or eight years after 
finding this dead specimen, two live ones, excepting that the animal 
had recently been removed, were found in the bay. I immediately 
recognized the white, granular form, and these specimens were 
maculated with ch:stnut-colored spots, and as would be expected, 
these live forms were thinner and more pellucid. I afterward found 
this puzzling variety 7m situ on a piece of Natica, Lunatia Lewisii. 

If a specimen varies from the type sufficiently to be detected, 
dead or alive, it merits a varietal name, and for my own convenience 
I have labeled it on my cards. For the convenience of other 
students this white porcellanous shell with its brown spots might be 
labeled Crepidula rugosa Nutt. var. naticarum. 

There is another variety of Crepidula rugosa Nutt. found on 
Norrisia norristi Sby. This Norrista is a smooth, reddish-brown 
turban shell, whose habitat appears to be on kelp. The Crepidule 
found on these shells are of a light magenta-pink in the interior. 
These slipper shells are usually much flatter than typical OC. rugosa, 


THE NAUTILUS. al 


and the form of the septum or deck also varies. Besides variation 
in color and form the Norrisia specimens are more porcellanous 
than Crepidula rugosa (but not so much so as the form found on 
Lunatia), and the texture does not run into layers as in the typical 
C. rugosa. Some years ago this form was often distributed by col- 
lectors and labeled Orepidula aduneca Sby. In notes on the mol- 
lusks of the vicinity of San Diego, Cal., and Todos Santos Bay, 
Lower California, by Charles R. Orcutt, he lists Crepidula adunca 
Sby. as “not rare on Norrista norrisii.”” While some of the forms 
found upon Norrisia have the remote apex of C. adunca, I have 
never seen one with the ‘“‘short, deeply sunk and slanting deck, and 
a hole above it passing up the spire,” as described by Philip P. Car- 
penter in his catalogue of Mazatlan Mollusca in his note on the 
adunca form. Then again, C. adunca is found upon smaller uni- 
valves where the base for it is much contracted ; for instance, I have 
seen it 2 situ on Drillia penicillata Cpr., and as one would infer, 
the shell has its sides closer together than the form found upon 
Norrisia. For the Norrisia form I would suggest Crepidula rugosa 
Nutt., variety norrisiarum. 


A NEW SPECIES OF LYMNAEA FROM OHIO, WITH NOTES ON LYMNAEA 
PARVA LEA. 


FRANK COLLINS BAKER. 


Lymnaea sterkii n. sp. 


Shell small, elongated, turreted, rather thin; color light yellowish- 
horn; surface dull to shining, marked by distinct, raised, crowded, 
growth lines, without spiral lines; protoconch very small, rounded, 
smooth, wine-colored; whorls 54, very convex, the last distinctly 
shouldered ; spire narrow, rather acute, turreted, a trifle longer than 
the aperture ; sutures very deeply impressed ; aperture ovate, almost 
continuous in some specimens; peristome thin, acute; columella 
almost straight, without a plait but with a faint thickening; inner 
lip reflected to form a broad, flat callus which is appressed to the par- 
ietal wall and projects widely over the umbilical region; umbilicus 
rather wide and deep. 

Length 7.75; width 3.50; aperture length 3.50; width 1.75 mm. 


52 THE NAUTILUS. 


Length 7.75; width 4; aperture length 3.25; width 2 mm. 

Length 8; width 3.50; aperture length 3.50; width 2 mm. 

Length 7; width 3.50; aperture length 3.25; width 2 mm. 

Habitat : Twelve miles west of Cleveland, Ohio, ina small, swampy 
brook. 

This curious species was at first thought to be Lea’s er¢gua but his 
description does not cover the present species and the figure is totally 
unlike it. The type of exigua is not in existence. It is probably a 
small form of desidiosa and its best disposition would seem to be as 
a synonym under that species, 4 

L. sterkii is narrower than humilis, the whorls are more shouldered 
and the aperture is much more oval. The wide-spreading columella 
callus is also different and peculiar. It has a superficial resemblance 
to owascoensis Baker, but that species has six full whorls, the whorls 
are more shouldered, the aperture is more elliptical, the umbilicus is 
more open and the columella callus is not so wide. Juvenile speci- 
mens are rounder and more robust than the adult forms. 

The specimens were collected by Dr. Victor Sterki, to whom the 
species is dedicated. 


Lymnea parva Lea, Proc. Am. Phil. Soc., I, 38, 1841. 


Shell very small, thin, ovate-conic, turreted; color greenish-horn ; 
surface dull, marked by heavy, crowded growth lines; protoconch 
very small, rounded, light-horn colored; whorls 41, rounded and 
shouldered ; spire obtusely conic, turreted, a trifle longer than the 
aperture ; sutures very deeply impressed; aperture roundly ovate ; 
peristome thin, acute; columella almost straight, covered with a 
rather heavy callus which is reflected over the flat parietal wall and 
also forms an erect border to the umbilicus, which is open and deep. 

Length 3.25; width 2; aperture length 1.50; width 1 mm. 

Length 4; width 2; aperture length 2; width 1 mm. 

Length 3; width 2; aperture leneth 1.25; width .9 mm. 

Length 4.25; width 2; aperture length 1.75; width 1 mm. 

Habitat: marsh on Lake James, Steuben Co., Indiana (Daniels); 
Cincinnati, Ohio (Lea); Lilyeash Creek, Joliet, Ill. (Handwerk); 
Northern Illinois, in drift (Sterki). 

This little species, the smallest of our American Lymnzas, belongs 
to the section of this genus typified by humilis Say and curta Lea. 
It is more nearly related to curta, appearing at first sight to bea 


THE NAUTILUS. 53 


small example of that species. Besides its small size it differs from 
that species in having the sutures more impressed, the aperture 
longer, the spire slenderer and the whorls more shouldered. It 
seems to be quite distinct and easily recognized. 

There is some variation in the length of the spire, many specimens 
having arather long spire while in others the spire is much depressed 
and the whorls humped, this last being in abnormal forms. 

This species was at first thought to be a new one, but after careful 
study it seems to agree very well with Lea’s description of parva and 
with specimens so named by him in the Smithsonian Institution. In 
his remarks under parva he says, ‘‘ This is the smallest species which 
has come under my notice. In general form it resembles ZL. curta, 
herein described. It is rather less inflated, has a longer aperture, 
and is diminutive. The perforation, too, is smaller and the colu- 
mella more curved. 

In a paper entitled ‘“ Critical Notes on the Smaller Lymnzas,”’ in 
the March Nauti vs, the writer made this species a synonym of 
curta, but a study of the material from Lake James, which is unusu- 
ally abundant, would make it seem to be a well-recognized species. 
Specimens were submitted to the writer by Dr. Sterki, Mr. Bryant 
Walker and Mr. L. E. Daniels, the latter gentleman having col- 
lected them. 

Parva would seem to be a common species, and will probably be 
found in many cabinets under the all-embracing name of “ Awmilis.”’ 


VERTIGO PERRYI, N. SP. 


BY V. STERKI. 


Shell minute, dextrorse, ovate with the apex rather acute, rimate; 
thin, transparent, of rather dark brown color with a slight greenish 
tinge; whorls 44 rather rapidly increasing, separated by a moderately 
deep suture, the last comparatively large, occupying over one-half of 
altitude, rounded; with a slight impression over the palatal fold; 
aperture well rounded, truncate, the margins slightly everted, the 
outer margin barely impressed at the auricle which is marked by a 
slight angle projecting over the level of the peristome ; no callus in 
the palate; lamelle and folds three or four, small, very short, of 
brownish color; the parietal, columellar and inferior palatal, and 


54 THE NAUTILUS. 


sometimes there is also a superior palatal; surface with very fine 
irregular striz, somewhat shining. 

Size: alt. 1.5-1.6, diam. 1.1 mill., apert. alt. 0.6 mill. 

Soft parts: they could not be fully examined. The dried body of 
a specimen accidentally crushed was softened up, and showed a con- 
siderable amount of dark pigment. Jaw yellow, rather narrow 
(means really: short), slightly curved, with a shallow indentation in 
the middle of the front edge, the lateral ends produced backward, in 
curves, like horns; the surface shows several (4-5) sharp, fold-like 
ribs on either side, of unequal sizes. Radula: rather broad, with 
13 + C + 18 teeth, about seven being laterals, the outer three or 
four marginals, Nos. 8 and 9, about, marking the transition. The 
central tooth, with its plate almost square, is tricuspid, the medium 
cusp being about half the length of the plate, the outer ones much 
smaller ; the first to third, or fourth laterals are bicuspid, but many 
of the teeth show, more or less distinctly, a minute third, inter- 
mediate tooth; the fourth or fifth, to eighth, are tricuspid with the 
cusps small and the mesodont at last hardly larger; from the tenth 
on, the cusps gradually disappear. Other parts of the body were 
not clearly distinguishable or not well defined. 

Habitat : Warwick, Rhode Island, collected by Mr. J. Francis 
Perry. 

The present species resembles the low form of Vertigo ventricosa 
Mse. in the shape and size of the shell, but the formation of the 
aperture and its lamella and folds is quite different, the color is 
deeper and the surface less shining. From the other three described, 
typically three-toothed eastern vertigos : tridentata Wolf, oscartana 
Sterki and parvula Sterki, V. Perryi is also very different ; in all 
of the three, the parietal lamelle and palatal folds are much larger, 
longer, and of whitish color; the aperture is higher than wide; the 
shells are more elevated and of lighter color. 

A new Vertigo from New England certainly is a surprise, 
and it is the more remarkable for being of a type rather different 
from all our other Eastern species. No doubt careful search will 
bring it to light from other localities. I take pleasure in naming 
the species in honor of its discoverer. 


11n what appeared to be the mantle, or the pulmonary cavity, there was a 
small, evidently parasitic, worm, coiled up, the larva of a nematode, as it 
seemed, 


THE NAUTILUS. 55 


SHELL COLLECTING ON THE MOSQUITO COAST OF NICARAGUA.—IV. 


BY W. H. FLUCK. 


Strombus bituberculatus Lam. Man of War Keys. Common. 

Cyprea exanthema L. Same locality. A common shell on all 
the keys, including Great and Little Corn Island. 

Dolium perdix L. Same locality. 

Pyrula papyratia Say. Four dead shells on the beach near the 
mouth of the Wawa river. 

Polinices brunnea Link. Wounta Haulover. Abundant. 

Polinices lactea Guilding. Man of War Keys. Plentiful. 

Natica maroccana Dillw. Wounta Haulover. Abundant. 

Crepidula plana Say. Beach, north of Wawa river. One speci- 
men. 

Crepidula convera Say. Beach, Wounta Haulover. Abundant. 

Janthina sp? Although I tramped the beach nearly every even- 
ing for four years I found but two of these shells, but they were per- 
fect, living specimens. 

Vermicularia spirata Phil. Walpa Siksa. One shell. 

Litorina lineata Phil. On the rock at Walpa Siksa. Plentiful in 
the dry season when no fresh water from the river entering the sea 
near the rocks disturbs them. Shells rather small, carinate and dis- 
tinctly marked with the characteristic zigzag lines. I also have ten 
specimens from the Man of War Keys which are larger, less carinate 
and not so distinctly marked. 

Litorina columellaris D’Orb. Wounta Haulover and everywhere 
on the beach along the whole coast. Invariably attached to stranded 
logs and pieces of wreckage. It often hollows out a pocket for itself 
in the decaying wood. This is the commonest litorine on the whole 
coast of Nicaragua, 

Litorina angulifera Lam. This large and beautiful litorine is 
found along all the lagoons and rivers, hanging to mangroves be- 
neath the surface of the water or not many feet above it. Speci- 
mens from Karata and Wounta. I never found it along the sea nor 
in fresh water up the rivers. It seems to prefer the brackish water 
‘inside ” not far from the sea. Very abundant. 

Tectarius muricatus L. Man of War Keys. Plentiful. 

Cerithium literatum Born. King’s Keys. Abundant. 


56 THE NAUTILUS. 


Planazxis nucleus Wood. King’s Keys. Plentiful. 

Pachycheilus corvinus Morel. Tungla river, near Quiquina, Nic. 
A common shell in all the rivers beyond the influence of the salt 
water. Dr. Pilsbry identified this shell for me, but Mr. Ancey, who 
received some of my shells from Mr. Shackleford, of Clitheroe, Eng., 
wrote me that my shells *‘ differ from the true P. corvinus from Gua- 
temala, named by the author himself.’ It was my intention to col- 
lect more of these shells, in order to supply my friends. but when- 
ever I made preparation for a shell-collecting trip, some duty turned 
up and prevented me. At my request an Indian brought me about 
100 specimens, and at first sight of them my heart rejoiced, but when 
I discovered that he had perforated the body-whorl of each, I rejected 
them in the hope of some day having opportunity to collect for 
myself. That time never came. The Indian’s idea of shell collect- 
ing was limited to eating the inside and using the shells as beads! 
W hat an opportunity that would have been for lady shell-collectors ! 

Ampullaria reflexca Swn. Wounta. Found on the beach after 
heavy floods, just south of the river mouth at that place. Where 
they came from I do not know, presumably from “up the river.” 
One had a perfect operculum, although a dead shell. 

Nerita peleronta L. 

Nerita versicolor Lam. 

Both these forms from King’s Keys and Man of War Keys. Much 
larger and more beautiful than those I have from the West Indies. 
A common article of food among the Indians, in turtle-spearing 
season, when they spend much time on the keys. 

Nerita tessellata Gmel. Man of War Keys. Abundant. 

Nerita praecognita C. B. Ads. Same locality. One specimen. 

Nerita fulgurans Gmel. Walpa Siksa. On the rocks. Large. 
Not plentiful. 

Neritina lineata Lam. 

Neritina lineata var. reticulata C. & J. Common in Bluefields 
lagoon and in all the other lagoons and rivers as far up as the brack- 
ish water extends. The variety reticulata is by far the commoner of 
the two, only one in about forty being lineata. Reticulata averages 
larger, too. These shells are found on submerged mangrove roots 
and logs, or on the muddy bottom itself. The ‘ tingnis,”’ or chan- 
nels, peculiar to the Mosquito Coast are its favorite haunts. It 
never ventures far from the water. 


THE NAUTILUS. 57 


Neritina virginea L. On rocks and stones at the water’s edge, 
inside the harbor, near the government wharf at Bluefields Bluff. 
As I made annual trips to Bluefields from my station at Wounta 
Haulover, I searched this spot and turned over the stones in April 
of 1899, 1900 and 1901, but saw none of these shells until May 5, 
1902, when I found them in large quantities. The spot is about 200 
yards from the sea, but in the rainy season is washed with fresh 
water for weeks. Have these shells been brought to Nicaragua by 
schooners from Grand Cayman or by fruit steamers from other 
ports? The shell is small, being about the size of Neritina pupa L., 
very uniform in its dark color and modest marking. It is very un- 
like the WV. virginea I have seen from the West Indies. 

Astralium c@latum Gmel. Man of War Keys. <A very abund- 
ant shell on and about all the keys. An article of food among the 
Indians. 

Astralium americanum Gmel. Same locality. Plentiful, but not 
as numerous as caelatum. 

The Indians use the opercula of these shells for divination. By 
pouring strong banana vinegar over an operculum, the lime is eaten 
and gas liberated. This causes the operculum to “ dance” about in 
one direction or another and in that way they find out the particular 
thing they want to know. No amount of explanation was able to 
convince them of their foolishness. 

Turbo filosus Fischer. Man of War Keys. I found only two or 
three dead shells. 

(To be continued.) 


LIST OF WISCONSIN SHELLS. 


BY GEORGE HALCOTT CHADWICK. 


The following shells were collected in the summer of 1902 with 
the active assistance of the members of the Wisconsin Natural 
History Society, through whose bulletins a more complete annotated 
list will shortly be published. A thorough survey of the State is 
contemplated by the Society, for which this list will constitute a 
beginning. The specimens listed are all in the Milwaukee Public 
Museum. 


58 THE NAUTILUS. 


A. LAND SHELLS. 


Helicina occulta, Say. Whitefish Bay. 

Helix pomatia, Mill. Milwaukee, teste P. Wells. 

Vallonia pulchella, Mull. Milwaukee. Common. 

Polygyra profunda, Say. Milwaukee and vicinity; Crystal Lake. 

Polygyra albolabris, Say. Whitefish Bay; Wauwatosa. Scarce. 

Polygyra multilineata, Say. Milwaukee and vic. Scarce. 

Polygyra thyroides, Say. Milwaukee and vic. Scarce. 

Polygyra hirsuta, Say. Milwaukee ; Mishicot, Manitowoc Co. 

Polygyra monodon, Rack. Milwaukee and vicinity. 

Polygyra monodon fraterna, Say. Milwaukee and vicinity. 

Strobilops, cf. virgo, Pils. Milwaukee and vic.; Mishicot. 

Pupoides marginatus, Say. Kenosha. 

Bifidaria armifera, Say. Vicinity of Milwaukee. 

Bifidaria contracta, Say. Vicinity of Milwaukee. 

Bifidaria corticaria, Say. Wauwatosa. 

Bifidaria curvidens, Sterki. Wauwatosa. 

Bifidaria pentodon, Say. Vicinity of Milwaukee. 

Vertigo milium, Gould. Near Milwaukee. 

Vertigo ovata, Say. Near Milwaukee. 

Cochlicopa lubrica, Mull. Vicinity of Milwaukee. 

Vitrina limpida, Gould. Milwaukee. Rare. 

Vitrea cellaria, Mill. Greenhouse, Milwaukee. 

Vitrea draparnaldi, Beck. Greenhouses. Common. 

Vitrea hammonis, Strom. Vicinity of Milwaukee. 

Vitrea indentata, Say. Vicinity of Milwaukee. 

Euconulus fulvus, Mull. 1 specimen. 

Zonitoides nitidus, Mill. Milwaukee. Common. 

Zonitoides arboreus, Say. Vicinity of Milwaukee; Mishicot. 

Zonitoides minusculus, Binn. Vicinity of Milwaukee. 

Limax maximus, Linn. Greenhouses, Milwaukee. 

Limaz flavus, Linn. Greenhouses, Milwaukee. 

Agriolimax agrestis, Linn. Abundant about Milwaukee. 

Agriolimax campestris, Binn. Milwaukee and vic. 

Philomycus dorsalis, Binn. Whitefish Bay. 

Pyramidulu alternata, Say. Very common about Milwaukee ; 
Mishicot. 

Pyramidula perspectiva, Say. Whitefish Bay. 1 shell. 

Pyramidula striatella, Anth. Milwaukee and vic. Common. 


THE NAUTILUS. 59 


Pyramidula striatella catskillensis, Pils. Wauwatosa; Mishicot. 
Helicodiscus lineatus, Say. Vicinity of Milwaukee. 

Punctum pygmaeum, Drap.? Whitefish Bay. 

Succinea retusa, Lea. Vicinity of Milwaukee. 

Succinea ovalis, Say. Vicinity of Milwaukee. Abundant. 
Succinea ovalis, cf. totteniana, Lea. Vic. of Milwaukee. 
Succinea avara, Say. Vicinity of Milwaukee. 


B. UNIONID&. 

Lampsilis ventricosus, Barnes. Milwaukee River; Clear Water 
Lake, Oneida Co.; Lake Winnebago. 

Lampsilis luteolus, Lam, Milwaukee River; Okauchee Lake, 
Golden Lake and Fox River, Waukesha Co.; Clear Water Lake, 
Oneida Co.; Boom, Winnebago Co.; Two Rivers, Manitowoc Co.; 
Lake Winnebago;? ancient shell heaps at Winneconne, Winne- 
bago Co. 

Lampsilis superiorensis, Marsh. ? Two Rivers, Manitowoc Co. 

Lampsilis ligamentinus, Lam. Milwaukee River; Fox River, 
Waukesha Co.; Clear Water Lake, Oneida Co.; ? Winnebago Lake 
at Menasha. 

Lampsilis rectus, Lam. Fox River, near Big Bend, Waukesha 
Co. (pathologic). 

Lampsilis tris, Lea. Milwaukee River at Milwaukee. 

Lampsilis ellipsiformis, Conrad. Milwaukee River; Fox River, 
Waukesha Co.; Hika, Manitowoc Co. 

Lampsilis aiatus, Say. Lake Winnebago at Menasha; Two 
Rivers, Manitowoc Co. 

Lampsilis gracilis, Barnes. Fox River and Lake Winnebago at 
Menasha; Boom, Winnebago Co. 

Plagiola donaciformis, Lea. Kinnikinnick River, Milwaukee. 

Strophitus edentulus, Say. Milwaukee and Kinnikinnick Rivers; 
Hika, Manitowoc Co. 

Anodonta cataracta,? Say. Maple Lake, Oneida Co.; Golden 
Lake, Waukesha Co. 

Anodonta imbecilis, Say. North shore of Lake Winnebago (juv.). 

Anodonta grandis, Say. Milwaukee River; Wauwatosa; Fox 
River, Okauchee Lake and Golden Lake, Waukesha Co.; Two 
Rivers, Manitowoc Co.; Winnebago Lake at Menasha; Maple Lake, 
Oneida Co. 


60 THE NAUTILUS. 


Anodontoides ferussacianus, Lea. Milwaukee and Root rivers, 
Milwaukee Co.; Jambo Creek, Manitowoc Co. 

Symphynota compressa, Lea. Jambo Creek, Manitowoc Co. 

Symphynota costata, Raf. Milwaukee River. 

Symphynota complanata, Barnes. Milwaukee River; Two Rivers, 
Manitowoc Co. 

Alasmidonta calceola, Lea. Lake Michigan, Milwaukee ; Jambo 
Creek, Manitowoe Co. * 

Alasmidonta marginata, Say (truncata, B. H. Wr.). Milwaukee 
River. 

Unio gibbosus, Barnes. Milwaukee River; Fox River, Waukesha 
Co.; Two Rivers and Hika, Manitowoe Co.; Lake Winnebago; 
ancient shell heaps at Winneconne, Winnebago Co. 

Quadrula undulata, Barnes. Fox River, Waukesha Co.; Two 
Rivers, Manitowoc Co.; Clear Water Lake Creek, Oneida Co.; 
ancient shell heaps, Winneconne, Winnebago Co. 

Quadrula pustulosa, Lea. Ancient shell heaps at Winneconne. 

Quadrula rubiginosa, Lea. Milwaukee River; Two Rivers, 
Manitowoc Co.; Clear Water Lake Creek, Oneida Co. 

Quadrula trigona, Lea? Milwaukee River at Lindwurm. 

A list of the Limneide, Spheriide and other fresh-water shells 
will be given in a future number. 


PUBLICATIONS RECEIVED. 


DESCRIPTIONS OF INDIAN AND BuRMESE LAND SHELLS re- 
ferred to the genera Macrochlamys, Bensonia Taphrospira (gen. 
nov.), Microcystina, Euplecta, and Polita. By W.T. Blanford 
(Proc. ZoGl. Soc., Lond., 1904, pub. Apr. 18, 1905). Eighteen 
new species are described, and the new genus Taphrospira is erected 
for Macrochlamys-like snails with a trench or gutter bordering the 
suture outwardly. Four species are referred to this group: T. 
convallata Bens., T. bathycharax ‘ Bens.’ Fult., T. compluvialis BIf, 
and 7. excavata n. sp., the last two being figured. This is an un- 
usually well-marked group for the Zonitide, quite deserving recog- 
nition in nomenclature, though differing from Macrochlamys only in 
the sutural gutter. ‘The soft anatomy is unknown. To the above 
list should be added Macrochlamys diadema Dall, described in a for- 
mer number of this journal.—H. A. P. 


\\ 


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ae 
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4 

ee 

a 


THE NAUTILUS, XIX. 


PLATE II, 


STEGODERA, MOELLENDORFFIA AND GONIOBASIS, 


mae NAUTILUS. 


Vou. XIX. OCTOBER, 1905. No. 6. 


DESCRIPTION OF A NEW SPECIES OF GONIOBASIS, FROM BRITISH 
COLUMBIA. 


BY J. F. WHITEAVES. 


Gontobasis Columbiensis sp. nov. Plate 2, figs. 11, 12. 

Shell small (for the genus), apparently not exceeding fifteen mil- 
limetres in length, elongate conical and about twice as long as wide, 
spire rather short, a little shorter than the outer whorl, as viewed 
dorsally. Whorls actually five or six, but probably seven when per- 
fect, the apex being always eroded; those of the spire obliquely 
compressed, the later ones thereof encircled with one to three very 
small spiral ridges or keels in some immature specimens, but smooth 
in full-grown ones. Outer whorl moderately convex, faintly and 
spirally angulate at the midlength in the immature stage but rounded 
in the adult, its lower or anterior portion always narrowing rather 
abruptly ; sutural line impressed. Aperture subovate, longer than 
wide, acutely pointed posteriorly, produced and somewhat effuse but 
narrowly rounded in front, almost equal to the spire in length ; outer 
lip thin and simple. 

Surface of full-grown specimens almost smooth, and marked only 
with very numerous and closely disposed striae that are parallel with 
the outer lip and so minute as not to be visible without the aid of a 
lens ; also with one or two distant lines of growth that mark the 
position of previous lips. 

Epidermis uniformly brownish or greenish-brown, without darker 
bands ; aperture and inner surface of the last volution a lustrous 


62 THE NAUTILUS. 


polished white, or with a very small, pale-purplish spot or stain on 
the columella posteriorly. 

Operculum and animal not preserved. 

Headwaters of the Columbia River, at Upper Columbia Lake, in 
the East Kootenay District of British Columbia, J. B. Tyrrell, 
1883: thirty-séven fresh and living specimens, all of which are in 
the Museum of the Geological Survey of Canada at Ottawa. 

This species seems to differ from the eastern G. hvescens in its 
much smaller size, fewer whorls, and proportionately shorter spire ; 
also in the color of its epidermis and aperture. It is believed to be 
the first non-plicate Gonzobasis, of the type of G. livescens, that has 
been found in the Pacific drainage system. 

Ottawa, August 15, 19065. 


NOTES ON THE SEMI-FOSSIL SHELLS OF POSEY COUNTY, INDIANA. . 


BY L. E. DANIELS. 


Ages ago the Wabash River, which forms the western boundary 
of Posey County, Indiana—the extreme southwestern county of the 
State—was much wider than now, as indicated by the range of bluffs 
which border and run parallel with the bottom-lands of the present 
river, which, in some places are six miles in width. These bluffs or 
hills are in most cases one hundred or more feet above the level of 
the bottom-land, and many of them contain deposits of marl from 
one to twenty feet in depth. 

During the summers of 1901-4, while working for the Indiana 
State Geological Survey, I had an opportunity of examining several 
of the deposits, particularly at New Harmony and Grand Chain, 
Posey County, and collected from them several species of recent 
shells in a fossil state. The marl is usually covered with two or 
more feet of soil; and the shells occur from six to fifteen feet below 
the surface, being the more plentiful from the middle to the bottom 
of the marl deposit. 

Polygyra monodon (Rack.)—the shell formerly called leat Ward— 
is abundant, but I have been unable to find a single living specimen 
here, and nowhere else in the State except on the marshes bordering 
several of the lakes in the northern part of the State, where it is 


| THESNAUTILUS. 63 


plentiful. It seems strange that a species once so abundant here 
should have entirely disappeared. 

Following is a list of the species I have taken from the marl beds 
at New Harmony and Grand Chain: 

Helicina occulta Say. Abundant. 

Vallonia pulchella (Miull.). 

Polygyra multilineata (Say). 

Polygyra hirsuta (Say). Abundant. 

Polygyra monodon (Rack.). Abundant. 

Polygyra monodon fraterna (Say). Abundant. 

Strobilops labyrinthicus (Say). 

Strobilops affinis Pils. 

Pupoides marginatus (Say). Common. 

Bifidaria armifera Say. 

Bifidaria contracta Say. 

Circinaria concava (Say). 

Omphalina inornata (Say). 

Vitrea hammonis (Strom.). 

Vitrea wheatleyi (Bland). 

Euconulus fulvus (Miill.). 

Zonitoides nitidus (Mill.). 

Zonitoides arboreus (Say). 

Gastrodonta ligera (Say). 

Pyramidula alternata (Say). 

Pyramidula perspectiva (Say). 

Pyramidula striatella ( Anth.). 

Helicodiscus lineatus (Say). 

Succinea retusa Lea. 

Succinea avara Say. 

Pomatiopsis lapidaria Say. Abundant. 


NOTES ON MOELLENDORFFIA AND STEGODERA. 


BY HENRY A. PILSBRY. 


In southeastern China, Tonquin and the neighboring region, there 
is a group of curious Helices with reflexed lip, toothed aperture or 
plicate throat, and granose, often hairy surface. The systematic re- 


04 THE NAUTILUS. 


lations of these snails are still uncertain. No member of the series 
has been dissected. 

One of the first forms described was Stegodera angusticollis Mar- 
tens (pl. 2, fig. 1, 2, 3), a sinistral snail from the Yangtse valley, 
with the last whorl distorted, making the throat very narrow. It 
has not before been noticed that there is a weak and shallow groove 
on the upper part of the last whorl (indicated in fig, 1), and another 
one, very weak and shallow, on the base. These vestigeal furrows, 
which would scarcely be noticed, evidently represent structures far 
better developed in the following species. 

Helix triscalpta Martens, type of Ancey’s group 7raumatophora, 
is shaped like Stegodera, but has a regular coil, and is dextral. 
There are three furrows in the latter part of the last whorl, marked 
inside by irregular lamellae. The texture and granose sculpture are 
like Stegodera. 

Helix horrida Pfr. and its allies are quite different. The spire is 
sunken, as in ChAloritis, the peristome continued in a cord across the 
parietal wall, and the last whorl has two deep furrows, one basal, 
the other above the periphery. This and all the preceding have the 
apical whorl smooth and glossy. (See pl. 2, figs. 4-6.) 

Another series has the apical whorl granulated. ‘There are two 
or three furrows outside, with corresponding prominences within. 
Helix trisinuata type of Moellendorffia Ancey, is typical of this group 
(pl. 2, figs. 7, 8). 

The absence of any internal lamelle or barriers on the parietal 
wall differentiate all of the above from Plectopylis and Corilla, while 
the granose surface, external furrows, etc., indicate that the various 
members are related to one another. The tendency to have two ex- 
ternal pits or furrows in definite positions shows a great likeness to 
certain forms of Chloritis, and the very closely related group Plan- 
tsptra, such as C. bifoveata Bs., P. endoptycha Mts., porcellana Grat., 
infracta Marts., etc.’ The correspondence is so close that I have 
now little doubt that this Chinese series of Helices is closely related 
to the genus Chloritis, though the full demonstration awaits an ex- 
amination of the soft anatomy. Pending this, I would suggest the 
following classification of the species: 


1Mr. Sykes has proposed a section Vulnus for these pitted Planispiras.—J. of 
Malak., 1904, p, 88. 


THE NAUTILUS. 65 


I. Peristome continuous, free, or continued as a thick cord across 
the parietal wall; aperture subtriangular, squarish or subcircu- 
lar, the throat with two or three plice. 

Genus MorLLenporrria Anc. 
1. Apical whorl granulated; parietal callus free and erect or 
shortly adnate. 

a. Spire convex or low-conic ; surface coarsely warty ; peri- 
phery angular or rounded, both sulci below it; peristome 
continuous, the parietal callus free and erect, bearing a 
rounded tooth. There is often a small sulcus above the 
principal outer one. 

Subgenus Moellendorffia s. str., Anc. 

a’. Spire flat, the periphery carinate, two sulci, one subperi- 
pheral, the other basal below it. Aperture subcircular, 
the adnate parietal callus very short, not toothed. 

Subgenus Moellendorffiella Pils. 

2. Apical whorl smooth ; parietal callus adnate, thickened at the 
edge ; spire more or less concave; aperture heart-shaped, 
subtriangular or squarish ; edge of the parietal callus thick- 
ened, cord-like. Surface minutely granose between larger 
warts which sometimes bear hairs. ‘Typically with a basal 

and a superperipheral furrow behind the aperture, with cor- 
responding prominences inside, but these may be reduced to 
indistinct vestiges. Subgenus Trihelix Anc. 

II. Peristome widely interrupted, the parietal callus thin through- 

out; aperture rounded-lunate ; periphery rounded and spire 

convex in known forms; apical whorl smooth. 
a. Sinistral, last whorl distorted ; external sulci vestigeal; no 
internal lamelle. Genus STEGODERA Martens. 
a’. Dextral, regular; three external sulci and internal plice. 
Subgenus Traumatophora Ane. 
The species now known are as follows : 
Moellendorffia eastlakeana (Mlldff.), China. 
Moellendorffia hensaniensis (Gredl.), China, 
Moellendorffia trisinuata (Marts.), China. 
Moellendorffia trisinuata sculptilis (Mlldff.), China. (PI. 2, figs. 

7, 8.) 

Moellendorffia loxotata (Mab.). ‘Tonquin. 
Moellendorffia spurea (Bay. & Dautz.). Indo-China. 


66 THE NAUTILUS. 


Moellendorffia spurca deflexa (Mlldff.). Indo-China. 

Moellendorffia messageri (Bav. & Dautz.).  * 

Moellendorffia callitricha (Bav. & Dautz.). “ 

Moellendorffia (Moellendorffiella) erdmanni (S. & B.), China. 
(Pl. 2, figs. 9, 10.) 

Moellendorffia (Trihelix) horrida (Pfr.). Cambodia. 

Moellendorffia (Tribelix) biscalpta (Hde.), China. 

Moellendorffia (Trihelix) faberiana (Mlldff.), China. 

Moellendorffia (Trihelix) hiraseana Pils., Formosa. (Pl. 2, 
figs. 4, 5, 6.) 

Moellendorffia (Trihelix) eucharistus (Pils.), Ryukyu Is. 

Moellendorffia (Trihelix) eucharistus tokunoensis Pils. & ‘Hir. 

Moellendorffia (Trihelix) eucharistus diminuta Pils. & Hir. 

Stegodera angusticollis (Marts.), China. (PI. 2, figs. 1, 2, 3.) 

Stegodera (Traumatophora) triscalpta (Marts.), China. 


Moellendorffia (Trihelix) hiraseana n. sp. Plate 2, figs. 4, 5, 6. 

Shell planorboid, umbilicate, the umbilicus about one-fifth the diam- 
eter of the shell, thin but moderately strong, brown (the exact color 
not known, as the specimens found are dead). Sculpture of very 
distinct minute granules, close but not regularly arranged, and on the 
last whorl and a half, comparatively large oblong low tubercles, 
rather widely spaced, and standing in somewhat irregular oblique 
rows. Spire slightly sunken in the middle. Whorls 43, convex, 
the last more than twice the width of the preceding, convex above 
and below, rounded peripherally, having a deep obliquely ascending 
sulcus above the periphery on its last fourth, shallower as it ap- 
proaches the lip, and another on the base, tangentially passing out 
from the umbilicus. Aperture very oblique, heart-shaped, obstructed 
within by two strong plice representing the external furrows, the 
basal plica standing transversely, the peripheral one entering. 
Peristome well reflexed, whitish, the margins connected by a raised 
callous parietal cord; upper lip arcuate and tapering near the upper 
insertion, then straightened and sloping, with a very slight prom- 
inence within where the sulcus terminates; basal lip but slightly 
arcuate. 

Alt. 7.7, diam. 18 mm.; length from lip-edge to rear end of upper 
sulcus 9 mm. 

Hotawa, Taiwan [Formosa]. Type no. 89999, A. N.S. P., from 
no. 1406 of Mr. Hirase’s collection. 


THE NAUTILUS. 67 


Two specimens of this fine species were obtained. It is closely 
related to biscalpta (Heude) and faberiana (Mildff.) of China. The 
former is a somewhat larger shell, in which the supraperipheral sulcus 
terminates at the lip in a downward projecting prominence, causing 
the upper margin of the lip to appear composed of two small arches, 
a structure not seen in WM. hirasei. The spire in M. biscalpta is de- 
cidedly wider than in the Formosan shell. M. faberiana (Mlldff.) 
has not been figured. It is the size of M. hirasez, but differs by the 
shape of the last whorl, which is flat, obtusely angulated above, and 
obtusely angular around the umbilicus, by the absence of a parietal 
callus, sinuous outer lip, ete. It also seems to differ in sculpture and 
various other features. JM. hiraseana probably will be found to 
bear hairs on the larger warts when in fresh condition. 


A NEW SUBSPECIES OF POLYGYRA FERRISSI. 


BY JAMES H. FERRISS. 


Happening to look over my cabinet series of P. ferrisst by day- 
light, I noticed that some shells from Balsam Mountain, Swain Co., 
N. C., differed from ferriss? in several points, especially the minute 
sculpture, and I believe them to be a new subspecies. 


Polygyra ferrissi sericea n. subsp. 

The shell has 54 to 5} whorls, the inner ones but slightly paler 
than the outer, with but the slightest trace of punctation. The last 
whorl has perceptibly closer striation than P. ferriss7, is less glossy, 
and is covered with a weak, very minute granulation in the inter- 
stices between striz; there is also a slight, fine malleation or inden- 
tation ; the general effect being that of a dull silk. The color is 
rich reddish brown, with a slight olive tint. The lip is broad and 
flat, a little turned back. The outer edge is dark, the inner rim 
white. There is a very small parietal denticle, smaller than in P. 
Fferrissit, Alt. 12.7 to 13, diam. 23 mm. 

Balsam Mountain, Swain County, N. C. 


68 THE NAUTILUS. 
THE SNAILS OF NEW MEXICO AND ARIZONA. 
T. D. A. COCKERELL. 


MOo.Luivsca OF THE SOUTHWESTERN STATES. 1. UROCOPTID 2; 
HELicip# or ARIZONA AND New Mexico. By H. A. Pizssry. 
(Proce. Acad. Nat. Sci., Phila., March, 1905.) 

Several years ago I was walking at night in the streets of Albu- 
querque, N. M., looking for a building where a certain meeting was 
to be held. Accosting the first person I met, I asked the way. The 
stranger at once said that he was going to the same meeting, and we 
walked together. I do not know how it was, but through some 
inevitable necessity, the conversation soon led up to snails. My 
companion was from the Pacific coast; his name was Ashmun; he 
was interested in snails; did I suppose he could find any in New 
Mexico? Thus I had run across the only person in New Mexico, 
except myself, who cared anything about the mollusca. The infor- 
mation I gave him was not particularly encouraging ; he was not 
likely to find much, but there were some little Pupide and other 
miscellanea in the debris on the banks of the Rio Grande. 

The next time I met Mr. Ashmun was in the train between Las 
Cruces and Albuquerque. His first remark was, “I have found 
three new Polygyras!”’ I well remember my almost incredulous 
astonishment; I thought I knew there were no such things in that 
region; for even the Santa Fé Cafion records had become semi- 
mythical in the absence of recent confirmation. 

Thus the corner of the veil was lifted; but how little we then 
realized that Arizona and New Mexico contained a whole new snail- 
fauna, including new genera of many species, large and varied in 
form! Fifteen years ago, the man who should have predicted the 
discovery of a very distinct genus of comparative large snails, with 
26 different species and subspecies, within the borders of New Mexico 
and Arizona, would have been considered a veritable Munchausen ; 
to-day we are prepared for almost anything, and humbly confess that 
we scarcely begin to know the fauna of the Southwest. 

Astonishing as Mr. Ashmun’s discoveries were, it remained for 
Mr. J. H. Ferriss to reveal even more wonderful forms. In 1902 
and again in 1904, he visited the Chiricahua and Huachuca moun- 
tains in southern Arizona. ‘The results of these journeys, together 
with the accumulated fruits of other investigations, are presented by 


THE NAUTILUS. 69 


Dr. Pilsbry in the paper before us, so far as they relate to the 
Urocoptidz and Helicidz. A second paper, on the small species, is 
to appear later. 

The paper is full of detail and profusely illustrated, so that it 
practically covers the ground, so far as present knowledge will per- 
mit. It has the lucidity and precision which we have learned to ex- 
pect in Dr. Pilsbry’s writings, presenting the facts in such a manner 
that the reader can judge for himself, whether he will agree with the 
conclusions reached or not. 

In the Urocoptide, the genera Holospira and Microceramus are 
described. The latter includes MW. texanus (Pils.), of Texas, but 
does not enter New Mexico or Arizona. Holospira has a species 
confined to Texas, one common to Texas and adjacent New Mexico, 
five apparently peculiar to New Mexico, and four only known from 
Arizona. They seem to be often confined to a single range, two 
species being sometimes found living together. Four new ones are 
described : H. ferrisst from the Huachuca Mts., H. czonella from 
Fort Bowie, Ariz., H. regis Pils. and Ckll., from near Kingston, 
N. M., and #. chiricahuana from the Chiricahua Mts. 

The Helicide of Arizona and New Mexico include five genera: 
Ashmunella, Sonorella, Oreohelix, Polygyra and Thysanophora. The 
last is to be treated later on, and Polygyra is dismissed with the re- 
mark that it just enters New Mexico, one species—P. terasiana— 
having been found in the Pecos Valley. It is worth while to note 
here that these Polygyras were collected by Professor Tinsley, who 
subsequently took me to the locality where they occur. They exist 
exclusively, so far as I could learn, in a bed of white marl close to 
the Pecos river, and they are to be regarded as pleistocene fossils. 
It is quite probable that Polygyra has been long extinct in New 
Mexico ; but if it still survives there the fact remains to be discovered. 
The fossil shell is probably worthy of a subspecific name, as it is not 
typical texrasiana. 

Incidentally, one may be excused for remarking that the pleisto- 
cene beds of the southwest urgently need investigation. They are 
abundant in New Mexico, at least, and there is no doubt that they 
will throw much light on the past history of the snails of that region. 
Unfortunately, it is usually impossible to form any good estimate of 
their age, for shells are well preserved in the dry soil, and speci- 
mens ten thousand years old may not look materially different from 


70 THE NAUTILUS. 


weathered shells which flourished ten years ago. When mammalian 
remains can be found with the shells, of course they afford valuable 
clues. 

The account of Ashmunella begins with an interesting general dis- 
cussion occupying four pages, in the course of which it is argued, ap- 
parently on valid grounds, that the ancestor of all the forms had a 
tridentate aperture. It is to be noted that this is the case with A. 
thomsoniana pecosensis, the most ancient form yet known. The 
toothless forms have arisen independently in several localities, and 
have come to resemble each other so much that they are only sepa- 
rated readily by those intimately acquainted with the genus, or in 
some cases by the aid of the anatomy. In this connection I may 
note that I once found at Pecos, N. M., a toothless shell which was 
plainly an individual variation of the thomsoniana series ; but anyone 
could have taken it for A. ashmuni. Recalling this specimen, and 
more particularly on geographical grounds, I will venture to prophesy 
that when the anatomy of A. ashmuni becomes known, it will be 
seen to be related to the thomsoniana series, rather than to the rhyssa 
series, where Dr. Pilsbry provisionally places it. 

The classification of the Ashmunellas is as follows : 

(1.) Group or A. Ruyssa. A. rhyssa; rhyssa miorhyssa; r. 
hyporhyssa; r. townsendi ; altissima ; pseudodonta ; p. capitanensis ; 
ashmuni; a. robusta (new name = the so-called chiricahuana of the 
Jemez Mts.). 

(2.) Group or A. THOMSONIANA. A. thomsoniana; t. porter@ ; 
t. pecosensis—the last a fossil. 

(3.) Group or A. LEVETTEI. A. levetted; Ll. angigyra (new); 
l. heterodonta (new; extraordinarily variable); /. proxima (new); fis- 
sidens (new); duplicidens (new); angulata (new); ferrissi (new, most 
extraordinary, acutely carinate, with the keel continued up the spire, 
projecting above the sutures); walkert ; mearnsi. 

(4.) Group or A. EsuRITOR. A. eswritor (new; aperture tooth- 
less, anatomy peculiar). 

(5.) Grour or A. cHiRIcAHUANA. A. chiricahuana; e, mogol- 
lonensis (new). 

(6.) Group or A. METAMORPHOSA. A. metamorphosa (new ; 
shell like chtricahuana, anatomy quite different.) 

The account of Sonorella is not so exhaustive, because the genus 
has so recently been treated in detail by Mr. Bartsch. The follow- 


THE NAUTILUS. y A 


ing are proposed as new: S, hachitana bowiensis, S. granulatissima 
parva, S. g. latior, S. virilis (looks like a variety of hachitana, but 
anatomy peculiar), S. v. e¢rcumstriata, S. v. huachucana. 

Oreohelix is carefully defined, but only the species of Arizona and 
New Mexico are treated, and not even all of those. The very var- 
iable series grouped under O. strigosa huachucana is fully described 
and illustrated. The new forms are O. strigosa socorroensis (allied 
to metcalfei), O. barbata (very remarkable, the adult with an epi- 
dermal fringe), O. yavapai, O. y. neomexicana (this species and sub- 
species separated mainly on the anatomy ; the neomexicana has been 
reported heretofore as hemphilli, which it much resembles), and O. 
chiricahuana. The last, along with O. clappi Ferriss and O. aval- 
onensits Hemphill, goes in a new subgenus, named Radiocentrum, 
distinct by the smaller number and the sculpture of the embryonic 
whorls, and the somewhat modified genitalia. 

I wish to call attention to a few apparent peculiarities of distribu- 
tion, which should be confirmed or disproved by future observers : 

(1.) On the east side of the Rio Grande, Oreohelix appears to get 
no further south than the Sandia Mountains. It is totally unknown 
in the Organs, Sierra Blanca, ete. On the west side of the river it 
goes nearly to the Mexican boundary, at least. 

(2.) Sonorella gets as far east as the Organ Mts., but I have not 
seen it from Sierra Blanca or the Sacramentos; nor does it seem to 
range northward even as far as the Sandias. 

(3.) The Organ Mts. mark the eastern limit of the devetted group 
of Ashmunella, the species found there being mearnst. One has only 
to cross the valley to the Sacramentos to meet with the very different 
rhyssa series. 


PUBLICATIONS RECEIVED. 


Antarctic Nudibranchs.—Sir Charles Eliot has just published in 
the Transactions of the Royal Society of Edinburgh a very inter- 
esting paper on the Nudibranchiata of the Scottish National Ant- 
arctic Expedition. In the preface he remarks on the absence or 
extreme rarity of Dorids in the Antarctic, while in the tropics Dorids 
are greatly more abundant than Aeolids. This seems the more 
singular from the fact that the Dorids are tough and well-protected 
animals for the most part, while the Aeolids would seem too delicate 
for the stormy and cold seas (often below 30° Fahr.) of the extreme 


rf THE NAUTILUS. 


south. Possibly the prevalence of other forms of life, including 
enemies of Nudibranchs, in the tropics may have something to do 
with it, especially since so many tropical Dorids ( Chromodoris) show 
what seem to be warning colors, and are probably inedible. 

The species obtained by the expedition in the southern seas were 
only five in number, and two of these were not in the Antarctic. 
Nevertheless all these except one proved new, and two are made the 
types of new genera. The first of these genera, Motaeolidia, is based 
on an animal nearly five inches long, obtained at the South Orkneys. 
This is so distinct that Sir C. Eliot believes it to represent a new 
family, standing between the Aeolidids proper and the Dendronotines. 
This would be a family in the sense of Bergh; a subfamily of Alder 
and Hancock. The Notaeolidiide (or Notaeolidine) are defined 
thus to include a single genus and these species: 

“‘ Large animals of Aeolidiform appearance. Oral tentacles large 
rhinophores perfoliate without sheaths. Foot rounded and grooved 
in front. Dorsal margin undulated, and bearing one or more rows 
of close-set cerata. Jaws not denticulate. Radula consisting of a 
central tooth and four (rarely five) laterals on each side. Central 
tooth with a strong median cusp and side denticles; laterals denticu- 
late on inner side. The liver forms a lobed, flocculent mass within 
the body cavity, and in the body walls a thick, spongy layer, from 
which rise the diverticula which enter the cerata. The hermaphro- 
dite gland lies above the liver.” 

The other new genus is 7ritontopsis, based on a species (7. brucet) 
from Gough Island, 40° 20’ S._ It differs from Zriton¢a principally 
in the dentition, the central tooth being narrow and pointed, not 
broad, and provided with accessory cusps. The outer laterals are 
much elongated.—T. D. A. C. 


An ARRANGEMENT OF THE AMERICAN CYCLOSTOMATID WITH 
A REVISION OF THE NOMENCLATURE. By Wm. H. Dall. (Proce. 
Mal. Soc., London, vi, 208.) A new subgenus (Parachondria) of 
the genus Chondropoma is proposed, type, C. fascia Wood, Jamaica. 
Also a new genus Opisthosiphon, type, Chondropoma bahamense 
Shutt. 

A new Chiton from the New England coast, by Wm. H. Dall. 
(Proc. Biol. Soc., Washington, xviii, 203.) 

This new species, Tonicella blaneyi, was dredged by Mr. Dwight 
Blaney in 20 fathoms, off Ironbound Island, Frenchman’s Bay, 
Maine. Including the deep-sea species, this makes twelve species 
of Chitons recorded on and off the New England coast.—C. W. J. 


eae NAUTILUS. 


Vou. XIX. NOVEMBER, 1905. No. 7. 


DESCRIPTIONS OF TWO NEW FORMS OF POLYGYRA. 


BY GEO. H. CLAPP. 


Polygyra smithii n. sp. Plate III, figs. 1-4." 

Shell imperforate, depressed, thin, horn-color, densely covered with 
elevated epidermal processes, giving the shell a scaly appearance, the 
hairs following the weak growth lines; embryonic whorls sculptured 
with: elongate granules; spire low, convex, rounded, sutures well 
impressed, whorls about 54; body-whorl obtusely carinated above the 
periphery in its first third; rounded, swollen and very deeply constricted 
back of the peristome, sharply descending in front ; upper half of the 
aperture, viewed from the under side, forming a half circle; below 
the periphery almost straight, so that the whole effect is like a human 
ear; lip wide, white, concave above and flat below, at the periphery 
a wide, flat entering tooth, basal lip straight, slightly thickened on 
the upper margin; parietal wall bearing a large, high, very slightly 
curved tooth extending from the lip-tooth to the axis, a thin wash of 
whitish callus connecting the upper and lower ends of the lip, 

Gr. diam. 164, lesser 14, alt. 10 mm. 

Gr. diam. 154, lesser 134, alt. 9 mm. 

Gr. diam. 15, lesser 13, alt. 84 mm. 

Gr. diam. 144, lesser 124, alt. 81 mm. 

Gr. diam. 134, lesser 113, alt. 74 mm. 

The first and last measurements given are the extremes of a con- 
siderable series, the average size being about 15 mm. 

Near the top of Monte Sano, at an altitude of about 1,600 feet, 
about 5 miles east of Huntsville, Ala., under large logs, piles of 
stones, etc. 


1 This plate will appear in a future number. 


74 THE NAUTILUS. 


‘Almost always it is on the ground or on the lower surface of a 
stone which rests on the ground. I have never seen the snail crawl- 
ing abroad, even in wet weather. The shells are invariably covered 
with a dark deposit, which is removed with some difficulty.” (H. H. 8.) 

Also found, but more rarely, on Smithers Mountain and near 
Gurley and Princeton. 

Animals almost black, very shy in confinement, spending most of 
their time either half or completely buried in the earth. 

This most interesting and strongly-marked species is another of 
Herbert H. Smith’s finds, and I take great pleasure in naming it 
after him. While bearing a striking resemblance to an overgrown 
P. inflecta, it is readily separated by the character of the hairs and 
the absence of the basal lip-tooth; it is also close to P. subpalliata, 
but is apparently most closely related to P. inflecta. 

Monte Sano is an outlier of the Cumberland Plateau, so that this 
may be considered a species of that most interesting faunal region. 

Types No. 5388 of my collection and co-types in the collections of 
the Academy of Natural Sciences, Bryant Walker and T. H. Aldrich. 


Polygyra inflecta approximans n. subsp. Plate ITI, fig. 6. 


Differs from typical dnflecta in the closely approximated lip teeth, 
the space between them measuring only about $ mm. in width, while 
in the typical form it measures 1 mm. and over. The aperture is 
also wider, in proportion to its length, and less rounded in front; 
body-whorl narrower at the aperture, not swollen back of the lip. 
In other characters like the type—whorls about 44. 

A considerable proportion of the shells have the umbilicus partly 
open, and while this can hardly be considered a specific character 
the proportion is greater than in any lot of cnflecta I have seen. 

Greater diam. 74, lesser 64, alt. 44 mm. 

Greater diam, 8, lesser 7, alt. 5 mm. 

Greater diam. 84, lesser 74, alt. 42 mm. 

Greater diam. 83, lesser 732, alt. 5 mm. 

Marion, Ala., where it practically replaces the typical form as 
only four dead shells of the latter were found. Collected by Her- 
bert H. Smith in May, 1905. A specimen of P. inflecta from Jack- 
son, Ala., is figured for comparison, pl. 3, fig. 5. 

Types No. 5889 of my collection and cotypes in the collections of 
the Academy of Natural Sciences, Bryant Walker and T. H. Ald- 
rich. 


THE NAUTILUS. 75 


ON SOME CYPRAEIDAE IN THE COLLECTION OF MR. D. W. FERGUSON, 
OF BROOKLYN, WITH DESCRIPTIONS OF SEVERAL NEW VARIETIES. 


BY SLOMAN ROUS. 


In this collection—which Mr. Ferguson kindly allowed me to in- 
spect—the Cypraeide are especially interesting. ‘There are several 
varieties that appear to me to have been not hitherto noticed, and 
some which, though not attaining varietal dignity, are well worthy 
of remark. 


CYPRAEA HELVOLA Var. APHRODITE, var. nov. 

More pyriform and much wider than the type, and considerably 
depressed. Very pale yellowish-brown, sides slightly darker, again 
changing to the paler dorsal color on the base, the interstices of the 
teeth a full shade darker, back flecked with numerous small snow- 
white spots, and a few larger spots of a still pale brown, but darker 
than the ground color. Edges of base rather heavily thickened. 

I am not sure that this shell may not claim specific rank, while it 
is close to C. helvola, the differences are many. Beside its pyriform 
shape the outer half of the base is about two and a half times wider 
between the aperture and outer edge than the opposite, and the teeth 
are prolonged almost half-way over this space, making them appear 
finer and more elegant than in helvola. The aperture is almost straight 
and narrower than the type. This is accentuated by the columellar lip 
being much less arcuated than is normally the case, so that the 
anterior portion of the lips are almost as close together as the pos- 
terior. Long. 27, lat. 20, alt. 14 mm. It is a very lovely shell 
and undoubtedly very rare. Hab. Sandwich Is., W. H. Pease. 


A specimen of ©. arabica is curiously marked. On the inner side 
of the dorsal} line the pattern is normal, but on the outer side, while 
some of the white spots are irregular in shape, most of them are 
round and annulated with dark brown. The dorsal line is very 
crooked and would seem to indicate a malformation of the mantle. 

There is also a specimen of arabica var. eglantina Duclos. Mr. 
J. Cosmo Melvill, in his description of this shell in his “ Survey of 
the Genus Cypraea,” says it is shining brown. All the specimens I 
have seen have been the color of Portland cement, and decidedly 
not brown. 


CypRAEA EXANTHEMA Var. PUDICA, Var. nov. 
Shape normal, small, color very pale brown, with spots of gray- 


76 THE NAUTILUS. 


white, minutely—almost microscopically—thickly irrorated all over 
with dots of still lighter color than the spots, and showing on them as 
well as the rest of the shell, thickly, minutely granulated at the 
extremties, and less thickly so over dorsal surface, sides smooth. 
Long. 55, lat. 36 mm. 

Notwithstanding the dull coloring and that the granulation de- 
tracts somewhat from the lustre of the shell, it is still a very pretty 
and striking addition to the handsome suite of exanthema in the 
collection. 

A dwarf C. cervinetta is a very pretty little shell of a dark umber- 
brown, with whitish spots and dorsal line down the centre of the 
back, base fawn color with faint brownish blotch and bright choco- 
late-brown teeth. Long. 31, lat. 17, alt. 13.5 mm. 

In the suite of C. Zynx is a very interesting example. It is longi- 
tudinally corrugated from one side to the other by lines of growth. 
The earlier lines are narrow, numerous striations running from the 
spire obliquely to the base in which they disappear; on the back they 
are parallel to the sides, only bending near the anterior extremity; 
on the outer side they become parallel to the edge of the base. From 
the earliest to the latest stage of growth the intervals between the 
striae gradually and regularly increase in width until those on the 
outer side are shallow sulci between sharp costulae, the width of the 
last sulcus being 3mm. _ It isa young shell, probably waiting its last 
deposit of enamel, which would very likely obliterate the growth 
lines; as it is, it is a very beautiful illustration of shell-formation. 

Another specimen of Jynzx is interesting for its size; it is adult, 
normal in every respect, except size. Long. 21, lat. 11.5 mm. 


CYPRZA VITELLUS Var. FERGUSONI, Var. nov. 


Teeth, base and sides normal, dorsal line wide, lighter in color 
than the back, dorsal surface rather dark fulvous brown, obscurely 
banded with lighter shade and spotted with bluish-white or light 
lead-colored spots, which seem to solve themselves into rows of three 
or four in various directions, each spot surrounded by a narrow 
blackish ring; the spots at sides are not annulated. Long. 37, lat. 23, 
alt. 19 mm. 

The difference between this and the type lies in the annulation of 
the spots and their disposition in short rows. It is fully developed 
though small in size. Loe. ? 


THE NAUTILUS. 77 


CYPR#ZA CRUENTA var. VIOLACEA, var. nov. 


There are two specimens of cruenta, one typical in shape, the other 
stunted, broader, somewhat depressed, with the strong teeth of -var. 
coloba Melvill, but each having a large, bright violet patch on the 
base. The brownish-violet spots on the sides are also unusually 
bright. I propose the above name for such specimens as possess the 
violet basal blotch. 


CYyPR#A CAPUT-SERPENTIS var. 

Base and sides normal, back almost pure white but very faintly 
tinged with blackish on which the snow-white spots are just per- 
ceptible, the brown of the sides merging a little into the white of the 
dorsum, showing a narrow border of the typical white spots; ex- 
tremities of the usual smoky white. The white back accentuated by 
the dark sides is curiously suggestive of a bald head. 

Another specimen of caput-serpentis has the dorsal surface a 
lighter brown than the sides, and sparsely spotted and blotched with 
whitish-brown. _ 

There is also a dwarf specimen: Long. 20, lat. 13, alt. 10 mm. 


CYPR#HZA CAURICA var. 

Back light yellowish-brown with three brown bands, rather pro- 
fusely sprinkled with small brown spots. Base and sides creamy 
white, striated with fine pure white lines. Sides with a few large 
dark-brown purplish-shaded spots. 


CYPR#&A ISABELLA var. FULVA, var. nov. 

Uniform yellowish-brown, only very faintly tinged with orange at 
the extremities, base creamy-white. 

Length 304, diam. 16 mm. (Coll. Ferguson.) 

Length 35, diam. 19 mm. (Coll. Acad. Nat. Sci.) 

There is another specimen of ¢sabella the same color but with the 
normal longitudinal black markings and orange extremities. 


CYPR#A CARNEOLA Var. ADONIS, var. nov. 


Base pure white, extending a little up the sides, above which the 
sides are light yellowish-brown, thickly irrorated with minute white 
spots. Dorsum whitish, banded with four faint orange bands. Sides 
thickened. ‘Teeth yellow, turning to orange anteriorly. More pyri- 
form in shape than typical carneola. 

There is a diversity of opinion respecting this shell among our 


78 THE NAUTILUS. 


local collectors, some considering it a variety of CO. arenosa, and 
others C. carneola var. propingua Garrett. I think it is closer to 
carneola than arenosa, but it differs from propingua in having no 
violet ring and in the color of the teeth. 


SHELL COLLECTING ON THE MOSQUITO COAST OF NICARAGUA.—V. 
BY W. H. FLUCK. 


Liotia cruentata Mublf. 

Omphalius viridulus Gmel. 

Omphalius indusit Ch, 

Livona pica Linn. 

All from Man of War Keys. The last-named species is found by 
the dory-load, and is used as an article of food by the natives. When 
perfect, the shell is beautifully mottled with white and black, but 
most specimens from ‘the keys” are badly incrusted. The beau- 
tiful spiral operculum is a study in itself. 

Fissuridea alternata Say. Wounta Haulover. I found about a 
dozen in four years, the locality being, I suppose, not rocky enough 
for them. 

Subemarginula octoradiata Gmel. Man of War Keys. 

Acmea melanoleuca Gmel. King’s Keys. A white variety. 

Guppya biolleyi Mart. Rama Key. This little island is in the 
Bluefields lagoon, about 10 miles south of the town of Bluefields. 
The shell was found in the yard of the Moravian Mission. 

Epiphragmothora coactiliata Fer. Weilawas Hill, near Wani, 
Nicaragua, near where the Ulli river and Wani river meet to form 
the Prinzapolka river. 

Bulimulus corneus Sowb. Bluefields, in the garden of the Mora- 
vian Mission, among flags and other plants and under stones. 

Macroceramus caracasensis Rve. Bluefields. Same locality and 
station. 

Macroceramus concisus Morelet. Weilawas Hill, Wani, Nic. 

Bifidaria sp.? Bluefields. Numerous. Clinging to stones. Dr. 
Dall has seen specimens, and says they much resemble B. eyriesit 
Drouet, of Venezuela, or P. wolfii Miller, of Ecuador, adding: 
«‘ There are so many of these described that I don’t dare attempt to 
name it, especially as our series of these species from the tropics 
is very incomplete.” 


eet 


THE NAUTILUS. 79 


Oxystyla princeps Brod. Near Kukallaya, in the plantation clear- 
ings of the Indians, along the Kukallaya river (sometimes called 
Wounta river). Quite numerous. I have one specimen that lacks 
the characteristic zigzag markings, being quite plain, except for the 
dark-brown spot at the very point of the blunt apex, together with a 
faint suggestion of some narrow brown bands on the whorls. 

Subulina octona Linn. Bluefields, under stones and beneath foli- 
age in damp places. 

Subulina mimosarum Orb. Bluefields, Rama Key, Wounta Haul- 
over, Kukallaya. Under stones, wood, leaves, in damp places. 

Succinea recisa Morelet. Wounta Haulover, in a puddle left by 
the rainy season, between the sea and the lagoon and not more than 
100 yards from either. The bottom of the pool was grass-covered. 
Shells were clinging to a stem of cocoanut leaf, which had fallen and 
was submerged. 25 specimens. In the dry season the spot is dry 
and the grass dead, and the lagoon and all the water courses for miles 
around are salty. I never saw this shell anywhere else except on the 
banks of a little run in Bluefields, where they were rare. 

Melampus flavus Gmel. Man of War Keys. Large, banded 
and unbanded specimens. 

Melampus coffea Linn. Wounta. 

Exceedingly numerous. Used as beads by Indians. The un- 
banded variety will average larger than the banded. In March, 
1903, I collected some of these shells at the Bluff near Blueflelds, 
but the shells were all small, none being larger than J/. lineatus say 
of the North Atlantic. Inthe spring of the three years preceding 
1903, I searched the same spot, but found none of these shells. I 
am inclined to regard them as newcomers to Bluefield. 

Teredo sp 2? Wounta Haulover and everywhere on the coast. 

Pholas campechensis Gmel. Wounta Haulover, Prinzapolka, ete. 
Of the hundreds of valves cast up daily, I never found anything but 
right valves. Cannot some one who knows write an article on why 
it is that single right or left valves, as the case may be, are often 
found, to the exclusion of the other valves ? 

Tagelus poeyit Dall. Prinzapolka. On the beach toward the 
south from the town. Rare. Only 3 specimens. 

Periploma inequivalvis Schum. Wounta Haulover. Right valves 
only. 

Mactra (Mactrella) alata Spengler. Wounta Haulover, and along 


80 THE NAUTILUS. 


the whole coast. Abundant, both alive and dead; fragile, white 
and beautiful. 
Mulinia gaudeloupensis Recluz, Single valves on the shore at 
Wounta Haulover. 
(To be continued.) 


NEW VARIETIES OF NORTH AMERICAN PISIDIA. 
BY V. STERKI. 


During the twelve years’ study of our Pisidia, on about 350,000 
specimens examined, many new forms were found. Some of them 
have been published from time to time, since 1895, in the NauTILus, 
others were held back, mostly for years, in the hope of getting ad- 
ditional materials which would more clearly show their relations and 
positions. Owing to the great variation of most of our species, with 
some apparently endless, it is often difficult to know, or even to 
estimate, whether a new Pisidium represents a new species, or a 
variety, and it seemed preferable to be rather over-cautious with 
regard to ‘‘n. sp.”’ than too hasty. Yet new forms, more or less 
different from those published or regarded as typical for a species, 
should be named and described, and short descriptions of a number 
of such are offered in the following lines. They are ranged under 
species already known, as varieties, in many instances with some 
doubts, leaving it for further evidence to prove their real affinities 
or their claims to representing distinct species. A few short notes 
are necessarily added, but a more detailed discussion of the affinities 
etc., of the various species and forms is left for a forthcoming re- 
vision of our Pisidia. 

Pisidium idahoense Roper var. indianense n. Smaller than the 
types, less inflated ; beaks much narrower, low, little prominent over 
the hinge margin; surface with several well-marked lines of growth, 
more horn-colored than in the other forms; shell and hinge slight, 
the right cardinal tooth less curved ; long. 8, alt. 7, diam. 4 mill. 

Hab.: Lake Maxinkurkee, Ind., collected in considerable num- 
bers by Drs. Evermann and Bartsch, for the U.S. Fish Commission. 

As compared with the types from Idaho and the larger, much 
inflated form from Seattle, Washington, the Indiana Pisidium ap- 
pears to be of a distinct species. Yet a form, eventually a var., from 


THE NAUTILUS. 81 


Lake Michigan: Charlevoix (Walker) and the South end (Daniels) 
is somewhat intermediate, although more like the Idaho form, and 
so it appears to be safer to regard the above as a variety of the same 
species for the present. 

Pisidium compressum Vr., is very variable, but a number of its 
forms and varieties are characteristic and rather constant. As 
typical is accepted the common river and creek form: beaks high, 
narrow, with well developed appendages, above which there are 
small flattened or even impressed smoothish areas, usually with more 
or less distinct radial lines; balance of the surface with rather 
coarse, sharp, regular, concentric striz, dull, with microscopic 
wrinkles, color whitish to grayish, and often there are marginal 
zones of straw to yellow color, with more shallow, irregular striz, 
more or less shining; shell and hinge stout, with whitish nacre. 

Var. opacum n. In shape and size near. the typical form, well 
inflated, but the surface is finely and irregularly striate, dull to shin- 
ing, color often plumbeous above; beaks with the appendages 
slighter, or merely flattened on top; shell and hinge stout, the for- 
mer opaque. 

This is a form of sloughs, ditches, pools, ete., along rivers and 
creeks, quiet places in such, with muddy bottom, also of lakes and 
ponds near inlets; it seems to be a retrograde one, with respect to the 
surface sculpture, and it is notable that also the young in such places 
have the fine, obsolete striz. 

Var. levigatum n. Moderately oblique, of medium to rather 
large size, generally well inflated ; beaks less elevated, rounded or 
more or less flattened on top with slight or obsolete ridges ; surface 
with fine, irregular striz to nearly smooth, more or less shining ; 
color light to dark horn; shell slight, translucent, naere, more glassy; 
hinge slight, generally less angular than in the type. 

Widely distributed, in quiet waters. These mussels often have 
considerable resemblance, in shape, with Pis. variabile Pr. (which is 
variable on somewhat corresponding lines), and it is sometimes very 
difficult to distinguish dead or fossil specimens of the two, and even 
fresh shells of certain forms. 

Var. limnicolum n. Near levigatum, but much smaller, some 
specimens have ridges or well-formed appendages on the beaks; 
shell and hinge slight, cardinal teeth well formed. A form of 
deeper, quiet water, lakes, ete. Hundreds of specimens at all stages 


82 THE NAUTILUS. 


of growth were collected in the Fox River, Wisconsin, by the late 
Geo. T. Marston. 

Var. rostratum n. Of medium size, moderately to rather well 
inflated, oblique, outlines slightly angular ; beaks little prominent, 
rounded or with slight ridges around the slightly flattened central 
areas; angles at scutum and scutellum well projecting, slightly 
rounded, especially at the latter, the projecting part of the mussel is 
somewhat rostrum-like, pinched, surface with fine, irregular striz, 
somewhat glossy ; color pale to yellowish or brownish-horn, shell 
rather thin, translucent, hinge slight, with the teeth small but well 
formed. 

The typical form (of the var.) from Reed Lake (Dr. Kirkland), 
Blue Lake, and other waters in Michigan, Clear Lake, Indiana 
(Daniels). 

Var. arrosum n. Rather small and low, not very oblique, outlines 
somewhat angular, moderately inflated, beaks not much elevated, 
narrow, rounded or slightly flattened on top, without appendages, 
and with barely any radial lines ; surface with very fine striz above, 
becoming somewhat more distant and irregular towards the margins, 
slightly shining, color pale to yellowish or reddish-horn, shell thin, 
somewhat translucent, hinge slight. 

Michigan: Grand Rapids in several lots (Streng, Kent Scient. 
Inst.), Blue Lake, Allegan Co. (Dr. Kirkland), Brooks Lake, 
Newaygo Co. (Streng), Green Creek, Allegan Co. (Walker). A 
peculiarity of this rather constant form is a disease found on the 
shells of almost all specimens : small white spots of erosion gradually 
becoming confluent and extending over a large part of the surface. 

Var. confertum n. Of medium size, somewhat oblique, well and 
compactly inflated; beaks broad, not much prominent, slightly 
flattened on top, or rounded, without appendages; upper margin 
moderately curved, with projecting angles where passing into the 
supero-anterior and posterior slopes which are well marked, rather 
long, straight, the former steep, the latter nearly perpendicular ; 
scutum and scutellum marked in some specimens; surface with 
irregular, slight strie and lines of growth, dullish to slightly shining; 
color straw to yellowish, reddish or brownish-horn, generally with 
irregular, lighter and darker, concentric zones; shell rather stout, 
slightly translucent, nacre whitish, muscle insertions well marked, 
hinge moderately stout, as compared with typical compressum, median 


THE NAUTILUS. 83 


part (plate) rather long and slightly curved; cardinal teeth small 
and rather defective,’ of the right, the posterior end is small, simple, 
the anterior small, low and nearly obsolete, the left anterior short, 
somewhat massive, the posterior oblique, short, slight and not pro- 
jecting over the level of the valve-edge, lateral teeth at strong angles 
to the plate, the right ones little elevated, the cusps of the left 
rounded ; ligament stout, covered in younger, partially or quite un- 
covered in adult specimens. 

Size: long. 4, alt. 3.8, diam. 2.8 mill. (average). 

Habitat: Blue Lake, Muskegon co., Michigan, collected by Dr. 
Kirkland, in good numbers, remarkably uniform. 

This is certainly a remarkable form, and has rather the significance 
of a species, yet seems to be connected with other forms of P. com- 
pressum. 

Var. coosaense n. Of medium size, straw to light horn colored ; 
in shape near the typical form, with rather posterior, narrow, ele- 
vated beaks bearing appendages; superior margin somewhat less 
curved and rather long, the supero-anterior slope somewhat more re- 
mote from the beaks; surface with fine to very fine strie, dull to 
slightly shining. Shell and hinge rather strong. 

Hab.: Georgia and Alabama, along the Coosa river (collected by 
Smith, sent by B. Walker). 

In younger to two-thirds grown specimens, the features of this 
form are especially well marked : the outlines rather angular, all mar- 
gins little curved, while full-grown examples are approaching the 
typical form, except as to surface sculpture. 

Var. contrarium n. Of medium size, well inflated, moderately 
oblique ; outlines various from near those of coosaense and the typ- 
ical form, though less angular, to rounded, nearly oblong or oval, 
with only the supero-anterior slope more or less marked ; beaks gen- 
erally less posterior, moderately elevated, rather narrow, with a 
small, more or less flattened area on top, and a slight ridge or even 
small appendage; surface with rather fine, crowded, sharp, regular 
strie, dull ; color pale to grayish horn, often with a light zone along 
the margins ; shell and hinge rather stout. This Pisidium, although 
rather variable in itself, and probably connected with other forms, 
marks an interesting contrast to coosaense as well as to the type, and 
laevigatum, ete. 

Alabama: Attalla, Calera, Ebenezer Church, Montevallo. (Smith 
collected, B. Walker sent.) 

Var. smithii n. Of rather good size, little inequipartite, somewhat 
oblique, moderately to rather well inflated, more so near the beaks, 
while the lower parts of the disks are rather flat ; outlines rather 
angular, with the angles more or less rounded, superior and inferior 
margins moderately curved, the superior rather long ; supero-anterior 
slope nearly straight, steep, posterior part subtruncate ; beaks not 


1Tn several specimens examined. 


84 THE NAUTILUS. 


much behind the middle, prominent, rather narrow, more or less 
flattened on top, with ridges or slight appendages; surface with 
rather crowded, sharp, regular striz, dullish ; color from light horn, 
in the younger, to brownish ; light chestnut in adult specimens. 

Hab.: Shoal creek, Alabama (Hinkley). 

This form is mainly characterized by its beaks being less posterior 
than in most others, and, as it seems, by its brownish color. 

The above are a few of the more marked forms of the very poly- 
morphous P. compressum Pr. More have been noticed, and some of 
them will probably also have to be named and described ; besides, 
more will be brought up with new materials. 

Pisidium fallax Sterki var. mite n. Rather smaller than the 
typical form, beaks without appendages, or slightly flattened on top; 
shell and hinge slighter. 

Hab.: Grand river, Michigan (Dr. Kirkland), Nimishillen creek, 
Canton, Ohio (Sterki). 

Var. errans Sterki. Has been published as var. septentrionale 
Sterki. (The Navutitus, XII., p. 78.) The name, being pre- 
occupied,' had to be changed. This well-characterized Pisidium has ~ 
been seen from northern Maine, northern Michigan, Minnesota and 
Keewatin. (McInnes Col., Whiteaves sent.) 

Pisidium punctatum Sterki var. armatum n. Higher, and often 
larger, than the typical form, beaks very prominent, with strong 
appendages, which give the mussel quite a different shape and 
appearance. 

Hab.: Tuscarawas river, Ohio (Sterki), and other places. 

Var. simplex n. Beaks without appendages, rounded or slightly 
flattened on top; striation slighter; mussel sometimes smaller than 
the typical form. 

Hab.: Joliet, Illinois (Ferriss, Handwerk), Carp Lake near 
Mackinaw, Michigan (Walker), Fox River, Wisconsin (Marston). 

( To be continued.) 


GENERAL NOTES, 


MAssACHUSETTS SLUGS.—I am indebted to Mr. John Ritchie, 
Jr., for two lots of slugs collected in the vicinity of Boston. The 
first lot included Arion subfuscus, Draparnand, of the form called 
cinereo-fuscus, Drap., and Limax maximus, L., of three forms, the 
first nearly typical, the second var. obscurus, Moquin-Tandon, and 
the third var. cellarius, Moquin-Tandon. A series received to-day, 
collected by Mr. Abner Hatfield at Jamaica Plain, includes A. sub- 
fuscus, v. cinereo-fuscus, L. maximus and Agriolimax agrestis. The 
A. agrestis unfortunately are dead and somewhat spoiled, but they 
are of the dark and reddish forms, not the very pale kinds so com- 
mon in England. I was glad to confirm the Boston Arion as A. sub- 
Suscus. T. D. A. CocKERELL. 


1T. Prime, Cat. of 1895, ‘‘ undescribed.” 


THE NAUTILUS, XIX. J PILI UC 


CLAPP: NEW ALABAMA MOLLUSKS. 
COLTON : STROMBUS PUGILIS. 


PLATE IV. 


KIX. 


? 


THE NAUTILUS 


DALL: TONICELLA BLANEYI. 


moe NAUTILUS. 


Vou. XTX. DECEMBER, 1905. No. 8, 


SOME NOTES ON LIVING STROMBUS PUGILIS. 
BY HAROLD SELLERS COLTON. 


In the latter part of January a severe norther cast many indi- 
viduals of Strombus pugilis upon the beach of Sand Key near Clear- 
water Harbor, Florida. I sent many north to Dr. Burnett Smith, 
of the University of Pennsylvania, who had intended to determine if 
there was a case of sexual dimorphism in this species. Circum- 
stances preventing him from touching the material for the present, 
he persuaded me to work upon it. The results of my measurements 
were published in the March Nauritus. As the natural history of 
the Mollusca is so little known, I hope.a few notes of my observa- 
tions will not be out of place. 

Strombus pugilis is very hardy and easily transported. I ex- 
pressed alive twenty-five individuals in a starch box. Each one I 
wrapped in dry newspaper ; two weeks afterward, and a week and 
a half after they had rested in a warm room, a number were yet 
alive and none had as yet begun to decompose. Another lot I packed 
in damp seaweed and four days afterward I unpacked them and 
placed them in an aquarium in Philadelphia. They started to 
crawl about at once. When I left Philadelphia in the early part of 
June one was yet alive. Several were killed by the starfish and the 
others lived for four months and then died from unknown causes. 

I had occasion to break open a number of the shells with a hammer 
in order to remove the soft parts for anatomical purposes. This I 
found a very difficult task. The shell is so resisting that many blows 
in the same place were required to make even a small hole. This 


86 THE NAUTILUS. 


great strength of shell shows how well they are protected to with- 
stand the surf of the exposed beach. 

On such a beach Strombus pugilis is the most common visible 
Gasteropod in the winter. Others may be abundant at other seasons 
of the year. I found none alive nor did I find a dead shell within 
the still waters of Clearwater Harbor, although the flats and bottom 
were composed of sand as is the outside beach; and a series of ex- 
tremely low tides allowed me to traverse miles of bottom not ordi- 
narily exposed at low tide. Since they are cast up by the surf in 
large numbers in a storm they must be abundant just beyond the 
breaker line. 

Within the mantle cavity I found a species of oyster crab that 
Miss Rathbun has given the name of Pinnotheres strombi. A com- 
mensal of this sort I believe is unique in a Gasteropod shell. 

Every collection of tropical marine shells contains the shells of 
Strombus, The bright colors exhibited by most of the species are 
perhaps its chief attraction. Its activity when alive is noted all 
through the literature. Not alone are its movements described but 
pages are covered with beautiful colored drawings of the animal. 
Most of the activities have been described from animals under ab- 
normal conditions, and the drawings made from animals out of the 
water. Nowhere can J find asketch nor a description of the animal 
in a living attitude. 

Locomotion in Strombus and its allies is peculiar. ‘This is due to 
the structure of the foot. The operculum has changed from an 
organ of protection to one of locomotion. Situated as in most Gas- 
terpods on the dorsal surface of the metapodium, it is peculiar be- 
cause it is joined to the foot by about one-third of its surface. The 
two-thirds free extends downward and in a posterior direction, with 
its slender point turned toward the left side. The propodium and 
mesopodium compose one-sixth the ventral surface of the foot, the 
rest is metapodium. 

I quote from the voyage of the “ Astrolabe :” ‘ Le form particu- 
lier de leur pied ne permet pas de marcher comme les Gasteropodes. 
Ne pouvent pas ramper ils sautent en prenant un point fixé sur le sol 
i aide de leur opercule.” Adams in the voyage of the “ Samar- 
ang ”’ describes their method of locomotion as rolling over and over. 
Both of these observations are founded on fact; the former was ob- 
served in the water and the latter on land. 


THE NAUTILUS. 87 


By placing them very close to the glass of the aquarium I was able 
to observe their movements with some detail. When preparing to 
move they extend their propodium in an anterior direction, at the 
same time contracting their metapodium (Plate III, fig. 11). They 
bend the anterior end of their propodium down into the sand, and as 
the natural position of the operculum is downward and backward at 
an angle, when the metapodium is thrust out, the operculum sinks 
into the sand. With the propodium and operculum as anchors the 
heavy shell is slid forward (late III, fig. 12). Sometimes I have 
seen them project the end of their metapodium out as far as the tip 
of the spire. The movement is about an inch and a half per step. 
The track is represented by a series of little ridges. There is a de- 
pression on the edge of the lip of the aperture that would on a 
superficial examination seem to correspond to the anterior siphon 
canal that is found in many Gasteropods. Through this groove the 
right eye-stalk protrudes, and the left eye-stalk comes through the 
true groove of the anterior siphon canal, although no fold of the 
mantle extends beyond the interior of the shell. (Plate ITI, fig. 13.) 

The sight of this mollusk is remarked on in almost every account 
of it. It was my own experience that they would draw within their 
shell whenever I came within four feet of the aquarium. They also 
react toa jar. They react definitely when a solid object is passed 
between them and the source of light. Just how keen their sight 
really is I was unable to determine. 

All the time I had them in the aquarium I never succeedéd in 
' getting one to eat. I tried fresh oyster méat and oysters that were 
opened and placed in salt water for two or three days. I also tried 
raw beef. It is described as a ‘** buzzard among mollusks,’’ but I 
was not able to observe it feed. When crawling in the sand it 
swings its proboscis from side to side like an elephant, sometimes 
dipping the tip into the sand and working its powerful radula. But 
I could never observe the presence of food of any kind. In the four 
months I had them in captivity they did not seem to waste away 
appreciably. 

Strombus is a very interesting mollusk, and would repay study 
in several fields. Its hardiness assures its easy transportation, and 
it will live months in confinement. Its eye is wonderfully well 
adapted to study the histology of the Gasteropod eye, as it can be pre- 
served without distortion. The large size, abundance and bright colors 
of the shell make it a conspicuous object on the beach. 


88 THE NAUTILUS. 


LITERATURE. 


Adams. Voyage of the Samarang. 

Arnold, 1901. Sea Beach at Ebb Tide, p. 375. 

Colton, 1905. Nauritus, April, vol. xviii, p. 138. Sexual Di- 
morphism in Strombus pugilis Linné. 

Fluck, 1905. - Nauritus, July, vol. xix, p. 32. Shell-Collecting 
on the Mosquito Coast of Nicaragua. 

Quay and Gamard, 1834. Voyage del’ Astrolabe, vol. iii, p. 55-60. 

Rathbun, 1905. Proce. Acad. Nat. Sci., Phila., vol. lvii, part ii, 
p- 871. Description of a New Species of Commensal Crab. 

Souleyet, 1852. Voyage de la Bonite, vol. xii, p. 164. 


A NEW CHITON FROM THE NEW ENGLAND COAST. 
BY WILLIAM HEALEY DALL. 


Mr. Dwight Blaney of Boston, while dredging in twenty fathoms 
off Ironbound Island on the Maine coast, was fortunate enough to 
discover a species of Chiton which, after comparison with Northeast 
American and North European species, appears to be new. 

Seven species of Chitonide are known from the coast of New 
England in less than 100 fathoms. All these have been known for 
many years. One Arctic species is reported from the Gulf of St. 
Lawrence and may reach the Maine coast. Besides these there are 
two species known only from abyssal water in the North Atlantic, 
not from the coast and not properly belonging to the New England 
fauna. It is therefore a matter of more than common interest to 
have a new species discovered, and, because the circulation of the 
Proceedings of the Biological Society of Washington may probably 
not reach the mass of malacologists, it was thought desirable to re- 
print the diagnosis here and add to it a careful illustration of the 


type. 


TONICELLA BLANEYI Dall. Plate IV. Proc. Biol. Soc. Wash., 
xviii, 1905, pp. 203-4, Sept. 2, 1905. 

Shell of a deep rose-color, with fine white lineations and reticular 
markings; girdle brown, apparently naked, but exhibiting under 
high magnification a microscopic granulation with a row of small 
spinules at the extreme edge, as in J. marmorea; the coloration of 


TIE NAUTILUS. 89 


the valves outside, in the type specimen, is fairly uniform but prob- 
ably more or less variable among individuals; the valves inside are 
of a deep rose-pink, paler toward the edges; surface minutely more 
or less quincuncially punctate, but this is visible only when magni- 
fied ; the sculpture consists of (on the midvalves usually three) radial 
riblets with a tendency to bifurcate or break up into segments dis- 
tally ; there are no distinctly marked areas on the midvalves, but tlie 
part of the valves which bears what in many chitons are called the 
lateral areas, in this species carries two or three, sometimes bifurcate, 
thread-like ribs which are flattened above and rarely reach the mucro 
of the valve, being usually evanescent dorsally ; there are also more 
or less deeply impressed lines of growth; the median part of the 
valves is nearly smooth except for the microscopic punctation ; an- 
terior valve semicircular, with numerous, more or less irregular, 
radial riblets that resemble those on the midvalves; the eaves are 
conspicuously spongy ; the insertion plates are blunt, crenulate at the 
edge, but not radially striate ; the anterior valve in the type has 10, 
but would seem normally to have either 9 or 11 slits, as one seems 
missing or in excess, on one side; the midvalves have one slit on 
each side, their anterior lamelle are nearly continuous across the 
dorsal sinus; the posterior valve is small, without a mucro, the in- 
cremental lines strong, the ribbing obsolete or nearly so; in the type. 
while there is not a posterior sinus like that of Chetopleura, there is 
a certain flattening and the insertion plates bordering this part of the 
valve are poorly developed; there are 7—9 slits between which the 
distal edges of the plates are more or less irregularly crenate ; in the 
dried specimen the muzzle has a prominent *‘ veil”’ or tegumentary 
margin ; the ctenidia number about 15 on each side and extend for- 
ward on each side of the foot to the fourth valve; length over all 
(dry), 18mm.; width, 8 mm.; dorsal angle, 120°. 

Dredged in 20 fathoms off Ironbound Island, Frenchman’s Bay, 
near Mt. Desert Island, Maine. 

From Trachydermon ruber, Tonicella marmorea, and similar 
species, this form can be at once distinguished by the ribbing. If 
the type specimen be characteristic in its color, the pattern and hue 
would be equally distinctive. In 7. ruber the girdle is pubescent 
and parti-colored ; in 7. marmorea and the present species it is of a 
uniform brown. The type specimen has been generously donated to 
the U. 8. National Museum. 


90 THE NAUTILUS. 


The species seems somewhat intermediate between Tonicella and 
Trachydermon, with a leaning toward the former, while it seems to 
be most nearly related specifically to Ton¢cella marmorea of Fabricus. 


EXPLANATION OF PLATE IV. 


Fig. 1. Middle valve, interior, from below; 2. The same valve 
from above; 8. Front valve from above; 6. The same valve from 
below; 4. The tail valve from above; 5. The same valve from be- 
low ; owing to the spongy condition of the margin the artist has 
slightly exaggerated some of the vertical strie so that they are liable 
to be taken for true notches, the number of which is as stated in the 
diagnosis above. All the figures are considerably magnified, and to 
a uniform scale. 


A NEW BRACKISH-WATER SNAIL FROM NEW ENGLAND. 


BY HENRY A. PILSBRY. 


Mr. Owen Bryant collected at Cohasset, Massachusetts, the past 
summer, specimens of an Amnicoloid snail which appears to be un- 
described. It was found living in company with Paludestrina minuta 
(Rissoa minuta of authors) and Odostomia impressa. 


PALUDESTRINA SALSA n. sp. Pl. III, fig. 10. 


Shell very thin, perforate, oblong-conic, about the shape of Amnzi- 
cola lustrica; corneous-gray or a little greenish; the surface having 
the luster of a dull silk, very finely striatulate, weakly decussated 
with faint spiral striae. 

Whorls 54, moderately convex, with the suture impressed but not 
so deep as is usual in Amnicola or Paludestrina, Aperture ovate, a 
little less than half as long as the shell, subvertical. Peristome thin 
and sharp, a little sinuous, the outer lip being somewhat retracted 
below its upper insertion ; columellar margin concave, thin ; the inner 
margin adnate, thin and straightened for a short distance near the 
upper angle of the aperture. Length 3.1, diam. 2, length of aperture 
1.5 mm. 

Cohasset, Mass. Cotypes in collections of the A. N.S. Phila. 
(no. 90445), Boston Society of Natural History, and Owen Bryant. 

Compared with the common P. minuta (Totten), this new species 
differs in its more broadly conic shape, less deep sutures and larger 


THE NAUTILUS. 91 


last whorl and aperture. Moreover, the apex, in all the specimens 
seen, is perfect, while P. minuta is almost invariably eroded above, 
several whorls being lost from the tip in adult specimens. 


CARYCHIUM NANNODES N. SP. 


BY GEO. H. CLAPP. 


In shape this species (Plate III, figs. 7, 8, 9) resembles C. exile, 
being long and slender, but differs in being absolutely smooth, with- 
out any trace of growth lines, even when magnified 60 diameters ; 
under high magnification the surface shows a faint granulation ; 
color waxy-white, transparent, the columellar fold showing distinctly 
through the shell ; whorls about 44, regularly tapering from the body- 
whorl to the apex; sutures deep, whorls slightly shouldered ; lip 
wide and well reflected especially at the columella where it forms a 
distinct umbilical chink, outer curve of lip decidedly flattened, 
hardly thickened within ; viewed from the back the lip is more 
squared below than in exile and extguum; upper columellar fold of 
good size, lower one almost obsolete. 

Length 1.4, diameter 0.5 mm. 

Collected by Herbert H. Smith on Monte Sano, about 5 miles 
east of Huntsville, Ala. ‘‘ Abundant among leaves in a shady ditch 
in damp forest near the top.’’ (H.H.S.) Altitude about 1600 ft. 

Types No. 5401 of my collection and cotypes in collections of 
Acad. Nat. Sci., Bryant Walker and T. H. Aldrich. 

This is a most distinct species, as its size alone at once separates 
it from all of the other American representatives of the genus. 

With this species Mr. Smith also found some C. exile, which agree 
with the northern shells, except that they are more coarsely ribbed. 
They are beautiful shells under the microscope. 


I8 COCHLIOPA ROWELLI A CALIFORNIAN SHELL? 


BY H. A. PILSBRY. 


Cochliopa rowelli is a small, solid umbilicate snail, somewhat heli- 
ciform or Va/vata-shaped, and with an operculum like //uminicola 
or Amnicola. It was described by Tryon from specimens received 


92 THE NAUTILUS. 


from Gabb, who stated that Mr. J. Rowell, well known as a concholo- 
gist, found them in Clear Lake, California. Specimens are in the 
collections of the Academy of Natural Sciences and the Smithsonian 
Institution labeled as from this place; and Binney (Land and Fresh- 
water Shells of N. A., part iii, p. 73) gives no other information. 
So far as I know, no other writer on Californian shells has noticed 
the species. Its status as a member of our fauna has rested for forty 
years only upon the information given by Gabb. 

In the collection of the Academy there are also specimens of the 
same species from Panama, received from the late Dr. Wesley New- 
comb. The other described species of the genus Cochliopa, some 
four in number, are from Central America. 

As the occurrence of the genus in California waters is a matter of 
some importance from a zodgeographie standpoint, we would ask all 
collectors in Central California to give what information they can 
upon it, whether relating to the original finding of the snail or to its 
present distribution. The experience of any who have collected in 
Clear Lake will be of interest, whether the species in question has 
been found or not. 


PUBLICATIONS RECEIVED. 


SHELLS oF PorTLAND AND Vicinity.—This is the title of an 
article by J. W. Mighels, which appeared in the Portland Tribune, 
1841, page 64. The exact date of publication is not given on the 
clipping, which was found by Mr. Owen Bryant in an old book pur- 
chased in Boston. It probably represents the first catalogue ever 
published of the shells of Maine. A few remarks commending the 
study of conchology, and soliciting exchanges, is followed by a list, 
without notes, containing about 154 species, exclusive of the barna- 
cles, etc., arranged according to the Lamarckian system. C. W. J. 


Tue Oyster.—A popular summary of a scientific study. By 
Wm. K. Brooks, Ph. D. (The John Hopkins Press, Baltimore.) 
One of the most interesting and readable books pertaining to the 
mollusca that has ever been published. It points out clearly the 
possibilities of oyster culture, the anatomy and development of the 
oyster ; artificial cultivation; the cause of the decline of the oyster 
industry and the remedy. Co Wad. 


THE NAUTILUS. 93 


LAND AND FresH-WATER MOLLUSKS OF ALASKA AND ADJOIN- 
inG Reeions. By William H. Dall (vol. xiii of the Harriman 
Alaska Expedition. The scope of this handsomely printed volume 
of 171 + xii pp. is as follows: ‘* The first object of this work is to 
sum up the known molluscan fauna of the land and fresh waters of 
Alaska. This has involved an examination not only of the species 
obtained within the political boundaries of Alaska, but also those of 
the adjacent regions to the west, east and south. The result is that, 
for North America north of latitude 49° north, the work includes a 
summary of our present knowledge of the mollusks, deduced in part 
from the literature and in larger part from material actually exam- 
ined. To this is added a briefer examination of the mollusk fauna 
of the adjacent parts of eastern Siberia, which has to some extent 
modified that of Alaska.” 

Four faunas are recognized as influencing the Alaskan non-marine 
mollusks: that of northern Canada, that of the northern Pacific 
States of the U. S., and in a much less degree the fauna of north- 
eastern Asia, and the Holarctic group of mollusks common to all 
northern regions. From all sources, 65 species of land and fresh- 
water mollusks are known from within the boundaries of Alaska. 
In the list of species, references are restricted to original descriptions 
and records of occurrence in the boreal region. Most of the species 
are illustrated by text figures from the works of Binney and Prime, 
a feature largely adding to the usefulness and attractiveness of the 
work. Besides records from the literature, a great mass of new data 
is presented. Frequently vast areas are added to the known distri- 
bution of our species, supplying numerous localities where before 
only isolated or frequently doubtful records existed. The amount 
of new information is so great that no attempt to condense it here 
would be satisfactory. A few interesting points about particular 
species may be mentioned. Lpiphragmophora fidelis and Polygyra 
columbiana are the only large Helices which actually reach Alaska, 
though a good many others are recorded from north of 49°. The 
figure of P. monodon (p. 26) represents P. m. fraterna. It is re- 
ported from Moose Factory, James Bay. Vertigo arctica Wallenb. 
is given as from Port Clarence, collected by the Vega Expedition, 
and V. krauseana Reinh. from Chilkat Inlet, Alaska. The name 
Vitrea radiatula Alder is preferred for V. hammonis, and many 
Alaskan localities are given. An addition to the American fauna is 


94 THE NAUTILUS. 


Vitrea nitidula Drap., from Fort Resolution, Great Slave Lake. The 
name Huconulus trochiformis Montagu is used in place of ZL. fulvus 
Miuill., in my opinion improperly. The unusual distribution of Sue- 
cinea grosvenort Lea, from Louisiana to Fort Simpson on the upper 
Mackenzie, is noticed. I was also impressed with the disregard of 
this snail for altitude or latitude some time ago, when studying the 
Texan forms, yet could find no character-in the shells to separate 
southern from northern individuals. Swecinea chrysis, ‘ the com- 
monest and largest land shell of the boreal American region,” is 
reported from many places from the Mackenzie river west. A 
synonym which Dr. Dall seems to have overlooked is S. rotundata 
Sowerby, Conch. Icon. xviii, pl. 11, f. 78 (1872). This name would 
have precedence if it were not preoccupied. 

In the Lymnezide an interesting and valuable discussion of the 
generic and subgeneric synonymy of the groups is given. No 
attempt is made to distinguish the races of ZL. stagnalis, of which 
several have in recent years been brought into use by some of our 
students. Lymnexa atkaensis Dall, from Atka, Aleutian chain, is 
figured. The name of this species was given as atkinensis by Clessin 
in the Conchylien Cabinet, p. 390. The difficult group of L. mighelsi, 
emarginata, binneyt, randolphi, etc., is discussed at some length ; and 
the synonymy given will prove interesting to those who have worked 
with these perplexing forms. 

The generic and subgeneric synonymy of Planorbis is discussed at 
length, and long-needed rectifications in the nomenclature are made. 
Say’s original spelling of P. exacuous is restored in place of the 
emended form exacutus. Planorbis opercularis Gld. includes as 
varieties planulatus Coop., centervillensis Tryon and oregonensis 
Van. Planorbis nathorsti Westerl., described from Greenland, is 
recognized from Labrador. A new section, Haldemanina, is pro- 
posed for Segmentina wheatleyi Lea. 

In the Unionide, the northwestern Margaritana margaritifera is 
recognized as var. faleata Gld. It differs from the typical form by 
the purple nacre. It has invaded the head-waters of the Missouri in 
Montana, and occurs also in Alaska. The new species and varieties 
are as follows, most of them are illustrated on two handsome helio- 
type plates : 

Polygyra germana var. megasoma. ‘ More than four times the 
size of the typical germana, but otherwise quite similar. Northern 
California”’ (p. 26). 


THE NAUTILUS. 95 


Circinoria vancouverensis var. chocolata. ‘‘ A variety of a dark 
chocolate-brown color, otherwise like the ordinary form, was found 
rather commonly at Sitka.” 

Vitrina alaskana Dall, new name for V. pfeifferi Newe., “not V. 
pfeiffert Deshayes in Fér. Limagons, 1822.”” I have been unable to 
trace any V. pfeiffert in Férussac’s work which is cited without page 
reference as above. Vitrina is not recognized as a genus in that 
work, which so far as I recollect was published before Deshayes had 
begun publishing on land shells. It would be well to await fuller 
data proving preoccupation before rejecting Newcomb’s well-known 
name for this species. 

Oreohelix strigosa var. stantont. Dwarfed, measuring in maximum 
diam. 10, min. 8.5, height 8 mm., with about 5 whorls, umbilicus 
1mm. Assiniboia, 33 miles s.-e. of Medicine Hat., near tup of 
Cypress Hills, alt. 4700 ft. 

Lymnea petersi Dall. Koyukuk River, north of the Yukon, in 
Alaska. A delicate species of the typical group of Lymneza, 16 mm. 
long. : 

Lymnea (binneyt var.?) preblei Dall. A large and peculiar form 
from Manitoba and Keewatin, 37-38 mm. long. 

Lymnea perpolita Dall. A small, dark, smooth and polished form 
from Nushagak, Bristol Bay, Alaska. 

Lymnzxa anticostiana Dall. Pleistocene marl of Marl Lake, 
Anticosti Island. 

Planorbis campanulatus var. rudentis Dall. Wider and flatter 
than the type. Knee Lake, Keewatin. 

P. exacuous var. megas Dall. Whitish, and larger than the 
typical form. Manitoba. 

Segmentina (Planorbula) christyi Dall. Manitoba. Larger, flatter 
and more sharply sculptured than S. armigera Say. 

Valvata (sincera var.?) nylanderi Dall. Aroostook Co., Maine. 

Valvata lewist var. helicotdea Dall, With typical lewis? especially 
northwestward. More depressed, with the last half whorl more 
peripherally diverted. 

The work will take a place hitherto unfilled in America, that of a 
standard fauna of the region north of the United States boundary. 
It is a pleasure to add that the mechanical execution, paper, typog- 
raphy and press-work, are worthy of the subject-matter, and are a 
credit to the publishers, Messrs. Doubleday, Page & Co. 

H. A. P. 


96 THE NAUTILUS. 
NOTES. 


ACHATINA GRACILIOR Boettger.—This fine species described 
from Camroon in the Nachrichtsblatt for this year, p. 167, pl. 7, f. 
1, 2 (issued about Nov. 1, 1905), seems to be quite identical with 
A. papyracea var. adeline Pils., Manual of Conchology, part 67, p. 
118, pl. 20, f. 4, 5 (issued March 1, 1905). 

PHYSA RHOMBOIDEA.—The name Physa rhomboidea was originally 
applied by Meek and Hayden (Proc. Acad. Nat. Sci. Phila., 1856) 
to a Cretaceous fossil. Hence P. rhymboidea Crandall becomes a 
homonym. It does not seem necessary to propose a new name since 
Miss Springer’s recent paper in Proc. Acad. Nat. Sci. Phila., (1902 
p- 513) indicates that it is not essentially different from P. humerosa, 
—T. D. A. CockrrRe.t. 

NOVEMBER SNAILS.—At noon of Nov. 21, I was out for an hour, 
to look after some mollusks, along a dry, gravelly bank exposed to the 
sun nearly all day, during summer. <A few trees, shrubs and herbage 
were shading part of it. We had had severe frosts night after night, 
and the soil was usually frozen till late in the forenoon. Under 
boards, bricks and stones, the following mollusks were found ap- 
parently none the worse from being frozen in most of the time. 

Agriolimax campestris Say, several hundred specimens, some of 
them only half grown, others young, only a few millimeters long; 
newly laid ova were found, and one containing a nearly mature 
embryo. Two specimens were seen in the characteristic attitude 
ready for copulation. Freshly deposited ova have also been found ip 
the earliest spring days, some years ago. 

Zomtoides arboreus Say, common. 

Patula striatella Anth., common, more at shaded places. Vadllonia 
about 40 specimens, 33 of which were costata Miill., 5 pulchella Mill, 
and 2 excentrica St. In general V. pulchella, and also excentrica are 
found in comparatively larger numbers, or exclusively in more shaded 
and damp localities. 

Bifidaria armifera Say, several under a tree; but often it is found 
at exposed dry localities. 

Succinea avara Say, common. 

Succinea aetusa Lea, one specimen, nearly full grown, another 
rather small.— V. STERKI. 


PATE V. 


THE NAUTILUS, XIX. 


WALKER: NEW AMNICOLID4: 


SHE NAUTILUS. 


VoL. XIX. JANUARY, 1906. No. 9. 


NEW AND LITTLE KNOWN SPECIES OF AMNICOLIDAE. 


BY BRYANT WALKER. 


Most of the following species were found by Mr. A. A. Hinkley 
of Du Bois, Illinois, while on a collecting trip through Tennessee, 
Mississippi and Alabama, in the fall of 1904. A few others re- 
ceived from different sources have also been included. 


SoOMATOGYRUS SUBSTRIATUS, n, sp. Pl. 5, fig. 1. 

Shell subglobose, imperforate, shining, light greenish-yellow, lightly 
but distinctly striate, spire somewhat elevated, apex obtuse. Whorls 
4-41, those of the spire prominent and roundly shouldered ; body- 
whorl large and well rounded; suture deeply impressed. Aperture 
large, quite oblique, suborbicular, slightly emarginate at the base 
and somewhat roundly projecting at the juncture of the lip with the 
base of the columella; lip thin, projecting above and drawn back 
below. Slightly thickened within. Columella rather narrow, with 
a heavy rounded callous, which is thinner on the body-whorl and 
separated below by a narrow axial groove. 

Alt. (apex eroded) 6, diam. 4 mm. 

Types (No. 22870 Coll. Walker) from the Tennessee River at 
Florence, Ala. Also Tombigbee River at Columbus, Miss. Cotypes 
in the collections of the Academy of Natural Sciences and A. A. 
Hinkley. 

This is one of the largest species of the genus, being exceeded in 
size only by S. subglobosus. It is a well marked form, very much 
like a small Mluminicola nuttalliana Lea, in appearance, and is easily 


98 ; THE NAUTILUS. 


distinguished by its size, elevation of spire and striate surface. It 
occurred in considerable abundance at both localities. 


SoMATOGYRUS HUMEROSUS, n. sp. PI. 5, fig. 2. 


Shell small, subglobular, imperforate, pale-green, smooth, shining ; 
spire prominent, short, sub-conic with a small, obtuse apex. Whorls 
34, roundly shouldered above and flattened toward the suture, body 
inflated, somewhat flattened on the periphery and at the base ; suture 
deeply impressed. Aperture large, subcircular, slightly emarginate 
below. Lip thickened throughout, the callus rounding out to a sharp 
edge. Columella concave, with a heavy, flat callus which extends 
from one extremity of the lip to the other, and entirely covers the 
umbilicus. 

Alt. 4, diam. 3.75 mm. 

Types (No. 22372 Coll. Walker) from the Tennessee River at 
Florence, Ala. Cotypes in the collection of the Academy of Natural 
Sciences and A. A. Hinkley. 

The only species to which this ean be compared is the S. crassus 
from the Coosa. It differs, however, in being less solid and more 
globular, in the heavily shouldered whorls and the flattening of the 
periphery and base. 


SOMATOGYRUS QUADRATUS, n. sp. Pl. 5, figs. 8 and 4. 

Shell subgiobose, turbinate, imperforate, thick, solid, greenish-yel- 
low, smooth, except for fine lines of growth. Spire elevated, obtuse, 
whorls 34, strongly and roundly shouldered, flattened above and on 
the sides ; body-whorl large, quadrate, sometimes somewhat swollen 
above. Aperture rounded but not expanded. Columella with a 
very heavy, rather narrow, flattened callus which extends over the 
parietal wall and is separated below the axis from the body-whorl by 
a deep axial groove. Lip sharp, heavily thickened within ; its inser- 
tion on the parietal wall is below the periphery. 

Alt. (fig. 8, apex eroded) 4, diam. 3 mm. 

Alt. (fig. 4, apex eroded) 4.25, diam. 3.5 mm. 

Types (No. 22373 Coll. Walker) from the Tennessee River, Flor- 
ence, Ala. Also Shoal Creek at the same place. Cotypes in the 
collections of the Academy of Natural Sciences and A. A. Hinkley. 

This species is closely allied to S. georgianus, but differs uniformly 
in being smaller and imperforate, in the flattened, heavily-shouldered 
whorls and smaller aperture. As shown by the figures there is con- 


THE NAUTILUS. 99 


siderable variation in the shape, some examples being almost sub- 
cylindrical, while others are more inflated toward the shoulder. 
This is perhaps a sexual difference, and has been noticed im one or 
two other species. 


SoMATOGYRUS sTRENGI Pilsbry and Walker, n. sp. PI. 5, fig. 5. 


Shell small, globose, umbilicate, pale green, smooth, with very fine 
lines of growth. Spire short, depressed, flattened at the apex. 
Whorls 3, convex, slightly flattened toward the suture, which is well 
impressed; body-whorl large, inflated. Aperture broadly ovate, 
angled above and rounded below. Lip sharp, somewhat roundly 
expanded at its juncture with the base of the columella. Columella 
concave, narrow ; columellar callus flattened, extending over the 
parietal wall, separated below by a well-defined axial groove. 

Alt. 3, diam. 3 mm. 

Types (No. 22374 Coll. Walker) from the Tennessee River, Flor- 
ence, Ala. Also Shoal Creek at the same place and Bridgeport, Ala. 
Cotypes in the collections of the Academy of Natural Sciences and 
A. A. Hinkley. This very distinct little species was found in con- 
siderable abundance at both localities at Florence. It is the Ten- 
nessean analogue of the Coosan S. umbilicatus, but differs in the 
depressed spire, more inflated form, flattened columella and axial 
groove. 

A single immature example of this species from Bridgeport, Ala., 
received from Mr. L. H. Streng, of Grand Rapids, Mich., has been 
in the collection of the Academy for several years, but has been 
withheld from publication until further material could be had. Dr. 
Pilsbry and myself unite in naming this interesting form after Mr. 
Streng, who for more than fifty years has been actively interested in 
conchology, and who is the last survivor of the group of collectors 
that for many years made Grand Rapids the scientific centre of the 
State. 


SOMATOGYRUS BIANGULATUS, n. sp. PI, 5, fig. 6. 

Shell small, obtusely-conic, turbiniform, umbilicate, light greenish - 
yellow, smooth, lines of growth very fine, spire elevated, flattened at 
the apex. Whorls 34, regularly increasing, angularly shouldered 
above, flattened above and below the shoulder; body-whorl moder- 
ately large, biangulate, shoulder flattened, sloping obliquely from the 


100 THE NAUTILUS. 


suture to the superior angle, which is quite obtuse, periphery cari- 
nate, the whorl being almost straight between the two angles, 
obliquely flattened below. Aperture moderate, subcircular; slightly 
modified by the angle of the body-whorl, and slightly expanded at its 
juncture with the columella. Columella very narrow, rounded ; 
columellar callus: not very heavy, thin and transparent on the 
parietal wall. 

Alt. 3, diam. 2.75 mm. 

Tennessee River, Florence, Ala. Types (No. 22376 Coll. Walker). 
Cotypes in collection of A. A. Hinkley. 

Only two specimens of this remarkable little species were found. 
But it is so entirely distinct from all the known species that I have 
no hesitation in describing it. With the exception of S. aldricht, 
herein described, it is the only carinate species known. 


SoMATOGYRUS EXCAVATUS, n. sp. PI. 5, fig. 7. 


Shell small, globosely-conic, imperforate, rather thick, solid, pale 
green, smooth, lines of growth very fine. Spire short, conic, obtuse ; 
whorls 34; those of the spire convex, with a well-impressed suture ; 
body-whorl rather inflated, convexly rounded. Aperture subcircular, 
slightly angled above and broadly rounded below. Columella very 
concave, with a moderately wide, heavy, flat callus, which extends 
over the parietal wall, and below the axis is separated by a wide 
axial groove. Lip simple, but thickened within and somewhat 
emarginate below. 

Alt. 84, diam. 3 mm. 

Shoal Creek, Florence, Ala. Types (No. 22378 Coll. Walker). 
Cotypes in the collections of the Academy of Natural Sciences and 
A. A. Hinkley. <A solid little species, distinguished by its globosely 
conic shape, thickened lip and axial groove. 


(To be continued.) 


A NEW TERTIARY PLANORBIS. 
BY T. D. A. COCKERELL. 


PLANORBIS FLORISSANTENSIS, 0. Sp. 
Diameter about 22 mm., flattish, with about 44 slightly convex 
whorls, the last rapidly enlarging, much in the manner of P. albus, 


THE NAUTILUS. 101 


Miiller; color very pale ; sculpture weak, consisting of fine lines of 
growth crossing the whorls somewhat obliquely, the more distinct 
ones on the last whorl occurring at rather regular intervals, some 55 
micromillemeters apart. Diameter of last whorl about three times 
that of penultimate ones. 

Hab.—Oligocene beds at Florissant, Colorado, collected by Judge 
J. Henderson and Dr. F. Ramalley, of the University of Colorado, 
1905. The exact locality is southwest of Florissant, in plant-bearing 
beds, containing among other things /lanera longifolia, Lx. Onthe 
same slab as the Planorbis is a small Sphaertum, badly crushed and 
broken. The Planorbis is not very well preserved, but I believe that 
it will be readily recognized from the above description. Of the 
species belonging to the same geological period, it is most like P. 
zqualis White, from Wyoming ; but that species appears to be more 
convex, and, with the same number of whor's, is at least twice as 
large. I take it that P. florissantens/s is a Gyraulus, which P. equalis 
does not seem to be. It is rather curious that several of the fossil 
species of Planorbis found in America remind one rather of European 
forms, than of those living in this country to-day.* Possibly the 
dominant Planorbis of modern America may represent in part an in- 
vasion from the south, which has displaced some of the older types. 

Scudder (Tertiary Insects of N. America, p. 31), mentions a 
Planorbis from Florissant, probably the species now described. 


AN ORDOVICIAN GASTROPOD RETAINING COLOR MARKINGS. 
BY PERCY E. RAYMOND. 


While examining some small fossils collected in the Chazy, (lower 
Ordovician), limestone at Valcour Island, New York, the writer was 
surprised to find two small specimens of Straparollina harpa Hudson, 
which retain with remarkable distinctness the lines of color mark- 
ings and possibly some trace of the original colors. The specimens 
are very small, the larger being less than one quarter of an inch in 
diameter. The body color of the shells is a light yellow, which is 
the prevailing color of the fossils in the particular stratum from which 
these specimens were taken, Around the top of the body-whorl, ad- 


* Thus, P. cirratus White is extremely suggestive of P. vortex and P. spiror- 
bis; other species recall P. contortus, 


102 THE NAUTILUS. 


joining the suture, is a narrow, brownish gray band. Below it isa 
band of the yellow body color, and then, about the middle of the 
whorl, another brownish-gray band, more deeply colored than the 
one on the top of the whorl. Below this principal band is another 
light yellow band, and adjoining the umbilicus, the color is orange. 
The position of these bands is shown on the accompanying figures. 


Straparollina harpa Hudson, X 10. 


The yellow color is undoubtedly due to the iron of the decomposed 
limestone from which the fossils were obtained, but the brown tints 
may give some hint of the original coloring of the revolving bands, 

These are probably the oldest shells on which color markings have 
been observed, dating as they do, from Middle Chazy times, (Ma- 
clurites magna fauna). The oldest instances of color preservation 
previously recorded in America are those reported by Professor O. 
C. Marsh, and Dr. Theodore G. White. Professor Marsh described 
(Proc. Am. Assoc. Adv. Sci. xvi, p. 326, 1868) certain markings 
on the shell of a specimen of Hndoceras (Cameroceras) proteiforme 
Hall from the Trenton formation in New York. Dr. White men- 
tions (Trans. N. Y. Acad. Sci. vol. xv, p. 85, 1896) two specimens 
of Holopea symmetrica Hall from the Black River formation of the 
Rathbone Brook, N. Y., section, which preserved the original shell 
material, and one showed the iridescent lustre of pearl. 

Quite a number of cases of color preservation have been recorded 
from the Devonian and Carboniferous, but examples from the older 
formations are exceedingly rare. 

Carnegie Museum, Pittsburgh, Pa. 


THE NAUTILUS. 103 


SHELLS OF PRINCE EDWARD ISLAND. 


BY GEO. H. CHADWICK. 


The following list has been compiled from data supplied by Mr. 
Charles Ives, of Miscouche, an intelligent resident student of the 
natural history of Prince Edward Island. The asterisk indicates 
that specimens have been examined by me. 

* Urosalpinx cinerea Say. Northumberland Strait, deep water, 
quite rare, but large. 

* Purpura lapillus Linn. Carleton Head, plentiful. 

Nassa trivittata Say. Northumberland Strait, rocky bottom in 
deep water. 

Ilyanassa obsoleta Say. Bedeque Bay, very abundant on mud flats. 

* Lunatia heros Say. Bedeque Bay and Northumberland Strait, 
abundant. 

* Lunatia triseriata Say. Bedeque Bay, common. (The fine 
suites of these two forms fully support Mr. Ives’ contention that they 
are distinct, as maintained by many writers, notably Dr. Gould.) 
The dead shells of Lunatia heros usually contain * Eupagurus 
acadianus Benedict. 

* Crepidula fornicata Say. Bedeque Bay, common. 

* Crepidula plana Say. Bedeque Bay, common in Natica shells. 

* Turbonilla interrupta Totten, var. fulvocincta, Jeffreys. Bedeque 
Bay, very rare. 

Litorina littorea Linn. Bedeque Bay, very abundant. 

Litorina palliata Say. Carleton Head, Northumberland Strait. 

* Turnatina canaliculata Say. Bedeque Bay, not common. 

Planorbis trivolvis Say. ‘* Wright’s mill-pond.”’ 

* Ensis directus Conrad. Everywhere plentiful in sandbanks and 
shoals. 

*Cyrtodaria siliqua Spengler. Off Richmond Bay, common in 
codfish. 

* Mya arenaria Linn. Bedeque Bay, abundant. 

* Pandora gouldiana Dall. Bedeque and Richmond Bays, scarce. 

* Spisula solidissima Dillw., var. curta Gould (?). Bedeque Bay, 
not very numerous ; formerly abundant. 

Venus mercenaria Linn. Bedeque and Richmond Bays, plentiful. 

* Petricola pholadiformis Lamarck. Bedeque Bay, very rare. 

* Anodonta cataracta Say. Brook south of Bedeque Bay, common 


104 THE NAUTILUS. 


* Anodonta marginata Say. With preceding and at Barlows, 
common. 

* Mytilus edulis Linn., var. Bedeque and Richmond Bays, on 
oyster beds. 

Modiolus modiolus Linn. Northumberland Strait, rare and in 
deep water. | 

* Modiolus demissus Dillw., var. plicatulus Lam. Abundant in all 
salt-marshes. 

Ostrea virginica Gmel. Bedeque and Richmond Bays, very 
abundant. 

Pecten gibbus L., var. borealis Say. Richmond Bay and North- 
umberland Strait, not very abundant. : 


NOTE ON SOME FORGOTTEN MOLLUSK-NAMES. 


BY WILLIAM H. DALL. 


In preparing my report on the land and fresh-water mollusks of 
Alaska and adjoining regions for the Harriman Expedition series 
(now published), I searched the available literature for data on the 
nomenclature of Planorbis, and supposed I had gathered references 
to all names which had been applied to members of that group above 
the rank of species. A chance remark by von Martens caught my 
eye while searching the Malakozodlogische Blatter a few days ago 
for something else, and following up the clue, I came upon a group 
of names given by Benson in 1841, but not published until 1855, 
which do not occur in any nomenclator I have been able to examine. 
As it seems eminently desirable that such mavericks should be duly 
recorded, even when they do not supersede others more familiar, I 
take that duty upon myself. 

In the Journal of the Asiatic Society of Bengal, volume xxiv, 
part 2, 1855, is published a report on the shells of Chusan which had 
been prepared in 1841, but never before put in type. It contains 
certain new generic names which have found their way into the 
nomenclators, viz., Incilaria, Batillaria and Laguncula. In addi- 
tion to these there is a revision of the subdivisions of the genus 
Planorbis, to which I have never seen any reference, and von Mar- 
tens seems to have been the only person who has ever cited any of 
the names there given, and he mentions only Helicorbis. 


THE NAUTILUS. 105 


They are as follows: Helicorbis Benson, subgenus of Planorbis, to 
which are referred Pl. nitidus of Gray’s Turton, Pl. hemispherula, 
and Pl. umbilicalis Benson ; this group is equivalent to Hippeutis 
Agassiz, 1837. Trochorbis Benson is based on Pl. trochoides Ben- 
son, which is a typical Segmentina, well figured by Hanley and 
Theobald in the Conchologia Indica, p. 18, pl. xxxix, figs. 4-6, 1876. 
As Segmentina dates from 1817, it follows that Benson’s name is 
synonymous. Lastly Omalodiscus Benson is proposed ostensibly for 
the group called by Swainson Spirorbis (1840, not Sptrorbis Daudin, 
Vermes, 1800), but the species mentioned under it belong respectively 
to Tropidiscus Stein, 1850, and Gyraulus Agassiz, 1837. If we re- 
gard the contents of the group as wrongfully referred to it and take 
the name merely as a substitution for the preoccupied Sprrorbis (of 
which the type was Pl. rotunda/us Poiret), it may be applied toa 
valid section of Planorbis, but if we regard the contents only, the 
name must be considered a synonym. -Under Helicorbis the only 
species for which a figure is cited is Pl. nitidus of Gray’s Turton 
(= fontanus Lightfoot) which was already the type of Agassiz’s 
Hippeutis, 1837. The others also belong to Hippeutis, but approach 
more nearly in form to Drepanotrema Crosse and Fischer, 1880. 

While referring to this paper of Benson’s it may be mentioned 
that his genus Laguncula, which is described in it, and has been 
generally referred to the Assimineide, but I believe never figured, 
resembles a very young thin-shelled Zanatia, with a thin horny 
pauci-spiral operculum recalling that of Chondropoma. On the 
whole I suspect it more nearly approaches Cremnoconchus than 
Assiminea, and may eventually be referred to the Litorinide. It 
cannot properly be referred to the Viviparide, where it was placed 
by H. and A. Adams, and has none of the shell characters of 
Assiminea. ‘The aperture, while slightly expanded, does not show, 
in specimens sent from China by Hungerford, anything which may 
be strictly termed a reflected peristome, and there is no thickened 
ledge inside the mouth or shelly deposit on the operculum. 


SAMUEL HART WRIGHT. 


We regret to announce the death of Dr. Samuel Hart Wright, 
father of Mr. Berlin H. Wright. Doctor Wright was born Febru 


106 THE NAUTILUS. 


ary 18, 1825, and died at his home in Penn Yan, N. Y., October 7, 
1905. . 

«« At the age of twenty, while struggling to gain a livelihood from 
the soil, the subject of this sketch had the fires of educational en- 
thusiasm lighted. Two carpenters employed on the farm carried 
books on astronomy and mathematics in their chests and brought 
them out nights for study and discussion. Participation in this even- 
ing and noon-hour work resulted in a fixed determination by the boy 
to possess books of this character and to master them. Books ac- 
companied him into the field; when the korses were resting new 
problems were fixed in the mind and when following the horses the 
solutions were worked out mentally. 

“When added responsibilities began with wife and family, in- 
creased effort was put forth and directed towards mathematical as- 
tronomy. In 1848 after three years of close application, the first set 
of astronomical tables was brought out, but no purchaser found. 
This was repeated for 1849 and again for 1850, when they were sold 
tothe New York Tribune—the first ‘ Whig Almanac.’ Thereafter the 
business increased. In 1876 his son, Berlin H. Wright succeeded to 
this business, and other branches of science claimed increased atten- 
tion, especially microscopy. Meanwhile, he studied medicine and 
was a practitioner until 1870, when deafness came upon him. 

“The study of botany was begun in 1856 and he became an au- 
thority in this branch, as the great herbarium he left testifies. Dur- 
ing the last two decades, the study of pure mathematics claimed most 
of his time, though he did much in surveying. In pursuit of recrea- 
tion, with his son and grandsons he became enthusiastic in geology 
and conchology. 

«A large library of standard reference works along all these lines 
and in general literature was brought together. Among these he 
spent his last years and was happy.” 

Mr. Wright contributed a number of interesting articles on the 
Unionide of the Southern States, among which may be mentioned: 
“ Notes upon the Unionide of Southern Florida,’”’ (The Concholo- 
gist’s Exchange, vol. ii) ; ‘‘ Unionide of Georgia, Alabama, South 
Carolina, and Louisiana in South Florida,” (Tue Nauritus, vol. 
iv), and “ Contribution to the Knowledge of United States Uni- 
onide,’’ (THE NavurI.uvs, vols. x and xi). In the latter paper seven 
new species were described. C. Wad. 


THE NAUTILUS. 107 


NOTES. 


CANADIAN OYSTERS.—It is reported from Halifax that there is 
danger that the famous oyster-beds of Prince Edward Island, which 
supply the Malpeques, the great favorites in the leading Canadian 
markets, will be wholly exhausted in ten years at the present rate of 
fishing. 

This is in part due to the fact that nearly all the Canadian oysters 
are shipped in the shell. In the United States the fishermen shell 
a great many of the oysters and return the shells to the beds, which 
is a distinct aid to propagation. 

The Canadian government is exerting itself in restocking the 
oyster beds which, however, are being depleted rapidly.— Boston 
Globe. 

PALUDESTRINA SALSA, Pils., described in the December Naut- 
ILUSs, occurs abundantly at Branford, Conn. At one locality, 3 miles 
from the Sound where a brook enters the marsh it occurs on stones 
and decaying vegetable matter. The form here is more slender than 
the type. Another locality reveals itin ditches in the marsh near the 
railroad. Here it is larger than the Cohasset form, and it occurs on 
the vegetation floating in the ditch Henry W. WINKLEY. 


Norte on Virrina PrEirrert DesHAreEs. ‘This species is cited 
in Pfeiffer’s Mon. Heliceorum Viventium, vol. iii, p. 7, 1853. Idid 
not look it up further, but added the date, which Dr. Pilsbry’s criti- 
cal eye detected as improbable, under the impression that the citation 
referred to Ferussac’s “* Prodrome”’ of 1822. On a second inspec- 
tion I suspect that Pfeiffer’s ‘* Fer. Lim.” refers to the “ Histoire des 
Moll. Terrestres,”’ a work not accessible to me here, but to which 
Deshayes made contributions, 1839-41.* Deshayes gives exactly 
the same references as Pfeiffer, in his MS. catalogue of Vitrina in 
my possession, and as the name had entered into literature a second 
time, as early as 1553, there can be no doubt as to its being prior to 
Newcomb’s pfeiffert of 1861. 

I may add for the benefit of those who may like to make correc- 


* The name Vitrina pfeifferi was proposed by Deshayes in Férussac’s Histoire, 
ii, p. 9674, 1851, in the text under V. angularis, for some figures in Férussac, 
plate 8 F, pp. 18-22, of a Vitrina supposed to be new, but which Deshayes had 
never seen. There is no statement of locality. It was omitted from the index 
of the work, and has not been recognized by any subsequent author. The figures 
look like almost any Vitrina.—Epb, 


108 THE NAUTILUS. 


tions in their private copies of the “‘ Land and Fresh Water Mol- 
lusks of Alaska,” that, since it was stereotyped, it has come to my 
knowledge that Benson proposed some new names for subdivisions of 
the genus Planorbis as early as 1855, which he seems afterward to 
have abandoned and which have not been included in the Nomencla- 
tors. They were published in the Journal of the Asiatic Society of 
Bengal, and two of them appear to be prior to names adopted by me — 
in the work above cited. Omolodiscus Benson, will therefore take 
the place of Paraspera Dall (1. ¢., p. 82), and Helicorbis Benson, of 
Drepanotrema Crosse and Fischer, 1880.—Wm. H. Datt. . 


PUBLICATIONS RECEIVED. 


Some West AMERICAN SHELLS, including a new variety of 
Corbula luteola Cpr., and two new varieties of Gastropods. By 
Mrs. M. Burton Williamson. (Bull. of the South. Cal. Acad. of 
Sciences, Vol. iv, No. 8, p. 118.) This interesting paper adds sev- 
eral species to Prof. Keep’s list, making the number of species to 
date from the West Coast 1,377. Corbula luteola var. rosea, Drillia 
moesta var. maculata, and Oalliostoma canaliculatum var. parvum, 
are described as new. 


On aA Lance EXAMPLE OF MEGALATRACTUS ARUANUS L. By 
Charles Hedley. (Records of the Australian Museum, Vol. vi, p. 98, 
pl. 21 and 22.) This large shell, which the author says ‘‘ appears 
to be the largest recent Gastropod,” has a weight of ten pounds 
twelve ounces, with a length of 222 inches, the loss of the styliform 
embryo, etc., curtailing its total length by # of an inch. We beg to 
state that this Australian giant has a rival on our Florida coast, 
Fasciolaria gigantea Kiener. I have seen a living specimen of this 
shell measuring 23 inches in length. Mr. Chas. T. Simpson, in his 
‘¢ Contributions to the Mollusca of Florida” (Proc. Davenport Acad. 
Nat. Sci., v, 51), says: ‘* On the Keys I have seen dead shells two 
feet in length. The largest Gastropod in the world.” C. W. J. 


Mo.tiuscs AND Bracuiopops OF BALLYNAKILL AND BOFIN 
Harpors, Country Gatway, and of the Deep Water off the West 
and Southwest Coasts of Ireland. By E. R. Sykes. (Ann. Rep. 
Fish., Ireland, 1902-03, Pl. ii, App. iii [1905].) An interesting 
faunal list, with copious notes on the various species, 


Pee NAUTILUS. 


Vor. XIX. FEBRUARY, 1906. 


VITREA RHOADSI AND SUCCINEA RETUSA MAGISTER. 


BY HENRY A. PILSBRY. 


Illustrations of the two species named below have recently been 
prepared for Mr. Bryant Walker’s hand book 
of the Mollusca of Michigan. We are in- Fie. 1. 
debted to Mr. Walker for the use of these 
figures here, in advance of his own _ publi- 
cation. 


ViITREA RHOADS! Pils. Fig. 1. 


The figures represent one of the cotypes 
from White Pond, Warren Co., N. J. (Nav- 
TILUS, xii, 101). Mr, Walker has extended 
the range by identifying the species from 
Michigan, Ontario, Virginia, and other 
places (Navuritus, xiv, 8). Specimens 
have been sent from Buckfield, 
Oxford Co., Maine, by Mr. 
John <A. Allen. 


Fig. 2. 


SUCCINEA RETUSA MAGISTER 

Pils. Fig. 2. 

One of the cotypes from Rock 
Island, Ill., is here figured. This fine, 
large form attains the size of S. concordialis. 
The latter differs from it by having a very full, 
sack-like base. Described in NaurTiuuvs, xii, 
103. 


110 THE NAUTILUS. 


SHELL-BEARING MOLLUSCA OF FRENCHMAN’S BAY, MAINE. 


BY DWIGHT BLANEY. 


In addition to the one hundred and twenty-seven species and five 
varieties of Mollusca collected in Frenchman’s Bay, Maine, by the 
writer during 1901-4 (a list of which was published in the Proceed- 
ings of the Boston Society of Natural History, vol. 32, no. 2, pp. 23- 
41, 1904), the following six species (one of which is new to science) 
and two varieties were added during the summer of 1905, making a 
total of one hundred and thirty-three (133 plus 7 varieties) species 
and seven varieties from this locality. 


Astarte quadrans Gould. 


One valve, identified by Dr. W. H. Dall, dredged off Great Head, 
Tronbound Island. 


Astarte portlandica Mighels. 

Many valves, and a few live specimens dredged off Heron Island 
on shelly bottom, 10 fath. From study of these specimens Dr. Dall 
writes us that he now thinks this “a good species as described by 
Mighels in 1843, provided a larger series of ‘ A. quadrans’ than I 
have been able to consult does not show gradations between the two. 
species.” 


Cochlodesma leanum Couthouy. 


Two valves dredged off Seal Cove, Ironbound Island, about 15 
fath. This shell which is commonly found much further south will 
probably be found alive in the warmer waters up the bay. 


Sipho stimpsoni Morch, var. Kiratulus Verrill. 


A few have been dredged the past few years at the same stations 
as the ‘ stimpsonti,”’ but were only lately identified for us by Prof. 
Verrill and Miss Bush. They were all young specimens. 


Columbella (Astyris) dissimilis Stimpson. 


Columbella zonalis Linsley. 
Two specimens dredged off the Spar Landing, Ironbound Island, 
15 fath., shelly bottom, October, 1905. One alive. 


Crepidula fornicata (Linné). 


Found on stones of Soward’s Island at very low water. Verrill, 


THE NAUTILUS. 111 


U. S. Fish Comm., p. 650, 1871-72, says: “ Has not been found 
east of the Kennebec River, Maine. 
Solariella obscura (Couth.), var. bella Verk. 

Machaeroplax obscura var. bella Verrill, Trans. Conn. Acad. v, 
p- 531. A few dredged off Ironbound Island, and identified for us 
by Prof. Verrill and Miss Bush, ‘‘ Variety ‘bella’ is the pre- 
dominant form at Eastport, Me., and in the Bay of Fundy.”— 
Verrill, op. cit. 

Tonicella blaneyi Dall. 

For description see Pro. Biol. Soc., Wash., vol. xviii, p. 203, and 
Navrivs, vol. xix, no. 8, p. 88, pl. iv, 1905. Dredged near 
station 22, in about 20 fathoms. 

The following species, whose occurrence in Frenchman’s Bay was 
based on the finding of dead specimens or vaives, have since been 
found alive: 

Thracia truncata Mighels and Adams. 


Pandora (Clidiophora) gouldiana Dall. Off Ryefield Point and 
Heron Island; 10 fathoms. 

Ensis directus (Conrad). Off Ryefield Point, 10-15 fathoms ; 
shelly mud, Our live specimens usually cut in two by the dredge. 

Velutina zonata Gould. Off Ryefield Point, Aug., 1905. 

Marsenina glabra (Couth.) Station 19, 20 fathoms. Verrill, op. 
ceit., p. 5, 7, says: “ This species is not uncommon at Eastport, Me.” 


DESCRIPTION OF NEW SPECIES OF ACHATINELLIDAE FROM THE 
HAWAIIAN ISLANDS. 


BY D. D. BALDWIN. 


Partulina flemingi, n. sp. 

Shell dextral, minutely perforated, somewhat solid, elongately 
conical, apex acute; surface shining, striated with delicate incre= 
mental striz, and under a lens exhibiting very close delicate decus- 
sating spiral lines which extend almost to the apex. Color white or 
brownish-white, with two dark-brown bands, one bordering the suture, 
and one at the periphery continued on the spire just above the suture ; 
in many examples the sutural band is absent. Whorls 6, narrowly 


112 THE NAUTILUS. 


margined above, somewhat convex; suture moderately impressed. 
Aperture oblique, oval, white, the outside band visible within. Peri- 
stome acute, slightly thickened within, dark-brown, the columellar 
margin reflexed over the minute perforation, Columella terminating 
in a strong, plaited, pinkish-brown, projecting tooth. 

Length, 19; diam., 9 mm. 

Habitat, Nahiku, East Maui. 

Animal when extended in motion as long as the shell. Mantle 
intensely black with a narrow white band encircling the outer edge. 
Foot above and below very light-brown, granulated above. Tentacles 
long and slender, slate color, 

There occurs also a pure-white form of the shell without any bands. 

We dedicate this shell to Mr. D. T. Fleming of Maui, to whom 
science is indebted for its discovery. 


Partulina lemmoni, n. sp. 

Shell sinistral, imperforate, solid, acuminately ovate conic, apex 
acute; surface shining, striated with fine growth-lines, and under a 
lens showing close, delicate, decussating spiral strie ; nuclear whorls 
smooth. Color white, variously striped with numerous dark-brown 
lines and bands, the constant ones being two broad bands, one en- 
circling the base, and the other at the periphery, continued on the 
middle whorls above and below the suture, obsolete above; apex white. 
Whorls 7, narrowly margined above, convex; sutures deeply im- 
pressed. Aperture oblique, oval, white, exhibiting the outside color- 
ing within. Peristome acute, thickened within, narrowly reflexed. 
Columella terminating in a long, flexuous, white plait. 

Length, 23; diam., 114 mm. 

Habitat, Nahiku, East Maui. 

Animal in motion as long as the shell. Mantle brownish-black, 
mottled with white streaks, with a broad yellowish-brown border 
somewhat interrupted. Foot above and below very light-brown. 
Tentacles slate color. 

Named in honor of Mr. N. E. Lemmon, of Nahiku, who discov- 
ered it. 


Partulina carnicolor, n. sp. 


Shell dextral, minutely perforated, solid, acuminately oval conic, 
apex subacute; surface lusterless, marked with delicate incremental 


THE NAUTILUS. 113 


strie,and under a lens exhibiting a fine pattern of decussating spiral 
strie; nuclear whorls faintly decussated. Ofa uniform brown color, 
a narrow white line below the periphery, which enters the aperture, 
and a very narrow white line traversing the suture. Whorls 6, 
slightly marginate above, a little convex; suture lightly impressed. 
Aperture oblique, oval, livid-white, showing the exterior coloring 
within. Peristome acute, expanded, columellar column broadly 
reflexed. Columella white, terminating in a well developed, flexu- 
ous fold. 

Length, 25; diam., 14 mm. 

Habitat, Nahiku, East Maui. 


Partulina kaaeana, n. sp. 


Shell sinistral, subperforated, solid, globose, with a conical spire, 
apex subacute; surface rather lusterless, covered with rather coarse, 
wavy growth-lines, and under a lens exhibiting close and delicate de- 
cussating spiral lines; nuciear whorls faintly decussated. Color ashy- 
brown, with a light brown band just below the periphery and enter- 
ing the aperture; whole surface covered with minute longitudinal 
white flecks or streaks; apex tessellated white and brown. Whorls 
6, not margined above, flatly convex; suture Jightly impressed. 
Aperture a little oblique, oval, livid-white, showing the outside color- 
ing within. Peristome acute, slightly thickened within, expanded, 
columellar margin reflexed, light brown on both face and the reverse. 
Columella white, terminating in a strong, plaited, projecting tooth. 

Length, 21; diam., 13 mm. 

Habitat, Mt. Helu, 4000 ft. alt., West Maui. 

Animal extended in motion longer than the shell. Mantle brown- 
ish-black, with outer edge bordered witha narrow white line. Foot 
below and side light slate color. Head above and tentacles dark 
slate and granulated. 

This shell was found on a mountain-peak quite isolated from the 
main mountain mass of West Maui. We dedicate it to Mr. W. F. 
Kaae, who seems to have been the only one in quest of shells who has 
ventured to climb this lonely peak. He found the shell in company 
with Perdicella ornata Ne. a species supposed long since to have be- 
come extinct. 

( To be continued.) 


114 THE NAUTILUS. 
NEW AND LITTLE KNOWN SPECIES OF AMNICOLIDAE. 
BY BRYANT WALKER. 


SOMATOGYRUS TENNESSEENSIS n. sp. Pl. 5, fig. 8. 


Shell subglobose, perforate, greenish-yellow, smooth with fine lines 
of growth. Spire short, obtuse; whorls 34, those of the spires de- 
pressed, rounded, with an impressed suture; body-whorl large, in- 
flated, regularly rounded. Aperture large, transversely expanded, 
sub-triangular, broadly angled above, and somewhat flattened below. 
Columella narrow with a moderately heavy, rounded, callus, which 
extends over the parietal wall and, below the minute umbilicus, is 
separated by a wide axial groove. Lip thick and sharp. 

Alt. 43, diam. 4.25 mm. 

Shoal Creek, Florence, Tenn. Types (No. 22377 Coll. Walker). 
Cotypes in the collections of the Academy of Natural Sciences and 
A. A. Hinkley. 

This species was at first taken to be a form of Conrad’s S. 
pumilus. But on removing the animal it was found to differ so 
radically in the character of the columella as to forbid its reference 
to that species. Compared with the specimens of that form from 
Cahatchee Creek,#Ala., while of a similar contour, it differs in being 
larger, thinner, with a more expanded aperture, and in the narrow, 
rounded columella. 


SoOMATOGYRUS ALDRICHI, n.sp. PI. 5, fig. 9. 

Shell subglobular, perforate, greenish-yellow, smooth, with very 
fine, but distinct, lines of growth. Spire very short, depressed, ob- 
tusely rounded. Whorls 34, those of the spire slightly convex with 
an impressed suture ; body-whorl very large, inflated, with a strong 
carina in front below the periphery, which emerges from below the 
upper insertion of the lip, and continues about two-thirds around the 
whorl, where it gradually disappears, not reaching the lip ; the upper 
portion of the whorl above the carina is regularly, but not strongly 
convex, but below it is obliquely flattened toward the impressed base 
of the axis. Aperture large, subcircular, obtusely angled above and 
regularly rounded below. Columella concave, with a broad, heavy, 
flat callus, which extends over the parietal wall, and is separated be- 
low the perforation by a broad axial groove. Lip sharp, thickened 
within as it approaches the base of the columella 


THE NAUTILUS, 1Ld 


Alt. 34, diam. 34 mm. 

Types (No. 21944 Coll. Walker), from the Coosa River, Chilton 
Co., Ala. Also Catawba River, Ala. Cotypes in the collection of 
T. H. Aldrich. A single specimen of this extraordinary species was 
detected in a set of S. georgianus from the Catawba River, in the 
Lewis collection, when my former paper on Somatogyrus (Naut., 17, 
p- 140), was in preparation. But it was of such unusual form that it 
seemed more likely to be a monstrosity than a distinct species. Re- 
cently, however, Mr. T. H. Aldrich has submitted a set from the 
Coosa, which are remarkably uniform, and leave no doubt but that it 
is entitled to specific recognition. The discovery by Mr. Hinkley of 
another but very distinct carinated form in the Tennessee River 
at nearly the same time is an interesting coincidence, and, like the 
similar case of S. umbilicatus and strengi, affords a striking example 
of evolution along parallel lines in two different drainage systems. 


SomMaToGyRus Pumitus (Conrad). PI. 5, fig. 10. 


Conrad’s original description of this species is very meagre and no 
dimensions are given. His figure subsequently published in the 
American Journal of Conchology V, Pl. 15, fig. 5, is on too small a 
scale to be entirely satisfactory. Fortunately, however, his type has 
been preserved in the collection of the Philadelphia Academy of 
Natural Sciences, and until now has been the only specimen known. 
Recently Mr. T. H. Aldrich has submitted a small form from 
Cahatchee Creek, Shelby Co., Ala., which seemed to be very similar. 
Dr. Pilsbry has kindly compared them with the type and writes 
“they are not quite pumilus, as the columella is decidedly too wide 
and calloused.” A careful comparison made during a recent visit to 
Philadelphia, however, satisfied us both that these specimens could 
not be distinguished from Conrad’s species. In the absence of topo- 
types, it seems desirable to describe and figure the Cahatchee form for 
comparison with the new species that have recently been described 
from the same region. 

Shell small, sub-globular, imperforate, thick, solid, pale-green, 
becoming somewhat yellowish towards the aperture, smooth, with 
very fine growth-lines. Spire depressed, obtuse, whorls probably 
3-34 (apex eroded), those of the spire slightly convex with a well 
impressed suture; body-whorl large, inflated, regularly rounded. 
Aperture subcircular, broadly angled above, regularly rounded below, 


116 @hilE NAUTILUS. 


columella concave with a heavy, broad, flat callus which extends over 
the parietal wall, and separated below the axis by a rather wide axial 
groove. Lip simple but thickened within, especially below. 

Alt. 34, diam. 34 mm. 

This species is distinguished from other described species with an 
axial groove by its small size and sub-globular shape. It is most 
closely related ‘to S. tennesseensis, but differs in being smaller, more 
globular; more solid, smaller aperture, narrower axial groove, and 
broad, Hat columella. S. ercavatus, which is about the same size, is 
too entirely different in shape to be confounded with it. 


SOMATOGYRUS PENNSYLVANICUS Walker. PI. 5, figs. 17 and 18. 


In the Spring of 1905, I collected a few specimens of this species 
under stones at the upper end of Island Park in the Potomac River 
at Harper’s Ferry, Va. The occurrence of this species in a different 
drainage system is of interest. The shells are rather larger than 
those of the original lot from. Columbia, Pa., and exhibit the two 
forms noticed in S. virginica and quadrata. The dimensions of the 
specimens figured are: 

Fig. 17, alt. 3.75, diam. 2.5 mm. 

Fig. 18, alt. 4, diam. 3 mm. 


PYRGULOPSIS MISSISSIPPIENSIS (Pils.). Pl. 5, fig. 15. 

Pyrgula scalariformis mississippiensis Pils., American Naturalist, January, 
1886, p. 75. 

Pyrgulopsis mississippiensis Call and Pilsbry, May, 1886. 

One of the most interesting discoveries made by Mr. Hinkley dur- 
ing his trip was the finding of this species living in great numbers in 
Shoal Creek near Florence, Ala. This is the first time the species 
has been found alive ; the original specimens having been all dead 
shells. We are thus enabled to supply two particulars in which the 
original description was necessarily defective. The epidermis is of 
a clear yellowish-horn color and the operculum agrees with the 
generic diagnosis in being ‘‘ ovate, thin, corneous, spiral, with the 
polar point well forward and approximating the columella.’? The 
apices of all the mature Shoal Creek specimens were eroded. 


AMNICOLA PILSBRYI, n. sp. Pl. 5, figs. 11 and 16. 


Shell very small, umbilicate, globose, conic; light horn-colored, 


THE NAUTILUS. DZ 


smooth, with faint growth-lines; spire somewhat elevated, apex ob- 
tuse ; whorls 34-4, regularly rounded and somewhat inflated ; body- 
whorl large; suture well impressed. Aperture subcircular, slightly 
angled above; peristome nearly continuous, being appressed to the 
body-whorl for only a short distance. 

Fig. 11. Alt. 2.25, diam. 2 mm. 

Fig. 16. Alt. 2.25, diam. 1.75 mm. 

Types (No. 3354 Coll. Walker) from Rockford, Ills. Also from 
Meyer’s Lake, Canton and the Ohio Canal, New Philadelphia, O. 
Cotypes in the collection of the Academy of Natural Sciences. 

This little species in years past must have been largely distributed 
both as Lyogyrus grana and Amnicola parva, as I have received it 
under these names from several different sources. From the former 
it differs generically, and from the latter in its much smaller size and 
regularly rounded whorls. It is in general appearance very much 
like a minute A. imosa, but can at once be separated by its diminu- 
tive size. Asin many species of Amnicola, there are two forms, one 
more slender than the other. From A. walkert (pl. 5, fig. 12, cotype, 
High Island Harbor, Mich.), which is about the same size, it differs 
in being more globose, with less convex whorls, the suture being not 
so deeply impressed, larger aperture and the appression of the inner 
lip to the body-whorl. Named in honor of Dr. H. A. Pilsbry. 


AMNICOLA AUGUSTINA Pils. PI. 5, figs. 13 and 14. 


Mr. Hinkley collected this species at Tuscumbia, Ala. Dr. Pils- 
bry, who kindly compared specimens with the types, writes: “It 
seems to me too close to augustina to be specifically separable, though 
there are differences. Your shells have the whorls a trifle less con- 
vex, the sutures therefore somewhat less deeply constricting, and the 
narrow phase (males?) is narrower than the corresponding form in 
augustina, but I would prefer to attribute what differences there are 
to local causes.”’ 

As A. augustina has not been figured, and the discovery of Mr. 
Hinkley not only widely extends its range, but adds a new species to 
the fauna of Alabama, it seems of sufficient interest to figure the 
Alabama form and to record its occurrence at Tuscumbia. 

Fig. 13. Alt. 3, diam. 2 mm. 

Fig. 14. Alt. 3.25, diam. 2.25 mm. 


118 THE NAUTILUS. 
NEW VARIETIES OF NORTH AMERICAN PISIDIA.—2. 


BY V. STERKI. 


( Continued.) 


Pisidium variabile Pr. var. brevius n. Much shorter than the 
usual form, oblique, moderately to well inflated, beaks comparatively 
large, generally slightly flattened on top; color darker; so far as 
known, the mussels are usually smaller. This Pisidium is consider- 
ably different from the ‘typical’? form, and an analogue of P. 
compressum Var. confertum. 

Hab.: Michigan: Houghton Lake; Gogebic Lake and Slate 
River to same, Carp River and Lake, Ontonagon Co., Walker ; 
Crystal Lake (Dr. Kirkland); Minnesota: Clear Water Lake (Sar- 
gent); Keewatin: Attawapiskat River (McInnes, sent by Whiteaves). 

Var. hybridum n. Smaller than average variabile, of nearly the 
same shape ; but the shape of the beaks, surface appearance, color 
and opacity of the shell are those of Pis. equilaterale Pr. This is an 
interesting form, and might be taken for a hybrid between the two 
species, both of which were found at the same places; but it is 
markedly constant, so far as known. 

Vicinity of Mohawk, N. Y.: Wide Water Canal (Jas. Lewis col- 
lection, now Mr, Bryant Walker’s), Chepachet Pond (received from 
Mr. H. E. Sargent). 

There are some other forms of Pvs. variabile, rather characteristic 
and constant, and with more material will probably prove real 
varieties. Even the more typical form is rather variable with re- 
spect to size, shape, striation, color, thickness of shell and hinge. 

Pisidium noveboracense Pr. The form regarded as typical seems 
to be common in New York, Pennsylvania and Ohio, prevalent in 
sprirgs and small brooks. But the species is almost endlessly vari- 
able and seenis to readily respond, in that respect, to various kinds 
of habitat, so that it often seems impossible to decide whether a 
certain form has to be ranged under it or not. But there are a 
number of forms characteristic and more or less constant, and must 
be described as varieties. 

Var. expansum,n. Anterior part of the mussel higher ; supero- 
anterior slope more curved, anterior end more rounded ; postero- 
inferior curve generally broader ; outlines in general more rounded; 
more regularly inflated, beaks less prominent, young specimens less 


THE NAUTILUS. 119 


inflated comparatively, and of cheracteristic shape ; surface with 
very fine, more regular striation, and generally more even dullish ; 
color grayish to brownish, whitish to straw-colored in the young but 
soon changing. 

Various places in Michigan: Grand river, Lamberton creek, a 
small stream, etc. (Kent co., Dr. Kirkland); a very similar form 
from a ditch on Cameron Run near Alexandria, Va. (Sterki). 

Var. elevatum,n. Smaller than the type, shorter, well inflated, 
anterior part higher, anterior end more rounded ; superior margin, 
slightly or scarcely curved with sharply projecting angles before and 
behind, which are, however obsolete in some specimens; color straw 
to yellowish-horn. This is quite a characteristic form but seems 
connected with the type by intermediate specimens. 

Creek and pond at Castalia, Erie co., Ohio (Sterki), Joliet, Ill. 
(Ferris and Handwerk); similar forms from other places. 

Var. quadrulum n. Smaller, slighter, of more quadrate outlines 
but with no sharp projecting angles; supero-anterior slope rather 
steep ; beaks not much prominent; surface with rather fine, some- 
what irregular striz ; color pale to grayish-horn ; shell thin and 
somewhat translucent, hinge rather slight. 

This Pisidium appeared to be distinct from noveboracense ; yet 
intermediate forms may be found. It is a form of ditches and 
marshes, and widely distributed, as it seems ; quite common, ¢. g., in 
the vicinity of New Philadelphia, Ohio (Sterki). 

A larger form, stouter, higher, more inflated, with the shell 
scarcely translucent, was called proclive; it may prove to be a real 
variety. Ditches, New Philadelphia, O., and similar forms from 
other places. 

Var. Lineatum n. Smaller, shorter, somewhat oblique, moderately 
inflated, especially so towards the inferior margin, somewhat triang- 
ular in outlines ; beaks narrow, little prominent ; surface with rather 
fine, subregular striz, and usually with a few fine lines, dark lines of 
growth ; color straw to yellowish, horn to reddish ; shell and hinge 
rather slight. — 

Reed Lake, Michigan (Dr. Kirkland), and similar forms from 
elsewhere. This is somewhat analogous to Pis. compressum var. ros- 
tratum, of the same lake, and it may be noted that the same is in- 
habited by nearly typical forms as well as several rather different 
forms, or varieties of both species; at least one of each has not been 
described here. 


120 THE NAUTILUS. 


Var. fraternum, n. Less elevated; superior and inferior margins 
slightly curved, and the former long; beaks not much prominent ; 
surface with irregular, shallow striz, shining; color horn to yellowish- 
horn, usually in irregular, alternating zones, also more or less 
translucent. In its surface appearance it resembles the ‘ eastern 
form” of Pis. abditum Hald. 

New Philadelphia, and Akron, Ohio (Sterki); similar but smaller 
forms from Kent Co., Mich. (Dr. Kirkland). 

Var. alabamense, n. Higher; beaks quite prominent; superior 
margin more curved and sloping down into the anterior and posterior 
without or with slightly prominent, rounded angles; mussel rather 
large and well, regularly inflated; surface with rather sharp, sub- 
regular stria, slightly shining to dull, and microscopically rugulose ; 
color yellowish to grayish-horn ; size, long. 6, alt. 5, diam. 4.6 mm., 
a few even larger, but most specimens are smaller. 

Hab.: Alabama, along the Coosa river, common (H. H. Smith), 
Tennessee river (Sargent, Hinkley), Columbus, Mississippi (Hink- 
ley). 

This Pisidium is rather variable. While most specimens are as 
described, and appear to represent a distinct species, others approach 
the ‘‘ typical”? New York and Ohio form in shape. 


NOTES AND NEWS. 


A New Locatity ror PLANORBIS NAUTILEUS LinNE.—While 
identifying a lot of shells recently for Dr. William A. Nason of 
Algonquin, Illinois, a single specimen of Planorbis nautileus was dis- 
covered ina lot of other small Planorbes,—parvus, albus, deflectus. 
The single specimen is rather large, 24 mill. in diameter, and the 
ribs on the base of the shell, which give it its strong nautiloid ap- 
pearance, are very large and distinct. The flat upper surface is also 
conspicuous. This habitat, Algonquin, Illinois, adds a new southern 
and western locality to the range of this interesting species —FRANK 
Cotiins Baker. 


Errata.—Navtitus. Jan. 1906, p. 101, line 5, for ‘‘ones”” 
read “ one;’’ p. 101, line 7, for ‘‘ Ramalley read ‘* Ramaley.”—T. D. 
A. CocKERELL. 


i il ee 


ee NAUTILUS. 


Vor. XIX. MARCH, 1906. No. 11. 


ON BIFIDARIA PENTODON AND ITS ALLIES. 


BY E. G. VANATTA AND H. A. PILSBRY. 


The group of B. pentodon has been for many years the subject of 
much perplexity to conchologists, on account of the great variability 
of the shells in size, shape, and dentition of the aperture. It is easy 
to select forms which seem perfectly distinct species, but when large 
series are examined, there is always a residuum of intermediate 
specimens which can as well be placed in one as another of the se- 
lected groups. The difficulty is increased by the fact that practically 
all of the forms occur over the whole area of the group, though one 
or another of them may predominate in any given locality. This led 
Dr. Gould to the conclusion that P. curvidens and tappaniana are 
forms of pentodon (Boston Journal N. H. IV, 1844, 'p. 35), an opin- 
ion adopted by Binney, and commonly prevalent until recent years, 
when Dr. Sterki revived curvidens. It is the purpose of this article 
to ascertain the exact forms which have been described, and to 
show by figures the various modifications of form. 

In all the forms the shell is of a white-corneous color and the teeth 
within the lip stand upon a white callus, in this respect differing 
from B. pilsbryana of the Southwest. 

The following names have been applied to the group: 

Vertigo pentodon Say, 1821. 

Pupa curvidens Gld., 1841. 

Pupa tappaniana Ward, C. B. Adams, 1842. 
Pupa tappiana Ward, Pfr., 1842. 

Pupa cineinnatiensis Judge, 1878. 

Pupilla floridana Dall, 1885. 


oe ee ae 


122 THE NAUTILUS. 


7. Pupa montanella Ckll., 1889. 

8. Pupa curvidens var. gracilis Sterki, 1890. 

9. Pupa pentodon for f. curta Sterki, 1894. 

The original descriptions of these forms are given below, most of 
them in full, while of others (nos. 4-6) only the important parts 
are quoted. 

Having examined many hundreds of specimens from all parts of the 
range of the species in question, it appears that there is intergrada- 
tion throughout the series in a small proportion of specimens; but 
the vast majority of specimens fall into two groups which may be 
given the nominal rank of species, the proposed classification standing 
as follows: 

B. pentodon (Say). Synonyms, cincinnatiensis, curta, montanella. 
“Form ” curvidens, including floridana. 

Var. gracilis St. 

B. tappaniana (C. B. Ad.). Synonyms, tappiana Pfr., pentodon 
auct. 


bJ 


Notr.—The figures are all drawn to one scale (X 13.8), and any may be 
accurately measured by plotting on paper a scale with the lines 13.8 mm, 
apart; each space then representing 1 mm, Thus fig. 1 is 1.8 mm. long. 


BIFIDARIA PENTODON (Say). Figures 1 to 41. Fig. 1 is typical. 

The shell is small, varying from conic to subcylindric in shape. 
Teeth typically 5, of which the parietal, columellar and lower pala- 
tal are larger and compressed, the lower palatal entering a little more 
deeply than its fellows in the outer margin ; but often subcolumellar, 
basal, and interpalatal denticles are developed. Figs. 1 to 8 are 
from Maine specimens, showing the ordinary variations. The de- 
velopment of a crest behind the lip varies a good deal, from weak to very 
strong, with all intergrades. P. cincinnatiensis (fig. 385, a cotype) is 
a small form of pentodon. 

The increase in number of accessory denticles or teeth culminates 
in the form named curvidens, represented in figs. 9 to 15, also 3, 6, 
32 and perhaps some others, as there is absolutely no line to be drawn 
between pentodon and curvidens. The number of teeth varies from 
5 to 9 in perfectly adult shells of the same gathering from one 
spot. Thedevelopment of an infraparietal denticle is also extremely 
variable in many lots, as in that from Buckfield, Me., figs. 1 to 4, 8. 
P. floridana (fig. 9, a cotype from the author) is absolutely identical 
wich curvidens. 


THE NAUTILUS. ae 


It may be stated as proven that some colonies consist of ‘‘ pento- 
don” and intermediate forms; some of “pentodon,” intermediate and 
‘“‘curvidens”’ forms; and some of the intermediate and ‘ curvidens ” 
forms. We have found no large gathering of wholly typical pentodon 
or entirely curvidens. Either form may be found with a low or high 
crest—this being usually more constant in any one colony than the 
number of teeth or the size and shape of the shell. The only theory 
upon which curvidens could be retained as a species or subspecies 
would be to assume that two species are living in a state of hybri- 
dism—an assumption which seems to us baseless. 


Bifidaria pentodon gracilis Sterki. Figs. 16 to 27. 

This is usually larger, more cylindric, with 5 teeth, though per- 
fectly mature shells may have as few as 3 (figs. 19, 26,) or as many 
as 6 or 7 (figs. 16, 18, 21). It was originally described from New 
Philadelphia, Ohio, but those figured are from Alabama; figs. 16, 17, 
21 to 27 from around Wetumpka, 18, 19, from Woodville, 20 from 
Big Wills Valley, coll. by H. H. Smith and H. E. Sargent. None 
of them has an infraparietal denticle. 

While this race seems to be tangibly differentiated in the hill 
region of Alabama, specimens may be selected from other lots of 
pentodon which could not possibly be distinguished if mixed with the 
Ala. shells ; for instance fig. 31, Henry Co., Ind., and fig. 33, Des 
Moines, Ia., both taken from lots varying in shape from long and 
cylindric to shorter and more conic, 


The original descriptions of forms referred to pentodon here follow. 

“ V. pentodon. Shell dextral, subovate, whitish horn-color ; apex 
obtuse ; whorls five, glabrous, convex; suture not very deeply im- 
pressed ; aperture semioval ; labium two-toothed, of which a single 
very prominent one is on the middle of the transverse portion or true 
labium, and the other is remote, much smaller and placed in the 
basal angle of the columella ; dabrum regularly arcuated, tridentate, 
tooth nearest the base very small and placed near the smaller tooth 
of the columella, the two others larger, subequal ; umbilicus distinct. 
Length less than one-tenth of an inch. 

“ Animal. Tentacula two, rather long and thick, cylindrical-ob- 
conic, retractile, with a rounded oculiferous extremity ; two hardly 
elevated truncated tubercles instead of the anterior tentacula ; foog 
white ; head and neck, as far as the mantle, black. 


, 124 THE NAUTILUS. 


‘‘Inhabits Pennsylvania. The lower tooth of the labrum is some- 
times obsolete.” (Say, Journ. Acad. Nat. Sciences Phila., vol. 2, 
1821, p. 376.) 


Norre.—This is not the comparatively large and conic multidentate form commonly 
known in recent years as pentodon; but a five- or six-toothed form which has 
hitherto been referred to curvidens. 


* Pupa curvidens. Shell minute, ovate, but much elongated, of a 
spermaceti-white color; whorls five, convex, smooth, gradually di- 
minishing to an obtuse apex ; suture deeply impressed, aperture sub- 
triangular, with the front and outer angles rounded, and the outer lip 
curved inwards, so as almost to make the aperture heart-shaped ; the 
transverse margin is straight, and slightly oblique; the inner lip is 
also nearly straight, so that these two form a rightangle at their 
junction ; lip widely reflected, flattened, white; throat armed with 
nine teeth; the longest, somewhat curved to the left, compressed 
and pointed, is situated on the middle of the transverse lip, and has 
a small one seated at its left side; at the front, nearly opposite the 
large tooth, almost as large and inclined to the left also, is a quad- 
rangular, blunt tooth, more slightly curved; on the left margin are 
three teeth, of which the upper one is larger, and about the size of 
the basal tooth, of a blunt quadrangular figure; the other two are 
minute; on the outer lip are also three teeth, of which the two upper 
are very small and pyramidal; umbilicus open. Length 3, inch, 
breadth 3, inch. 

“This minute species I first found under a loose stone on the 
ledges at Phillips Point, Lynn, near the Ocean House. * * * * 
Four of the teeth are very small, and would ‘scarcely be discerned 
without being highly magnified, and they seem to be seated farther 
within the aperture ; the small one on the transverse lip, the basal 
one, and the upper one on the right lip are liable to be wanting. So 
far as I can ascertain, it has not been previously described, unless 
several of the teeth have been overlooked. It is nearest allied to 
P. pentodon”’ (Gould, Report on the Invertebrata of Massachusetts, 
1841, p. 189, f. 120). 

‘“* Pupa cincinnatiensis Judge. * * * peristome simple, heavily 
thickened near the margin, the callus extending over the parietal 
wall; aperture contracted by five prominent denticles, seated on the 
callus, one prominent on the parietal wall, two on the columella, the 


THE NAUTILUS. 125 


lower being the smaller of the two, and two on the outer portion of 
the peristome, more deeply seated in the throat, aud occasionally 
one or two very minute rudiments on the peristome. Length 1.56, 
diam. 84mm. This shell is found on both sides of the Ohio River, 
near Cincinnati.” (Judge, The Quarterly Journ. of Conch., p. 343, 
1878.) 

“ Pupilla floridana Dall. * * * subcylindrical * * * teeth 
about 9, of which there are generally 3 larger than the rest, their 
tips nearly mecting and their bases mutually nearly equidistant ; one 
is on the pillar, one on the body-whorl, and one on the anterior mar- 
gin; on either side of the latter are two generally subequal, much 
smaller denticles. Lon. 1.6, lat. .75 mm. Archer, Alachua Co., 
Fla.” (Dall, Proc. U. S. Nat. Museum, Vol. 8, 1885, p. 261, pl. 
17, f. 11.) 

The figure seems to have two teeth on the parietal wall, two on 
the columella and five in the palatal region. This is practically 
identical with the arrangement described under curvidens. 

“ Pupa montanella. A minute Leucochila which 1 have found 
very sparingly at about 8400 feet in West Custer Co. (Colorado), to 
which I have given the name P. montanella sp. noy., but do not 
describe it pending further investigations.” (Ckll., The Journ. of 
Conch., Leeds, Vol. vi, 1889, p. 63.) 

‘* P. montanella, indicated on the same page as P. coloradensis, 
proves to be a form of P. pentodon.”’ (Ckll., The Brit. Nat., 1891, 
p- 101.) 

Since no definition of any kind has been published, this name 
becomes an absolute synonym of B. pentodon. 

‘* Pupa curvidens var. gracilis. On a gravelly bank at New Phil- 
adelphia, Ohio, there is a peculiar form of our species; long, slender, 
nearly cylindrical, with only 5 typical lamelle, no accessory ones, 
* * * I thonght it not out of place to name it var. gracilis.” (Dr. 
V. Sterki, Nauritus, iii, 1890, p. 119.) 

** Pupa curvidens gracilis Sterki. Scarce. New Philadelphia. A 
peculiar form intermediate in shape between the type and Pupa 
holzingeri Sterki. It has also been seen from Rhode Island, Ten- 
nessee and Alabama.”’ (Sterki, The Land and Fresh-water Mollusca 
in the Vicinity of New Philadelphia. A contribution to the Nat. 
Hist. of Tuscarawas Co., Ohio, 1894.) 

“« Pupa pentodon f. curta. Examples from wet places are small 


126 THE NAUTILUS. 


and short ovoid (f. curta).”’ (Sterki, Land and Fresh-water Mol- 
lusca in the Vicinity of New Philadelphia, etc., p. 5, 1894.) 


BIFIDARIA TAPPANIANA (C. B. Adams). Figs. 42 to 53. 


The shell is larger than pentodon, markedly conic though obtuse ; 
only one tooth on the parietal wall, usually 6 on the columellar, 
basal and outer margins, those on the latter standing on a strong rib. 
Lower palatal tooth usually not so long and entering as in B. pentodon. 

Distribution, Ontario to the Gulf of Mexico, west to Iowa and 
Kansas, southwest to Arizona, but not known from the southeastern 
Atlantic States, Virginia to Florida. 

This is the form now everywhere known as “ pentodon Say.”’ It 
is often a difficult question, upon which no two experts might agree, 
whether to refer a certain specimen to tappaniana or to some form of 
pentodon, since while the larger size and globose-conic shape are 
characteristic of tappaniana, yet intermediate sizes and shapes occur 
occasionally, so that we disclaim any intention of setting up a defi- 
nite boundary between the forms. It can only be claimed that the 
great majority of lots are quite readily separable. The variations in 
size and sbape are well shown in the figures. Figs. 42, 43, Phila- 
delphia; 44, Buckfield, Me. ; 45, Ithaca, N. Y.; 46-48, Duchess Co., 
N. Y.; 49-52, Washington, D. C.; 53, Oak Creek, Arizona. The 
original description follows : 

‘* Pupa tappaniana Ward, inedit. Shell very small, pale horn- 
color, translucent, tapering above the penultimate whorl; whorls a. 
little more than five, convex, with a well-impressed suture ; aperture 
sub-orbicular (the penult. whorl cutting off about one-third of the 
circle), about one-third of the length of the shell ; margin sharp, with 
# narrow contraction in the submargin, beneath which is a thicken- 
ing within, on which are the labial teeth; teeth eight, five primary 
and three secondary ; of the former the largest is on the penultimate 
whorl, the next largest on the left side of the aperture; at the base, 
beginning at the left hand, is a primary, then a secondary, a primary, 
a secondary, a primary and another secondary, extending nearly to 
the upper extremity of the right margin; the last three primaries are 
not constant in size; umbilicus open. Length 0.08 inch; breadth 
0.05 inch. 

‘‘ This species is easily distinguished from the preceding (P. con- 
tracta) by its teeth.” (C. B. Adams, History of Vermont, Z. 
Thompson, 1842, p. 158.) 


PEATE sVvele 


% & 


10 


Bijidaria pentodon, 1-4,8. Buckfield, Me.; 5. Woodland, Me.; 6. Fairfield, Me.: 7. West- 
brook, Me.: 9. Alachua Co., Fla.: 10. Volusia Co, Fla.; 11. Sut Mareos, Tex.; 12. Comal Co., 
Tex. ; 13, 16,17, Wetumpka, Ala.: 14, 15, 20. Near Valley Head, Ala.; 18, 19. Woodville, Ala. ; 
21-27. Wetumpka, Ala. 


THE NAUTILUS, XIX. PLATE VII. 


Bijidaria pentodon. 23,29. Troy, N. Y.; 30 Greenwich, N. Y.; 31,37. Henry Co. Ind.: 32. 
Ocean City, N. J.; 33. Des Moines, La.; 34, 35. New Philadelphia, O.; 36. Cincinnati, U.: 38. 
Miami, Fla.; 39. Des Moines, Ia.; 40. Jasper Co., Mo.: 41, Silver Lake, Kans. 


Bijidaria tappaniana, 42,43. Philadelphia, Pa.; 44. Buektield, Me.; 45. Ithaca, N. Yo: 4 
48, Duchess Co., N. Y.: 49-52. Washington, D C.: 53. Oak Creek, Ariz. 


THE NAUTILUS. 7 


~ 


It is not known whether this description was published before or 
after the following, both appearing in 1842. This is the compara- 
tively large shell commonly known as P. pentodon, and figured as 
such in Binney’s Manual. 

“ Pupa tappiana (Ward) Pfr. * * * conical-ovate, with 1 strong 
parietal tooth, 1 columellar, 4 or 5 smaller on outer lip; length 2, 
diam. 14mm. Vermont.” (Pfr., Symbole ad Hist. Heliceorum, 
ii (1842), p. 55.) 

This may well be considered a synonym of tappaniana Ad. 


PLate VI. 


Bifidaria pentodon (Say). 

Figures 1-4. Buckfield, Maine. John A. Allen, Acad. Nat. Sci. 
No. 87304. 

5. Woodland, Maine. O. Nylander. No, 58249. 

6. Fairfield, Maine. J. H. Thomson. No. 58248, 

7. Westbrook, Maine. A. D. Brown Collec. (Bolles). No. 4263. 

8. Buckfield, Maine. John A. Allen. No. 87307. 

9. Cotype of P. floridana Dall. Alachua Co., Fla. W. H. Dall. 
No. 58242. 

10. Mt. Taylor, S. of Volusia, Volusia Co., Fla. H. A. Pilsbry. 
No. 72769. 

11. Drift of Sinking Spring, San Marcos, Texas. H. A. Pilsbry. 
No. 90454. 

12. Drift of Guadalupe R., 4m. above New Braunfels, Texas. 
H. A. Pilsbry. No. 90456. 

13. Wetumpka, Alabama. H.H.Smith, No. 87151. 

14,15. Near Valley Head, Alabama. H.H. Smith. No. 90451. 

16,17. Near Wetumpka, Alabama. H.H. Smith. No. 90458, 

18,19. Woodville, Alabama. H.E. Sargent. No. 66901. 

20. Big Wills Walley, 2 m. S. of Valley Head, Alabama. H.H. 
Smith. No. 90453. 

21-27. Near Wetumpka, Alabama. H.H.Smith. No. 90425. 


PuiaTe VII. 
Bifidaria pentodon (Say). 

Figures 28, 29. Troy. New York. T. H. Aldrich. A. N. S., 
No. 58251. 

30. Greenwich, New York. T. Bland. No. 3924. 

31. Henry Co., Indiana. R. Walton Collec. No. 58240. 

32. Ocean City, New Jersey. H. A. Pilsbry. No. 72709. 

33. Near Des Moines, Iowa. T. Van Hyning. No. 88439. 

34, 35. Near New Philadelphia, Ohio. Dr. V. Sterki. No. 58239. 

36. P. cincinnatiensis Judge. Cincinnati, Ohio. Wm. Doherty. 
No. 58244. 


128 THE NAUTILUS. 


37. Henry Co., Indiana. R. Walton Collec. No, 58240. 
88. Miami, Florida. S. N. Rhoads. No. 58253. 

39. Des Moines, Iowa. T. Van Hyning. No. 79641. 
40. Jasper Co., Missouri. M. A. Mitchell. No. 58254. 
41. Silver Lake, Kansas. J. B. Quintard. No. 58246. 


Bifidaria tappaniana (Ad.). 

42. School Lane, Germantown, Philadelphia, Pa. R. Walton. 
No. 58250. 

43. West Fairmount Park, near Chamounix, Philadelphia, Pa. 
Vanatta. No. 58224. 

44, Buckfield, Maine. John A. Allen. No. 58219. 

45. Ithaca, New York. No. 62486. 

46-48. Upper Red Hook, Duchess Co., New York. W.S. Teator. 
No. 58218. 

49-52. Washington, D.C. E. Lehnert. A. N.S., No. 58225. 

53. Drift of Oak Creek, Page’s Ranch, Oak Creek, Arizona. 
E. H. Ashman. No. 82925. 


DREDGING IN FRENCHMAN’S BAY, MAINE. 


BY DWIGHT BLANEY. 


Professor Edward Forbes has said, in speaking of the under- 
water world, ‘* The difficulties which attend the inquiry add to the 
zest of the research; and tiere is acharm in travelling mentally over 
the hills and valleys buried inaccessibly beneath their thick atmos- 
phere of brine.” 

There are other pleasures, however, associated with what we call 
the ‘adventure ” of dredging—as dredging for shells, like many 
another adventure is full of surprises—and suggests untold possibil- 
ities in the way of new discoveries. One never knows what treas- 
ures will be in the next haul, and the most discouraging day still 
leaves us with enthusiasm for the next trip. We indeed believe 
that it matters little how poor a haul may be: each trip always 
yields us something of interest. Any day we may come upon a 
colony of some species we have looked upon as rare—and the next 
haul the dredge may disclose fine live specimens of species pre- 
viously found dead. 

For several seasons the Mesalia erosa, (Couth.) was represented 
in our collection by a single dead and much eroded specimen, until 
one lucky day we came upon a colony of them, fine large live ones. 
The shells were quite crimson in color, and the animals so tenacious 


THE NAUTILUS. 129 


of life as to live for days in salt water, giving us good opportunity to 
make drawings of them under the microscope. 


Another shell which we had looked upon as rare, and whose sculp- 
tured whorls we had always admired, is the Seala grenlandica 
(Perry). Last summer we found it in comparative abundance in one 
locality. Our boat being out of repair, we made a number of hauls 
from the ledges, well out toward the sea. One of us would take the 
dredge out about one hundred yards from shore and drop it, while 
the others on the rocks would laboriously pull it in. The haul thus 
radiating from one spot would cover quite an area, varying of course 
in depth. On this bottom, composed of quantities of fragments of 
barnacles scraped from the ledges by the ice in previous winters, we 
found a number of interesting northern species, among which was 
the Scala above mentioned. The barnacle fragments formed a most 
excellent protective background for this species, and it required 
sharp eyes to pick them out after the material had been washed over. 

Associated with the Scala was the Menestho striatula (Couth.), 
which was equally hard to pick out from among the broken shells. 
As many as thirty specimens of Scala would be found in each haul 
of the dredge, and the Menestho proved to be also common here. 

Here we also found the Bela bicarinata (Couth.) and a great many 
of the Cylichna alba (Brown). 

One of the unexpected surprises occurred one day, when in mak- 
ing a haul in deep water, our precious dredge caught in some 
obstacle which came to the surface with great reluctance. It proved 
to be a “‘gang” of lobster traps, which had been carried off into 
deep water and so lost. It was duly recognized and claimed by one 
of our men, who had lost it the previous winter. On the stones with 
which each trap was weighted, we found many specimens of Chitons; 
the Trachydermon ruber (Linne), the 7. albus (Linne), and a few 
Tonicella marmorea (Fabr.), also a number of Lepeta ceca (Miller). 
It is interesting to note, in relation to the last species, that Gould in 
his “‘ Invertebrata of Massachusetts,” Ist edition, 1841, says: ‘* Only 
three specimens of this shell are yet known.” This is repeated in 
the edition of 1870. We have found it, however, fairly common. 

Another surprise in our dredging was to come upon the ‘“ Dump 
ing Ground” of the Bar Harbor Refuse Scow.. On this spot Bar 
Harbor has deposited its refuse for some years. The lighter material 
being carried out by the tide and the heavier sinking to the bottom 


130 THE NAUTILUS. 


to become encrusted with the red nullipore—Lithothamnion poly- — 
morphum—broken bottles, bones, broken china, and similar refuse 
forming good hiding-places for many shells. The Chitons mentioned 
above, and the Solariella obscura (Couth.), also the pretty Margarites 
grenlandica (Gmelin) and the Margarites cinerea (Couth.) are found 
at this spot. The past year has seen a renewal of the industry of 
dredging the great scallops Pecten magellanicus (Gmelin). Many 
natives have fitted good-sized sailboats with power, and with power- 
dories and large, chain-meshed dredges have given the bottom of the 
Bay a good scraping. This industry has paid well for a while, but 
the increasing number of boats devoted to this work is beginning to 
tell on the supply, and it is bound to give out shortly. 


SHELLS OF GRANT, VALENCIA CO., NEW MEXICO. 


BY H. A. PILSBRY. 


During a brief stop at this place, which is on the Santa Fé Pacific 
R. R., near the western boundary of New Mexico, above the middie 
of the Territory, Messrs. Albert and Joshua Baily, Jr., of this city, 
collected a series of shells, including several forms of considerable 
interest. The specimens of Lymnexa bulimoides are a very globose 
and short-spired variety, which I have before received from Prof. 
Cockerell and others. It will be described as var. cockerelli in a 
paper on Southwestern Mollusca now about to be published. 

Valvata humeralis is a Mexican species, new to the fauna of the 
United States, and its occurrence so far north of the Mexican bound- 
ary leads us to expect it in suitable places over a considerable terri- 
tory within our limits. It is quite unlike V. virens of the Rocky 
Mountain region, having more in common with the northern V. sin- 
cera Say. ‘The list follows: 


Zonitoides arborea (Say). Bifidaria pellucida hordeacella 
Z. minuscula (Binn.). (Pils.). 

Pyramidula striatella (Anth.). Vertigo ovata (Say). 
Helicodiscus parallelus (Say). V. coloradoensis arizonensis 
Vallonia gracilicosta (Reinh.). (Pils. & Van.). 

V. cyclophorella (Anc.). Cochlicopa lubrica (Miill.). 
Pupoides marginatus (Say). Succinea grosvenort (Lea). 
P. hordaceus (Gabb.). Lymnea bulimoides cockerelli 
Pupilla muscorum (1.). (Pils.). , 

P. blandi (Morse). Planorbis parvus (Say). 


P. syngenes dextroversa (Pils. Physa sp. undet., not adult. 
& Van.). Valvata humeralis (Say). 


THE NAUTILUS. 131 
ON A NEW FLORIDIAN CALLIOSTOMA. 


BY WILLIAM HEALEY DALL. 


In March, 1903, the U. S. Fish Commission steamer Fish Hawk 
obtained some casts of the dredge in the straits of Florida. This 
material has recently been turned over to the National Museum, and 
proves to contain several items of interest, At Station 7511, in 45 
fathoms, off Fowey Rocks, was dredged a species of Calliostoma 
which appears to be new; at Station 7516 fragments of Oniscidia 
dennisont were obtained, with a specimen of Scala (Acrilla) retifera 
Dall, 28 mm. in length, and at Station 7511 a fine specimen of the 
rare Subula floridana Dall, described originally from the Blake dredg- 
ings. As it has been shown that the name Hutrochus Adams is pre- 
occupied, I replace it by Letotrochus Conrad, 1863, typified by Z. 
distans Conrad, of which the type has turned up in the National 
Museum (see Trans. Wagner Inst., iii, pp. 399 and 402), and proves 
to be a mature specimen of the shell named Zrochus conus by H. C. 
Lea in 1845. Astele Swainson, 1855, seems to be more closely re- 
lated to Solariella, and is described as ‘‘ with no columella,”’ the inner 
lip being simple and arcuate. Conrad’s diagnosis is incorrect, as the 
reader will see by referring to the above-mentioned data. His type 
is smooth, with, in the adult, a narrow, deep umbilicus and a distinct 
Calliostomoid pillar. Owing to Conrad’s contradictory diagnosis of 
1863, I hesitated, in 1892, to accept his name, but as things now 
stand it seems necessary to do it or to propose a new one. The 
description of the species is as follows: 


Calliostoma (Leiotrochus) marionz n. sp. 


Shell acutely conic, with the sides of the spire slightly concave, 
ten-whorled, brilliantly polished, color a rich brick-red, mottled near 
the periphery with whitish flammules; nucleus translucent white, 
tilted obliquely ; sculpture, on the subsequent four or five whorls, of 
five (5) granular, spiral ridges, separated only by narrow incised 
lines, with a more conspicuous ridge just above the suture ; subse- 
quently the ridges become flattened, wider and more or less spirally 
striate on their tops, while the original five incised lines retain a 
darker color than the rest of the surface; the suture is not strongly 
marked, and runs just below the periphery of the preceding whorl ; 
base slightly convex, with ten or eleven similar incised spiral lines 


Wo THE NAUTILUS. 


stronger toward the umbilicus, where the interspaces become feebly 
nodulous, the last one on the brink of the umbilicus more strongly 
so; umbilicus moderately large, funicular, its walls white, smooth, 
and slightly excavated just within the basal margin; pillar white, 
thin, arcuate, ending in a blunt projection separated by a small notch 
from the basal margin of the aperture, which, with the outer lip, is 
thin and sharp; throat pearly, without lirations or callus on the body. 
Alt. of shell 19.0, max. diam. 18.0; diam. of umbilicus 2.5, min. 
diam. of base 16.0 mm. 

The periphery is subangulate, becoming rounded in the adult. The 
operculum is thin, horny, multi-spiral, with about 14 whorls. The 
animal is of a reddish color somewhat like the shell, the sides of the 
foot granular, the muzzle concentrically wrinkled, the tentacles long 
and slender, with no epicephalic veil between them; the eyes large 
and black, on short but distinct peduncles, behind and above the 
tentacles ; epipodial lobes with papillose edges and two or three more 
elongate processes on each side, but none project from the opercular 
lobe ; the foot is short and rather blunt behind. As contracted from 
immersion in alcohol, the tentacles and epipodial processes seem 
smooth, and show no such ciliation as is figured by Adams in Callios- 
toma, while the absence of the “ veil” is noteworthy. 

Altogether, though not very large, this is one of the most attractive 
East American species, both in form and coloration. Only one 
specimen has yet been obtained, No. 187233, U.S. Nat. Mus. register. 


Note on TRIVIA ACUTIDENTATA GasK.—A few years ago, 
among a few shells obtained by me in San Francisco on board a 
schooner direct from the Galapagos Islands, I found one beach-worn 
Trivia which puzzled me, as it differed widely from any species then 
known to me. Upon a recent careful reading of the original descrip- 
tion of Trivia acutidentata Gask.. I find that this specimen corre- 
sponds exactly to Gaskoin’s description. 

This species, thus far unfigured, was described (Proc. Z. S., 1835, 
p- 201) from a single worn specimen collected by Cuming in the Bay 
of Guayaquil, and which, after description, was broken into unrecog- 
nizable fragments. As the locality of my specimen is also substan- 
tially the same, it would seem that this long-lost species has at this 
late day been again found.—FrRep L. Burron. 


Frerepinc Hasits AND GROWTH OF VENUS MERCENARIA. By 
Jas. L. Kellogg (N. Y. State Museum, Bull. 71). A very interest- 
ing and instructive paper illustrated by four plates.—C. W. J. 


THE NAUTILUS, XIX. PEATE VI. 


<> 

Gib 

<Up 
LD 


8 g 


AD 
Sb 
i. Up 


Figs. 1, 2, 6, 7. Carychium exile canadense. Figs. 3, 4, 5. Carychium exile. 


Figs. 8, 9. Carychium exiguum. Fig. 10. C. stygium. 


ee NAUTILUS. 


Von, XIX. APRIL, 1906. No. 12. 


NOTE ON A NEW VARIETY OF CERITHIDEA SACRATA GLD., FROM 
SAN DIEGO, CAL. 


BY S. S. BERRY. 


There is present in several Californian collections, and also in the 
National Museum and elsewhere, a form of the 
common Cerithidea sacrata Gould, which is ‘ peculiar 
in appearance, and might be none the worse for a 
mutational name” (Dall). It differs from the ordi- 
nary form, with which it intergrades, by being 
smooth, or rearly so, and more tapering, as shown 
in the accompanying figure. It is quite heavy and 
solid, and in my specimens the callus of the aperture 
is of a lighter and browner tint than is usual, and 
the aperture is smaller and less inflated. Length 
30mm. The original C. sacrata was pretty smooth, 
but for convenience in designating this form, espe- 
cially as opposed to the heavily ribbed var. pullata 
Gould, the name /yporhyssa is here suggested. All 
the specimens seen are from San Diego, although it doubtless occurs 
‘elsewhere. 

Stanford University, Feb. 10, 1906. 


134 THE NAUTILUS. 


ADDITIONAL NOTES ON BIFIDARIA PENTODON AND B. TAPPANIANA. 


BY V. STERKI. 


We are indebted to Messrs. Vanatta and Pilsbry for their exposé 
of these species and their forms, in the March Nautitus. The es- 


sence of it is that what we called B. pentodon Say is really tappant- 
ana Ad., and the forms ranged under curvidens are pentodon Say. 

After once more looking over part of my materials’ and the crit- 
ical forms, I find occasion for a few notes which it may be permitted 
to add. 

The form curta does not belong to pentodon,? but to tappantana. 
In some places it has almost the significance of a variety. The 
shells of pentodon from wet situations are usually also more ventri- 
cose, ovoid, than those from more elevated and comparatively dry 
stations. 

Fresh, good shells of pentodon from many places are glassy, trans- 
parent, colorless, while others are of a horny or milky hue; those of 
tappaniana are more generally so. . pentodon from some places 
has no callus or a very slight one in the palate. 

The “parietal” lamella in both species and all forms is really 
composite,® 7. e., composed of the parietal and angular, although the 
latter is generally quite small, a mere appendage of the former, 
especially in tappaniana, while in many specimens of pentodon it is 
quite distinct, and in some the whole lamella is even bifid, somewhat 
like that of B. holzingert. 

The habits of the two species are rather different, and they are not 
often found associated. Thus B. pentodon is common among moss 
and grass in forest and on open slopes, even steep, stony and rocky 
hillsides, where tappaniana is hardly ever found, The latter is prev- 
alent in low, damp places, under wood, etc. 

One feature of interest may be mentioned here. Like those of 


i ea ee 

1 About 250 entries on the two species. 

2 The names in the following are used in the sense of Vanatta and Pilsbry in 
the article referred to. 

8 Conf. Pilsbry and Vanatta, A Partial Revision of the Pupae of the United 
States, Proc. Acad, Nat. Sc., Phila., 1900, p. 593, key (Vertigopsis). In some 
figures on the plates VI and VII in the Nauriuus, the angular is shown, ¢. g., 
Figs. 3, 12, 21, 27, 32. 


THE NAUTILUS. 135 


B. armifera and contracta, the shells of many specimens, especially 
of pentodon, are covered with mucus and dirt, often completely, and 
frequently forming a somewhat irregular ridge along the middle of 
the whorls. This is not accidental, but evidently done by the animal 
on purpose, probably for additional protection against drought. 


DESCRIPTION OF NEW SPECIES OF ACHATINELLIDAE FROM THE 
HAWAIIAN ISLANDS. 


BY D. D. BALDWIN. 


Partulina cooperi, n. sp. . 


Shell dextral, very minutely perforated, rather thin, acuminately 
ovate conic, apex acute; surface shining, striated with fine growth-lines 
and under a strong lens exhibiting very close and minute decussating 
spiral striz, which extend to theapex. Color light yellowish-brown, 
sometimes dark reddish-brown, variously banded; the constant charac- 
ters being a white band at the periphery, a black line traversing the 
suture, with two white lines one above and one below the suture, all 
three lines extending to the tip of the apex. Whorls 6, somewhat 
convex, narrowly margined above, suture well impressed. Aperture 
oblique, oval, white within. Peristome brown, acute, slightly, thick- 
ened within, basal and columellar margins narrowly reflexed. Col- 
umella terminating in a strong, flexuous tubercle, tinged with red. 
dish-brown. 

Length, 17; diam. 9} mm. 

Hana, East Maui. 

Named in honor of Mr. G. O. Cooper of Hana, to whom we are 
indebted for the discovery of both this and the following species. 


Partulina fulvicans, n. sp. 


Shell dextral or sinistral, very minutely perforated, rather thin, 
acuminately ovate conic, apex subacute; surface shining, marked 
with delicate incremental striz, nuder a lens exhibiting extremely 
close, minute decussating spiral striae; unclear whorls faintly cross- 
lined. Color very light yellow, or sometimes white with one or two 
light yellowish transverse lines; a conspicuous dark band near the 
apex. Whorls 6, somewhat convex, narrowly margined above; 


136 THE NAUTILUS. 


suture well impressed. Aperture oblique, oval, white within. Per- 
istome acute, slightly thickened within, columellar margin narrowly 
reflexed. Columella terminating in a strong, white, flexuous fold. 

Length, 184; diam. 104 mm. 

Habitat, Kipahulu valley, Hana, East Maui. 

The sinistral variety may prove to be a distinct species. 

The molluscan life of this rather secluded valley has only recently 
been explored. 


Newcombia carinelia, n. sp. 


Shell dextral, very minutely perforated, solid, acuminately turrited, 
apex subacute; surface lusterless, rather coarsely and irregularly 
wrinkled by growth striz, and covered with numerous rather prom- 
inent decussating spiral strize which extend to the apex, with a cord- 
like carination at the periphery. Color white and brown, alternating 
in irregular longitudinal undulations, upper whorls with regular 
white and brown tessellations ; apex light brown. Whorls 6, slightly 
convex ; suture lightly impressed; the suture of second and third 
whorls are margined by the continuation of the peripheral keel or cord. 
Aperture oblique, oval, livid-white or light-brown within. Peris- 
tome light-brown, acute, very lightly thickened within, columellar 
margin reflexed over the small perforation. Columella very slightly 
developed, plain and smooth. 

Length, 15; diam., 64 mm. 

Habitat, Nahiku, East Maui. 


Amastra montana, n. sp. 


Shell dextral, imperforate, rather thin, ovately conical, apex acute ; 
surface lustreless, sculptured with fine incremental lines; the nuclear 
whorls finely radiately sulecated. Color light-brown, covered with a 
dark fugacious epidermis. Whorls 6, the upper ones slightly convex, 
the last one somewhat inflated, forming the larger part of the shell. 
Aperture a little oblique, elongately oval, white within. Peristome 
simple and thin. Columella terminating in a thin, arched, lamellar 
plait. 

Lenth, 14; diam., 93 mm. 

Habitat, Mt. Kukui, summit of West Maui, 6,000 ft. alt. 

Animal in motion as long as the shell. Mantle dark-brown with 
alight-brown border. Foot and tentacles almost black. Head above 
coarsely granulated. 


THE NAUTILUS. 137 


This species was found in company with Laminella alexandri, 
Newe. at an altitude incongenial to most Achatinellidx species. 


Amastra rubristoma, n. sp. 


Shell dextral, imperforate, solid, elongately ovate-conic, apex acute $ 
surface striated with irregular growth striz ; nuclear whorls radi- 
ately suleated. Color reddish-brown, sometimes almost white, upper 
whorls darker ; generally covered with a dark fugacious epidermis. 
Whorls 7, convex, suture well impressed. Aperture a little oblique, 
oval, red within, sometimes livid-white. Peristome acute, very 
slightly thickened within. Columella terminating in a strong arched 
lamellar plait, tinged with red. 

Length, 194; diam., 12 mm. 

Habitat, Island of Lanai. 

This species was discovered by Mr. D. Thaanum of Hilo, Hawaii, 
who has done much to encourage the study of Hawaiian land fauna. 


Amastra seminuda, n. sp. 


Shell dextral, imperforate, solid, ovate, spire convexly conical, 
apex acute ; surface covered with rather irregular growth striz, the 
embryonic whorls finely radiately sulcated. Color white or light- 
brown, lower half of body-whorl covered with a densely black epi- 
dermis, rest of the shell destitute of epidermis. Whorls 5, slightly 
convex, suture moderately impressed. Aperture a little oblique, 
sublunate, white within. Peristome acute, thickened within, not re- 
flexed. Columella terminating in a broad, thin, arched, lamellar 
plait. 

Length, 14; diam., 9 mm. 

Habitat, Waikolu, Is. of Molokai. 


Amastra conica, n. sp. 


Shell fossil, dextral, minutely perforated, thin, elongately conical, 
apex acute; surface sculptured with fine growth lines, apical whorls 
radiately sulcated. Color of living shell unknown. Whorls 7, con- 
vex; suture well impressed. Aperture oblique, oval. Peristome 
simple, very thin. Columella terminating in a slightly developed 
fold. . 

Length, 154; diam., 8 mm. 

Habitat, Hamakua, Island of Hawaii. 


138 THE NAUTILUS. 


This and the following species were discovered by Prof. H. W. 
Henshaw of Washington, D.C. He found them in deposits of fossil- 
ized shells at a place valled Mana. The existence of living ex- 
amples of either of these species now, or within any recent period, is 
highly improbable. 


Amastra (Laminella) sinistrorsa, n. sp. 

Shell fossil, sinistral, imperforate, thin, acuminately turrited, spire 
conical; apex subacute; surface sculptured with delicate growth 
lines, embryonic whorls radiately sulcated. Color of living shell un- 
known. Whorls 6, convex, suture well impressed. Aperture oblique, 
sinuately oval. Peristome simple, very thin. Columella terminat- 
ing in a slightly developed lamellar plait. 

Length, 143; diam., 64 mm. 

Habitat, Hamakua, Island of Hawaii. 

Amastra (Laminella) leva, n. sp. 

Shell sinistral, imperforate, rather thin, conically turrited, apex 
acute; surface striated with fine incremental lines, embryonic whorls 
with delicate radiating sulcations, color brown, with irregular 
patches of a dark fugacious epidermis. Whorls 6, somewhat con- 
vex ; suture well impressed. Aperture oblique, oval, livid-white 
within. Peristome simple and thin. Columella terminating in a 
thin lamellar plait. 

Length, 12; diam., 5 mm. 

Habitat, Haleakala Mt., East Maui. 

This species is the counterpart of Laminella soror, Ne. found on 
West Maui, but the latter is a larger and more obese shell. 


NOTES ON CARYCHIUM AND DESCRIPTION OF A NEW VARIETY. 


BY GEO, H. CLAPP. 


In examining a series of Carychium recently, I noticed that there 
is a large northern race of C. exile Lea which is found from Maine 
to Winnipeg, Manitoba, the latter being the most western point from 
which I have material. It differs from typical exile by its greater 
size, which is very constant throughout its range. Topotypes of C. 
exile from Wissahickon Creek, Philadelphia, Pa., kindly loaned me 


THE NAUTILUS. 139 


for examination by Dr. H. A. Pilsbry, measure 1.70 x .6 mm., and 
the lot from Kent, O., from which Dr. Pilsbry defined this species, 
Navtituvs, Vol. VIII, p. 63, measure 1.75 x .6 mn. 
The average size of C. exile from a large series of measurements 
may be put down as 1.75 x .6 mm. A i ae a The 
The northern race is, so far as I have seen, confined to the 
so-called ‘‘ Canadian Zone,” and I therefore propose the name C. exile 
canadense for this variety, taking shells collected at Kennebunkport, 
Me., as the types. These measure 2.1 x.75 mm., which is about 
the average size. ‘The series of theasurements below show the slight 
variation in this variety : thes 
Kennebunkport, Me. (types), 2.1 x .75 mm. 3507 
Islesboro, Me., 2.15 x .75 mm. 346 
Aroostook Co., Me., 2.00 x .75 mm. ans 
Hartland, Vt., 2.0 to 2.10 mm. long. ae NG 
/ Bobcaygeon, Ont., Can., 2.00 x .70 mm. 35.0" 

Ottawa, Ont., Can., 2.10 x .65 mm. 2\.0° 
‘Winnipeg, Manitoba, 2.05 x .75 mm. Bloc 
‘Huron Mtn., Marquette Co., Mich., 2.05 x .75. 36,6 

Lime Id., Chippewa Co., Mich., 2.0 to 2.1 mm. long. 

Gogebic Lake, Ontanogen Co., Mich., 2.0 to 2.1 mm. long. 

White Earth Lake, Minn., 2.1 mm. long. 

The Ottawa shells are the most slender that I have seen. 

All of the Michigan C. exile in the collection of Mr. Bryant 
Walker are var. canadense with the exception of one lot from Shelby, 
Macomb Co., which measures 1.75 to 1.80 mm., and a lot from Sag- 
inaw where they run from 1.7 to 1.9 mm. 

The only southern shells which I have seen approaching var. can- 
adense in size is a lot collected by Herbert H. Smith in mountain 
forests near Princeton, Ala. These measure 1.90 x .70 mm., and 
are unusually heavily ribbed, but other shells collected in the same 
general locality are typical exile. 

Plate VIII, where the figures are magnified 18 diameters, shows the 
difference in size very plainly. 

C. exiguum also appears to run somewhat larger in the North, but 
as there is more variation in this species than in erz/e, the northern 
race is not well defined. The average size of exiguum is about 1.75 x 
-75 mm., but there is a wide variation as shown by measurements 
given below: 


140 THE NAUTILUS. 


Valley Head, Ala., 1.55 x .65 mm. 

Lemon City, Fla., 1.60 x .70 mm. 

Staten Island, N. Y., 1.65 x .75 mm. 

Edgeworth, Pa., 1.70 x .75 mm. 

Des Moines, Iowa, 1.85 x .75 mm. 

Towa City, Iowa, 1.80 x .70 mm. 

Crooked Lake, Emmet Co., Mich., 1.75 to 1.85 mm. 

Kennebunkport, Me., 1.85 x .80 mm. 

Pigeon Lake, Ont., Can., 1.90 x .80 mm. 

Orono, Me., 1.80 to 1.90 mm. 

Ann Arbor, Mich., 1.65 to 2.00 mm. 

Huron Mtn., Marquette Co., Mich., 2.15 x .85 mm. 

These figures seem to indicate an increase in size in the north, but 
the Ann Arbor lot shows almost as much variation as in the balance 
of the range. The Huron Mountain shells are unusually large, much 
larger in fact than any others seen from Michigan, and their size is 
probably due to favorable environment as in other parts of the state 
typical shells are found. 


EXPLANATION OF PLATE VIII. 


Fig. 1. Carychium exile canadense n. y., Kennebunkport, Me. 
2.1x.75 mm. 


? 


Fig. 2. Carychium exile canadense n. v., Winnipeg, Manitoba, 
2.05 x .75 mm. 

Fig. 3. Carychium exile Lea, topotype, Wissahickon Cr., Phila., 
Pa., 1.70 x .60 mm. 

Fig. 4. Carychium exile Lea, Mt. Vernon, Va., 1.50 x .55 mm. 

Fig. 5. Carychium exile Lea, Edgeworth, Pa., 1.75 x .60 mm. 

Fig. 6. Carychium exile canadense n. v., Ottawa, Ont., Can., 
2.10 x .65 mm. 

Fig. 7. Carychium exile canadense n. v., Huron Mtn., Marquette 
Co., Mich., 2.05 x .75 mm. 

Fig. 8. Carychium exiguum Say, Huron Mtn., Marquette Co., 
Mich., 2.15 x .85 mm. 

Fig. 9. Carychium exiguum Say, Valley Head, Ala., 1.55x.65 mm. 

Fig. 10. Carychium stygium Call, cotype, Mammoth Cave, Ky., 
2.00 x .85 mm. 


THE NAUTILUS. 141 
A NEW SUBSPECIES OF POLYGYRA MULTILINEATA SAY. 


BY WM. A. NASON. 


Polygyra multilineata algonquinensis n. subsp. 


The shell is smaller than multilineata, color varying from white 
translucent to dark horn or chestnut, banded with reddish-brown or 
unicolorous, rather thin and fragile, peristome moderately reflected, 
white. 

Greater diameter 17 mm., 32 specimens. 

Greater diameter 17.5 mm., 24 specimens. 

Greater diameter 18 mm., 72 specimens. 

Greater diameter 18.5 mm., 41 specimens. 

Greater diameter 19 mm., 54 specimens. 

Algonquin, McHenry Co., Illinois. 

Cotypes in collections of Bryant Walker, Acad. Nat. Sci. Phila., 
Chicago Academy of Sciences, and Arthur F. Gray. 

All the specimens collected were examined, 284 in number, and 
their average size is expressed in the above table of measurements. 
The largest specimens found were three which measured 21 mm. in 
greater diameter, and the two smallest specimens only measured 
14.50 mm. in greater diameter. No larger specimens than those 
mentioned were found in the region, although the ground was well 
explored for many years, 

The specimens were all found in crevices and hollows about the 
roots of a clump of willows, growing in a marshy and boggy place. 
Associated with them were numerous specimens of Polygyra mono- 
don Rack., Succinea ovalis Say, Pomatiopsis lapidaria Say, Pyra- 
midula striatella Anth., and other moisture-loving land shells. 

A comparison made with 48 specimens of P. mudtilineata from 
Ohio, Michigan, and other localities, in my collection, showed great 
difference in measurements. 33 specimens of this series measured 
22 mm. to 24 mm. in greater diameter, and only two specimens 
were as small as 21 mm. in diameter, 

The uniformity of size of the variety algonquinensis, the fact that 
no other forms or sizes of the species were found in this region, and 
the fact that they breed true, for the series was the result of three 
years’ collecting on the same small space of ground, entitles this shell 
to varietal rank. And also, the perfect development of all the char- 
acters, as found in the normal P. multilineata, and the fact that this 


142 THE NAUTILUS. 


new subspecies is not in any way pathological, confirms the claim. 
The smallest forms mentioned above are as well characterized and 
symmetrical as the largest forms. 

An interesting fact in regard to the specific value of the bands in 
this variety is exhibited by two or three specimens. In these the 
shell is unicolorous until half-grown, and banded from that point to 
the reflected lip. And one specimen is the reverse in this respect, 
being banded when young, and later in its growth unicolorous. 
This would seem to indicate that the bands and color are not even a 
stable individual character. 


LYMNAEA HINKLEYI N. SP. 


BY FRANK COLLINS BAKER. 


Shell varying from ovate to globose, very thin; color of periostra- . 
cum light greenish-horn ; surface dull to slightly shining, rough, the 
growth lines uneven and raised at intervals to form pseudo ribs; the 
surface is sometimes malleated and occasionally ornamented by five 
or six heavy spiral ridges; fine spiral, impressed lines present and 
very marked in some specimens; whorls 3+ (the apex invariably 
decollated), rounded, tumid in some specimens, the last whorl glo- 
bose ; spire of variable length but generally shorter than the aperture, 
broadly conic ; sutures distinctly appressed and frequently distinctly 
impressed ; aperture roundly ovate, not expanded, acutely narrowed 
at the posterior angle; outer lip thin, acute; inner lip very tightly 
appressed to the parietal wall, where it shows as a very thin wash of 
eallus; the anterior part of the inner lip is reflected over the umbili- 
cus, leaving a very small chink; axis slightly twisted, forming a dis- 
tinct ascending plait. 

Length 12, breadth 8.5, aperture length 8, breadth 5 mm. 

Length 11.5, breadth 7.5, aperture length 7.25, breadth 4.5 mm. 

Length 12, breadth 7.75, aperture length 7, breadth 4 mm. 

Length 11, breadth 6.75, aperture length 6.25, breadth 3.75 mm. 

Length 15.25, breadth 9.25, aperture length 10.5, breadth 5.5 mm. 

Length 11, breadth 6.75, aperture length, 6.5, breadth 3.75 mm. 

North fork Snake River, East Idaho. Collected by Mr. A. A. 
Hinkley in 1905. Types: Chicago Academy of Sciences ; cotypes: 
Academy of Natural Sciences of Philadelphia, and Mr. A. A. 
Hinkley. 


THE NAUTILUS. 143 


This is apparently a very distinct species and does not appear to 
be exactly comparable with any Lymnea. It was thought to be ZL. 
binney?, but the shell is very much smaller and thinner, with no um- 
bilicus and without the acute spire of binneyi. It apparently belongs 
to the typical group of Lymnea despite its globose shape, which might 
place it in Radix, excepting for the lack of the raised and continuous 
lips of the aperture. It has something of the aspect of a young 
Bulimnea. 

I take great pleasure in naming this species in honor of Mr. A. A. 
Hinkley, of Du Bois, Illinois, in whose collection the shells were 
found. 


NOTES. 


Nore on soME NAMES IN THE VOLUTID&.—A revision in which 
I have been engaged for some time of the nomenclature and classi- 
fication of the Volutidz, has shown several errors which have attained 
a wide currency owing to the failure of authors to attend to the de- 
tails of early publications on the subject. This has rendered it 
necessary to give new names to several groups, and to shift some 
names to groups agreeing with their original types, which had been 
neglected or lost sight of. Some of the more conspicuous instances 
are as follows: 

Adelomelon Dall; new name for the dull-colored group of South 
American volutes usually called Seaphella, but not the Scaphella of 
Swainson, 1832. Type, Voluta ancilla Solander. 

Harpulina Dall; new name for Harpula auct. non Swainson, 
1832. Type, Voluta arausaica Solander, 1786. 

Maculopeplum Dall; Type, Voluta junonia, Lamarck. This was 
originally included with the species of Scaphella by Swainson, whose 
type was Scaphella undulata Lam., but the American shell belongs 
to a totally different group from the enamelled species for which 
Swainson’s genus was proposed. Amoria Gray, is probably a syno- 
nym of Scaphella. 

Volutilithes Swainson, was proposed for the shells to which Fischer 
later gave the name of Hopsephea. The type is Voluta muricina 
Lam. The shells typified by Voluta spinosa, and which are usually 
called Volutilithes, will probably take the name of Plejona Bolten, 
1798. 


144 THE NAUTILUS. 


When discussing the Volutide in the Wagner Inst. Transactions 
in 1890, I stated that I had not attempted to revise the nomen- 
clature of the group at that time; but if I had been aware of the 
serious reformation needed in the accepted nomenclature, 1 should 
have felt obliged to undertake it without delay.— Wa. H. Dart. 


PUBLICATIONS RECEIVED. 


Loess Papers: The Loess of Nachez, Mississippi; The Loess 
and the Lansing Man; Loess and the Iowan Drift ; Evidences (?) 
of Water-deposition of Loess. By B. Shimek (Bull. Lab. Nat. 
Hist. Iowa State University, V., no. 4). The question of the genesis 
of the loess of the Mississippi Valley has interested two generations 
of geologists. Until quite recently the great majority of American 
writers,and among them Prof. Shimek himself, ascribed its deposition 
to the action of water. Later studies by Shimek, covering ex- 
posures over practically the whole loess area, caused him to advocate 
the view that our loess is of Molian origin. This thesis is dis- 
cussed with great ability, and it is not possible here to give an ade- 
quate outline of the argument. It is shown that the highest and 
thickest deposits of loess lie along the larger streams, and their 
deposition by water would require vast inland lakes, of which there 
are no traces of shore-lines. The fine and homogeneous deposits: 
containing fragile shells unbroken and unworn, are not such as would 
be deposited by aqueous action. Moreover, fluviatile shells are ab- 
sent, the loess fossils being chiefly land shells, and exceptionally 
those of small pools. A great mass of evidence, geological and 
faunal, is brought forward to show that the loess is of the nature of 
an upland dune formation. 

The argument for eolian origin from the fossil shells will be read 
with great interest by conchologists. Prof. Shimek’s thorough knowl- 
edge of both the loess and the modern faunas enables him to deal 
hard blows to those who attempt to defend the aqueous theory on 
paleontologic grounds. The last essay of the series is a damaging 
critique of the papers of Prof. G. Frederick Wright and Luella A. 
Owen. There are fourteen excellent plates, two representing fossil 
land shells of the Nachez loess. 

This brochure contains the most complete and authoritative exposi- 
tion of the subject of loess formation in the English language, and 
will be invaluable to all students of the loess and its fossils.—H. A. P. 


v THE 


NAUTILUS 


A MONTHLY JOURNAL 
DEVOTED TO THE INTERESTS OF 
CONCHOLOGISTS 


VOL, XX. 
MAY, 1906, to APRIL, 1907. 


EDITORS AND PUBLISHERS: 


H. A. PrisBry, Curator of the Department of Mollusca, Academy of Natural Sciences, 


PHILADELPHIA. 


C. W. JOHNSON, Curator of the Boston Society of Natural History, 
BOSTON. 


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INDEX 


TO 


THE NAUTILUS, VOL. XX. 


INDEX TO SUBJECTS, GENERA AND SPECIES, 


Abalones and the earthquake . : ’ . 135 
Abalones and the penal code of Galifaraey . 85 
Alabama, some shells of digi aah and . 34, 40, 52 
Amphigyra Pilsbry, n. gen... . 49 
Amphigyra alabamensis Pilsbry, n. sp. (PL. III, figs. i 2). 50 
Anodonta imbecillis Say . : : : : ‘ . 69 
Anostoma, on the generic name. : - ee 
Ashmunella rhyssa Ckll. (Pl. VIII, figs. 3. 5). . 134 
Ashmunella rhyssa edentata . : : ; ; . 135 
Ashmunella rhyssa hyporhyssa. ; . 135 
Ashmunella a townsendi Bartsch (PL. VILL, foe 
hid). : ; : , . 133 
Ashmunella, notes on some a Nev Mecioun d : . 133 
Athleta rarispina : : . 131, 142 
Basommatophora, two new cniaan sari af 3 . 49 
Bifidaria agna ee & Vanatta (figs. 1, 2,3)  . . 141 
Boreocheton ; ; ; : jo ahi tie 
Brachypodella, a synonym nae : ; ; . 47 
British Columbia shells . : : : ; : . 9% 
Brooklyn Conchological Club . ; : . 89 


(iii) 


iv THE NAUTILUS. 


Bulimulus dormani . g : J) 8 
Busyeon montforti NERGN Nn. sp. (PL. VI) : . 120 
Calliostoma carnicolor Preston, n. sp. (Pl. VIII, i 5 6). 140 
Cardium from Puget Sound, a new. : eae 
Cardium (‘Cerastoderma) fucanum Dall, n. sp. : . 112 
Cayuga Lake, land shells from the east shore of . . 100 
Cazenovia, N. Y., mollusks of . : : : : beds IT 
Chiton marmoreus var. caeruleus Winkley : > “66 
Chitons, remarks on certain New aan ; : . 62 
Chloritis edwardsi_ . : 5 : . 47 
Cleopatra multiliarata mene | Nn. sp. } . 45 
Cleopatra smithi Ancey, n. sp. . , : ; : . 45 
Cochlhopa rowelli in California. : ; : val 
Correspondence ‘ . 142 
Cypraea bernardinae Beason Nn. sp. (PL. VILL, fig. 8) . 139 
Cyrena (Polymesoda) panamensis . : : ; Sie 
Donax cayennensis . : ‘ ; : ; : «ues 
Donax denticulatus . : : : ee 
Drymus dominicus é : 4 ; } A 7, 24 
Drymeus dormani . : : : h : : 7, 24 
Drymeus multilineatus . ; ; ; : »| 24 
Dyakia, note on. : : . 47 
Epiphragmophora (Atncracionta) Titan Clapp, n. sp. 

GPa HEX) ne ; . 136 
Epiphragmophora (Nmerariontn) hiataornl on fhe soft 

anatomy of 5 : : : . 138 
Epiphragmophora kelletti and E. aera ‘ 13 
Epiphragmophora stearnsiana Gabb . i : 13, 61 
Epiphragmophora tudiculata, a healthy colony of (PL. 

BA Oe : : 3 ; : ‘ Puig 
Everglades, peleC net in the 3 ; : : : eg 
Euryeelon crassa Hald. . 5 ; : 42 
Fulgur, from Florida, a new fossil (Pl. VI) : : 121 
Glabaris Gray, or Patularia Swainson, note on the genus. 39 
Glyptostoma newberryanum . A : ; : ies 
Haliotis californiensis ‘ ; ; ; ; eS6 
Helix arbustorum in Iceland . ; L : 1/98 


Helix hortensis in Newfoundland . : L : . 94 


THE NAUTILUS. v 


Helix hortensis on Magdalen Island. i i . 105 
Helix hortensis, on the distribution in North berentels 

of ‘ . 13, 95 
Helix jejuna Gay, Pe ee to Praticolella ; : . a2 
Helix subglobosa . ; ‘ silage et 
Insufficiency of an poeeenlcn as a are a asaeation 

in the round-mouth shells. : : . 91, 102, 113 
Lepyrium, note on . . ; : : ; P 40 aL 
Lepyrium showalteri . : F : : : : 12 OL 
Lymnea dalli Baker, n. sp... ; : , ? . 125 
Lymnexa danielsi Baker, n. sp. : ; Z . dd 
Lymnea leai Baker, n. sp. j : : . . 126 
Lymnza megasoma Say . ; ; : 5 . 86, 83 
Manatee snail, Bulimulus dormani . ; : ; 11616 
Microstoma hanleyanum Jous. . ; : : . 47 
Mississippi, some shells of Alabama code ‘ 34, 40, 52 
Mitra picta Reeve, note on : : <1 ee 
Mumford collection of shells . . 119 
Nebraska, a list of shells from. ! : : . 81 
Neoplanorbis Pilsbry, n. gen. . . 50 
Neoplanorbis tantillus Pilsbry, n. sp. (PL II, figs. 3-5). 51 
Neritina showalteri . E . . Ly): Ba 
Nicaragua, shell collecting on the Pee of ‘ : 1 
Notes. ‘ , . 9, 24, 36, 46, 71, 83, 94, 105, 118, 144 
Oklahoma, mollusks of . : 1/16 
Omphalotropis macromphala Eveg: = 0. eae! WM. 

Moll. . ; ‘ : : : : 47 
Oysters carried by Aaa ; , . 94 
Paravitrea aldrichiana, n. sp. (PI. v, Sind 8-11) «109, 111 
Paravitrea from Alabama, new species of ; . 109 
Patularia swainson, notes om the genus Glabaris Gray or. 39 
Pearls, output of American. : ; : d 19 
Pisidium fragillimum Sterki, n. sp. é t . 18 
Pisidium friersoni Sterki, n. sp. . ; . 20 
Pisidium levissimum Sterki, n. sp. . . ; 40 MS 
Pisidium minusculum Sterki, n. sp. ; : « A 
Pisidium neglectum Sterki, n. sp. . 87 


Pisidium neglectum var. ( ?) sianilenans Sterki, n. var, 88 


vi THE NAUTILUS. 


Pisidium planatum Ancey : : : : ! . 46 
Pisidium proximum Sterki, n. sp. . f , : jE 
Pisidium subrotundum Sterki, n. sp... : ; pe 
Pisidium succineum Sterki, n. sp. . : : : 2ag8 
Pisidium superior Sterki, n. sp. . ; ; ; TRS 
Pitar (Hysteroconcha) dione . : ; . 2 
Plejona, Bolten. : ; 130, 143 
Pleurotoma (Genota) Bae Gabb (Pl. II, figs. 
1-3). 2 


Pleurotoma (Ganota): cooperi heal (PI, II, fig. 10). 38 
Pleurotoma (Genota) riversiana Raymond (PI. II, fig. 9). 39 
Pleurotoma (Genota) stearnsiana Raymond (PI. II, figs. 


4-6) . : 38 
Pleurotoma (Geno) pone Gabb (Pl. LT, bon 7, 8). 38 
Pleurotoma, the West American species of 37 
Polygyra (Stenotrema) brevipila Clapp, n. sp. (Pl. v, 

fig. 1-4) , : 3 . 110 
Polygyra (Stenotrema) albapins Pilkey, (PL. v, figs. 5-7). 111 
Pomatiopsis Winkleyi Pilsbry . : : ; 2 . 48 
Popular conchology . : g : : : male. 
Praticolella jejuna Say . : ; ; , . 33, 46 
Pseudopartula, note on . : : ; f . AT 
Psilocochlis Dall, note on the genus . A : : . 128 
Psilocochlis meealliei Dall. ‘ . 128 
Publications received . 11, 36, 47, “11, 84, 96, 106, 119, 143 
Quadrula trapezoides Lea. : ‘ ‘ E : . 68 
Ravenel collection . 3 4 ; 2586 
Richfield Springs, New York hele’ of . 4 : . 89 
Seala berryi Dall, n. sp. . : . 127 
Seala (Cerostrema) no Tiereyenels Dall, n. sp. , . 128 
Seala from California, three new species of . ; . 127 
Seala lowei Dall, n. sp. ¢ ; : ! . 44 
Scala rectilaminata Dall, n. sp. : : ; : . 127 
Scallops, migrations of . : . 83 
Segmentina armigera Say (PI. ‘VIL SAS. re 3). : . 123 
Segmentina crassilabris Walker, n. sp. (Pl. VII, figs. 4-6). 122 
Segmentina wheatleyi Lea (Pl. VII, figs. 7-9). : wee 


Sitala, a new Chinese , ; : j ; : it e® 


THE NAUTILUS. vii 


Sitala hangchowensis Pils., n. sp... : : ; =; os 
Sphaerium from Illinois; a new : : : / , gY 
Sphaerium hendersoni Sterki, n. sp. : , F . 69 
Sphaerium, on the pathology of : ; ‘ : gS 
Sphaerium solidulum ; : F . 2 
Sphaerium stamineum forbesi Bakes, nm. var. . ‘ ito Oe 
Stenotrema altispira Pilsbry (Pl. V, figs. 5-7). ABO! 
Stenotrema brevipila Clapp, n. sp. (Pl. V, figs. 1-4). FIO 
Stenotrema from Alabama, new species of : ; . 109 
Strigilla carnaria . : : ; : ure 
Subspecies, mutations va fees : : ; . . 58 
Tellina (Eurytellina) angulosa. ; , ; ; a 
Tivela mactroides. : : : A : , PICS 
Tomogeres Montf. . : ; : A : , Mall 3 | 
Tonicella blaneyi Dall : + ,62, 65 
Tonicella ruber var. index Balch, n. var. : : «+ 66 
Trachydermon ruber. , : : : . 62 
Unionidae, some observations on ihe ova of , . 68 
Unionidae of Kansas. F : : : . 144 
Valvata bicarinata Lea (Pl. I, #e 14) é eee 
Valvata bicarinata connectans Walker, n. var. ; 30 
Valvata bicarinata perdepressa Walker, n. var. (PI. 1, 

figs. 15-16). : F ; > t } . 30 
Valvata, notes on. : p . 25 
Valvata lewisii Currier (PL. I, oo 12:13 i ; 29 
Valvata sincera danielsi Walker, n. var. (PI. I, figs. 10, 

Bey 1): F : ; . 28 
Valvata sincera Say (Pl. L, fia. 1- 6) ; ; . 26 
Valvata sincera nylanderi Dall (PI. I, figs. 7- 9) : Mans 
Vitrea approxima and V. vanattai, note on . 57 
Vitrea (Paravitrea) aldrichiana Clapp, n. sp. (PI. v, fae 

8-11) . : ; ; ; ; . 109 
Volutidae, a review of ies icrahiean : 129, 142 
Ward, Henry A. (obituary) . : : ; : . 48 
Winkley collection of shells. : : : . 118 
Wisconsin shells, list of . : ; ; . 22 


Zonitoides alliaria in Colorado. ; : ' : . 144 


viii THE NAUTILUS. 


INDEX TO AUTHORS. 


Aldrich, :T.. Hi. . ; : : ; , ; : » 121 


Ancey, C.F. . : : : ; : ‘ . 45, 47 
Baker, Frank C. : : 4 i ; eam e515 125 
Baleh, F. N.. : ; 4 : } : . 62 
Chadwick, G. H. : : ; : : EL Pf 
Clapp, Geo. H. . : ; F : ; ie} 105, 109, 136 
Cockerell, T. D. A. . ; : } : 58, 94 
Dall, Wm. H. . : ; . 30, 44, 111, 127, 128, 142 
Ferriss, Jas. H. : i 4 ‘ : : . 6) aise 
Fluck, W. H. . : : ; : ; : : Moat: 
Frierson, L. S. . : : : i ; f L . 68 
Gratacap, L. P. : : ; ° 5 ) Oh, 102,802 
Henderson, Jr., John B. . : ; ; Pas Jf) 
Henderson, Junius . ; : ; ; 2 : . 144 
Hinkley, A A. ; : : : : 34, 40, 52 
Johnson, Charles WwW. 5 f . : f 46, 73, 95 
Kelsey, F. ae ‘ : : 5 é . ( a | 
Latchford, F. R. : ; ; i : : : 88 
Nason, Wm. As. 141 
Pilsbry, Henry A. 5, 11, 32, 47, 49, 51, 51, 72, 119, 133. 138, 140 
Preston, H. B... . 189 
Raymond, W. J. : } ‘ ; : : : Naa 9 | 
Reynolds, A. G. : : f : é : : Re 
Rous, Sloman . : ; ; ; : : : 1 on 
Rowell, Rev. J. , i A : : : ee | 
Simpson, Charles T. : f : f : : . 24 
Smith, Burnett. . , , : : : 4 . 128 
Smith, Maxwell. ; : ‘ : 89 
Sterki, V. . ; : : ; ; 5, la 1%; 69, 87, 98 
Vanatta, BE. G. . A : é } 95, 140 
Walker, Bryant f A : : 25, 57, 81, 106, 122 
Wheat, Silas C. ; ; ; : 89, 100 
Williamson, Mrs. M. Burton r é : , : 71, 85 


Stearns, R. E. C. , } t : , ! : : 135 


fee NAUTILUS. 


VoL. XX. MAY, 1906. No: 1. 


SHELL-COLLECTING ON THE MOSQUITO COAST OF NICARAGUA—VI. 


BY W. H. FLUCK. 


Tellina (Eurytellina) angulosa Gmel. Abundant on the beach all 
along the coast from Bluefields to Cape Gracias & Dios. The dead 
shells found were almost always in perfect condition, not even the 
hinge ligament injured. Live shells in the shallow water on quiet 
days. ‘This is the most highly colored bivalve on the cost. 

Tellina ( Cyclotellina) fausta Donovan. Plentiful in the shallow 
water about the Man of War Keys. 

Sanguinolaria (Psammotella) operculata Gmel. A common shell 
on the sandy beaches of the Mosquito Coast. Walpa Siksa is a good 
locality for it. This very beautiful shell is not as brilliant as 7. 
angulosa, but is larger. 

Sanguinolaria rosea Lam. This beautiful pink shell is by no means 
numerous along the east coast of Nicaragua. I searched the beach 
and shallow water almost daily for four years, but succeeded in find- 
ing four specimens only. It inhabits deep water, possibly. It is 
altogether too fragile to stand the pounding of the surf. 

Asaphis deflorata Linn. Abundant in the shallow sea and pools 
at King’s Keys and the other islands along the coast. Itseems to be 
variable in color, being pink, cream, blue, and white. 

Strigilla carnaria L, Very abundant. I found two sizes ; large, 
full-grown forms fairly plentiful, and young, brighter colored half- 
sized specimens, in large quantities. They occurred thus so regu- 
larly that I was persuaded they were two distinct species. I felt the 
more certain of this since in the larger forms the ligament was in 


2 THE NAUTILUS. 


every case more deeply seated. However, both Mr. C. W. Johnson 
and Dr. W. H. Dall assured me that the smaller form was young 
and the larger ‘ typical.” 

Iphigenia braziliensis Lam. My specimens, with the exception 
of a few dead shells, were found at or near the mouth of the Wawa 
river, where it is plentiful. It is a dweller of estuaries. 

Donax denticulatus L. This is by far the most abundant bivalve 
on the Caribbean coast of Nicaragua. All the native children, 
Indian, Creole, as well as the Spanish speaking ones gather it in 
large basketfuls for the family larder. At low tide these beautiful 
‘‘ wedges ”’ are to be seen all over the beach in favorable places, sit- 
ting up in the sand, thin end (posterior) down, with about one-third 
of the broad anterior exposed, the shell a little open and the siphons 
at work with every rush of the water as the waves come in and roll 
out. Donax is either stupid or without fear, for it seldom trys to 
escape by digging, on being approached, as do the Solens. The shell 
is very variable in color and radiations. I have a series of about 25, 
all different. Wounta Haulover. 

Donax cayennensis Lam. Inhabits the same localities and the 
same sandy stations between tides as the former, but it is not any- 
thing like as numerous. It is a larger shell than denticulatus, witha 
more angular anterior ridge, and is more uniform in color, not vary- 
ing much from pure white, although some specimens tend to bluish, 
yellow, or purple. Prinzapolka was the first locality at which I 
found this shell, but one always find them wherever D. denticulatus 
is to be had. A very good authority wrote me some time ago; ‘ In 
going over the Donacide in the museum, I find no characters to 
separate Lamark’s Donax cayennensis from the Donazx striata L.” 
I have never seen the latter form. Can these names be synonyms ? 
Both D. cayennensis and D., denticulatus are called ahi by the native 
Indian population. The former they regard as the male and the 
latter as the female. Afi means dimple. Is not that more beauti- 
ful than wedge ? 

Pitar (Hysteroconcha) dione L. Very abundant. I shall never 
forget finding my first specimen of this beautiful, sulcate, spinose 
shell. The Indian boy who was with me further increased the 
pleasure of the find by telling me that they were manas, without 
number. I soon found that he was not far from the truth. Wounta 
Haulover seems an ideal place for this species, the shore and bottom 


THE NAUTILUS. 3 


being sandy, the sea open with no bars, and the only rocks too far 
out to be of any injury to their fragile spines. Wounta Haulover. 

Chione cancellata. A variety. Much worn odd valves only. 
Wounta Haulover, on the beach. 

Cyrena (Polymesoda) panamensis Prime. ‘This is the common 
bivalve of all the lagoons along the Caribbean coast of Nicaragua. 
It is not always found in the mud, although in the Bluefields lagoon 
it thrives in that kind of a station. At Wounta Haulover it lives in 
the lagoon back from the sea, on a sandy bottom, while at Karata it 
is to be found on the gravel. I have eaten very good chowder made 
of klito, as the Indians call it. The umbones are always, so far as I 
have observed, corroded in adult specimens. 

Tivela mactroides Born. This pretty little clam is quite common 
on the shore and in the shallow water along the open sea, The shell 
is solid and looks as though it might stand rougher water than it 
usually gets on the Mosquito Coast. Dr. Dall, in his ‘“‘ Synopsis of 
the Family Veneridae”’ is quite right in saying: “‘ This species may 
be white, or chestnut-brown or with brown rays on a lighter ground.” 
I have specimens that alternate with white and brown concentrically. 

Echinochama areinella li. A few dead shells, with one exception 
all left valves. 

Chama congregata Conr. Dead shells everywhere on the beach, 
especially left valves attached to old Pecten, Arca or Chione shells. 

Codakia orbicularis L. Plentiful about Man of War Keys; I 
also have a few from Pearl Key. 

Arca umbonata Lam. Man of War Keys. I found but one speci- 
men, although the Indian turtle-hunters, who frequent the Keys, told 
me that it was a very common shell at times. 

Scapharca ( Cunearca) incongrua, var. braziliana Lam. Wounta 
Haulover. Plentiful at all times on the beach, generally with hinge 
ligament perfect. Also found alive in the shallow water on quiet 
days. 

Arca (Argina) campechensis Dillwyn. Walpa Siksa, on the sea- 
beach, both north and south of the river mouth. 

Arca occidentalis Phil. Bilwi, just north of the Wawa river 
mouth, on the open beach. 

Melina ephippium L. Man of War Keys. Abundant. 

Pinna muricata L. I never found a living shell, but good speci- 
mens of dead ones were to be found at almost any time on the beach, 


4 THE NAUTILUS. 


especially about the sand-bars and in the coves at and near the mouth 
of rivers, as at Wawa, Wounta, and Walpa Siksa. 

Pecten dislocatus Say. Wounta Haulover. A few single valves. 

Plicatula ramosa Lam. Wounta Haulover. Found attached to 
soft corals, sponges, and like marine growth. Numerous. 

Ostrea virginica Gmel. A very abundant shell in all the lagoons 
and estuaries, not far from the sea. It seems to multiply very fast, 
filling up harbors and channels. It does not get as large as our 
northern oysters, possibly on account of the large quantities of fresh 
water that cover them for protracted periods during the rainy season. 

Discinisea antillarum D’Orb. Wounta Haulover. I found six or 
eight on an old Pinna. These little brachiopods remind one of 
miniature Anomia simplex. 

Helicina amoena Pfr. In native clearings in the forest along the 
Wounta (or Kukallaya) river, northwest of the village of Kukallaya. 

Helicina dalli Bartsch. Near Wani, Nicaragua. 

Nephronaias flucki Bartsch. From the Wounta river, a day’s 
paddling by canoe to the northwest of the village of Kukallaya. 

Streptostyla flucki Bartsch. Near Wani. 

Neocyclotus (Neocyclotus) chrysacme Bartsch. Near Wani. 

Chrondropoma callipeplum Bartsch. Near Wani. 

The region about Wani is quite different from the low, sandy, 
coastal-plain. It takes many days’ canoe paddling, according to the 
volume of water in the river, to reach it. It is in what the Indians 
call the ‘hill country.” 

The five last-named shells are new. Dr. Paul Bartsch, who has 
seen my entire collection, is at this writing publishing descriptions of 
them. 

I have a few more Mosquito Coast shells which I might add to 
this list, but will not do sonow. At some future time I shall ask for 
space for another article. 

I am convinced that the shells I collected in the lowlands of east- 
ern Nicaragua do not by any means exhaust the molluscan fauna of 
that region. The highlands of the interior, the mangrove swamps, 
rivers, lagoons, sea beaches, and the keys, all have treasures for the 
man who has time to search for them. As for myself, I picked up 
only such shells as I stumbled over in the strenuous pursuit of other 
duties. 


THE NAUTILUS. 5 
A NEW CHINESE SITALA. 


BY H. A. PILSBRY. 


Sitala hangchowensis n. sp. Shell subperforate, trochiform with 
rounded periphery, pale brown, surface dull, smoothish, under the 
compound microscope showing dense, vertical striation, most distinct 
on the penultimate whorl, and very fine, close spiral impressed lines, 
the base distinctly striate spirally, with finer spirals in the intervals 
between coarser lines. Spire conic with nearly straight outlines. 
Whorls 6, decidedly convex, the last rounded peripherally and convex 
beneath. Aperture somewhat oblique, lunate, the margins thin and 
simple ; columella concave below, vertical with reflexed edge above. 
Alt. 3.7, diam. 4.1 mm. 

Hangchow, China. Types no. 91131 A. N.S. P., from no. 1074 
of Mr. Hirase’s collection. 

It is not easy to decide whether this species should be considered 
a Sitala or a Kaliella, but on account of the fine spiral striation it 
probably accords best with the first. It is larger than Kaliella de- 
pressa and K. monticola Mlldff. with fewer whorls, 6 instead of 64, 
and it has a dull, not glossy surface. 


NEW SPECIES OF PISIDIUM. 


BY V. STERKI. 


PIsIDIUM PROXIMUM, n. sp. Mussel of medium size, moderately 
to rather well inflated, outlines oval without any projecting angles, 
posterior margin slightly subtruncate in some specimens, beaks 
somewhat posterior, rather broad to narrow, rounded, or their cen- 
ters more or less flattened, with a ridge around the flattened area in 
some specimens ; surface with irregular, fine to rather coarse striae 
and several lines of growth, shining, color light yellowish-horn to 
brownish ; shell opaque to subtranslucent, thin; hinge slight, cardinal 
teeth of various shapes ; ligament rather long. 

Long. 5.6 alt. 4.8, diam. 3.4 m. ( Wash.) 

Long. 6 alt. 5 diam. 3.8 m. (B. C.) 

Long. 4.1 alt. 3.5, diam. 2.5 m. (B. C.) 

Habitat: Washington, British Columbia: Walla Walla sent by 
B. Walker, a good number of specimens deep horn to brownish, 


6 THE NAUTILUS. 


beaks rather broad and moderately elevated ; ‘a small pond, Second 
Summit, B. C., at alt., 6000 ft.” (collected by O. W. Spreadborough, 
1905, sent by J. F. Whiteaves), about eighty specimens ; somewhat 
larger than the Walla Walla form, of light color becoming brownish 
over the beaks in older specimens, then with irregular, alternating 
zones of lighter and darker; the beaks are more elevated and in 
many specimens narrower. Although of rather different appearance, 
the two Pisidia seem to be of the same species. ‘‘ Pond at head of 
North Fork of Caribou Creek, East of Burton City, West Kootenay, 
B. C.” (by same); considerably smaller, but seem identical; the 
beaks are full and prominent, the disks rather flat towards the in- 
ferior margin. 

This Pisidium is under doubt as to its affinities. While apparently 
somewhat like some forms of abditum Hald., it has also resemblance 
with a South American Pisidium which I take for boliviense Sturany. 
More materials from other places may help answering this question. 
Our Pacific Slope Pisidia, and more so those of Central and South 
America are still very insufficiently known. 


THE MANATEE SNAIL BULIMULUS DORMANI.* 


The sooty mould of the orange, Meliola, is one of the most serious 
results of white fly infestation of citrus groves, and is an element in 
the injury to various plants from aphids and from some of the scale 
insects, especially the Lecaniums, mealy-bugs, wax scales, and cot- 
tony cushion scale. The fungus is not itself a parasite on the plant, 
but a saprophyte, deriving its sustenance from the sweet honey dew 
secreted by these insects. The injury to the plant results from the 
smothering action of the fungus, the heavy coating of fungal threads 
interfering with the healthful action of sunlight on the leaves. The 
appearance of the various ornamental and hedge plants is also dis- 
figured by the dark fungus. The sooty mould is especially bad fol- 
lowing the white fly attack, owing to the large amount of honey dew 
secreted by these insects. As the white fly larve attach themselves 
to the under side of the leaves, the honey dew exuded by them falls 
to the top side of the leaves beneath, thus affording favorable oppor- 
tunity for the growth of the fungus. So constant is the association 


1 Press Bulletin No. 59, Florida Agricultural Experiment Station. Depart- 
ment of Entomology. 


THE NAUTILUS. 7 


of the fungus and the white fly that badly infested groves and hedges 
may be recognized at some distance by the heavily coated dark foli- 
age. The fungus develops on the fruit as well as on the leaves and 
stem, and washing becomes necessary, resulting not only in an added 
expense, but also in increased danger of decay in shipping. In this 
connection the habits of the tree snail, Bulimulus dormani, ' are of 
the greatest interest. This snail has been found in the orange 
groves in Manatee county feeding upon the sooty mould. Just how 
long the snail has been present on orange trees in this county it is 
impossible to say. It was observed as long as two years ago by Mr. 
F. D. Waite, at Palmetto. It seems to have been present in small 
numbers in other groves at this time, but attracted no further atten- 
tion until the present summer. The snail is now widely distributed 
in Manatee county, occuring in many groves on botii sides of the 
Manatee river. The work of the snails is very characteristic. 
When well started they occur in great numbers on the tree, spread- 
ing over it from base to top. Its favorite food seems to be the sooty 
mould. The fungus is cleaned from the leaves, stems, and fruit. 
The leaves thus cleaned have a glossy, shiny appearance as though 
free from white fly. The fruit thus cleaned has a better color and 
probably ripens earlier. In addition to the fungus, the snail takes 
algz and some lichens from the stem and trunk, giving the trunk a 
much cleaner and fresher look. The trees that are cleaned stand 
out conspicuously from the surrounding trees by their bright foliage 
and clean trunks. The snails increase rapidly under favorable con- 
ditions. The eggs are probably deposited in protected places about 
the trunks of the trees, possibly also about the base of the tree under 
leaves and other rubbish. That the snails are capable of doing ef- 
fective work, when present in sufficient numbers, has been shown in 
numerous groves in Manatee county during the present summer. 
Such trees in these groves as are well stocked with the snails have 
been thoroughly cleaned, the fruit not requiring washing. 

The snails are of medium size, measuring when full grown, three- 
fourths to one inch in length. The shells are smooth, white, or 
corneous-white, and with about four bands of brown spots. Old 


1 This species is now placed in the genus Drymeus. A closely allied species, 
D. dominicus Rve. (B. marielinus Poey), is also common throughout southern 
Florida, and frequently confounded with dormant. It probably has similar 
feeding habits. —Eprrors. 


8 THE NAUTILUS. 


shells have often a somewhat corroded surface, the bands becoming 
indistinct or absent. When the conditions are unfavorable, either cold 
or dry, the snails take refuge in the hollows of the trees or under 
leaves accumulated in the forks, or elsewhere, or under sacks at the 
base of the trees when these are provided. It thus becomes an easy 
matter to transfer them from tree to tree. A few snails placed by 
Mr. Wade Harrison in one of his trees in March, increased in such 
numbers as to free the tree of sooty mould by mid-summer of the same 
year. The snails are known to range with some variation from the 
mouth of the St. John’s river on the north, to the Caloosahatchie river 
on the south. The species is probably native to Florida, as speci- 
mens in small numbers were observed about the hummocks and else- 
where as long as fifty years ago. Its habit of feeding on the sooty 
mould of the orange, however, was not known until within the past two 
years. 

In view of the fondness of the snails for the injurious sooty mould 
fungus, it becomes of first importance to observe their treatment of 
the beneficial fungi. Among the fungi parasitic on orange insects 
there are four species of inestimable value to orange growers. These 
are the brown fungus well known as an effective parasite on the 
white fly larve; the red-pink fungus also parasitic on the white fly ;. 
the red fungus, and the gray-headed fungus, both parasitic on the 
common scales. The brown fungus so effective in control of the white 
fly, as is well-known, throws out spreading hyphe for some distance 
around the body of the dead leaves. It seems that the snails occasion_ 
ally feed to a limited extent on these spreading hyphe, but evidently 
not enough to interfere with the spread of the fungus, since this fungus 
is doing particularly effective work in the groves in the Manatee region 
where the snails occur; the red-pink fungus is also abundant in the 
groves where the snails occur and is untouched by them. ‘The snails 
have not been observed to feed on either the red or the gray fungi 
parasitic on the common orange scales, and it is probable that they 
have no taste for these parasitic fungi. Colonies of the snails are 
being started in parts of the State where the white fly injury is severe 
and where conditions seem favorable for the growth of the snail. It 
is desirable that close attention be given to the habits of the snail, as 
well as to means of protecting colonies against unfavorable conditions. 
A few sacks thrown around the tree seems to afford a needed protec- 
tion against unusual cold. It is probable that sprays can not be used 


THE NAUTILUS. 9 


on trees stocked with the snails without injury to the colony, for, 
although protected by the shell from the immediate effect, sufficient 
spray probably clings to the sooty mould on which they feed to de- 
stroy them. The beneficial parasitic fungi and the snails may be 
allowed to work together on unsprayed trees. The snail is here 
spoken of as the Manatee snail since while recorded as occurring in 
other parts of the State it was found working on the orange groves 
first in the Manatee region. 


NOTES. 


Collecting in the Everglades. 1 have recently returned from a col- 
lecting trip in the Everglades. Most of the collecting was done at a 
point where the Big Cypress Swamp and the Everglades meet, about 
80 miles from Myers and 35 miles from Immokalee P. O. Drymaeus 
dominicus Reeve was found inthe air-plants. Dead shells of Glandina 
truncata var. minor, were plentiful, but live ones scarce. A few 
Zonitoides arboreus were also found in air-plants. Polygyra cereolus 
var. carpenteriana and uvulifera I did not collect. Beautiful speci- 
mens of the glossy, dark, amber-colored Physa cubensis Pfr., were 
found on the under side of the leaves of water plants. Planorbis 
intercalaris Pils., and P. tumidus were very plentiful, the latter in 
the more shallow water. <Ancylus pentnsulae Pils. & Johns., was 
found on decayed wood in the Cypress Swamp. Ampullaria depressa 
is abundant on the edge of the Everglades. The shells are heaped 
around isolated cypress trees, where they are dropped by the 
hawks which feed upon them ; a bright yellow variety without bands 
is occasionally found. A small Unio was common ina stream near 
Immokalee. ; A. G. REYNOLDs. 


Outrut oF AMERICAN PEARLS.—Dealers in American pearls 
state that the past season showed a diminished output of fine gems, 
but a gain in the traffic in baroques or pearl formations of irregular 
shapes. 

The most valuable pearl discovered last season was taken from the 
Wabash river, near Mount Carmel, Ill. This was a pink-white gem 
of eighty grains, and is valued by its owner at $8000. 

A pearl valued at $5000 was found in a mussel shell taken from 
the Skillet Fork river, Carmi, Il]. Other pearls, worth from $500 
to $3000, were found last year; but such fortunate discoveries were 
considerably fewer in number than in former years. 


10 THE NAUTILUS. 


Nearly every year witnesses a shifting of the pearl-hunting indus- 
try. The Kankakee river, Indiana, was the newest field last sea- 
son, and some valuable gems were found there. 

Of late, French buyers have been actively represented in the 
American market. The activity of these foreign buyers, together 
with the diminished supply, was largely responsible for the fact that 
prices at the close of the season ranged from 25 to 85 per cent. higher 
than they did a year before. 

Despite the fact that American pearls now command a higher 
price than ever, the volume of business has shrunk because of the 
destruction of so many of the mussel beds. 

In one year the output of the rivers of Arkansas was valued at 
$2,000,000. Last year, some experienced dealers assert, the value 
of the whole American product, exclusive of baroques, was not worth 
more than $500,000. 

Dealers charge that many fine pearls are rendered valueless by 
the practice of button houses, and those who fish for them, of throwing 
mussels into hot-water vats, in order to open great quantities of shells 
rapidly. These button houses seek the mother-of-pearl in the shells. 

Baroques, or pearls of irregular shapes, have attained a prominent 
place in commerce. Some of them have a sheen or opalescence 
equal to the quality of the finest gems. 

Until recently, pearl hunters sought only symmetrical shapes, and 
the baroques were left as playthings for children along the streams, 
or were cast aside. 

The influence of the “new art”’ originated a demand for these 
angular, irregular and eccentric formations. 

Jewelers now use the baroques in making scarf pins, chrysanthe- 
mums, figures and ornaments. 

The long and narrow shapes, especially, lend themselves with 
readiness to the jeweler’s art. As many of these odd formations 
were found to have attractive color, lustre or iridescence, the public 
soon found a liking for them.—Worth American. 


CoOcCHLIOPA ROWELLI IN CALIFORNIA.—In response to an inquiry 
in the December NauTiLus concerning the habitat of this species 
a single note has been received, referring to the original finding of the 
shell. It has apparently not been found since. The note follows: 
“ Cochliopa Rowelli, was named from shells collected by me, near 
Baulinas Bay (not Clear Lake) Marin Co., California.””—J. Rowell. 


THE NAUTILUS. 11 


ON THE GENERIC NAME ANOSTOMA.—At the time I prepared a 
monograph of this genus (Man. of Conch., XIV, p. 109, 1901) I did 
not notice that two modifications of the same name were already in 
use : Anostomus Klein in Walbaum, Pet. Arted., Gen. Pisc., III, p. 
659, 1792, and Anastomus Bonnaterre, Encycl. Méth., Ornith., p. 
xciii, 1790. Whether these conflict with the molluscan Anostoma 
depends upon whether the different spelling be held to constitute a 
different name—a question still in dispute. Zomogeres Montf. is the 
next name applied to the molluscan Anostoma.—H. A. P. 


On THE PaTHOLOGy oF SPpH#RIUM.—Among thousands of 
Spherium solidulum Pr., in company with several other species, from 
Des Moines, Iowa, collected and sent for examination by Mr. T. van 
Hyning, there were several dozen specimens of special interest, ab- 
normal and evidently of a pathological nature. They were consid- 
erably smaller than the average, almost globular, the beaks being 
nearly as broad as in the normal form—apparently representing a 
distinct species. At the anterior margin of the shell there was a 
more or less marked scar, contiguous to the anterior adductor muscle 
and the lateral teeth. This was evidently caused in all specimens 
by one and the same agency, probably a parasite affecting the mantle 
edges in some way and thus causing the deformity of the shell. And 
the effect was not only local, as is evident by the fact that a coarse 
line of growth, from that place, all around both valves is noticeable 
in nearly all specimens thus affected, and the normal growth of the 
whole mussel was checked. Some larger specimens, of more or less 
irregular growth, show the same scar at the same place, in some in- 
stances only slightly marked. 

Similar mussels have been noticed before, from other places, but 
never in such numbers. Also some Pisidia were seen similarly af- 
fected. It is hoped that fresh, living specimens will be obtained, in 
order to ascertain the cause of the deformity.—V. STERKI. 


PUBLICATIONS RECEIVED. 


CATALOGO DE Los MOLUSCOS TESTACEOS DE LAS ISLAS FILIPI- 
nas, JoLO y Marianas. 1, Motuscos Marinos, por J. G. Hidalgo, 
1905, xvi+ 408 pp. Since 1840, when the description of Cuming’s 
rich collection was begun, the Philippines have been noted for the 
great number and beauty of their marine shells. A very large num- 


1 THE NAUTILUS. 


ber of species was first described from there, and in critical researches 
on other Indo-Pacific faunas, constant reference to and comparison 
with Philippine topotypes is necessary. Several years ago Elera 
published a catalogue of the fauna, compiled from previous mono- 
graphs, etc., but without new material or critical knowledge of the 
mollusks themselves. Dr. Hidalgo has given many years to the 
study of the Philippine fauna and has condensed his results in the 
catalogue before us. 3121 species are admitted, and 704 others, 
cited from the Philippines on insufficient grounds, are enumer- 
ated. Those species actually seen by the author are indicated by a 
*, and it will be noticed that a large majority are so marked. This 
gives the records an authenticity far beyond that of a mere compila- 
tion, and is a feature of special value since many of the former 
Philippine citations rested upon Cumingian records only. <A figure 
of each species is cited. This is not only a convenience, but of great 
value as showing the exact form intended, a significant point in these 
days of nomenclature changes. In his views of specific limits, Hi- 
dalgo takes the middle course, conservative as Crosse and von 
Martens may be said to have been, but not reactionary as Tryon was 
in the earlier volumes of his Manual. The use of genera is open to 
some criticism, from the retention of names such as 7rzton, Vertagus, 
etc., now generally held to be untenable. The localities of each 
form are fully recorded, most of these records being new. 

The typography of the volume is excellent. A portrait of the 
author is given as frontispiece. 


Dr. Hidalgo proposes to give in the second part of the Catalogo, 
an enumeration of the land and fresh water mollusks. These cata- 
logues do not replace the more extensive monograghic account of the 
fauna which is appearing at intervals in the handsomely illustrated 
Obras Malacologicas of the same author. The elaborate design of 
the latter renders its publication a work of many years. Meantime 
those interested in Indo-Pacific faunas will find the Catalogo one of 
the most useful of the many scholarly works we owe to the disting- 
uished Professor of Malacology of the Madrid Museum. H. A. P. 


CATALOGUE OF THE LAND- AND FRESH-WaTER MOLLUSCA OF 
Tarwan (Formosa).—By Henry A. Pilsbry and Y. Hirase (Proc. 
A. N.S., Phila. 1905). In the island of Formosa 128 species of 
land shells are now known, 28 of them described in this paper. 
There are 26 species of fresh water mollusks. The affinities of the 
mollusks are chiefly with those of China, though there is some affinity 
to the Ryukyuan fauna. 


De IN-AUTILUS. 


VoL. XX. JUNE, 1906. No. 2. 


EPIPHRAGMOPHORA KELLETTII (FBS.) AND E. STEARNSIANA (GABB). 
BY GEO. H. CLAPP. 


Recent writers on American conchology have united these two 
species, the latter as a variety of the former, but a careful study of 
large series of both shows that Gabb was correct when he identified 
and named stearnsiana as a distinct species. 

Forbes’ original description of Helix kellett?i was published in P. 
Z. S., 1850, p. 55, and the type is figured on Pl. IX, 2a,b. He 
was, however, badly mixed on his localities as he says: ‘Of the 
genus Helix there are nine species. Of these H. townsendiana, 
nuttalliana ard columbiana are certainly from the neighborhood of 
the Columbia river. Helix kellettii and pandore, both new, are prob- 
ably from the same country, though the box in which they were con- 
tained was marked ‘ Santa Barbara.’ Helix areolata bears no indi- 
cation of its locality.” 

Through the kindly offices of John Ponsonby, Esq., of London, 
England, 1 was enabled to enlist the services of Edgar A. Smith, 
Curator of Conchology, British Museum, and he sent me a colored 
drawing of the type, which agrees very closely with Forbes’ figure, 
and at the same time he checked up Forbes’ measurements and 
found them correct, but was unable to count 6 whorls, unless any- 
thing over 5 is called 6. 

With this as a starting point and a large series of shells from 
Santa Catalina Is., and the mainland from San Diego to Rosario 
and Cedros (Cerros) Is., Lower California. I have tried to sepa- 
rate the two species with the following result: 


14 THE NAUTILUS. 


In looking up the literature, I found that there was considerable 
diversity of opinion and that authors were not always careful to 
follow the original description. Binney in Terr. Moll. 1V, 17, 
copied Forbes’ description and remarks verbatim and copied Forbes’ 
fiz. 2b on his P]. LX XVI, fig. 12. 

Pfeiffer in Mon. Hel. Viv. III, 182 changed Forbes’ description 
which gave the size as 22x 19x 19 m.m., whorls 6, to size 24x 20 x 
16 m.m., whorls 5. 

Tryon in Mon. Terr. Moll. U. S., p. 66 (Am. Jour. Conch. I, 317, 
Pl. VI, fig. 1.) translates Forbes’ description, but his fig. 1, Pl. VI 
looks as if it might have been drawn from a specimen of . arrosa 
marinensis. 

Binney in Terr. Moll. V, 361 translates Forbes’ description ver- 
batim, but figures a large depressed shell from Santa Catalina Is., fig. 
242, and says:—‘‘ I am positive that it is correctly referred to kel- 
letti.”’ In his remarks he refers to the peculiar sculpture where he 
says :—‘* There are traces on different parts of each shell of three 
different kinds of sculpturing; the wrinkles of growth, revolving 
impressed lines, and a series of minute granulations running obli- 
quely, sometimes almost perpendicularly, to the incremental wrin- 
kles.”’ This is an important observation. 

This description and remarks are copied in Binney’s Manual, pp. 
149-150. There is a typographical error on p. 150 where he says 
that Forbes’ original figure is copied in Terr. Moll. V; the reference 
should be to Vol. 1V; Pl. LX XVI, fig. 12. 

Without attempting to give a full bibliography it is only necessary 
to say that Cooper, Gabb, Newcomb, Carpenter, Stearns and Hemp- 
hill have all written on the subject in various publications. 

Gabb published the description of Helix stearnsiana in Am. Jour. 
Conch. III, 235, Pl. 16, fig. 1. He gave the number of whorls as 
54, but did not state the size. The type is in the collection of the 
Acad. Nat. Sciences of Philadelphia. 

Binney and Bland in L. & F.-W. Sh., I, 177, changed Gabbs’ 
description somewhat, giving the number of whorls as 5 and adding 
the size 22x17x12 mm. This attitude must be the length of the 
axts, as the flattest shell that I have seen is 155 mm. high, a single 
specimen, while the others run from 16 to 214 mm. 

In Terr. Moll. V, 862, Binney repeated the description of L. & 
F_W. Sh. adding notes on the anatomy and comparing with that of 


THE NAUTILUS. 15 


kellettii. This is copied verbatim in Manual Amer. Land Shells, p. 
151. 

In examining a large series of kelleftdi from Santa Catalina I found 
one shell which agrees exactly with Forbes’ original description and 
figure, and the later figures sent me by Mr. Smith, in size and color, 
but it has 5 whorls instead of 6. A/l of this lot, about 90 shells, 
have the peculiar sculpture noted by Binney while none of the 
stearnsiana from the mainland of L. Cal. have it, and as Mr, Ponsonby 
informs me that this sculpture appears on Forbes’ type, I think we 
can safely limit hel/ettdd to Santa Catalina Is, 


) 


| 


Fig. 1. Embryonic whorls of Z. kellettiti Fbs. ‘‘ The isthmus,” Santa Catalina I.; 
shell 26 mm. diam. 

Fig. 2. #. stearnsiana Gabb, San Diego; shell 26 mm. diam. 

Fig. 3 shows Fig. 1 superposed upon Fig. 2, the latter in stippled line. All 
figures x 10. 


The sculpture of the embryonic whorls of the two species also in- 
dicates that they are distinct, that of hedlett’? consisting of very weak 
radial lines, not waved, so that the whorls appear almost smooth, 
while in stearnsiana it is a very closely set series of wavy lines, gen- 
erally bifurcate at the suture, giving tle surface a granulated appear- 
ance under low magnification. The accompanying figures show the 
difference in size of the embryonic shells of the two species, figs. 1, 2, 
and in fig. 3 the drawings are superimposed to bring out the difference 
more distinctly. 

A series of 58 kelletti? from Santa Catalina shows a variation in 
greater diameter of from 214 to 27 mm., whorls from 5 to 54. 26 
stearnsiana, mostly from San Diego, vary from 20 to 25} mm., 
greater diameter, whorls 5 to 6. 

Figuring both series into percentages :— 

Of 58 kellettii 27 or 46.5 per cent. have gr, diam. 25 to 26 mm. 


16 THE NAUTILUS. 


Of58 “« 43 or 74.1 percent. have gr. diam. 24 mm., and over. 

Of 26 stearnstana 12 or 46.1 per cent. have gr. diam. 23 to 24 mm. 

Of 26 aS 21 or 80.7 per cent. have gr. diam. 24 mm. and 
under. 


Of 58 kellettii 56 or 96.5 per cent. have whorls 5 to 5+. 

Of 26 stearnsiana 19 or 73.1 per cent. whorls 54 to 53. 

A series of 31 kellettii, selected by Hemphill to show variation in 
size, shape and color, but not included in above lot, are from 204 to 
31 mm. gr. diam., whorls 44 to 53; 23 or 74.2 per cent.; one 24 mm. 
and over and 18 or 58.6 per cent. have 5 to 5+ whorls. 

Summing up: Z. kellettit is the species found on Santa Catalina 
Island, having a large embryonic shell with smooth whorls, surface of 
all the later whorls faintly granulated; generally over 24 mm., 
greatest diam.; whorls 5. (On the mainland at Pt. Vincent, Los 
Angeles Co., Hemphill found dead shells which agree exactly with 
those from Santa Catalina, but could find none alive). #. stearnsiana 
is confined to the mainland and the islands of Lower California. 
Embryonic shell smaller, sculptured with wavy lines giving it a 
granulated appearance, remaining whorls smooth except for lines of 
growth and sometimes faint revolving lines; greater diam. generally 
under 24 mm., whorls 54 to 53. 

There is a wide variation in size, color and shape in both species 
and a number of the forms of kellettii have been named by Hemp- 
hill. Measurements below show largest, smallest, most elevated and 
most depressed of 89 kellettii and 26 stearnsiana in my collection. 

E. kellettit, largest, 31 x 26 x 23 mm. whorls 54. 


‘6 smallest, 20} x 174x164 mm. whorls —6. 
33 elevated, 26 x 234.x 25 mm. whorls 53. 
2. depressed, 26 x 21x 18 mm. whorls 5. 
E. stearnsiana, largest, 254 x 22x 214 mm. whorls 6. 
6 smallest, 20 x 17x 154 mm. whorls 5+. 
“ elevated, 21 x 20} x 203 mm. whorls 54. 
= depressed, 23 x 194x 16 mm. whorls 5}. 


MOLLUSKS OF OKLAHOMA. 


BY JAS. H. FERRISS. 


Few if any shells have been recorded from Oklahoma territory. 
No state or territory in the Union has figured so little in concholo- 


THE NAUTILUS. 17 


gical literature. In 1897 I collected a few hours in Oklahoma City, 
obtaining the following species : 


Polygyra texasiana (Moric). Planorbis bicarinatus (Say). 
Polygyra monodon (Rack.). Planorbis parvus (Say). 
Helicodiscus lineatus (Say). Physa sp. 

Zonitoides minuscula (Binn.). Lampsilis anodontoides (Lea). 
Zonitoides arborea (Say). Lampsilis purpuratus (Lam.). 
Zonitoides nitida (Mull.). Lampsilis gracilis (Bar.). 
Euconulus fulvus (Miill.). Lampsilis parvus (Lea). 
Strobilops affinis (Pils.). Quadrula lachrymosa (Lea). 
Pupoides marginatus (Say). Quadrula pustulosus (Lea). 
Bifidaria armigera (Say). Tritogonia tuberculata (Bar.). 
Bifidaria contracta (Say). Symphynota complanata ( Bar.). 
Lymneza probably techella(Hald.). Sphzrium sp. 

Planorbis trivolvis (Say). Pisidium sp. 


NEW SPECIES OF PISIDIUM. 


BY V. STERKI. 


Pis. minusculum, n. sp. Mussel minute, slightly oblique, medium 
inflated; superior margin short, moderately curved, bounded by 
slightly projecting, rounded angles; supero-anterior and posterior 
slopes little curved or straight, posterior end rounded, anterior a 
rounded angle situated much below the median longitudinal line, 
inferior margin rather well curved; beakes slightly posterior, rather 
large, rounded or somewhat flattened, moderately projecting over 
the hinge margin; surface with very fine, slight strize, somewhat 
shining, color pale horn, shell translucent; hinge rather stout, car- 
dinal teeth: the right strongly curved, its posterior part much 
thicker and grooved, left anterior rather short, well curved, the 
posterior longer, oblique, curved; ‘ laterals” strong, the outer ones 
in the right valve well formed; ligament, short, thick. 

Long. 2.2, alt. 1.8, diam. 1.5 mill. 

Habitat: Fox river, Wisconsin, collected by the late Geo. H. 
Marston; types in the collection of the University of Wisconsin and 
that of the Carnegie Museum. 

A number of specimens of this little Pis’dium was received in 
1895 and then recognized as a new species, and again in 1904, when 


18 THE NAUTILUS. 


the Marston collection was revised. In spite of its small size, it 
ranges under the group Rivulina, and has resemblance, in shape, 
with forms of P. compressum Pr. and with handwerkii St.; from the 
latter it is easily distinguished: it is smaller, more oblique, its beaks 
are comparatively broader, more posterior, and less elevated, its striz 
much finer and slighter. 

Pis. fragillimum, n. sp. Mussel rather small, inequipartite, ob- 
lique, well inflated ; superior margin short, nearly straight, bounded 
by angles from which the supero-anterior and posterior slopes fall 
down nearly straight at first, then passing over the rounded anterior 
and posterior ends into the moderately curved inferior margin; an- 
terior part longer than posterior and anterior end narrower; beaks 
somewhat broad and full, well projecting over the superior margin, 
flattened on top: surface with very fine strie and a few slightly 
marked lines of growth, dullish, pale horn-colored ; shell subtranslu- 
cent, very thin and fragile; hinge very slight, short, but well formed, 
plate narrow ; cardinal teeth thin, lamellar, nearly straight and longi- 
tudinal, the right long, its posterior end not or slightly thicker, 
the left ones rather long, nearly parallel; “ laterals” slight, thin, 
the anterior short, their cusps close to the cardinals, especially so the 
left which is high, sharp pointed, abrupt, the right comparatively 
large; the outer ones of the right valve small but distinct and rather 
long ; ligament slight. 

Long. 3, alt. 2.6, diam. 1.8 mill. 

Habitat: Lake Geneva, Wisconsin, sent for examination by Mr. 
F. C. Baker. Types are in the collection of the Chicago Acad. Sce., 
and that of the Carnegie Museum. 

Although only ten specimens were seen, this Pis¢dium is quite 
distinct by its shape and the formation of the hinge; the shell is the 
thinnest and most fragile yet seen in Pisidia. The mussel has some 
resemblance in shape with P. walkeri St., but is much smaller, 
shorter, especially its anterior part, the surface sculpture is finer 
and slighter, and the hinge is quite different. Its closer affinities 
are yet unknown. 

Pis. levissimum, n. sp. Mussel small, somewhat elongate, slightly 
oblique, moderately inflated; superior margin moderately curved, 
posterior rounded, sometimes with a slightly projecting, rounded 
angle at the scutum; inferior slightly curved, supero-anterior slope, 
at some distance from the beaks, in some specimens straight or 


THE NAUTILUS. 19 


nearly so, in others obsolete; beaks rather broad, rounded or slightly 
flattened, little prominent over the upper margin; surface with very 
fine, slight, irregular striaw, shining; 
shell translucent to transparent; hinge very slight, long, curved, 
plate narrow; cardinal teeth: the right rather long, straight or 


slightly curved, longitudinal, its posterior end more elevated, slightly 


color pale horn to light amber, 


thicker and projecting downward over the hinge plate, the left ones 
rather long, 


(upper) slightly curved; +‘ lateral teeth’: the posterior much longer 


nearly longitudinal and parallel, lamellar, the posterior 


than the anterior, slight, curved, the right not raised in a cusp, the 
left with a slight cusp, the right anterior with a rounded, the left with 
a sharp and abrupt cusp, outer ones in the right valve wanting, or a 
mere trace of the anterior; ligament slight. 

Long. 2.5, alt. 2.0, diam. 1.4 m., the largest; average: 2.3 m. long. 

Habitat: Elk Rapids, Michigan. About 300 specimens were seen, 
at all stages of growth, most of them dead and bleached shells, sent 
for examination by Mr. F. C. Baker. Types are in the collection 
of the Chicago Acad. Se. and that of the Carnegie Museum. 

In shape and appearance, this Pis¢d/wm resembles a form of tenuis- 
simum St., but is much smaller and slighter, and the formation of 
the hinge is radically different, as ascertained on quite a number of 
specimens of both species. In fact, the ‘lateral teeth” are quite 
different from those of all other Pistdia seen. 

PisIDIUM SUBROTUNDUM, n. sp. Mussel small, moderately and 
regularly to rather well inflated; outlines oval to short oblong to 
nearly circular; superior margin straight or nearly so, as especially 
noticeable in younger specimens; beaks slightly posterior, rather 
broad (in most forms), moderately projecting over the hinge margin, 
thus completing the round outlines, except for the slightly project- 
ing angles at the scutum and scutellum ; surface with very fine, sub- 
regular to irregular strie and usually a few well marked lines of 
growth, dullish to somewhat shining; color horn or light amber to 
straw to whitish ; shell translucent (in the horn colored) to opaque 
(in the light colored specimens), thin; linge slight and teeth small; 
ligament rather short and slight. 

Long. 3.2, alt. 2.7, diam. 1.8 (100: 84.4: 56.3) average. 

Long. 3.6, alt. 3, diam. 2.3 (100: 83.3: 63.9) Albany riv. 

Long. 2.8, alt. 2.5, diam. 1.8 (100: 89.3: 64.3) Isle Royale. 

Hab.: New England, Anticosti Is., to Michigan. Jupiter river, 


20 THE NAUTILUS. 


Anticosti Is., Albany river, Ontario (W. McInnes ed., both sent by 
J. F. Whiteaves); ‘Vineyard,’ Pawtuxet, R. I., (J. F. Perry); 
several places in Aroostook co., Me., (O. P. Nylander); Pine river, 
Marquette co., and Oswald Lake, Mich. (B. Walker); Isle Royale, 
Mich. (University of Michigan; some other specimens from waters 
on the same island were under doubt). Specimens from Union 
springs, Ontonagon Co., Mich. (B. Walker), are of somewhat differ- 
ent shape: the beaks are more posterior and narrower, and the an- 
terior end is less broadly rounded. One good specimen was among 
fossils from Arnold’s Lake, Washtenaw Co., Mich. (B. Walker.) 

Examples of this Pisidium had been in hand for years, un- 
named, or a part doubtfully referred to other species. Since last 
year, several good lots from widely distant places came in and proved 
the species to be valid. 

PisIDIUM FRIERSONI n. sp. Mussel rather small, moderately in- 
flated, outlines somewhat angular; superior margin slightly curved 
or nearly straight, with projecting, rounded angles where passing into 
the supero-anterior and the posterior, which are well marked, and 
nearly straight, inferior moderately curved ; beaks scarcely posterior, 
projecting over the hinge margin, rather narrow, with a somewhat 
flattened central area; surface with very fine, subregular striz, dull- 
ish to somewhat shining, color pale horn to straw or whitish, shell 
translucent to opaque, thin, hinge comparatively rather stout; right 
cardinal tooth curved, its posterior end thicker and grooved, left 
anterior quite short, somewhat V-shaped, posterior rather short, rather 
steep oblique; outer laterals of the right valve distinct; ligament short. 

Long. 4, alt. 3.5, diam. 2.5 mill. 

Hab.: Louisiana, Texas, New Mexico, Colorado.—In 1899, Mr. 
L. G. Frierson sent me quite a number of specimens at all stages of 
growth, collected at Frierson, La.; they were regarded as repre- 
senting a distinct species, but shelved. Since then I have seen the 
same from Dallas (Cincinnati Museum) and Comal Co., Tex., the 
Gallinas river, Las Vegas, N. Mex., and a few from Denver, Colo., 
(T. D. A. Cockerell). 

The species seem to range under the group of P. noveboracense 
Pr., and so far as known, shows little variation. It has been named 
in honor of Mr. L. G, Frierson. 

Erratum.—NavtIiLus, February issue, p. 119, line 2 from top: 
after even, there should be a comma. 

New Philadelphia, Ohio. 


THE NAUTILUS. 21 
A NEW 8SPHAERIUM FROM ILLINOIS. 


FRANK COLLINS BAKER. 


Spharium stamineum forbesi nov. var. 

Shell of good size, inflated, solid, subequilateral, trigonal ; um- 
bones much elevated, rounded, somewhat inflated, placed a little an- 
terior of the center of the shell, marked by very fine, concentric 
lines of growth (sometimes coarser), the beaks very closely approxi- 
mating ; dorsal and ventral margins well rounded ; anterior end flatly 
rounded, posterior end plough-shaped ; both ends have a somewhat 
truncated appearance ; umbonal slopes convexly rounded; surface 
inclined to be shining, lines of growth rather crowded, fine in typical 
specimens, coarser in others; color light greenish or yellowish-born, 
lighter on the umbones, indistinctly rayed in some specimens; liga- 
ment weak, short, brownish in color; cardinal teeth similar in form 
and position to those of stamineum, the hinge-line not quite so thick 
as in stamineum; lateral teeth not quite so solid as in stamineum, the 
posterior laterals also being shorter, not reaching so high up into the 
arch of the hinge-plait, the comparative distance between the an- 
terior and posterior laterals being greater in forbes? than in stamineum ; 
muscle scars and pallial line rather distinct ; nacre faint bluish-white, 
with occasional darker zones. 

Length 14.50; height 11.50; breadth 8.00 mill. types. 
- P00, ") 10.00 oh eT 00H ne 
LZAOO) os 9.50 fi Gico «21 | Havana. 
ee EOD 8.50 ey BO Ok ue a 
be MO...“ 8.00 ( 66sd0) Re 

Thompson’s Lake, Fulton Co. (types) ; Matanzas Bay, Havana, 
Mason Co.; Little Fox River, White Co. Types :—Illinois State 
Laboratory of Natural History; topotypes, Chicago Academy of 
Sciences, Academy of Natural Sciences of Philadelphia. 

This apparently distinct variety of stamineum may be known by 
its peculiar trigonal shape, plough-shaped posterior end and elevated, 
inflated umbones. The ventral and dorsal margins are much more 
rounded than in stamineum and the lateral teeth are farther apart. 
The umbonal sculpture is typically very fine, but is also as coarse as 
typical stamineum in some specimens. 

The variety will probably prove to be acommon form in many 
localities and will be easily recognized and separated from typical 


22 THE NAUTILUS. 


stamineum. Twenty-two specimens from three localities show very 
little variation. 

I take great pleasure in naming this variety in honor of Prof. 5. 
A. Forbes, Director of the Illinvis State Laboratory of Natural 
History. 


LIST OF WISCONSIN SHELLS. 


Cc. H. CHADWICK. 


( Continued) 
C. Fresu-water UNIvALves. 

Carychium exiguum Say. Milwaukee. 

ee AE exile H. C. Lea. Milwaukee. 

Limnea stagnalis appressa Say. Menomonee River; Oak Creek 
near South Milwaukee ; Okauchee Lake and Deila- 
field, Waukesha Co., Two Rivers, Manitowoc Co. ; 
Lake Winnebago near High Cliff. 

‘© columella Say. Mill-pond at Delafield, Waukesha Co. 

“  — megasoma Say. Molas Creek, Manitowoc Co. 

“ reflera Say. Milwaukee and vicinity (abundant); Oak 

Creek, South Milwaukee ; Sand Ridge Creek, Kenosha 
Co.; Delafield, Waukesha Co. 

‘© palustris Miiller. Vicinity of Milwaukee ; North shore 
of Lake Winnebago. (‘ Var. michiganensis”? Walker 
is included), 

catascopium Say. Lake Michigan at Milwaukee. 


sf $s var. approaching LZ. emarginata Say. Lake 
Mich. 

‘© caperata Say. Vicinity of Milwaukee; Lake Winnebago. 

es cs umbilicata Adams. Milwaukee and south west- 


ward; Sand Ridge Creek, Kenosha. 

‘© humilis Say. Milwaukee (scarce). 

«© desidiosa Say. Milwaukee and vicinity (abundant); Two 
Rivers, Manitowoe Co.; North shore of Lake Winne- 
bago. 

Planorbis trivolvis Say. Milwaukee (common); Delafield and 
Okauchee, Waukesha Co.; Two Rivers, Manitowoc 
Co. 


es trivolvis (large form). Molas Creek, Manitowoe Co. 


THE NAUTILUS. taps 


Planorbis bicarinatus Say. Milwaukee and vic.; Golden Lake, 
Waukesha Co.; Little Cedar Lake, Washington Co., 
Lake Winnebago. 
J: bicarinatus striatus Baker. Milwaukee (fossil). 
cf campanulatus Say. Milwaukee aud vicinity (common); 
Delafield, Okauchee and Golden Lake, Waukesha Co.; 
Little Cedar Lake, Washington Co.; Two Rivers, 
Manitowoc Co.; Crystal Lake near Elkhart Lake. 
Planorbis hirsutus Gould. Two rivers, Manitowoc Co. 
“  deflectus Say. Vicinity of Milwaukee; Cedar Lake, 
Washington Co.; Two Rivers, Manitowoe Co. 
“© parvus Say. Milwaukee and southwestward. 
Seymentina armigera Say. Milwaukee and southwestward; Two 
Rivers, Manitowoc Co. 
Ancylus rivularis Say. Root River, Milwaukee Co. 
Ge paralellus Hald., var. St. Martin's, Milwaukee Co. 
& shimeki Pils. Near Wauwatosa, (one shell). 
Physa sayii Tappan. Milwaukee; Golden Lake, Waukesha Co.; 
Lake Winnebago near High Cliff. 
“¢  gyrina Say. Vicinity of Milwaukee and southwestward 
(abundant;) Sand Ridge Creek near Kenosha; 
Two Rivers, Manitowoc Co.; Lake Winnebago. 
- elliptica Lea. Vicinity of Milwaukee. 
‘© integra Haldeman. Milwaukee and vicinity (common;) 
Golden Lake, Waukesha Co. 
Aplexa hypnorum Linne. Milwaukee. 


Pleurocera subulare pallidum Lea (?) Lake Winnebago near 
High Cliff. 
ci elevatum Say. Milwaukee River at Lindwurm. 
Goniobasis livescens Menke. Milwaukee Riverand Lake Michigan. 
Amnicola limosa Say. Milwaukee River; Lake Michigan; Lake 
Winnebago near High Cliff. 


: ‘« parva Lea. Near Milwaukee. 

ae ‘¢  porata Say. Lake Michigan at Milwaukee. 

: lustrica Pils. Honey Creek near Layton Park, Mil- 
waukee. 

#6 cincinnatiensts Lea. Milwaukee and Menomonee rivers; 


Lake Winnebago near High Cliff. 
. enarginata Kiizster. Lake Winnebago near High Cliff. 


24 THE NAUTILUS. 


Somatogyrus subglobosus Say. Root River and Kinnikinnick 
River, Milwaukee Co.; Kenosha; Lake Winne- 
bago. 

Pomatiopsis lapidaria Say. Near Wauwatosa, Milwaukee Co. 

Valvata tricarinata Say. Milwaukee and vicinity (abundant); 

Lake Winnebago. 
= e simplex Gould. Lake Michigan at Mil- 
waukee 
“© bicarinata normalis Walker? North Milwaukee. 
ce sincera Say. Near Milwaukee. 
Vivipara contectoides W, G. B. Kinnikinnick River (one shell.) 
Campeloma rufum Haldeman, Okauchee Lake, Waukesha Co.; 
Little Cedar Lake, Washington Co.; Lake Winne- 


bago. 

: decisum Say. Milwaukee and vicinity; Root River, 
Milwaukee Co.; Two Rivers, Manitowoc Co.; Lake 
Winnebago. 


“ subsolidum Anth. Milwaukee and vicinity; Oak 
Creek, South Milwaukee; Molas Creek, Manitowoc 
Co. 
Lioplax subcarinata Say. Lenosha; Lake Winnebago. 


NOTES. 


In the May number of the NauTiLus in an extract from Bulletin 
49, Florida Agricultural Experiment station, the writer stated that 
he did not know how long the ‘Manatee snail (Drymeus dormant) 
had been living on orange trees in Manatee County. 

I lived in that county near Bradentown from 1882 until 1886, 
and during all my residence there diligently collected the land, 
fresh-water and marine mollusks of that region. During my resi- 
dence there I collected Drym@us dormant in moderate numbers liy- 
ing on the orange trees of a grove in hammock land west of Braden- 
town, and rarely on trees in a grove north of Manatee river. I also 
found a few specimens in the Foster Orange Grove south of Mana- 
tee. I found several hundred dead shells in the heavy hammock 
among live oaks north of the Manatee river, and rarely in the air 
pines on live oaks elsewhere, but I never considered it abundant any- 
where. 

It may be of interest to state that Mr. E. J. Brown, a neighbor of 
mine, has found a few specimens of the nearly allied species (D. 
dominicus) living on his grapefruit and orange trees, and two or three 
specimens of D. multilineatus on his trees. Drymaus dominicus is 
rather a scarce species in this region. Cuas. T. Simpson. 

Little River, Florida, May 21, 1906. 


THE NAUTILUS, XX PLATE I. 


WALKER, ON VALVATA. 


eee NAUTILUS. 


VoL. XX. JULY, 1906. No. 3. 


NOTES ON VALVATA. 


BY BRYANT WALKER. 


In 1824 Say described an ecarinate form of Valvata from the 
“ Northwest Territory” as V. sincera. In 1856 Dr. James Lewis 
described a somewhat similar shell from the Little Lakes, N. Y., as 
V. striata. W.G. Binney (L. & F. W. Shells III, 13.) in 1865, 
had ‘‘no doubt of its identity with V. sincera.” In this decision 
Dr. Lewis seems to have acquiesced as it is not mentioned at all in 
his “ L. & F. W. Shells of New York” (1874), nor was it listed in 
his collection. 

In 1868, however, A. O. Currier (Shell-bearing Moll. of Mich. p. 
9.) declared Lewis’ species to be a valid one and striata being pre- 
occupied proposed for it the name of lewisi7. 

Binney’s opinion seems to have generally prevailed among Amer- 
ican conchologists until within the last year, when Dr. W. H. 
Dall (Alaska XIII, pp. 22 & 23) declared them to be specifically 
distinct. 

From a critical study of several hundred specimens from more 
than fifty different localities, I have come to a similar conclusion, 
viz: that there are two distinct species which have hitherto passed 
as Say’s sincera. The one, smaller, more elevated, with a smaller 
umbilicus, the other, larger, more depressed and widely umbilicated. 
Both vary in sculpture from being nearly smooth, with subobsolete 
strie to very strongly sculptured forms in which the striz are ele- 
vated in “ thin, sharp lamellz.”’ 

Owing to the prevalent confusion of the two forms, the existing 


26 THE NAUTILUS. 


records afford but little information as to whether their distribution 
is the same or not. Taking them together, sincera is apparently a 
northern form ranging through Canada and the northern United 
States, from the Atlantic to the Pacific. Its range to the south 
seems comparatively restricted, especially in the eastern states, 
northern New York, Michigan, northern Illinois and Indiana, and 
Nebraska being apparently the southern limit, as it is not listed from 
Philadelphia (Shick) nor Allegheny Co., Pa. (Stupakoff), Cincin- 
nati (Harper & Wetherby), nor Tuscarawas Co., Ohio (Sterki), nor 
in any of the Iowa, Missouri, Arkansas or Kansas lists. J am in- 
formed by Mr. F. C. Baker that the southern range (south to Geor- 
gia and Louisiana) attributed to this species in his ‘‘ Mollusca of the 
Chicago Area,’”’ was a typographical error and should have been 
placed under V. tricarinata. In the extreme west, it would seem 
to range further south, as Dall quotes the broadly umbilicated form 
from the San Bernardino Mountains, Cal., and Utah. Ingersoll 
also (Rep. U. 8. G. & G. Survey, 1874, p. 390) quotes s¢ncera from 
Colorado and Uiah. The only Utah specimens I have seen, are 
rather referable to V. humeralis Say, and it is possible that all these 
extreme southwestern citations should be revised. 


VALVATA SINCERA Say, Pl. I, figs. 1-6. 

As Say’s type of V. sincera has not been preserved, in determin- 
ing which of the two forms, which have hitherto passed under 
that name, is to be regarded as sincera we are necessarily re- 
stricted to his original description and figure (a very poor one) 
and such legitimate deductions as can be drawn from the circum- 
stances under which his description was prepared, and his other 
writings. When Say described his new species in 1824, the only 
American species known to him was the typical V. tricarinata 
and his purpose was to differentiate these two forms. Owing, no 
doubt, to the striking and characteristic sculpture of V. tricarinata, 
Say omitted any description of general shape. He states that V. 
sincera is ‘*subglobose-conic ” and ‘‘ very similar ”’ to tricarinata, 
but with a *‘ rather larger”? umbilicus. And later in describing his 
V. humeralis, he states that it is “ subglobose ”’ and ‘‘ more depressed ”’ 
than sincera. It hardly seems possible that Say with his remarkable 
acumen and critical appreciation of minute differences, would have 
failed to call attention to the depressed form and very wide umbili- 


b] a9 


THE NAUTILUS. 27 


cus in differentiating his new species from ¢tricarinata, had he had 
before him a specimen of Jewisii7. Then too, his figure, whatever 
else may be said of it, was certainly never intended to represent a 
shell of that form. Say further describes his species as having the 
whorls “ finely and regularly wrinkled across.” An examination of 
Say’s descriptions of other species, especially his earlier ones, will 
show that he commonly used the terms ‘“‘ wrinkles ” and ‘ wrinkled ” 
in the same sense that today we would use striz and striate. Thus 
Polygyra albolabris, thyroides. profunda and sayii, Pyramidula soli- 
taria, Circinaria concava and Bulimulus dealbatus are characterized 
as “ wrinkled.”’ ulimulus multilatus is “ striated with regular ele- 
vated lines or wrinkles.” And Valvata humeralis is stated to be 
‘¢ wrinkled across or rather with slightly raised lines.” 

Taking all these things into consideration, we should say that 
Say’s sincera was a subglobose-conic shell, of about the same size and 
shape of V. tricarinata, but with a rather larger umbilicus and with 
accurately rounded, finely and regularly striated whorls. Shells 
answering very exactly to these requirements were collected by the 
Michigan Fish Commission in 1894, at High Island Harbor, Beaver 
Islands, Lake Michigan, and were listed as that species, though with 
no appreciation of its distinction from Jew?siz (Bull. Mich. Fish 
Com. No. 6, 99; Naut. IX, 5). And there would seem to be no 
reasonable objection to these being considered as typical examples of 
Say’s species. 

As shown by the figures (figs. 1-3) the general shape of the shell, 
with its ‘‘ accurately rounded ”’ whorls and round, deep umbilicus is 
in exact accord with the original diagnosis. The surface is sculptured 
with fine, close, regular, thread-like striz, with a marked tendency 
in many examples to rise in thin, sharp ribs approximating to those 
of nylanderi. But in no instance are these more elevated ribs as 
strongly developed as in that form, nor are they so widely spaced. 
The specimen figured has 33 whorls and measures: Alt. 4, diam, 
o. mm. 

Many of the spevimens have the apical whorls more or less deeply 
tinged with dull red, the rest of the shell is of a pale greenish, with 
the apical whorls nearly white in the unicolored examples. 

There is some slight variation in height and correlated with that, 
in the width of the umbilicus, but not sufficient to connect them 
specifically with the widely umbilicated /ew/sv7. 


28 THE NAUTILUS. 


Through the kindness of Dr. Whiteaves I have been enabled to 
examine some of the Anticosti shells referred to by Dr. Dall. Com- 
pared with the High Island specimens, these (figs. 4-6) are thinners 
less heavily striated, with a rather wider umbilicus, and the body 
whorl is less inflated, but they evidently belong to the same species. 

As above defined, V. sincera appears to be a less abundant species 
than Jewisti, but of considerable range, though apparently rather local 
in its habitats. Specimens have been examined from the following 
localities, in addition to those above mentioned : River Rouge, Wayne 
county ; Mill Lake, Lake county and Lake Michigan, off New York 
Point, Charlevoix county, Michigan; Pigeon Lake, Ontario and 
Milwaukee, Wis. Some immature specimens from Lake George, 
N. Y., should also probably be included. It has also been found in 
the marl deposits at Cement City, Jackson county; Ann Arbor; 
Monitor, Bay county, and Pine Lake, Charlevoix county, Michigan, 
and Caribou, Me. As all the marl specimens are decorticated, it is 
impossible to say whether they were originally typical sincera or var. 
nylanderi. 

V. SINCERA NYLANDERI Dall. PI. I, figs. 7-9. 


Judging from the suite examined, nylanderi (figs. 7 and 8) in its 
original locality is a well marked constant form, and standing alone 
might well be accorded specific rank. But as stated above, the 
specimens from High Island Harbor, show decided tendency to ac- 
centuate the striz, and in a considerable number from Isle Royale, 
Lake Superior (collection of 1905), where typical sincera is not 
represented, all the gradations from close, elevated ribs to the wide 
spaced lamellz of typical nylanderi are represented. So that there 
would seem to be no question, but that it is to be considered asa 
varietal form of Say’s species. This form in its various aspects has 
also been found in Cliff river and Pine Lake, Marquette county, 
Michigan; Little Lakes, N. Y., and Lake Geneva, Wis. An un- 
usually elevated example from Isle Royale, is illustrated by fig. 9. 


V. SINCERA DANIELSI, n. v. PI. I, figs. 10 and 11. 

Shell larger and proportionately higher than the typical form; 
whorls 4, finely and regularly striate, very convex with a deeply im- 
pressed suture. Aperture entire, scarcely appressed to the body 


whorl. 
Alt. 6, diam. 5.75 mm. 


THE NAUTILUS. 29 


Cannon Lake, Rice county, Minn., Types No. 22475, coll. 
Walker. Cotypes in the collections of L. E. Daniels and the Phila- 
delphia Academy. Sixteen specimens of this fine large form were 
collected by Mr. Daniels. They differ uniformly from the High 
Island typical form in the particulars mentioned. 


VALVATA LEwIsiI Currier. Pl. I, figs. 12 and 13. 


Dr. Lewis distinguished his V. striata by reason of its having the 
‘¢ epidermis brown and very regularly striate.” In the same paper 
(Proc, P. A. N. S., 1856, 260) he describes “ V. sincera” from the 
same locality as having the ‘‘ shell smooth and polished, white and 
translucent.’”’ While unfortunately he does not seem to keep any 
examples of his typical str/ata in his own collection, there is a set 
from the Little Lakes labelled “ sincera” which agrees with his de- 
scription and which are the same as the form herein described as V. 
bicarinata perdepressa. This leaves practically no doubt as to his 
striata being the ordinary striate form. 

V. lewisti in its aggregate form is exceedingly variable in regard 
to sculpture, ranging from the smooth or obsoletely striate var. heli- 
coidea to a heavily ribbed form in which the ribs become low, closely 
spaced lamella very similar to the Isle Royale form of sincera 
nylander?. In well developed examples of this form, the ribs give a 
brownish appearance to the shell, especially when not well cleaned, 
and it is possible that such specimens were the types of Lewis’ species, 
and if varietal distinction were to be made between this and the more 
common form in which the sculpture is ‘ fine and close like the wind- 
ing of thread on a spool,” it should be considered as the typical 
lewisii.! From the material before me, however, I fail to find suffi- 
cient evidence of any racial distinction in this particular, (as there is 
apparently in the case of V. sincera nylander?) to justify such action. 
The two forms apparently live together and grade indefinitely into 
each other. 

V. BICARINATA Lea. PI. I, fig. 14. 

When I prepared my former paper on Valvata (Naut., XV, p. 123) 
I had not seen Prof. B. Shimek’s ‘‘ Mollusca of Eastern Iowa,” 
(Bul. Lab. Nat. Hist. State Univ., Ia., I, p. 56, 1888) in which the 


a 


1This will have to be determined from examination of authentic author’s 
specimens which I have not been able to obtain. 


30 THE NAUTILUS. 


For comparison with the other forms herein discussed, a typical 
example is figured. 

V. bicarinata has recently been collected by Messrs. H. H. Smith 
and A. A. Hinkley at several localities in Alabama, greatly extend- 
ing its range towards the south. 


V. BICARINATA CONNECTANS N. v. 


Unicarinate, only the superior carina present, peripheral and basal 
carine obsolete, periphery rounded, base rounded or subangulated. 
Type No. 24142, coll. Walker. Lake Michigan, New Buffalo, Mich., 
also Lake Ontario, N. Y. Cotype in collection of L. E. Daniels, 
LaPorte, Ind. 

Apparently of rather rare occurrence as only two specimens, were 
collected by Mr. Daniels in a considerable amount of material from 
several localities along the south shore of Lake Michigan. A single 
specimen also was found ina small set of V. bicarinata perdepressa 
from Lake Ontario, N. Y., received from Mr. F. C. Baker. This 
specimen is of special interest as illustrating the relation of this form 
and the succeeding one. Beginning as a typical connectans, the 
carina disappears about the beginning of the last whorl which is that 
of a typical perdepressa. 


V. BICARINATA PERDEPRESSA n. v. PI. I, figs. 15 and 16. 


Shell broadly umbilicated, very much depressed, often planorboid. 
Ecarinate, whorls regularly rounded, occasionally subangulated 
around the umbilicus or at the periphery, smooth or obsoletely striate, 
frequently obscurely malleated, especially on the lower half of the 
whorl, very pale horn-colored, unicolored or with the apical whorls 
more or less tinged with dull purple or red. Types (No. 24123, 
coll. Walker) from Lake Michigan at Michigan City, Ind. Also 
from Lake Michigan at Chicago, Ills., Millers, Ind., New Buffalo, 
Mich., Lake Erie at Sandusky, Ohio, Lake Ontario at Jefferson 
county and ?, N. Y., and Little Lakes, N. Y. Cotypes in 
the collection of L. E. Daniels, LaPorte, Ind., and the Philadelphia 
Academy. 

This form is very abundant along the south shore of Lake Michi- 
gan. It would be taken for a smooth form of V. lewisi7, were it not 
for the connecting links with V. bicarinata afforded by the occasional 
subangulated individuals and bicarinata connectans. It is very vari- 


THE NAUTILUS. 31 


able in shape, ranging from planorboid with the apex depressed 
below the level of the body whorl to specimens with the apex quite 
as much elevated as in the ordinary specimens of Jewis?7. In sculp- 
ture it varies from almost perfectly smooth to a striation nearly as 
strong as that of typical dewisi?. Indeed the more elevated and 
strongly striated examples standing alone would unhesitatingly be re- 
ferred to that species. 

Dr. Dall, who kindly compared specimens with his V. lewisti heli- 
cotidea writes: ‘The figured specimen (helicotdea) should have (to 
be adult) about one-half more whorl than it has in the figure. Some 
of yours, if the same view be taken, are almost exactly like the speci- 
men figured. But, on comparison of adults, it is evident that the 
lewisti helicoidea has a smaller umbilicus ; and, taken in profile, is less 
flattened. Your specimens, too, are on the whole smoother and 
more polished. The value of these differences remains to be deter- 
mined.” 

The wider umbilicus in the Lake Michigan shells is undoubtedly 
correlated with the more depressed shape. The specimens collected 
by Lewis in the Little Lakes, N. Y., are indistinguishable from those 
from Lake Michigan. The Lake Erie and Lake Ontario specimens 
are uniformly smaller, but otherwise substantially the same. 

The difficulty in finding any tangible distinction between the more 
elevated, substriated individuals of this form and the obsoletely 
striated examples of V. dewisiz is similar to that experienced in at- 
tempting to separate V. tricarinata simplex from the smooth or obso- 
letely striated forms of V. sincera. And this naturally raises a query 
as to whether there are really more than two polymorphic species 
differing constantly in shape, but both varying in sculpture, all the 
way from tricarinate to smooth, and from smooth to ribbed-striate, 
Both series are complete and parallelism is absolutely exact. 


Group of Group of 
V. tricarinata, V. bicarinata. 

Tricarinate, V. tricarinata. V. bicarinata nor- 
malis. 

Bicarinate, V. tricarinata confusa. V. bicarinata. 

Unicarinate, V. tricarinata unicarinata. V. bicarinata con- 
nectans. 

Smooth, V. tricarinata simplex. V. bicarinata per- 


depressa. 


32 THE NAUTILUS. 


Obsoletely striate, V. sincera (Anticosti). V. lewtsit helicoidea. 
Thread-striate, V. sincera, V. lewistt (var. ?) 
Ribbed-striate, V. sincera nylandert. V. lewisti (typical ?) 


In view of the recognized variability of all these forms, the in- 
ference to be drawn would seem inevitable. 


EXPLANATION OF PuiatTeE I. 


All the figures are drawn on the same scale (x 5) except 4, 5 and 
6 which were drawn by Miss Helen Winchester, and these are sub- 
stantially the same.’ 
Fig. 1-3. V. sincera, High Island Harbor, Lake Michigan. 
« 4-6. V. sincera, Anticosti. 
« 7-9. V. sincera nylander?, Portage Lake, Aroostook Co., Me. 
“9. V. sincera nylanderi, Isle Royale, Mich. 
«© 10-11. V. sincera daniels’, Cannon Lake, Rice Co., Minn. 
‘© 12-13. V. lewisit, Traverse City, Mich. 
«“ 14. V. bicarinata, Philadelphia, Pa. 
“ 15-16. V. bicarinata perdepressa, Lake Mich., Michigan 
City, Ind. 


HELIX JEJUNA SAY TRANSFERRED TO PRATICOLELLA. 


BY HENRY A. PILSBRY. 


Recently I received from Mr. George H. Clapp some living ex- 
amples of this small snail, with a request that they be examined 
anatomically to determine the generic position of the form, which 
has of recent years been grouped with the small Polygyras of the 
“< Mesodon ”’ type. 

The snails were collected at Lemon City, Dade Co., Florida, by 
Mr. Chas. T. Simpson. Externally the soft parts do not differ from 
Polygyra and many other genera of Helices. 

The terminal ducts of the genitalia are shown in Fig. 1. The 
penis bears the retractor and vas deferens at its apex. Near the 
base a very large gland or “ appendix ”’ is inserted (a in the figure). 
This seems to be a nearly solid but soft and readily broken gland. 
The vagina is more than half as long as the penis. The spermatheca 


THE NAUTILUS. 33 


is large and oblong, upon an extremely short duct. Other organs as 
usual in Helices. 

No Polygyra or “ Mesodon”’ has a gland or appendix upon the 
penis, but in the Mexican genus Praticolella, represented in Texas 
by P. griseola and P. berlandieriana, a similar structure is found. 
I do not hesitate to refer jejuna to the genus Praticolella on the evi- 
dence of this peculiar organ, which has been noticed in no other 
genus of Helices within our limits. The Floridian snail differs from 
the Texan and Mexican forms by having an apparently simple penis 
retractor muscle, while in the other species it is split and has a triple 


Fig. 1. P, penis; p,7r, its retractor; a, penial gland ; wd, vas deferens; wt, 
uterus ; sp, spernatheca; vag, vagina. 


insertion on penis and vas deferens. This simple condition was 
probably the ancestral structure of the genus, since it is that of all 
other related Helices. 

The shell of this species, which we will now call Praticolella je- 
juna (Say), agrees somewhat better with that of Praticolella than 
with any other of our genera of Helices. Not much is known of the 
habits of the snail. It is quite a local form, which I never happened 
upon at Miami or elsewhere in some half-dozen visits to Florida. 
Mr. S. N. Rhoads found it on the “under side of young cabbage 
palms”? at Miami. Further information upon the situations it affects 
will be of interest In Texas, Praticolella berlandieriana lives on 
bushes with Bwlimulus dealbatus mooreanus, but during prolonged 
dry weather it burrows in the ground. 


34 THE NAUTILUS. 


SOME SHELLS OF MISSISSIPPI AND ALABAMA. 


BY A. A. HINKLEY. 


In the fall of 1904, with the aid of some of my conchological 
friends, for the purpose of collecting in that region, a trip was made 
to Abbeville, Grenada, Durant and Columbus, Mississippi, and 
Tuscaloosa, Boligee, Tuscumbia and Florence, Alabama. 

The streams along the Illinois Central railroad where stops were 
made, have sandy beds and not favorable for molluscan life, with the 
exception of two specimens of Pleurocera elevatum, no representatives 
of the Strepomatide were found in these streams. 

In determination of material collected thanks are due Messrs. 
Bryant Walker, Wm. A. Marsh, L. S. Frierson, Dr. V. Sterki, F. 
C. Baker and H. A. Pilsbry. 


Family HELIcINIDz. 


Helicina orbiculata Say. Boligee, Ala., dead specimens only. 


Family HEeLicip2&. 


Polygyra leporina Gould. Abbeville and Columbus, Miss., Boligee, 
Ala. 

Polygyra troostiana Lea. Florence, Ala. 

Polygyra fraudulenta Pilsbry. Florence, Ala. 

Polygyra inflecta Say. A common species found at all localities. 

Polygyra exoleta Binney. Florence, Ala. 

Polygyra palliata Say. Abbeville, Miss., Boligee and Tuscaloosa, 
Ala. 

Polygyra obstricta Say. Columbus, Miss., Florence, Ala. 

Polygyra appressa Say. Florence, Ala. 

Polygyra appressa perigrapta Pilsbry. Grenada and Columbus, 
Miss. 

Polygyra thyroides Say. Abbeville, Grenada and Columbus, 
Miss., Tuscaloosa, Boligee and Florence, Ala. At Boligee they 
were numerous along the railroad right of way. In the same situa- 
tion though not as numerous were P. clausa and B. dealbatus. 

Polygyra clausa Say. Boligee, Ala., varies a little in size and 
thickness of the shell. 

Polygyra spinosa Lea. Florence, Ala. Common on both sides 
of the river. 


THE NAUTILUS. 35 


Polygyra barbigera Redfield. Tuscaloosa, Ala., a rare species. 
Polygyra subglobosa Pilsbry. Columbus, Miss., Tuscaloosa and 


Florence, Ala. 
Abbeville and Columbus, Miss., 


Polygyra monodon Rack, 


Florence, Ala. 
Family BULIMULID&. 


Bulimulus dealbatus Say. Boligee, Ala. Dead specimens were 


very numerous in some of the fields. 
Family PupILiip2. 
Strobilopsis labyrinthica Say. Boligee, Ala., Abbeville, Durant 


and Columbus, Miss. 
Pupoides fallax Say. Boligee and Florence, Ala. 


Bifidaria armifera Say. Boligee, Ala. 


Bifidaria contracta Say. Boligee, Ala. 
Bifidaria procera Gould. Boligee and Florence, Ala. At the 
former place it was found in tufts of grass in an open field, at the 


latter under stones in an open close pastured place along the river. 


Family GLANDINID2. 


Glandina truncata Brug. Boligee, Ala. 
eggs were often found abont old logs and young shells were quite 
A mature horn-colored specimen was an interesting varia- 


The remains of nests of 


common. 


tion. 
Family CrrcInarip&. 


Circinaria concava Say. Tuscaloosa, Boligee and Florence, Ala. 


Family ZoniTIp2&. 


Omphalina fuliginosa Griff. Florence, Ala. 
Omphalina laevigata Pfr. Abbeville, Grenada and Columbus, 


Miss., Tuscaloosa, Boligee and Florence, Ala. 
Boligee and Florence, Ala. 


Abbeville, Miss., Boligee, Ala. 
Abbeville, Grenada Durant and Colum- 


Vitrea carolinensis Ckll. 

Euconulus fulvus Mull. 

Zonitoides arborea Say. 
bus, Miss., Boligee, Ala. 


Zonitoides minuscula Binney. Boligee, Ala. 
Gastrodonta demissa Binney. Columbus, Miss., Tuscaloosa, Bo- 


ligee and Florence, Ala. 
Gastrodonta interna Say. Tuscaloosa and Florence, Ala. 


36 THE NAUTILUS. 


Family ENDODONTID&. 


Pyramidula alternata, Say. Abbeville, Grenada and Columbus, 
Miss., Tuscaloosa and Boligee, Ala. 
(To be continued). 


NOTES. 


THe Ravenet CoLiection.—The museum of the College of 
Charleston, S. C., has acquired the valuable conchological collection 
of the late Dr. Edmund Ravenel, of Charleston, which contains some 
3,900 species of land, fresh-water and marine shells. 


LyMN@%A MEGASOMA Say.—Fine specimens of this rare species 
have recently been taken at Lake Minnetonka, Minn., by Mrs. A. 
W. Abbott of Minneapolis. 


PUBLICATIONS RECEIVED. 


Nores ON JAPANESE, INDO-PACIFIC, AND AMERICAN PYRAMID- 
ELLIDZ. By Wm. H. Dall and Paul Bartsch, (Proc. U. 8. Nat. 
Mus., XXX, pages 321-369, plates XVIJ-XXVI, 1906). This 
valuable work on the Pyramidellide is based in part on the collec- 
tion of the museum of Berlin loaned to the U. S. National Museum 
for study. Some 22 new species are described and figured, and a 
number of new names are proposed to replace those pre-occupied. 
Three new subgenera Misiturris, Babella and Egilina are also defined. 


DeESCRIPTION OF Two New Naraps. By Paul Bartsch, (Proce. 
U. S. Nat. Mus., XXX, pages 393-396, Plates 27-29, 1906). The 
species are Vephronatas flucki from Nicaragua and Diplodon anapen- 
sts from Argentina. 


Recent Moriusca: A CATALOGUE OF OPERCULATE LAND 
Suetis. By G. B. Sowerby and H. Fulton. London, 1906. A 
useful list of genera and species arranged “ with slight modifications ” 
according to Kobelt and Mdllendorff’s catalogue. 


ANATOMY OF ACMHZA TESTUDINALIS MULLER, Part I. Intro- 
ductory material. Externalanatomy. By M.A. Willcox. Reprint 
the American Naturalist, Vol. XL, pp. 171-187, 1906. 


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THE NAUTILUS, XX. PEA Eau 


RAYMOND: WEST AMERIGAN SPECIES OF GENOTA 


Mey NAUTILUS. 


VoL. XX. AUGUST, 1906. No. 4. 


THE WEST AMERICAN SPECIES OF PLEUROTOMA, SUBGENUS GENOTA. 


BY WILLIAM JAMES RAYMOND. 


Five species of the subgenus Genota, section Dolichotoma, have 
been described from the Pacific coast of North America. Three of 
the species have been figured ; two have not hitherto. Specimens of 
all five, including the types of four, being temporarily in possession 
of the writer, it seemed desirable to bring them together in a single 
photographic plate. Apparently derived from a common stock, and 
arising in late tertiary time, the nominal species are closely allied. 
Yet there is convenience in retaining the present specific designa- 
tions of forms which are readily distinguishable. Two of the species 
have not thus far been found living. As the deeper water along the 
coast is explored, they may possibly be discovered in the dredge, 
together with other forms not now known. 


Pleurotoma ( Genota) carpentertana Gabb. 

Pleurotoma (Surcula) carpenteriana Gabb. Proc. Cal. Acad. Nat. 
Sci., 1865, p. 183; Pal. Cal., vol. 2, p. 5, pl. 1, fig. 8. 
Pliocene.—San Fernando and Santa Rosa (Gabb); San Diego 

(Dall). 

Pleistocene.—Santa Barbara and San Pedro (Gabb); San Pedro, 

San Diego and Ventura (Arnold); Santa Monica (Rivers). 
Living.—Drake’s Bay, 30 fathoms (Arnheim); Monterey to San 

Diego (Cooper); San Pedro, Santa Catalina Island and San Diego, 

10 to 100 fathoms (Raymond); Cerros Island (Dall). 

This is the largest and most plentiful species of the group. It is 


38 THE NAUTILUS. 


characterized by a regularly fusiform outline, eight whorls, fine spiral 
sculpture, slight concavity near the suture, slight convexity of the 
anterior part of the upper whorls, the obtuse shoulder thus» formed 
being below the middle of each whorl and sometimes ornamented 
with inconspicuous nodes. Plate II, fig. 1, illustrates Gabb’s type, 
found in the pleistocene of Santa Barbara. It is the property of the 
University of California. Fig. 3 shows an example close to type. 
It was dredged in about 100 fathoms, off Santa Catalina Island. 
Length 80 mm. In fig. 2 the nodes are distinguishable, which when 
better developed are a diagnostic feature of the next species. 
Length 54 mm. 


Pleurotoma ( Genota) tryoniana Gabb. 
Pleurotoma (Surcula) tryoniana Gabb, Pal. Cal., vol. 2, p. 6, pl. 1, 

fig. 9. 

Pleistocene.—San Pedro (Gabb); Santa Barbara and San Pedro 
(Cooper); Santa Monica (Rivers). 

Living.—San Diego (Cooper); San Pedro (Oldroyd). 

Typically the angular, nodose whorls, eight in number, separate 
this species from Genota carpenteriana, but intermediate forms like the 
example shown in fig. 2 are found rarely, and indicate the close alli- 
ance of the two species. Plate II, fig 7, illustrates Gabb’s type, 
found in the pleistocene of San Pedro. Fig. 8 represents a specimen 
found at Santa Monica. Its length is 62 mm. 


Pleurotoma (Genota) cooperi Arnold. Mem. Cal. Acad. Sci., Vol. 

Il], p. 208, pl. vii, fig. 3. 

Pleistocene.-—San Pedro (Arnold); Santa Monica (Rivers). 

Characterized by the angular whorls, seven or eight in number, 
decidedly concave above the nodose angle, with relatively sharp 
sculpture. The nodes are more numerous than in the last species 
and become less prominent toward the aperture. Aperture less than 
aalf the length of the shell. Plate II, fig. 10, illustrates the single 
specimen found in the pleistocene of Santa Monica. 


Pleurotoma (Genota) stearnsiana Raymond. Nauvrtitus, Vol. 
VIL, ip al: 


Living.—San Diego and Santa Catalina Island, 25 to 40 fathoms 
(Raymond). 


THE NAUTILUS. 39 


The species is characterized by its small size, eight or more 
whorls, relatively wide form and broad color bands. Plate II, fig. 6, 
represents the type. Length 30.5 mm. An old specimen, length 
41.5 mm., is shown in fig. 5, and a younger example in fig. 4. All 
are from San Diego. 


Pleurotoma ( Genota) riversiana Raymond. Naurtitus, Vol. XVIII, 
p- 14. 


Pliocene.—Santa Monica (Rivers). 

Characterized by narrow form, sharply expressed sculpture and 
obtuse angle above the middle of the whorls. Plate II, fig. 9, 
illustrates the type which thus far is the only specimen found. 
Length 59 mm. 

University of California, July, 1906. 


NOTE ON THE GENUS GLABARIS GRAY OR PATULARIA SWAINSON. 


BY WILLIAM HEALY DALL. 


The genus Patularia Swainson, appears in his Malacology (1840) 
pp- 287 and 381. There are two species of which the first is Anodon 
ovatus Swainson, Exotic Conchology pl. xxxvi, 1823, (2nd ed. by 
Hanley, p. 30, 1841) not Jridina ovata Swainson, Phil. Mag., 1823. 
The second species A. rotundatus Swainson, is doubtfully referred to 
Anodonta by Simpson in his Synopsis, p. 638. If it be as he sup- 
poses synonymous with A. woodiana Lea, Swainson’s name dating 
from 1823, will of course take precedence. In 1841 Swainson cites 
under his Patularia ovata Anodonta trapesialis Lamarck, and Han- 
ley points out that the latter specific name, being four years older, 
must take precedence of ovatus Swainson. Anodonta trapesialis, 
however, in modern classification, is a typical Glabaris of Gray. 
But Glabaris Gray, dates only from 1847, when the name was 
applied to A. exotica Lamarck, by Gray, in his list of generic syn- 
onyms, Proc. Zool. Soc. Lond., 1847, p. 197. 

It would seem, therefore, that, since the first species and type of 
Patularia is a Glabaris, that the former name should be substituted 
for the latter in our systems. An examination of the nomenclators 
fails to show any earlier use of the generic name Patularia in zodlogy 
and there seems to be no reason which would militate against its 
adoption. 


40 THE NAUTILUS. 


A careful examination of the text of the second edition of the 
Exotic Conchology shows that this is the only name included in it 
which is likely to affect the existing nomenclature. 


SOME SHELLS OF MISSISSIPPI AND ALABAMA. 


BY A. A. HINKLEY. 


(Concluded from July Number, p. 36). 


Family SuccINEID&. 


Succinea concordialis Gould. Durant, Miss., one dead shell was 
all found. In the summer of 1904 this species was plentiful at the 
R. R. bridge across Little Muddy near Du Bois, Ill. 

Succinea aurea Lea. Florence, Ala. 


Family Limnarip&. 


Lymnea desidiosa Say. ‘Tuscaloosa and Florence, Ala. 

Lymnea caperata Say. Boligee, Ala. 

Lymnea columella Say. Florence, Ala. 

Physa gyrina Say. Florence, Ala. 

Physa heterostropha Say. ‘Tuscumbia, Ala. 

Physa pomilia Conrad. A rill below Columbus, Miss. 

Physa troostiana Lea. Spring above Florence, Ala. 

Planorbis trivolvis var. glabratus Say. Shoal creek, Florence, 
Ala. 

Planorbis trivolvis Say. Durant, Miss. One specimen. 

Planorbis dilatatus Gould. Grenada, Miss. 

Segmentina wheatleyi Lea. Boligee, Ala. 

Ancylus elatior Anthony. ‘Tennessee river, Florence, Ala. 

Ancylus kirklandi Walker. Tombigbee and Yalabusha rivers. 

Ancylus rhodaceus Walker. ‘Tennessee river, Florence, Ala. 


Family AURICULID&. 
Oarychium exiguum Say. Abbeville, Miss. Only found two 
specimens. 
Family STREPOMATID#. 


To spinosa Lea. Tennessee river, Florence, Ala. One specimen 
only of this fine species was found. 


THE NAUTILUS. 41 


Angitrema salebrosa Conrad. Tennessee river, Florence, common. 

Angitrema subglobosa Lea. ‘Tennessee river, Florence, Ala. 

Angitrema tuomeyi Lea. Tennessee river, Florence, Ala. A few 
were found in 1894 but none this time. 

Angitrema duttoniana Lea ?. ‘Tennessee river, Florence, Ala. 

Angitrema lima Conrad. Cypress Creek, Florence, Ala. A few 
faintly banded. 

Angitrema verrucosa Raf. Tennessee river, Florence, Ala. 

Lithasia florentina Lea. Cypress and Shoal creeks, Florence, 

Ala. Found only a few. ; 

Lithasia nuceola Anthony. Tennessee river, Florence, Ala. 

Doubtful determination. 

Lithasia curta Lea. Tennessee river and Shoal creek, Florence, 

Ala. 

Strephobasis plena Anthony. Tennessee river, Florence, Ala. 

Strephobasis curta Hald. Tennessee river and Shoal creek, Flo- 
rence, Ala. 

Pleurocera alveare. Tennessee river, Cypress and Shoal creeks, 

Florence, Ala. 

, Pleurocera undulatum Say. Tennessee river, Florence, Ala. 
Pleurocera excuratum Conrad. Tennessee river, Florence, Ala. 
Pleurocera moniliferum Lea. Tennessee river, Florence, Ala. 
Pleurocera ponderosum Anthony. Tennessee river, Florence, Ala. 
Pleurocera moriforme Lea. Tennesee river, Florence, Ala. 
Pleurocera thorntonit Lea. Tennessee river, Florence, Ala. 
Pleurocera annuliferum Conrad. Black Warrior, Tuscaloosa, Ala. 
Pleurocera elevatum Lea. Yallabusha river, Granada, Miss. 

Only two specimens found, they were covered with a thick deposit 

which being removed revealed a polished, olive colored epidermus 

and two strong bands. 
Pleurocera trivittatum Lea. 'Tombigbee river, Columbus, Miss. 
Pleurocera incurvum Lea. Cypress creek, Florence, Ala. 
Pleurocera alabamensis Lea. Cypress creek, Florence, Ala. 
Pleurocera olivaceum Lea. 'Tombigbee river, Columbus, Miss. 
Pleurocera lativittatum Lea. Shoal creek, Florence, Ala.’ 
Goniobasis acuta Lea. Florence, Ala. 
Goniobasis formosa Conrad. Florence, Ala. 
Goniobasis hydeti Conrad. Black Warrior, Tuscaloosa, Ala, 
Goniobasis interveniens Lea. Florence, Ala. 


42 THE NAUTILUS. 


Goniobasis nassula Conrad. Spring in Tuscumbia, Ala. 

Goniobasis thorntontt? Lea. Spring in Tuscumbia, Ala. 

Goniobasis aterina Lea. Florence, Ala, Found with Pomatiopsis 
Ainkleyt. 

Goniobasis nitens Lea. Florence, Ala. This determination is 
doubtful. 

Gontobasis adusta Anthony. Spring near Cypress creek, Flo- 
rence, Ala. 

Goniobasis paupercula Lea. Small stream above Florence, Ala. 

Eurycelon crassa Hald. Tennessee river, Florence, Ala. Only 
one very young shell found. When at this place in 1894 this form 
was found of all sizes with three wide bands and the carina of the 
young shells remarkably developed, Pilsbry says this is Hu. anthonyt. 

Anculosa carinata Brug. Tennessee river, Florence, Ala. A 
few specimens can be referred to no other species and are put under 
this name with some doubt. 

Anculosa subglobosa Say. Tennessee river and Shoal creek, Flo- 
rence, Ala. 

Anculosa praerosa, Say. Tennessee river and Cypress creek, 
Florence, Ala. 

Anculosa tintinnabulum Tennessee river and Shoal creek, Florence, 
Ala. 

Family VIVIPARID&. 


Vivipara intertexta Say. Rill near Durant, Miss., and a rill near 
Boligee, Ala., both places in heavy timber. 

Campeloma ponderosum Say. Tennessee river, Florence and Tom- 
bigbee river west of Boligee, Ala. 

Campeloma decisum Say. Tennessee river, Florence, Ala. 

OCampeloma decisum var. heterostropha. One specimen. Tennessee 
river. 

Campeloma coarctutum Lea. Tallahatchie, Yalabusha, Big Black 
and Tombigbee rivers. 

Campeloma decampi Currier. Tennessee river, Florence, Ala. 


Family AMNICOLIDZ. 


Amnicola cincinnatiensis Anth. Big Black and Tombigbee rivers. 

Amnicola limosa Say. Tallahatchie, Yalabusha, Big Black and 
Tombigbee rivers. 

Amnicola augustina Pilsbry. Tuscumbia, Ala. Found in the 


THE NAUTILUS. 43 


stream running from the spring, they were in alge and on the muddy 
bottom. 

Somatogyrus subglobosa Say. ‘Tallahatchie and Yalabusha rivers. 

Somatogyrus georgianus Walker. Tennessee river, Florence, Ala. 

Somatogyrus substriatus Walker. Tombigbee and Tennessee 
rivers. The most plentiful species of the genus in these two streams. 

Somatogyrus humerosus Walker. Tennessee river, Florence, Ala. 

Somatogyrus quadratus Walker. Tennessee river and Shoal creek. 

Somatogyrus strengi Pilsbry and Walker. ‘Tennessee river and 
Shoal creek. 

Somatogyrus biangulatus Walker. ‘Tennessee river, Florence, 
Ala. 

Somatogyrus excavatus Walker. Shoal creek, Florence, Ala. 

Somatogyrus tennesseensis Walker. Shoal creek. 

Somatogyrus pumilus Conrad. Tennessee river, Florence, Ala. 

Pyrgulopsis mississippiensis Pilsbry. Shoal creek. This little 
species was numerous a short distance above the canal aqueduct, 
where sediment had collected on the rock bottom, a few were found 
on alge. They were only found in mid-stream. 

Pomatiopsis lapidaria Say. Found on leaves after a shower, in a 
moist situation, always shaded by timber and scrub palmetto. Boligee, 
Ala. 

_Pomatiopsis hinkleyi Pilsbry. This species was very numerous in 
the same places where the types were found in 1894. It was also 
found across the river high up on the river bluff, on and in damp 
moss but not in a wet situation like the others. See vol. X, p. 37 
of the NavuTILus. 


Family CorBICULID&. 


Calyculina transversa Say. Yalabusha, Black and Tombigbee 
rivers. 

Calyculina occidentalis Prime. Creek, Boligee, Ala. 

Sphaerium striatinum Lam. Big Black river, Durant, Miss., 
Boligee, Alabama, one specimen at last place. 

Sphaerium stamineum Conrad. Young specimens, Grenada, and 
one mature at Durant, Miss. 

Pisidium virginicum Gmel. Durant, Miss. 

Pisidium compressum Prime. Tuscumbia spring; Black War- 
rior, Tuscaloosa, and Shoal creek, Florence, Ala. 


44 THE NAUTILUS. 


Pisidium variabilis Prime. Big Black river, Durant, Miss. 
Pisidium noveboracense Prime. Variety, spring, Tuscumbia, Ala. 
Pisidium peraltum Sterki. Yalabusha river, Grenada, Miss. 
Pisidium neglectum Sterki. Ms, name; Black Warrior, Tusca 
loosa, Ala. 
Pisidium singleyi Sterki. Black Warrior, Tuscaloosa, Ala. 
Pisidium atlanticum Sterki. Floating creek, Columbus, Miss. 
( To be continued.) 


A NEW SCALA FROM CALIFORNIA. 


BY WILLIAM HEALEY DALL. 


Seala lowet n. sp. 


Shell small, conic, with five or more rapidly increasing whorls 
after the (lost) nucleus; color white, whorls very convex with deep 
sutures and a small, spiral umbilicus; there is no basal disk or cord ; 
sculpture of about twenty-seven rather thick, strongly reflected, 
smooth, close-set varices, and very close, fine, spiral threads, covering 
the whole whorl between the varices, and separated by about equal 
sulci; aperture sub-circular, slightly higher than wide, the reflected 
margin wide at the outer lip, patulous at the inner base, narrow 
between the shoulder and the preceding whorl, and at the shoulder 
produced into a short, rather stout spine which, repeated on successive 
varices, coronates the whorls. Length of shell (without nucleus), 
7.0; max. diameter, 4.0 ; max. diameter of aperture, 2.5 mm. 

Habitat: dredged off Avalon, Catalina Island, Cala., in 40-60 
fathoms, by H. N. Lowe, in 1903. 

This species recalls S. bel/astriata Carpenter, in general character, 
but is smaller ; has more numerous, close-set and more strongly re- 
flected varices; and has the spiral striation and threading much 
finer than in bellastriata of equal size. 

The first shell belonging to Mr. Lowe was returned to him after 
a figure had been drawn from the specimen. A second specimen was 
sent by him, from the same vicinity, in 1906, which is retained in 
the National Museum, No. 191548. This also has lost its nucleus. 
The six remaining whorls measure 7.0 mm. in length. 


or 


THE NAUTILUS. 4: 
DESCRIPTIONS OF TWO NEW CLEOPATRA AND A PISIDIUM. 


BY C. F. ANCEY. 


1. Cleopatra multilirata, Anc. 

Testa fusco-olivacea, indumento ferrugineo tecta, modice sed pro 
genere aperte perforata, solidula, concolor vel circa umbilicum brun- 
neo tincta, ovato-turbinata, liris acutis permultis (circa 8-9 in penul- 
timo, 24-25 in ultimo anfractu) angulata. Spira conoidea, erosa. 
Anfractus superst. 34 rotundati, sutura profunda, ultimus latus, 
ovatus. Apertura ovata, fere recta, superne subangulata, margini- 
bus callo appresso nitido junctis, columellari vix patulo. Opercu- 
lum fuscum, extus medio valde concavum, nucleo paucispirato, sub- 
centrali, attamen propius marginem columellarem sito. 

Long. 9, diam. 7, alt. apert. 5 mill. 

Hab. Vinaninony, Madagascar (teste Ph. Dautzenberg). 

A very distict species quite different from other forms recorded from 
Madagascar, such as C. amoena, Morelet, C. moniliata, Morelet, C. 
grandidiert, Crosse et Fischer and CO. Trabonjyensis, Smith. All of 
these but the latter were not correctly located in their proper genus, 
as the first was referred to Melania, the second to Paludina and the 
third to Paludomus by the describers. The present species is some- 
what related to Cl. Trabonjyensis, but the lire are much more nu- 
merous. 

2. Cleopatra Smithi, Anc. 

Testa ovato-acuminata, anguste perforata, subtenuis, flavescens vel 
flavo-virens, epidermide tenui induta, liris fuscis infra peripheriam 
ultimi anfractus evanescentibus regulariter exarata. Spira conoidea, 
truncata. Anfractus circiter 7 convexi, sed haud tumido-ventricosi, 
superiores, liris 4 cincti, concolores (lires haud coloratis), ultimus 
ovatus, liris 5-6 zquidistantibus supra insertionem aperture et sepe 
una infra medium cinctus et 2-3 parvulis circa perforationem sculp- 
tus, inter liras striis incrementi conspicuis eximie peraratus, zona 
peripherica castanea, alteraque circa basin ornatus. Apertura ovalis, 
superne et infra paulo acuminata, totius teste dimidio multo minor. 
Peristoma tenue, marginibus callo tenui junctis, columellari simplici, 
non expanso. 

Long. (teste erose, 4 anfr.) 11 diam. 7, alt. apert. 5, lat. ejusd. 
34 mill. 

Hab. River Chozi, which flows into the Chambézi, region of lake 
Bangweéolo, British Central Africa (Rev. Fath. M. Guillemé, 1905), 


46 THE NAUTILUS. 


Strikingly like Ol. Mweruensis, Smith (Proc. Zoél. Soc, London, 
1893, pl. lix, fig. 10), but smaller, differently colored and more regu- 
larly lirate. The locality is very distant from lake Mweru, although 
belonging to the same geographical region. 

For this and numerous other interesting shells collected during his 
journeys in Central Africa I am indebted to the Fath. M. Guillemé. 
The material collected by him will be reported upon in the near 
future. As a species of Cleopatra was already named after him, I 
am respectfully dedicating this new species to E. A. Smith, Esq., of 
the British Museum. 


3. Pisidium planatum, Anc. 


Concha minuta, lenticularis, parum inflata, compressa, nitidula, 
tenuis, pallide cinerea, striis concentricis exilibus crebre sub lente 
sculpta, umbonibus levibus, depressis, inequilatera. Pars antica 
rotundata, postica fere duplo major, regulariter arcuata. Umbones 
late depressi, obtusissimi, inermes, levigati. Dens cardinalis parvus, 
laterales debiles. Ligamentum parvum, lineare. 

Diam. 34, alt. 24, crass. 14 mill. 

Hab. Andriba, Central Madagascar (teste Dautzenberg). 

A more depressed form than P. Madagascariense Smith, the 
only other species of the genus described from the island. 


NOTES. 


On THE Hasits OF PRATICOLELLA JEJUNA :—In the vicinity of 
St. Augustine, Florida, I found this species locally only west of the 
city in the white sandy, scrub oak section, near the pines, under boards 
and leaves, in fact this was the only shell found there. They were 
undersize, and very thin, probably due to the unfavorable condition 
for molluscan life. Mr. A. G. Reynolds writes me from Disston 
City, Hillsboro county, Fla.: ‘It is found under dead leaves and 
trash, occasionally under boards, and more rarely on pine stumps.” 
Mr. Charles T. Simpson in his valuable paper, ‘‘ Contributions to the 
Mollusca of Florida,” (Proc. Davenport Acad. Nat. Sci., v, p. 66, 
1886), says: “ The only mollusk ever found in high, dry pine woods 
in Florida. I have seen it crawling on barren dry sand near 
Braidentown, and around my dwelling, and along the road in 
Fogartville.’—C. W. JoHnson. 


THE NAUTILUS. 47 


CHLorRITIs Epwarpl, Gude, ascribed with some little doubt to 
the Moluccas, is found in the Island of Ceram, where it was found by 
the Rev. Father Le Coq d’Armanville, who lost his life in New 
Guinéa. My specimens were received from the Abbé Mége, 
Omphalotropis macromphalu, Bavay (Journ. de Conch., 1905, vol. 
lili, p. 250, figs. 9, 10, 11), is the same as O. Quadrasi, v. MOll., 
and therefore becomes a synonym of the latter. The shell is from 
the Island of Guajan (or Guam), Ladrone Islands. Von Mollen- 
dorff’s paper appears to have escaped the notice of Mr. Bavay.—C. 
F. ANCEY. 


Notre on DyakIA AND PsEUDOPARTULA.—A recent article by 
Lieut.-Col. H. H. Godwin Austen (Proc. Malac. Soc. Lond., vii, p. 
93) has called my attention to the anatomical description of Dyakia 
nasuta (Helix nasuta Metcalfe) by the same author (P. Z. S., 1891), 
which I had overlooked when treating of this species in Manual of 
Conchology, xiv, p. 12. It appears that the snail belongs to the 
Zonitide. There cannot be much doubt that the Sumatran and 
Javan species forming the group Pseudopartula, and which I asso- 
ciated with nasuta, will also be transferred to Zonitida@, since their 
resemblance to nasuta seems too strongly marked to be adventitious. 
—H. A. Piissry. 


A Synonym or BracuypopELia.—In my monograph of Uro- 
coptide I overlooked the name Microstoma hanleyanum Jousseaume. 
Mém. Societe Zodlogique de France for 1889, p. 247. This is 
Cylindrella hanleyana of Pfeiffer, a species of Brachypodella. The 
name Microstoma will become a synonym of Brachypodella, It was 
probably not intended as a new generic name, being very likely an 
error for Mychostoma.—H. A. Pivssry. 


PUBLICATIONS RECEIVED. 


Heticina occutta Say (Proc. Davenport Acad. of Sciences, ix, 
pp- 173-180). AppitionaL Nore on HELicina OccuLTA (Jour- 
nal of Geology, xiii, 1905, pp. 282-237). By B. Shimek. The 
rather extensive records of this species in both conchological and 
geological literature are reviewed in these papers, with copious notes 
and comparisons of recent and fossil shells. The alleged depauper- 


48 THE NAUTILUS. 


ation of loess as compared with modern shells is disproved; ‘‘ while 
there are variations in size in both recent and fossil shells, there is 
no marked depauperation of the fossils.” H. occulta is uniformly 
found living on well-wooded grounds, leading Prof. Shimek to con- 
elude that the forest areas in the loess region were formerly of much 
greater extent. 


On THE ANaTOMy OF CERTAIN SpEcIEs OF SoLENIDZ. ON 
THE ANATOMY OF ENsI8s MAGNUS ScHUM. By H. H. Bloomer. 
Journ. of Malacol., xii, pt. 4. Several oriental and tropical Ameri- 
can species of Solentd@ are described anatomically in these papers. 
Mr. Bloomer has now devoted ten papers to the morphology of the 
Solenide, to the great advantage of all interested in Pelecypod 
anatomy. 


HENRY A. WARD. 


We deeply regret to record the death of Professor Henry A. Ward, 
who was killed by an automobile at Buffalo, N. Y., on July 4. He 
was born at Rochester, N. Y., in 1834. Studied at Williams Col- 
lege and Rochester University, and became an assisiant of Louis 
Agassiz in 1854. He was Professor of Natural History at the 
Rochester University from 1860 to 1865. From 1870 to 1900 Prof. 
Ward traveled in all parts of the world, making large and valuable 
collections which were shipped to his Natural History Establishment 
at Rochester and from there distributed among the museums, uni- 
versities, colleges and private collections throughout the country. 

Prof. Ward has perhaps done as much to popularize and encourage 
the study of natural history than anyone man. Mr. Wm. T. Horna- 
day paid him a glowing tribute, under the well earned title, 
“The King of Museum-builders.”’ It is probably safe to say that 
through his agency more shells have been brought into this country 
than by any other means. His ‘‘ Catalogue of Specimens of Mol- 
lusca”’ forms a useful hand-book for beginners. At various time his 
Establishment has employed men who have subsequently become 
prominent in various branches of the natural sciences. 

For some years past Prof. Ward has devoted his energies chiefly 
to collecting meteorites, bringing together the largest collection in 
the world. An account of it may be found in the July number of 
the Popular Science Monthly. 


* 


THE NAUTILUS, XX. PLATE III. 


i] 


1) 
MK) 
KU) 


Y 
/ 
i) 


AMPHIGYRA AND NEOPLANORBIS. 


mee NAUTILUS. 


VoL. XX. SEPTEMBER, 1906. No. 5. 


TWO NEW AMERICAN GENERA OF BASOMMATOPHORA. 


BY HENRY A. PILSBRY. 


In the course of a collecting expedition to Alabama in October 
and November, 1903, Mr. A. A. Hinkley found a number of mol- 
lusks of unusual interest and importance." Among them were two 
species of spiral-shelled gastropods quite unlike any fresh-water 
snails hitherto known in this country, having affinities with the 
Ancylide. 

Like Ancylus, the new forms are essentially sinistral in their soft 
parts, but the shells are dextral. They are very small snails, and 
were found on or usually under rocks in swift water, and evidently 
do not depend upon free air for respiration, having a false gill in the 
pallial chamber. 

Genus AMPHIGYRA nov. 


The shell is minute, Neritoid or Crepidula-like, with a small 
depressed lateral spire, apparently dextral, composed of about 14 
very rapidly enlarging whorls, the last very convex dorsally, im- 
perforate ; the apex is smooth, and the last whorl is spirally striate. 
The aperture is very large, oblique, transversely oval, the peristome 
continuous and free, thin. Cavity of the spire very small, a thin, 
broad, concave columellar plate projecting across the end next the 
spire, as in Orepidula or Latia. 

The soft parts are sinistral, externally Limnawoid, with large 
black eyes near the inner bases of the short blunt cylindric tentacles. 


1See lists of the species collected, in Nautitus for August and September, 
1904. 


50 THE NAUTILUS. 


Two adductor muscles, kidney-shaped in section, one on each side, 
replace the usual columellar muscle. 

The radula has 18, 1, 18 teeth, arranged about as in Lymnaea. 
Centrals with a single cusp, the laterals bicuspid, the outer cusp 
smaller. The transition teeth have four or five cusps. The mar- 
ginal teeth are low, wide and separated, with four or five cusps. 
Pl. III, fig. 6, teeth of A. alabamensis, 

There is a short false gill hanging in the pallial cavity. 

The shell has some resemblance to Crepidula and Latia. Lepy- 
rium and Pompholyx are also slightly similar; but the resemblance 
is no doubt superficial. Pompholyx, like Amphigyra, is sinistral 
with an ultrasinistral shell. It has no plate or lamina across the 
visceral cavity. The soft anatomy of Amphigyra, so far as worked 
out, seems to show most affinity with the Ancylide. 

The deck of Amphigyra is present at all stages of growth ob- 
served, in young as well as mature shells. In Gundlachia no septum 
is developed until a period of hybernation or estivation is reached. 
The shell is more solid than that of Ancylus or Gundlachia. 
Amphigyra alabamensis n. sp. Pi. III, figs. 1, 2. 

The shell is shaped like a convex Orepidula, closely, finely and 
sharply striate spirally, and of a pale yellowish-corneous tint. The 
last whorl flares in a raised ledge at the baso-columellar region, the 
back being very convex. The spire is slightly sunken, depressed. 
The raised parietal margin of the lip is abruptly kinked where it 
passes across the preceding whorl. The columellar plate or deck 
extends over nearly one-third the total transverse length of the 
aperture. Alt. 1.1, diam. 2 mm. 

Wetumpka, Alabama, on the under surfaces of rocks in swift 
water. 

Genus NEOPLANORBIS nN. gen. 

The shell is minute, subdiscoidal, nearly flat above, convex below, 
perforate, carinate at the periphery, composed of about two rapidly 
enlarging whorls, the apex impressed and turned in. The aperture 
is very oblique, wider than high, a little dilated at the base. Peris- 
tome thin, not continuous, the columellar margin straight and 
broadly dilated, somewhat thickened within. 

The dentition and so far as known, the soft anatomy, is similar to 
Amphigyra. 

Type J. tantillus. 


THE NAUTILUS. 51 


The type of this group was at first taken for a Planorbis of the 
P. dilatatus group,’ but when the dentition was examined it became 
obvious at once that the snail could not belong to the Planorbine. 
The radula is not materially unlike that of Amphigyra, but the con- 
chological features of the two groups are quite diverse, Amphigyra 
being Crepiduloid with a distinct ‘‘ deck” or columellar plate, while 
Neoplanorbis is Planorbis-shaped, perforate, with a carinate periphery 
and no ‘‘ deck.” 


Neoplanorbis tantillus n. sp. Pl. III, figs. 3, 4, 5. 


Shell very narrowly perforate, slightly convex above, very con- 
vex below, with a strongly projecting rounded keel at the periphery ; 
light brown; surface slightly shining, sculptured with very obliquely 
radial growth-lines and raised spiral strie, rather coarse for a shell 
of this size. Whorls 2, rapidly enlarging, the apex somewhat 
sunken; first whorl very convex, the second much less so, slowly 
descending in front, Aperture very oblique, shaped like a gothic- 
arched door, the upper and lower margins arcuate, the outer margin 
angular, the columellar margin dilated, straight and vertical, with a 
rather wide whitish callous within. Alt. .8, diam. 1.7 mm. 

The specimens occurred at Wetumpka, Alabama with the preced- 
ing species. This is one of the smallest fresh-water mollusks yet 
found in America. 


NOTE ON LEPYRIUM. 


BY H. A. PILSBRY. 


In connection with the genus Amphigyra I have had occasion to 
examine the specimens of Lepyrium in the collection of the Academy. 
It appears that the Lepyrium from the Cahawba river differs from 
L. showalteri (Neritina showalteri Lea) of the Coosa, in being much 
smaller, alt. 2.7, diam. 3 mm., with a straighter columellar edge and 
without a raised outer margin of the columellar area. It will prob- 
ably prove specifically distinct, but as I have been able to compare 
only one of the original lot of Z. showalteri, it may be best to rank 
the Cahawba form as a subspecies under the name Lepyrium showal- 
tert cahawbensts. 


1It was reported as Planorbis tantillus in Mr. Hinkley’s list, Nautilus XVIII, 
p. 54. 


577 THE NAUTILUS. 


SOME SHELLS OF MISSISSIPPI AND ALABAMA. 


BY A. A. HINKLEY. 


(Concluded from August Number, p. 44.) 


Family Unionip&. 


Truncilla triquetra Raf. ‘Tennessee river, Florence, Ala. 

Truncilla brevidens Lea. Tennessee river, Florence, Ala. 

Truncilla suleata Lea. Tennessee river, Florence, Ala. 

Truncilla haysiana Lea. ‘Tennessee river, Florence, Ala. 

Truncilla propinqua Lea. ‘Tennessee river, Florence, Ala. 

Truncilla personata Say. Tennessee river, Florence, Ala. 

Truncilla biemarginata Lea. ‘Tennessee river, Florence, Ala. 

Truncilla florentina Lea. Tennessee river, Florence, Ala. 

Truncilla perplexa Lea. Tennessee river, Florence, Ala. 

Truncilla turgidula Lea. Shoal creek, Florence, Ala. 

Micromya celata Conrad. Tennessee river, Florence, Ala. 

Lampstilis excavatus Lea. Tallahatchie, Big Black and Tombigbee 
rivers and Floating creek, Columbus, Miss. 

Lampstlis ovatus Say. Tennessee river, Florence, Ala. 

Lampsilis multiradiatus Lea, Tennessee river, Florence, Ala. 

Lampsilis biangulatus Lea. Tennessee river, Florence, Ala. 

Lampsilis hydianus Lea. ‘Tallahatchie, Yalabusha, Big Black 
and Tombigbee rivers. 

Lampsilis affinis Lea. Tombigbee river and Floating creek, 
Columbus, Miss. 

Lampsilis orbiculatus Hildreth. ‘Tennessee river, Florence, Ala. 

Lampsilis anodontoides Lea. Tombigbee river, Columbus, Miss., 
and Yalabusha and Tennessee rivers. 

Lampsilis fallaciosus Simpson. Tallahatchie, Yalabusha and Big 
Black rivers in Mississippi. 

Lampsilis rectus Lamarck. Tombigbee and Tennessee rivers. 

Lampsilis lineosus Conrad. Tallahatchie, Big Black and Tom- 
bigbee rivers. 

Lampsilis concestator Lea. Yalabusha river, Grenada, Miss. 

Lampsilis ogeecheensis Conrad. Tombigbee river, Columbus, 
Miss. 


THE NAUTILUS. 53 


Lampsilis apicinus Lea. Tombigbee river, Columbus, Miss. 
Lampsilis trabalis Conrad. Tennessee river. One specimen. 
Lampsilis parvus Barnes. 'Tombigbee river, Columbus, Miss. 
Lampsilis cromwellii Lea. Yalabusha river, Grenada, Miss. 

Lampsilis alatus Say. ‘Tombigbee and Tennessee rivers. 

Lampsilis purpuratus Lamarck. Tallahatchie, Yallabusha and 
Big Black rivers. 

Lampsilis gracilis Barnes. All the rivers visited. 

Lampsilis leptodon Rafinesque. Tennessee river. Two poor 
specimens. 

Lampsilis claibornensis Lea. Floating creek, Columbus, Miss. 

Medionidus acutissimus Lea. Tombigbee river and Floating 
creek, Columbus, Miss. 

Medionidus subtentus Say. Tennessee river, Florence, Ala. 

Obovaria retusa Lamarck. Tennessee river, Florence, Ala. 

Obovaria tinkeri Wright. Yalabusha river, Grenada, Miss. 

Obovaria unicolor Lea. Tallahatchie, Yallabusha, Big Black and 
Tombigbee rivers, very plenty in the last stream at Columbus, Miss. 

Obovaria ellipsis Lea. Tennessee river, Florence, Ala. 

Obovaria castanea Lea. Tallahatchie, Yalabusha, Big Black and 
Tombigbee rivers. 

Plagiola securis Lea. Tombigbee and Tennessee rivers. 

Plagiola elegans Lea. Tennessee river, Florence, Ala. 

Plagiola donaciformis Lea. ‘Tallahatchie, Yalabusha, Big Black, 
Tombigbee and Tennessee rivers. 

Tritogonia tuberculata Barnes. ‘Tallahatchie, Yalabusha, Big 
Black and Tombigbee rivers. In the Black a few specimens were 
found with purple nacre. 

Cyprogena irrorata Lea. Tennessee river, Florence, Ala. 

Obliquaria refleca Rafinesque. Tombigbee and Tennessee rivers. 

Ptchobranchus phaseolus Hildreth. Tennessee river, Florence, Ala. 

Dromus dromus Lea. Tennessee river, Florence, Ala. 

Strophitus spillmanii Lea. Yalabusha river, Grenada, Miss. 

Strophitus tombigbeensis Lea. 'Tombigbee river, Columbus, Miss. 

Strophitus elliotii Lea. Tallahatchie river, Abbeville, Miss. 

Strophitus schafferianus Lea. Tennessee river, Florence, Ala. 

Anodonta grandis Say. ‘Tallahatchie and Yalabusha rivers. 

Arcidens confragosus Say. Yalabusha, Big Black and Tombigbee 
rivers. 


54 THE NAUTILUS. 


Symphynota costata Rafinesque. Tennessee river. Only dead 
and poor ones found. 

Symphynota complanata Barnes. Tombigbee river, Columbus, 
Miss. 

Margaritana monodonta Say. ‘Tennessee river. Large numbers 
were piled up by rocks, logs and in places on the river bank, where 
the musk rats had opened them. The living ones were plen- 
tiful under rocks in the shallow water, as many as two hundred 
being found under one slab. 

Unio gibbosus Barnes. Tombigbee and Tennessee rivers. 

Unio crassidens Lam. Tombigbee and Tennessee rivers. 

Unio arctatus Conrad. 'Tombigbee river, Columbus, Miss. 

Unio tetralasmus geometricus Lea. Yalabusha river, Grenada, and 
a rill near Durant, Miss. 

Pleurobema holstonensis Lea. Tennessee river, Florence, Ala. 

Pleurobema edgariana Lea. ‘Tennessee river, Florence, Ala. 

Pleurobema tumescens Lea. ‘Tennessee river, Florence, Ala. 

Pleurobema dolabelloides Lea. Tennessee river, Florence, Ala. 

Pleurobema decisa Lea. 'Tombigbee river, Columbus, Miss. 

Pleurobema curta Lea. Big Black and Tombigbee rivers. 

Pleurobema taitiana Lea. 'Tombigbee river near Boligee, Ala. 

Pleurobema nux Lea. Tombigbee river, Columbus, Miss. 

Pleurobema bulbosa Lea. 'Tombigbee river, Columbus, Miss. 

Pleurobema nuculopses Conrad. Tombigbee river, Columbus, Miss. 

Pleurobema aesopus Green. Tennessee river, Florence, Ala. 

Quadrula asper Lea. Tallahatchie, Yalabusha, Big Black and 
Tombigbee rivers. 

Quadrula plicata Say. ‘Tennessee river, Florence, Ala. 

Quadrula perplicata Conrad. Yalabusha and Black rivers. 

Quadrula latecostata Lea. Tombigbee river, Columbus, Miss. 

Quadrula heros Say. Tallahatchie, Yalabusha and Tennessee 
rivers. 

Quadrula trapezoides Lea. Yalabusha, Big Black and Tombigbee 
rivers. 

Quadrula cylindrica Say. ‘Tennessee river, Florence, Ala. 

Quadrula metanevra Raf. Tombighbee and Tennessee rivers. 
Common in both streams. 

Quadrula intermedia Conrad. Tennessee river. 

Quadrula stapes Lea. 'Tombigbee river, Columbus, Miss. 


THE NAUTILUS. oD 


Quadrula rumphiana Lea. 'Tombighbee river near Boligee, Ala. 
Quadrula pustulosa Lea. Tallahatchie, Yalabusha, Big Black, 
Tombigbee and Tennessee rivers. Those from the Yalabusha, Tal- 
lahatchie and Big Black have few pustules, and occasionally one is 
smooth. 
Quadrula rubiginosa Lea. ‘Tallahatchie river, Abbeville, Miss. 
Quadrula cerina Conrad. Yalabusha and Tombigbee rivers. 
Quadrula hebetata Conrad. Big Black river, Durant, Miss. 
Quadrula rubida Lea. Big Black river, Durant, Miss. 
Quadrula obliqua Lamarck. ‘Tennessee river, Florence, Ala. 
Quadrula solida Lea. Tennessee river, Florence, Ala. 
Quadrula plena Lea. ‘Tombigbee and Tennessee rivers. 
Quadrula pyramidata Lea. Tennessee river, Florence, Ala. 
Quadrula subrotundus Lea. Tennessee river, Florence, Ala. 
Quadrula ebenus Lea. Tombigbee and Tennessee rivers. Common. 
Quadrula granifera Lea. Tennessee river, Florence, Ala. 


LYMNZA DANIELSI 8P. NOV. 


BY FRANK COLLINS BAKER. 


Lymnea danielsi sp, nov. 


Shell elongated, attenuated, of medium thickness; color ranging 
from very light-yellowish horn to dark chestnut or purple; surface 
shining, growth lines generally fine and close-set, but occasionally. 
as near the aperture, coarse and often raised into ridges; last whorl 
often malleated; spiral sculpture of fine impressed lines; apex 
smooth, spermaceti-white in color; whorls 7, flat sided or slightly 
convex, slowly increasing in diameter; spire long and sharply 
attenuated, longer than the aperture; sutures impressed; aperture 
ovate, often a little triangular, somewhat flaring ; peristome sharp, 
simple, bordered by a dark purple or chocolate band in many speci- 
mens; parietal wall with a thin callus, generally closely appressed 
to the shell and almost closing the umbilical region, leaving a small 
chink; axis gyrate as in stagnalis, forming a heavy, ascending plait; 
interior of aperture varying from white to dark purple. 

Length 28.5, breadth 12, aperture length 14, breadth 6.5 mm. 


56 THE NAUTILUS. 


Length 27.5, breadth 11.5, aperture length 12.5, breadth 6.0 mm. 
Length 29.01, breadth 11.25, aperture length 13, breadth 6.0 mm. 
Length 25.5, breadth 10, —_ aperture length 11.5, breadth 6.0 mm. 
Length 23, breadth 9, aperture length 9.5, breadth 4.75 mm. 
Length 20, breadth 10, aperture length 10.5, breadth 5.5 mm. 

Types: Chicago Academy of Sciences, L. E. Daniels; cotypes, 
Academy of Natural Sciences, Philadelphia; State Museum, Indian- 
apolis, Ind. 

Range: Lake Maxinkukee, Indiana, collected by Mr. L. E. 
Daniels. 

This distinct species may be known by its acutely pyramidal spire 
and small, flaring aperture. It somewhat resembles elongate forms 
of stagnalis. Some time ago Mr. Daniels sent six specimens of this 
Lymnea for identification, It remained unnamed until a recent 
visit to Washington, when a large collection of the same form was 
seen which had been secured by Dr. Paul Bartsch, of the Smithson- 
ian Institution, and its novelty was thereby established. Later, 
Mr. Daniels sent several hundred specimens for examination. Lake 
Maxinkukee also contains Lymn@a palustris, desidiosa and parva. 
The juvenile palustris are liable to be mixed with danielsi if care is 
not taken to observe the form of the shell particularly the form of 
the axis. 

The material collected by Dr. Bartsch contains one monstrosity in 
which the aperture is entire and separated from the body whorl. 
The lot recently sent by Mr. Daniels is wonderfully uniform, show- 
ing that the species is quite stable. A few curious variations occur 
in which the spire is shortened and the aperture is enlarged and ex- 
panded. In some specimens the columella plait is exaggerated to 
such an extent that it forms a pseudo-tooth. In other specimens the 
lower part of the aperture is somewhat effuse. The variation in 
color is remarkable, and it would be of interest to know the cause of 
the rich chestnut and purple color. The normal form is horn-col- 
ored like stagnalis. 

The species is named in honor of Mr. L. E. Daniels, of La Porte, 
Indiana, whose assiduous collecting has added many new and inter- 
esting shells to the fauna of the middle west. 


THE NAUTILUS. 57 


NOTE ON MITRA PICTA REEVE. 


BY SLOMAN ROUS. 


Mitra picta Reeve (Conch. Icon., p. 123, 1844) has been placed 
by Tryon in the synonymy of M. barbadensis. ‘This, I think, is an 
error. A very cursory examination of the two shells will at once 
show them to be distinct. The sculpture of barbadensis consists of 
spiral raised lines, with fine microscopic, spiral and longitudinal 
lines decussating the spaces between them. In picta the spiral lines 
are impressed, closely, deeply foveolated, microscopically striated 
longitudinally and pitted where they cross the revolving lines. The 
fine spiral lines of barbadensis are absent in picta. 

In color JZ picta is a much darker brown, with the white patches 
much more conspicuous, being larger and more numerous often in 
wide longitudinal lines from end to end of the shell, but broken at 
the suture, or often massed on the suture so that the white predom- 
inates. I think usually one-fourth of the surface is white. 

The folds on the columella of MM. barbadensis are five in number, 
sometimes a sixth being just perceptible, in picta there are only four, 
the fourth being very small. I do not recollect ever to have noticed 
a fifth fold, but if it occurs it will be as rare as six in barbadensis, 

Tryon also says ‘‘ Sowerby erroneously refers the latter (picta) to 
the Cape of Good Hope.’”’ This is not an error of Mr. Sowerby. 
I was resident in the Cape over forty years, during which I had the 
pleasure of supplying him with many examples, and I have many 
still in my possession, most, or I think all, of them collected in 
Algoa Bay. 

There can be no doubt that M. picta Reeve, is a valid species, and 
that its habitat is the Cape of Good Hope. That other writers have 
followed Tryon in this synonymy is sufficient reason for bringing this 
error to the notice of conchologists. 


NOTE ON VITREA APPROXIMA AND V, VANATTAI. 


BY H. A. PILSBRY AND BYRANT WALKER. 


Owing to the fact that the proof of the article in which these 
species were described (Proc, A. N. 8. P. 1902, pp. 431-3) was not 
read by both us, some errors unintentionally crept in, which were 


58 THE NAUTILUS. 


not discovered until too late to be corrected in the original publi- 
cation. 

The localities of the two species were reversed and the proper 
credit was not given for the discovery of V. approxima. The types 
of that species were not collected by Ferriss and Walker and did 
not come from Wilson’s Cove. They were collected by Henry 
Hemphill many years before and were distributed by him as “ V. 
wheatleyi Bld.’’ As Hemphill’s stay on Mt. Mitchell was very 
limited (See Proc. P. A. N. S. 1900, page 149) they were no doubt 
collected either along the trail to the summit or on Mt. Mitchell 
itself. Collectors who received specimens from Hemphill as JV. 
wheatleyi would do well to reéxamine them carefully. 

V. vanattai was collected by Walker in Wilson’s Cove. 


SUBSPECIES, MUTATIONS AND FORMS. 


BY T, D. A. COCKERELL. 


Messrs. Pilsbry and Ferriss in discussing the variations of Bul- 
imulus alternatus (Proc. Acad. Nat. Sci. Phila., 1906, p. 140) 
say: “we can find no ground for dividing them [the different forms 
of subsp. marie] into several races, as Prof. Cockerell proposes.” 

It seems opportune to protest against this interpretation of my 
paper of 1891; the more so, since Prof. Pilsbry has before tried to 
insist upon the erroneous nature of my proposed classification. 
There is not, and never has been, the least divergence of opinion as 
to the actual facts. In 1891, of course, we did not know as much 
about the subject as we do to-day, thanks to the excellent re- 
searches of Messrs. Pilsbry and Ferriss; but now, as before, the 
objections to my nomenclature have no valid basis, except in a mere 
difference of opinion as to what should receive a name. 

I grew up in England, accustomed to the methods of the Jeffrey- 
sian school, which paid little attention to slightly differentiated races, 
but bestowed names on all sporadic or individual variations which 
were striking enough to be easily recognized. Professor Pilsbry 
pays little attention to sporadic variations, but is very much in- 
terested in geographical races or subspecies. It was undoubtedly a 


THE NAUTILUS. 59 


serious fault in the English work, that we were so little alert for 
racial characters, and we were also to blame for confusing under the 
name “ variety ’’ several different phenomena. I have watched the 
development of the American researches with admiration, and cer- 
tainly have no fault to find with the methods adopted; but at the 
same time I believe we make a great mistake if we assume that 
sporadic varieties are not worth noting and recording. Professor 
Pilsbry will probably concede all this, in principle, but will object 
to giving them names. It is unavoidable, I suppose, that there 
should be differences of opinion about this; but it is certainly true 
that only when they are named and find a place in the manuals do 
they get properly noticed and recorded. 

The best example of the English method which has so far appeared 
is found in Taylor’s ‘‘ Monograph of the Land and Freshwater Mol- 
lusca of the British Isles,’ now in course of publication. I can 
hardly believe that any naturalist can study this work without ad- 
miring its exhaustive treatment of variation, and perceiving the 
value, from the standpoint of evolution, of the orderly presentation 
of so great a mass of information. At the same time, it is not with- 
out its faults, one of which is the confusion together of different races 
and mutations, treating them all as “ varieties,’ without discrimina- 
tion. Thus under 7Jestacella scutulum, the geographical form major, 
from Algeria, appears as a variety; while its mutation albina is 
made to include all pallid forms, whether from Algeria or elsewhere. 
It is evident that albina should be treated under major as a muta- 
tion; and the name pallida, proposed for the pale mutation of the 
typical scwtulum, should be so applied. Following the Jeffreysian 
method, the term ‘‘ monstrosity ”’ is applied in an illogical manner to 
sinistral mutations and various distortions of the shell, which have 
nothing particular in common. 

Deviations from the normal may be conveniently included under 
three heads: 

1. Subspecies, as generally understood in this country ; forms oc- 
cupying a distinct territory (or it may be ecological position) of their 
own, but intergrading with the species. 

2. Mutations, the so-called spontaneous variations, arising sporad- 
ically from some modification of the germ-plasm, and often persisting 
in limited strains. These include, among other things, sinistral and 
albino variations; and it is desirable that analogous variations of 


60 THE NAUTILUS. 


different species should receive the same mutational name: e. q., 
sinistrorsum for all sinistral mutations. 

The interest attaching to these variations is very great at the 
present time, when so much is being said about the theories of de 
Vries and the Mendelian phenomena. We have, moreover, pretty 
good evidence that such “ sports”’ have given rise to genuine specific 
characters, certain shells (e. g., Vitrea crystallina) being permanently 
“albino,” while whole genera have become sinistral. The sinistral 
mutations are perhaps of especial significance, inasmuch as in the 
nature of the case they must arise ‘‘all at once.” ; 

3. Forms, resulting from the immediate effect of the environment 
upon the individual, and presumably not inheritable in the proper 
sense of the word. I notice that Messrs. Pilsbry and Ferriss, in the 
work already cited (p. 169) name a “form” of Goniobasis.’ These 
variations might be held to have the least significance of the three, 
but they are often striking, and are usually of interest from a 
physiological if not from an evolutional standpoint. It must be 
remembered, also, that while they are said to be immediately due to 
the environment, this is only true in a partial sense; there must 
already exist the inheritable power of responding in this particular 
way to the conditions found. This power of response, as exhibited 
under diverse environments, is itself a thing of great interest to 
every biologist, and no one can doubt its significance in relation to 
the persistence and spread of species. 

The term ‘ variety ’ 
cannot clearly be referred to one of the above categories. The 
simple trinomial may be used for the subspecies; in the case of the 
others, ‘‘ var.,” ‘‘ mut.” or ‘f.’? should be placed before the last 


d 


may well be retained for use in cases which 


name. 

It should be added that not unfrequently ‘‘ mutations’ belong to 
particular races, which are distinguishable only from their power of 
producing them. Thus, I cannot see that the Cochlicopa lubrica of 
the Rocky Mountains and of England are in any wise different 
shells; but in England certain mutations are frequently produced, 
which are never seen in the Rocky Mountains. 


1 Omitting, however, to name the very distinct mutations, figs. 27 and 28, 
p. 167. According to the method IJ advocate, fig. 28 would be mut, speralis, 
and the same name would be applied to similar mutations of other species, 
except when a different one had been earlier provided. 


THE NAUTILUS, XX. PLATE IV. 


KELSEY: COLONY OF EPIPHRAGMOPHORA TUDICULATA. 


oe ae el 


| 


mae NAUTILUS, 


SS  ——— ——— ———— —  —  ————— 


VoL. XX. OCTOBER, 1906. No. 6. 


A HEALTHY COLONY OF EPIPHRAGMOPHORA TUDICULATA. 


BY F. W. KELSEY. 


While enjoying a short vacation, during the month of July of this 
year, I sojourned with an old-time friend, Mr. I. J. Frazee, in 
Pamoosa_ cafon, about fifteen miles north of Escondido, in San 
Diego County. and whenever I went prowling around among the hills 
with my camera I always kept my weather eye open for anything 
that carried a shell on its back. 

My efforts were rewarded by a goodly find of Glyptostoma new- 
berryanum Binney, and Epiphragmophora tudiculata Binney. The 
latter, in one instance, were so plentiful as to deserve more than 
passing notice, and I went to a good deal of trouble to erable me to 
get a photograph to present to the readers of the Nauritus. 

By means of bars, | moved a rock weighing over a ton, back from 
the face of the cliff, so as to allow the light to enter and to give an 
unobstructed view of the colony of helices hibernating in the lower 
part of the cleft between the two masses of rock, and occupying a 


space of not more than two square feet. 


Of course, only a portion of the group shows in the picture, but 
after making the exposure, I collected fifty-eight adult shells and left 
more than half that number of immature ones for seed. 

With one exception, I have never before seen snails in their wild 
state so plentiful. This was in the summer of 1902 when I collected 
over one thousand live Hpiphragmophora stearnsiana Gabb, in a 
space not over fifty yards square at Pacific Beach, near San Diego. 


62 THE NAUTILUS. 


REMARKS ON CERTAIN NEW ENGLAND CHITONS WITH DESCRIPTION 
OF A NEW VARIETY. 


BY FRANCIS N. BALCH. 


The recent announcement by Dall [’05 a. and b.] of a new Chiton 
from New England—the first local addition to the group in many 
years—makes this a favorable moment to introduce an allied novelty 
with a few remarks. 

Tonicella Blaneyi Dall, was founded on a single specimen dredged 
by Dwight Blaney, Esq., of Boston, off Ironbound Island, French- 
man’s Bay, Maine, in twenty fathoms. 

Its diagnostic marks consist substantially in conspicuously radially 
ribbed lateral areas and terminal valves. 

Dall says it seems: ‘somewhat intermediate between Tonicella 
and TVrachydermon, with a leaning toward the former, while it 
seems to be most nearly related specifically to Tonicella marmorea’’— 
an opinion in which I concur. 

But this ‘‘ intermediate ”’ character raises the whole question of the 
true relation of these forms, which I now propose to discuss. 

Trachydermon ruber and Tonicella marmorea are both common 
north of Cape Cod in from five to one hundred fathoms; the former, 
in my experience, outnumbering the latter (which favors the deeper 
waters, ) at least ten to one. 

hey much resemble one another and in fact Gould [ ’70] (who 
retained them both in the Linnean genus Chiton) says of ruber: * It 
is not difficult to distinguish at sight well marked individuals of this 
species from those of C. fulminatus” (i. e., Tonicella marmorea.) 
‘* But there are intermediate specimens which it is not easy to pro- 
nounce upon. In general, this species is smaller, more solid, more 
convex, the valves more beaked, lines of growth more deep, the zig- 
zag lines never appearing, though the posterior margin of the valve 
is sometimes dotted with white and red. The impunctured or un- 
granulated surface, however, is the best, as it is a constant, charac- 
teristic.” 

But Gould’s diagnostic points will not stand. The color-patterns 
do duplicate, and the surface of ruber zs punctate, as Dall has him- 
self pointed out [’79]. I may add that in the coarseness of the punc- 
tation the two overlap. 

The fact is, as Gould indicates, that while the extremes of the two 


THE NAUTILUS. 63 


forms are well separated the series yet approach very near if they do 
not overlap. 

In spite of this the two are to-day almost universally placed by 
American and British malacologists in two distinct genera—genera 
which, in Pilsbry’s monograph [ Pilsbry 92] are rather widely sepa- 
rated. 

I propose very briefly to review their recent generic history. 

Both were included in Gray’s genus Jschnochiton, from which Car- 
penter [’63] split off 7rachydermon as a sub-genus, naming no type 
though his own retiporosus was the first of the species referred to it. 
Neither ruber nor marmoreus was mentioned. He later declared 
it corresponded to the ‘‘second section” of Gray’s Jsehnochiton 
‘¢* * * scales of mantle minute, granule-like,’’ and raised it to the 
rank of a genus. 

In 1873 [Carpenter ’73] he published brief and informal, but im- 
portant, notes of his observations on the Chitons of our New Eng- 
land Coast made during work with our Fish Commission expeditions. 
Of C. ruber he said: “It belongs to Gray’s genus Jschnochiton, 
* * * “section t, mantle scales minute, granular ;’ but as the gill- 
rows are short * * * it is necessary to establish a fresh genus, 
Trachydermon * * *,” 

Of C. albus—now by far the commonest species all along our shore, 
outnumbering ruber and marmorea combined a great many times 
over and scarcely to be missed by any dredger—he said: ‘I twice 
captured a live specimen; but each time it eluded the aftersearch. 
I do not doubt that this is also a Trachydermon * * *.’ While not 
germane to the present inquiry this is interestingly suggestive of 
changes in the Chiton census, 

Of ©. marmoreus, he said: [it] “is Tonicta of H. Adams and 
Gray, simply because the girdle is smooth. The true southern 
Toniciz, however, have pectinated insertion-plates and ambient gills, 
like the typical Ohitons ; while the northern species so-called have 
sharp plates and short gills. They differ, in fact, from Trachy- 
dermon simply in the girdle being destitute of the minute scales. I 
distinguish the group as Tonicella.”’ 

This is the origin of the latter genus, which we now know is far 
removed from true Tonicva. 

Tonicella, then, was originally nothing but a scaleless-girdled 
Trachydermon, with marmorea as its type-species. I have looked in 


64 THE NAUTILUS. 


vain through Dall [ ’79,] Fischer [’87,] Pilsbry [’92] and other 
leading modern authorities for some other tangible distinction between 
the two genera, but all the cited authors retain the two nearly in the 
exact Carpenterian sense above given, though the single diagnostic dif- 
ference results in their rather wide separation under Pilsbry’s scheme. 

The trouble with this single diagnostic difference is that according 
to my observations it does not exist in the type-species, marmorea. 

According to my observations neither ruber nor marmoreus has 
scales, strictly speaking. In both (in ruber always, in marmorea 
usually) the girdle is set with minute, stumpy spines. In ruber these 
have some such shape as a thimble or short finger-cot and are thick- 
set, giving a shagreen-like surface, while in marmorea they are pro- 
portionately longer and thinner, commonly absolutely much smaller, 
usually (if not always) much less thickly set, often very sparse 
indeed and apparently sometines lacking entirely. 

In other words my observations bear out the beautiful accuracy of 
Sars [’78,] Tab. 8, figs. 3 a.—l. and 4 a.—1., on the basis of which 
he erected the genus Boreochiton expressly to contain our two forms, 
in ignorance of Carpenter’s prior Trachydermon. 

If Sars’ figures and my observations are correct there is no more 
ground for generically separating ruber and marmorea on the basis 
of girdle-character [and no other has been suggested] than there 
would be for putting No. 3 and No. 1 sandpapers in different genera. 
If indeed the two species do not actually intergrade in this character, 
at least the difference between the coarsest and finest (or naked) 
marmorea is far greater than the difference between the coarsest 
marmorea and the finest ruber. 

The upshot is that I feel confident marmorea must be removed to 
Trachydermon and stand close beside 7. ruber. What is to become 
of Tonicella after the removal of its type-species to a prior genus I 
leave to others. 

Admitting that ruber and marmorea stand close beside one another 
in the same genus, how are they specifically distinguished? I think 
the answer must be—only by what Dall calls ‘‘ the sum of the char- 
acters.”” Gould’s supposed diagnostic differences have been dealt 
with already. Great as isthe apparent difference between the rough 
red-and-white striped narrow girdle of an extreme ruber and the 
smooth, leathery, green, wide girdle of an extreme marmorea they 
almost if not entirely overlap on this point also. 


THE NAUTILUS. 65 


The most reliable features known to me are the arrangement of 
the notches and radial canals of the anterior valves (which in mar- 
morea are confined to a central segment of say 100°, while in ruber 
they spread through nearly 180°, the limiting pair being obscure) ; 
and the form of the tegumentum of the mid-valves (which in mar- 
morea has a rather sharply convex anterior edge, and in ruber con- 
cave or sinuated). These characters are ascertained in so few speci- 
mens that I am not sure how constant they are. 

I have no doubt, however, that ruber marmorea, taking the ‘sum 
of the characters,” are quite valid species as such things go. 

With these conclusions behind us, let us take up the new forms to 
be discussed. 

The affinities of 7. Blaneyi may be analyzed as follows': girdle- 
covering, like marmorea; girdle-color, like marmorea; punctation, 
like ruber; notches and canals (anterior valve,) like marmorea; form 
of tegumentum (mid-valves,) like ruber. 

» I may add that, examining large series for ribbed specimens, I 
find distinct though slight ‘* ribbing ”’ of the anterior valve in several 
specimens of ruber but none in marmorea.” 

What, now, is 7. Blaneyi? It may be pathological, but nothing 
suggests it. It may be a unique specimen of an established distinct 
species, but if so, since said to be conspicuous and occurring in much- 
worked waters, it must be highly local or excessively rare. It may 
be a “ connected variant ”’ of marmorea, but the intermediate stages 
occuring rather in ruber; it may be a 


») 20 eS eee 
of “ribbing ” are missing, 


“‘connected variant” of ruber, but seems closer to marmorea; it may 


be a ‘disconnected variant,’ ‘ sport” or “ mutant,’? which will 
either become extinct or found a species and which merely happens 
to come from the ruber end of the marmorea series. Finally, it may 
be a hybrid, with the rwber tendency to wrinkling (possibly arces- 
tral?) intensified by the cross as is not uncommon in such cases. 
My own provisional judgment would be for the latter. 

While Mr. Blaney was working in Frenchman’s Bay I was at 
work (in the summer of 1899 and 1901) in the next bay west—Blue 
Hill Bay. My richest ground was a small, stony area in about 12 


fathoms off Harriman’s Point where 7. yuber was abundant while 


1Based entirely on Dr. Dall’s descriptions and figures. The unique specimen 
is in the U. 8S. Nat. Mus. 
2Series much smaller. 


66 THE NAUTILUS. 


T. marmorea was rather uncommon—as indeed I found it through- 
out. On this spot I dredged the form described below—one adult 
and one half grown in 1899, and a young specimen in 1901. 


Tonicella ruber (Lowe) var. index. nov. 

In every respect typical except in color,’ which is in life an ivory- 
white slightly-tinged with green (taking on in alcohol or formol the 
exact appearance of old ivory tinged faintly with yellow,) highly 
polished and absolutely unmarked except for a few extremely faint 
and minute light pink dots on the posterior edges of the mid-valves 
and a very conspicuous dark purple elongated triangle pointing 
posteriorly on the keel of the fifth valve. Girdle very pale, other- 
wise typical. 

A color variety connected with the typical form by intermediate 
stages is perhaps not worth describing, but this form, while clearly 
close to typical suber, appears to be quite discontinuous, Dr. Dall 
pronounces it new to him, which is practically to say new to science.’ 
In spite of the fact that the mark on the fifth valve is often recog- 
nizable in typical specimens (and is probably present in all, though 
disguised by the strong color-patterns) and in spite of the fact that 
very pale, almost white, valves frequently occur and sometimes (as 
Dall has noted) to the number of four or five in a single specimen, 
yet the present variety can be distinguished from any other specimen 
of ruber I have ever seen, across an ordinary room. It is not a mere 
case of faintness of the rosy markings. The markings are wiped 
out and a totally new color scheme (viz. green) introduced. My 
three specimens, dredged two years apart, are absolutely indis- 
tinguishable except for size. The first specimen dredged was adult 
(probably hatched the year previous) the last very young (probably 
breeding the next year.) It is, therefore, not connected with age 
and has persisted on the same spot probably for at least four years; 
but is not a true geographical race (in the sense, for instance in 
which ornithologists use the term) since it is a cohabitant with the 
typical form. 

What, then, is 7. ruber var. index? It may be pathological, or a 
‘“‘ physiological variety ’’—an albino in short—but it’s local persist- 


1 Radula not examined. 


2—In this connection Chiton marmoreus var. ceruleus Winkley should be con- 
sidered. See Naurixus VIII, p. 78, 1894.—Ep. 


a 


THE NAUTILUS. 67 


ence for at least four years looks otherwise. It is scarcely a 
“ variety ’’ in the ordinary sense, for the intermediate terms are com- 
pletely lacking. It is a ‘sport’ or “ mutant” in the sense of a dis- 
continuous variant, breeding true and founding a new centre of varia- 
tion? To my mind the evidence, while wholly inconclusive, 
suggests that possibility. 

T. Blaneyt and T. ruber var. index, add two extremely interesting 
problems to New England malacology-problems which are all the 
more interesting because further work by Mr. Blaney or some other 
fortunately situated student, should go far to yield a solution in the 
course of a few years. 

I may add that the feature from which var. index takes its name— 
the striking dark backward-pointing triangle on the keel of the fifth 
valve—suggests an interesting inquiry of a different nature. It ap- 
pears to be a very wide spread and definite feature, appearing in 
various species in various groups, now more, now less disguised by 
conflicting color-patterns. It is by no means confined to the fifth 
valve though commonest there. I find no notice of this odd Chiton 
character in such examination of the literature as I have been able 
to make. The fifth valve appears to have no specially significant 
topographical relation with the internal anatomy, nor, indeed, is the 
hollow of the keel in any of the valves occupied by any special organ 
so far as I know. Has this mark, then, relation to some specializa- 
tion of the complicated tegumentary system of organs ?' 

Jamaica Plain, Mass., September, 1906. 


PAPERS CITED. 


CarPENTER, PHILIP P. 

[63] Supplementary report on the present state of our knowledge with 
regard to the Mollusca of the west coast of North America. Rep. Brit. 
Assoc. Adv. Sci., 1863, pp. 517-686, 

[73] On the generic affinities of New England Chitons. Bull. Essex Inst., 
V. No. 9, pp. 152-154, Sep. 1873, (Reprinted in Ann. & Mag. Nat. Hist., 
4th Ser., v. XIII, pp. 119-123, 1874.) 


1Postscript. Since the above was written I have noted that.in the * List of 
British Marine Mollusca” published in 1902 by a committee of the Concho- 
logical Society of Great Britain and Ireland—apparently a very careful revision 
in the course of which generic questions were well considered—Z7. ruber and 
7. marmorea are, indeed, united in one genus, but that genus is Tonicella. 
How this result was reached I do not know. 


68 THE NAUTILUS. 


Dau, Wo. H. 
[’79] Report on the Limpets and Chitons of the Alaskan and Arctic Regions, 
with descriptions of Genera and Species believed to be new. Proc. U.S. 
N. M., pp. 281-344, pl. i-v., 1879, (Republished as Art, IV in “Sci. 
Results of Exploration of Alaska.’’) 
[’? 81] On the genera of Chitons, Proc, U. S. N. M., pp. 279-291, 1881, 
[’05 a] A new Chiton from the New England Coast. Proce, Biol, Soe. 
Wash, xviii, pp. 203-204, Sept. 2, 1905. 
[’05 b] A new Chiton from the New England Coast. Nauriuus, xix. No, 
8, pp. 88-90, pl. IV, Dec. 1905, 
Fiscuer, Pau, 
[’87] Manuel de Conchyliologie, etc., Paris, 1887. 
GouLp, Augustus A, 
[’70] Report on the Invertebrata of Massachusetts, 2d, ed. (Binney’s) 
Boston, 1870, 


Piuspry, Henry A. 
[’92] Manual of Conchology, structural and systematic, Vol, XIV. Poly- 
placophora, Philadelphia, 1892. 
PossELT, Hmnry J. 
[ 98] Gr6énlands Brachiopoder og Bléddyr. Conspectus Faun. Groenlandic., 
i, pp. i-xix, 1-298, pl, l-ii and map. Copenhagen (?) 1898. 
Sars, G, O. 
[’78] Mollusca Regionis Arctice Norvegie Bidrag til kundskab. om Norg, 
Ark, Faun., I, pp. I-XVI, 1-466, pl. 1-34 and I-XVIII and Map, Chris- 
tiana, 1878. 


SOME OBSERVATIONS ON THE OVA OF UNIONIDE. 


BY L. 8S. FRIERSON. 


When the ova of those species of Unionide, with which I am 
acquainted, are first noted in the marsupia, they are spherical in 
shape, and consist of a single mass of yolk, surrounded with a clear 
fluid, probably albumen, all confined in a spherical egg-shell mem- 
brane. Soon after fertilization takes place, the yolk undergoes 
segmentation; and goes through a ‘‘ mulberry” stage, and finishes 
with the familiar glochidium. Several interesting facts have been 
noted, which may prove of interest. Some young ova of a Quadrula 
trapezoides Lea were under observation, and being called off a short 
time, on my return I noticed that some of the ova had changed their 


THE NAUTILUS. 69 


shapes in the interim. Some of these ova resembled dumb bells in 
shape (except that the two balls were in close juxtaposition). 
Close observation showed that on the side of the spherical vitellus 
would appear a slight bump or projection. This would slowly grow 
until it had become as large as the remainder of the yolk, thus pro- 
ducing the dumb bell, apparently the fluid contents of the yolk would 
pour itself from one ball into another, and a motion similar to that 
of the well known Ameeba would result. 

The other case was that of the ova of Anodonta imbecillis Say, 
which were in the mulberry stage. ‘These were revolving about an 
axis, making in some instances six complete turns per minute, while 
the axis was fixed for each individual, the direction of this axis bore 
no relation to anything that I could see, but were in every direction. 
Some were horizontal, others perpendicular and many oblique. 

This revolution was confined to the inside of the shell. The egg 
as a whole remaining unmoved, neither the cause or object of this 
rotation could be noted or conjectured by me. Possibly when packed 
together in the marsupium, the motion would influence the shell, and 
so in a measure prevent congestion in the narrow gill passages. 

A solution of salt would in a minute or two cause a visible con- 
traction of the vitellus, and the stoppage of the motion. Being 
curious to know if alcohol would stimulate their motions I placed a 
drop on the slide. In an instant an appearance resembling a violent 
effervescence took place, and at its close every egg-shell had burst 
open! Apparently the endosmosis had so far exceeded the exosmosis 
as to burst the membranes. 

Frierson, La., August, 1906. 


SPHERIUM HENDERSONI N. SP. 


BY V. STERKI. 


Mussel large, almost equipartite, well inflated; superior margin 
curved, with slightly marked rounded, or no angles where passing 
into the supero-anterior and posterior slopes which are slightly 
marked; scutum and especially scutellum distinct; anterior and 
posterior ends rounded, the latter scarcely drawn downward ; beaks 
near or in the middle in half-grown and adult specimens, markedly 


70 THE NAUTILUS. 


anterior in the young, well prominent over the hinge margin, slightly 
inclined towards the anterior, moderately large, rounded in the adult, 
but with a small, more or less flattened area near the center, in some 
specimens bounded by a slight ridge, most noticeable in the young ; 
surface with moderately coarse, subregular sulcation, rather sharp to 
shallow, rugulose, slightly shining, with one or sometimes two well- 
marked, dark lines of growth ; color generally grayish in the adult, 
lighter over the beaks and with light, yellowish zones along the mar- 
gins, often with dark mottlings; in some specimens there are irreg- 
ular zones of bluish; shell moderately thick, substance white, muscle 
insertions distinct, those of the protractor pedis separated from the 
anterior adductors ; hinge moderately stout, curved, formed rather 
as in Sph. solidulum Pr., plate narrow, cardinal teeth short and 
slight; ligament rather long, covered, or a narrow median line un- 
covered in old specimens. 

Soft parts, in alcohol, pale, the syphons with a yellowish tinge ; 
palpi large; outer branchie comparatively small; metapodium dis- 
tinct, but rather small, with the retractor pedis; branchial cavities 
with numbers of young at different stages, the largest 5 mill. long, 
seems to be free in the cavity (not in a marsupium). 

Size: long. 17.5, alt. 14, diam. 9.5 mill. (= 100:80:54.3); one 
specimen 18 mill. long. 

Habitat: Water holes, Crow Creek, 25 miles N. E. of Greeley, 
Colorado, collected by Mr. Junius Henderson, curator of the museum 
of the University of Colorado. There were over 120 specimens in 
the lot, of all stages of growth, few of them full-grown; some also 
were in alcohol. 

So far as can be judged, the present Spherium is distinct from all 
described species, and except for the largest forms of S. stmile Say, 
is the largest. The mussel is higher than in s¢mzle, the beaks nar- 
rower and more prominent, the shell and hinge are stouter, the sul- 
cation coarser, and the color and surface appearance quite different. 

There is a Spherium from several parts of the Mississippi valley, 
somewhat smaller and more inflated, and partly of different outlines, 
regarded as distinct since 1896, but shelved. It may be a form of 
the present species, which was named in honor of its discoverer. 

A few specimens were affected in the same way as those of S. sol- 
idulum Pr. from Towa, recently described in the NAuTILus. 


THE NAUTILUS. 71 
NOTES, 


PorpuLtar ConcHoLocy.—Karl Soffel, of Paris, the well-known 
naturalist, has discovered that snails snore. He was experimenting 
with several specimens, which he had placed in a glass jar in his 
library, and one evening while writing he noticed a peculiar noise 
issuing therefrom. It sounded like a person snoring in the next 
room. M. Soffel approached and found that the snails were sleeping 
soundly and snoring peacefully, the loudest snorer of them all being 
the one that had lived among grape vines. NEw York AMERICAN. 


PUBLICATION RECEIVED. 


Tue TERTIARY AND QUARTERNARY PECTENS OF CALIFORNIA. 
By Ralph Arnold. (U. 8S. Geol. Survey, Professional paper No. 
47, Series C., Syst. Geol. and Paleont., 76.—Pp. 264, plates LIII; 
plate I, a sketch map of California). Students of West American 
Mollusks are greatly indebted to Dr. Ralph Arnold for his mono- 
graph on this subject. In the introduction he says, of the first part, 
it “ Is a brief outline of the different Tertiary and Pleistocene for- 
mations of California, giving the type localities, where, when and 
by whom first described, their salient characters, where they and 
their supposed equivalents are known to occur, the species of Pecten 
found in them and their typical fauna as far as known.” These 
faunal lists will be very useful to students. The second part of the 
work describes and illustrates the Tertiary, Pleistocene, and recent 
Pectens, from Alaska to the Gulf of California, including the latter. 
The classification follows Dr. Dall’s ‘* Tertiary Fauna of Florida.” 

The number of Pectens listed for California is 93, of these fifty 
species and varieties are described as new. 

The well-known form of Pecten equisuleatus Cpr. is figured asa 
variety of Pecten ctrcularis Sowerby, instead of P. ventricosus Sby. 
Pecten hindsii Cpr. is listed as a var. of Pecten hastatus Cpr. rather 
than hericeus, as lately listed, the latter now ranking as a variety 
also of hastatus. Dr. Arnold writes the name as hericius Gould 
rather than the better known form ‘ hericeus.”? Dr. Dall’s Ms. 
name of Pecten (C.) hericius var. albidus and P. ( Pseudamusium) 
randolphi Dall, var. tillamookensis, are two new varietal names of 
Pectens known only among recent forms. 


~ 
i) 


THE NAUTILUS. 


The bibliography ranges from 1829 to 1905. 

A list of bulletins issued by the U. 8. Geol. Sur., under Series 
C., Systematic Geology and Paleontology, is appended to this val- 
uable monograph.—Mrs. M. Burton WILLIAMSON. 


THe Urocorrip MoLiusks FROM THE MAINLAND OF AMERICA 
IN THE COLLECTION OF THE U.S. Nationa Museum. By Paul 
Bartsch. (Proc. U.S. Nat. Mus. 1906, pp. 109-160, 3 plates). This 
paper deals chiefly with Mexican species, describing a number of new 
species and subspecies, and several new subgenera of great interest. 
The United States forms represented in the National Museum are 
also reviewed, and two described as new: AHolospira goldfussv 
anacachensis, from the Anacacha Mts., near Cline and Spofford, and 
from near Eagle Pass, Texas. It differs from goldfussi by the fewer 
and stronger ribs. Holospira (Haplocion) tantalus, from ‘“ some- 
where in Arizona or New Mexico.”’ No comparisons are given, but 
it is said to be distinct from 4. pilsbryt. It is what has been reported 
as pilsbryt from the above territories. H. pilsbryi is to be removed 
from the U. S. list. 

The following errors or emendations require notice because they 
enter into nomenclature: 

Microceramus terasianus (p. 158) is used for M. texanus Pils, 

Microceramus mexicanus (p. 159) should be credited to von 
Martens, not Pfeiffer, 

Ovelocentrum eisent (p. 119) is used in place of C. eisentanum Pils. 

If these changes are intended as corrections or emendations, that 
fact should, we think, have been stated; but the introduction of new 
forms or spellings of specific names on any grounds is to be deprecated. 
== AP: 


Notes on Wisconsin Mou.iusca. By George H. Chadwick 
(Bull. Wis. Nat. Hist. Soc., IV, pp. 67-99, 1906.) A valuable 
annotated list containing 115 species, giving their distribution 
throughout the State, bibliography, ete. 


Notes on Some Lanp ano Fresu WATER SHELLS FROM 
Britisu Cotumpia. By J. F. Whiteaves (The Ottawa Naturalist, 
XX, pp. 115-119, 1906). An interesting faunal list containing 
upwards of thirty species. 


eee. NAUTILUS. 


Vou. EX. NOVEMBER, 1906. No. 7. 


ON THE DISTRIBUTION OF HELIX HORTENSIS MUELLER, IN NORTH 
AMERICA. 


BY CHARLES W. JOHNSON. 


The object of this paper is to record in full our present knowledge 
of the distribution of this species in North America, and to bring to- 
gether the scattered literature bearing on the subject. 

This species which presents such an interesting problem in geo- 
graphical distribution was first recorded from North America in 
1829 by a Mrs. Sheppard, of Woodfield, in an article “‘ On the recent 
shells which characterize Quebec and its environs.”* In this she 
states that Helix hortensis is “found on the bank near the plain of 
Abraham, common in the spring.”” In 1837? Amos Binney de- 
scribed the ‘‘olivaceous yellow,” non-banded variety as Helix sub- 
globosa, stating that it ‘‘is common on the lower parts of Cape Cod 
and Cape Ann, and is very abundant on Salt Island, a rocky unin- 
habited island near Gloucester.””’ This seems to be the first New 
England record, for it is not mentioned by either John M. Earle or 
Col. Jos. G. Totten in their lists of Massachusetts and New England 
shells in 1833.8 

Dr. A. A. Gould in 1841,‘ under Helix hortens?s, adds to the 


1Transactions of the Literary and Historical Society of Quebec, I, p. 193’ 
1829. 


2 Boston Journal of Natural History, I, p. 488, pl. 17, 1837. 


— 


$ Hitchcock’s Rept. on the Geology, etc., Mass., pp. 557, 559, 1833. 
‘Report on the Invertebrata of Massachusetts, p. 172, 1841. 


74 THE NAUTILUS 


localities above cited, ‘‘the region of Portland, Maine,” and also 


gives the St. Lawrence. in 1843 Dr. J. W. Mighels, in his cata- 
logue of the shells of Maine,! refers to H. hortensis as follows: 
“Captain Walden has recently detected this species on a little ‘sland 
in Casco Bay. It must be very plentiful as he obtained more than 
five hundred ‘specimens in a few hours. * * * Most of them have 
five dark brown bands on a yellow ground ; some four, some two, and 
a fewnone. Some have light fawn-colored bands on a white ground; 
in others, in place of colored bands the yellow ground is interrupted 
with nearly transparent zones, one beautiful specimen is hetero- 
strophed.” The latter probably represents the mutation sinistrosum 
of British authors, and seems to be the only American record. In 
the same year James E. DeKay’ under 7, subglobosa says: “I am 
indebted to Col. Totten of the United States engineers for my ac- 
quaintance with this species, which he found near the shore of the 
St. Lawrence, two hundred miles below Quebec.” 

In 1851% Amos Binney adds to his previous remarks on its geo- 
graphical distribution, as follows: ‘It is also said to occur in the 
northern part of Vermont, in Maine, Canada on the St. Lawrence, 
Nova Scotia, and the islands of St. Pierre and Miquelon.” In re- 
ferring to changes which have taken place he says: ‘‘ The prevalent 
characters of this, and probably of other species in a given locality, 
seem to undergo a considerable change from time to time. When I 
first visited Salt Island, where the species abounds, ten years ago, 
it was impossible to find a single specimen with either lines or bands. 
One uniform color prevailed throughout. At the present time the 
banded varieties are said to be not uncommon.” ‘To this Dr. Gould 
appends the following note: “ They have recently been discovered 
by Dr. Samuel Cabot, in great numbers, on House Island, another 
of the little islets in the vicinity of Cape Ann, where all of them are 
of the banded variety. On the Outer Gooseberry, another neighbor- 
ing islet, he found still another variety. 

Mr. Samuel Tufts, Jr., in “ A List of Shells Collected at Swamp- 
scot, Lynn and Vicinity” (Proc. Essex Inst., I, p. 32, 1853), says: 


1 Boston Journal of Natural History, IV, p. 332, 1843. 
2 Natural History of New York, Mollusca, Pt. V, p. 32, 1843. 


8 The Terrestrial Air-breathing Mollusks of the United States (edited by A. 
A. Gould), II, p. 112, 1851. 


THE NAUTILUS. WS 


“ Helix hortensis may be added to this list on the authority of Wm. A. 
Phillips, Esq.” 

Prof. Edward S. Morse in 1864, in his valuable paper, “ Observa. 
tions on the Terrestrial Pulmonifera of Maine, ete.,’ places the species 
under the genus Jachea with the following note: ‘ This species has 
been found in abundance on several islands from Casco Bay to Grand 
Manan; Mr. Fuller found them on one of the extreme outer islands 
of Casco Bay in great profusion.” 

In 1868 O. A. L. Morch, under Helicogena hortensis in his paper 
‘‘On the Land and Fresh-water Mollusca of Greenland,”? says: 
‘“‘ Dr. Beck writes in his manuscript above this species: ‘ Wormskiold 
has told me that he has found on the leaves of the small shrubs of 
Salix lanatus in the vicinity of the interior of the Gulf of Tgaliko a 
banded snail not unlike our garden snail. Two years ago (1844?) 
I obtained a dead specimen from Greenland, probably introduced.’ 
It is certainly found in Iceland.” See, also, Morch, ‘On the Land 
and Fresh-water Mollusca of Iceland,’ page 42, of the same journal. 

In 1869 W. G. Binney and T. Bland in “ Land and Fresh-water 
Shells of North America,” ® refer to the distribution of this species 
as follows: ‘‘ An European species introduced by commerce (?) to 
the northeastern portion of North America. It is found on the 
islands along the coast from Newfoundland to Cape Cod, and on the 
mainland plentifully at Gaspé, C. E., also along the St. Lawrence, 
Vermont (?), Connecticut (?), etc.” 

The above records give all we know of what may be called the 
early history of this species in America, and clearly show that at 
that time its distribution was practically as it is at present. The 
following records are, therefore, probably only the results of more 
eareful collecting over the same area. In taking up in detail the 
distribution of H. hortensis, 1 will commence at the most southern 
locality and go northward. 

The Connecticut record is very doubtful, being based entirely on 
J. H. Linsley’s Catalogue of the Shells of Connecticut, 1845.‘ 


1Jour, Portland Society of Natural History, I, p. 10, 1864; also American 
Naturalist, I, p. 186, fig. 16, 1867. 


2 American Journal of Conchology, IV, p. 38, 1868. 
3 Smithsonian Miscellaneous Collection, VIII, p. 181, 1869. 
4 American Journal Science, XLVIII, p. 280, 1845. 


76 THE NAUTILUS. 


“‘ Helix subglobosa (?) Binney, Weston, Gould, 172.” The late 
John H. Thomson, in his paper on ‘¢ The Land Mollusca of Bristol 
County, Massachusetts,’’’ says: “I have found large numbers of 
the bright lemon-yellow variety of this shell on Martha’s Vineyard 
near Gay Head, never on the mainland. Of course introduced from 
Europe. I tried some in my garden [New Bedford], but the slugs 
Limax, Arion, etc., devoured the young, and I could never succeed 
in getting matured specimens.”’ Rev. H. W. Winkley informs me 
that Rev. Geo. D. Reid has found it in the shell heaps on Martha's 
Vineyard. 

In 1870 Dr. H. A. Pilsbry records this species from Nantucket.’ 
They were taken by the late Dr. Harrison Allen at Sciasconset, the 
four specimens showing the following variations: uniform yellow 
(var. lutea), four and five bands, and one with five translucent almost 
colorless bands. During the same year Dr. Benj. Sharp also found 
it in the town of Nantucket, and later, on the adjacent island of 
Tuckernuck, all of the uniform lemon-yellow variety. 

In 1904 the writer reported the finding of this species at Chatham, 
Mass.2 Although I am aware that it was collected there long 
before, it apparently has not been recorded. They were all very 
pale yellow and bandless, the var. subalbida Locard. Some of the 
older specimens had entirely lost their epidermis, and were chalky- 
white, but still as active as their offspring. They were abundant on 
the steep bluff in front of the light-houses, although I did not dis- 
cover their presence until a rainy day brought them from their hid- 
ing place; not even a dead shell indicated their existence. Mr. 
L. R. Reynolds informs me that he has collected H. hortensis on 
Morris Island, a wooded island just south of Chatham. 

There is a tray of specimens in the museum of the Boston Society 
of Natural History from Provincetown, Mass., collected by Mr. L. 
L. Thaxter. All are the bright yellow, bandless variety (lutea). 
A few uniform light yellow specimens were found by Mr. A P. 
Morse among some cedars near ‘‘ Old Harbor,’’ Cohasset, Mass. 

The next localities to consider are those of the Cape Ann region. 
W. G. Binney in his Manual of American Land Shells,‘ page 496, 


1 Journal of Conchology (British), IV, p. 373, 1885. 

2The Nautiuvs, IV, pp. 24 and 48, 1890, 

3 The Nautitus, XVIII, p. 45, 1904, 

4Bulletin, U. S. National Museum, No. 28, pp. 467 and 496, 1885. 


THE NAUTILUS. iV 


gives ‘‘ Eagle Island, Marblehead; House Island, Manchester ; 
Kettle Island, Cape Ann.” It is also to be found on the mainland 
at Manchester, Magnolia, Gloucester and Rockport. 

Prof. T. D. A. Cockerell, in a paper on ‘ Helix hortensis in 
America,’’! describes the following varieties from Magnolia: pallida 
Ckll., *‘ pale purplish or purplish-brown, without bands ;”’ guinque- 
vittata Mogq., ‘yellow with five bands ;” rufozonata Ckll., straw- 
colored with red-brown bands, five in number; also the varieties 
subalbida, lutea and subglobosa. Later Prof. Cockerell, on the 
‘“ Variations of Helix hortensis at Rockport, Mass.,”? describes the 
following varieties: subglobosa; arenicola, ‘‘bands colorless, translu- 
cent, 12345 ;”’ subalbida and lutea, the latter showing some fifteen 
different band formule including 00000, 12845, 123(45), (123)(45), 
10345, 12045. The latter specimens were collected by Mr. G. H. 
Clapp, who is quoted as follows: ‘* The bandless or very faintly 
banded forms were by far the most common. ‘Typical shells were 
scarce, even less plentiful than the transparent banded variety. On 
rainy days the shells were out by the hundreds.” 

The first locality north of Cape Ann from which this species is re- 
corded is some of the outer islands of Casco Bay. Mrs. A. S. 
Packard has kindly donated to the Boston Society of Natural His- 
tory a large series of this species from the collection of the late Prof. 
Packard. These were collected on Brown Cow Island, Casco Bay. 
The olive-green variety (subglobosa) predominates, grading insensibly 
irto the yellow (lutea); the banded forms represent about ten per 
cent, while a corresponding number could be referred to the variety 
arenicola. Rev. H. W. Winkley has found it on Inner Green Island, 
and Mr. W. H. Weeks, Jr., on Cliff or Crotch Island. In a letter 
from Mr. H. K. Morrell, he writes: “I was at Seguin two days this 
week and the keeper, Capt. H. L. Spinney, happened to say that 
Helix hortensis was found on Pumpkin Knob, on the east side of 
Sheepscot Bay, and was abundant on Matinicus.” Mr. Owen Bryant 
found the five-banded form on Seal Rock, one of the Matinicus 
Group. Mr. Arthur H. Norton also reported it from Seal Rock, and 
has found it on Mosquito or Little Egg Rock, Muscongus Bay. I 
have a specimen in my collection labeled ‘‘ Spruce Head, Me.” Mr, 


1The Navtiuvs, III, p. 139, 1890. 
2 The Navti.us, XIII, p, 32, 1899, 


78 THE NAUTILUS. 


Morris Schick collected it at Bar Harbor. Mr. H. S. Colton and later 
Mr. Dwight Blaney record it as ‘‘ common” on Little Duck Island, 
near Frenchman’s Bay.' 

It is also reported from Grand Manan, Halifax and Cape Breton, 
while from the Gaspé region it has been collected by a number of 
persons. Dr.John M. Clarke found it very common on the lime- 
stone area at Perce. Mr. A. W. Hanham, in an article on the 
‘Mollusca of the Gaspé region,’’® says: ‘‘ Helix hortensis was very 
common on the hillside, generally buried in the sand, several varie- 
ties were taken, the plain form seemed to be the most abundant.” 
They were collected at Barachois, and in a beautiful series which he 
sent to me at the time, I find several specimens in which the bands 
are all united (12345). It has also been found at Gaspé Basin by 
Mr. F. R. Latchford. Abbé Provancher lists it from the Province 
of Quebec as ‘* H. nemoralis.”’ * 

Specimens from Wreck Harbor, East Cape, Anticosta. collected 
by members of the ‘ Arethusa”’ expedition in 1880, are in the col- 
lection of the Boston Society of Natural History. In Newfoundland 
the species seems to extend along the greater portion of the west 
coast. In a recent letter from Mr. L. P. Gratacap he says: “I 
found H. hortensis in considerable numbers in Newfoundland, in 
damp, woody ravines, in the two Codroy valleys, principally in the 
Little Codroy. They were deep in color, with and without bands. 
I did not see it on the east coast.”” Mr. Owen Bryant also failed to 
find it on the east coast. Mr. G. H. Clapp‘ says: ‘‘ A friend has 
just brought me a living example of H. hortensis (12345) from the 
headwaters of Robinson’s River, west coast of Newfoundland.” 
This locality is not far above the Great Codroy. Mr. John Bryant, 
Jr., found it at the Serpentine River, June 20, 1905, and Dr. John 
Bryant at the mouth of East River, Hawkes Bay. During the past 
summer (July 8, 1906) Drs. C. W. Townsend and G. M. Allen 
also collected a beautiful series from the same locality on Hawkes 
Bay. They found them only at the one place, feeding on tie ‘‘ cow 
parsnip.”” All were the bright yellow variety (dutea) with (12345) 
and without bands. 


1The Nautitus, XVII, p. 99, and XVIII, p. 46, 1904, 
2 The Navrixus, VII, p. 65, 1893. 

3 Le Naturaliste Canadien, XIX, p. 186, 1890. 

4The Navritus, XIV, p. 72, 1900. 


THE NAUTILUS. 79 


Dr. Wm. H. Dall in his work on Land and Fresh-water Mollusca,’ 
gives Labrador, but the exact locality is not recorded. Only the 
single specimen referred to by Mérch has been found in Greenland. 
Dr. Dall thinks that it is doubtless an accidental importation. In 
Iceland the species still exists, as will be seen from the following 
letter from Mr. Gratacap: ‘“‘I found hortensis this last summer in 
Iceland, where it assumes a very dark tint, with the longitudinal 
yellow threads strongly marked and the revolving dark bands re- 
duced to one. They were fragile and very scarce. I have only three 
from Seydisfiord, on the east coast.” 

The origin of this species in America has been the subject of con- 
siderable discussion. Amos Binney, in describing subglobosa, and 
comparing it with the European hortensis, and the possibility of its 
being introduced by commerce, says: “It would be difficult, how- 
ever, to account for their inhabiting the barren and retired situations 
at the extremity of Cape Cod, and the rocky islands in the neighbor- 
hood of Cape Ann, while in the intermediate country they are not 
found.” Later (1851) he believed its origin in this country to be 
due to commercial intercourse with Europe. Prof. Edw. S. Morse 
in 1864 (loc. cit.) asks this question: “If this species is really iden- 
tical with the Tachea hortensis of Europe, it seems a little singular 
that here it should only be found on islands frequently barren and 
far out from the land, * * while in the old country they become a 
nuisance in gardens.”’ This is only another way of saying that if this 
species was introduced by commerce, why do we not find it in the 
gardens of Portland, Salem and Boston, instead of on the barren 
islands and exposed headlands ? 

W. G. Binney has always questioned its introduction by commerce, 
and later (1890) informs Prof. Cockerell (Nauriztus, III, 189) 
that he regards the species as naturally present in America, an 
opinion in which Prof. Cockerell also concurs and refutes the theory 
“that the hardy Norsemen of old may have carried the snails about 
for food, and so imported it where they went.”” It seems too bad to 
shatter this fabulous, though pertinent story, before the poet has had 
a chance to versify. Dr. Pilsbry did not, however, coincide with 
Prof. Cockerell’s idea that it is a native American (see NAUTILUS, 
IV, 24, 1890), and later in the Manual of Conchology (IX, p. 321, 
1894), says: ‘* H. hortensis inlabits many of the islands off the New 


1 Harriman Alaska Expedition, XII, p. 20, 1905, 


80 THE NAUTILUS. 


England coast, and being found in pre-Columbian kitchen-midden 
deposits, cannot be regarded as a recent immigrant. Possibly it may 
be the sole survivor of that Viking incursion in the eleventh cen- 
tury.” Rev. Henry W. Winkley, in an interesting article, ‘ Helix 
hortensis in New England” (Nauriuus, XVII, p. 121, 1904), sug- 
gests that it is a survivor of the pre-glacial period. When we con- 
sider its present distribution and power to withstand even the 
climate of Iceland, this seems to be the only solution of the problem, 
which is further strengthened by its discovery in the Pleistocene by 
Dr. Dall (oc. ctt.), who says: ‘* The wide distribution of the species, 
often on uninhabitable islets off a coast little frequented, and its 
presence, which I have verified, in the glacial Pleistocene of Maine, 
tends to confirm the view that it is a prehistoric immigrant if an 
immigrant at all.” 

The question which now arises is this: Why does Helix hortensts 
continue to occupy the outer islands and headlands and not spread 
further inland? I think this can be quite readily explained, as far 
as the New England coast is concerned, by taking into consideration 
the geological character of the coast and the conditions most favor- 
able to the life of land mollusks. The New England coast is com- 
posed almost exclusively of granitic rocks, or, on Cape Cod, of sand 
and gravel, both very unfavorable geological conditions for mollusca, 
owing to the absence of lime; even the more common species of the 
eastern United States are comparatively few on the coastal area. 
Again, the atmospheric conditions even slightly removed from the 
outer shore line are very different from the islands and headlands, 
continually bathed by the ocean’s spray. These barren locations 
make up in lime and moisture what they lack in vegetation; the 
islets are also probably much more free from mice, rats and forest 
fires, which on the mainland destroy large numbers of snails. Poly- 
gyra albolabris and Pyramidula alternata are much more abundant 
on the islands than on the adjacent mainland, nor do these remarks 
apply only to the New England coast. The sandy pine and scrub 
oak barrens of southern New Jersey are void of land shells, while on 
the islands separated from the mainland by a wide expanse of salt 
marsh, and numerous creeks and bays, Polygyra albolabris var. 
maritima is quite abundant. The distribution of hortensis along the 
broad estuary of the St. Lawrence is undoubtedly due to favorable 
physical conditions. 


THE NAUTILUS. 81 


A LIST OF SHELLS FROM NEBRASKA, 


BY BRYANT WALKER. 


The shells enumerated in the following list were all collected by 
Dr. R. H. Wolcott, of the University of Nebraska, Lincoln, Neb. 

Many of the localities represented are in counties not covered by 
Aughey’s List (Bull. U. S. Geol. Survey, 18, p. 697), so that while 
not large, the collection makes a considerable addition to our knowl- 
edge of the distribution of the different species in the State. 

Dr. Pilsbry has kindly identified the Vertigo and Bifidaria. 

Polygyra profunda Say. Omaha. 

Polygyra multilineata Say. 

Polygyra multilineata alba Witter. 

Polygyra multilineata rubra Witter. 

Omaha. A rather small, solid and elevated form. The four 
specimens measure 20} x 154, 202 x 15, 20x 154, 203x 14 mm. 

Bellevue. A single, small, globose, greenish-brown, unicolored 
specimen measuring 163 x 124 mm. 

Polygyra fraterna Say. Omaha. A small elevated, perforate 
form varying from 122-134.x 42-54 mm. Salt Creek, Roca. Simi- 
lar in shape, but rather larger, 13-14 x 5-5} mm. 

Bifidaria contracta Say. Roca. 

Bifidaria pentodon tappaniana Ad. Monroe Canyon, Sioux Co. 

Vertigo ovata Say. Monroe Canyon. 

Vitrea hammonis Stroém. Roca. 

Euconulus chersinus polygyratus Pils. Omaha, Roca and Monroe 
Canyon. 

Zonitoides arborea Say. Lincoln, Roca and Monroe Canyon. 

Pyramidula cronkhitei anthonyi Pils. Monroe Canyon. 

Vallonia parvula Sterki. Roca. 

Succinea grosvenori Lea. Salt Basin, Lincoln. A small, rather 
thick-shelled form, largest specimen 10 x 8 mm. 

Hackberry Lake, Cherry Co. A large, thin-shelled form, quite 
variable in contour, the two largest specimens measuring 14? x 104, 
aperture 74x11 and 154x10, aperture 7x10 mm. Immature 
shells are very similar to those from Lincoln, but more inflated. 

Succinea retusa Lea. Hackberry Lake and Marsh Lake, Cherry 
County. 

Succinea avara Say. Roca and Monroe Canyon. 


82 THE NAUTILUS. 


Lymnea refleca Say. St. Michaels, Buffalo Co., and Bellevue. 

Lymnexa caperata Say. West Point, Cuming Co., and Dewey’s 
Lake, Cherry Co. 

Lymnea desidiosa Say. Monroe Canyon. 

Lymnea palustris Mull. Dewey’s Lake and Marsh Lake, Cherry 
County. 

Physa anatina Lea. Lincoln; Washington, Cedar Co. ; Roca and 
Platte River. 

Physa gyrina Say. West Point, St. Michaels and South Bend. 

Physa gyrina hildrethiana Lea. Lincoln and Hat Creek Valley, 
opposite Monroe Canyon. 

Physa gyrina oleacea Tryon. Bellevue. 

Physa heterostropha Say? Omaha. A few very young specimens 
seem referable to this species. 

Physa ancillaria Say. Hackberry Lake, Dewey’s Lake and 
“‘ Sink’ near Dewey’s Lake, Cherry Co. Fine, large specimens. 
Those from the “‘ Sink” are elegantly striped like Lymnea reflexa 
zebra, a rare occurrence in this genus. 

St. Michael. A more typical example. 

Physa sayi warreniana Lea. Lincoln. 

Physa Sp.? Dewey’s Lake, Cherry Co. A single specimen re- 
sembling P. aplectoides Sterki, but with a short, obtuse spire and 
well-impressed suture. 

Aplexa hypnorum L. Dewey’s Lake and Marsh Lake, Cherry Co. 

Planorbis trivolvis Say. Bellevue, St. Michael, Lincoln, Hack- 
berry Lake and Dewey’s Lake, Cherry Co., Omaha and South Bend. 

Planorbis biearinatus Say. Sidney, Cheyenne Co. One example 
is slightly transversely striate, approaching var. strzatus. 

Planorbis parvus Say. Omaha and Lincoln. 

Segmentina armigera Say. Omaha. 

Ancylus shimekit Pils. Calloway. 

Ancylus rivularis Say. Deadman’s Run, Lincoln. 

Ancylus tardus Say. Lincoln. 

Ancylus Sp.? Lincoln. 

Amnicola limosa Say. Lincoln. 

Spherium simile Say. Lincoln, 

Spherium stamineum Con. Salt Creek, Lincoln. 

Spherium striatinum Lam. Lincoln. 

Musculium jayanum Prime. Lincoln. 


THE NAUTILUS. 83 


Musculium transversum Prime. South Bend, Cass Co., and Wood- 
lawn Creek, Lincoln. 

Musculium secure Prime. Lincoln. 

Pisidium Sp.? Omaha. 

Lampsilis luteolus Lam. Blue River, Crete. 

Lampsilis parvus Bar. Lincoln. 

Lampsilis subrostratus Say. Lincoln. 

Unto tetralasmus Say. Lincoln. 

Anodonta grandis Say. Lincoln. 


NOTES. 


LYMNAEA MEGASOMA. This species is abundant in Cobalt Lake, 
the centre of the wonderful silver-cobalt mines that now hold the 
attention of the world. No shell is found in an environment of such 
enormous qualities of precious mineral. Untold millions in value of 
silver ores, running in many cases over $5,000 to the ton, surround 
the placid lake, the waters of which are so strongly impregnated with 
arsenic as to cause serious intestinal trouble to those who use it. 
L. megasoma however lives and thrives, attaining large size and pre- 
serving to a ripe old age the beautiful brown epidermis cha-acteristic 
of young shells. I have also found Z. megasoma in Lake Temagami, 
the terrestrial paradise of the Algonquins—the North West Arm of 
Lake Nipissing, and at the mouth of French River. It doubtless 
occurs in suitable waters across New Ontario from the Albany River 
to Lake Abittibii—F. R. Larcurorp, Ottawa, Ont. 


MiGRATION OF ScaLLops.—The fact that beds of scallops in New 
Bedford and Fairhaven waters and along the Cape shore are being 
rapidly thinned out, and in some places completely exhausted, while 
new beds are being constantly located about Nantucket, is alleged to 
be causing the Massachusetts Fish and Game Commission to perfect 
a system of procuring more definite data regarding the movements 
of this toothsome shellfish. 

Although the Nantucket fishermen will not commence dredging 
before November Ist, they are keeping up a continual watch for new 
scallop beds, and almost daily one of the boatmen will report large 
beds of the shellfish on flats and shoals which only a week or so be- 
fore were barren. And the old beds which give promise of such a 


84 THE NAUTILUS. 


rich harvest again this year are being watched with interest. The 
scallops at Nantucket are in prime condition this year, and the 
‘‘eyes”’ are much larger than usual. 

The Fish Commission experts are now desirous of obtaining defi- 
nite data concerning the movements of scallops, and have liberated 
in Nantucket harbor a number of the shellfish to which copper tags 
have been attached. For the success of this experiment the com- 
missioners look to the fishermen themselves, who are requested, 
whenever a tagged scallop is found, to record the same to the experts 
on their next visit to the island. It is known that the scallop is cap- 
able of moving through the water quite rapidly by simply opening 
and closing its shell, but how far it can go in a certain length of 
time is what the Fish Commission wants to find out. Perhaps it 
may develop through this experiment that scallops migrate from the 
Cape shore across the sound to Nantucket.—( Boston Hvening 
Transcript.) 


Tue Sentor Epiror or THe NAvriLus, in company with Mr. 
Jas. H. Ferriss, is on a collecting trip in Arizona. He expects to be 
absent about six weeks. 


PUBLICATIONS RECEIVED. 


Tur BEHAVIOR OF THE Ponp SNAIL. Lymneus elodes Say. By 
Herbert E. Walter (Cold Spring Harbor, Monographs, vi). An 
interesting series of experiments and observations. 


New Mo .ivsca FROM THE PERSIAN GuLr,ETC. By J. Cosmo 
Melvill (Proc. Mal. Soc., London, vii, p. 69). Thirty-one new spe- 
cies of Gastropoda and one new Scaphopod are described and figured. 


CapPuLus Lissus Smirn, AS Type OF A ProposED NEw Sus- 
GENUS (MaLLuviuM) oF AMALTHEA. By J. Cosmo Melvill (Proc. 
Mal. Soc., London, vii, p. 81). Under this subgenus is also placed 
the Amalthea benthophila Dall. 


Mo.ruvusca FROM THREE HunpRED FATHOMS OFF SYDNEY. By 
C. Hedley and W. F. Petterd (Records of the Australian Mus., vi, 
p- 212). About 100 species are recorded, of which 11 are new. 


ee NAOTILUS. 


Von. XX. DECEMBER, 1906. No. 8. 


ABALONES AND THE PENAL CODE OF CALIFORNIA. 
BY MRS. M. BURTON WILLIAMSON, 


A rule, or tape-measure, is not considered necessary when collect- 
ing shells along the beach, but if one would not pay too dear for his 
shells on the Pacific Coast of North America it were well to take 
some cognizance of the size of the Halioti detached from the rocky 
coast, especially during certain months of the year. 

Some years ago the writer presented to the American Association 
of Conchologists a series of young Haliotis cracherodii Leech; but 
one would not dare to undertake it now that the law was passed pro- 
hibiting the collecting of such shells ; for it is the young or small 
specimens that the statute protects. 

In the Penal Code of California, section 628, the law prohibiting 
the collecting of abalones’ was incorporated and approved February 
12, 1903, as an amendment to the section for the protection and 
preservation of lobsters, crabs, ete. The law as then amended in 
regard to abalones reads, ‘‘ or any abalone shells or abalones the size 
of which shall measure less than fifteen inches around the outer edge 
of the shell.”’ In 1905 this statute was amended, the size of the 
shell allowed by law being three inches less in circumference for the 
black abalone. It now reads as follows : 

“« Every person who between the Ist day of April and the 15th day 


1 Monterey county appears to have taken the initiative in regulating aba- 
lone-fishing by passing an ordinance, See Dr, R. E. C. Stearns’ article in 
Tue Navtitus for Nov., 1899, Vol. xiii, p. 81. 


86 THE NAUTILUS. 


of September of each year, buys, sells, takes, catches, kills or has in 
his possession * * * any abalones or abalone shells of the kind 
known to commerce as the black abalones (Haliotis Culifornica), 
the shell of which shall measure less than twelve inches around the 
outer edge of the shell, or any other abalone shells, or abalones, the 
shell of which shall measure less than fifteen inches around the outer 
edge of the shell, is guilty of a misdemeanor.” 

Is this law enforced ? 

@ H. I. Pritchard, Deputy State Fish Commissioner, says: ‘ Sec- 
tion 628 has been enforced the same as any other section of the fish 
and game laws.” 

In answer to my inquiry for THE Nautitus, he writes: ‘¢I can 
only give you the names and dates of my personal cases: August 13, 
1904, at Anacapa Island Bay, Webster of Venture, small shells, 
fined $20.00, first offense. Same day and place, Henry Ireland, of 
Los Angeles, same fine. September 15, 1906, James Greenbeck, at 
Redondo, small shells, fined $20.00. There has been a gang of 
Japanese arrested near San Clemente Island, and again near Santa 
Cruz Island and heavily find both times, but cannot give names and 
dates ; they used a diving suit and took 45,000 shells in 60 days.” 

Instead of mentioning ‘* Haliotis californica” as the name of the 
black abalone, our lawmakers would have done better had they left 
the shell with the familiar name of commerce instead of giving the 
scientific one. Jtisto be presumed the name “ Haliotis californica” 
is intended for Haliot’s californiensis,' but this latter name belongs 
to arare variety of the black abalone (Hatiotis cracherodiz), not, to 
my knowledge, collected north of the Mexican line. No concholo- 
gist would testify that the common young black abalones were H. 
californica or H. californiensis, but there is a saving clause in the 
statute that would prohibit a culprit from escape because of the 
technicality of a wrong name. It is this: ‘ or any other abalone 
shells, or abalones,”’ evidently intended for the larger red and green 
species (Haliotis rufescens, Faliotis fulgens, etc.). 

Abalone fisheries are confined to California. One is located a 
few miles from Monterey, another at Whites’ Point in Los Angeles 
county. Dried ‘abalones are prepared and shipped to China from 


1Dr. H. A. Pilsbry on Haliotis cracherodit var. Californiensis Swains, THE 
Navriuvs, Vol, xii, no. 7. p. 79. 


THE NAUTILUS. 87 


San Diego. The Japanese are the men employed as divers. In 
1900 the diving armor with air pumps came into use. Before that 
the product from the Los Angeles county abalone fishery was in one 
year, 1899, “ 60,000 pounds of dried abalones and 30,000 pounds of 
shells of $7,800 value.’’? 

It is said that the Chinese and Japanese are the consumers of this 
white, boneless mollusk (the foot of the animal is the part used, and 
this is white, no matter what the color of the shell may be); but I 
have known of persons eating this sbell-fish—not previously dried 
as prepared for shipping—perfectly unconscious that the name given 
to the soup, or fritters, masked the real one. Cans of daintily pre- 
pared abalones, with another name, are among grocery supplies and 
the contents of a can with butter, milk, salt and pepper, all heated 
in a chafing-dish, is odorous and tender enough to please the palate 
of any fish consumer. 

Hollywood, Los Angeles, Cal., November 9, 1906. 


NEW PISIDIA. 


BY V. STERKI. 


Pis. neglectum, n. sp. Mussel of small size, slightly to scareely 
oblique, rather rounded in outlines, moderately to rather well in- 
flated ; superior margin slightly curved or nearly straight, with more 
or Jess marked angles where passing into the anterior and posterior, 
supero-anterior slope generally marked, slightly curved, anterior end 
rounded angular, posterior part subtruncate, inferior margin moder- 
ately curved; beaks slightly posterior, rather narrow, rounded or 
somewhat flattened on top, moderately projecting over the superior 
margin; surface with fine, subregular to irregular, crowded, con- 
centric striz, microscopically rugulose, dullish or somewhat shining; 
over the beaks there are much finer concentric strizw to the center, 
and the surface is not rugulose, more shining; color light to yellow- 
ish horn to whitish, shell translucent to rather opaque, rather thin; 
hinge rather slight, well formed, plate comparatively broad; right 
cardinal tooth rather short, strongly curved, not reaching the lower 


1 Ann. Rept. Fish Commission, 1901. 


88 THE NAUTILUS. 


edge of the plate, its posterior end much thicker, deeply grooved or 
bifid; there is an impressed groove between it and the edge of the 
plate; left anterior strongly curved to sharply angular and bent up- 
ward, the posterior oblique, curved; ‘lateral teeth’? moderately 
stout, the outer ones of the right valve distinct, the anterior left 
cusp pointed, abrupt, the surfaces of all cusps rugulose; ligament 
rather strong. 

Long. 3, alt. 2.6, diam. 1.8 m., types, and average. 

Soft parts not examined. 

Habitat: North America; widely distributed and common in 
Ohio, Michigan and Illinois, and probably over the Nearctic prov- 
ince, seen also from New York, Canada and Alabama; living in all 
kinds of waters. The specimens regarded as types are from a brook 
at Krumroy, Summit Co., Ohio, 1900 (No. 3265, collection of 
Cycladide). 

This Pisidium was regarded as probably distinct years ago; since 
then the material has been looked over and compared dozens of 
times. It seems to be the central form of a group which is one of 
the most difficult to deal with of all our Pistdia. There are a host 
of forms ranging under it or near it, really or apparently, and if only 
a few specimens from various places were on hand, they might well 
be regarded as distinct. But among the thousands seen, there are 
more or less plainly intermediate forms. Some are still under doubt 
and scrutiny, and waiting for additional material in order to ascer- 
tain their true positions. Some forms have a slight resemblance 
to some small forms of the polymorphous “ abditum Hald.,’’ others 
to small forms of noveboracense Pr. It may also be said that the 
more typical specimens resemble Pis. pusillum Gmel. more than any 
other of our Pisidia does. 

Var. (?) corpulentum n. Larger, more inflated, somewhat more 
elongate and oblique, beaks generally somewhat more posterior, 
large, prominent ; concentric striz coarser, surface more dull, color 
whitish to yellowish, to grayish, and even bluish with lighter zones 
along the margins. 

Hab.: Grand River, Grand Rapids, Mich., collected repeatedly 
by Dr. R. J. Kirkland in good numbers ; a similar Pisidium is from 
Sillyeash creek, near Joliet, Ill., collected by Messrs. J. H. Ferriss 
and J. H. Handwerk. It seems that these forms are connected with 
Pis. neglectum, although the Grand River, Mich. form, is considerably 
different and appears to be distinct. 


THE NAUTILUS. 89 


Pis. trapezoideum St. (described in the Nautitus, IX, p. 124, 
1896), from the middle Atlantic States, and probably the same from 
Grand Rapids, Michigan, is very different from neglectum, yet there 
may be intermediate forms connecting the two. Should that prove 
true, trapezoideum would probably better be regarded as a specially 
differentiated form, a variety of neglectum, and not vice versa. 
Priority cannot be considered if there are better reasons for a differ- 
ent point of view. 


THE BROOKLYN CONCHOLOGICAL CLUB. 


To the Nautilus : 

The Brooklyn Conchological Club was formed over two years ago 
by a number of collectors and admirers of shells. Several of the 
members have extensive and valuable collections, the product of 
many years of careful selection and world-wide correspondence with 
collectors. THe NavrTILus is a welcome visitor at the club. Two 
of our members’ names are found on its advertising pages, and 
occasionally an article appears from the pen of our esteemed friend 
and conchologist, Mr. Sloman Rous. We hope to hear of similar 
clubs in other cities, and from individual collectors. 

At the October meeting of the Brooklyn Conchological Club, Mr. 
Maxwell Smith exhibited specimens of the shells collected by him 
last summer in Otsego County, N. Y., also a map of the stations 
visited. Mr, Smith gave an interesting account of his experience in 
collecting. A list of the shells exhibited includes 54 species. 

Siras C. Wueat. 


SHELLS OF RICHFIELD SPRINGS, NEW YORK AND VICINITY. 


BY MAXWELL SMITH. 


The following species were all found in Otsego Co., with the ex- 
ception of those from Weaver and Young’s Lakes (Little Lakes), 
Herkimer Co. The collection was made in July and August, 1906. 
It is interesting to note that Lymnza gracilis Jay was reported from 
Canadarago Lake previous to 1870 by a number of authors. I 
hunted diligently for this species but did not find it. From Allan 


90 THE NAUTILUS. 


Lake the water flows into Otsego Lake and a number of species 
occur which are not found in Canadarago. From the latter the 
streams empty into the Susquehanna River and species finally inter- 
mingle. 

Amnicola limosa Say. In every lake and a large number of 
streams. : 

Pomatiopsis lapidaria Say. Canadarago Lake. 

Valvata tricarinata Say. Weaver, Canadarago and Allan Lakes. 

Somatogyrus integer Say. Sunset Creek. 

Campeloma decisum Say. Canadarago Lake. 

Omphalina fuliginosa Griff. Sunset Hill, near Canadarago Lake. 

Omphalina inornata Say. Sunset Hill. 

Zonitoides nitidus Miiller. Woods near Richfield Spa. 

Zonitoides arboreus Say. Sunset Hill. 

Gastrodonta ligera Say. Sunset Hill. 

Pyramidula alternata Say. Everywhere with other species (one 
albino farm). 

Pyramidula striatella Anthony. East of Sunset Hill. 

Polygyra tridentata Say. Sunset Hill, west of Canadarago Lake. 

Polygyra Sayi Binney. Sunset Hill, east of Canadarago Lake, 
near Oak Creek. 

Polygyra albolabris Say. Cooperstown, near Canadarago Lake, 
Sunset Hill. 

Polygyra palliata Say. Washed down Town Creek. 

Polygyra thyroides Say. East of Canadarago Lake. 

Polygyra monodon Rack., var. fraterna Say. Woods near Rich- 
field Spa. 

Vallonia pulchella Miller. In fields, everywhere. 

Circinaria concava Say. Sunset Hill, near Allan Lake. 

Vertigo ovata Say. Under bark, near Richfield Spa. 

Vertigo milium Gould. Near Sunset Creek. 

Cochlicopa lubrica Miller. Cooperstown (Council Rock), Rich- 
field Spa. (town), near Young’s Lake. 

Carychium exiqguum Say. Near Sunset Creek. 

Suceinea ovalis Gld. Near Canadarago Lake, near Oak Creek, 
Cooperstown. 

Succinea obliqua Say. Sunset Hill, in fields. 

Succinea tottentana Lea. Near Allan Lake. 

Suceinea retusa Lea, var. peariensis Walker. Near Oak Creek. 


THE NAUTILUS. 91 


Lymnea stagnalis Linn. Canadarago Lake. 

Lymnea columella Say. Allan, Weaver Lakes. 

Lymnea palustris Miiller var. Canadarago Lake, Otsego Lake. 

Physa ancillaria Say. Allan Lake. 

Physa heterostropha Say. Canadarago and Otsego Lakes and 
many streams. 

Planorbis trivolvis Say. Allan Lake. 

Planorbis dilatatus Say. Canadaraga Lake. 

Planorbis campanulatus Say. Canadarago Lake. 

Planorbis bicarinatus Say. Sunset Creek, Canadarago Lake. 

Planorbis exacutus Say. Near Weaver Lake. 

Plinorbis deflectus Say. Young’s Lake. 

Planorb/s albus Miiller. Allan Lake, Otsego Lake. 

Ancylus rivularis Say. Ouk Creek. 

Ancylus tardus Say. Weaver Lake. 

Ancylus fuscus Adams. Allan Lake. 

Ancylus parallelus Hald. Town Creek. 

Spherium simile Say. Sunset Creek, Town Creek, Allan Lake, 
Weaver Lake. 

Spharium rhomboideum Say. Allan Lake. 

Spharium striatinum Lam. Sunset Creek. 

Pisidium ventricosum Prime. Canadarago Lake. 

Pisidium noveboracense Prime. Canadarago Lake. 

Lampsilis radiatus Gmelin. Canadarago Lake. 

Strophitus edentulus Say. Sunset Creek. 

Anolonta marginuta Say. Weaver Lake. 

Alasmidonta undulata Say. Sunset Creek. 

Unio complunatus Solander. Oak Creek. 


A NOTE UPON THE INSUFFICIENCY OF THE OPERCULUM AS A BASIS 
OF CLASSIFICATION IN ROUND-MOUTHED SHELLS. 


BY L. P. GRATACAP. 


In 1801 Lamarck established the genus Cyclostoma which he 
made for the reception of a very miscellaneous and unclassified group 
of shells, characterized however by certain common features as 
the entire round aperture, continuous peristome, and operculum. 


92 THE NAUTILUS. 


Among this unassorted assemblage were placed marine, fluviatile 
and terrestrial shells. Later Lamarck withdrew the marine and 
fluviatile shells, and in 1819 he limited the genus Cyclostoma to 
terrestrial species. 

In 1829 the Rev. M. G. Berkeley described the anatomical struet- 
ure of Cyclostoma elegans (Zoblogical Journal, vol. iv, p. 278), and 
alluded to the operculum as “ovate spiral, calcareous.” This de- 
scription was, up to that time, the most extended and accurate that 
had been published, of the soft parts of the animal of this group of 
mollusca. 

In the second edition of the Aistotre Naturelle des Animaux sans 
Vertebres, edited by Deshayes and Milne-Edwards (1838), the 
diagnosis is Testa varia; anfractibus cylindraceis. Apertura eircin- 
ata, regularis: marginibus orbiculatim connexis, aetute patenti-reflexis. 
Operculum. 

In his observations Lamarck alludes to the similarly circular and 
entire margins of the aperture of Padudina, but remarks that in adult 
cyclostomas the edge of the peristome is reflected, whereas in 
Paludina and generally in fluviatile shells these edges are sharp and 
plain. 

The comments of the editors exhibit the diversity of views then 
held by naturalists as to the affinities of these interesting shells; 
some gave full weight to the fact of their aerial respiration and 
grouped them in a special order, in which their manner of respira- 
tion, their terrestrial habit, and the possession of an operculum 
formed distinguishing or separative features ; while others consider- 
ing their respiration unimportant, dwelt upon morphological re- 
semblances to Turbo, Trochus and Scalaria. These resemblances 
were the two tentacles, the absence of eye-stalks, the eyes placed at 
the base of the tentacles, and the respiration anteriorly open. This 
latter view was advocated by Cuvier. It was further emphasized by 
their unisexual nature, and in the armature of their lingual ribbon, 
which however rather coincides with that of pectinibranchiate gas- 
teropods. Milne-Edwards and Deshayes regarded the cyclostomas 
as terrestrial Turbos breathing air. 

Amongst the forty-five species enumerated by Lamarck in 1838, 
are representatives of the genera Pterocyclas, Cyclophorus, Choano- 
poma, Tudora, Ohondropoma, Helicina, Cyclotus, Otopoma, Lepto- 
poma, Truncatella, Megalomastoma, and Realia. 


THE NAUTILUS. 93 


Draparnaud had first separated the marine round-mouthed shells 
from their supposed terrestrial congeners, which led Lamarck to 
erect his genus De/phinula for the reception of some of the marine 
forms, and later Paludina for others, which genus was substituted for 
his own Vivipara. Helicina although proposed us a genus by Lam- 
arck was not grouped by him near the cyclostomous genera. Its 
operculiferous character was known, but in spite of this fact its 
position was assigned in the family of the Colimaces (Pulmonifera), 
amongst the helices, bulimi and pupas. Ferussac had first recog- 
nized that the genera Helicina and Cyclostoma were closely related, 
and had, in deference to their similar breathing organization, placed 
them at the end of the air-breathing gasteropods. 

Reeve united Pupina, Truncatella, Cyclostoma, and Helicina in the 
single family Cyclostomacea. Menke as early as 1828 appears to 
have separated the operculate shells into two families, typified by 
Helicina and Cyclostoma. Dr. Gray (1842) first pointed out the 
significant morphological distinction between Cyclostoma and He- 
licina, and assigned to the family Helicinidae the three genera 
Helicina, Lucidella, and Aleadia, while Swainson (1840) had 
grouped together Helicina Lam., Pachytoma Swains., Oligyra Say, 
Trochatella Swains., and Lucidella Swains. In the monograph 
(1846) in Kuster’s Conchylien Cabinet upon ‘ Die gedeckelten 
Lungenschnecken,” by L. Pfeiffer, the family Helicinacea was re- 
garded as composed of the genera Trochatella Swains., Lucidella 
Swains., Helicina Lam., and the family Cyclostomacea of Cyclostoma 
Lam., Choanopoma Ptr., Cyclophorus Montf., Leploma Pfr., Megalo- 
mastoma Guilding, Pupina Vignard, Callia Gray, Pomalias Studer, 
Aulopoma Trosch., Craspedopoma Ptr., Myxostoma 'Trosch., Ptero- 
cyclas Bens., Acicula Wartmann, Geomelania Pfr., Hydrocena 
Parreyss. 

The generic divisions thus slowly evolved had been largely based 
upon the characters of the opercula, and it seems that the credit of 
emphasizing this feature was due to J. E. Gray, who in 1825 pub- 
lished in the ZoGlogical Journal and Philosophical Transactions the 
results of his observations on their structure, formation and growth, 
and insisted on their affording “ characters for the division of families 
and genera as the shell of the gasteropods themselves, and that to 
neglect them in the description of the genus or species is quite as 
rational as to describe only the single valve of a bivalve shell.’’ The 


94 THE NAUTILUS. 


closing words of this quotation allude to Gray’s opinion that the 
operculum of the gasteropods was homologous or identical with the 
second valve of a lamellibranch. 

( Zo be continued.) 


HELIX HORTENSIS IN NEWFOUNDLAND. 
BY T. D. A. COCKERELL. 


Mr. L. P. Gratacap has very kindly permitted me to examine a 
dozen specimens of Helix hortensis which he collected at Little Codroy 
river, Newfoundland, as reported in Nauri.us, November, p. 78. 
They are thin, and the dark bands when present are dull reddish- 
brown, not black. The forms represented are: 

(1) Clear yellow, bandless = lutea Moquin. Two. 

(2) Greenish-yellow, bandless = subglobosa Binney. One. This 
seems to have been stained owing to the decay of the animal, and 
may originally have been more nearly a pure yellow. 

(3) Yellow, five-banded = guinguevittata Moquin. Five. 

(4) Yellow, formula (123)45 = pauluecta Locard. One. 

(5) Yellow, all the bands united = bouchardia Moquin. Three. 

In the British museum there is an example of the variation 
vallotia Moquin, from Labrador. It is yellow, with formula, Osas- 

Mr. Gratacap has also permitted me to see the shells collected at 
Seydisfiord, Iceland, as reported in NaurTitus, p. 79. They are 
Helix arbustorum, rather thin, but otherwise typical. 


NOTES. 


Oysters CarrieED BY SEAWEED.—Some time ago an oyster- 
breeder in Morbihan, France, named Martine, called the attention of 
the French Academie des Sciences to the appearance of unknown algae 
that threatened to ruin the oyster-beds established at the mouth of 
the river Vannes. These algae (which the breeders called ballons— 
balloons) assume the form of little brownish-green leather bottles or 
wineskins, which stick to the oysters, and which, microscopic at the 
start, very soon reach the size of a large hen’s-egg. Formed of a 
very thin, elastic and rather frail coat, these bottles, usually full of 


THE NAUTILUS. 95 


water, fall in upon themselves at the moment of low tide. They be- 
come empty then by the rents in their exterior; but, in virtue of 
their elasticity, they fill up again with air. At the return of the 
tide, they thus form a fioat more than sufficient to raise up the oyster 
that serves them as support. Therefore at each great tide, when the 
beds are wholly uncovered, the oysters are seen to disappear in the 
offing upon this automobile algae. 

According to M. Bornet, we have the Colpomenca sinuosa, abound- 
ing notably in the Mediterranean in the tracts adjacent to the At- 
lantic. It was pointed out for the first time at Cadiz at the begin- 
ning of the last century, and has never been seen farther north. It 
no doubt came upon the hull of a vessel, and, having found in the 
gulf of Morbihan suitable water, it multiplied there. 

Hitherto no other effective means has been found of combating 
this alga than to sweep the beds with prickly fagots. It is to be 
hoped that a rigorous winter will be sufficient to cause it to dis- 
appear.—Scientific American. 


Britisu Co_tumpBia Suetits.—Mr. Stewardson Brown, of the 
Academy of Natural Sciences of Philadelphia, collected the follow- 
ing species of land shells while on a botanical expedition in the 
Canadian Rocky Mountains. At Field, B. C.: Thysanophora in- 
gersolli Bid., Vertigo gouldit Binn, Vertigo v. elutior Scerki, Vertigo 
modesta Say, with the form pur/etal’s Anc., Vitrea hammonis Stim, 
Vitrea binneyana Mse., Euconulus fuleus Drap., Zonitoides arborea 
Say, Pyramidula c. anthonyi Pils., Sphyradium edentulum Drap., 
Succinea avara Say, aud at Banff, Alberta: Vertigo modesta Say, 
Vitrea binneyana Morse, Huconulus fileus Drap., Pyramidula ec. 
anthonyt Pils., Sphyradium edentulum Drap.—E. G. VANATTA. 


ApvpitionaL Locarities ror Herix norrensis.—Since the 
publication of my article on the distribution of Aelia hortensis in the 
November Nauritus, I have received the following additional 
records. From Curtain Island, Richmond Bay, Prince Edward 
Island, a specimen of the plain yellow variety was received by Rev. 
Henry W. Winkley from a Mr. Ives. In 1902 Mr. Geo. H. Clapp 
collected the banded variety (12345) at Cape Porpoise, about three 
miles from Kennebunkport, Maine. Mr. Francis N. Balch has found 
it at Orleans, Massachusetts, and also at Coliasset. 


96 THE NAUTILUS. 


I overlooked Mr. L. P. Gratacap’s record of ‘ Hare Island,” St. 
Lawrence River, given in his catalogue of the Binney and Bland 
collection of the terrestrial air-breathing mollusks, etc. (Bull. Amer. 
Mus. Nat. Hist., XIV, p. 396, 1901). ‘This species seems to be 
more widely distributed than has been generally supposed. It is to 
be hoped that these articles will lead to a still further knowledge of 
its geographical distribution—C. W. Jounson. 


PUBLICATIONS RECEIVED. 


Stupies oN AvsTRALIAN Mo.iusca, Pr. IX. By C. Hedley 
(Proc. Linn. Soc., N. S. Wales, pt. iv, 1905). Twelve new species 
are described and figured, with critical notes on other species. 


SoutnH AUSTRALIAN NUDIBRANCHS, AND AN ENUMERATION OF 
THE KNOWN AUSTRALIAN Species. By Herbert Basedow and 
Chas. Hedley (Trans. Royal Soc., 8. Australia, xxix, p. 134). 
About 80 species are recorded, six new species described, and a 
number of others redescribed and illustrated by 12 plates of beauti- 
fully-colored figures. 


Report on Moiivusca CoL_._ectTeD By Mr. Herbert BAsepow 
ON THE SoutH AUSTRALIAN GOVERNMENT EXPEDITION 1903. 
By Charles Hedley (Trans. Roy. Soc.,-S. Australia, 1905). A 
valuable contribution to knowledge of the snails of the ‘* Eremian 
Region’”’ of Central Australia. “Though quite unrelated to the 
forms that people the arid regions of Asia, Africa or America, these 
Australian shells repeat in their chalky texture and rough sculpture 
the features of foreign species subjected to similar environment.” 
Several new species of Thersites and Xanthomelon are described, and 
a beautifully-drawn plate illustrates the principal forms. 


A CATALOGUE oF THE Motuusca or ILriinois. By Frank 
Collins Baker (Bull. Illinois State Lab. Nat. Hist., vii, pp. 53-136, 
Sept., 1906). An excellent catalogue, giving in full the distribu- 
tion of each species throughout the State. The number recorded 
is 241 species of fluviatile and 91 species of terrestrial mollusks. A 
very exhaustive bibliography is also given. 


ae NAUTILUS. 


VoL. XX. JANUARY, 1907. No. 9. 


MOLLUSKS OF CAZENOVIA, N. Y. 
BY JOHN B. HENDERSON, JR. 


_ The village of Cazenovia, Madison Co., N. Y., about 20 miles 
southeast of Syracuse, is upon the northern edge of the elevated 
plateau of central New York. It is surrounded by hills more or less 
wooded which in conformation form series of north and south valleys 
of considerable depth, in one of which lies Cazenovia lake, with the 
village at its southern end. At the altitude of Cazenova (110° ft.) 
the sedimentary rocks are shaly, but about two hundred feet below a 
white limestone appears. The hills are grooved by deep ravines, 
cutting many feet down into the limestone. These ** Gulfs”’ as they 
are locally called, are heavily wooded, always damp, and offer excel 
lent collecting-grounds. Within a radius of a mile about the village 
many types of station can be found with favorable soil, forest, stone, 
and moisture conditions. 

Messrs. Pilsbry, Walker, Clapp and the writer enjoyed a three 
days’ collecting trip through the Cazenovia valley, and the following 
eatch, remarkable in the number and quality of specimens, was made. 
Comparatively little time was given to the lake. 


Vallonia pulchella Mill. Polygyra thyroides Say. 
payee excentrica Sterki. ‘*-— fraterna Say. 
- Polygyra tridentata Say (small). — Strobilops labyrinthica Say. 
“say? Binn. ~ Bifidaria contracta Say. 
“ albolabris Say. Vertigo pygmza Drap. 
“6 “© dentuta (Walker). ‘¢ gould’ Binn. 
js dentifera Binn. ‘“¢ _ventricosa elatior Sterki. 


“ palliata Say. Cochlicopa lubrica Miill. 


98 THE NAUTILUS. 


Circinaria coneava Say. 
Omphalina fuliginosa Griff. 
- tnornata Say. 
Vitrina limpida Gld. 
Vitrea cellaria Miill. 
«  hammonis Strém. 
“  indentata Say. 
‘© — rhoadsi Pils. 
Euconulus chersinus polygyratus 
Pils. 
Zonitoides nitida Mull. 


es arborea Say. 

cc minuscula Binn. 
Gastrodonta tintertexta Binn. 

“ ligera Say. 


Agriolimax campestris Binn. 
“ agrestis L. 
Philomycus carolinensis Bosc. 


Arion fasciatus Nils. (very 
abundant). 
Pyramidula alternata Say. 

oe perspectiva Say. 

Ss striatella Anth. 
Flelicodiscus lineatus Say. 
Succinea retusa Lea. 

iN ‘© peoriensis Wolf. 

a ovalis Say. 

"5 “ var. (a striking 
form, apparently 
new). 

3 avara Say. 


Limnea reflexa Say. 


Limnea cataseopium Say. 
“  umbrosa Say. 
“  emarginata Say. 
“«  desidiosa Say. 
«palustris L. 
‘© humilis Say. 
“columella Say. 
‘© gwascoensis Baker. 
Planorbis trivolvis Say. 


ue “<  binneyt Tryon. 
aie campanulatus Say. 
66 bicarinatus Say. 


6 deflectus Say. 
parvus Say. 

we exacutus Say. 
Valvata tricarinata Say. 
Physa gyrina Say. 

“© saytt Tapp. 
“integra Hald. 
‘  heterostropha Say. 
Aplera hypnorum L. 

‘6 “6 glabra DeKay. 
Ancylus rivularis Say. 
Pisidium variabile Prime. 
Spherium striatinum Lam. 


. 


e occidentale Prime. 

a simile Say. 

“ fabale Prime. 

“ stamineum Con. 
Calyculina securis Prime. 

6 transversa Say. 

ns partumeia Say. 


NEW PISIDIA. 


BY V. STERKI. 


Pis. superius vn. sp. 


Mussel rather small, well inflated, ovoid in 


outlines, rounded or subangular; beaks rather posterior, broad, 
rounded or somewhat flattened on top, projecting over the superior 


THE NAUTILUS. 99 


margin which is slightly curved, with slightly projecting, rounded 
angles at the scutum and scutellum, the latter often covered in lateral 
aspect, in full-grown mussels; supero-anterior slope well marked, 
slightly curved to nearly straight, posterior part subtruncate to 
rounded; young specimens are generally more angular in outlines 
than adults ; surface with very fine, crowded, concentric striz and 
generally a few well marked lines of growth, somewhat shining ; 
color light to deeper horn, generally with lighter zones along the 
margins ; shell rather thin, more or less translucent ; hinge slight, 
well formed, plate narrow, right cardinal tooth moderately to strongly 
curved, its posterior part thick and grooved; a deep, impressed 
groove in the plate between its inferior edge and the cardinal tooth ; 
left anterior strongly curved, posterior oblique, slightly curved to 
nearly straight ; ‘* lateral teeth’ with short, slight, thin cusps, the 
left ones and the right anterior pointed, the outer anterior of the 
right valve distinct, the posterior quite small; ligament rather slight. 

Long. 3.2, alt. 2.8, diam. 2.2 m. (100 : 37.5 : 69) average. 

Long. 3.5, alt. 3, diam. 2.4 m. 

Soft parts not examined. 

Habitat: Mountain Lake and Pine River, Marquette county, 
Michigan, on the south shore of Lake Superior, Mono Lake, Musk- 
egon county, Michigan, collected by Mr. Bryant Walker. A 
Pisidium from the Isle Royale, in Lake Superior, and some speci- 
mens from other places in Michigan, seem to range under the same. 
Several hundred specimens at all stages of growth, collected in 
Mountain Lake from 1895 to 1905, are remarkably uniform and 
characteristic in appearance, although showing slight differences in 
outline. There is none of the described species under which the 
present Pisidium might be ranged, and it is similar only to trape- 
zoideum, being of about the same size and approximately the same 
shape. But the latter mussel is much more angular in outline, its 
supero-anterior slope is steeper, the anterior end is more angular 
and more below the longitudinal median line, the beaks are narrower, 
the surface more dull, and the hinge much stouter. Although 
known for over ten years, this Pistdivm has not been published 
before, as I thought it might be connected with some other species. 


Pis. suecineum n. sp. Mussel of moderate size, moderately in- 
flated, somewhat elongate, little oblique; beaks slightly posterior, 
rounded or slightly flattened, somewhat projecting over the upper 


100 THE NAUTILUS. 


margin, which is slightly curved, supero-anterior slope slightly 
marked, curved to nearly straight, anterior end rounded angular, 
posterior part subtruncate, inferior margin moderately curved; sur- 
face with fine to very fine irregular striz, shining, shell thin, trans- 
parent to translucent, of wine to deep amber color; hinge of the 
same formation as that of P. noveborucense, but less curved and 
slighter ; ligament rather short and strong. 

Long. 3.6, alt. 3, diam. 2 m. (100 : 83 : 55.5) average. 

Long. 4, alt. 3.3, diam. 2.4 m. 

Soft parts not examined. 

Habitat : North America, probably of wide distribution ; seen from 
the Atlantic States from Maine to Virginia ; New York (near Mo- 
hawk), Ohio, Michigan, Indiana; common e. g. in the vicinity of 
Washington, D. C., and Alexandria, Va., where it was collected in 
1896 by the writer, and in the vicinity of New Philadelphia, O. 

In shape it has a resemblance to P. noveboracense Pr., with which 
it seems to range under the same group, but is smaller, the beaks are 
less prominent, and it is at once recognized by its transparent shell, 
its color and glossy surface. In the latter respect, it is also 
similar to P. splendidulum St., but averages larger and its shape 
is different. Like a number of other Pisidia, this has been a stumb- 
ling-block for over ten years; but it seems constantly distinct, and 
is of wide distribution. 


Erratum. On p. 88 of the December number line 4 from bottom, 
correct Stllycash to Lilycash creek. 


LAND SHELLS FROM EAST SHORE OF CAYUGA LAKE. 
BY SILAS C. WHEAT. 


The following list of land shells were found by the writer in July 
and August, 1905, on the east shore of Cayuga Lake, between Ithaca 
and Portland Point, N. Y., and between the lake and the top of the 
cliffs : 

Omphalina fuliginosa Griffith. Abundant, woods. 

Omphalina inornate Say. Common, woods. 

Vitrea ferrea Morse. Rare, one found. 


THE NAUTILUS. 101 


Zonito'des nitida Muller. Abundant in low, wet fields. 

Zonitoides arborea Say. Common. 

Euconulus fulous Muller. Rare, found four. 

Gastrodonta ligera Say. Abundant, woods. 

Gastrodonta multidentata Binney. Rare. 

Pyramidula alternata Say. Abundant everywhere. One speci- 
men is turreted, having a sharp angle at the periphery, and the 
suture placed far below the angle. 

Pyramidula striatella Anthony. Rare. 

Pyramidula perspectiva Say. Rare, west side of lake. 

Helicodiscus lineatus Say. Rare. 

Polygyra tridentata Say. Common. 

Polygyra sayi Binney. Rare, 8 on 1 sq. yd. No others found. 

Polygyra albolabris Say. Abundant. 

Polygyra albolabris dentata Walker. Rare. 

Polygyra exoleta Binney. Rare. 

Polygyra palliata Say. Common. 

Polygyra thyroides Say. Common. 

Polygyra hirsuta Say. Rare. 

Polygyra monodon Racket. Rare. 

Polygyra monodon fraterna Say. Common. 

Vallonia pulchella Miller. Common. 

Circinaria concava Say. Rare. 

Pupoides marginata Say. Rare. 

Vertigo ovata Say. Rare. 

Vertigo ventricosa Say. Rare. 

Cochlicopa lubrica Miller. Abundant. 

Bifidaria corticaria Say. Rare. 

Bifidaria contracta Say. Common. 

Bifidaria armifera Say. Rare. 

Bifidaria pentodon Say, Rare. 

Strobilops labyrinthica Say. Rare. 

Succinea obliqua Say. Abundant. 

Succinea obliqua tottentana Lea. Rare. 

Succinea retusa Lea. Common. 

Succinea avara Say. Common. 


102 THE NAUTILUS. 


A NOTE UPON THE INSUFFICIENCY OF THE OPERCULUM AS A BASIS 
OF CLASSIFICATION IN ROUND-MOUTHED SHELLS. 


( Continued). 


BY L. P. GRATACAP. 


The naturalists who subsequently worked upon the classification 
of the mollusca were all sensibly influenced by these observations, 
and the operculum became a diagnostic note in the separation of 
genera. ‘Troschel (1847) and Pfeiffer (1852), thoroughly applied 
this method of discrimination, and augmented the number of genera. 
M. Petit de la Saussaye (1850) questioned the significance of the 
operculum as a real generic feature, and especially so far as the 
nature of the substance of the operculum had been used by Pfeiffer 
to distinguish genera. He says (Journal de Conchyliologie, Vol. I., 
1850) ‘*the nature more or less calcareous or corneous of the oper- 
cula arises rather from accidental circumstances, such as the habita- 
tion of these animals, their nourishment, the character of the ground 
upon which they live, the force of the sun, etc. As to the variable 
form of the volutions of the spire, observed in these accessory parts, 
it doubtless arises from the modifications, that the tissue secreting 
them presents ; modifications which do not seem adequate for the 
establishment of generic groups.” 

Benson reiterated the importance of the operculate features of the 
round-mouthed shells, and the system of classification incorporated 
in H. and A. Adams, ‘‘ Genera of Recent Mollusca” (1858) still 
further imbedded in the science the critical relations of the form 
and substance of the operculum to the natural limitations of the 
genera. 

In the latest important systematic treatise, Tryon’s Structural and 
Systematic Conchology, the operculum is perhaps less exhaustively 
used for descriptive purposes, but the author remarks that the oper- 
culum “‘ presents many beautiful modifications of structure, character- 
istic of the smaller groups, which are often peculiar to limited 
regions as in the Helicide.”’ 

In an examination of this group of shells in the general collection 
of the American Museum of Natural History and representing the 
Jay, Haines, and Constable cabinets, the somewhat exaggerated im- 
portance of the separative features of their opercula seemed apparent. 


THE NAUTILUS. 103 


It is quite evident that the opercula vary in substance and form ; 
that these variations are related to groups and genera; that in some 
instances (Opzsthoporus, Stoastoma) they present in one family a 
unique and generally well-maintained uniformity of structure. But 
their determinative character has been overestimated. The promi- 
nent characters of the opercula are repeated in diverse sections of 
the entire group, and the elements of their composition are more 
nearly significant of habitat than they are of systematic differences 
in the shells themselves. 

It is noteworthy in this connection to recall the demonstration 
made by Blanford (Annals & Mag. Nat. Hist., 1869), that the oper- 
cula of Georissa (Blanford’s genus) and Hydrocena Parreyss are 
almost identical, whereas the former shell is entirely terrestrial, and 
the latter marine. 

(A note of importunity to traveling or exploring naturalists may 
be appropriately inserted here. The character of the environment 
of species or genera of land shells is generally not closely enough 
observed. The moisture, temperature, mineral nature of the ground, 
seasonal features, and frequency and amount of sunlight, the vege- 
tation, are all influential factors in the physiological life of shells. 
They do, in land shells especially, have a clearly marked relation to 
the coloring, thickness and operculum of the shells, and they are not 
as particularly dwelt upon by collectors as they might be, both for 
the purpose of elucidating the effect of environment and the some- 
times misleading rules of systematists. ) 

Poey has called attention (Memorias sobre la Historia Natural de 
la Isla de Cuba) to a striking illustration of local influence in the 
sierras of the Isle of Pines. The Sierras de Casas and de Caballos 
are respectively a short distance to the west and east of Nueva- 
Gerona ; in the latter region the shells display regular spires, and 
the crustaceans are destitute of spinose surface, as 7rochatella stellata, 
Pineria beathiana, Cyclostoma pupoides, among the shells; Oniscus 
sp.? among the crustaceans. In the former area the Trochatella is 
represented by a denticulate, roughened, and loosely coiled shell 
(constellata); the Pineria resembles a screw (terebra); the Cyclostoma 
separates its last volution (moreletianum), and the Oniscus presents 
spiny asperities, preserving otherwise a very similar appearance to 
the de Casas species. 

The geological formations are identical, and Poey has suggested 


104 THE NAUTILUS. 


the differing intensity of the sun’s rays as a partial explanation of 
these surprising differences. 

This same author has protested against any sweeping conclusions 
as to the importance in the operculate shells of the operculum, in es- 
tablishing genera, and agrees with Petit de la Saussaye in consider- 
ing this feature of quite subordinate value, remarking, ‘‘ porque varia 
el operculo de los Cyclostomas en los grupos mas aproximados por 
el caracal y Jas costumbres del animal. No suce de asi en los tur- 
bineos, entre los cuales se nota que Jos que viven apegados a los 
arrecifes tienen el operculo corneo, y los que se apartan a mayor 
profundidad lo tienen calcareo: de aqui un excelente caracter para 
diferenciar las Litorinas de los verdaderos turbos y trocas.”’ 

Poey has also pointed out the confusion that results from the 
adoption by different authors of varying or diverse morphological 
characters for the classification of this group. 

A Cyclostoma becomes a Chondropoma because of a corneous 
operculum, or the same shell a Megalostoma by its thickened peris- 
tome, a character participated in by the Cyclophorus of Montfort, 
and the Tropidophora of Troschel. 

It is perhaps interesting to recall that Poey in a protest against 
classification based upon the shelly parts of these mollusca, has 
called attention to the method of progression of the Cyclostomas, 
their divided pedal muscle allowing the movement forward of one- 
half of the foot alternately with the other. It is not at all likely 
that this feature would ever be useful in separating the round- 
mouthed shells, but Poey has made of this observation an opportunity 
to emphasize the preponderant significance of the physiology of mol- 
luses over the form, ete., of their shells for purposes of classification. 
Cyclophorus has not a divided foot. Pfieffer, in his Monographia 
Pneumonopomorum Viventium, analyzes the Cyclostomacea as com- 
posed of three series, in each of which the form of the operculum is 
regarded as the separative character. The entire systematic table 
is as follows, so far as the opercula are here discussed. 


First SERIES. 


Operculum circular, frequently concave exteriorly, formed of many slowly- 
increasing whorls. Nucleus central, 


I, Operculum shelly (testaceous). 


Genera, Cyclotus, Alyceus, Diplommatina, 
Cyclotus, Operculum orbicular, shelly, arctispiral, externally rather con- 


THE NAUTILUS. 105 


cave, with the margin of the whorl thickened, or raised in an incurved lamina, 
nucleus subcentral, 
Alyceus, Operculum circular, subtestaceous, obsoletely multispiral. 
Diplommatina, Operculum subtestaceous, thin, with few whorls, outer edge 
with thin lamella, 


II, Operculum cartilaginous ? 


Genus, Pterocyclos. Operculum subcartilaginous, multispiral, interiorly 
concave. 
Ili. Operculum corneous, 


Genera, Craspedopoma, Aulopoma, Cyclophorus, Leptopoma, Megalomastoma, 
Cataulus, Pupinella, Pupina, Registoma, Callia. 

Craspedopoma, Operculum horny, solid, closely whorled. Nucleus central, 
external lamina plane, internal furnished in its last whorl with a circular 
prominence, centre profoundly concave. 

Aulopoma. Operculum horny, arctispiral, planorbal composed of two laminz, 
with an intermediate channel, with the last whorl furnished interiorly with a 
circular groove. (The outer edge larger than the aperture and reflexed over 
the peristome of the shell.— Adams.) 

Cyclophorus, Operculum horny, thin, arctispiral, externally more or less 
concave, 

Leptopoma, Operculum membranous, arctispiral, flat. 

Megalomastoma, Operculum subcircular, thin, horny, arctispiral, planular, 

Cataulus. Operculum orbicular, plane, corneous, arctispiral. 

Pupinella, Operculum horny, arctispiral, 

Pupina, Operculum thin, membranous, arctispiral, subplanum, 

Registoma. Operculum circular, thin, horny, arctispiral. 

Callia. Operculum thin, membranous, arctispiral. 

(To be continued. ) 


NOTES. 


HELIX HORTENSIS ON MaGpaALen Is_tanp.—In 1901 the Car- 
negie Museum of Pittsburg sent an expedition to the Magdalen 
Islands and Labrador to collect birds and eggs, and on June 23d, 
while at Grand Entry, Magdalen Island, one of the party collected 
a lot of Helix hortensis Miull., which show a remarkable tendency 
towards a single type of banding. There are about 330 shells in the 
lot, counting young and old, and all are the form with yellow ground. 
The following table, based on matured shells only, gives the number 
of each form : 

186—123405. 

48—(12)345. 


106 THE NAUTILUS. 


(== 17045. 
2200300. No. 3 very faint, translucent. 
8—00000. 


In a large proportion of the 186, 12345, bands 1 and 2 are very 
close together, but separated by a distinct but very narrow light line. 
In many of the (12)345 the union of 1 and 2 is indicated by a 
lighter space in the center of the band. It will be interesting to get 
further collections from this locality and see if the proportion of 
(12)345 shells increases, as this lot seems to indicate. 

The shells are rather thin and very uniform in size, the average 
being about 18 X 15X14 mm. The largest shell measures 
21 X 18 X 164 mm., and in this shell bands 1 2 and 3 are unusually 
wide. The smallest shell measures 165 X 14 X 12 mm. 

Since my note in THE Navriuvs, xiv, p. 72, I have received 8 
additional H. hortensis from near the headwaters of Robinson’s River, 
Newfoundland, as follows: Four (12345), one 1(234)5, three 00000. 
—GeEo. H. Crapp. 


PUBLICATIONS RECEIVED. 


MoLirsca OF THE SOUTHWESTERN STATES. II. By H. A. 
Pilsbry and J. H. Ferriss. Proc. Acad. Nat. Science, Philadelphia, 
1906, pp. 123-175. 

This important paper completes the review of the southwestern 
mollusca collected by the authors in Texas, New Mexico and Ari- 
zona, with the exception of Omphalina and the Unionide. Although 
any attempt to a complete faunal monograph is expressly disclaimed, 
this paper and its predecessor (P. A. N. S. P., 1905, p. 211) will be 
found to contain practically all the reliable data extant upon the 
fauna of southeastern Arizona and western Texas. The molluscan 
fauna of this region, like the reptilian, shows that the transconti- 
nental zones of distribution as established by Merriam cannot be 
maintained in the Mediocolumbian region for these lower forms of 
life, but that ‘* these zones are secondary divisions of vertical life 
areas of which the molluscan faunas were evolved in large part 
independently.” 

While the range of practically all the Austroriparian species is 
limited on the west by the rise between the 96th and 98th meridians 
of longitude, marking the approximate limit of the Cretacious forma- 


THE NAUTILUS. 107 


tion and the Sonoran area in Texas, there is along its border an ap- 
parent, rather than a real, intermingling of the fauna, owing to the 
fact that the eastern species follow up along the river valleys, while 
at the same time ‘‘ the fauna on the bluffs or away from the streams 
is frankly Sonoran.” The scope of the present paper is, in the 
main, restricted to the species of the Sonoran region, only such of 
the Austroriparian species are mentioned as were actually collected 
by the authors. 

The list of the forms considered characteristic of the Sonoran 
region in Texas includes twenty-one genera and thirty species. Of 
the former, nine are not known to occur in the Austroriparian or 
humid region of Texas. And of the latter, nine species and varieties 
are described as new. ‘The larger and more important part of the 
paper is taken up with a monographic revision of the Texan Bult- 
muli, which have so long been a source of exasperation and despair 
to the American collector. It appears that the typical forms of PB. 
alternatus and schiedeanus do not, so far as known, occur in the 
United States. The Texan series is restricted to 5. dealbatus and 
B. alternatus mariz. The specific distinction of dealbatus and 
alternatus is clearly established by the details of the genitalia. The 
typical form of dealbatus ranges from Alabama and Kentucky west to 
Kansas. West of the Mississippi from southwestern Missouri 
through Arkansas and the Indian Territory to Texas a number of 
well characterized local races have been differentiated, of which six 
are recognized and fully described and figured. B. alternatus mariz 
ranges through a wide territory along the Rio Grande from the Gulf 
as far west as the Pecos river. Its exact western range has not been 
determined. While there are some general differences between the 
eastern (typical) and western forms, the intergradation is so com- 
plete that the authors do not deem it advisable to attempt to separate 
them into the distinct races. 

Another important part of the paper is a revision of the genus 
Helicodiscus, of which four species and one variety are recognized. 
It is something of a shock, like that of losing an old friend, to learn 
that lineatus of Say must be given up, but fortunately it is replaced 
by another name, parallelus, of the same author. 

Other corrections in nomenclature to be noted are, that Helix sayt 
of Binney was preoccupied by Wood for an uncertain species of 
Polygyra, but probably auriformis; and our well-known eastern 


108 THE NAUTILUS. 


species will be known as P. sayana Pils., hereafter, and that Pyra- 
midula striatella Anthony for like reason must give way to P. eronk- 
hitet anthonyi Pils. 

Among the large number of new forms of land species described 
the most remarkable is Bifidaria tuba, the type of a new subgenus 
Chenaxis, characterized by its “large hollow axis, open below and 
about one-third the total diameter of the shell,’ found in the drift of 
the San Pedro river, Cochise county, Arizona. 

Radiodiscus millecostatus from the Huachuca Mountains, Arizona 
and Mexico, a minute Endodontid, is likewise both a new species 
and the type of a new genus. 

The fresh-water forms of the region are also fully discussed, and 
afford several novelties in Planorbis, Valvata, Amnicola and Palude- 
strina, all minute, and some of them the smallest species yet dis- 
covered. The several varieties of Lymnea bulimoides,—sonomaensis 
Hemp., techella Hald., and cockerelli (new)—are fully differentiated 
and figured, but unfortunately the typical form is neither figured nor 
discussed comparatively. 

In Segmentina, attention is called to the difference in the character 
of the apertural lamelle in the North American forms included in 
s. g. Planorbula Hald., and in the Antillian and Mexican group rep- 
resented in our fauna by S. obstructa (Morel.). In S. armigera and 
wheatleyi the lamelle, though differing in development, are “ funda- 
mentally identical.”” The Section Haldemanina recently established 
by Dali (Alaska, xiii, 97, 1905) for the latter species would therefore 
seem to be a synonym of Planorbula Hald. 

The most important item in this portion of the paper is the dis- 
covery of a species of Cochliopa (C. riograndens/s) in the drift of the 
Rio San Felipe, Val Verde County, Texas. The occurrence of C. 
rowelli Tryon, a Central American species, in California has always 
been doubted. The present discovery confirms the genus as a mem- 
ber of our fauna. 

The authors intimate that their discussion of the southwestern 
mollusks will be concluded by a third paper. Its appearance will be 
eagerly looked for by all students of our North American fauna. 
But, unless their well-known skill in the field has deserted them, it 
is confidently expected that the expedition of 1906 to the Grand 
Canyon will yield results quite as important as did their former ones, 
and that the fauna of the southwest will in the near future be still 
further illuminated by their labors. Bryant WALKER. 


THE NAUTILUS XX. 


STENOTREMA AND PARAVITREA. 


fee NAUTILUS. 


Vou, XX. FEBRUARY, 1907. No. 10. 


NEW SPECIES OF STENOTREMA AND PARAVITREA FROM ALABAMA. 


BY GEORGE H. CLAPP. 


VITREA (PARAVITREA) ALDRICHIANA N. sp. PI. V, figs. 8, 9, 10, 11. 


Shell small, widely, perspectively umbilicate, flattened, slightly 
convex above and below, the periphery well rounded ; greenish- 
white almost transparent, highly polished with very faint growth 
lines and on the body -whorl a few impressed lines spaced irregularly. 
Whorls five, those of the spire rounded at the well-impressed suture; 
umbilicus contained about three times in the diameter of the shell 
and showing all of the volutions; peristome forming two-thirds of a 
circle ; lip simple. 

Slightly below the periphery, and in the last half of the body 
whorl are about four teeth which are longer, vertically, than wide, 
and, apparently, project at both the upper and lower ends; 2. e., 
they are double pointed. 

Greater diam. 2, lesser 1.9, alt. 1 mm. 

Type from the slope of the Cumberland Plateau in Jackson 
County, Ala., close to the state line, and about 2 miles S. E. of An- 
derson, Tenn. Collected by Herbert H. Smith, who found but four 
specimens of this excessively rare species, the others being from 
** Buck Creek Cove,” Franklin County, Tenn., ‘* Cove in Valley of 
Little Crow Creek,’’ and *‘ Bennett’s Cove, near State Line,’’ both 
Jackson County, Ala. 

These four localities are near together on the Cumberland Plateau, 
and along the Tenn.-Ala. boundary. 

It is interesting to note that Mr. Smith collected both V. muder- 


110 THE NAUTILUS. 


dentata and lamellidens in the same gereral locality, although he did 
not find the latter in Alabama. 

The species is so distinct from all others of the genus that it can 
not be compared with any of them. The fact of finding four speci- 
mens at different places and all of practically the same size, shows 
that it is not likely to be the young of a larger species. 

I take great pleasure in naming it after Hon. T. H. Aldrich so 
well-known by his work on the fossil mollusca of the South. 

Type in my collection; the other specimens in the collections of 
Bryant Walker, John B. Henderson, Jr., and T. H. Aldrich. 


POLYGYRA (STENOTREMA) BREVIPILA n. sp. PI. V, figs. 1, 2, 3, 4. 


Shell imperforate, globose, thin, light reddish-horn color ; densely 
hirsute with fine, short hairs. Whorls five, those of the spire convex 
with a well-impressed suture; the body-whorl very convex, equally 
rounded above and below, deeply impressed in the umbilical region, 
abruptly deflected at the aperture and contracted behind the lip. 
Aperture transverse, narrow, widening anteriorly; parietal tooth 
large, strong but narrow, erect, with the sides nearly at right angles 
to the whorl and projecting beyond the lip, with which it is not 
parallel, but diverges for three-fourths of its length, when it is abruptly 
bent inward and downward, terminating opposite the second notch 
in the lip, its distal or outer extremity connected with the end of the 
peristome by a ridge of callus, the axial end sweeping around and 
“« nocketing ’’ the basal end of the lip; outer lip reflected back against 
the body-whorl, but with its sharp edge free from the whorl its entire 
length; very much thickened along its inner edge which forms a 
raised margin around the wide notch, and a well-developed tooth or 
fold beyond it, after which the margin is incurved around the outer 
extremity of the parietal tooth. ulerum long. 

An average shell measures, diam. 84, alt. 6 mm. 

The largest seen measures 9 x 6, and the smallest 7? x 5? mm. 

Collected by Herbert H. Smith on Horseblock Mountain, Talla- 
dega Co., Ala., at an altitude of about 2,000 feet. On some of the 
U.S. Geological Survey sheets this mountain is called “ Talladega,” 
but “‘ Horseblock ”’ is the local name. 

‘«“The mountain sides, near the top, are littered, or rather piled 
with talus, big and little rocks; the shells are found almost invari- 
ably on the lower sides of these rocks, and generally they chose 


THE NAUTILUS. jb UL 


the biggest and heaviest; you turn over perhaps fifty to find one 
shell. They are obtained by sheer hard work.” H. H. 8S. 

This is one of the most striking species of the Stenotrema-hirsuta 
group, and differs from all others in having a continuous free lip; the 
lip-notch is also of an entirely different type, as it will be noticed by 
a reference to the figures that the notch is xot an indentation in the 
center of the lip, but the lip forms a curve from the columellar end 
to the highest part of the notch when it is suddenly deflected and 
bent forward. The parietal tooth differs in being more perpendicular 
to the body-whorl, not bent toward the lip, as in Stenotrema, where 
the tooth is very convex on its outer side and concave on the side 
next the lip, which it frequently overhangs. On looking into the 
aperture, through the notch, the whole of the long fulcrum can be 
plainly seen. 

The only species with which this is likely to be confused is P. 
altispira Pils., but the resemblance, due to the wide notch in each 
case, is only superficial ; for, as pointed out above, the notch is of a 
different type. The hairs are also much finer, closer and shorter, 
and the shape of the shell is entirely different. 

Type in my collection ; cotypes in the collections of the Academy 
of Natural Sciences, Phila., Bryant Walker, T. H. Aldrich and 
John B. Henderson, Jr. 


Reference to Figures. 
Figs. 1, 2, 3,4. Polygyra (Stenotrema) brevipila Clapp. 
Figs. 5, 6,7. Polygyra (Stenotrema) altispira Pils. Roan Mtn., 
N. C., specimen 9x 6 mm., size of type. 
Figs. 8, 9,10. Vitrea ( Paravitrea) aldrichiana Clapp. Type. 
Fig. 11. Apparent shape of teeth of V. aldrichiana, 


A NEW CARDIUM FROM PUGET SOUND. 
BY WILLIAM HEALEY DALL. 


Among the specimens of Cardium received from the Pacific coast 
during a series of years was occasionally a specimen with more num- 
erous ribs, smoother surface and small, compact shell, which was 
doubtfully referred to the young of CO. ealiforniense Deshayes, better 
known under Gould’s name of blandum. Recently in an endeavor 


ea, THE NAUTILUS. 


to identify one of these shells, sent in from Monterey by Mr. Berry, 
all the available specimens were brought together and carefully com- 
pared, leading to the conclusion that the shell is a distinct species. 


Cardium (Cerastoderma) fucanum n. sp. 

Shell small, plump, compact, solid for its size, covered with a 
smooth brown or gray periostracum usually more or less eroded ; form 
varying from nearly circular to slightly ovate, with rather prominent 
slightly prosocelous beaks, situated a little anterior to the middle of 
the shell; valves moderately convex, equal and nearly equilateral, 
sculptured with numerous (40 to 58) similar, small, low, flattish radial 
ribs separated by much narrower interspaces; these ribs are not 
nodulous nor keeled, they are sometimes slightly rippled by the in- 
cremental lines, and, as usual, are smaller, fainter and more crowded 
distally ; the interspaces are rounded; near the dorsal margins on 
each side of the beaks there is an ill-defined narrow space which is 
devoid of ribs; the average number of ribs is about 50; the inner 
margins of the valves are crenulated ; the hinge delicate and normal ; 
the inner surface of the valves white, polished; the outer surface 
usually shows three or four concentric sulci due to resting-stages. 
Length 38, height 33, diameter 18 mm., of a fully adult specimen ; 
a shorter variety measures 25.5, 24.5 and 16 mm. for the same di- 
mensions. 

From Bering Sea (in 70 fathoms, temperature 39.0°) south to 
Monterey Bay, California (in 20 fathoms); the depths varying from 
20 to 70 fathoms and the temperatures from 39.0° to 52.3°. Col- 
lected by Kennerley, Swan, the U. S. F. Com. Str. Albatross, and 
Mr. S. 8S. Berry, of Stanford University. 

This species somewhat resembles C. hayesti Stimpson from the 
Arctic Sea but has more numerous and more uniform ribbing. It 
wants the angulation (in fresh specimens fringed with periostracum) 
which is characteristic of C. ciliatum Fabr. in the young stages, and 
has more, and more crowded, ribs, and a more solid shell. It is 
most nearly allied to C. ealiforniense but has a thicker and more 
ventricose shell, is less attenuated posteriorly and less oval in form, 
the ribs are more closely adjacent and more uniform in size than in 
californiense ; though the number is about the same the diminutive 
size of fucanum makes them appear much more numerous. Most of 
the 14 specimens examined came from the Straits of Fuea. 


THE NAUTILUS. its 


A NOTE UPON THE INSUFFICIENCY OF THE OPERCULUM AS A BASIS 
OF CLASSIFICATION IN ROUND-MOUTHED SHELLS. 


( Concluded). 
BY L. P. GRATACAP. 


Seconp SERIEzs. 
Operculum subcircular, few whorls, rather quickly widening, nucleus sub- 
central. 
I. Operculum horny. 


Genera, Jamaicia, Licina, Choanopoma. 

Jamaicia. Operculum horny, exteriorly convex, with few rugose whorls, 
obliquely striated, sublammellose. 

Licina. Operculum not described, 

Choanopoma. Operculum horny, subcircular, whorls rather quickly widen- 
ing, with free external margin, acute, frequently raised into lofty lamella, 
nucleus subeccentric. 


II. Operculum cartilaginous. 


Genus, Adamsiella. 
Adamsiella. Operculum circular, thin, subcartilaginous, with few whorls, 
gradually increasing, with somewhat free edges, nucleus subcentral. 


TuirD SERIES. 


Operculum oval or angulated, few whorls, more or less quickly increasing, 
nucleus eccentric. 


I. Operculum shelly. 


Genera, Lithidion, Otopoma, Cyclostomus, Tudora, Leonia, 

Lithidion. Operculum subcircular, shelly, whorls rather rapidly increasing, 
with a subcentral keel, strong, convex, furnished with simple margins. 

Otopoma. Operculum horny, solid, few whorls, convex center, simple 
margin, 

Cyctostomus. Operculum suboval, horny, plane, four to five whorls, gradu- 
ally increasing, simple margin, nucleus subeccentric. 

Tudora. Operculum oval, horny, plane, two or three whorls rapidly increas- 
ing, obliquely arcuate, striate, or sulcate, nucleus quite eccentric, with the left 
and lower margin closely fitting to the peristomes. 

Leonia. Operculum oval, shelly, externally perconvex, unispiral, nucleus 
placed near the columellar margin. 


II. Operculum cartilaginous, covered externally with a thin shelly layer. 


Cistula. Operculum oyal, thin, cartilaginous, externally furnished with a 
thin horny layer, with a few whorls gradually increasing, margin generally 
free, nucleus eccentric, 


114 THE NAUTILUS. 


III. Operculum entirely cartilaginous. 
Chondropoma, Operculum oval, subcartilaginous, plane, few whorls, rapidly 
increasing, nucleus generally quite eccentric. 
IV. Operculum double interiorly concamerated. 


Pomatias. Operculum cartilaginous, few-whorled, made up of two lamine, 
interiorly concamerated, 


V. Operculum corneous, 


Genera, Realia, Omphalotropis, Bourciera. 

Realia. Operculum thin, horny, few-whorled. 

Omphalotropis. Operculum thin, horny, few-whorled. 

Bourciera. Operculum oval, somewhat solid, horny, with few rapidly in- 
creasing whorls. 


Later authors have extended this list of genera, but Pfeiffer’s 
synopsis practically embraces the important and distinguishing gen- 
era. The force assigned to the operculum as separative of the genera 
naturally appears exaggerated, when their characters are thus iso- 
lated, but in view of the purpose of this paper to empbasize their 
secondary, or in cases, entirely negligible weight, this isolation serves 
the more explicit object of fixing attention solely upon the operculate 
features. 

To begin with, in the genus Cyclotus, there exist differences in 
the opercula of many species almost as great as that between the 
opercula of recognized genera. In the species C. corrugatum, Swhb. 
the whorls of the laminae in the operculum are margined by erect 
incurved slightly striate free fillets, the whole operculum presenting 
the appearance of a watch-spring; whereas in typical examples of the 
operculum of Cyclotus, the laminae are flat with edges strictly in 
contact or slightly overlapping, the latter feature becoming extreme 
in seminudum. There is here no essentially different principle of 
construction involved but the formal contrast in appearance might as 
safely be invoked to make another genus in the case of C. corru- 
gatum (as it has been) so far as opercula offer signs of generic dis- 
tinction. ‘Troschel and H. and A. Adams have indeed placed this 
shell, along with asperulus, cingulatus, crassus, etc., in all twenty- 
five species, in the subgenus Aperostoma. 

The shelly substance of the operculum of Cyclotus is however a 
quite constant feature. The shelly opercula are found in such small 
shells as fodiens, hunanus, parvulus, minimus, where it might be ex- 
pected that the calcareous secretions would be less complete. 


THE NAUTILUS. 115 


The opercula of the small shells Alyeaeus and Diplommatina are not 
often found in shells in collections. Where I could examine them 
under a one-inch objective they certainly offer no determinative dif- 
ferences from the opercula of Cyelophorus, and like the latter are 
horny (corneous). Compare for instance the opercula of Alycaeus 
rathouisiana, Hende, Cyclophorus parapsis, Benson. 

The genus Pterocyclos is certainly closely allied to genera Opis- 
thoporus, Spiraculum, Rhiostoma, but the opercula of these four 
genera exhibit two contrasted forms. Taking Pterocyclos angulif- 
erus Soul. as an example of one form, the operculum forms a calcare- 
ous button, concave upon the outer side, interiorly filmed by a horny 
scale covering its entire width, grooved at the sides, and showing on 
its exposed surface closely wound narrow whorls, throughout ob- 
liquely striate. This configuration and structure is quite as naturally 
and truly referable to the opercula of some species of Cyclotus as C. 
auriculata, Kob., ete. 

This form of operculum is found in some species of Opisthoporus 
(vide dbierliatus, Mouss., birostra, Pfr.) and the distinction made by 
H. and A. Adams between the opercula of Opisthoporus and Pterocy- 
elas is certainly misleading if universally applied. Another more 
common type of operculum, seen in Spiraculum, Rhiostoma, some 
species of Opisthoporus and Pterocyclos is a spiral lamina, concave 
interiorly, more or less deep with the free edges of the laminae erect 
or explanate and horizontal, arising screw-wise steeply around a 
solid nucleus (2hiostoma) or more spreading with corneous intercal- 
ation (Spzraculum). The morphology of the shells themselves sep- 
arates these genera, though it is probable the distinctions should form 
subgenera, but the opercula present two forms, which while partially 
restricted are surely not enough so to offer any basis for strict 
classification. 

But the confusion, so far as opercula are considered, does not end 
here. ‘The opercula of the second type of Pterocyclos, Opisthoporus, 
Spiraculum, Rhiostoma, in substance and structure, is practically re- 
peated in those of Choanopoma. Both groups show the exsert, erect, 
or spreading laminae, the spiral curvature, the union of calcareous 
and corneous texture, though the inner surface of the operculum in 
Choanopoma is usually flat, and in some instances as C. pulechrum, 
Gray, the coarse expansive character of the whorls contrasts with 
the analogous feature in Pterocyclas, etc. 


116 THE NAUTILUS. 


The operculum of Leptopoma is essentially that of many species of 
Cyclophorus (compare Leptopoma sericatum, Pfr. with C. fulguratus, 
Pfr. and C. borneense, Mtf.). It is membranous, corneous, arcti- 
spiral suppressedly striate, on the laminae, concave, with a polished 
inner surface. The fimbriated shaggy exfoliated surfaces of many 
opercula of the larger Cyclophorus (see ©. arthritis, C. nilagirianus, 
C. oculus-capri, C. tuba, C. validus, etc.) are age characters, and 
seem also to have some relation to the moist habitats of the animals. 
This type of operculum is repeated in Megalomastoma, though the 
shell in the latter case is pronouncedly and divergently different (see 
M. ventricosum, M. verruculosum.) 

Cataulus is in its operculate character identical with the fore- 
going. Although from the size of the apertures the opercula are 
small, they are in construction, substance, expression, and micro- 
scopic features, inseparable from the opercula of Cyclophorus, Mega- 
lomastoma, and Leptopoma. ‘The flatness usually observable in the 
opercula of the last two genera is shown in Cyclophorus in small 
shells, the concavity of the opercula of the latter genus being the 
result of the natural curvature produced by the protruding fibres of 
the larger foot in larger species. 

The operculum of Pupina is unmistakably indicated in structure, 
nature, and physical appearance with all the foregoing, its tenuity alone 
and flatness offering only the most evanescent and unreal discrimina- 
tion from the other genera. Pupinella, Registoma, Callia, are quite 
inseparable in their operculate character. Aulopoma is a shell very 
near in external characters to Pterocyclos, Opisthoporus, Spiraculum, 
Rhiostoma, omitting the lip expansion and spiracle, but the oper- 
eulum is sharply contrasted. The operculum in Aulopomais corneous, 
consisting of a flat spiral made up of tubular whorls coarsely striate 
and embracing, cap-like, the margins of tbe shell aperture. If the 
distinction of this genus is based upon the operculum it rather forcibly 
separates a sheil from its natural generic position. 

In structure, at least, the sub-orbicular operculum of Otopoma 
naticoides Rec., with its cycloidal development with the tangential 
strie leaving the whorls and extending outward, but forming filexu- 
ous lines on the limits of the last whorl, is repeated in the authentic 
opercula of Cyclophorus metabletus Crosse & Fischer. 

The instances of exact repetition in the opercula of Cyclotus and 
Cyclophorus ase numerous. The operculum of Cyclotus translucidus 


THE NAUTILUS. 117 


Sowb. is certainly reproduced in those of Cyclostoma xanthocheilus, 
CO. barclayanus, OC. campanulatus. The flat thin spiral, almost equal 
with the slightly overlapping ascent outward to the last whorl, striate 
on its exterior edges, is closely repeated in each. 

In Adamsiella grayana Pfr., A. variabile Ad., there is a spiral oper- 
culum with exsert lamine, somewhat multifolded or lamellose on 
edges, but structurally distinctly like Choanopoma and Opisthoporus. 

The operculum of Zudora and Cistula with their rapidly increasing 
whoris, the last expansive and filling one-third of the aperture, nuc- 
leus subcentral, are practically identical. The thin substance of the 
operculum of Chondropoma gives it some essential differentiation, but 
in the theory of its form it is exactly like Tudora and Cistwla. The 
outer surface of the operculum of Tudora is frequently (T. shepardi- 
anus Ad., T. pupoides Morelet) fibrous-rayed, whereas in megacheilus 
its surface is smooth, or obsoletely striate which form is closely imi- 
tated by the operculum of Chondropoma. 

The following table exhibits the substance of the operculum in the 
genera of round-mouthed shells, as observed in the collection of the 
American Museum of Natural History, and as given by Pfeiffer. 
The two columns afford slight differences, but such differences might 
readily be referred to individual variations in the shells examined by 
two observers, using different groups of specimens. 


SUBSTANCE OF THE OPERCULUM. 


Observed in Collection, Pfeiffer. 

Testaceous to subtestaceous, Sub- Cyclotus. Testaceous, 
testaceous in C. crassus, Ad. C. 
triliratum Pfr., C. rugatus Guppy, 
C. suturale Swb. 

Corneous. 

Corneous, 

Testaceous to Sub-testaceous in P. Plerocyclos. 
rupestris Bens, 


Sub-testaceous. 
Sub-testaceous. 
Sub-cartilaginous, 


Alycxus. 
Diplommatina., 


Not seen, Craspedopoma. Corneous, 
Corneous. Aulopoma, Corneous. 
Corneous. Cyclophorus. Corneous, 
Corneous, Membranous. Leptopoma. Membranous. 
Corneous. Megalomastoma, Corneous. 
Corneous. Cataulus. Corneous, 
Corneous. Pupinella, Corneous. 
Corneous. Pupina. Membranous, 


118 THE NAUTILUS. 


Corneous. Registoma, Corneous. 
Callia, Membranous. 

Corneo-testaceous. Jamaicia. Corneous, 
Not seen. Ticina, it 
Testaceous to Corneo-testaceous. Choanopoma. Corneous. 

In C. majusculum Morelet the 

corneous layer is quite intimately 

and equally developed with the 

testaceous., 
Corneous. Adamsiella, Sub-cartilaginous. 

Lithidion., Corneous. 

Testaceous, Otopoma. Corneous. 
Testaceous, Cyclostomus, Corneous. 
Corneous layer quite thick in in- 

stances as C. bicarinatum Swh., 

C. filosum Swh., C. madagascar- 

tense Gray, C. rangelinum, C. 

xzanthocheilus. 
Testaceous to Testaceo-corneous, Tudora. Corneous. 
Testaceous, Leonia, Testaceous, 
Testaceous. Cistula, Cartilaginous, 
Corneo-cartilaginous, Chondropoma, Sub-cartilaginous. 
Not seen, Pomatias. Cartilaginous, 
Not seen. Realia, Corneous. 
Not seen, Omphalotropis, Corneous. 
Not seen. Bourciera, Corneous. 
Testaceous to Sub testaceous. Hybocystis . 
Testaceous. Cyclotopsis, 
Testaceous to Sub-testaceous, Cienopoma. 
Testaceous. Diplopoma. 


Collections of the Cyclostomacea are often sadly deficient in oper- 
cula, and this very interesting feature is- as frequently absent as 
present. It seems most probable that opercula have no exact generic 
value, and should not be regarded with the extreme importance as- 
signed to them by Pfeiffer, H. & A. Adams, and other authors. 

It is hoped that a more detailed and illustrated study of them will 
be made in the future. 


NOTES. 


Tue WINKLEY COLLECTION OF SHELLS.—‘ A most gratifying 
gift was received last June from the Rev. Henry W. Winkley, of 
Branford, Conn.; it consists of a large series, some 1600 species and 


THE NAUTILUS. 119 


varieties of land shells from all parts of the world, except New Eng- 
land. His New England collection Mr. Winkley retains for study, 
but he writes that he thinks in time it too ‘ will find its way to the 
Museum.’ The shells received are in excellent condition. Mr. 
Winkley, as a member of the class of 1881, recalls with pleasure his 
undergraduate work in the Museum, and gives the collection as his 
contribution toward the twenty-fifth anniversary celebration of the 
class. It is hoped that Mr. Winkley’s gift will prove an incentive 
to other graduates to associate their college work with the interests 
of science and the Museum.”—( From the Annual Report of the Cura- 
tor, Museum of Comparative Zoology, 1905-1906.) 


Tue Mumrorp CoLiLecTION Or SHELLS.—Through a bequest of 
the late Mr. Henry Mumford, the Museum of the Brooklyn Institute 
of Arts and Sciences has secured an unusually fine collection of 
shells, comprising about 15,000 specimens, representing 2,400 species; 
this will be known as the Phebe L. Mumford Collection. It was 
originally brought together by Mr. Isaiah Greegor, for many years 
a resident of Jacksonville, Florida, who made a special effort to se- 
cure the best possible specimens. This makes the collection par- 
ticularly valuable for a museum, since the shells are in their natural 
condition, retaining the outer layer or *‘ epidermis,” which is usually 
removed to show the brilliant coloring beneath, a proceeding that 
makes the shell ‘‘look pretty,’ but utterly destroys its scientific 
value ; there are, however, series of shells cleaned and polished so 
that the student and the lover of the beautiful may alike find what 
they wish. 

Two years ago the Museum received a valuable gift of shells from 
Mr. Julius Brunn, so that the division of mollusks is now very well 
represented.—( The Museum News.) 


PUBLICATIONS RECEIVED. 


An ILLUSTRATED CATALOGUE OF THE MoLLusca oF MICHI- 
GAN: Part I, Terrestrial Pulmonata (Land Snails). By Bryant 
Walker (From Report of the Michigan State Board of Geological 
Survey, 1906). ‘This catalogue has been prepared to supply the 
need for a convenient manual of Michigan mollusks for the use of 
teachers and students of biology throughout the state.” It contains 


120 THE NAUTILUS. 


chapters on the history of Michigan conchology, the relations of the 
Michigan fauna, on collecting and preserving mollusks, on classi- 
fication, measurements and descriptive terms. While these subjects 
are concisely treated, yet Mr. Walker has condensed into his pages 
the practical results reached by the modern group of American 
workers in both field and laboratory, so far as applicable to the 
Michigan fauna. There are few collectors who will not profit by 
reading the ‘* Hints on collecting mollusca,” and ‘“‘ Arrangement of 
the collection.” The classification and nomenclature of the cata- 
logue are up to date. 

The list comprises 81 species, all described and illustrated by cuts 
in the text, most of them borrowed from Binney’s standard series of 
figures, though with a considerable number of original drawings. 
Full references are given to previous Michigan literature, as well as 
to the original descriptions, and to Mr. Binney’s Manual. Excellent 
keys to the species are given. 

It is no disparagement of other lists to say that the Michigan 
catalogue as here presented is the most thoroughly worked-up state 
catalogue we have had. Every species has been the subject of 
special investigation, as to its characters and identity, and its distri- 
bution in Michigan. The time and labor involved in working up a 
state fauna in this thorough manner will be appreciated only by those 
who have undertaken the rigid verification of every record in the 
fauna of an equal area. 

A summary of the work on distribution done up to this time is 
given in the tabular census, giving the distribution of all the species 
by counties. Records have been received from all but 16 of the 84 
counties in the state. It will be noted that the comparatively re- 
mote and inaccessible Upper Peninsula is well represented in the 
Census, and the Boreal character of its fauna is well shown by the 
absence of nearly all of the Polygyras, larger Zonitide, ete. 

Species interesting because of their rarity or on account of notable 
extensions of their known range, are Vitrea wheatleyi and rhoadst, 
Pallifera hemphilli, Suecinea retusa peoriensis (here for the first time 
figured), Vertigo morsei, Cochlicopa lubrica morseana, etc. Excel- 
lent and much-needed original figures of Strobilops labyrinthica, 
S. virgo and S. affinis are given. 

Mr. Walker is at work upon the fresh-water mollusks, to form the 
second part of the catalogue. We will all look with interest for his 
treatment of the aquatic pulmonates.—H. A. P. 


fee) NAUTILUS. 


VoL. XX. MARCH, 1907. No. ii. 


A NEW FOSSIL BUSYCON (FULGUR) FROM FLORIDA. 


BY T. H. ALDRICH. 


BUSYCON MONTFORTI n. sp. Plate VI. 


Shell large, solid. Whorls about seven; those of the spire with 
slight nodules, which on the body whorl develop progressively into 
small, medium, and then large spines, ten in number on the specimen 
figured ; these spines are flattened above, and partly so below, and 
differ from those of Busycon eliceans Montf., by being filled by the 
successive growth additions. Surface covered with raised lines, ex- 
cept on the middle of the body whorl. Aperture within still yellow- 
ish-brown. Canal contracted and twisted somewhat to the left. 
Inner lip with a strong callus carrying a fold at the angle with the 
canal; outer lip corrugated within. The specimen has the spire 
slightly broken, but it is probably pointed like Busycon eliceans. The 
canal is considerably shortened by breakage. 

Locality: Shoal River, Walton County, West Florida. 

Remarks: The geological horizon is in the Upper Oligocene of 
Dall. This species is especially interesting because it shows that 
Busycon eliceans Montf. is a distinct form with an Oligocene (?) ances- 
tor. There are a number of minor differences between the two 
species, but when placed side by side they show without question 
their intimate relations. The descent of the group will need to be 
cousiderably modified to conform to the new discovery. 


122 THE NAUTILUS. 


ANEW SPECIES OF SEGMENTINA. 


BY BRYANT WALKER, 


SEGMENTINA CRASSILABRIS n. sp., Pl. VII, figs. 4—6. 
Segmentina wheatleyi, Witter, J. of Conch., I, 3888 (1878). 


“ “ ? Walker, Naut. VI, 137 (1893). 
«“ «Walker, Rev. Mich. Moll., 18 (1895). 


Shell dextral, broadly umbilicate, planorboid, smooth, slightly 
wrinkled by subobsolete growth lines and microscopic transverse 
lines and undulations; light horn colored; whorls 44, regularly in- 
creasing, those of the apex flattened and concavely depressed, ante- 
penult and body whorl rounded above, the latter deflected and slightly 
expanded towards the aperture, and sharply contracted at the lip, 
forming an obtuse crest just behind the edge of the lip, obtusely 
angled below, around the deep, subfunicular umbilicus ; aperture 
oblique, subtriangular, greatly contracted by a heavy callous 
ridge just within the lip, the face of which is concave, the edge of 
the lip being sharp and black ; the extremities of the labial ridge are 
connected by a slight callus across the parietal wail; apertural 
lamella six ; two parietal and four (palatal) on the outer wall. 
The principal parietal lamella is a thin, broad, sigmoid blade rising 
from the lower third of the parietal wall, and extending upward and 
backward nearly to the suture, it is widest in the center, the ante- 
rior extremity is subtruncate and rather abruptly bent outwards, 
posteriorly it slopes gradually to its termination; below this and 
just behind the curve in the anterior portion and about halfway be- 
tween it and the base is a short, sharp denticle projecting obliquely 
forward and downward; the lower palatal fold extends transversely 
nearly across the entire base of the whorl and is a low, strong fold, 
the upper surface of which is parallel with the base, the inner ex- 
tremity is opposite the lower parietal lamella and rises abruptly at 
right angles to the base, the outer extremity is rounded and bent for- 
wards, sloping down to its termination, viewed externally the base of 
this fold roughly resembles a figure-7; immediately above this, 
about halfway between it and the lower extremity of the third pala- 
tal fold, and about at the periphery of the whorl is a short, trans- 


THE NAUTILUS. 123 


versely diagonal lamella, the anterior end of which is lower than the 
posterior, which is slightly bent upwards ; above the anterior extrem- 
ity of this fold is the third palatal fold, a short, slightly oblique 
lamella, the posterior end of which is slightly curved backwards and 
slopes more gradually to its termination than the anterior extremity; 
above this and at its posterior extremity is a short, transverse denti- 
cle, which lies immediately below the superior arch of the whorl. 

Alt. 3, greater diam. 74, lesser diam. 6mm. Types (No. 2998 
coll. Walker) from Hamtramck, Wayne Co., Mich. Also from 
Kent and Monroe counties, Mich.; Muscatine, Ia.; Knox county, 
Vincennes and Brownston, Ind. 

This very distinct species was first seen in 1878, when specimens 
from Muscatine, Ia., were received from Prof. F. M. Witter, labelled 
S. wheatleyi Lea, on the authority of the late Dr. Jas. Lewis. Sub- 
sequently, when the species were detected in Michigan, in reliance 
on this identification it was so listed in the two papers cited above. 
The recent receipt of the true S. wheatleyi from Princeton and Boli- 
gee, Alabama, collected by H. H. Smith and A. A. Hinkley, has 
’ shown that the reference of this form to that species was erroneous, 

Although occupying an intermediate position between the well- 
known S. armigera and S. wheatleyi, crassilabris, is quite distinct from 
either. In external appearance, compared with armigera (Fig. 1-3), 
itis smaller and more compactly coiled and higher in proportion to its 
width, the umbilicus is smaller and deeper, and the angulation of 
base of the whorl around the umbilicus more pronounced. In armi- 
gera, the whorls are more regularly rounded and the aperture lacks 
the crest behind the lip, and is not at all contracted, the thickening 
within the lip is very slight and does not sensibly diminish its calibre. 
In wheatleyi (Fig. 7-9) the distinctive features of crassilabris are 
all intensified. The apical whorls are more depressed, the body- 
whorl is obtusely angulated above and sharply carinated around the 
umbilicus, which is funicular, the inner whorls scarcely, if at all, ob- 
truding beyond the curve of the body-whorl ; the aperture is more 
oblique and more contracted in front of the crest, which is more 
prominent. The inner ridge of callus is less developed and lacks 
the regular concave slope to the edge of lip characteristic of ecrassi- 
labris. 

As recently stated by Pilsbry and Ferriss (Proc. A. N.S. P., 
1906, p. 166) in regard to S. armigera and wheatleyi, the arrange- 


124 THE NAUTILUS. 


ment of the apertural lamellz in these three species is fundamentally 
the same. Their number, position and character are the same in 
all. The differences, which are, however, specifically characteristic, 
are only in the degree of development. 

In armigera, the prircipal parietal lamella is much shorter, less 
oblique and its anterior end is less curved and truncated than that of 
crasstlabris, the palatal folds are all less developed, and the spaces 
between them consequently greater ; the upper extremity of the basal 
fold is less deflected and scarcely noticable externally. In both 
these species, there is a marked tendency to develop an additional 
fold in connection with the central palatal giving it a V-shape, which 
is quite noticeable from the exterior. 

In wheatleyi, the position of the principal parietal lamella is more 
like that of armigera than of crassilabris, being, taken as a whole, 
less oblique and the anterior end is less bent forward than in the 
latter species, but the posterior extremity is more prolonged than in 
armigera, and is continued for a short distance parallel with the 
suture ; the basal palatal is much wider than in either of the other 
species and is abruptly contracted at its base, while the upper ex- ’ 
tremity is deflected as in crassilabris ; the second palatal fold is re- 
markably developed, rising abruptly near the base of the whorl; it 
runs back for a short distance parallel with the base, and curves up- 
ward, terminating just below the superior carina, having much the 
shape of a boomerang. The third palatal is only slightly oblique, 
the lower end is bent backwards and close to the upper extremity is 
a small knob, not sufficiently differentiated from it to be called a dis- 
tinct denticle, but evidently similar to the accessory fold noticed in 
the other species ; the upper extremities of this fold and of the basal 
palatal are about on the same level. The fourth palatal is situated 
directly under the superior carina and is a short, straight, transverse, 
club-shaped fold, the posterior extremity being the thickest. 


EXPLANATION OF PLATE VII. 


Figs, 1-3. S. armigera Say, Mohawk, N, Y. 
Figs, 4-6, SS. crassilabris (Type), Hamtramck, Mich, 
Figs, 7-9. S. wheatleyi Lea, Princeton, Ala. 


THE NAUTILUS. 125 


DESCRIPTIONS OF NEW SPECIES OF LYMNZA. 


BY FRANK C, BAKER. 


LYMNZA DALLI 0. sp. 

Lymnzxa parva Baker, Nautitus, XIX, p. 52,1905. (Not of 
Lea.) 

Lymneza dalli Baker, Bull. Ils. State Lab. N. H., VII, p. 104, 
1906. 

Shell very small, thin, ovate-conic, turreted; color greenish or 
whitish-horn ; surface dull to shining, marked by heavy, crowded 
growth-lines, which are elevated into distinct ribs in some specimens ; 
protoconch very small, flatly rounded, light-horn colored; whorls 44 
to 5, rounded and distinctly shouldered; spire generally obtusely 
conic, turreted, a trifle longer than the aperture ; sutures very deeply 
impressed ; aperture elongate, ovate or elliptical, the peristome con- 
tinuous in many specimens; outer lip acute; inner lip forming a 
rather flat extension over the umbilical region, leaving a rather pro- 
nounced chink ; the lower part of the aperture is somewhat effuse ; the 
columellar extension of the inner lip is appressed so as to form a 
pseudo-plait; the inner edge of the outer lip frequently forms a rib- 
like ridge in very old specimens. 

Length 3.25, breadth 2, aperture length 1.5, breadth 1 mm. Lake 
James, Ind. 

Length 4, breadth 2, aperture length 2, breadth 1mm. Lake 
James, Ind, 

Length 3, breadth 2, aperture length 1.25, breadth, .9 mm. Lake 
James, Ind. 

Length 4.25, breadth 2, aperture length 1.75, breadth 1 mm. 
Lake James, Ind. 

Length 4.5, breadth 2.5, aperture length 2, breadth 1.1 mm, 
(scalariform). 

Length 3.75, breadth 2.75, aperture length 2, breadth 1.25 mm. 
Rockford. 

Length 4, breadth 2.1, aperture length 2, breadth 1.1mm. Rock- 
ford. 

Types : Chicago Academy of Sciences ; cotypes, Academy of Nat- 
ural Sciences, Philadelphia ; Smithsonian Institution, Washington. 

Type Locality: Lake James, Steuben Co., Indiana. 


126 THE NAUTILUS. 


Range: Indiana to Montana, south to New Mexico and Texas. 

Station: Same as humilis, curta, and the other small Lymnezas. 

Remarks: This little species, the smallest of our American Lym- 
nzas, is related to parva, appearing at first sight to be a small exam- 
ple of that species. It differs from parva in its smaller size, rounder 
and more turreted whorls, more slender outline, longer and narrower 
aperture and smaller and less conspicuous umbilicus. The whorls 
are inclined to be shouldered also, a feature not emphasized in parva. 
There is some variation in the length of the spire, many specimens 
having a rather long spire, while in others the spire is much 
depressed, and the whorls are humped, this last being in slightly 
abnormal forms. 

In Tue NavtIiLuvs (xx, p. 52), this species was described as the 
parva of Lea, but a careful study of Lea’s types in the Smithsonian 
Institution makes it evident that it is not that species, but a new one, 
hitherto unnoticed. Young specimens of parva are similar to dalli, 
but may be distinguished by the lesser number of whorls in shells of 
the same size and in the different shape of the whorls. The two 
small forms, parva and dalli, are related, but are easily separated 
when attention is given to the details of form and size. 

This peculiar little species is named in honor of Dr. William H. 
Dall, Curator of the Division of Mollusks of the Smithsonian Insti- 
tution. 


LYMN#ZA LEAI D. sp. 


Shell large, ovate, thin; color, yellowish-horn; surface with fine 
lines of growth crossed by equally fine spiral lines; whorls 6, flatly 
rounded, very rapidly increasing in diameter, the last whorl very 
large ; spire short, broadly, ovately conical; sutures well impressed ; 
aperture elliptical or elongate-ovate, narrowed above, longer than the 
spire; outer lip thin, only slightly thickened by a longitudinal rib ; 
inner lip thin, narrow, appressed to the umbilical region so as to 
leave a well-marked chink; callus on the parietal wall thin, wide, 
well marked; columella twisted, with a strongly developed ascend- 
ing plait. 

Length 30, width 13.5, aperture length 18, width 8.5 mm. Type. 

Length 28, width 13.5, aperture length 17, width 8 mm. Type. 

Length 31, width 14.5, aperture length 18.5, width 9.5mm. Type. 

Types: The Chicago Academy of Sciences; 1 specimen, cotypes, 
collection W. A. Nason, 2 specimens. 


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PLATE Vi. 


NAUTILUS XX. 


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ALDRICH : BUSYCON MONTFORTI. 


THE NAUTILUS, XX. PLATE Vil 


7 9 


1-3. SEGMENTINA ARMIGERA, 4-6 S CRASSILABRIS 
7-9. S. WHEATLEYI. 


THE NAUTILUS. 127 


Type locality : Near San Francisco, California. 

Range: California, near San Francisco (W. A. Nason); San Joa- 
guin River (Mrs. E. E. Bush, Phil. Acad.); Merced Lake (Stearns, 
Dall, Smithsonian Institution); between Animas and La Plata, 
Colorado (Ingersoll). 

Remarks: L. leaii seems to be a very distinct species, easily recog- 
nized by its short spire, very large aperture and heavy columellar 
plait. It is more nearly related to L. proxima rowellii Tryon than 
to any other species, but seems to be distinct. It has probably been 
heretofore identified as a form of the protean species palustris, but it 
is unquestionably distinct from any form of that species. It also re- 
sembles L. reflexa hemphilliana Baker, but differs in being very much 
broader and has a differently shaped and larger aperture. It is 
named in honor of one of America’s best known conchologists, Dr. 
Isaac Lea. 


THREE NEW SPECIES OF SCALA FROM CALIFORNIA. 


BY WILLIAM HEALEY DALL, 


During the last year or two, among the minute shells, collected by 
various correspondents on the Californian coast, there have been 
several undescribed forms of Scala, descriptions of which follow. 


Scala berryi n. sp. 


Shell small, white, six-whorled: nuclear whorls polished, smooth, 
without varices; later whorls with rather strong, reflected, faintly 
axially striated varices, on the last whorl about 20 or 21 in number; 
these varices are quite close-set, not angulated in front of the suture 
and markedly reflected, with the interspaces smooth; base with no 
basal disk or cord, the coil imperforate, the peristome rather callous 
on the pillar side. Long. 3.5., max. diam. 1.75 mm. 

Dredged in 200 fathoms, San Pedro Bay, Cala., Mrs. Oldroyd ; 
and in 12 fathoms off Del Monte, Monterey Bay by S. S. Berry. 
U. S. Nat. Mus. 107,724. 

This species is, perhaps, nearest to S. clathratula A. Adams, and 
to the next species. 

Scala rectilaminata n. sp. 


Shell very similar to S. berry’, with the same number of whorls 
and varices, but having the nuclear shell smaller, the test less heavy, 


128 THE NAUTILUS. 


the varices nearly vertical to the surface of the whorl, instead of 
reflected, which makes them appear sparser, though really the same 
number occur on the whorl; the varices are narrower and the peris- 
tome less heavy and wide. Long. 3.25, max. diam. 1.6 mm. 

Dredged in twelve fathoms mud, Monterey Bay, S. S. Berry. 
U. S. Nat. Mus. 110,430. 

The specimens seen are of a more yellowish-creamy-white than 
S. berryt which has a bluish subtranslucent appearance. ° 
Scala (Cirostrema) montereyensis n. sp. 

Shell small (probably not full grown), the nucleus lost but with 
five subsequent rapidly increasing whorls; shell substance in two 
layers, the inner translucent white, solid, the outer opaque white, 
frothy, porous, with numerous puncticulations arranged in harmony 
with the incremental lines, except on the basal disk where they form 
spiral lines; varices low, solid, with a spongy surface, nine in num- 
ber; basal disk conspicuous, slightly concave; bordered by a con- 
spicuous cord ; aperture gibbous, patulous near the imperforate axis. 
Long. 2.5, diam. 1.5 mm. 

Dredged in 25 fathoms mud, off Del Monte, in Monterey Bay, 
Cala., by S. S. Berry. U.S. N. Mus. 110431. 

This shell represented by two specimens, of which one is in Mr. 
Berry’s collection, is doubtless immature, but there is no other species 
known north of Cape St. Lucas belonging to this special group, and, 
though the characters require rather high magnification to see them 
clearly, it cannot be confounded with any other Californian species. 


NOTE ON THE GENUS PSILOCOCHLIS DALL. 


BY WILLIAM H. DALL. 


This curious Turbinella, collected by Mr. McCallie in the Eocene 
of Georgia, was described in Tor Nauritus for May, 1904, p. 9. 
Additional material shows that the mature shell is covered with a 
coating of enamel which extends to the very apex of the spire, ob- 
scuring the sutures, a feature not hitherto reported in connection 
with the genus Turbinella or any of its close allies; so that Ps¢lo- 
cochlis described as a subgenus, seems fully entitled to generic rank. 
Only the typical species, P. mccalliei Dall, is at present known. 


THE NAUTILUS. 129 


PUBLICATIONS RECEIVED. 


A Review or THE AMERICAN VOLUTIDZ. By Wm. H. Dall. 
(From the Smithsonian Miscellaneous Collections, vol. 48, 1907.) 
This paper is the revision promised by the author in his *“* Notes on 
some names in the Volutide,” in Tue Navtitus for April, 1906. 
Some years ago Dr. Dall outlined two important groups of the Vol- 
utidz as follows : 

1. Subfamily Scaphellinz, with a membranous protoconch which 
is lost early in the intracapsular development and is replaced by a 
shelly envelope, the secondary nature of which is evident in well pre- 
served specimens. 

2. Subfamily Volutinz, a shelly protoconch. In these forms there 
is no membranous stage, the protoconch being shelly throughout its 
history. This shelly apex is never naturally lost. 

His recent researches have shown that the type of the genus Sca- 
phella belongs to the Voluting, and therefore the subfamily name 
Scaphelling has been given up and Caricellinz substituted for it. In 
his review Dr. Dall employs not only the apical shell characters 
which he regarded as important in his earlier papers, but also many 
features of the soft anatomy. Stress is laid on “‘ the presence or ab- 
sence of a cecum to the esophagus ; the characters of the radula; of 
the verge, or external male organ ; and the presence or absence of an 
operculum.” A new three-fold division of the Volutidzx, here out- 
lined, is regarded as provisional. It may be briefly summed up as 
follows : 

1. Subfamily Volutine. A shelly, persistent protoconch, sessile 
eyes, operculum usually absent and the radula teeth usually in one 
tricuspid series. 

2. Subfamily Caricelline. A membranous protoconch, operculum 
absent, radula variable or absent. Otherwise as in Volutine. 

3. Subfamily Volutomitrinze. Protoconch supposedly shelly ; adult 
unicolored, with a conspicuous periostracum ; small stalked eyes, 
‘“‘ radula of a single long series, the separate teeth unicuspidate, with 
deeply arcuate bases.” No operculum. 

The genera and species are distributed among the subfamilies as 
follows : 

Volutine: Voluta (Linné) Lamarck, with the following species: 
musica L., virescens, Sol., ebraa L. 

Lyria Gray with the species beauii Fischer and Bernardi, 


130 THE NAUTILUS. 


Enexta Adams with the species barnesii Gray, cumingi Brod., 
pedersentt Verrill, cylleniformis Sowb., archeri Angas, reevet Dall, 
guildingii Sowb. 

Plejona Bolten containing species “ conchologically related to the 
V. spinosa Lamarck.” 

Caricellinae: Adelomelon Dall, with the species ancilla Sol., sub- 
nodosa Leach, benthalis Dall, martensi Strebel, magellanica Lamarck, 
ornata Lahille, beckii Brod., tuberculata Swainson, brasiliana Sol., 
ferussacti Donovan, paradoxa Lahille, stearnsti Dall, philippiana 
Dall. 

Zidona H. and A. Adams with the species angulata Swainson. 

Tractolira Dall with the species sparta Dall. 

Aurinia H. and A. Adams with the species dubia Brod., robusta 
Dall, gouldiana Dall. 

Maculopeplum Dall with the species junonia Hwass, dohrni Sowb. 

Volutomitrine: Volutomitra Gray with the species gronlandica 
Beck and alaskana Dall. 

Owing to the scarcity of specimens, we do not realize that on the 
coasts of North and South America there are 33 recorded species. 
There are considered to be two centers of distribution for the Amer- 
ican species, the southern end of South America is taken as one 
center and the Antilles as the other. The paucity of species along 
the Pacific coast north of south latitude 40° is remarked upon. 

Under the genus Aurinia, typified by A. dubia, Dr. Dall says: 
“This genus is the degenerate descendant in one line, as Maculopep- 
lum is a normal descendant in another, from the Eocene Caricella. 
Its most prominent feature is the enfeebled plaits of the pillar, 
usually of diminished number as well as size, its thin shell and prom- 
inent Caricella-nucleus. The absence of the radula it shares with 
Maculopeplum, though Halia, evidently a close relative, and even 
more degenerate as regards the shell, has retained the radula.” The 
type of the genus Maculopeplum is the well-known Voluta junonia 
Hwass. 

In his note on the Volutide which appeared in Toe NavTILus 
for April, 1906, Dr. Dall calls attention to the fact that the type of 
Swainson’s genus Volutilithes is not Voluta spinosa but Voluta mur- 
tcina Lam. This point was ably confirmed by Mr. R. Bullen New- 
ton! in June, 1906. 


1‘‘Note on Swainson’s Genus Volutilithes,” Proc. Malac. Soc., Lond., June, 
1906, p, 100. 


THE NAUTILUS. 131 


Volutilithes muricina is evidently well removed from the forms 
usually described as Volutilithes spinosus and Volutilithes petrosus. 
The use of the generic name Plejona to designate such forms as the 
the latter, seems, however, to be without warrant. As Mr. Newton 
has pointed out, Bolten refers his Plejona fossilis to four figures in 
d’Argenville. These four figures represent not only four different 
species, but four different genera! 

The very existence of the name Plejona rests, therefore, on a poor 
basis, and it is hard to see how its type P. fossilis, can be restricted 
to V. spinosa. 

But to return to the application of Plejona to American Eocene 
forms, the study' of very large and carefully collected series from our 
Gulf States has convinced the reviewer that the forms described as 
Athleta tuomeyi by Conrad are nothing but races of his Voluta petrosa 
which have been subjected to an unfavorable environment. They 
are of one genetic stock, and the differences can in no sense be regarded 
as generic; in fact they are not even specific. 

M. Cossmann? in reviewing this study pointed out that if its re- 
sults are to be accepted, Athleta must be substituted for Volutilithes 
Swainson (1840 non 1831). 

Athleta rarispina is the type of Ath/eta and is probably related to 
Lamarck’s Voluta spinosa in about the same way that A. tuomey? is 
related to Conrad’s Voluta petrosa. With our present knowledge it 
seems better to adopt Athleta for Conrad’s Voluta petrosa, its varia- 
tions, mutations and allies, than to revive Plejona. 

In conclusion it is noted with regret that Dr. Dall has not pro- 
vided this interesting and important paper with figures, which would 
have been of the greatest assistance to workers having only small 
collections or small libraries at their command.—Burnetr SMi1rTu. 


Fossit MoLiusca FROM THE JOHN Day anpD MASCALL BEps 
or Oregon (Univ. of California Publications, Bull. Dept. of Geol- 
ogy, V, no. 3, pp. 67-70). By Robert E. C. Stearns. The new 
species are Epiphragmophora dubiosa, Pyramidula lecontei and Lym- 
nea maxima. The first is apparently related to fidelis or mormorum ; 


1Smith, Burnett: ‘“‘ Phylogeny of the Races of Volutilithes petrosus,” Proc. 
Acad, Nat, Sci., Phila., May, 1906, p. 52. 


* Revue Critique de Paléozoologie, p. 222, October, 1906, 


132 THE NAUTILUS. 


the second to Oreohelix strigosa. Together with Dr. Stearns’ previous 
report on John Day land shells (Sczence, 1902, 153), this paper is of 
great interest, showing the antiquity of the present generic groups of 
land shells, which were manifested in forms not unlike those now ex- 
isting in the same region, as far back as the miocene.—H. A. P. 


CaTALOGUE OF THE Mottiusca oF ILuinors. By Frank Collins 
Baker (Bull. of the Ill. State Laboratory of Natural History, VII, 
article 6, 1906). This catalogue ‘ is intended to record every refer- 
ence to the mollusca occurring in the state, which may be found in 
the published lists, and also all scattered references wherever pub- 
lished.” Under each species the author quotes every locality from 
which specimens have been recorded, giving the authority for each 
in parenthesis. 241 aquatic and 91 terrestrial species are recorded. 
No less than 28 species and varieties have been based upon Illinois 
specimens, seven of them being now considered synonymous. From 
only ten counties, says Mr. Baker, have careful lists been made. In 
this catalogue records have been obtained from 69 counties, of from 1 
to 145 species. What has been done, and the great amount of work 
still to be done, is graphically shown inthe map. The richest portions 
of the State, along the Wabash and Ohio rivers, are still very little 
known; but in the upper counties several energetic naturalists have 
thoroughly worked up the fauna, so that this first attempt at a State 
catalogue is very creditable to the author, as well as the other natur- 
alists, Messrs. Ferriss, Hinkley, Handwerk, Marsh, Nason, Strode, 
Hart and others, who have contributed records. 

It is inevitable in a first attempt to cover so large an area, that 
some doubtful records, demanding careful verification, must be in- 
cluded, and this catalogue is naturally no exception. Baker and 
his co-workers will doubtless now set about the task of investigating 
these questionable records. A paper by Prof. Shimek on his inves- 
tigation of Pyrgulopsis in Rock River seems to have been overlooked. 
Together with Baker’s ‘* Moilusks of the Chicago Area,” this cata- 
logue forms an excellent basis for further work in Illinois. 


THE Fossit Mouttusca oF FLorissant, CoLoRADO.—By T. D. 
A. Cockerell (Bull. Amer. Mus. Nat. Hist., xxii, 1906). The fol- 
lowing species are described as new. Omphalina(?) laminarum, 
Planorbis florissantensis, Lymnea sieverti, scudderi, Spherium flor- 
tssantense. The new name Columna haydeniana is proposed for 
Bulimus teres M. & H., not Olivier. 


ae NAUTILUS. 


VoL. XX. APRIL, 1907. No. 12. 


NOTES ON SOME NEW MEXICAN ASHMUNELLAS. 


BY H. A. PILSBRY AND JAS. H. FERRISS. 


Since the publication of the results of our work on Ashmunella in 
1905,’ various correspondents have contributed specimens which 
throw light upon a number of dubious points relative to the group of 
species inhabiting the Sierra Blanca and Sacramento ranges, in New 
Mexico, east of the Rio Grande. 

There can be no doubt that a systematic campaign in this region 
by collectors who are not afraid of hard work, and who get live 
shells, would be well rewarded by a most interesting catch. It is 
absolutely essential, however, to get to the mountain-tops, and to dig 
deep in the rock-heaps. You will need a Ferriss hoe and stout 
gloves, and you must forget fatigue. 


ASHMUNELLA RHYSSA TOWNSEND! (Bartsch). Plate VIII, figs. 1, 2. 


Ashmunella townsendi Bartsch. Smiths. Misc. Coll., xlvii, p. 13 
(Aug. 6, 1904). 

Ashmunella rhyssa townsendi Bartsch, Pilsbry. Proc. A. N. S., 
Phila., 1905, p. 231. 

This race differs from A. r. miorhyssa chiefly by its strongly- 
ribbed surface, like A. alf/ssima, which, bowever, is far smaller, 
more depressed and more openly umbilicate. Three of the original 
lot of townsend?, taken by Prof. lownsend in the Sierra Blanca 


‘Mollusca of the Southwestern States, Proc. A. N. 8., Phila., 1905, pp. 
223-253. 


134 THE NAUTILUS. 


above Ruidoso, N. M., sent by Prof. Cockerell, one with the spire 
broken, measure : 

Alt. 8.8, — 8 mm. 

Diam. 14.1, 14.8, 13 mm. 

Whorls 54, — 54. 

Ribs on the last whorl 60, 48, 46. 

The number of ribs on the last whorl is only approximately stated, 
since on account of irregularities and minor wrinkles or ripples it is 
impossible to make a quite definite count. 

The weak trace of a parietal tooth is visible in one of the specimens. 

The two specimens examined by Mr. Bartsch measure 8.2 x 15 mm. 
The number of ribs is not stated. 

These specimens are intermediate in character between the smaller 
and more strongly-wrinkled examples of A. rhyssa, collected by Mr. 
Ashmun, and the following form. 

Thirteen examples, all dead and bleached, were taken by Mr. F. J. 
Phillips on the north slope of a small brook near Nogal Creek, at an 
elevation of 7500 ft., Lincoln Co., N. M., and recently sent to one 
of us, one being drawn in figs. 1, 2 of plate VIII. In general char- 
acter the lot is quite uniform. There are 30 to 35 ribs on the last 
whorl ; in a few cases as many as 40, by splitting or breaking up of a 
number of ribs. Ten of them, unbroken, measure as follows: 

Blt 18-1 5 Ogu Gods eDy |) Oy deOsi deOy heO, ike lg OLD aU 

Diam. 13, 12.9, 12.8, 12.25, 12.2, 12, 12, 12, 12, 11.5 mm. 

In 8 out of 10 fully adult shells a parietal tooth is developed, varying 
from a mere trace in some to a well-developed though small tooth in 
three or four. In two fully adult shells there is no trace of a tooth. 
A low basal tooth is present in all, but in two or three it is barely 
perceptible. The largest shell has 54 whorls, the smallest barely 5. 

This colony has the character of townsendi—small size and heavily- 
ribbed surface—more emphatically expressed than in the original 
townsend, and compared directly with rhyssa it appears to be quite 
distinct; yet it is connected with rhyssa through the more finely- 
ribbed forms from above Ruidoso, so that the use of a trinomial 
seems to express its relations better than an arbitrary specific 
separation. 


ASHMUNELLA RHYSSA (CkIl.) Plate VIII, figs. 3, 4, 5. 
Professor Cockerell having found the unique type specimen of 


THE NAUTILUS. 135 


A. r. hyporhyssa kindly sent it for study. It is wholly bleached, 
has lost the cuticle, and measures, alt. 9, diam. 15 mm., umbilicus 
3.1 mm., and has 54 whorls. There is a very slight basal lip-tooth, 
and a small oblique parietal tooth, about 1.8 mm. long. The 
sculpture is decidedly finer than in A. rhyssa, agreeing closely with 
specimens of A. r. miorhyssa collected by Ashmun, which, however, 
differ by having a slighly smaller umbilicus, 2.3 to 2.5 mm. wide in 
a shell of nearly 16 mm. diam., and the aperture in miorhyssa is 
slightly larger. I can find no other differences between miorhyssa 
and hyporhyssa. 

A. r. hyporhyssa was taken by Prof. C. H. T. Townsend “ on the 
lower slopes of White Mt., above head of Ruidoso, Aspen belt, at 
about 9500 ft.” 

A. rhyssa and A. r. miorhyssa are from the Sierra Blanca. 


Ashmunella rhyssa edentata Ckll. 


A. rhyssa hyporhyssa Pils. Proc. A. N. S., Phila., 1905, pp. 
228-231, pl. 12, f. 7-13, exclusive of synonym ‘‘Polygyra r. hypo- 
rhyssa”’ and quoted description of same. 

Similar to A. r. miorhyssa, but frequently more depressed, with 
wider umbilicus, and generally without a parietal tooth, which is 
present in less than 5 per cent. of the specimens examined. 

Sacramento Mountains, at various elevations, as given in the paper 
cited above. While but weakly differentiated from the Sierra Blanca 
forms, it is well to have a name for the Sacramento race, common in 
James Canyon near Cloudcropt. 

I formerly united this race and A. r. hyporhyssa, in the absence of 
the type of the latter. 


ABALONES AND THE EARTHQUAKE. 


BY ROBERT E. C. STEARNS. 


The Japanese abalone fishermen who have made their head- 
quarters at Carmel Bay, a few miles south of Monterey, had planned 
to extend their operations to the more southerly part of the coast, on 
the shore of San Luis Obispo County. This was in August. Upon 
examination later on of the rocky region near Morro, where they 
expected to make a great haul, it was found that the sea-bed was 
coated with a greasy slime of a supposed bituminous character, which 


136 THE NAUTILUS. 


had killed the abalones. Abalones were found in abundance for 
miles along the shore, so it was reporied, but all dead. As the 
‘‘ meats,” as the dried soft parts are called, constitute the chief profit 
of the fishery, no doubt the Japanese were disappointed. 

The earthquake of April 18th, which was felt very slightly at 
Morro, was credited with the killing, though it may have been caused 
by some subsequent seismic disturbance. The abalones that occur 
along this part of the shore belong principally to the species Haliotis 
rufescens and H. cracherodti. 

The Japanese parties engaged in the fishery at various places, in 
some instances, use a diving-suit for working in or below the lamina- 
cian zone, and are stripping some localities quite thoroughly. The 
Chinese are said to confine their collecting generally to shallow 
water. The greater part of the dried meats, if not all, are exported 
to China. 

There is one cannery in or near San Pedro where the abalones are 
packed, the can-labels bearing the trade name of ‘“ Eno-labo,” which 
it will at once be seen is merely Obalone spelled backwards. Here 
is an instance on a small scale where commercialism overreaches 
itself. The dear public don’t know what ‘‘ Eno-labo”’ means, and, 
as my grocer tells me, don’t buy the goods. Fresh-packed “ Eno- 
labo,” however, is quite palatable and wholesome food, good enough 
for anybody. 

Los Angeles, Cal., February 1, 1907. 


EPIPHRAGMOPHORA (MICRARIONTA) HUTSONI N. SP. 


BY GEO. H. CLAPP. 


Shell openly umbilicate ; rather thin but strong, smooth and shin- 
ing when fresh ; reddish-horn color on the upper surface, much paler 
to creamy-white below, with a rather narrow brown band, about 
1 mm. wide, above the periphery, visible only on the last 14 whorls, 
the band margined above and below by wider white bands, the lower 
shading off into the light-colored base. Whorls about 43, the inner 
ones convex, the last somewhat flattened above, well rounded below 
and at the periphery. The embryonic shell consists of 12 whorls, 


THE NAUTILUS. 137 


terminating with an inconspicuous whitish line; the first 4 whorl is 
depressed and highly polished; the remaining embryonic whorls are 
evenly and densely covered with elongate-oval papille arranged in 
spiral lines. In the following 14-2 whorls, beginning the neanic 
stage, the epiconch bears exceedingly delicate, very short hairs ar- 
ranged in obliquely descending series, but less regular than the 
papillz of the embryonic whorls. These are entirely lost in mature 
shells, although the hair-scars are generally visible on fresh speci- 
mens. The body-whorl shows the usual slight growth-lines, but is 
otherwise smooth except for varical impressions showing resting 
periods, of which there are usually 2 on the body-whorl and others 
clear up to the nuclear whorls. The body-whorl enlarges rapidly, 
and is suddenly deflected and expanded at the aperture, which is 
large, almost round, oblique, with a slightly reflected and thickened 
margin ; lips widely expanded at the columella and partly reflected 
over the umbilicus. Ends of lip converging, forming about four- 
fifths of a circle. Gr. diam. 144, lesser 114, alt. 8 mm. Aperture 
7 mm. high, 7 mm. wide. Umbilicus 24 mm. 

The figured specimen measures, alt. 7.5, diam. 14 mm. The 
largest and smallest shells that I have seen measure 15 and 123 
mm. diam. respectively; both are dead shells. 

Collected by Geo. S. Hutson, after whom the species is named, 
about 8 miles from Quartzsite, Yuma Co., Ariz., in the foothills, at 
an alt. of about 1600 ft. 

Types, No. 5659 of my collection ; co-types, coll. A. N.S. P. 

The sculpture of the embryonic whorls of this beautiful little shell 
puts it in the group of Sonorella wolcottiana Bartsch (Smiths. Mise. 
Coll., xlvii, p. 187, pl. xxviii). A large series from young shells of 
24 whorls to adults show the sculpture and epiconch in all stages, 
the latter being so thin and delicate, however, that it apparently 
entirely disappears by the time the shell has completed the third 
whorl. The shells are remarkably uniform in size and color, and 
most fresh specimens show occasional translucent spots scattered 
over the body-whorl. The resting periods are shown by well- 
marked varical impressions at all stages of growth, as is common in 
most species from a semi-arid region. The body of the animal is 
intensely black, with a gray mantle. 


188 THE NAUTILUS. 


ON THE SOFT ANATOMY OF E. (MICRARIONTA) HUTSONI. 


BY H. A. PILSBRY. 


The animal is purplish-black, with gray mantle-edge. The sur- 
face is finely and evenly granulose. There is a weak impressed line 
on the ridge of the tail, and a pair of contiguous dorsal grooves, 
scarcely noticeable except between the tentacles. Foot-margin very 
narrow, hardly differentiated. The sole is conspicuously tripartite 
in color, the sides being purplish or slaty-black, while the middle 
field is of a much paler gray tint. The pale area is somewhat wider 
than the dark sides. 

The genitalia, fig. 6, show a very short penis, swollen basally, an 
epiphallus of about the same length or somewhat larger, and a 
flagellum longer than either. The long retractor muscle is inserted 
on the epiphallus, and distally on the lung floor. At the base of the 
vagina a well-developed dart sack (d. s.) is inserted ; on each side of 
its base enter the ducts of the mucous glands, which ascend as high 
as the dart sack and then descend, their flattened, glandular portions 
being bound to the vagina and atrium. The general relations of the 
dart sack and mucous glands are shown diagramatically in fig. 8. 
As usual, the two glands are unequal. The spermatheca is ovate, 
on a long, slender duct. Length of penis 2 mm.; of epiphallus 2.8 ; 
flagellum 4 mm.; length of spermatheca and duct 16.5 mm. 

The right ocular retractor passes between the g and 2 branches 
of the genitalia. 

The general features of the alimentary tract are as usual in the 
Helices. The crop is long, the salivary glands equally lengthened, 
lying on the upper side of the crop, and concrescent throughout their 
length. 

The jaw is of the usual arcuate shape, with only three ribs, grouped 
in the median third (fig. 7). 

The radula has 17,10,1,10,17 teeth (pl IX, fig. 5). The cen- 
tral and lateral teeth have simply mesocones without side cusps. 
The marginal teeth have the ectocones developed, and in the outer 
ones the larger cusp is bifid. I noticed no teeth with the ectocone 
bifid. The transition from lateral to marginal teeth is quite gradual, 

The venation of the lung is faintly outlined with gray pigment. 
The kidney is about half as long as the lung, and nearly twice the 
length of the pericardium. 


PLATE WIL: 


THE NAUTILUS, XX. 


PILSBRY: ASHMUNELLA FROM NEW MEXICO. 
PRESTON : CALLIOSTOMA AND CYPRA. 


THE NAUTILUS XX. PLATE IX. 


CLAPP: EPIPHRAGMOPHORA HUTSONI., 


THE NAUTILUS. 139 


While the shell of this species has all the appearance of a Sonor- 
ella, the soft anatomy shows that it belongs to the subgenus Miera- 
rionta, of Epiphragmophora, represented by E. gabbi, facta, stearnsi- 
ana, ete., the genitalia being typical for that group. In Sonorella I 
have figured the anatomy of eight species and subspecies. All agree 
in having a well-developed penis, and the flagellum is excessively 
short or wanting, usually about half a millimeter long, in one case 
one mm. long, but its length is always a very small fraction of that 
of the epiphallus. In no Sonorella is there any trace of dart sack or 
mucous glands. This is very unlike these organs in H. hutsoni. 

The unexpected internal anatomy of this species emphasizes the 
uncertainty of dealing with Sonorella-like Helices without examina- 
tion of the soft anatomy. How many of the supposed Sonorellas of 
southeastern California may really prove to belong to Micrarionta is 
problematic, but perhaps all those with the embryonic sculpture like 
E. hutsoni will eventually be removed from Sonoralla. 


EXPLANATION OF PLATE IX. 

Figs. 1-3. Epiphragmophora hutsoni, shell. 

4. Apex, enlarged. 

5. Teeth. 

6. Genitalia, 

7. Jaw. 

8. Diagram of dart sack and mucous glands. d.s., dart sack; 
ept., epiphallus; 77., flagellum ; m. g/., mucous glands. 


DESCRIPTIONS OF CYPRAEA BERNARDINZE AND CALLIOSTOMA 
CARNICOLOR N. SP. 


BY H. B. PRESTON. 


CYPRAEA BERNARDINZ n. sp. Pl. VIII, fig. 8. 


Shell oval, with a well-defined dorsal line dividing into a small 
fork near the anterior extremity; dorsal surface brownish-gray 
flecked with white spots and streaks; sides white, sparsely spotted 
with chestnut, a number of dashes of the same color appearing at the 
anterior extremity and slightly crenulated at the margins of the dor- 
sal surface; extremities obtuse; base white; columella somewhat 
straight, bearing seventeen rather fine, white teeth; peristome very 
slightly curved, having fifteen teeth ; aperture narrow. 


140 THE NAUTILUS. 


Length 28.50 mm., greatest breadth 20 mm. 

Hab.: Celebes (?). 

A striking shell, whose nearest ally is perhaps Cypraea turdus Lk. 
From this, however, it may be easily distinguished by the remark- 
able white flecking on the dorsal surface, by the finer and more 
numerous teeth on the columella and the narrower and straighter 
aperture ; moreover, it is much flatter than is the case with Cypraea 
turdus. 


CALLIOSTOMA CARNICOLOR n. sp. Pl. VIII, figs. 6, 7. 


Shell conical, keeled, imperforate, somewhat glossy, flesh-colored ; 
spire concave; whorls 8-9, the last three rapidly increasing and 
much flattened, sculptured with nodulous spiral ridges, almost every 
alternate nodule being of a rich chestnut-brown; sutures not well 
defined above, and only slightly impressed between the last whorls ; 
base very inflated and sculptured with closely-set spiral ridges inter- 
cepted by lines of growth, thus presenting a coarsely, granular 
appearance; columella arched, reflexed outwards, forming a thick 
callosity over the umbilical area, a slight callosity extending upwards 
to the lips above; peristome simple ; aperture subquadrate ; interior 
of shell nacreous and irridescent. 

Alt. 41 mm., diam. maj. 53 mm. 

Aperture, alt. 25 mm., diam. maj. 25 mm. 

Hab. : Celebes (?). 

The above shell at first sight much resembles Calliostoma cun- 
ninghami Gray, from New Zealand; the spire is, however, more 
concave, the last whorls are much more flattened and expanded out- 
wards, and the nodulous spiral ridges are far less numerous than is 
the case with that species; moreover, the inflation of the base easily 
separates it from C. eunninghami. 


DESCRIPTION OF A NEW BIFIDARIA (B. AGNA). 


BY H. A. PILSBRY AND E. G. VANATTA. 


When working on Bifidaria pentodon some time ago we found one 
specimen of a species evidently distinct though related to that, from 
‘‘ Silver Lake, Kansas,” collected by Mr. J. B. Quintard. Recently 
a few more examples of the same form were found in river débris 


THE NAUTILUS. 141 


taken last October at Trinidad, in southeastern Colorado, by Mr. 
J. H. Ferriss and the senior author. 


BIFIDARIA AGNA 0. sp. 


The shell is rimate, cylindric, the last three whorls of about equal 
diameter, the summit very obtuse; surface nearly smooth; of a sperm- 
aceti-whitish color. There are 4? convex whorls, the last with a 
strong rounded crest behind the outer lip, rather close to it above, 
but being more oblique, it is further behind the lip at the base. 
Behind this crest the whorl is a little flattened laterally, and shows 
the lower palatal plica, though as a white spot. The aperture is 
brought forward nearly in line with the ventral convexity of the 
whorls. The peristome is thin, slightly expanded, strengthened a 
short distance within with a low callous rib. The parietal lamella 
appears distorted and angular in front view ; seen from the base it is 
seen to consist of an angular and a parietal lamella, completely 
united inwardly. The columellar lamella is sinuated or bent and 
strongly developed. The basal fold is strong, arising on the callus 
but extending inward beyond it. The lower palatal fold is large and 
pliciform, more or less immersed, standing chiefly inward from the 
palatal callus: The upper palatal fold is much smaller, and stands 
rather near the lower, upon the palatal callus. There is a small or 
minute suprapalatal fold, also on the callus. 

Length 1.75, diam. 1 mm. 

Trinidad, Colorado, type no. 93052 A. N.S. P.; also Silver Lake, 
Kansas. 

This species resembles some forms of B. pentodon (Say), especially 
those from northern Alabama, in which the lower palatal fold is long 


142 THE NAUTILUS. 


and enters somewhat beyond the palatal callus; but it differs by the 
distinctly bifid parietal tooth. The very strong crest behind the lip 
is characteristic of B. agna. Like the related forms, this species has 
the somewhat translucent whiteness of spermaceti or paraffin. 

In the specimen from Kansas the teeth are somewhat smaller than 
in the type. It may be less mature. 


CORRESPONDENCE. 


Editor Nautilus: I have to thank Mr. Burnett Smith for his ex- 
tended review of my paper on American Volutide in the March 
Navutitus. There are, however, a few points on which further 
light is desirable, and I wish to note them briefly. 

1. So far from this being the general revision of the family upon 
which I have been for some time at work the recent publication is 
only a small part of it, which I thought I had made clear in my 
remarks on page 341. My regret at not being able to illustrate the 
paper is quite as great as that of my reviewer, but only those cog- 
nizant of the facts know, since we lost Dr. McConnell, how many 
fruitless, or almost fruitless, efforts have been made to obtain a com- 
petent draughtsman. An important paper has been for more than a 
year at a complete standstill, owing to the absence of an artist who 
could do the drawings. 

2. I pointed out in 1890 the identity of the so-called Athleta 
tuomeyt with Volutilithes petrosa Conrad, and ascribed the deformity 
to some special conditions of the environment. We have some two 
thousand specimens in the National Museum, a part of which are 
normal. But while the most conspicuously deformed specimens are 
from Wood’s Bluff and the lower Eocene generally, we have also 
distorted forms from Jackson, Miss., and several other Jacksonian 
localities, and one specimen from the Claibornes ands. These I shall 
be happy to show Mr. Smith if he can pay us a visit. 

That the true Athleta rarispina bears any such relation to Voluta 
spinosa Lam. as V. tuomeyi does to petrosa is impossible, for Mr. 
Smith’s suggestion is incompatible with the fact that A. rarispina is 
confined to the upper Oligocene, Miocene and Pliocene of Europe, 
while V. spinosa is restricted to middle Eocene (Calcaire Grossiere). 
There is no species contemporaneous with the Athleta which could 
take the place of V. spinosa in such a relation, and, further, the two 
species of Athleta are normal and not abnormal shells. 


THE NAUTILUS. 148 


8. The remarks about Plejona which were made by both Mr. 
R. B. Newton and Mr. Smith indicate unfamiliarity with nomencla- 
torial questions, which indeed are sometimes sufficiently puzzling. 
But there is no ambiguity or difficulty in the case of Plejona, if the 
rules are complied with. Bolten’s genus (for the period remarkably 
homogeneous) contains 24 species, all of which are identifiable, in 
terms of the older authors, and only one of which is a fossil. The 
first (fossil) species is based upon four very fair figures of ‘“ spiny 
murices,”’ which Argenville referred to one species, but which repre- 
sent three or four, as species are now reckoned. If we prefer to take 
our type from the first species in Bolten’s list, it reduces itself to a 
simple process of elimination which leaves us with V. spinosa (one 
of those figured) as the type. If we regard the solution as vague, 
there still remains my absolute right to revive Bolten’s name for any 
species contained in his list, and for which there is no prior valid 
name. This I did several months before Mr. Newton proposed 
Volutospina for the same shell. 

If we reject Bolten’s P. fossilis as vague, we are left to take 
Voluta ebraea, his second species, as type, which involves the loss of 
the generic name Voluta (Lam.), as now universally used, which it 
seems to me would be foolish, since the preceding method enables us 
to retain Voluta for V. musica and its allies without upsetting any 
accepted name. 

I regard Athleta (rarispina) Conrad as a good genus, perfectly 
distinct from Plejona (spinosa) Bolten, as well as from the V. petrosa 
deformities, The latter were erroneously referred to the genus 
Athleta, which they really only superficially resemble, and conse- 
quently any attempt to use Athleta tor the spinosa group is fallacious. 
Athleta does not occur in America, but there are probably three 
European species. Wma. H. Datt. 

Smithsonian Institution, March 6, 1907. 


PUBLICATIONS RECEIVED. 


West American Mitrip#.—By Mrs. M. Burton Williamson 
(Proc. Biol. Soc., Washington, xix, Dec., 1906). Mitra ide, fultont, 
lowi, and the Peruvian MM. orientalis are discussed at length and 
with the exception of M. low?, figured. A useful work, since these 
black Mitres have been involved in some confusion. 


144 THE NAUTILUS. 


THe Unionip# or Kansas, part I, by Richard E. Scammon, 
(Kansas University Science Bulletin, iii, no. 9). ‘In ‘this catalogue 
are listed 61 species and ‘5 subspecies. There is no doubt that future 
collecting will add many more species to the list. The author has 
tried to make certain of the identification and localities of every 
species listed, and with three exceptions has examined native speci- 
mens of each.” Nearly all of the species are illustrated by line 
drawings occupying 23 plates, and all are described. Since only 
about 40 species were previously known, it will be seen that one-third 
of those now recorded are new to the state. Mr. Scammon proposes 
two new descriptive terms: “ ¢nterdentum,”’ for that part of the 
hinge-plate lying between the pseudocardinal and lateral teeth, and 
“branchial outline,’ to designate the slight groove in the cavity of 
the more solid Unios, caused by the edge of the branchix. It is 
proposed in future papers to discuss the geographic distribution and 
soft anatomy of the species. 


NOTES. 


In a recent letter Prof. Josiah Keep says: ‘‘ The principal part of 
my edition of ‘West American Shells’ was destroyed in the great 
San Francisco fire, so there are no more copies in the book stores. 
Fortunately the cuts were stored in my home, and may be used again 
if there should be a considerable demand for a revised edition. Of 
this matter, however, I do not feel certain, though I have received 
some very kind letters upon the subject.’’ We are sorry to learn of 
Prof. Keep’s great loss, and hope that he will receive sufficient 
encouragement to undertake a new edition of his work. 


ZONITOIDES ALLIARIA IN CoLoRADO.—A couple of weeks ago 
Guy H. Mason found in the Knudson greenhouse, Boulder, Colo., a 
specimen of Zonitotdes alliaria Drap., a species well known to Euro- 
pean conchologists, but of which American records seem to be rare, 
and confined, so far as they have come to my attention, to green- 
houses. It occurs to me that the rarity of records may have resulted 
from American conchologists unfamiliar with the species placing it 
in their collections under some other name, particularly Z. cellaria. 
We are indebted to Dr. Wm. H. Dall for confirmation of the identi- 
fication, he having compared it with British specimens as named by 
Jeffreys. It was at once recognized by Prof. Cockerell as of that 
species, but his long absence from Europe made him feel somewhat 
uncertain about it without opportunity to make direct comparisons. 
The specimen is now in the University of Colorado Museum.— 
Junius HENDERSON. 


if ERE 


NAUTILUS 


A MONTHLY JOURNAL 
DEVOTED TO THE INTERESTS OF 
CONCHOLOGISTS ~ 


VOL. XXI. 
MAY, 1907, to APRIL, 1908. 


EDITORS AND PUBLISHERS: 
H, A. PILsBrRy, Curator of the Department of Mollusca, Academy of Natural Sciences, 
PHILADELPHIA, 


C. W. JoHnson, Curator of the Boston Society of Natural History, 
Boston. 


iN mi 
ASH tt 


INDEX 


TO 


THE NAUTILUS, VOL. XXII. 


INDEX TO SUBJECTS, GENERA AND SPECIES. 


Acmea alveus Conrad ; : : ‘ ‘ : CSA Ld: 
Acmea testudinalis Mull, . : ; ‘ ‘ ce ED 
Acmea, New England species of, (Pl. ID - : 1, 24 
Acuminia Dall, n. subgen. of Terebra . ; d . 124, 125 
Adelopoma stolli Martens . : : : : : AP ite: 
Alabama, Eocene fossils from 8 
Alaska, U. S. Coast Survey Expedition in the wae 1867 . 29 
Ampullaria, the origin of the lung. : : BMT | 
Ancey collection of shells . P : : . : aS 
Anculose, On certain immature . ; : : ‘ EM 
Anculosa praerosa Say (Pl. X, figs. 1-6) . ‘ ‘ aE 
Anculosa subglobosa Say (Pl. X, figs. 9-11) . : RE A 
Anculosa tintinnabulum Lea. (Pl. X, figs. 7-8) . d MERES 
Ancylide, New species of (Pl. IX) . : d . 126, 136 
Ancylus hemisphericus Walker, n. sp. (Pl. IX, figs. 14-16). 140 
Ancylus hendersoni Walker, n. sp. (Pl. IX, figs. 8-10)  . 138 
Ancylus hinkleyi Walker, n. sp. (Pl. IX, figs. 11-13) . . 139 
Ancylus novanglie Walker, n. sp. (Pi. TX, figs. 5-7) . . 138 
Anodon moretonianus Sowb. : : c : ; 486 
Ashmunella rhyssa hyporhyssa Ckll. . : 4 . aie 3 | 
Australian Unionidae, Notes on . 4 : : ‘ ULES 


(iii ) 


iv THE NAUTILUS. 


Bela grippi Dall, n. sp. 
California, atieene fauna of ee teres Rew 


3, Lai 


17, 34, 39, 51 


Molluscan fauna of the San Bernardino Mountains 121 
Mollusca found in the vicinity of La Jolla 


CPE Vit) . 55, 65, 92, 106 
Cancellaria obtusa Desh. . 105 
Cape Cod notes . 14 
Cecilioides jod Pils., n. sp. 28 
Cephalopods, gione the 23 
Cerithiopsis regularoides Aldrich, n. sp. (PI. i ie 7) 9 
Cerithium stantoni Dall n. sp. 22 
Cochliopa riograndensis Pils. & Retiss 19 
Celostele in Mexico , TT 


Colorado, A new zonitoid shell fron ‘lie Miocene. iMonaeane 89 


Gencuolonical Society, Proposals for . 94 
Cyclas similis Say 33 
Cymatium corrugatum var. geomet Dall, n. var, 85 
Cyprea coxeni Cox, Note on . 36 
Cytherea petechialis of Carpenter’s Meczatlenn Cacatob ue 049 
Davis, Charles Abbott (obituary) TSH 
Dayton, Charles Austin (obituary) igs 
Diplodon angasii Lea. MOTERS 
Diplodon bednalli Tate hae tt 
Drymeus multilineatus Say ont 
Duplicaria Dall, n. gen. 124, 125 
Kuglandina texasiana Pfr. . TT 
Euglandina truncata Gmel. 7 
Kocene fossils from Alabama 8 
Fissurella unilineata Aldrich, n. sp. (PI. Lif fig. 10) 11 
Florida, A list of the land shiell3 of Lee County , 99 
Florida Keys, A new Cerithium from the 22 
Fluminicola minutissima Pils., n. sp. (Pl. IX, fig. 4) . 176, 133 
Gundlachia stimpsoniana Smith (Pl. IV) 14, 15 
Hastula : . 124 
Heilprin, Angelo (eunuten) 60 
Helicodiscus lineatus, Eyes of 73 
Helix hortensis . . 6, 91, 130 
Holospira hinkleyi Pils. su. , (PL. ITT, fig: 34) . 27 
Hygromia hispida in maine . 109 


THE NAUTILUS. Vi 


Ilyanassa obsoleta in San Francisco Bay . ’ : See 
Lampsilis fimbriata Frierson, n. sp. . : : ~ 50 
Littorina nebulosa Lam. var. columellaris Orb. ; ay (i! 
Lymnea jacksonensis Baker, n. sp... ; j : . 52 
Lymneea pseudopinguis Baker, n. sp. . , 5 : . o4 
Maine, Shells of the Lake region of . : A : . 106 
Mollusks of North Haven p : 4 : . 142 
Pulmonates of the Manticus Is. ‘ ; ; Nair 
Marginella apicina Menke, Sinistral . : , a 
Mathilda elongatoides idrich, n.sp. (PLE, fig. 6) : ALLO 
Mathilda leona Aldrich, n. sp. (PI. I, figs. 4,5) . ; eke 
Mathilda singularis Aldrich, n. sp. (PI. I, ig, 1h) 4 Fk 
Matinicus Islands, Maine pulmonates of the 5 ; it AO 
Mexican shells, Description of New . ; . 25, 36, 38, 86 
Mexico, Shell-collecting in Northeastern. : 2 6816 
Micrarionta desertorum Pils. and Ferr., n. sp. (Pl. IX, figs. 
6-10 : ; , : : : : ; . 134 
Milax gagates in @clorada : Z ; 4 : . 131 
Murex carpenteri var. alba Berry, n. var. . : . 105 
Neoplanorbis carinatus Walker, n. sp. (Pl. IX, ats g3 17,18). 127 
Neoplanorbis smithii Walker, n. sp. oa EX: fas. Dawe) 9) ae 
Neoplanorbis tantillus Pils. : fy b265 Lag 
Neoplanorbis umbilicatus Walker, n. sp. (Pl. IX, figs. 3,4). 126 
New York, A collecting trip at Naviinort : : 4 . 98 
North Carolina, A new Polygyra from ; ; : wi dS 
Oysters are wild animals. 47 


Pachycheilus vallesensis Haein, n. sp. (PI, a ie nae, i 10). 25 
Paludestrina tampicoensis Pilsbry & Hinkley n. sp. (PI. 


7V, fig.,13) : F : ; : , : . | ed 
Puphia &tuminea Conr. ; : i : : (ae 
Pelseneer’s treatise on Mrettnece 4 Pee. | 
Pennsylvania, Notes on the conchology of Baca mice Gre 
Perirhoé Dall, nov. section of Terebra s : . 124, 125 
Planorbis magnificus Pils. . : : : ; . 90 
Planorbis multivolvis Case (Pl. VIII). : : ; Pd 
Polygyra aulacomphala Pils. & Hinkley n. sp. (Pl. V, 

Pe ba). : ‘ : : : - a0 


Polygyra Hopetonénbis Shuttlw. : : id Gil 
Polygyra martensiana Pils. n. sp. (Pl. XI, Ae 2 3) « 126, 833 


vi THE NAUTILUS. 


Polygyra multilineata chadwicki Ferriss, n, var. : Go 
Polygyra polita Pilsbry & Hinkley n. sp. (Pl. V, fig. 11) . 38 
Polygyra soelneri Henderson, n. sp. (PI. III, figs. 1, 2) HLS 
Pomatiopsis robusta Walker, n. sp. . aye ith 
Publications received . : : : 23, 36, 48, 72, 119, 132 
Pyrgulopsis wabashensis Hinkley n. sp... : : Ay Bk 
Rissoa grippiana Dall, n. sp. : . . 136 
Rhode Island, Additions to the shell- neers raollneen mee 3 
Rous, Sloman (obituary). : eee 
Say’s early writings and species, iN fow noe on ‘ Rae 
Scala dolosa Aldrich, n. sp. (PI. I, fig. 13) . : , peal 
Scala vetusta Aldrich, n. sp. (PI. I, tig. 9) . ‘ : Beryl) 
Spineoterebra Sacco . ; ; . 125 
Spiraxis tampicoensis Pils. (Pl. III, fis. 5). ; 2 | eS etal 
Stearns, Frederick (obituary) . : 3 ; ‘ . 88 
Guociniea ovalis Say . ; noe 
Terebratulina ‘honaeile sees Alaviers n. sp. (Pl I aan. 12,5) aes 
Terebride, Subdivisions of the . ; : : . 124 
Tresus nuttalli Conr. . : : : . 141 
Triplostephanus Dall, nov. penton of Terebra : . 124, 125 
Triton gibbosus Brod. in California. ; , . 106 
Tritogonia tuberculata with ova . : : ; Les 
Trivia pilula Kiener, Note on : eit) 
Turbonilla anita Aldrich, n. sp. (Pl. I, ne 2) b Me 
Turbonilla castanea Dall & Bartsch, preoce.=T. erence 
Dail, n. n., F : 2 elo 
Durbonilln pees Miarich Nn. Sp. (Pl. 1, pl See : alae 
Unio angasii Lea : i : : : : : > AES 
Unio bednalli Tate. : ‘ 2 : : : . 118 
Unio crassus Say ; : . 82 
Unio gigas (Swains. ) Sby. (U. cumingii Ten ; : nee 
Unio ochraceus . ; : . : , : Lito 
Unio plicatus Say : : : s : : ; hoe 
Unio plicatulus Lea. . : : : : : : . 90 
Unio popei Lea. . : : : : ; - eet) 
Unios, The gravid periods oi : : : ; : +) pow 
Unionide, Notes on Australian . , : ; : AS 
Unionide, Notes on exotic (Pl. VI) . ; 4 é », 49 


Vendryes, Henry (obituary) : ; 4 : : . 107 


THE NAUTILUS. vii 


Vertigo occidentalis Sterki, n. sp. i XI, fig. - . 90, 133 
Vitrea alliaria . : . 131 
Vitrea cellaria in Gelocndey ‘ ; . : 4 At 
Vitrea cellaria var. margaritacea Bohanidt : : ; . 131 
Vitrea dalliana Simpson (figured ) ; : , : . 129 
Vitrea fagalis Cockerell, n. sp. (miocene) . : i 89 
Vitrea lewisiana Clapp, n. sp. (figured) . P : . 129 
Vitrea lucida in Colorado . : 131 
Yemassee, South Carolina, Land and fee ee abel of . U 
Foniataes elegantula Pfr. . ; i 0 


Zonitoides pentagyra Pils., n. sp. (PI, III, foe 6 8). . 28 


INDEX TO AUTHORS. 


Aldrich, T. H. 
Baily, Jr., Joshua L. 
Baker, Frank Collins 
Berry, S. 8S. . 
Brooks, W. K. 
Button, Fred L. 
Carpenter, H. T. 
Clapp, Geo. H. 
Cockerell, T. D. A. 
Conner, Charles H. 
Dall, W. H. 
Ferriss, Jas. H. 
Frierson, L. 8. 
Gratacap, L. P. 
Henderson, John B. 
Hinkley, Anson A. 
Jackson, Jr., Henry 
Johnson, C. W. 
Lermond, N. W. 
Morse, Edward S. 
Norton, Arthur H. 
Pilsbry, Henry A. 
Rous, Sloman 
Smith, Maxwell 
Stearns, R, E. C. 
Sterki, V. 

Vanatta, E. G. 
Walker, Bryant 
Weeks, Jr., Wm. H 
Wheat, Silas C. 
Winkley, Henry W. 


Baer. 
67,92 

d hee 

17, 34, 39, 51, 105, 121 

ea) || 

36, 59 

AT 

91, 129 

89, 106, 131 

3s 18m 

99, 85, 90, 91, 107, 124, 131, 136 
31, 134 

49, 86, 118 

: . 84 

: 7, 13, 107 

25, 38, 68, 76, 117 

1, 24, 142 

106, 119, 120, 130 

. 106 

73 

: 3 : 4 ae 
. 26, 38, 75, 132, 183, 134 
. 165 

55, 65, 106 

23, 29, 141 

. 81, 48, 80, 90 

: 99 

: Ga 61, 97, 110, 126, 138 
98 

: 93 

‘ : > ee 


(Gan 


tee NWAUTILUS. 


Vou. XXI. MAY, 1907. No. 1. 


THE DIFFERENCES BETWEEN THE TWO NEW ENGLAND SPECIES OF 
ACMAEA. 


BY HENRY JACKSON, JR. 


During the summer of 1906, at North Haven, Penobscot Bay, 
Maine, I collected about fifteen specimens of Acmaea testudinalis 
(Miller) and thirty Aemaea alveus (Conrad), alveus being by far the 
more common. I put A. alveus here as a species rather than a var- 
iety of A. testudinalis, in accordance with one of the latest lists of 
New England mollusks which gives Conrad’s species alveus specific 
rank. From this material I procured the radulas with the intention 
of studying the differences between the species testudinalis and alveus, 
The shell in ¢estudinalis is a roundish and asa rule regular shell, 
there not being so much variation in form as in alveus. The shell 
of alveus is a narrower, laterally more compressed shell than that of 
testudinalis, and is found on eel grass, wharf piles and occasionally 
on rocks, but at North Haven it is most commonly found on eel grass 
which grows in great profusion, much to the disadvantage of boats 
and boatmen, all along the muddy shores. A. testudinalis is com- 
monly found on flat stones between tide marks. The coloring of tes- 
tudinalis, as far as observed at North Haven, has much less variation 
than that of the form alveus, which runs from nearly white to dark, 
blackish-brown, with many intermediate shades. This narrow, com- 
pressed form of alveus, it would seem, might have been caused by 
its being on eel grass which has narrow leaves and might cause a 
shell to be narrow by the lack of space to grow on. But Mr. Blaney 
has found alveus at Iron Bound Island, Frenchman’s Bay, Maine, 


2 THE NAUTILUS. 


on the under side of stones ona coarse, pebbly beach, and here it 
still retained its characteristic, long, narrow form. See Proceedings 
of Boston Society of National History, Vol. 32, No. 2, Nov., 1904. 

All the illustrations here are of the same magnification. In the 
fifteen specimens of Acmaea testudinalis collected and studied the 
radulas were all the same with no observed variation, see Pl. II, 
Fig. 1. All had two central (C C), two lateral (L L), and two 
outermost teeth (U U), while among the thirty A. alveus were several 
abnormal radulas, in all of which abnormal cases there were three 
teeth in the center, Pl. I], Fig. 4, instead of two, Pl. II, Fig. 2, 
which is the normal number for alveus. The additional or third 
tooth (A), see Pl. II, Fig. 4, is on the left side and is a narrower 
tooth than the other two (C C). These abnormal radulas came 
from three very different individuals: one from a large, blackish, 
distorted shell, an adult, and one from a small, regular, white 
specimen of the nepionic age, and so on, all being different. There 
are several differences between the radulas of testudinalis and of 
alveus, and these differences were constant throughout the speci- 
mens examined. 


Fia. 5. Fia. 6. 


Fig. 5 (in text). Aemaea testudinalis (Mill). Normal adult rad- 
ula. Developing teeth of the posterior portion of the same radula as 
Fig. 1. Lettering the same. 

Fig. 6 (in text). Portion of anterior part of radula of Acmaea tes- 
tudinalis, showing small bases (B), proximal portion of cusp (P C), 


THE NAUTILUS. os 


where the rest has been broken off, and plates (P) on lingual mem- 
brane (L M). U, outermost; L, lateral; C, central teeth. R 
turned over part of plate. B, base. 

There is a distinct dip in the proximal portion of the cusp of testu- 
dinalis in the laterals : this does not appear in alveus. In testudinalis 
the bases project from the proximal portion of the cusp at an obtuse 
angle, while in alveus the proximal portion of the cusp is the same 
size as the adjoining portion of the base. In ¢estudinalis, Pl. II, 
Fig. 1, the apex of the cusp is just inside of the letter (L), from 
here it slopes down to the base; while in Pl. II, Fig. 2, alveus, the 
apex of the cusp runs the whole length of the foremost line border- 
ing the shaded portion. In testudinalis the lateral teeth form a 
letter v, while in alveus they form an inverted v, thus a. In alveus 
the laterals are less underneath the centrals than in testudinalis. 
The teeth of testudinalis are sharply rounded at the apex of the cusp, 
while those of alveus are nearly square, Pl. II, Fig. 2, and the 
younger, undeveloped teeth of the radula of an adult shell of alveus 
are perhaps the squarest of all, Pl. II, Fig. 4. This figure is of the 
developing teeth of the posterior portion of the same radula as Pl. II, 
Fig. 2. That is that portion hidden within the throat which will 
later come forward to take the place of worn-out teeth. I thought 
of the various causes of these differences, but it could not be in- 
dividual variation, because the differences were constant throughout 
the forty-five specimens examined. It could not be because the 
teeth were worn square, as the squarest of them in alveus are in the 
early, developing part of the radula and before they had been used 
at all, see Pl. II, Fig. 3. There were five less important differences 
between the radulas of testudinalis and of alveus, these are: First the 
outermost tooth (U) is, in alveus, larger in proportion to the lateral 
tooth (L) than the outermost tooth of testudinalis is to its lateral 
tooth (L). In both species this little outside tooth (U) is nearly at 
right angles to the next tooth and the cusp of U faces in center of 
the lingual membrane (L), also it is very close to it, and at first 
glance appears to be the same tooth, only being a cusp of the larger 
denticle, but when viewed in a sideways, sectional view it is seen to 
be distinct. In the species testudinalis the tooth (U) cannot take 
much part in cutting food as it so much underlies the larger tooth (L), 
but in alveus, where it is more outstretched, it may do a good deal 
of work. Secondly, in A. testudinalis the cusps and bases alternate 


? 


4 THE NAUTILUS. 


large and small, see Pl. II, Fig. 1, that is, the base of the centrals 
(C C) being large and the cusps small ; whereas in the laterals (L L) 
the bases are very small and the cusps large. The teeth in both 
species are set on separate plates, two on each plate. These plates 
are arranged in two rows, one down each side of the lingual mem- 
brane. The divisions between these separate plates are not distinct 
in the developing portion of the radula, but the plates seem to 
wrinkle with age, and in the center of the radula an elongated oval 
space is seen between the two. The first two or three rows of teeth 
in A. testudimalis are slightly blunter than those behind, but by no 
means so blunt as in A. alveus. What I mean by first teeth are those 
teeth in the anterior portion of the radula, these teeth are replaced by 
new ones which come forward from the developing portion. 

Fig. 6, drawn by the author, showing plates and proximal portion 
of cusps in A. testudinalis where the rest is broken of. 

Again the cusps of the teeth of testudinalis are very much more 
slanting backward or posteriorly than those of alveus, especially the 
laterals (LL). Lastly, the cusps of testudinalis are minutely granu- 
lated, while those of alveus are indistinctly striated. This was seen 
in some cusps broken off their bases, placed on a separate slide and 
viewed with a one-sixth inch objective. 

In summing this matter up, one might say without much doubt 
that these two shells were distinct species. Also one may say that 
both radulas are exceedingly strange. They have no central tooth 
speaking strictly, as, with the exception of the abnormal radula of 
A. alveus, all radulas had an even number of teeth. Their deep 
chestnut color is another curious feature. Also they are very hard 
radulas to draw as they are raised more than most teeth and the 
angles and focuses are hard to get. 

My thanks are due to Mr. R. T. Jackson, of Cambridge, and to 
Mr. J. A. Cushman, of the Boston Society of Natural History, for 
drawings of the radula. 


EXPLANATION OF PLATE AND FIGURES. 


Fig. 1. Acmaea testudinalis (Mull). Normal adult radula. L, 
lateral; C, central; U, outermost teeth. The cusps are shaded. 

Fig. 2. Acmaea alveus (Conrad). Normal radula. Lettering the 
same as before. The outermost teeth (U) are so close to the laterals . 
(1) that in this view they seem to be joined. 


THE NAUTILUS. 5 


Fig. 3. Acmaea alveus (Conrad). Normal radula. Developing 
teeth of the posterior portion of the same radula as Fig. 2. These 
teeth have little or no coloring. Lettering the same. 

Fig. 4. Aemaea alveus (Conrad). Abnormal radula. L, lateral ; 
C, central; U, outermost; A, additional teeth. 


PULMONATES OF THE MATINICUS ISLANDS, MAINE. 


ARTHUR H. NORTON. 


The Matinicus Islands form a group of off-shore islands outside of 
Penobscot Bay. They constitute the most isolated land mass of any | 
size in the state, their nearest point of approach to the mainland 
being thirteen nautical miles. In the group there are eight islands, 
seven dry and numerous half-tide and sunken ledges. The total 
acreage I have roughly estimated at about fifteen hundred acres. 

Matinicus is the largest of the group, containing about eight hun- 
dred acres. It is quite well wooded and diversified in topographical 
features. Exploration of this island would doubtless increase the 
following list materially. 

Seal Island lies six miles east of Matinicus harbor, and Matinicus 
Rock five miles south of the harbor, both forming isolated points of 
great exposure and long separation. 

Several plants are found in abundance on these two points which 
are nowhere else abundant on this coast west of Petit-Menan point. 
Both are destitute of trees, As would be expected from their long 
isolation and great exposure, they are completely ‘‘ rock bound,” in 
fact, enormous ledges, with their valleys and seams filled with soil, 
which is partly coarse gravel, deeply overlaid with decayed vegeta- 
tion, and everywhere strewn with fragments of rock, rent by frost 
and the action of time, or hurled by the fury of unusually severe 
storms. 

The southwestern exposures of both are bluffs dropping immediately 
into water of considerable depth. At the rock, the history of which 
has been made known through the medium of the light-house estab- 
lishment, the surges generated by gales from the southeast not in- 
frequently break over the island notwithstanding the fact that it is 
about fifty feet above mean high-water mark. 


6 THE NAUTILUS. 


The character of the soil, and the copious moisture from dews and 
fogs are conducive to very rank growth of several species of maritime 
plants, affording suitable conditions for the mollusca enumerated. 

During my visits to the islands, shell collecting has been entirely 
secondary. Yet the isolation of the islands lends so much interest 
to the collection that the following records do not seem entirely 
superfluous, especially as a thorough investigation is not practicable 
at present : 

Helix hortensis Muller. In June, 1896, I found this species in 
great abundance on Seal Island. They inhabit the rank vegetation 
toward the western end. The yellow, unbanded phase predominated, 
only three or four banded ones being found. Some young speci- 
mens having but two and a half whorls were also found on the occa- 
sion of this visit. I have not found it on any other island of the 
group. It was recorded by Mr. C. W. Johnson from Seal Island in 
Tue NavtiLus for November, 1906, page 77. 

Vallonia costata Mull. Rather abundant on Seal Island in 1896 
among rank herbage and driftwood. 

Pupilla muscorum Linn. Four specimens were found with the 
last-named species. They are but 3 millimeters long, half a milli- 
meter shorter than specimens taken on the adjacent mainland. One 
is a rich brownish, the others opaque white, all edentulous. 

Cochlicopa lubrica Mill. One specimen was found under a log, 
stranded high on Matinicus Rock, August, 1905. 

Vitrina limpida Gould. Found rather plentiful among stranded 
chips and rank vegetation on Matinicus Rock, July, 1908. 

Zonitoides arborea Say. Matinicus Rock. Three specimens 
under logs, stranded high above normal tide mark, August, 1905. 

Agriolimax agrestis Linn. Several specimens were found under 
logs and stones or hidden by rank vegetation on Matinicus Rock, 
August, 1905. 

Pyramidula alternata Say. A single dead and broken shell was 
found at the northern part of Matinicus Island, August, 1905. 

Pyramidula striatella Anth. Common with the other small species 
on Seal Island, June, 1896. 

Succinea obliqua totteniana Lea. One found on Matinicus Rock, 
July, 1903. 

Succinea avara Say. Two obtained at Seal Island, June, 1896, 
and one very small one at Matinicus Rock, July, 1903. 


PLATE I. 


NAUTILUS XXI 


THE 


E FOSSILS. 


N 


ALDRICH: NEW EOCE 


THE NAUTILUS XXI. PLATE II. 


S 


JACKSON: RADUL4® OF ACMAEA. 


THE NAUTILUS. Z 


A LIST OF LAND AND FRESH-WATER SHELLS OF -YEMASS8EE, SOUTH 
CAROLINA. 


BY JOHN B. HENDERSON. 


In the early part of March last I spent a week upon.a plantation 
near Yemassee, Beaufort Co., South Carolina, the greater part of my 
time being spent in snail hunting. Beaufort is a low-lying county 
within the Atlantic coastal plain. Its features are of three distinct 
sorts: a sandy, dry-pine area, the “knolls”’ of live oak with rather 
dense deciduous vegetation, and the swamp lands. The swamps are 
extensive, often containing forests of cypress and rank growths of 
aquatic vegetation. In places these swamps are drained and con- 
verted into rice fields, the latter furnishing excellent stations for 
fresh-water mollusca. The pine lands harbor a scant mollusean 
fauna. ‘The great majority of land shells are to be found only in and 
about the edges of the deciduous forests. In the depths of the 
swamps I found almost nothing, the fresh-water species seeming to 
prefer more open and smaller bodies of water—particularly the little 
ditches which drain the rice fields. 

The prevailing Polygyra is hopetonensis, a typical costal plain 
species, as it ranges along the Atlantic border from Norfolk to St. 
Augustine. It obviously belongs to the fallaz-tridentata series and 
I think is a descendant of the former, which, having migrated into the 
lowlands of the coast, has been modified by its new environment. 
The species has become well enough marked to separate it readily 
from the upland fallax. It admits, however, of several local races 
which may some day be christened with varietal names. The ex- 
treme forms are hopetonensis obsoleta Pils. of Newbern and Wilming- 
ton, N. Car., a large form entirely without teeth upon the outer lip, 
and a Yemassee race which is very small and with strongly devel- 
oped denticles. 

I was surprised to find Huglandina truncata an abundant species 
so far north. The Yemassee specimens are large, stout fellows of 
very brilliant pink, rather darker than typical Florida specimens. 

The following is a complete list of my catch, though it cannot be 
faunally complete. The entire absence of Amnicolids, Unionide, 
Viviparide and of Ancylus is rather striking. I owe many thanks 
to Dr. Pilsbry for his critical identification of my shells: 

Polygyra thyroides Say. 

Polygyra hopetonensis Strebel. 


8 THE NAUTILUS. 


Polygyra postelliana Bland. 
Polygyra pustulotdes Bland. 
Euglandina truncata Gmel. 
Cireinaria concava Say. 
Gastrodonta cerinoidea Anth. 
Zonitoides arborea Say. 
Zonitoides minuscula Binn. 
Vitrea indentata Say. 
Helicodiscus parallelus Say. 
Euconulus chersinus Say. 
Bifidaria contracta Say. 
Bifidaria procera Gld. 
Succinea campestris unicolor Tryon. 
Suecinea aurea Lea. 
Planorbis parvus Say. 
Planorbis tumidus Pfr. 
Physa cubensis Pfr. 

Physa heterostropha Say. 
Lymnaea columella Say. 
Sphaerium partumetum Say. 
Pisidium sp. 


SOME NEW EOCENE FOSSILS FROM ALABAMA. 


BY T. H. ALDRICH. 


The shells described below are all in the cabinet of the writer, and 
are believed to be new. ‘They are mostly small species or else very 
rare, and represented by very few or single specimens. 


TEREBRATULINA BRUNDIDGENSIS n. sp. PI. I, figs. 1, 2, 3. 

Shell medium, narrower than high, radial threads very strong in 
the young shell becoming finer in the older, and in the oldest forms 
appearing as very fine lines only. A central, raised rib doubled shows 
on the ventral valve, replaced with a depression between two ribs on 
dorsal valve; foramen oblong. Longest diameter 14 mm., width 
11mm. Smallest form figured is 9 mm. and 7 mm. 

Locality : Eocene of Brundidge, Ala. 

Remarks: This species occurs ina stratum of white limestone 
which was exposed in a large well close to the R. R. station. This 
well was dug for water for a supply for the engines, but when the 


THE NAUTILUS. 9 


limestone stratum was dug into it failed as a water tank. Associated 
with the species is 7erebratula wilmingtonensis L. & S., Ostrea vomer 
Morton and several other species which occur in the white limestone 
or Jackson horizons. The area surrounding the well is typical Nana- 
falia lignitic deposits. So far no other outcrop of this limestone has 
been observed in the vicinity, but careful search is yet to be made. 
This discovery was called to my attention by Dr. E. A. Smith, 
State Geologist of Alabama, who sent me a number of specimens. 
We subsequently visited the well together and went over the locality 
south of the town, failing to find an outcrop. Dr. Smith thinks his 
discovery is an ‘‘overlap”’ of the white limestone or Vicksburg, 
somewhat as in certain Georgia localities. All the different forms 
of Terebratula wilmingtonensis mentioned and figured by Prof. Dall 
in Vol. 3 of Wagner Free Inst. of Science, p. 1537, pl. 58, figures 
14-20, are found here. 


TURBONILLA (STRIOTURBONILLA) HARRISI n. sp. PI. 1, fig. 8. 

Shell as figured, small, with approximately parallel sides. Whorls 
eight, the two apical ones smooth ; spire obtuse ; whorls longitudin- 
ally striated with numerous impressed lines; base of shell smooth; — 
aperture ovate, pillar lip bearing one fold. Length 3 mm. 

Locality : Wood’s Bluff, Ala. 

Remarks: This species is doubtless the same one mentioned by 
Prof. G. D. Harris in Bulletins of American Paleontology, No. 11, 
p. 96, pl. 12, fig. 10, 1899, as Turbonilla sp.(?), but he evidently had 
an immature shell. Named in honor of Prof. Harris. 

TURBONILLA (CINGULINA) ANITA n. sp. PI. 1, fig. 12. 

Shell medium, spire obtuse, whorls nine, the two apical ones 
smooth, balance with about six spiral impressed lines ; lines of growth 
very fine and rather close set, aperture ovate. Pillar lip twisted and 
slightly prolonged at base. Length 6 mm, breadth of body whorl 
24 mm. 

Locality : Wood’s Bluff, Ala., and same horizon 6 miles east of 
Thomasville, Ala. 


CERITHIOPSIS REGULAROIDES n. sp. PI. 1, fig. 7. 

Shell small, fragment from which this description is made with 
seven whorls ; these have two raised spirals, which form nodules at 
the intersection with the longitudinal lines. The spirals are placed 
one above and the other below the centre of each whorl ; longitu- 
dinals coarse and prominent; a smooth raised spiral encircles each 


10 THE NAUTILUS. 


whorl below the suture. The base appears to be smooth, canal 

twisted. Length of fragment 74 mm., breadth of basal whorl 24 mm. 
Locality : Wood’s Bluff horizon six miles east of Thomasville, Ala. 
Remarks: This species has a general resemblance to Cerithiopsis 

fuviatilis Ald., but differs in the position of the raised spirals. 


MATHILDA ELONGATOIDES n. sp. PI. 1, fig. 6. 


Shell small, exceedingly narrow and elongated, whorls about four- 
teen, well rounded, carrying three nearly equidistant strong spirals 
on the main part of each whorl and also a slight one just below the 
suture. The longitudinals between the spirals are numerous and 
close set, and rather fine. Body-whorl at base shows several spirals 
in addition to those above mentioned. Aperture nearly circular. 
Apical whorls reversed. Length 6 mm., breadth of body-whorl 1 mm. 

Locality : Wood’s Bluff, Ala. 


MATHILDA SINGULARIS n. sp. PI. 1, fig. 11. 

Shell small, whorls profusely ornamented ; number of whorls five, 
besides the embryonic apex; apical whorls twisted and pointed hori- 
zontally or at right angles to the axis of the shell. The main whorls 
are angulated by a very strong peripheral line with a smaller one 
above, and from one to two still finer ones between. Body-whorl 
shows several (about four) fine spirals below the central one, extreme 
base nearly flat. Aperture ovate; pillar lip reflected, and slightly 
prolonged into a canal. 

Locality : Wood’s Bluff, Ala. 


Marui_pa Leona Aldrich. Pl. 1, figs. 4, 5. 

This species was described from the Wood’s Bluff horizon. The 
present specimen is from the Matthew’s Landing beds, one mile west 
of Oak Hill, Ala. The original description was drawn from a young 
shell, and in this example the embryonic whorls are twisted to the 
left and the spire projects horizontally. This specimen also shows 
a small umbilicus. 


ScaLa VETuSTA n. sp. Pl. 1, fig. 9. 

Shell as figured, number of whorls unknown, but four showing in 
type; they are rapidly expanding and ornamented with about twenty 
raised ribs; suture defined with a strong carina which makes a raised 
and angulated boundary for the base; the ribs continue over this 
line, and disappear into a deep and wide umbilicus. The spiral 
lines do not show upon the base. The figure is natural size. 


THE NAUTILUS. ig 


Locality: Midway stage on McConnico plantation, Wilcox Co., 
Alabama. 

Remarks: This specimen is quite imperfect, but the species is so 
well marked that it deserves a name. It is probably the same form 
mentioned by Prof. Harris in Bulletin of Am. Pal., No. 4, p. 232. 


ScaLA DOLOSA n. sp. PI. 1, fig. 13. 

Shell rather small, cancellated ; whorls eight, the first two smooth, 
balance with spiral lines which are coarse near the middle of each 
whorl, these lines give each whorl an angulated profile. The spirals 
are nodular in part at the intersections with the longitudinals. The 
figured specimen shows a varix; aperture nearly circular, outer lip 
expanded and rounded, interior smooth. Umbilicus open, and 
carrying a groove. Base of shell carrying numerous spirals, but no 
nodes, the lines of growth being very fine. Length 7 mm., breadth 
4mm. 

Locality: Near Grave Yard Hill, Wilcox Co., Ala. Midway Stage. 


FISSURELLA UNILINEATUS n. sp. PI. 1, fig. 10. 

Shell small, rather thin, depressed conic, cancellated. The radial 
lines are equal and regularly spaced, while the longitudinals are 
bowed between the radials, giving to the surface a wavy appearance, 
no nodules at the intersections, the lines crossing regularly, Hole 
oval, with a complete oval callus inside. Longest diam. 13 mm., 
breadth about 7 mm., height 3 mm. 

Locality : Wood’s Bluff, Ala. 


NOTES. 


ASHMUNELLA. On page 134 of the last number, the second line 
from bottom should read ASHMUNELLA RHYSSA HYPORHYSSA CkIL., 
in place of ‘‘ Ashmunella rhyssa (Ckll.).”” Owing to my absence in 
Florida I had no opportunity to see the proofs of this article. 

H. ALP. 


THE ORIGIN OF THE LUNG IN AMPULLARIA. 


BY W. K. BROOKS.! 


Through the courtesy of Dr. Alfred G. Mayer I was able to visit 
and partially explore the Everglades of Florida in March, 1906. As 
we pushed our way through the tall reeds and grasses that cover the 


1From the Report of the Department of Marine Biology, Tortugas, Florida, 
Extracted from the Fifth Year-Book of the Carnegie Institution of Washington, 
p. 109, 1907, 


12 THE NAUTILUS. 


shallow water of the Everglades, we found great numbers of small 
eggs attached to the stems of the reeds and grasses above the surface 
of the water but close to it. 

The eggs were arranged in vertical rows, and were enclosed in 
calcareous shells, resembling in these respects the eggs of terrestrial 
pulmonate gasteropods. 

We also found in the water in great abundance the prosobranchiate 
gasteropod Ampullaria, and when some of the older eggs were opened 
they were found to contain young specimens of this genus. 

The Paludinidex, which are closly related to the Ampullaride, are 
aquatic, viviparous, and breathe by gills, and their structure indicates 
that they are true prosobranchs, descended from and closely related 
to the marine prosobranchs. Ampullaria has gills, is partly aquatic, 
and seems to be a true prosobranch, so far as its general structure is 
in question, but as it has a lung, and is able to breathe air and live 
out of the water, and as it also lays, in the air, eggs in calcareous 
shells, like those of the terrestrial pulmonates, the question whether 
it is primarily a pulmonate, with secondary resemblance to the pro- 
sobranche or primarily a prosobranch with secondary resemblance to 
the pulmonates, suggests itself. 

As the embryonic history of the breathing organs may be expected 
to throw light upon this question, a quantity of the eggs were col- 
lected and taken to the Marine Laboratory in the Dry Tortugas. 
There the eggs were opened, the embryos removed and sketched, and 
then hardened and preserved for embryological examination. 

On my return to Baltimore I placed the material in the hands of 
Mr. B. McGlone, who has studied the development of the respiratory 
organs under my supervision, and has nearly completed his work, 
which will soon be ready for publication. He has shown that the 
lung of Ampullaria is a member of the series of gill-filaments, and 
that it must be regarded as a modified gill, homologous with a cteni- 
dium, or with more than one. It is therefore an organ which has 
been secondarily acquired, and not derived from the lung of the ter- 
restrial pulmonates. 

Both lung and gills arise very early in the embryonic history of 
Ampullaria, and at rabout the same time. Ina very young embryo, 
soon after the mantle makes its appearance, a ridge or thickening of 
the epithelium of the inner surface of the mantle indicates the region 
from which the gill-filaments, the lung and the osphradium are to 
arise. The osphradium is developed from one end of this ridge, the 
gill-filaments from the other, and between the two the ridge becomes 
infolded into the substance of the mantle to give rise to the lung, 
which may be regarded as a modified and invaginated gill-filament. 

The similarity between the lung of the pulmonates and that of 
Ampullaria is therefore nothing more than a new illustration of a 
resemblance between organs that have been acquired independently 
under like physiological conditions. 


ee NAUTILUS. 


Vou. XXI. JUNE, 1907. No. 2. 


ANEW POLYGYRA FROM NORTH CAROLINA (P. SOELNERI). 


BY JOHN B. HENDERSON. 


On a collecting trip to the coastal plain region of North Carolina 
last autumn, with Mr. Soelner, of Washington, the following unde- 
scribed Polygyra was found : 


POLYGYRA SOELNERI n. sp. Plate III, figs. 1, 2. 

Shell globosely depressed ; spire low conoid, periphery rounded ; 
perforate, the opening half covered by columellar lip. Surface very 
glossy, closely, deeply and evenly ribbed throughout except on first 
14 whorls which are smooth. Whorls 54, regularly increasing, the 
last falling abruptly and shortly in front, having a pale spot at the 
deflection. Narrowly and deeply contracted behind the lip. Aper- 
ture oblique and irregularly crescentic. Lip reflexed with a flange- 
like internal thickening which is widest basally and terminates short 
of the columellar end of the lip. A rather long curved white par- 
ietal tooth stands upon a hardly perceptible parietal film. Color 
mahogany, with a glossy satin-like sheen; lip purplish outwardly, 
the inner flange buff. Alt. 7, greater diam. 11, lesser diam. 94 mm. 

Habitat among cypress logs in a swampy region on the north shore 
of Lake Waccamaw, North Carolina. 

This remarkably pretty little Polygyra, which is very distinct from 
any other known species, might be included in the section Mesodon, 
its nearest ally being P. christy’, from which, however, it differs in 
being larger, less depressed and umbilicated. I take pleasure in 
naming the species after Mr. Soelner, my enthusiastic companion in 
the field when it was first found. 


14 THE NAUTILUS. 


NOTES ON GUNDLACHIA. I. 


BY BRYANT WALKER. 


The validity of the genus Gundlachia Pfr. is one of the disputed 
points in systematic conchology. 

The article by Hedley, reprinted with notes by Dr. Pilsbry in the 
Navrixvs in 1895 (Vol. IX, p. 61), gives a very complete summary 
of the data down to that date. The only omission in regard to the 
North American forms that I have found, being the citation of G. 
ancyliformis Pfr. from Palma Sola, Manatee Co., Fla., by Simpson 
in 1888 (Con. Ex., II, p. 96). 

So far as I have been able to ascertain, no additional data in re- 
gard to our species have been published. 

In the Navurius for January, 1904, Dr. Dall called attention to 
a very interesting account by Nordinskiold of a septa-forming An- 
cylus from South America and expressed the opinion that the 
so-called Gundlachiz are merely Ancyli, which under favorable con- 
ditions are able to protect themselves from drought and cold by 
forming an epiphragm and subsequently ‘* to secrete an enlarged and 
somewhat discrepant shell.” 

The occurrence with typical Gundlachia of non-septate individ- 
uals indistinguishable in shell characteristics from Ancylus has been 
noted by several writers. Hedley, who believes the genus a valid 
one by reason of anatomical differences, apparently inclines to the 
view that ‘‘in unfavorable circumstances a septum is never formed.” 
While Dr. Pilsbry (Naurt., IV, p. 48), speaking of this apparent co- 
existence of two forms, remarks, that if correct, “‘ Gundlachia will 
furnish the most extraordinary case of dimorphism known among 
our American mollusks.”’ 

During the last few years I have had occasion to examine criti- 
cally large numbers of our Eastern American Ancyli, and until 
within the last year, with the exception of a small series collected by 
Ferriss near Joliet (to be discussed later), I have discovered no ten- 
dency whatever to septa-forming in any instance. 

Recently, however, material from Ohio, Indiana, Alabama and 
Mississippi has been received, which is of considerable interest as 
bearing on the question, and the evidence thus afforded is herewith 
submitted for consideration. 


THE NAUTILUS. 15 


The examination of this material leads necessarily to a study of 
the described forms of North American Gundlachia, and the results 
of this work may properly precede the consideration of the new ma- 
terial referred to. 


I 


Gundlachia stimpsoniana Smith, Plate IV. 

This species was described in 1870 (Ann. N. Y. Lyc. N. H., IX, 
p-. 399, fig. 6) from specimens collected in ponds at Greensport, 
Long Island, N. Y.,and on Shelter Island. Only the ‘ primary ” 
stage was figured. It has not been found elsewhere, so far as I know. 

Through the kindness of Mr. J. B. Henderson, Jr., I have been 
able to examine the original lot of this species from the Smith col- 
lection. It consists of 71 specimens from Greensport and 1 from 
Shelter Island. 

The Shelter Island example is a young shell that has completed 
the septum and is similar to the one figured (figs. 10-12). The 
Greensport set may be divided into four groups: 

1. 60 examples of the primary stage, with the septum in all stages 
of development, from the first beginnings at the posterior margin to 
the completed septum. With one exception, these specimens, al- 
though varying somewhat in size and shape, are similar in all other 
respects. The matured, or rather, perfected examples, vary from 
14 to 2 mm. in length, ? to 1 in width and from 4 to ? in height. 
The shape is an elongated oval, the ends bluntly rounded, the an- 
terior extremity being usually somewhat more expanded. ‘The sides 
are nearly parallel, usually somewhat constricted in the centre, and 
rather more so on the right than on the left, but in the smaller spe- 
cimens are occasionally slightly convex. The apex is blunt, slightly 
projecting and inclined to the right. It is radiately striate as in 
Ferrissia. The anterior surface is distinctly ribbed with fine radiat- 
ing ribs, which, however, do not extend to the apex. The septum 
for the posterior half or two-thirds is either flat or, more usually, 
slightly convex. From about the centre of the shell it is flattened 
and descends slightly to the aperture. This depression is, no doubt, 
caused by the body of the animal in moving in and out of the con- 
stantly decreasing aperture. The lines of growth are curved and 
delicate, but quite distinct. On completion of its growth the edge 
of the septum is abruptly turned upwards to the level of the edge of 
the shell, and the whole margin of the aperture thus formed is slightly 


16 THE NAUTILUS. 


thickened and becomes continuous as shown in figure 11. The ex- 
ceptional specimen noted above is noticeably larger, but proportion- 
ately more depressed than the other, measuring 24x 14x4mm. But 
in sculpture it is precisely the same, and I have no doubt that it 
belongs to the same species. In this, the septum is but partially de- 
veloped. A very similar specimen in size and appearance, but with- 
out any appearance of a septum, is noted under group 2. Nearly all 
of these specimens are ‘amber-colored,” as stated by Smith, but 
this is caused by a slight ferri-oxide deposit on the surface, which 
disappears on the application of oxalic acid, and leaves the whole 
shell of a clear, transparent, corneous color. 

2. Five examples of the primitive stage with no trace of septum. 
Evidently that growth had not yet begun. Four of them are of the 
usual size and shape of the ‘‘ primary ”’ shell. The fifth is somewhat 
larger and, barring the lack of septum, almost a duplicate of the ab- 
errant individual noted in group 1. 

3. Three examples in which the secondary growth had been made 
without forming a septum. In all of them the primary stage is 
sharply defined by the difference of color, and in color and shape 
agrees substantially with the usual appearance at that period. In 
one of them (figs. 3, 6, 9) the posterior slope is not continuous exter- 
nally, there being a well-marked ‘‘ break ”’ between the two stages 
of growth, and internally the secondary growth flares out at a decided 
angle all around the posterior margin of the primary shell. 

In the other two examples, the primary shell is rather more con- 
tracted laterally than usual, but the secondary growth is, on all sides, 
in a substantially direct continuation of the primary shell. It be- 
comes more or less irregular, however, as it progresses and the gen- 
eral effect of the entire shell is that of abnormal growth. None of 
these shells, however, are referable to any of the described species of 
Ancylus. Smith states that the Greensport Gundlachia were asso- 
ciated with Ancylus fuscus and with ‘‘more elevated specimens, 
probably belonging to another species.’’ If his identification of A. 
fuscus was correct, the difference in the apical sculpture, to say 
nothing of the general contour of the shell, forbid the union of the 
two forms. What his other species were, must remain uncertain 
until his specimens can be examined. Possibly they were non-sep- 
tate examples of ‘ stimpsoniana,” in which the line of demarcation 
between the primary and secondary growths was not so distinctly in- 
dicated as in these specimens, which he included with his Gundlachia. 


> 


THE NAUTILUS. 17 


4, Three examples having both a septum and a more or less com- 
plete secondary growth. Smith states that of about one hundred 
examples collected in the course of three years, only two were fully 
mature, Of the specimens now in the collection, only one is appar- 
ently mature, and that is much smaller than the dimensions given 
by Smith for the fully mature shell, %. ¢., 5x3}x1l4}mm. As 
shown by the figures (figs. 2, 5 and 8), it is somewhat defective along 
the left margin. Allowing for the broken edge it measures 33x24x1 
mm. In shape, however, it agrees substantially with Smith’s de- 
scription, and in the absence of a better, may be considered as 
typical. 

The second specimen, if ever mature, has had the secondary 
growth broken back on all sides nearly to the primary shell, so that 
it is quite impossible to say what the original size or shape was. 

The third example is apparently the one referred to by Smith (p. 
400) as having begun the secondary growth with a septum covering 
‘less than a quarter of the aperture.” As shown by the figures 
(figs. 1, 4 and 7), it has been broken along the posterior margin, but 
enough remains to give a good idea of its original appearance. It 
measures 2.75x2x3mm. If this is the specimen mentioned by 
Smith, and is “about two thirds ” grown, the shell represented by 
figs. 2, 5 and 8 is not far from being fully matured. The shape of 
this specimen is quite different from that of the “ typical ” shell, 
owing probably to the difference in the size of the septum. The re- 
semblance in outline between it and the non-septate specimen figured 
is quite strong, as shown by figures 4 and 6. 

This species is apparently quite distinct from both G. meekiana and 
G. californica, being characterized by its larger and more widely-ex- 
panded secondary growth. More material showing the mature form 
is very desirable, and it is to be hoped that collectors resident on 
Long Island will make its rediscovery a matter of special consid- 
eration. 


MOLLUSCAN FAUNA OF MONTEREY BAY, CALIFORNIA. 


BY S. 8S. BERRY. 


During the summer of 1906, the writer attended a six weeks’ ses- 
sion of the Marine Biological Laboratory of Stanford University, at 
Pacific Grove, California. While there considerable attention was 


18 THE NAUTILUS. 


given to molluscan life in particular and an extremely interesting 
collection was made of the different forms. 3894 species were ob- 
tained, a practically complete list of which follows. In addition to 
the mollusks, four species of brachiopods were collected. 

The major part of the collecting was done along the shore about 
Pacific Grove, especially at what is locally known as the ‘ Third 
Beach,” and an interesting expanse of rocks called the ‘ Big Tide 
Pool.” In addition to this, a number of dredging excursions were 
undertaken with the aid of a gasoline launch, which resulted very 
successfully. Most of the dredging was done in quite shallow water, 
although one trip was made toa point off Moss Landing near the 
middle of the bay. On this occasion we twice pulled up the dredge 
filled to the brim with living echinoderms of the genus Echinarach- 
nius, the common ‘sand-dollar,”” some two bushels in all. All of 
the mollusca collected on such occasions were given over to the 
writer, and his sincere thanks are due to Professor George Clinton 
Price, in charge of the laboratory, to Mr. Frank A. Woodworth, of 
Pacific Grove, and to many of his fellow-students for much valuable 
aid in the way of numerous specimens, pertinent suggestions and 
help of every description in the preparation of this paper. 

The writer is also greatly indebted to Dr. William H. Dall and 
Mr. Paul Bartch, of the United States National Museum, who 
kindly determined all doubtful material and who have now in hand 
the description of the many new or undescribed species found. The 
new species are marked with an asterisk. 


BRACHIOPODA. 


Glottidia albida Hinds. Several living specimens were obtained 
at from twelve to forty fathoms’ depth. 

Terebratulina caput-serpentis Linné. A few very young speci- 
mens, presumably of this species, were dredged. Adult specimens 
are occasionally brought in front deeper water by the fishermen, 
usually attached to coral. They are of the form which used to be 
known as var, unguicula Carpenter. 

Terebratulina transversa Dall. A few poor specimens were dredged 
at various depths, adhering to fragments of hard blue clay, shells, etc. 

Laqueus californicus Koch. We obtained no good specimens of 
this handsome brachiopod, but I saw numbers of fine ones which had 
been brought in by the fishermen. 


\% 
& 
* 
~ 
.™ 
— « J : 
; < 


THE NAUTILUS XXI PLATE Til. 


8 


4 


HENDERSON : POLYGYRA SOELNERI. 
PILSBRY: MEXICAN LAND SHELLS. 


THE NAUTILUS XXI. PLATE IV. 


WALKER: NOTES ON GUNDLACHIA. 


THE NAUTILUS. 19 


MOLLUSCA. 


Nucula belloti A. Adams. One live specimen from about 40 
fathoms. 

Leda taphria Dall. Many empty valves and a few small live spe- 
cimens were obtained almost everywhere that we dredged in the bay. 
12 to 40 fathoms. 

Leda hamata Carpenter. Occasionally found with.the preceding. 

Barbatia gradata Sowerby. Living; 12 fathoms. 

Glycimeris intermedia Broderip. No living specimens were ob- 
tained, but fresh valves were dredged in twelve fathoms of water. 

Philobrya setosa Carpenter. 12 fathoms. Found attached by its 
byssus to bunches of coralline, which it closely resembles in color 
and is exceedingly difficult to distinguish. Not rare, and many were 
doubtless thrown away before we discovered the habitat of this tiny 
but none the less interesting mollusk. 

Mytilus californianus Conrad. This animal covers the rocks just 
above the low-water mark and may be gathered by the tubful, if one 
is willing to risk the almost certain wetting he will get, if he clam- 
bers too far out on the exposed headlands, which are the mussel’s 
favorite haunts. 

Septifer bifurcatus Reeve. Not rare between tides. 

Modiolus fornicatus Carpenter. 12 to 40 fathoms. 

Modiolus rectus Conr. 20 fathoms. 

Modiolus rectus var. flabellatus Gould. One enormous specimen of 
this variety was obtained which had been brought in by the fisher- 
men. It far exceeds in size any other Mytilid in my cabinet. 

Adula falcata Gould. Living in the hard blue clay with other 
borers. 12 fathoms. 

Lithophagus plumula Hanley. With the above; not uncommon. 

Crenella divaricata Orbigny. 25 fathoms. 

Pecten hastatus Sowerby. 12-40 fathoms. No very large or 
brightly-colored specimens were obtained. 

Pecten hericeus Gould. One fine valve came up in the dredge 
from the blue clay region off Del Monte. 12 fathoms. 

Pecten diegensis Dall. Young specimens were dredged with P. 
hericeus and P. hastatus. The fishermen sometimes bring in beau- 
tiful adult specimens from the coral banks. 

Pecten (Hinnites) giganteus Gray. A few were found at low-tide 
attached to the under surfaces of rocks. At the great Tide Pool, 


20 THE NAUTILUS. 


where a good ‘‘minus”’ tide lays bare several acres of rocks and 
weeds, and which teems with all sorts of marine life, this species 
seems fairly common. 

Lima dehiscens Conrad. Living; 12 fathoms. 

Monia macroschisma Deshayes. Living; from shore line to 12 
fathoms. 

Cardita subquadrata Carpenter. Living ; shore line to 12 fathoms. 

Milneria minima Dall. 12 fathoms; not common, as we found it. 

Kellia laperousii Deshayes. Found living on shore and also 
dredged at 12 fathoms. 

With it occurs the following : 

Kellia suborbicularis Montagu. 

Rochfortia tumida Carpenter. Shore line to 40 fathoms. 

Diplodonta orbella Gould. Valves were found on the beach and 
the species was dredged at 25 fathoms. 

Phacoides californicus Conrad. Low-tide to 40 fathoms. Fairly 
common. 

Phacoides approximatus Dall. 40 fathoms. 

Phacoides annulatus Reeve. One valve was dredged at a depth 
of about 25 fathoms. 

Chama pellucida Sowerby. Low-tide to 12 fathoms. 

Cardium quadrigenarium Conrad. 12 fathoms; only a few very 
young valves found. 

*Cardium fucanum Dall. One live specimen and several valves 
dredged at 20 fathoms. It is notable that C. corbis Mart. was not 
obtained. See description in Naurtitvs, XX, p. 111. 

Protocardia centifilosa Carpenter. Living; 12 to 30 fathoms. 

Pisidium occidentale Newcomb. Found in numbers in an old 
watering-trough at Pacific Grove. 

Transennella tantilla Gould. Living ; between tides. 

Tivela stultorum Mawe. Between tides. 

Tivela(?) marginata Cpr. One valve, found between tides, was 
thus identified at the National Museum. 

Saxidomus nuttalli Conrad. 40 fathoms. 

Marcia subdiaphana Carpenter. 25 fathoms; valves only. 

Paphia staminea Conr. 

Paphia staminea var. petiti Deshayes. 

Paphia staminea var. orbella Carpenter. All found nestling among 
the rocks between tides. 


THE NAUTILUS. 21 


Paphia tenerrima Carpenter. 12 fathoms ; immature valves only. 

Venerupis lamellifera Conrad. Some very pretty specimens of 
this species were found from the shore line down to 12 fathoms. 

Psephidea ovalis Dall. 12 fathoms. | 

Petricola carditoides Conrad. 12 fathoms; in the blue clay. 

Petricola californica Conrad. 25 fathoms; valves only. 

Psammobia californica Conrad. Low-tide to 12 fathoms; not 
common. 

Tellina salmonea Carpenter. 40 fathoms; rare. 

Macoma yoldiformis Carpenter. 40 fathoms; off Moss Landing. 
One specimen. 

Semele rubropicta Dall. 25 fathoms; valves only. 

Semele pulchra Sowerby. 12 fathoms; valves only. 

Cumingia californica Conrad. Not uncommon at low-tide. 

Cooperella scintilliformis Carpenter. 40 fathoms; one live but 
immature specimen. 

Sphenia californica Conrad. Low-tide to 15 fathoms ; not rare. 

Corbula luteola Cpr. 15 fathoms, 

Saxicava arctica Linné, Low-tide to 12 fathoms. 

Saxicava pholadis Linné. Low-tide to 12 fathoms. Several very 
large specimens were found in the abandoned holes of borers. 

Siliqua lucida Conrad. Living; 15 fathoms; rare. 

Solen sicarius Gould. Living; 40 fathoms. 

Spisula planulata Conrad. Very common at about 12 fathoms’ 
depth. 

Spisula catilliformis Conr. One valve only; 40 fathoms; off 
Moss Landing. 

Lyonsia nitida Conrad. 12 fathoms; rare. 

Lyonsia spongiophila Dall. Low-tide to 12 fathoms; quite rare. 

Mytilimeria nuttalli Conrad. Found at low-tide curiously embedded 
in sponges or colonies of ascidians. The live animals would be passed 
over and found rarely, except by accident, were it not for the distor- 
tion in the masses of their hosts caused by their presence, or for the 
oddly-shaped openings which permit the sea water to reach them. 

Entodesma saxicola Baird. Among the rocks at low-tide. 

Parapholas californicus Conrad. 12 fathoms. At this depth the 
dredge often brought up large fragments of a hard, blue clay which, 
upon examination, was found to be filled with dead and living spe- 
cimens of this and other boring mollusks, such as Petricola, Adula, 


22 THE NAUTILUS. 


Pholadidea, etc. Other crevices of this same blue clay yielded Ocin- 
ebra and many of the finest Chitons obtained. 

Pholadidea penita Conrad. Found with the above. 

Pholadidea sagitta Stearns. Found with the above and at a depth 
of 40 fathoms off Moss Landing. 

Pholadidea parva Tryon. In Haliotts shells. 

Pholadidea (Netastomella) darwinit Sowerby. 12 fathoms; in the 
blue clay. 

Dentalium neohexagonum Pilsbry. 12 fathoms, 

Dentalium rectius Carpenter (?). 12 fathoms. One beautiful spe- 
cimen over an inch long is probably referable to this species. 

Cadulus nitentior Carpenter. 12 fathoms; not uncommon. 

Tornatina harpa Dall. 12 to 40 fathoms. 

(To be concluded.) 


A NEW CERITHIUM FROM THE FLORIDA KEYS. 


BY WILLIAM HEALY DALL. 


CERITHIUM STANTONI N. sp. 

Shell solid, acute, conic, the nine whorls rapidly enlarging ; sculp- 
ture of 7-9 strong, rounded, axial ribs extending from the suture to 
the periphery, crossed by small, sharply elevated, subequal, some 
times alternate, close set spiral threads which cover the whole shell ; 
these threads behind the periphery are white, the strise between them 
tend to be blackish-brown except on the most prominent part of the 
ribs where they are yellowish cream color; from the periphery to 
the canal the threads as well as the interspaces are brown, and on 
the canal become lighter again, but are probably more or less var- 
iable as in other species of the genus; last whorl with a single varix 
opposite the outer lip; aperture semi-lunar, on the body callous, 
with a strong subsutural ridge setting off a posterior sulcus; the 
pillar callous, twisted, very short, smooth; the outer lip thickened, 
reflected, internally sharply lirate ; interior white. Lon. of shell 35, 
of last whorl 16, of aperture 12, max. diam. of shell 17, of aperture 
6 mm. 

Shoals near St. George Cay, Belize, Rev. W. A. Stanton 
(150294); Florida Keys (110469). 


THE NAUTILUS. 23 


A hermit crab fragment retaining its coloration, sent by Father 
Stanton, was long believed to be due to foreign ballast, as nothing 
of the sort was known from the West Indies. The recent acquisi- 
tion of a bleached but entire specimen from the Florida Keys has 
confirmed its American habitat. 

The species is nearest the ©. guiniacum Philippi (1849) from the 
Gaboon, West Africa, but is more conical, and wider in the last 
whorl, and rather larger. The sharp regular striation and few large 
rounded ribs are its most striking characteristics. 


AMONG THE CEPHALOPODS. 


BY R. E. C, STEARNS. 


According to the papers, the big steamship Northwestern that 
went ashore last March on La Touche Island, southeastern Alaska, 
has been floated and is now at Valdez. 

Divers making the survey of the bottom of the sea where the 
steamer rested, were driven away repeatedly by “great cuttlefish, 
which swarmed in the vicinity of the wreck,” It was feared that 
these ‘sea monsters’’ would prevent the saving of the vessel, but 
the divers proved game, made the necessary survey, drilled the holes 
for the dynamite, and laid the charge which blew to atoms the rock 
that had trapped the steamer, without damaging the vessel. 

May 3, 1907. 


PUBLICATIONS RECEIVED. 


Tue Mo.tiusca or CoLorano (University of Colorado Studies, 
vol. iv, no. 2, 3, Feb. and Apr., 1907). By Junius Henderson. 
This useful addition to the series of state hand-books of mollusks 
gives an epitome of earlier work by Ingersoll, Cockerell and others, 
with substantial additions to the list of species (some 25 being here 
first reported from Colorado), and to the locality records. A key to 
species and a bibliography are given. Most of the species are illus- 
trated, the Unionide by excellent original figures, the snails by cuts 


24 THE NAUTILUS. 


borrowed from Binney’s works. ‘‘ The study of the influence of 
altitude upon mollusks in this region has given chiefly negative re- 
sults. Instead of dwarfing the species, as in Montana and other 
regions where the cold of high altitudes is more intense, the higher 
altitudes seem more favorable to land snails than lower levels, be- 
cause of the increased humidity. The finest specimens of Oreohelix 
strigosa and Vitrina alaskana found have been at 11,000 and 9,300 
feet respectively.” ‘Among bivalves we have found Pisidia at 
11,000 feet, Calyculina at 8,500 feet.” 

Regarding some of the older records the author remarks upon 
‘‘ doubts as to the accuracy of identification in many instances in the 
early reports.”’ Such difficulties are always encountered, and their 
removal costs much time and labor. The identification of ‘‘ Zont- 
toides conspectus,” Succinea salleana, nuttalliana, rusticana, Ancylus 
fragilis and caurinus and Physa heterostropha should especially be 
looked into. The paper will form an excellent basis for further 
work in Colorado, and will be useful for work anywhere in the 
Rockies. 


THe Resuuits or Deep-seA INVESTIGATION IN THE TASMAN 
Sea. MoLiusca FROM EIGHTY FATHOMS OFF NARRABEEN. By 
C. Hepiey (Records of the Australian Museum, vi, pp. 283-304, 
pls. 54-56). This paper contains descriptions of 18 new species, 
including a new genus, Corvareus related to Lasea. The species are 
all beautifully illustrated. 


NOTES. 


Errata.—The differences between the two New England species 
of Acemaea. The Nautitus, May, 1907. About half way down 


the 3d page: ‘ ... radula of an adult shell of a/veus are perhaps 
the squarest of all, fig. 4.’’ This should be ‘fig. 3.” Also several 
lines farther down “ .. . nearly at right angles to the next tooth 


and the cusp of (U) faces the center of the lingual membrane (L).”’ 
The (L) should be after the word ‘ tooth.” 
Henry JACKSON, JR. 


ete INAUTILUS. 


Vou. XXI. JULY, 1907. No. 3. 


DESCRIPTION OF A NEW MEXICAN PACHYCHEILUS. 
BY ANSON A. HINKLEY. 


PACHYCHEILUS VALLESENSIS n. sp. PI. 5, figs. 1-10. 


Shell conic, solid, smooth; suture impressed ; aperture widely 
ovate, circular at the base, obtusely angular above, purple within ; 
whorls 7, convex ; on young and also well preserved specimens the 
apical ones are slightly carinate or striate; spire about half the 
length of the shell. 

Operculum corneous, spiral, nucleus subcentral; when viewed from 
above has a little resemblance to a small Planorbis. 

Length 32, diam. 16 mm. 

Length 33, diam. 19 mm. 

Habitat. Valles river, Valles, State of San Luis Potosi, Mexico. 

‘*« This species resembles short forms of P. /evissimus, from which 
it differs by the absence of fine spiral lines, the more heavily 
calloused columellar lip, and the darker interior. No other Pachy- 
cheilus has been found so far north.” * 

The species is named from the river in which it is the most plenti- 
ful mollusk. Figure 1 may be considered the type, though its size 
is above the average. There is often a flattening of the body whorl 
and occasionally a constriction or shallow groove, as on some of the 
Pleurocera. Mature specimens usually show 6 whorls; when the 
spire is well preserved, as in fig. 8 and fig. 9, there are 8. In young 
specimens the aperture is angular below, see fig. 5. In mature 


1Note from Dr, H, A. Pilsbry. The plate illustrating this species will ap- 
pear in the next number. 


26 THE NAUTILUS. 


specimens the. callous deposit on the columella is heavy, and where 
it meets the labium above, it is very thick. This is well shown in | 
figs. 3 and 8; within the aperture the outer lip is bordered by a 
lighter-colored or white zone. 

All mature specimens and many of the immature ones are more or 
less covered with a deposit of calcareous matter, which is often so 
thick as to mislead as to the form of the shell, see figs. 4 and 9. 

Individuals are very numerous in some places, and scattering ones 
ean be found almost anywhere in the river. The very young were 
found where there was little or no current, on sand or mud bottom, 
or on roots and plants at the water’s edge ; older ones were common 
on rocks or the river bed where the current was strong. 

At two places the alluvial soil, though above any indication of 
high-water, contained large numbers of this species, reminding the 
writer of the remains of Tulotoma magnifica at places along the 
Coosa river in Alabama. 

Figures 8 and 9 are from the stream of a spring, and are more 
perfect in the spire than those from the river, fig. 8 has the deposit 
all removed, and fig. 9 has enough removed to show the spire. Fig. 
10 is not mature; it will be seen that the heavy columellar callus is 
not yet formed. Fig. 2 is an extra large one; it and figs. 3 and 7 
are more than usually inflated. Much smaller ones were found than 
the one shown in fig. 5. 


DESCRIPTIONS OF NEW MEXICAN LAND SHELLS. 


BY HENRY A. PILSBRY. 


A full account of the mollusks collected by Mr. A. A. Hinkley in 
the vicinity of Tampico and in the State of San Luis Potosi will 
later be submitted by him; meantime some of the new forms are 
described below. 


Polygyra (?) martensiana n. sp. PI. V, figs. 11, 12. 


The shell is rather thin, depressed, about the shape of P. texasiana, 
umbilicate, the umbilicus rapidly contracting within; surface glossy, 
pale brownish-corneous with a faint brown band above the periphery, 
weakly marked with unequal growth-lines. Upper surface nearly 
flat, the spire being very low conic; periphery above the middle, the 
base convex. Whorls 44 to 54, convex, slowly increasing, the first 


THE NAUTILUS. 27 


smooth, the last whorl very indistinctly subangular in front of the 
aperture, elsewhere rounded peripherally, slightly descending in 
front. The aperture is very oblique, wider than high, about one- 
fourth of its circumference is excised by the preceding whorl; peri- 
stome evenly, rather narrowly reflexed throughout, slightly dilated 
at the axial termination; parietal callus thin and transparent. 

Alt. 6, diam. 11, width of umbilicus 2 mm. 

Alt. 8.8, diam. 4.8 mm. 

Tampico, Mexico, type loc.; also Valles, farther inland, in the 
State of San Luis Potosi. 

This species is remarkable for the complete absence of teeth in the 
aperture, in other respects having a general resemblance to Poly- 
gyras of the texasiana group. Its generic position can be decided 
only by examination of the soft anatomy. It may possibly be a 
Praticolella, Six examples were taken at Tampico, one at Valles. 
Named for the late Professor E. von Martens. 


Holospira hinkleyi n. sp. Pi. ILI, figs. 3, 4. 

The shell is fusiform, widest above the middle, at the seventh 
whorl, above which it tapers rapidly and below slowly; whitish. 
Whorls nearly 10, the first smooth, projecting, flattened above, with 
a central dimple, the second whorl narrower, very convex, smooth; 
following whorls sculptured with very oblique well raised threads, 
rather sparse on the early whorls, then more numerous, but sep- 
arated by spaces wider than the threads. The whorls of the cone 
are somewhat flattened, except near the lower suture where they are 
abruptly curved, and the threads are a little enlarged. On the 
penult and last whorls the threads become strongly arcuate ; the 
whorls are convex, with very deep sutures. The latter part of the 
last whorl becomes free and descends deeply. It is somewhat flat- 
tened on the upper and outer faces, elsewhere rounded. The aper- 
ture is transversely ovate, brown within, with a continuous, very 
_ broadly expanded, flattened, thin peristome. Internally there are 
four lamine: a strong parietal which arises in the latter part of the 
penult and continues to where the last whorl becomes free; a shorter 
columellar, in the median part of the last whorl; a high basal lamina 
in the first half of the last whorl, and a thin but well-developed 
palatal lamina, below the middle of the outer wall, in the first half 
of the last whorl. 


28 THE NAUTILUS. 


Length 9.8, diam. 2.9 mm. 

El Abra, State of San Luis Potosi, Mexico, collected by A. A. 
Hinkley. 

This species is well characterized by the freely descending last 
whorl, the ‘“‘ neck ”’ being much longer than in any other member of 
the typical subgenus of Holospira. The four internal lamine are 
well developed, and situated somewhat lower than in H. goldfusst. 
Eight specimens were taken, part of them immature. 


ZONITOIDES PENTAGYRA n. sp. PI. III, figs. 6, 7, 8. 


The shell is slightly larger than Z. minuscula, umbilicate, the 
width of the umbilicus contained between 4 and 44 times in that of 
the shell; thin, whitish in the dead specimens seen, similar in color 
to Z. minuscula. Surface glossy, marked with very weak growth- 
lines, and with very faint fine spiral strize on the base, more distinct 
in immature shells. 

Spire quite convex. Whorls 5, narrow and very slowly increasing, 
convex, the last well rounded peripherally. Aperture somewhat 
oblique, quite small, and narrowly lunate. Peristome simple as usual. 

Alt. 1.4, diam. 2.7 mm. 

Tampico, in river drift, with Z. minuscula and Z. singleyana and 
various Pupillide, etc. Type no. 93796 A. N. S. P., from Mr. 
Hinkley’s collection. 

This species is readily distinguished from the two associated forms 
of Zonitoides by the closely coiled whorls and the small, narrowly 
lunate aperture. It has some resemblance to Pyenogyra berendti, of 
the region of Vera Cruz. It is comparatively rare in the river 
debris, while Z. minuscula and singleyana occur in copious quantity. 


SpPrRaXIS TAMPICOENSIS Pilsbry. Pl. III, fig. 5. 


Drift debris at Tampico. This very slender shell has been de- 
scribed in the current number of the Manual of Conchology, p. 24. 


CECcILIOIDES (CACILIANOPSIS) JOD n. sp. 


The shell is imperforate, very minute, oblong, slowly tapering to 
an obtuse summit, whitish (probably clear corneous when living), 
smooth and glossy. Whorls 44, slightly convex. Aperture less 
than half the total length, piriform, shaped like that of Huwglandina, 
the outer lip arcuate, thin, columella very concave, covered with a 
thin callous film, distinctly truncate at the base. Length 2.1, 
diam. 1 mm. 


THE NAUTILUS. 29 


Tampico, in river debris, abundant. 

This tiny snail seems to be at least subgenerically distinct from 
Cecilianella ( Cecilioides) by the very obtuse summit and short wide 
spire. It is closely related to A. consobrina Orb. 


IN RE CYTHEREA PETECHIALIS OF CARPENTER’S MAZATLAN 
CATALOGUE. 


BY ROBERT E. C. STEARNS. 


In Dr. Dall’s ‘‘Synopsis of the Family Veneride,’’* etc., he re- 
marks ‘‘Oytherea petechialis Lamarck, 1818, is listed by Carpenter 
from Mazatlan having been found among the Reigen shells, but it is 
certainly exotic, none having appeared from there for half a cen- 
tury.” 

It is not unlikely that the shell collected by Reigen was an ex- 
ample of the exceedingly rare and handsome variety of Macrocallista 
( Chionella) squalida, the color markings of which are suggestive of 
the Asiatic petechialis. In my paper on “ The Shells of the Tres 
Marias,’’’ etc., etc., under Cytherea (Callista) chionxa I refer to the 
matter. I have never seen more than-half a dozen examples of the 
variety. The National Museum contains if I am not mistaken two 
or more specimens. 

I am quite familiar with sqgualida as well as petechialis having had 
a great many of both species, and for many years distributed both 
freely in the course of exchanges. The West Coast species is com- 
mon in Secammon’s Lagoon with Macron -dithiops Reeve (= M. 
Kellettti Hinds) and elsewhere on both sides of the peninsula and in 
the Gulf of California. 


THE U. 8. COAST SURVEY EXPEDITION TO ALASKA IN THE YEAR 1867. 


BY ROBERT E. C. STEARNS. 


If not a stroke of genius, it was a timely inspiration that caused 
Dr. C. Hart Merriam to expand what might have been hardly more 
than a notable pleasure excursion into an important scientific expe- 
dition. Probably never before were so many eminent scientific men 
brought together, and under such agreeable circumstances, as formed 


1Proc. U. S. Nat. Museum, p, 408, vol. xxvi, 1902. 
2Proc. U.S. Nat. Museum, p. 153, vol. xvii, 1894. 


30 ‘THE NAUTILUS. 


the party that went north on the steamer G. W. Elder, constituting 
the Harriman Alaska Expedition. 

It was also a happy thought that led Dr. Dall to utilize the oppor- 
tunity for publication in the Harriman Expedition Series, of his 
volume on the “ Land and Fresh-Water Mollusks,’’ which has been 
appropriately reviewed by Dr. Pilsbry.’ It will doubtless be a 
standard reference book for the next quarter of a century. 

The number of species collected by the expedition is nowhere 
stated. With a copy of Dr. Dall’s volume before me, memory re- 
calls what was an important event in its time, forty years ago, the 
U.S. Coast Survey Expedition to Alaska,’ in charge of Professor 
George Davidson, which left San Francisco, July 21, 1867, and re- 
turning, arrived in San Francisco on the following 18th of November. 

In this, the first expedition under the flag in connection with the 
acquisition of Alaska, or perhaps more accurately, Russian America, 
provision was made for biological investigation, hence my special 
interest in it, and further, for the reason that two members of the 
biological staff were kindly appointed by Professor Davidson on my 
suggestion. Mr. W. G. W. Harford was the conchologist and gen- 
eral collector. ‘The season proved unfavorable, the weather being 
bad, and the collection of mollusks, therefore, in number of species, 
was small. Of the marine forms 69 species were taken; the 
Buccinide were determined by Dr. William Stimpson, the rest by 
the writer. The few land shells as named below, were identified by 
Dr. J. G. Cooper. 

Felix columbiana Lea, Sitka; Chilcot River, 59° 9’ N. 

Helix vancouverensis Lea, Sitka; Vancouver Island. 

Helix ruderata Stud., Ounalaska. 

Helix fulva Drap., Sitka; Ounalaska. 

Vitrina pellucida Mull. (?). 

Zua lubrica Mull., Sitka; Kodiak. 

The list as it appeared in the Coast Survey volume, contained 
many typographical errors; it was subsequently revised and pub- 
lished by me.° 


1The Nautitus, Vol. XIX, December, 1905. 

2 Report of the Supt. U.S. Coast Survey, during the year 1867. Appendix 
No. 18, pp. 187-329, Washington, D, C., 1869. 

3 Shells collected by the U. S, Coast Survey Expedition to Alaska in the year 
1867. Proc. Cal, Acad, Nat. Sciences, Dec. 2, 1867, 


THE NAUTILUS. 31 


This and the other paper’ mentioned in the foot-note, which con- 
tained a few pages on the circumboreal distribution of molluscan 
species, were omitted from the bibliography of Dr. Dall’s volume. 


A FEW NOTES ON SAY’S EARLY WRITINGS AND SPECIES. 


BY V. STERKI. 


Again and again, these last years, I have looked over a copy of 
T. Say’s “ Conchology”’ in the “ British Encyclopedia” (Nichol- 
son’s),” and found a few things which caught my attention particu- 
larly and appear worth mentioning and discussing if compared with 
our present interpretation. It is unnecessary to say that the re- 
marks are not written for the sake of criticizing the father of con- 
chology in this country. His difficulties were doubtless great with 
respect to both working up his material and having the articles 
printed according to his intentions. 

Of the introduction and general description, I would refer only to 
one point or two. Say justly protests against the view then prev- 
alent, that the beaks of a bivalve mark the under side, stating that 
in the natural position of the mussel they are above. At the same 
time, what we now regard as anterior and posterior parts, he desig- 
nates as the right and left sides, evidently from lack of knowledge 
of the organization of the soft parts. Hence also the terms: ‘ equi- 
lateral and ingquilateral,”’ for which we now must say ‘‘ equipartite 
and inequipartite.’”’ He calls the distance from the beaks to the 
opposite or-‘‘ posterior’ margin as length, the one at right angles to 
it as breadth, as some noted conchologists have done up to recent 
years. It is interesting to note, however, that soon he approached 
a more correct conception, even in the same article: in descriptions, 
e. g.,0f Unio ovatus and ochraceus, and Anodonta marginata, he 
speaks of a front and a posterior end, only mistakes them for each 
other, a view which also has been held tenaciously for a long time 
by many conchologists. In this way apparent contradictions are 


10n the History and Distribution of the Fresh-water Mussels, ete. Proc, 
Cal, Acad, Sciences, Nov. 20, 1882. 

2 Probably of 1818 or 1819; there is no date, and nothing referring to the 
time of publication, except that the author mentions his ‘ detached essays in 
the Journ. Acad. Nat. Sc.,’’ and to the ‘“‘ former editions of this work,” 


32 THE NAUTILUS. 


easily explained. That Say terms primary teeth what we now call 
cardinals or pseudocardinals, may be mentioned by the way. 

As to the arrangement it is interesting to note that the first genus 
is Helix (made up of our Polygyra, Zonitidx, Vallonia, Strobilops, 
Patula | Pyramidula], Helicodiscus, variously mixed up); then fol- 
low: Polygyra (P.s. str.), Oligyra (= Helicina), Planorbis, Lymnzxa 
(including Physa), Suecinea,’ Cyclostoma (Valvata), Ancylus, Palu- 

These things are mentioned just for an historical reminiscence, 
and also to show the changes brought on by anatomical examination 
and more minute distinction. 

Some notes on species : 

Helix lineata. Reference is made to Journ. Acad. Nat. Se., I, 
p- 18, but no mention of Planorbis purallelus. 

Succinea ovalis, Alt. 11.25, aperture alt. 8.75 mill.? Say states 
that the species is common ; how is it, then, that no larger specimens 
were found, if ovalis were identical with obliqua? and that Say de- 
scribed the latter as new, only a few years later? (as 17.5 mill. 
high). A. Binney (Terr. Moll., I], p. 71) asserts that the two are 
identical, or varieties of the same species, yet does not use the older 
name; and he does not state whether there are any undoubtedly 
authentic ovalis Say on hand, giving evidence of the identity. In 
the absence of such, doubts should be permitted. Dr. Dall seems to 
have the same view. 

Unio crassus. From the description it is evident that not only 
several species are included under the name—as the author himself 
suspects—but that rather forms of Unio, resp. Quadrula are under- 
stood, including undulata Barnes,’ and probably tuberculata Raf. A 
description of Lamps. ligamentina would be quite different, and es- 
pecially so of the prevalent form of the Ohio river (= var. gibbus 
Simpson). The figure has resemblance to a female L. liga- 


1Yet he adds the remark: ‘‘ The characters of the inhabitant (— soft parts) 
are widely distinct from the animal of the Lymnza, and are somewhat allied 
to those of the inhabitants of the Helices.”’ 
dina (our Ammnicola, Pomatiopsis, Lioplax, Goniobasis, Vivipara, 
Campeloma), Pupa, Polyphemus (= Glandina), the bivalves: Unio, 
Alasmodonta, Anodonta, Cyclas, Cyrena. 


2Say gives the dimensions in inches; for convenience of comparing, they 
are reduced to millimeters. 


3 As even more evident from the description of U. plicata, following. 


THE NAUTILUS. 33 


mentina. Except eventually for that, U. erassus cannot be regarded 
as a synonym of the species named, and it would be best to drop the 
name. 

Unio plicata. Unfortunately, the author failed to cite the dimen- 
sions. To judge from the description and also the locality, Lake 
Erie, it seems that not the large ‘“‘ typical’ plicata of e. g., the Mis- 
sissippi and Ohio rivers was understood, but the well marked 
‘‘ variety,’’ known also e. g., from the Kankakee river. 

U. ochraceus. Description and figure evidently are drawn from a 
young, resp. adolescent specimen, two or three years old, and the 
differences as pointed out from cariosus (the figure represents a 
mature female) are mostly due to this fact. 

Cyclas similis. The description shows decidedly that the mussel 
understood is not what has been taken for Spheriwm simile, resp. 
G. suleatum Lam.; the size given is: long. 10, alt. 8.75 mill. Any 
specimen of G. sulcatum, 10 mill. long, is rather young, not ‘ sub- 
orbicular,”’ but elongate, and little inflated. The figure also, how- 
ever imperfect it may be, cannot represent a G. suleatum. The 
species described seems to be either G. striatinwn Lam, or stamineum 
Con., probably the former. The statement that ‘‘a specimen 
measured in length’ nearly three-fifths of an inch,’”’ makes it prob- 
able that a G. swleatum was mixed in. Whether there are any 
authentic specimens in a collection, and what they prove, I know 
not; but from what has been said, we will do well to revert to the 
name G. suleatum Lam., which seems well established. 

There are a number of typographical and other errors, and mis- 
takes in the article; e. g., under Paludina, three species are desig- 
nated as “ L.”: Subcarinata, Virginica, Vivipara; evidently the 
author had ranged them under Zymnea previously, and then forgot 
to change the genus initials. Under Anodonta marginata, pl. 3, 
fig. 3, is cited; evidently it should be fig. 5, although the dimensions 
do not agree exactly with the description, as they do with respect to 
other species. Helix thyroidus is described. What good reason is 
there now to spell thyroides, after the original spelling had been gen- 
erally adopted until 1850, and partly later? I allude to this, as 
compared with Planorbis exacuous, which is not in the article con- 
sidered, that Say himself changed, corrected, the nonsensical and 


1Probably altitude, in conformity with Say’s terminology; no ‘‘ breadth” is 
given. 


34 THE NAUTILUS. 


impossible word into exacutus, or others did, is enough to show 
that it was an error. The purpose of nomenclatural rules is to pre- 
vent mistakes and misunderstandings ; the means, to adhere to the 
original spelling, so far as consistent with sense. In the case of PI. 
exacutus for exacuous, there is no possibility of a mistake, and I, for 
one, shall write exacutus after this. 

In Say’s article there is under Cyrena: ‘Shell triagonally 
rounded ...,’* evidently an error; it should be “trigonally.”’ If 
this were in a name it would be perpetuated like ‘‘ exacuous.”’ 


MOLLUSCAN FAUNA OF MONTEREY BAY, CALIFORNIA. 
BY S. 8. BERRY. 


(Continued from p. 22.) 

Cylichna eximia Baird. 12 fathoms. 

Cylichna attonsa Carpenter. 28 fathoms; one young specimen. 

Tethys (= Aplysia) californica Cooper (?). The common sea- 
hare of Monterey Bay seems to differ somewhat from those of the 
southern part of the state, and may prove to be distinct when a care- 
ful anatomical examination has been made of both. The form ob- 
tained is quite common along the shore. It is large and of a brown 
color, irregularly blotched. 

Tethys (californica, var.?). A small red form was dredged at 12 
fathoms depth, which may or may not prove distinct from the shore 
form. At any rate, it is very different in appearance. 

Archidoris montereyensis Cooper. 25 fathoms. Whether one 
collects along the shore or dredges in the bay, the Nudibranchs 
form one of the most striking and characteristic features of marine 
life in the Monterey region. Neither individuals, nor species, nor 
even genera, are few in number, as the following incomplete list will 
show. For the identifications, Professor MacFarland’s careful paper 
on the Monterey Bay opisthobranchs (Bulletin of the Bureau of 
Fisheries, Vol. XXV) is the best work, and was constantly used by 
us as a text book in their study. It is beautifully illustrated, and 
should be in the library of every Pacific coast student. 

Anisodoris nobilis MacFarland. Very common at low tide. 

Rostanga pulchra MacFarland. <A few of these bright-red ani- 
mals found at low tide. 


THE NAUTILUS. 35 


Diaulula sandiegensis Cooper. Low tide. 

Cadlina marginata MacFarland. Very common from the shore 
line to 25 fathoms. 

Chromodoris (sp.?) One specimen dredged. A most elegant 
creature ; brilliant blue marked with yellow. It is now in the hands 
of Professor MacFarland for dissection and determination. 

Doriopsis fulva MacFarland. Shore line to 25 fathoms; very 
common. 

Oregires albopunctatus MacFarland. At low tide. 

Laila cockerelli MacFarland. A few found at low tide. 

Triopha carpenteri Stearns. Between tides; common. 

Triopha maculata MacFarland. Between tides; common. 

Polycera atra MacFarland. One specimen found at low tide. 

Acanthodoris brunnea MacFarland. 12 fathoms; one specimen. 

Hopkinsia rosacea MacFarland. A beautiful rosy pink in color, 
its body covered with long, tapering papillae, this is one of tle most 
exquisite beings imaginable. It is by no means an uncommon 
creature in the little rocky tide pools along the shore. 

Aeolid (sp.?). Numerous aeolids of many sorts were found along 
the shore and were dredged, particularly off Moss Landing. Some 
species were exquisitely beautiful in form and color, but they proved 
almost impossible to preserve and none were determined. 

Selenites duranti Newcomb. Several were found under bits of 
bark on Cypress Point. 

Vertigo (sp. undet.). Found rather commonly on Cypress Point. 

Punetum conspectum Bland. Cypress Point ; one specimen. 

Punctum conspectum, var. pasadeneé Pilsbry. Near Pacific Grove; 
one specimen. 

Helix aspersa Miller. Pacific Grove ; in gardens. 

Epiphragmophora californiensis Lea. Cypress Point; rather 
uncommon there at least. 

Epiphragmophora dupetithouarsi Deshayes. Cypress Point, ete. 
Common, as land shells go in California. One curious specimen 
obtained is half albino. 

Stphonaria peltoides Carpenter. Found at low tide, and live ones 
were also dredged at 12 fathoms, to my great surprise. 

Gadinia reticulata Sowerby. At low tide; Santa Cruz, ete. 

Physa heterostropha Say (?). Santa Cruz, ete. 

Planorbis parvus Say. Del Monte pond. 

(To be concluded.) 


36 THE NAUTILUS. 


NOTES. 


Note on Cypr#a Coxent Cox.—Having recently had the good 
fortune to obtain a specimen of this rare and interesting species, 
my attention is directed to certain particulars in which it differs 
materially from the only figure and description at present available 
to me—those contained in Mr. Roberts’ monograph in Tryon’s 
Manual of Conchology. This specimen, which appears to be some- 
what worn, has the irregular chestnut-brown markings described as 
characteristic of the species, but is otherwise entirely white. In- 
stead, however, of being a tapering shell, as shown in the figure 
referred to, or of being similar to C. ertbraria, to which it has been 
compared by Mr. Brazier and Mr. Roberts, it is cylindrical, opaque 
and heavy in appearance, and its form throughout is almost precisely 
that of C. rhinoceros Souv. (C. interrupta Gray, var.?), the white 
base and margins being the same, but the columellar teeth extending 
further across the base, as mentioned by Mr. Melvill in his “ Survey 
of the Genus Cyprea”’ (p. 230). This species should not be con- 
fused with C. Cort Braz., a thin yellowish or cream-colored shell, 
which Dr. Cox believes (MS. letter) is not entitled to specific rank 
and which Mr. Roberts thinks may have been based upon a young 
specimen of C. errones.—F RED. L. Burton. 


PUBLICATIONS RECEIVED. 


THe ConcHoLocicat MaGazine: A monthly devoted to the 
study of Japanese shells. Published by Y. Hirase, Kyoto, Japan.’ 
A new expression of the activity of our neighbors across the Pacific 
is before us in this handsomely printed and illustrated Magazine 
edited by Mr. Hirase, of which four numbers have come to hand. 
It is a gratifying evidence that the progress of Japan is to be 
intellectual as well as material. The April number contains 
articles on collecting shells, the philology of shell names. Japanese 
marine mollusks, the classification of Japanese land shells, etc., etc., 
a total of 34 pages and three excellent phototype plates. The text 
is of course in Japanese, but the plates make it interesting to con- 
chologists of the Western World, and should give the Magazine a 
circulation outside of Japan among all interested in Pacific shells. 
The Navriuus heartily welcomes the new Conchological Magazine. 


1Subscription to foreign countries $1.50 per annum, 


iY 


oe INAUTILUS. 


Von. XXI. AUGUST, 1907. No. 4. 


A NEW SUBSPECIES OF POLYGYRA MULTILINEATA. 
BY JAS. H. FERRISS. 


POLYGYRA MULTILINEATA CHADWICKI DN. var. 


This is a dentate form. In a lot of thirty specimens twenty-five 
had a lunate parietal tooth or thickening of the callus about three 
mm, in length extending obliquely across the aperture nearer the 
outer lip. In other respects, compared to multilineata, the shell is 
heavier, the spire higher, the whorls more ventricose, the suture 
deeper ; it is moderately polished, the sculpturing is less acute, the 
furrows shallow ; the aperture is less oblique, less lunate; the peri- 
stome thicker, face more rounded, contracting the aperture more. 
In some examples the parietal callus is a mere ribbon in front of the 
aperture d mm. in width, not extending within the aperture itself. 
The greatest diameter 21 mm., alt. 13 mm. 

In color these run from yellowish-white to light cherry. In five 
specimens only were the revolving lines observed, and these faintly. 
In general appearance it is quite like the Arkansas mountain forms, 
bearing a neighborly likeness to albolabris allent, indianorum, bin- 
neyana and edentata. It was collected on the banks of the Kaw 
river, near Lawrence, Kansas, by W. C. Chadwick, of Cleveland, 
Ohio, and is named in his honor. 

In the Illinois river valley we have two sizes of mu/tilineata, one in 
the open bog measuring from 18 to 23 mm. in diameter, the other 
in wet timber land measuring from 25 to 28 mm. in diameter, well 
supplied with revolving lines. The smaller size varies in color from 


38 THE NAUTILUS. 


a solid cherry-brown to white, and when lined there is a wide varia- 
tion in the number of lines. 


NEW LAND AND FRESH-WATER SHELLS FROM MEXICO. 


BY H. A. PILSBRY AND A. A. HINKLEY. 


PoLyGyRA POLITA n. sp. PI. 5, fig. 11. 


The shell is narrowly perforate, with a rather long rimation, dis- 
coidal, the spire very slightly convex; whitish corneous (probably 
partially bleached), glossy, with faint sculpture of weak growth lines 
only. The whorls increase slowly; the last one is rounded at the 
periphery and descends abruptly at the aperture; it is constricted 
and opaque white behind the lip, and there is a short oblique groove 
within the umbilicus. Aperture very oblique. The peristome is 
thick, expanded outwardly, reflexed below, the ends connected by a 


rather thick callus, which bears a rather long, 


obliquely V-shaped 
tooth, the upper branch of which, though not so high as the lower, 
is well developed and connects with the peristome. There are two 
strong lip teeth, the upper one peripheral in position, tubercular, the 
lower one basal, compressed, entering across the lip-callus; a low, 
rather sharp lip-callus, more immersed at its lower end, is above the 
upper tooth. 

Alt. 4, diam. 9.6 mm.; width of umbilicus 2.6 mm.; whorls 5. 

Tampico, in river débris, coll. by A. A. Hinkley. 

This species closely resembles P. texasiana hyperolia Pils. and 
Ferr., but it differs by the wider constriction or furrow behind the 
peristome, and the decidedly more deeply immersed upper lip tooth. 
The umbilical rimation is also longer than usual in that form. 


POLYGYRA AULACOMPHALA n. sp. PI. 5, fig. 12. 


The shell is very narrowly perforate, with a rather long rimation, 
subdiscoidal, with low spire; whitish corneous (probably bleached), 
glossy, faintly, finely striate above, smoother below, where faint 
traces of spiral striz are visible. Whorls slowly increasing, the first 
projecting slightly, the last rounded peripherally, descending a little 
in front, constricted behind the outer and basal margins of the peri- 
stome, with shallow pits in these positions. A long, deep furrow on 


THE NAUTILUS. 39 


the last whorl within the umbilicus runs parallel to the rimation, 
but does not quite reach to the peristome. The aperture is oblique, 
peristome thin, well expanded, reflexed below, terminations converg- 
ing, joined by a rather heavy callus, which bears a large obliquely , 
and narrowly V-shaped parietal tooth, the upper branch connecting 
with the peristome, the lower branch somewhat sinuous. ‘The upper 
lip tooth is peripheral, the lower basal, both compressed and entering, 
There is an acute, obliquely entering ridge within the lip, above the 
upper lip tooth, and connected with its inner end. Inside the last 
whorl a low columellar lamella indicates the position of the external 
furrow. 

Alt. 4.3, diam. 10, width of umbilicus 8 mm.; whorls 5. 

Tampico, in river débris, coll. by A. A. Hinkley. 

This species is closely related to P. polita, but differs from that by 
the very long and deep groove on the last whorl within the umbilicus, 
the thin lip, longer teeth and smaller perforation. Further fresh 
specimens are needed to complete the descriptions of both, since the 
types are bleached shells from river débris. 


PALUDESTRINA TAMPICOENSIS n. sp. PI. 5, fig. 13. 

The shell is very minutely perforate or imperforate, rather nar- 
rowly conic, thin, corneous, nearly smooth, the glossy surface but 
slightly striatulate; apex acute. Whorls 6, moderately convex ; 
suture moderately impressed, with a gray margin by transparence. 
Aperture slightly oblique, ovate, angular above ; lip thin and simple, 
the columellar margin concave, hardly reflexed. 

Alt. 3.7, diam. 1.8 mm. 

Tampico, in river débris, coll. by A. A. H. 

Of this little species only a few specimens were taken. It is re- 
lated to P. monroensis Ffld., and is not close to any species yet 
known from Mexico or Texas. 


MOLLUSCAN FAUNA OF MONTEREY BAY, CALIFORNIA. 


BY S. 8S. BERRY. 


(Continued from page 35.) 
Conus californicus Hinds. Shore to 12 fathoms. 
Pleurotoma carpenteriana Gabb. Several individuals of this 


40 THE NAUTILUS. 


beautiful species were dredged in from 12 to 15 fathoms. It is one 
of the most attractive shells to be found in the Bay. 

Daphnella fuscoligata Dall. One good specimen was found be- 
tween tides by some little children who gave it over to me. 

Drillia inermis Hinds. 12 fathoms; living; one specimen. 

Drillia torosa Carpenter. 12 fathoms, and dead specimens on the 
beach. ; 

Clathurella canfieldi Dall. Living under rocks at the big Tide 
Pool. 

Mangilia angulata Carpenter. 12 fathoms. 

Mangilia heragona Gabb. 12 fathoms. 

Mangilia seulpturata Dall. 12 fathoms. 

Cancellaria cooperi Gabb. 15 fathoms; one living, but immature 
specimen. 

Olivella biplicata Sowerby. Between tides. 

Olivella pedroana Conrad. 12 fathoms. 

Olivella intorta Carpenter. 15 fathoms, sand; occurring with the 
‘¢ sand-dollars.” 

Marginella jewettiti Carpenter. Between tides; dead, but good 
shells common on the beach. 

Marginella pyriformis Carpenter. Shore to 12 fathoms. 

Marginella regularis Carpenter. 12 fathoms; with the preceding. 

Mitra maura Swainson. 12 fathoms; several specimens. One 
magnificent live individual was nearly three inches long. 

Mitromorpha filosa Carpenter, Between tides. 

Mitromorpha aspera Carpenter. 12 fathoms. 

Fusus luteopictus Dall. On and under stones between tides; not 
rare. 

Fusus robustus Trask. 12 fathoms; living; occasional examples. 

Nassa mendica Gould. 12 fathoms; evidently exceedingly com- 
mon at moderate depths. 

Nassa mendica, var. coopert Forbes. With the preceding and 
perhaps even more common. 

Nassa perpinguis Hinds. 12 fathoms; few obtained. 

Nassa fossata Gould. Fishermen. 

Nassa californiana Conrad. Fishermen and a few examples 
dredged in 40 fathoms, off Moss Landing. 

Amphissa versicolor Dall. Exceedingly common from the shore 
into 12 fathoms. 


THE NAUTILUS. 41 


Columbella aurantiaca Dall. Between tides; rare. 

Columbella tuberosa Carpenter. Low tide to fifteen fathoms ; 
common. 

Columbella gausapata Gould. Common from the shore line to 
12 fathoms. 

Columbella gausapata, var. carinata Hinds. With the preceding 
and in greater numbers. 

Murex carpenteri Dall. 12 fathoms; one of the finest species in 
the Bay. It is very different in appearance from the M. carpenteri 
of San Pedro. 

Murex petri Dall. A few young shells referred to this species by 
Dr. Dall were dredged with JZ. carpentert and the Calliostoma in the 
blue-clay region. 

Murex foliatus Martyn. 12 fathoms; with the preceding; three 
or four splendid examples. 

Murex nuttalli Conrad. At low tide. 

Murex ( Ocinebra) barbarensis Gabb. 12 fathoms ; two good live 
and several dead shells. 

Murex ( Ocinebra) squamuliferus Carpenter. Two living examples 
dredged with the preceding. 

Murex ( Ocinebra) gracillimus Stearns. Between tides. 

Murex ( Ocinebra) circumtextus Stearns. Fairly common at low 
tide. The specimens run much larger than in the southern part of 
the state. 

Murex (Ocinebra) luridus Middendorf. Between tides; rather 
common. Specimens were found connecting this species with the 
following variety. 

Murex (Ocinebra) luridus, var. asperus Baird. Between tides ; 
not common. 

Murex (Ocinebra) luridus, var. mundus Carpenter. Between 
tides ; less common than typical luridus. 

Murex (Ocinebra) interfossus Carpenter. Shore to 15 fathoms ; 
not uncommon. 

Murex (Ocinebra) peritus Hinds. One living specimen found at 
low tide. 

Murex ( Ocinebra) subangulatus Stearns. Low tide; one specimen. 

Purpura saxicola Valenciennes. Between tides; very common. 

Purpura lima Martyn. Between tides; rare. 

Monoceros lapilloides Conrad. Between tides. 


42 THE NAUTILUS. 


Scala hindsii Carpenter. Between tides; the most common 
species of the genus. It may be found living by searching among 
the sea-anemones. 

Scala subcoronata Carpenter. With the preceding, but less 
abundant. 

Scala crebricostata Carpenter. Living at 12 fathoms, off Del 
Monte, and dead on the beach at Santa Cruz. 

Scala berryt Dall. A small species occurring in almost every 
dredge haul in some localities, but good specimens rare. 12 fathoms. 

Scala rectilaminata Dall. 15 fathoms. (NAvTILUS, xx, p. 127.) 

Scala (Ctrsotrema) montereyensis Dall. 25 fathoms. 

Scala (Opalia) borealis Gould. Between tides rather rare. 


Scala (Opalia) pluricostata Carpenter. 12 fathoms; one speci- 
men. 


Scala ( Opalia) spongiosa Carpenter. Two specimens of this pretty, 
but tiny species. 12 fathoms. 

Eulima rutila Carpenter. 12 fathoms; rather scarce. 

Eulima thersites Carpenter. With the above. Living example 
rare. 

Turbonilla aurantia Carpenter. 12 fathoms. 

Turbonilla (Mormula) tridentata Carpenter. 12 fathoms. 

Turbonilla ( Strioturbonilla) torquata Gould. 12 fathoms. 

Turbonilla (Strioturbonilla) serre. Dall& Bartsch. 12 fathoms. 
All of these are rare species, this being of most often occurrence. 

Turbonilla (Strioturbonilla) vancouverensis Baird. 28 fathoms ; 
one living specimen. 

Turbonilla (sp. undet.). 12 fathoms. 

Odostomia (Chrysallida) oregona Dall and Bartsch, Rare; 12 
fathoms. 

Odostomia (Chrysallida) montereyensis Dall and Bartch. 12 
fathoms ; not so rare as most of the other Odostomia. 

Odostomia (Amaura) montereyensis Dall and Bartsch. 12 fathoms. 

Odostomia (lolea) amianta Dall and Bartsch. 12 fathoms; not 
infrequent. 

Odostomia (Evalea) straminea Carpenter. On abalone shells 
brought up from just below the low-tide mark. Common, but found 
in no other locality. 

Odostomia (Evalea) angularis Dall and Bartsch. Shore line to 
12 fathoms; rare. 


THE NAUTILUS. 43 


Odostomia (Ividea) navisa Dall and Bartch. 12 fathoms, 

Odostomia (Evalea) valdezi Dall and Bartch, 12 fathoms, two 
specimens. 

Priene oregonense Redfield. Fishermen ; rare. 

Gyrineum californicum Hinds. Fishermen. Also dredged in 12 
fathoms. Of rather frequent occurrence. 

Pedicularia californica Newcomb. On corals brought in by the 
fishermen. One beautiful specimen is over haif an inch in diameter. 

Trivia californica Gray. 12 fathoms; one live specimen. 

Radius variabilis C. B. Adams. The dealers and fishermen often 
show examples of this species said to have been found in the bay, but 
the first really authentic specimen from Monterey seen by the writer, 
was a single immature specimen dredged by him. 12 fathoms ; 
living. 

Radius barbarensis, Dall. Fishermen. Quite rare. The only 
specimen obtained is over an inch in length and one of the most 
beautiful products of the bay. 

Erato columbella Menke. Low tide. 

Erato vitellina Menke. Several beautiful examples were found 
alive at low tide. 

Triforis adversus Montagu. Between tides. 

Triforis montereyensis Bartsch. 12 fathoms; a single broken 
specimen. 

Metaxia diadema Bartsch. 12 to 28 fathoms; rare. 

Seila assimilata C. B. Adams. Between tides. 

Cerithiopsis purpurea Carpenter. Between tides. Dead shells 
common. 

Cerithiopsis munita Carpenter. 12 fathoms. 

Cerithiopsis tuberculata Carpenter. Low tide. 

Cerithiopsis interfossa Carpenter. On the beach; one specimen. 

Bittium filosum Gould. Between tides ; plentiful. 

Bittium esuriens Carpenter. Between tides; not common. 

Caecum californicum Dall. 12 fathoms; plentiful. 

Caecum quadratum Carpenter. Found occasionally with the pre- 
ceding. 

Cecum crebricinctum Carpenter. Rather commonly with the 
preceding. The specimens were unusually large and fine. 

Vermetus lituella Carpenter. Between tides. 

Vermetus squamigerus Carpenter. Between tides; not common. 


44 THE NAUTILUS. 


Bivonia compacta Carpenter. Shore to 25 fathoms. Found 
either singly or in contorted masses and not at all rare. 

Littorina planaxis Nuttall. Abundant. 

Littorina seutulata Gould. Abundant. 

Lacuna unifasciata Carpenter. Dead shells common and living 
individuals not rare at low tide. 

Fossarus (Isapis) fenestratus Carpenter. Shore to 12 fathoms. 

Diala marmorea Carpenter. Shore to 12 fathoms. 

Rissoa acutilirata Carpenter, 12 to 25 fathoms; plentiful, but 
usually dead. 

Rissoina bakert Bartsch. 12 to 25 fathoms; rare. 

Rissoina purpurea Dall. 12 fathoms; a single specimen. 

Barleia haliotiphila Carpenter. Between tides; plentiful. 

Calyptrea mamillaris Broderip. 12 fathoms; no living specimens 
found. 

Crepidula adunca Sowerby. Shore to 20 fathoms and everywhere 
plentiful. Found almost invariably on shore attached to the shells 
of the black turban, Chlorostoma funebrale. Specimens dredged 
were usually of a lighter color, deeper, and distorted. 

Crepidula nivea Gould. Found at low tide, adhering to the under 
surfaces of stones. 

Orepidula dorsata Broderip. Low tide to 20 fathoms, particularly 
among sponges and kelp-roots. 

Crepidula lessonii Broderip. Low tide to 20 fathoms; rather un- 
common, but usually in old holes of Pholads, ete. 

Amalthea antiquata Linné. Found in large colonies attached to 
the under surfaces of rocks at the Big Tide Pool. 

Lunatia lewisii Gould. Fishermen, ete. Not rare. 

Lunatia draconis Dall. Fishermen, etc. Also dredged alive in 
12 fathoms of water. An examination of a number of individuals. 
of each of these species, as to whether the shells showed any very 
noticeable sexual differences failed to reveal anything striking. 

Eunaticina oldroydit Dall. Fishermen, etc. None were dredged 
by our party, though this mollusk seems to be a characteristic feature 
of the Bay. 

Velutina levigata Linné. 12 fathoms; one immature shell. 

Lamellaria rhombica Dall. 15 fathoms; living; one specimen. 

Acmaea asmi Middendorf. Not rare on the shells of the black 
turban (Chlorostoma), but occurring nowhere else. Perhaps this is 
a case of commensalism. 


THE NAUTILUS. 45 


Acmaea incessa Hinds. On seaweed at low tide. 

Acmaea instabilis Gould. With the preceding. 

Acmaea triangularis Carpenter. 12 fathoms. Not rare among 
red sponge on the hard clay and always accompanied by the follow- 
ing species. 

Acmaea rosacea Carpenter. 12 fathoms; all quite small speci- 
mens. Also on shore. 

Acmaea mitra Eschscholtz. Between tides, but usually far out on 
exposed rocks. Shells always encrusted with a growth of ‘* coral- 
line,” ete. 

Acmaea patina Eschscholtz. Between tides; plentiful. 

Acmaea patina, var. scutum. Between tides. 

Acmaea patina, var. fenestrata Nuttall. Between tides; rather 
rare, 

Acmaea scabra Reeve. Between tides; abundant. 

Acmaea pelta Eschscholtz. Between tides; common. 

Acmaea pelta, var. nacelloides Dall. Between tides; not rare. 

Acmaea persona Eschscholtz. Between tides; common. 

Acmaea spectrum Nuttall. Between tides ; common. 

Acmaea (Lotti) gigantea Gray. Between tides; abundant. 

Phasianella compta Gould. Shore line to 12 fathoms. 

Phasianella (compta, var.) pulloides Carpenter. With the pre- 
ceding. 

Eucosmia variegata Carpenter. Between tides ; uncommon. 

Eulithidium substriatum Carpenter. A few specimens dredged at 
12 fathoms depth. 

Pachypoma inequale Martyn. One of the finest species in the 
region. It occurs all the way from low water mark at least down to 
a depth of fifteen fathoms and is by no means rare. A few speci- 
mens obtained are extraordinarily large and heavy. 

Leptothyra bacula Carpenter. Between tides; common, 

Leptothyra paucicostata Dall. Between tides ; one poor specimen. 

Leptothyra carpentert Pilsbry. Between tides; common. Also 
to 20 fathoms depth. 

Norrissia norrissti Sowerby. 12 fathoms; one very yonng speci- 
men. . 

Calliostoma annulatum Martyn. 12 fathoms; not rare. Several 
beautiful examples of this exquisite species. 

Calliostoma canaliculatum Martyn. 12 fathoms, and a number of 


46 THE NAUTILUS. 


exceptionally large examples obtained from the Chinamen. Young 
specimens were often found living also at the low water mark. 

Calliostoma costatum Martyn. Shore to 12 fathoms; common. 
Young specimens often lined with bright blue. 

Calliostoma supragranosum Carpenter. Low tide to 12 fathoms ; 
rare. 

Calliostoma splendens Carpenter. 12 fathoms; quite rare. 

Calliostoma’gloriosum Dall. Dead shells on shore, and a few 
living but small specimens dredged in 12 fathoms of water. 

Margarita lirulata Carpenter. Between tides ; common. 

Margarita pupilla Gould. A few specimens were found at low 
tide. They are of the form known as var. salmonea Carpenter. 

Gibbula parcipicta Carpenter (= M lirulata var.). 12 fathoms. 

Chlorostoma funebrale A. Adams. Between tides; abundant. 

Chlorostoma brunneum Philippi. C. funebrale covers the rocks 
everywhere, but one must go at low tide to successfully search for 
C. brunneum, although it is common. 

Chlorostoma montereyi Kiener, 12 fathoms; dead. Also from 
the fishermen. 

Chlorostoma pulligo Martyn. 12 fathoms; not rare but usually 
rather small. 

Halistylus pupoides Carpenter. 12 fathoms; common, occurring 
invariably with Caecum crebricinctum, and the two species run 
through the same variations in color. 

Scissilabra dalli Bartsch. 12 fathoms; one specimen. 

Liotia acuticostata Carpenter. 12 fathoms. 

Vitrinella eshnauri Bartsch. 12 fathoms. 

Vitrinella berryi Bartsch. 12 fathoms. Described with other 
Vitrinellide in the Proceedings of the United States National 
Museum, Vol. XXXII, pp. 167, 176. 

Cyclostremella californica Bartsch. 12 fathoms. 

Haliotis cracherodii Leach. Between tides; abundant. 

Haliotis rufescens Swainson. Especially plentiful just below low 
water mark. 

Haliotis gigantea Chemnitz. 15 fathoms; one dead shell. An 
animal and shell in alcohol among the laboratory collections was un- 
doubtedly collected in the bay. Both specimens were but two or 
three inches long. 

Fissurella voleano Reeve. Between tides to 12 fathoms ; common. 


THE NAUTILUS. 47 


Fissuridea aspera Eschscholtz. Between tides to 12 fathoms ; not 
rare. 

Fissuridea murina Dall. Shore to 12 fathoms; some specimens 
quite fresh but all dead and then not of common occurrence. 

Lucapina crenulata Sowerby. Low tide. 

Megatebennus bimaculatus Dall. Quite a number found alive at 
low tide. 

Subemarginula yatesi Dall. A single fine specimen was obtained ~ 
which had been brought in by fishermen from deep water. It is 
evidently extremely rare. 

Puncturella cucullata Gould. 12 fathoms. This also seems to 
be quite rare in this locality, though one living and several dead 
shells were dredged from a depth of twelve fathoms. 

Lepidopleurus rugatus Carpenter. Not rare at low tide. 

Lepidopleurus ambustus Dall. Several examples were found on 
the fragments of blue clay dredged in 12 fathoms of water. 

Lepidopleurus (Oldroydia) pererassus Dall. 12 fathoms. On the 
blue clay with the other chitons were found two fine specimens. 

Tonicella lineata Wood. Between tides to 12 fathoms. The 
species does not run so large here as further north, but is often very 
beautifully colored. 

Trachydermon ruber Lowe. 12 fathoms; one specimen. It was 
a surprise to find this cold-water species at Monterey. 

Trachydermon hartwegii Carpenter. Common on the rocks be- 
tween tides everywhere. 

( To be concluded. ) 


NOTES. 


ApDITIONS to the ‘* Catalogue of the Shell Bearing Mollusca of 
Rhode Island,” 1889, are the following: 

Lucina filosa, Stimps. 

Odostomia impressa, Say. 

Pisidium Streatori, Sterki. 

Pisidium Roperi, Sterki. 

Pisidium Noveboracense, Prime.—H. F. CARPENTER. 


OysTERS ARE WiLp ANIMALS.—* Domesticated, tame or garden 
oysters are assessable as personal property, according to an opinion 


48 THE NAUTILUS. 


of Attorney-General Jackson, written in answer to a query addressed 
to the tax commission by G. Frank Tuthill, supervisor of the town 
of Southold, inquiring whether oyster beds should be assessed as real 
or personal property and to what purpose the taxes derived there- 
from are to be devoted. The courts have held, says Mr. Jackson, 
that oysters are wild animals and become personal property when 
they are reclaimed or artificially planted. Such domesticated, tame 
or ‘garden’ oysters would be assessable as personal property under 
the ordinary rules.’’—(Loston Globe.) 


STupDENTS of the Unionide may be interested to know that on 
June 10th 1 have collected a number of female Tritogonia tuber- 
culata (Barnes) gravid. All four branchiz were charged with ova. 
More details will be communicated later.— V. STERKI. 


PUBLICATIONS RECEIVED. 


A PRELIMINARY CATALOGUE OF THE LAND AND FRESH-WATER 
Mou.vusca oF Onto. By V. Sterki (Proc. Ohio State Acad. of 
Science, iv, part 8). This very valuable addition to our State cata- 
logues gives an epitome of Dr. Sterki’s work in Ohio in the past 
twenty years, with such other species as have been reported on good 
authority from the State. The total number, 310 species, is prob- 
ably exceeded by no Northern State. Attention is called to species 
which should specially be looked for in Ohio, such as Gastrodonta 
gularis, Omphalina levigata, etc. A separate Jist is given of species 
from pleistocene deposits. Dr. Sterki’s notes on the various species 
will be read with interest by those engaged in similar studies, his 
intimate acquaintance with inland mollusks giving weight to the 
views expressed. 


A New Parasitic Mouiusk or THE Genus Evurima. By 
Paul Bartsch (Proc. U.S. Nat. Mus., 1907). . ptilocrinicola lives 
parasitic on Ptilocrinus pinnatus Clark, dredged by the steamer 
Albatross off British Columbia in 1585 fms. The proboscis is deeply 
inserted in the side of the body of the crinoid. This is like Stylifer, 
yet the apex is not mucronate as in that genus, and there is an oper- 
culum. The largest specimen is 9.5 mm. long. 


ee NAUTILUS. 


VoL. XXI. SEPTEMBER, 1907. No. 5. 


NOTES ON SOME EXOTIC UNIONIDE. 


BY L. S. FRIERSON. 


The collation of some private notes upon The Synopsis of the 
Naiades by Mr. Chas. T. Simpson called my attention to several 
errors in this great work. In the Synopsis Mr. Simpson dealt not 
only with a great number of species, but with an enormous mass of 
references to an involved and difficult literature. The following 
notes are therefore offered in no unduly critical spirit. 


Unio Gigas (Swainson) Sby., U. cuminer Lea. 


Page 608, Mr. Simpson places (it is true, somewhat in doubt) as 
a synonym of 7ritogonia tuberculata, Barnes, the figure of Unio gigas, 
Swainson (Sowerby, in Conchologia Iconica xvi, 1867, Plate LVI, 
fig 287). 

This really fine figure has been totally misunderstood by both Mr. 
Simpson and Mr. R. E. Call, the latter having more than once re- 
ferred it to Unio multiplicatus Lea. It is probable that the habitat 
assigned the shell by Sowerby—the Ohio river—is responsible for 
these singularly poor determinations. Mr. Lea was not much mis- 
led by the habitat, for in his synopsis he placed it among the for- 
eign shells, and in his scheme of classification he placed U. gigas im- 
mediately next to his Unto cumingti. The fact is that gigas is 
only an adult cumingit. The type of the latter was a shell not one- 
third grown, and hence only slightly resembling a full-grown speci- 
men, 


50 THE NAUTILUS. 


As Mr. Lea afterwards received several large cumingit he was 
of course acquainted with its appearance, and hence his placing the 
two shells together. But the tenacity with which Mr. Lea “hung 
on’’ to his names is an old story, and accounts for his placing them 
as allied but distinct species, in his classification. 

However, even though synonymous with each other, it is probable 
that gigas has not precedence, since it was published by Sowerby 
long after Lea’s U. cumingii. Moreover, U. gigas Sowerby is prob- 
ably not the undescribed U. gigas of Swainson. 

An adult specimen of the species under discussion is illustrated on 
Plate VI, from the writer’s collection. It is 209 mm. long, and was 
received from China. 

The remains of the high wing, and the broad biangulated posterior, 
the purplish color inside, and the wrinkled umbones amply distinguish 
U. gigas (cumingii) from either of the shells with which it was 
united by Mr. Simpson and Mr. Call. 


ANODON MORETONIANUS Sowerby. 


On page 925 of the synopsis Mr. Simpson makes a variety 
moretonianus Sowerby of Glabaris trapesialis Lamarck. The 
variety being shown in Sowerby, Conchologia Iconica xvii, 1867, 
Pl. IX, fig. 20. This appears to be a singular error. The shell 
figured not only is not trapesialis Lk., but is nothing like it. It is 
more than probable that Mr. Simpson in haste, made a “ lapsus 
penne”? and really intended to make a variety swsanne Gray; for 
this shell zs close to, if not identical with trapesialis, and is figured 
on the same plate to which we are referred. But be this as it may, 
the Anodon moretonianus of Sowerby (as of Lea) is nothing like 
Glabaris trapesialis Lam. 


UNIO PLICATULUS Lea. 


A singular /apsus seems to have been made on page 353 when the 
genus Ctenodesma is described and the type assigned is the Unio 
borneensis Issel, better known perhaps as the U. plicatulus of Lea. 
But there can be but little doubt that this shell (i. e., the U. 
plicatulus Lea.) is not a member of the Ctenodesma at all, but un- 
questionably belongs to the next described genus Reetidens. 


THE NAUTILUS. 51 


MOLLUSCAN FAUNA OF MONTEREY BAY, CALIFORNIA. 


BY S. S. BERRY. 


(Concluded from page 47.) 

Trachydermon flectens var. montereyensis Bartsch. 12 fathoms ; 
several specimens. 

Chaetopleura gemmea Carpenter. Low tide to 12 fathoms ; quite 
common in places. Most of the specimens are a rather bright 
orange-red in color. 

Chaetopleura rosetta Bartsch. A very small species dredged in 
12 fathoms depth. One specimen was likewise found at low tide. 

Ischnochiton magdalenensis Hinds. This is the commonest shore 
chiton and lives under boulders in dozens. The young specimens 
are often very handsome and vary considerably in coloration and 
marking. 

Ischnochiton mertensii Middendorf. Low tide to 12 fathoms. 
Not rare. This is also a variable species as regards color and mark- 
ings, though generally of a brownish-red. The sculpture of fine 
specimens is wonderfully distinct and is but rarely obscured by for- 
eign growths, or eroded as in the case of so many of the other species. 

Ischnochiton cooperi Carpenter. Low tide; but few found. 

Ischnochiton clathratus Reeve. A single oddly-marked specimen 
was found at low tide by a fellow-student at the laboratory. 

Ischnochiton radians Carpenter. Low tide to 12 fathoms. Two 
of the specimens found were nearly black, almost unmarked, and 
with so exactly similar a color pattern (not in the least intergrading 
with the ordinary form) that the writer was very doubtful as to 
whether they were properly referred to this species, but they were 
identified as radians by Dr. Dall. They seem at least a very well 
marked variety. 

Ischnochiton berryi Bartsch. Six adult specimens and a young 
one were found in the crevices of the blue clay from 12 fathoms. 
They were generally living with a purplish sponge which they re- 
sembled in color. The largest specimen taken measured one and a- 
half centimeters in length in the living state. 

Ischnochiton veredentiens Carpenter. 12 fathoms; two or three 
specimens. 

Ischnochiton regularis Carpenter. Three or four specimens were 
found at low tide. I am told that this is generally a common species 
around Pacific Grove, but we did not find it so. 


52 THE NAUTILUS. 


Callistochiton palmulatus Carpenter. 22 fathoms. Two speci- 
mens. 

Callistochiton palmulatus var. mirabilis Pilsbry. Low tide; not 
rare. 

Callistochiton crassicostatus Pillsbry. Low tide ; not rare. 

Nuttallina californica Nuttall. Exceedingly common between 
tides on the rocks. 

Mopalia muscosa Gould. Low tide to 12 fathoms. Very-common. 

Mopalia hindsii Sowerby. Low tide; not rare. No specimens 
showing any intergradation between this species and the preceding 
or the next were observed. 

Mopalia lignosa Gould. Between tides ; common. 

Mopalia ciliata Sowerby. 12 fathoms; four specimens. All the 
specimens taken were predominantly red in color, but sometimes 
mottled with white, brown and green. A very striking and hand- 
some species. 

Mopalia ciliata var. wossnesenskii Middendorf. 12 fathoms; one 
specimen. 

Placiphorella velata Carpenter. A number of specimens of this 
interesting species were found at low tide. 

Katherina tunicata Sowerby. Several specimens were obtained 
far out on the rocks among the mussels. 

Cryptochiton stelleri Middendorf. A few specimens found at low 
tide. 

In conclusion it may be well to call attention to several interest- 
ing features of Monterey’s mollusk fauna which are presented by the 
foregoing list: the extraordinary development of the chitons (some 
twenty-six species and four varieties); the large representation of 
Ocinebra (ten species and varieties), of Scala (eight species), and of 
the Pyramidellidae (fourteen species); and the prominence of 
Acmaeidae in the shore fauna, both as regards number of species and 
varieties (fifteen) and of individuals. 


TWO NEW SPECIES OF LYMNZEA. 


BY FRANK COLLINS BAKER. 


LYMNZA JAOKSONENSIS D. sp. 


Limnea catascopium Bixney (part), Land and Fresh-water Shells 
of North America, II, 1865, p. 56, fig. 86, two central figures. 


THE NAUTILUS. 53 


Shell ovately fusiform, solid; color very dark horn; surface shining, 
. lines of growth coarse, crossed by deeply incised spiral lines sagrinat- 
ing the surface; one or two rest periods are discernible as longitudinal 
bands on the body whorl or spire; apex smooth, very dark chestnut 
color; whorls 54, rounded, rather rapidly increasing in size; body 
whorl large, ovately-inflated; sutures well impressed; spire about 
equal to the aperture in length, broadly conical; aperture regularly 
elongate-ovate, narrowed at both ends, somewhat effuse anteriorly; 
outer lip with a chestnut-bordered internal lip; inner lip in the adult 
rather broadly reflected over the umbilicus, leaving a small, narrow 
chink; juvenile specimens are almost imperforate; parietal callus 
rather heavy in some specimens, in which case making a continuous 
peritreme; axis very slightly twisted; columella with a well-marked 
fold, more strikingly developed in young than in old specimens. 

Length 19.0, width 10.0, aperture length 10.1, width 5.0, mm. 

Length 16.5, width 9.5, aperture length 9.1, width 4.8, mm. 

Length 14.5, width 8.5, aperture length 8.5, width 4.0, mm. 

Length 14.0, width 7.5, aperture length 7.5, width 3.4, mm. 

Length 12.5, width 7.5, aperture length 8.0, width 3.5, mm. 

Types: Chicago Academy of Sciences, 6 specimens. 

Cotypes: Collections of Acad. Nat. Sci., Phila., and of A. A. 
Hinkley. 

Type locality: Jackson Lake, drained by the south fork of the 
Snake River, Wyoming. 

Records: Oregon: Grindstone Creek (Hayden, Smithsonian col- 
lection). Wyoming: Jackson Lake; Philips Lake, eight miles north 
of Jackson Lake (H. O. Hinkley, A. A. Hinkley). 

Remarks: This species was received from Mr. A. A. Hinkley, of 
Du Bois, Illinois, under the name of ZL. binneyt, Comparison with 
Tryon’s types at once showed that it was not that species, which is 
larger, of a different color and with a differently-shaped shell, inner 
lip, umbilicus, etc. It approaches Z. gabbi Tryon, but the aperture 
is more regularly elongate-ovate, the whorls are rounder, the inner 
lip is broader, there is an umbilical chink and the whole shell is 
more fusiform. Comparison has been made with Tryon’s types and 
with a set in the Chicago Academy of Sciences received from Tryon 
from the original lot. The species resembles very closely in color 
and in the form of the columella certain forms of apicina (=solida 
preoccupied ) but the spire of jacksonens7s is longer and the aperture, 
narrower. 


o4 THE NAUTILUS. 


It has some resemblance to L. catascopium but the columella is 
quite different and the aperture is differently shaped. Binney’s two 
central figures in Land and F.-W. Shells, fig. 86 accurately picture 
the species and the original specimens in the Smithsonian (No. 8304) 
seem to be the same. It has probably been named dinneyt or solida 
in collections but it seems to be a distinct species, related to the 
binneyi-solida-catascopium group of Lymneas. Mr. H. O. Hinkley 
collected the specimens. 


LYMNZA PSEUDOPINGTIS 2. sp. 


Shell globose or globosely ovate, thin and fragile; color very light 
corneous inclining to yellowish, sometimes brownish; surface dull to 
shining, but not polished, growth lines very heavy and spiral lines 
deeply incised; whorls 4 +, rounded; the body-whorl globosely inflated, 
the whorls increase very rapidly in size, the last whorl occupying from 
3 to € of the length of the shell; spire usually short, depressed, dome- 
like, sometimes more elongated; sutures well-marked, bordered below 
by a wide, yellowish band; aperture ovate or roundly-ovate, some- 
times a trifle expanded and somewhat effuse anteriorly; inner lip 
rather broadly expanded, triangular, reflected over but not closing 
the umbilicus, which is a conspicuous chink; there is no columellar 
plait in the majority of specimens; the parietal callus is very thin or 
wholly lacking. The axis is but slightly twisted. 

Length 9.0, width 6.5, aperture length 6.0, width 3.5, mm. 

Length 9.0, width 6.0, aperture length 6.0, width 3.5, mm. 

Length 9.5, width 6.75, aperture length 6.5, width 3.5, mm. 

Length 8.2, width 5.5, aperture length 5.4, width 3.0, mm. 

Length 8.0, width 5.5, aperture length 5.0, width 3.0, mm. 

Length 14.0, width 8.0, aperture length 8.0, width 4.3, mm. 

Length 12.5, width 7.5, aperture length 7.3, width 4.0, mm. 

Length 11.0, width 7.0, aperture length 7.0, width 3.5, mm. 

Length 7.2, width 5.0, aperture length 5.0, width 3.0, mm. Mt. 
Sinai. 

Length 7.5, width 5.0, aperture length 5.0, width 2.5, mm. Mt. 
Sinai. 

Types: Chicago Academy of Sciences; Cotypes, collection Miss 
Mary Walker, Buffalo, N. Y., Mr. Bryant Walker, Detroit, Mich., 
Academy Natural Sciences, Philadelphia and the Smithsonian Insti- 
tution, Washington. 


THE NAUTILUS XXl1 PLATE V. 


13 


4-40, PACH YCHEILUS VALLESENSIS, dd) POLY GYRA POEMRAS 
42, P. AULACOMPHALA. 13, PALUDESTRINA TAMPICOENS:S. 


THE NAUTILUS XXI. PLATE VI. 


UNIO GIGAS ‘SWAINS.’ SOWB (HYRIOPSIS CUMINGII LEA). CHINA. 
(About 34 nat. size). 


THE NAUTILUS. 55 


Type locality: Crystal Brook, Long Island, N. Y. 

Records: Crystal Brook and Mt. Sinai, Long Island, N. Y. 

Habitat: In salt or brackish water, ‘‘ at low tide in shore of bay fed 
by springs” (Crystal Brook) ; in ice-cold spring (Mt. Sinai.) 

Remarks: This peculiar Lymnza has been somewhat of a puzzle 
fora long time. It was at first thought to be a variety of Z. cata- 
scopium pinguis but it differs from that form in its thinner shell, more 
globose form, more dome-shaped spire and particularly in its triangu- 
lar, smooth, reflected inner lip and distinct umbilical chink, The 
form of the shell and of the inner lip resembles the bulimoides group 
of Lymnezas of the subgenus Galba. 

It is probably a variation from the catascopium stock, produced by 
unfavorable conditions, which have dwarfed the shell. It is a signi- 
ficant fact that the icy-cold spring at Mt. Sinai has produced the 
same shell characteristics as the brackish water of Crystal Brook. 

There is some variation in the height of the spire in the numerous 
specimens examined, some individuals having an elongated spire a 
trifle less than the aperture in length, while in others the spire is 
less than half the length of the aperture. This shell also varies in 
corpulency. The inner lip is peculiar and, together with the form of 
shell, will easily separate this species from catascopium, its nearest 
ally. 

The shell was first brought to the notice of the writer by Miss 
Mary Walker of Buffalo, N. Y., who suggested its resemblance to L. 
bulimoides, and later by Mr. Bryant Walker, of Detroit, Michigan. 


ANNOTATED LIST OF THE MOLLUSCA FOUND IN THE VICINITY OF 
LA JOLLA, SAN DIEGO CO., CAL. 


BY MAXWELL SMITH. 


Several winters ago I spent a few months at La Jolla, California. 
Here an old friend, Mr. Joshua L. Bailey, initiated me in the study 
of shells. The town lies twelve miles north of San Diego, directly on 
the coast, and at the base of Mount Soledad. Alternate stretches of 
beach and rock, caves and muddy shores, afford a congenial home 
for mollusks. Miniature canyons slope from the hills down to the 
coast. On the sides of these are found two species of land shells. A 


56 THE NAUTILUS. 


short distance to the south stands Pacific Beach, facing both False 
Bay and the ocean. Several miles to the north are the Torrey 
Pines. Here stand, on the bluffs overlooking the sea, splendid spe- 
cimens of Pinus torreyanus. At the base of these cliffs, in a wild 
spot, a number of interesting finds were made. 

Where no locality is given the species is understood to have been 
found at La Jolla. No dredging was done. Species found on the 
surface of anemones are marked with a star. 

Ostrea lurida, Cpr. False Bay. On stones. 

Anomia macroschisma, Desh. After storms. 

Anomia lampe, Gray. False Bay. Not rare, but difficult to de- 
tach from rocks. 

Pecten equisulcatus, Cpr. False Bay. In mud. 

Pecten monotimeris, Conr. Washed ashore on kelp. 

Hinnites giganteus, Gray. Single valves. 

Lima dehiscens, Conr. Several specimens. 

Modiolus californianus, Conr. On rocks. 

Septifer bifurcatus, Conr. With above. 

Adula faleata, Gld. In soft rock. 

Lithophaga plumula, Hanl. A few in rock. 

Arca reticulata, Gmel. One alive under stone. 

Barbatia gradata, Sby. Many examples under stones. 

'*Cardita subquadrata, Cpr. Uncommon. 

Milneria minima, Dall. On spire of Haliotis. 

Diplodonta orbella, Gld. A few at very low tide. 

Chama exogyra, Conr. Mostly dead. 

Chama pellucida, Sowb. Beautiful examples. 

Cardium substriatum, Conr. Small shells. 

Cardium quadrigenarium, Conr. Brought in by fishermen. 

Tivela stultorum, Mawe. In the sand. 

Amiantis callosa, Con. False Bay. A few good examples. 

Tapes staminea, Conr. With Donax. 

Chione succincta, Val. A few living. 

Chione undatella, Sby. Pacific Beach. Several examples. 

Petricola carditoides, Conr. In rock. 

Donax laevigata, Desh. Very abundant in sand. 

Heterodonax bimaculatus, D’Orb. Pacific Beach. Soft parts 
gone. 

Tagelus californianus, Conr. Pacific Beach. Living in mud 
banks. 


THE NAUTILUS. aif 


Sanguinolaria nuttallii, Conr. False Bay. Mostly dead shells. 

Tellina bodegensis, Hinds. Pacific Beach. Single valves. 

Metis alta, Conr. False Bay. One example. 

Macoma nasuta, Conr. Not rare. 

Semele decisa, Conr. Pacific Beach. A single valve. 

Semele rupium, Sby. A few beautiful examples. 

Lyonsia californica, Conr. False Bay. Fine shells in the drift. 

Pandora bicarinata, Cpr. Pacific Beach. Many single valves. 

Platyodon cancellatus, Conr. Torrey Pines. Fresh specimens. 

Solen rosaceus, Cpr. False Bay. Young specimens. 

Parapholas californica, Conr. Not rare with Adula. 

Penitella penita, Conr. In soft rock. 

Dentalium neohexagonum, S. & P. Pacific Beach. In sand. 

*Cadulus quadrifissus, Cpr. One fine shell. 

*Cavolinia tridentata, Forsk. Worn specimens. 

Actaeon punctocaelatus, Cpr. False Bay. Among the drift. 

*Tornatina culcitella, Gld. A single young specimen. 

Tornatina cerealis, Gld. False Bay. Abundant in drift. 

Bulla gouldiana, Pils. False Bay. Very plentiful. 

Haminea vesicula, Gld. False Bay. Empty shells. 

Haminea virescens, Sby. South La Jolla. On alga-covered 
rocks. 

Tylodina fungina, Gabb. On brown algae. 

*Pedipes unisulcatus, J. G. C. Several hundred in two days. 

Melampus olivaceus, Cpr. False Bay. Abundant with Ceri- 
thidea. 

Siphonaria peltoides, Cpr. One washed ashore. 

Gadinia reticulata, Sby. On the beaches. 

Physa sp. indet. In a small reservoir back of the town. 

Succinea rustica, Gld. San Diego Mission. On the muddy banks 
of a small stream. 

Helix aspersa, Muller. I took several dozen to the town and re- 
leased them in a garden. ‘Today they may still be found. 

Epiphragmophora tudiculata, Binney. Among the roots of cacti. 

Epiphragmophora stearnsiana, Gabb. False Bay. <A few speci- 
mens on the beach, probably washed from Point Loma. 

Glyptostoma newberryanum, W. G. B. Plentiful ten miles in- 
land. 

Terebra simplex, Cpr. Pacific Beach. Uncommon. 


58 THE NAUTILUS. 


Conus californicus, Hds. Plentiful under rocks. 

Pleurotoma carpenteriana, Gabb. ‘Torrey Pines. Several dozen. 

Drillia moesta, Cpr. Under stones. 

Drillia inermis, Hds. Pacific Beach. Several specimens. 

Drillia penicillata, Cpr. Mostly dead. 

*Mangilia striosa, C. Adams. Fine large specimens. 

Cancellaria cooperi, Gabb. Torrey Pines. One example. 

Olivella biplicata, Sby. Common in the sand. 

Olivella pedroana, Conr. With above. 

Marginella jewettii, Cpr. Several worn specimens. 

*Marginella pyriformis, Cpr. Plentiful. 

Marginella varia, Sby. Living, under stones. 

Mitra maura, Swain. Several found living. The pure white 
animal contrasts strongly with the dark shell. 

Mitromorpha aspersa, Cpr. Rare. 

*Mitromorpha filosa, Cpr. Not plentiful. 

Siphonalia kellettii, Fbs. Brought in by fishermen. 

Macron lividus, A. Adams. Under stones. 

Nassa fossata, Gld. One living shell. 

Nassa mendica, Gld. Pacific Beach. A few worn specimens. 

Nassa mendica, Gld., var. cooperi, Fbs. False Bay. One ex- 
ample. 

Nassa perpinguis, Hinds. Mostly inhabited by hermit crabs. 

Nassa tegula, Rve. False Bay. Common in muddy stations. 

Columbella guasapata, Gld. On eel-grass. 

Columbella guasapata, Gld., var. carinata, Hds. With above. 

Amphissa corrugata, Rve. Several found living. 

* Amphissa versicolor, Dall. One shell. 

Murex festivus Hds. Under rocks. 

Murex incisus, Brod. Common in rock pools. 

Murex nuttallii, Conr. Pacific Beach. Many examples. 

Ocinebra interfossa, Cpr. On the beaches. 

Ocinebra poulsoni, Mutt. Pacific Beach. With Murex festivus. 

Ocinebra gracillima, Strs. Among drift. 

Trophon belcheri, Hds. Brought in by fishermen. 

Monoceros engonatum, Cpr. Not rare. 

Monoceros lapilloides, Conr. Several living shells. 

Scala crenatoides, Cpr. Crevices of rock. 

Scala hindsii, Cpr. Common. 


THE NAUTILUS. 59 


Scala tincta, Cpr. Young specimens. 
Janthina exigua, Lan. Found on beaches after storms. 
Janthina sp. indet. False Bay. A single example. 
*Eulima micans, Cpr. Several large shells. 
*Eulima rutila, Cpr. One specimen. 
*EKulima incurva, Ren. Bleached specimens. 
Pyramidella conica, Ads., var. variegata, Cpr. A single example. 
Turbonilla tridentata, Cooper. Large specimens. 
*Odostomia nuciformis, Cpr. One fine shell. 
(To be concluded.) 


NOTES. 


Nore on TRIVIA PILULA Kiener.—This minute species, hereto- 
fore known particularly through specimens from the Hawaiian 
Islands, was described by Kiener in his “Coquilles Vivantes,” (no 
date, but about 1840) p. 151, pl. 54, f. 2, the habitat being then 
unknown. It was mentioned by Reeve (Conch. Iconica, 1844, p. 56, 
f. 524*) as a synonym of the very much larger West Indian species, 
Tr. globosa Gray. Sowerby in his ** Thesaurus Conchyliorum ” 
(1870), Melvill, in his paper on the ‘‘Survey of the Genus Cyprza, 
(1888), and Roberts, in his monograph in Tryon’s Manual of Conch- 
ology” (1885) all followed Reeve in this respect. Weinkauff, how- 
ever, in his Systematisches Conchylien-Cabinet” of Kuster (1881, 
pp- 159, 152), deemed it entitled to specific rank. This view, in 
which my study of these species has long since led me to concur, is 
is now further confirmed by the opinions of three other conchologists 
in the recent ‘* Report to the Government of Ceylon on the Pearl 
Oyster Fisheries of the Gulf of Manaar—Supp. Rept. on the Mol- 
luscan Shells, by Robert Standen and Alfred Leicester,’ (1906). 
Among the species found are mentioned both Tr. globosa and Tr. 
pilula (by typographical error named as “ Tr. fibula’’), with the re- 
mark added, as to the last named species, that they ‘agree with 
Mr. J. M. Williams (of Liverpool), to whom the specimens were 
submitted, that they are not the same as Tr. globosa Gray.” 

Frep L. Burron. 


Tue ANcEY COLLECTION OF SHELLS.—We learn that the col- 
lection of shells of the late C. F. Ancey, of Mascara, Algeria, has 


60 THE NAUTILUS. 


been acquired by Monsieur Geret, Conchologist, 76 rue Faubourg, 
St. Denis, Paris, France. This collection, which is one of the most 
important in Land and Fresh-water shells, will be sold to suit 
the purchaser. Collectors can from now on send to M. Geret to 
reserve any species or type which they may desire from this mag- 
nificent collection. 


ANGELO HEILPRIN. 


Professor Angelo Heilprin, the well-known naturalist died in New 
York City, July 17. He was born in Hungary, March 31, 1853, 
and came to the United States in 1856. He was Professor of In- 
vertebrate Paleontology and Geology, (1880-1900), and Curator, 
from 1883 to 1892 of the Academy of Natural Sciences, and Pro- 
fessor of Geology at the Wagner Free Institute of Science 1585-90. 
For several years past he held the Lectureship on Physical Geo- 
graphy at Yale University. 

While most of the works of Prof. Heilprin pertained to geology 
and physical geography, there are a number which are of special 
interest to conchologists. ‘* Animal Life of the Seashore,” and the 
‘‘ Bermuda Islands”: a contribution to the physical history and 
zoology, both treat extensively of the mollusca. ‘ Explorations on 
the West Coast of Florida” (Trans. Wagner Free Inst. Sci. Vol. 
I). On this expedition the richly fossiliferous pliocene of the Caloo- 
sahatchie was discovered and many of the interesting species of 
mollusks described, together with a number of those from the 
‘‘silex-bearing marl” of Tampa Bay, now classed as Oligocene. 
Professor Heilprin has also published numerous papers in the Pro- 
ceedings of the Academy of Natural Sciences. His later works deal 
principally with volcanic phenomena, especially Mont Pelée, where 
he was one of the first scientific observers on the ground. 

Professor Heilprin possessed to an unusual degree the ability to 
interest non-scientific people in scientific matters ; and to the inspira- 
tion of his personal teaching many owe the beginnings of a deep 
interest in geology, geography and other natural history studies. 
Personally, Professor Heilprin was infectiously optimistic and confi- 
dent. He successfully organized and led numerous scientific expe- 
ditions ; and his death was due to the effects of a tropical fever, con- 
tracted on an expedition to the Orinoco river, about a year ago. 


fee NAUTILUS. 


OCTOBER, 1907. No. 6. 


NOTES ON PLANORBIS.—I. 


BY BRYANT WALKER, 


PLANORBIS MULTIVOLVIS Case. Plate VIII. 


This species was described by William Case, of Cleveland, O., in 
1847 (Am. Jour. Se. [2], II], p. 101), from specimens collected by 
Captain B. A. Stannard, “in the northern part of Michigan.” 
Most, if not all, of these specimens, apparently, were given by Case 
to Dr. Gould, who distributed a few and deposited the balance in the 
collection of the Boston Society of Natural History. Examples 
were sent to the Cuming Collection (now in the British Museum), 
from which the species was well illustrated in the Conchologia 
Iconica by Sowerby, whose figures were copied in the Conchylien 
Cabinet. 

A single specimen found its way into the Jay Collection now in 
the American Museum of Natural History, and another was given 
to the Smithsonian Institution. Subsequently Dr. Gould gave sev- 
eral specimens to Dr. W. H. Dall, which are now in the National 
Museum. So far as I have been able to ascertain, the original lot is 
not represented in any other collections. 

From that time until 1906 nothing further has been known of the 
species. In 1888 (J. of C., V, p. 330), on the authority of the late 
Geo. W. Tryon, Jr., I announced the re-discovery of the long-lost 
species in Marl Lake, Roscommon County, Mich. But a subse- 
quent comparison with genuine specimens showed that the identifi- 
cation was erroneous. The Marl Lake shells are probably P. 


62 THE NAUTILUS. 


campanulatus rudentis Dall (See Harriman Alaska Exped., XIII, 
p- 90). 

The citation of P. multivolvis from Newfoundland by Farrer in 
1892 (Naurizus, VI, p. 36) was, as stated by him, based on a com- 
parison with the Marl Lake shells, and his specimens are apparently 
referable to the same variety. 

Through the kindness of Mr. E. A. Smith I have had the oppor- 
tunity of examining specimens in the British Museum from Labrador 
labelled “ multivolvis.”” They are not that species, however, but a 
form of P. campanulatus. 

In the summer of 1906, Dr. Chas. A. Davis of Ann Arbor, Mich., 
while in the field for the State Geological Survey, had the great 
good fortune to rediscover the genuine multivolvis on the north shore 
of Howe Lake, Marquette County, Mich., about forty miles west of 
the City of Marquette. Nine specimens only were obtained. Three 
of these are figured on the plate (figs. 4 and 8 to 11) and for com- 
parison with them are given figures of one of the original specimens 
in the National Museum (figs. 1-3) and of the specimen in the Jay 
Collection (figs. 5-7). 

Through the kindness of Mr. L. P. Gratacap of the American 
Museum, I have been able to make personal comparison of the latter 
specimen with those from Howe Lake. As shown by these figures, 
there can be no question as to the identity of the Howe Lake shells 
with Case’s species. 

Both of the original specimens figured are apparently much less 
elevated than the Howe Lake shells, but the upper whorls of the 
“‘ Jay’ specimen were badly eroded so that it was difficult to make 
out the exact number of whorls, and the depressed spire of the 
National Museum shell is evidently owing to the very irregular 
growth, as shown in fig. 83. That some of the original lot were quite 
as elevated as the Howe Lake specimen is shown by Sowerby’s figure 
72a, for comparison with which fig. 4 is given. The dimensions of 
this specimen are almost exactly the same as those of Sowerby’s 
figure, and figure 4 would almost pass as an outline facsimile of the 
other. 

It is equally clear that multivolvis is a valid species and quite dis- 
tinct from campanulatus. Compared with the latter it is distinguished 
by its elevated spire with more numerous and narrower whorls and 
the wide, deep umbilicus. 


THE NAUTILES. 63 


An apparent peculiarity of Howe Lake shells is the very irregular 
growth. Of the eight 1906 specimens before me only one (fig. 4) is 
entirely regular in the coiling of the whorls. Of the others the 
shell represented by figs. 9-11 is least distorted and figure 8 is most 
so. That this was also a peculiarity of the original lot is shown by 
figure 3. 

P. multivolvis is apparently a searce shell in Howe Lake at the pre- 
sent time. Two visits there in July, 1907, each involving a careful 
search of the entire north shore, only yielded three specimens. It 
seems probable that the species lives in comparatively deep water 
during the summer and only comes in towards shore, if at all, for 
spawning purposes. Such seems to be the habit of the Lymnzide 
in Pine Lake, Marquette County, which I have been familiar with 
for more than ten years, and a similar habit has been noticed by 
Kirkland in Lymnea mighelsi in Crystal Lake, Benzie Co., Mich. 
(Navritvs, XIV, p. 8.) 

The dimensions of the specimens figured are as follows : 


Major diam. Minor diam. Aris. 
Figs, 1-3 ...... 14,00 mm. 11,50 mm. 6.00 mm. 
Wig, 4 ose: 16.25 mm, 13.00 mm. 9.00 mm, 
Figs, 5-7 ...... 16.25 mm, 13.00 mm. 7.00 mm. 
Wig. 8 - ces. 18.25 mm, 15.25 mm, 8.25 mm. 
Figs. 9-11...... 18.00 mm. 15.00 mm. 9.00 mm, 


The actual occurrence of this species in Michigan having thus 
been definitely determined, there still remains the question as to the 
locality where the type specimens were obtained. Unfortunately, 
Capt. Stannard failed to give any definite information on this point, 
and after the lapse of sixty years, there is no hope of getting any 
exact information. But it is a fair subject for speculation. One 
fact is clear, that although but a very small portion of the Upper 
Peninsula has as yet been explored conchologically, the work that 
has been done there has, with this one exception, failed to discover 
it. The species was described in 1847, and the specimens were 
probably collected within a year or two previous to that time. It is 
to be borne in mind that at that time the Upper Peninsula was an 
unbroken and practically an unknown wilderness. The rapid de- 
velopment incident to the growth of the copper, iron and lumber 
industries had not begun. Marquette was not settled until 1846, 


64 THE NAUTILUS. 


and at that time Houghton was only known to the Indians and voy- 
ageurs. What little navigation there was on Lake Superior was 
between the ‘Soo’ and a few small towns at the upper end of the 
lake, such as Eagle Harbor, Bayfield, Ontonogan, ete. Stannard 
was at that time captain of a small sailing craft which plied between 
these ports. On one of his voyages he discovered the famous rock 
in the center of the lake now known as Stannard’s Rock. It seems 
clear enough, therefore, that the original locality for the Planorbis 
must have been somewhere on or near the south shore of the lake. 
The Hon. Peter White, who has lived in Marquette since 1849, in- 
forms me that the Indians told him that after Stannard discovered 
the rock in the middle of the lake, he was very cautious about sail- 
ing in stormy weather for fear of getting wrecked on some similar 
reef, and that at one time during a heavy stress of weather he took 
refuge under the lee of the Huron Islands and remained there for 
some days. Now the Huron Islands are only about three miles from 
the south shore of the lake, and Howe Lake is less than one mile 
inland and almost directly south of the islands. If during his en- 
forced stay under the shelter of the islands Stannard had gone 
ashore to fish or hunt it is quite conceivable that he reached the 
north shore of Howe Lake and there found the shells he afterwards 
gave to Case. 

While of course this is all speculation based on a mere tradition 
of fact, it certainly raises a possibility, at least, that Howe Lake may 
have been the original locality for this very interesting species. 
And, unless in the years to come, the species shall be found in some 
other locality, which seems more likely to be the original place of 
discovery, this possibility may prove to be a very good probability. 

Note: My last visit to Howe Lake was on August 3d. On 
August 28th my sister made another visit to the lake and found 
seven more specimens all but one, unfortunately, more or less broken. 
During the interval several heavy storms had taken place which 
stirred up the lake and no doubt brought the shells in to shore. Of 
these specimens only one was irregularly coiled. The others were 
all similar to figures 4 and 10 which evidently represent the normal 
aspect of the form as it occurs in that locality. Considerable vari- 
ation in size is shown, the largest specimen measuring 103x177 
and the smallest 74x13? mm. 


THE NAUTILUS. 65 


ANNOTATED LIST OF THE MOLLUSCA FOUND IN THE VICINITY OF 
LA JOLLA, SAN DIEGO CO.,, CAL. 


BY MAXWELL SMITH. 


. (Concluded from p. 59). 
Plate VII, view of La Jolla. 

*Odostomia pupiformis, Cpr. Mostly worn specimens. 

Gyrineum californicum Hds. Pacific Beach. Buried in mud. 

Cypraea spadicea, Gray. After violent storms. 

Trivia californica, Gray. False Bay. A few living, dead shells 
common at La Jolla. 

Trivia solandri, Gray. Not rare. 

Erato columbella, Menke. In the drift. 

Erato vitellina, Hds. Seldom collected alive. 

*Triforis adversa, Mont. Fine shells not rare. 

Cerithiopsis tuberculata, Mont. A few small specimens. 

*Cerithiopsis metaxe, Della Chiaje. False Bay. A single shell, 

Bittium quadrifilatum, Cpr. False Bay. On sponges. 

Cerithidea californica, Hald. False Bay. With Melampus, 

Cecum californicum, Dall. Uncommon. 

Cecum crebricinctum Cpr. Under rocks resting on clean sand. 

Vermetus squamigerus, Cpr. Plentiful under stones. 

Littorina scutulata, Gld. On the rocks. 

Littorina planaxis, Nutt. With above. 

*Lacuna unifasciata, Cpr. Plentiful. 

*Fossarus fenestratus, Cpr. Rare. 

*Rissoa compacta, Cpr. Not often found. 

*Rissoina aequisculpta, Cpr. Not often found. 

Truncatella californica, Pfr. False Bay. In drift. 

Truncatella stimpsoni, Sby. False Bay. With above. 

Crucibulum spinosum, Sby. Pacific Beach. Several specimens 
have long spines, 

Crepidula aculeata, Gmel. On the beaches. 

Crepidula navicelloides, Nutt. In aperture of Natica. Identical 
with C, plana. 

Crepidula onyx, Sby. Pacific Beach. On stones. 

Amalthea antiquatus, Linn. Under layers of rock. 

Amalthea cranioides, Cpr. With above. 


66 THE NAUTILUS. 


*Amalthea tumens, Cpr. Young specimens. 

Natica draconis, Dall. Rare with N. lewissii. 

Polinices lewissii, Gld. Pacific Beach. Common, below tide. 

Polinices recluziana, Desh. Pacific Beach. Abundant at low tide. 

Polinices uber, Val. False Bay. A Lower California shell. 
Not before reported from California. 

Lottia gigantea, Gray. Small specimens plentiful on the rocks. 

Acmaea asmi, Midd. On Chlorostoma. 

Acmea scabra, Rve. Not uncommon. 

Acmea incessa, Hds. Several shells, soft parts gone. 

Acmeza mitra, Esch. Torrey Pines. One specimen. 

Acmea paleacea, Gld. On eel-grass, common. 

Acmea patina, Esch. Abundant at all times. 

Acmea persona, Esch., var. umbonata, Nutt. Many examples. 

Acmea spectrum, Nutt. On rocks. 

Acmea depicta, Hds. On grasses. 

Acmea rosacea, Cpr. One faded shell. 

Phasianella compta, Gld. In drift. 

Leptothyra carpenteri, Pils. Two specimens. 

Pomaulax undosus, Wood. Many shells at low tide. 

Norrisia norrisii, Sby. In alge. 

Calliostoma canaliculatum, Mart. One small shell. 

Calliostoma tricolor, Gabb. Pacific Beach. Under small round 
stones. 

Calliostoma gemmulatum, Cpr. Dead shells, rare. 

Chlorostoma aureotinctum, Fbs. Not uncommon. 

Chlorostoma funebrale, Ad. Many examples. 

Chlorostoma gallina, Fbs. Not rare. 

*Halistylus pupoides, Cpr. Notcommon. A northern species. 

*Ethalia supravallata, Cpr. Rare. 

*Liotia acuticostata, Cpr. Several examples. 

Liotia fenestrata, Cpr. Beautiful specimens. 

*Vitrinella complanata, Cpr. Three shells. 

Haliotis corrugata, Gray. Pacific Beach. One small example. 

Haliotis fulgens, Phil. The most abundant Haliotis. 

Haliotis rufescens, Swains. Several fine specimens. 

Fissurella voleano, Rve. Under stones, common. 

Fissuridea murina, Dall. Dead shells. 

Lucapina crenulata, Sby. Occasionally found alive. 


PLATE VII. 


THE NAUTILUS XXI. 


‘(gg ‘d ‘yu [TOMxXBIN Aq 9[OIWIB dag) 
‘VINUOAITVO ‘VTTOF£ VT 


THE NAUTILUS XXI 


a = 
/ 
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WALKER: PLANORB 


THE NAUTILUS. 67 


*Lucapinella callomarginata, Cpr. Mostly worn shells. 
Megatebennus bimaculatus, Dall. In drift. 

Mopalia muscosa, Gld. Fine specimens. 

Mopalia ciliata, Sby. Several shells. 

Nuttallina scabra, Rve. On rocks. 

Ischnochiton conspicuus Cpr. Under flat rocks. 


NOTES ON THE CONCHOLOGY OF POCONO MANOR, MONROE CO., PA. 


BY JOSHUA L. BAILY, JR. 


During the past summer it was my fortune to spend six weeks at 
Mt. Pocono, Monroe Co., Pa., the largest mountain summer-resort 
in Pennsylvania, and while there had an excellent opportunity to 
explore the molluscan fauna of a region which has been neglected 
by conchologists heretofore. The Pocono Inn, at which I stayed, 
the only hotel on Pocono Manor, is located on Little Pocono Moun- 
tain, about 1850 feet above sea-level. From the Inn a fine view 
may be had on clear days of the Delaware Water Gap. Three miles 
to the westward lies the source of Swiftwater Creek, which after 
passing the falls, reaches Lake Minausin, about 500 feet below the 
level of the Inn. On the other side of the mountain is a smaller 
stream known as Indian Run, which flows into the Swiftwater 
about a mile below the lake. The temperature of the water is 45° 
F. or lower, except in the lake, where the sun shines on it. Per- 
haps this is why I have never been able to find any fresh-water 
shells at all during four summers’ collecting. And also, as implied 
by the name, the water is so swift that no mud settles on the bed 
rock, which is always clean. Shells there must be, somewhere, for I 
have frequently found clusters of eggs adhering to the aquatic vege- 
tation, which is very abundant; but although I have searched the 
Swiftwater to its source, and the other stream nearly as far, I have 
never been rewarded by finding any of our friends at home when I 
called. Last year my brother found one specimen each of an unde- 
termined Physa and Pisidium in Paradise Valley, but as this was 
five miles from Pocono Manor I will not include them in the list. 

With respect to land forms, however, a greater variety is en- 
countered. The country is exceptionally rocky, the predominating 
rocks being red shale. The soil is very fertile, and in the woods the 


68 THE NAUTILUS. 


ground is covered several inches deep with decaying leaves. Most 
of my collecting was done on hillsides having a northeastern exposure 
and at an elevation of about 1550 feet. The list of species follows : 

Tebennophorus carolinensis Bosc. 

Vitrea indentata Say. 

Vitrea hammonis Strom. 

Vitrea ferrea Morse. 

Zonitoides arborea Say. 

Euconulus chersinas polygyratus Pils. Found under decaying 
leaves far from the water. Rare. 

Pyramidula cronkhitet eatskillensis Pils. 

Helicodiscus parallelus Say. 

Polygyra albolabris Say, Exceedingly common in a man-hole on 
the pipe line which takes water from the Manor Spring to the Inn. 

Polygyra dentifera Say. 

Polygyra tridentata Say. Only the typical form. I saw no var. 
juxtidens Pils. 

Polygyra hirsuta Say. I was much surprised to find this species 
only under boards in fields exposed to the sun, and never in shady 
places at all. 

Polygyra fraterna Say. 

Bifidaria pentodon Say. 

Cochlicopa lubrica Mull. Although I searched diligently I was 
never able to find this species alive, four dead specimens being the 
best I could do. 

Succinea ovalis Say (obliqua Say). Another shell of which it is 
hard to obtain good specimens. The broken shells of this species 
are quite common. 

Next year I hope to add some more names to this list. 

Haverford, Montg. Co., Pa., Sept. 9, 1907. 


SHELLS COLLECTED IN NORTHEASTERN MEXICO. 


BY A. A. HINKLEY. 


The species here listed were collected in December and January 
of the past winter. At Tampico land and fresh-water forms were 
scarce and had it not been for the rich find in a windrow of river 
débris or drift the list would have been much smaller. This drift 


THE NAUTILUS. ; 69 


was sifted through a small net and the siftings were worked over 
after returning home. 

In both Panuco and Tamesi rivers there seemed to be very little 
molluscan life. Nearly all the living fresh-water forms listed from 
Tampico were taken from small ponds near LaBarra. 

The mouth of the Panuco river is protected by jetties, on the gulf 
side of which most of the living marine species were taken. Nota 
specimen of any species was noticed on the river side of the jetties. 
Two days were spent on the beach and jetties, but no other effort 
was made to secure the marine forms. 

In the vicinity of Valles the land shells were no more plentiful 
than about Tampico, but the Valles river was much richer in both 
species and individuals than the rivers at Tampico. With two ex- 
ceptions the small streams seemed destitute of molluscan life. 

It has been thought desirable to publish the full list because the 
- shell fauna of this part of Mexico is but little known. No informa- 
tion has before been published on the marine forms between Texas 
and Vera Cruz; and the only data on the land shells of the region 
is contained in Pilsbry’s paper on Rhoads’ collection, which was 
made somewhat further inland, north of the localities here dealt 
with. It is likely that some of the old species hitherto credited to 
Texas were really taken at or near Tampico, such as Helicina 
chrysocheila and Euglandina corneola. The occurrence of Adelo- 
poma so far north is remarkable. 

The larger part of the species of this list were passed on by Dr. 
H. A. Pilsbry. Thanks are also due to Dr. Wm. H. Dall for as- 
sistance with some of the marine and fresh-water forms. 


MARINE MOLLUSKS. 


Spirula spirula (L.). Only broken ones taken. 

Ostrea sp. Scattering young were on the jetties. In different 
places along the river and canal are beds of oyster shells exposed 
to view, overlaid by the surface soil. These shells are often dug 
out and burnt for lime. 

Chama arcinella L., odd valves. 

Pecten exasperatus Sby., odd and broken valves, common. 

Pecten gibbus irradians Lam., odd valves. 

Pecten nodosus Linn., broken valves. 

Pecten raveneli Dall (?), one lower valve. 


70 THE NAUTILUS. 


Mytilus hamatus Say, common on the jetties. 

Mytilus exustus Linn., associated with hamatus, from which it is 
easily separated by its finer striae and smaller size. 

Modiola polita Verrill, 3 young specimens. 

Congeria cochleata Kirby, found among clusters of M/. hamatus as 
if seeking protection. 

Arca floridana Conrad, odd and broken valves were plentiful. 

Area incongrua Say, 3 living specimens taken, odd valves common. 

Area occidentalis Ph., odd valves and pieces. 

Phacoides pectinatus Gmel., odd and broken valves. 

Cardita floridana Conrad, odd valves plentiful. 

Cardium iscoardia Linn., odd and broken valves common. 

Cardium magnum Born, odd valves common. 

Cardium robustum Sol. (?), one young odd valve. 

Dosinia discus Reeve, a few living ones taken, dead ones common. 

Donax variabilis Say, one of the most plentiful species on the 
beach both living and dead. 

Chione cancellata L., odd valves. 

Chione intapurpurea Conrad, odd valves. 

Tellina radiata Linn., odd valves. 

Macoma constricta Brug., odd valves. 

Iphigenia braziliana Lam., a few live ones taken. 

Martesia cuneiformis Say. An old water-logged banana stalk 
thrown up by the tide, contained a number of nice specimens which 
were secured by the aid of a knife; also the shell-lined burrows of a 
Teredo were in this stalk. 

Pinna sp., broken pieces. 

Siphonaria lineolata Orbigny., numerous on the rocks of the jetties. 

Crepidula aculeata Gmel., one poor specimen. 

Cerithidea iostoma Pfr., a few dead specimens. 

Terebra cinerea Gmelin. Living ones were common, mostly quite 
young, exposed to view as the waves receded, always turning head 
toward the current and immediately burying themselves in the sand. 

Natica duplicata Say, one young specimen. 

Natica brunnea Link, two dead and not mature. 

Columbella obesa C. B. Adams, three found on a log thrown up 
by the tide. 

Melongena melongena L., one specimen, dead and poor. 

Purpura haemastoma Linn., common on the rocks of the jetty, no 
full-grown ones found. 


THE NAUTILUS. | (il. 


Modulus modulus L., a few poor specimens noticed. 

Littorina nebulosa Lam., var. columellaris Orbigny. A few were 
found on logs along the beach, but it is common on the jetties. Dr. 
Dall referred it to L. flava. Pilsbry says *‘ L. flava is very thick 
inside the lip, exactly like 7rrorata. It resembles nebulosa in color, 
but is evidently a distinct species close to trrorata. I have never 
seen L. flava from north or west of Trinidad.” 

Littorina ziczac Dillwyn., very numerous on the jetties. 

Cassis inflata Shaw, two young and dead. 

Nerita precognita C. B. Adams, three on the rocks of the jetty. 

Neritina lineolata Lam. Plentiful in low places along the river 
and young ones were found on the gulf side of the jetties. 

Neritina virginea L., a few were found with /:neolata on one jetty. 

Solarium granulatum Lam., two dead specimens. 

Fissurella alternata Say, a few dead ones. 

Vermicularia spirata Phil., young and dead. 

Melampus coffea L., a few immature specimens. 

Melampus floridanus Shuttl. Only a few specimens of this small 
species were found, Dr. Dall referred them to young Tralia cingu- 
lata Binney. 


HELICINID#, 


Helicina chrysocheila Binney. Tampico and Valles. Scattering 
specimens were found over considerable territory. The species is 
very variable in color. Dead specimens were numerous in some 
places. 

Helicina flavida Mke. This species was found only in the drift 
on the river bank, mostly dead. 

Schasicheila hidalgoana Dall. El Abra, on the mountain side 
with Opeas and Holospira, only 3 taken. 


HELICIDA, 
Trichodiscina coactiliata Fér. Tampico, in drift. 
Praticolella griseola Pfr. This was the most widely distributed 
species found. It seems to prefer the open fields and pastures, 
Polygyra martensiana Pils. Tampico and Valles. 
Polygyra oppilata Moric. ‘Tampico and Valles. 
Polygyra implicata Beck. Tampico. 
Polygyra polita Pilsbry and Hinkley. Tampico. 
Polygyra aulacomphala Pils. and Hinkley. Tampico. 


72 THE NAUTILUS. 


Thysanophora conspurcatella Morel. El Abra, found with Opeas. 

Thysanophora fischeri Pilsbry. Tampico, drift. 

Thysanophora horni Gabb. Tampico, drift. ‘“ Not before known 
from the littoral region of the Gulf ” (Pilsbry). 


BULIMULID. 


Bulimulus dealbatus Say. A few dead specimens noticed in the 
vicinity of Valles. 

Bulimulus schiedeanus Pfr. One dead specimen, Tampico. 

Drymeus multilineatus Say. Valles. A few dead ones with 
colors nearly as bright as in life. Pilsbry says ‘‘ The specimens are 
almost exactly intermediate between D. multilineatus and D. dis- 
crepans Sowb., having the coloration of the latter except that the 
apex is dark bluish, as in multelineatus. There is no dark subsutural 


band.” 
( To be concluded. ) 


NOTES. 


WE regret to record the death of Mr. Sloman Rous, of Brooklyn, 
N. Y., who died at sea on July 8th. 


PUBLICATIONS RECEIVED. 


THE MOoLuiuscA OF THE PERSIAN GULF, GULF OF OMAN AND 
ARABIAN SEA, ETC.—Pt. II, Pelecypoda, by James Cosmo Melvill 
and Robert Standen. (Proc. Zool. Soc., London, 1906, pp. 783- 
848, pls. 53-56.) 

In this part some 426 species are enumerated, of which 35 species 
are new. ‘The richness of the fauna is dwelt upon, the total number 
of mollusca recorded from this area being 1618. The two parts 
constitute a valuable addition to our knowledge of mollusks of this 


region. 


New anp CaARACcTERISTIC Species oF Fosstr Mo.iusKs 
FROM THE O1L-BEARING TERTIARY FORMATIONS OF SOUTHERN 
Caxirornia, by Ralph Arnold. (Proc. U. S. Nat. Mus., XXXII, 
pp. 525-546, pls. 88-51, 1907.) 

An interesting and profusely illustrated paper, in which 21 species 
and varieties are described as new. ‘The geological formations 
represented are the Lower Miocene and Pliocene. 


2 


eae NAUTILUS. 


VoL. XXI. NOVEMBER, 1907. No. 7. 


EYES OF HELICODISCUS LINEATUS. 
BY EDWARD S. MORSE. 


Last year in studying the eyes of the smaller Helices I discovered 
that Helicodiscus lineatus was destitute of any pigmental organ 
functioning as an eye. A further examination with a higher power 
reveals apparently rudiments of a structure which may indicate the 
traces of an eye but not the slighest evidence of pigmentation was 
seen. The body and tentacles are a clear white. 

In the volume on Mollusks in the Cambridge Natural History 
series the Rey. A. H. Cooke gives an interesting resumé of what is 
known of the molluscan eye. He says, “In land mollusea which 
live beneath the surface of the ground or in absolute darkness the 
eyes are generally more or less modified. Thus in Zestacella, which 
usually burrows deeply in the soil but occasionally emerges into the 
open air, the eyes are very small, but distinct and pigmented. Our 
little Ozeetlianella acicula, which is never seen above the surface, is 
altogether destitute of eyes. A species of Zospeum, a Helix anda 
Bithynella from dark caves in Carniola bave suffered a similar loss.” 

The habits of H. lineata do not differ apparently from the other 
smaller species with which it is associated. I hope later to make 
some experiments in phototaxis, 


74 THE NAUTILUS. 


CAPE €0OD NOTES. 


BY. REV. HENRY W. WINKLEY. 


The month of July was spent at Provincetown. August at the 
head of Buzzard’s Bay. Unfortunately without a dredge, I can 
report only low tide results. The hook on the end of Cape Cod 
is, geologically speaking, a late formation, composed entirely 
of coarse sand with limited vegetation; hence not a paradise for 
land and fresh-water forms. I examined two fresh-water ponds but 
found no shells. On the land Helix hortensis has a colony. No 
banded forms were found. The lemon-yellow and a very light 
nearly transparent form are the chief colorings. The latter com- 
pared with the specimens of this species found by Mr. C. W. John- 
son, at Chatham, are of the same color but more nearly transparent. 
While the Cape is not an absolute barrier between northern and 
southern forms, it is usually counted as a boundary. Provincetown 
being at the tip end, I was curious to know its fauna, and can 
pronounce it southern. Bitttum nigrum and Odostomia trifida, 
bisuturalis, fusca, seminuda, and an undescribed species occur more 
or less abundantly. Both Lunatia heros and Neverita duplicata occur 
on the sand flats, Litorinella minuta is abundant but small. Mya 
arenaria, living in the clean sand, is abundant and the whitest shells 
I ever saw. Venus mercenaria, Clidiophora gouldiana and other 
forms show the general character of the fauna. Without attempting 
to make a detailed list, the forms are the same one would find south 
of the Cape. Purpura lapillus, living on the wharves, gave a few 
curiosities. Several specimens of deep yellow color in last year’s 
growth had changed in this year’s addition to pure white. 

The outer side of Cape Cod is the home of Ceronia arctata. A 
visit to Highland Light at North Truro gave me a half hour at high 
tide, but I found a good set of the species and of fine large size. 
Odd valves of Astarte castanea show that it abounds. One or two 
specimens of Cochlodesma leanum demonstrate its home there. 

A day spent at Woods Holl gave me an hour’s collecting at low 
tide in the eel pond. The only record I would make would be one 
or two species of Zurbonilla secured from a row boat. It is the first 
time I have ever collected any species of this genus in shallow water. 
My headquarters during August were at Wareham on an arm of 


THE NAUTILUS. 75 


Buzzard’s Bay, not quite on the Cape but near enough. As Pat 
says, ‘‘contagious’”’ to it. The marine forms here are affected by 
brackish water. In one arm I could get Jlyanassa obsoleta in abund- 
ance, but failed to find Bittium and the Odostomias. In another 
arm with the fresh water they occur, but more or less eroded. A 
colony of fine specimens of Paludestrina salsa occurs in a pot hole on 
the marsh, and my daughter, Miss Ruth Winkley, located the same 
form sparingly among the flags along the border of the Agawam 
river at East Wareham. More should be said of the fresh-water 
collecting, The Agawam river is rich in specimens. Unio com- 
planatus abundant and large, Anodonta cataracta occasional, and 
Anodonta implicata abundant and the finest specimens I have seen. 
My largest is 64 inches long and weighs 54 ounces. (Gould gives 
the largest as 44 inches long.) Sphaerium secure is very abundant. 
I obtained an unusually fine series of Anodonta beaks at this spot. 
On the whole I may say that a section of this stream is the richest 
in animal life I have ever seen in New England. 

Ditches in the older cranberry bogs and small brooks abound in 
specimens of Pisidiwm, and Ammnicola limosa and porata occur 
sparingly. Other fresh-water species occur like Planorbis, Physa, 
etc., but they are in better form earlier in the season, so I neglected 
them. I failed to find land shells. It has been an exceedingly dry 
season, and that may be the reason. I regret that I had no dredge 
with me. The good results from shore collecting would indicate the 
same from deeper waters. 


A NEW SPECIES OF FLUMINICOLA. 


BY H. A. PILSBRY. 


The genus Fluminicola of Stimpson comprises globose, Somato- 
gyrus-like snails of streams and springs in and west of the Rocky 
Mountains. A list published by the writer in 1899' enumerates 
seven species and one subspecies. A new form was among the 
mollusks collected by the late Rev. Mr. Ashmun in Idaho, during 
the last year of his life. 


1The Navtitus, XII, March, 1899, pp, 123, 124, 


76 THE NAUTILUS. 


FLUMINICOLA MINUTISSIMA n. sp. Plate IX, fig. 1. 


The shell is perforate, obliquely globose, thin, smooth, olivaceous 
yellowish, composed of three rapidly enlarging whorls, which are 
convex, and separated by an impressed suture, which becomes very 
deep in the last half-whorl. The spire is very short, the summit 
obtuse, the first whorl being nearly flat. The last whorl enlarges 
rapidly, and is well rounded peripherally, less so below ; its last half 
descends rapidly. The aperture is quite oblique, nearly circular, but 
is angular above. The outer lip is thin, distinctly retracted at the 
upper insertion; the slightly concave columella is very strongly 
calloused within, flattened on the face. Below the umbilical per- 
foration there is a narrow, crescentic, slightly excavated area, 
bounded outwardly by a low angle. 

Alt. 1.5, diam. 1.75 mm. 

Price Valley, Weiser Canyon, Washington Co., Idaho. Types 
no. 94273 A. N.S. P., collected by the Rev. E. H. Ashmun. 

This species is smaller than any other of the genus, and is further 
distinguished by its very short spire and the rapid descent of the last 
half whorl. The columellar callus is unusually heavy for so small 
a sbell. 


SHELLS COLLECTED IN NORTHEASTERN MEXICO. 
BY A. A. HINKLEY. 


BULIMULID. 


Oxystyla princeps Brod. Tampico and Valles. Only dead 
specimens secured. 
UROCOPTID. 


Macroceramus mexicanus Martens. El Abra. 

Holospira hinkleyi Pils. El Abra, on the mountain side with 
Opeas. 

PUPILLID&. 

Strobilops hubbardi A. D. Brown. Tampico, scarce in drift. 

Pupoides marginatus Say. Tampico, drift. ; 

Bifidaria contracta Say. Tampico, drift, the most abundant 
species. 

Bifidaria pellucida Pfr., var. hordeacella Pils. Tampico, drift, 
almost as numerous as 4. contracta. 


THE NAUTILUS. 77 


Bifidaria procera Gld. Tampico, found under pieces of wood in 
an open field, also in the drift. 
Vertigo milium Gould. Tampico, two specimens in the drift. 


ACHATINIDZE. 


Opeas gracile Hutton. El] Abra, plentiful on the mountain side. 

Opeas beckianum Pfr. Tampico, drift. 

Opeas micra Orb. Tampico, drift. 

Leptinaria tamaulipensis Pils. Tampico, scarce in the drift. 

Leptinaria mexicana Pfeiffer. Tampico, drift. 

Spiraxis tampicoensis Pils." Tampico, drift, numerous. 

Cecilioides (Czxcilianopsis) jod Pils. Tampico, drift. 
OLEACINID. 


Euglandina corneola Binn. Valles, a few dead ones. . 

Euglandina texusiana Pfr. Tampico and Valles, found about de- 
eaying logs, the most plentiful species of this family. Pilsbry says 
“Not G. turris. I find that they agree fully with Texas examples.” 

Euglandina sp. Valles. 

Streptostyla gracilis Pils. Tampico and Valles, dead specimens. 

Salasiella joaquine Strebel. El] Abra, one specimen. 


ZONITIDZ, 


Guppya elegans Strebel. Tampico, a few in the drift. 

Zonitoides minuscula Binney. Tampico, numerous in the drift. 

Zonitoides singleyana Pils. Tampico, common in the drift. 

Zonitoides pentagyra Pils. Tampico, drift. 

Zonitoides elegantula Pfr. Tampico, drift. This minute species 
was not plentiful. Pilsbry says ‘* This is Helix elegantula Pfr., very 
badly figured as Chanomphalus elegantulus, by Strebel. Hitherto 
not known north of Vera Crnz. It has about the size and general 
appearance of a Radiodiscus, but the embryonic whorl is without 
spiral striz.”’ 

LIMACIDE. 

Agriolimax sp. undet. Valles, scarce, 

ENDODONTID. 


Pyramidula victoriana Pils. Tampico, in the drift, mostly im- 
mature examples. 


1This species appears to belong to the genus Celostele, which has not hith- 
erto been known in America.—Eb. 


78 THE NAUTILUS. 


SUCCINEIDS. 


Succinea luteola Gould. In the vicinity of Tampico this species 
was numerous in a pasture ; near Valles they were found along the 
wagon road, but more plentiful on a railroad embankment. They 
are richly colored, reddish with pale and dark streaks ; some albino 
specimens were taken. 

Succinea luteola Gld., var. subtilis Marts. Valles; only two 
examples taken. 

Succinea sp. Tampico. Found in a loose pile of decaying vege- 
tation and on the skull of a cow. The specimens taken are not 
quite as large as S. duteola, and are thinner. 


VERONICELLID. 


Veronicella sp. Valles ; scarce, in shaded places. 


CYCLOSTOMATID A. 


Adelopoma stolli Martens. Tampico. A single specimen found 
in the drift. Pilsbry says ‘* This small species was described by 
Prof, Von Martens as Diplommatina stolli, This example is a little 
smaller than typical stolli, with weaker ribs and less swollen penult. 
whorl. The last whorl is gibbous above the columella, a character 
not noticed by Von Martens in his description of stolli. The num- 
ber of riblets is about the same as in stoll’, or perhaps somewhat 
greater. Until further examples are found the value of these differ- 
ences from stolli is uncertain.” 


LYMNZEID£E, 


Lymnea cubensis Pfr. Valles. Taken from a pool by the 
roadside. 

Planorbis cultratus Orb. Tampico. This small flat species was 
noticed in but one place ; they were taken from the edge and under- 
side of a piece of board and other driftwood lying on the land near 
the edge of a small pond. A few Seg. obstructa were taken with 
them. 

Planorbis liebmanni Dkr. Tampico and Valles; only dead speci- 
mens found in river débris. 

Planorbis sp. Tampico. A very small form found in the drift. 

Segmentina obstructa Morelet. Tampico and Valles. A com- 


mon species in ponds; dead ones were numerous in places in the 
drift. 


THE NAUTILUS. 79 


Physa mexicana Phil. Tampico and Valles. Young shells were 
numerous in some of the shallow pools, the larger ones being rather 
scarce. 

Physa osculans Hald., var. rhyssa Pils. Roadside pool near 
Valles with Lym. cubensis, the only place these two species were 
found. Differs from P. mexicana in having a more attenuate spire, 
one more whorl, and the body whorl is less inflated. 

Physa sp. This is thicker than the P. mexicana and has the 
chestnut-colored callus within the outer lip, which in the larger 
examples shows at previous stages of growth. 

Ancylus excentricus Morelet. Found on plants in Tamesi and 
Valles rivers ; scarce ; a fragile species. 

VALVATIDE. 

Valvata humeralis Say. Valles river. 

AMNICOLIDZ. 

Cochliopa riograndensis Pils. & Ferr. Valles river. More ele- 
vated than Valvata humeralis and differs from it in having several 
colored spiral lines, giving it a striking resemblance to a small Helix. 
The operculum and teeth, examined by Dr. Pilsbry, show it to be 
correctly referred to Cochliopa. The aperture is angular above, thus 
differing from that of Valvata. 

Amnicola guatemalensis C. & F. Tampico, on pieces of wood in 
ponds. 

Amnicola tryoni Pilsbry. Tampico, drift ; a smaller species than 
guatemalensis. 

Potamopyrgus coronatus Pfr. Tamesi river, Tampico. The 
spines on the shoulder are well developed for so small a species. 

Potamopyrgus coronatus texanus Pils. Valles river, only two 
examples secured, they do not show the spines. 

. Paludestrina tampicoensis Pils. & Hinkl. Tampico. 
MELANIID&. 
Pachycheilus vallesi Hinkley. Plentiful in the Valles river. 
UNIONIDE. 

Unio tampicoensis Lea. Valles river. 

Unio popei Lea. Valles river. Pilsbry says of these shells “I 
think they are correctly referred to popet Lea, as a variety. It 
differs from typical Texan popez in the dark nacre and the more dis- 
tinct green rays. It is related also to U. soledadensis Crosse & 


80 THE NAUTILUS. 


Fischer, but differs in the wide posterior end and the distinct rays. 
U. soledadensis was omitted by Simpson, evidently inadvertently. 
It should go in the Synopsis next to U. popet.” 

Unio sp. Valles river. The most plentiful Unio found. Dall 
referred it to soledadensis. Pilsbry says ‘‘ A new species, related to 
popet, yet with some features of U. medellinus.” 


CYRENIDS. 


Cyrena carolinensis Bosc. Panuco river, Tampico ; found but few. 

Cyrena germana Prime. Panuco river, Tampico. A single ex- 
ample, more compressed, and lighter colored, but possibly intergrades 
with carolinensis. 

Pisidium singleyi Sterki. Valles river; Valles and drift of 
Panuco river, Tampico. 

Eupera singleyi Pils. Valles river, Valles; and Tamesi river, 
Tampico. 

MACTRID, 


Mulinia lateralis Say. Panuco river. 


PELSENEER’S TREATISE ON MOLLUSCA. 


A TREATISE ON ZooLoGy, edited by E. Ray Lankester, Part 
V, Motuiusca, by Paul Pelseneer, London, 1906. This admirable 
book, of 355 pages, should be studied by every conchologist, although 
it is not quite elementary, and some fundamental knowledge of 
zoology is required to fully understand it. The text is well illus- 
trated by 301 figures, partly diagrammatic, many of them from Prof. 
Lankester’s article ‘‘ Mollusca ”’ in the ninth edition of the Encyclo- 
pedia Britannica, 1883. It is interesting to note the considerable 
changes of classification from Lankester’s article to the present book. 
The editor of the NauriLus may permit to cite the main groups 
here, side by side: 

LANKESTER, 1883, PELSENEER, 1906, 


Branch A, Glossophora, Grade A. Isopleura. 
Class 1. Gastropoda, Class I, Amphineura. 


Br. a, Isopleura. aw 
Br. 6. Anisopleura. Grade B, Prorhipidoglossomorpha. 


Class 2, Scaphopoda, Class I. Gastropoda. 
Class 3, Cephalopoda. Class II. Scaphopoda. 
Br, a, Pteropoda, Class III. Lamellibranchia, ’ 


Br. 6, Siphonopoda. : 
Branch B. Lipocephala. Grade C, Siphonopoda, 


Class 1, Lamellibranchia. Class I, Cephalopoda. 


THE NAUTILUS. 81 


It is seen that the Prexorpopa have disappeared as a division of 
higher order; they are ranged under two tribes of the sub-order 
Tectibranchia, order Opisthobranchia, of Gastropoda (pp. 170 and 
173). 

Many conchologists and zodlogists may be surprised to find the 
class Lamellibranchia’ ranged under the same group with the Gas- 
tropoda and Scaphopoda, as in contrast to the Jsopleura and the 
Siphonopoda, It still appears that the arrangement as adopted by 
Lankester and other zodlogists, is more natural: Lipocephala or 
Acephala, and Cephalophora. Not alone is the presence or absence 
of a head a distinguishing feature. On pp. 6-7 the author says: 
“the radula is characteristic of the phylum mollusca. It exists 
throughout the series . . . and is only absent in the most specialized 
types, in which it has evidently been lost, such as... the Lamelli- 
branchs...” If it was lost in the latter there should be traces of 
it in the embryo, the more so since the embryonal and larval stages 
of at least many Lamellibranchia are of very well marked forms and 
existing as such through a long time and under various conditions. 
Also for other reasons it might appear that the Lamellibranchia are 
not a specialized or retrograde group, e. g., from the Gastropoda or 
some primitive form near them, as must be inferred from Pel- 
seneer’s arrangement, but one primitively different. At any rate, I 
believe that they represent a group of decidedly inferior organiza- 
tion, and that their proper place is not in the same group with the 
Gastropoda, and between the latter and the Cephalopoda. The 
formation, and especially the functions of the ctenidia (branchiz), 
are certainly significant ;? and although the Lamellibranchiata have 
been decidedly, and as it seems, definitely separated from the 
Bryozoa, etc., the fact should not be overlooked that the branchiz of 
the former have not only the same functions—principally nutritive 
—as the tentacles of the latter, but that, in many instances at least, 
the filaments are of similar formation, even to minute details. 
Something else might be said in this connection: it is the tendency 


? 


of our day to found classification on a single organ, or organ sys- 
tem—rather than on the ensemble of the whole organization. 


1On p. 197 the author says that the name Scaphopoda has been more gen- 
erally used than Solenoconcha, for the sake of uniformity ; for that same reason 
he might have adopted the name Pelecypoda in place of Lamellibranchia (better: 
Lamellibranchiata). 


2 Confer also Lankester 1. c., pp, 684 and 685, 


82 THE NAUTILUS. 


While studying the book I made some notes on minor items, and 
a few of them may be mentioned here. 

A somewhat strange incongruity is shown in the synoptic tables 
at the head of each class, that of the Isopleura is carried down to 
families, those of Gastropoda and Lamellibranchia to sub-orders (the 
tribes of the former are omitted), that of Cephalopoda to tribes. In 
a general way, the grouping is carried down to genera, giving shorter 
or longer diagnoses of the latter where it seemed desirable. 

Pp. 7 and 89-91. Radula. It should have been stated that the 
radula with its teeth is constantly formed anew, and advancing ; 
while the teeth at the anterior end are becoming blunt and useless, 
and dropping off, new teeth at the posterior end are formed. The 
whole radula is renewed several and probably many times during 
the life of a snail. Also it should have been said that at least in 
some Gastropods and probably in many of them, the first teeth on 
the radula of the embryo are of a shape entirely different from those 
of the post-embryonal animal. 

P. 18. “ The otocysts. . . contain auditory granules or otoli- 
thes.’ But in closing the paragraph, the author says: “ through 
them the creeping molluscs preserve their orientation and swimming 
molluses their equilibrium.”’ I would emphatically endorse the latter 
view, as against the otocysts being anditory organs, their structure as 
well as location, in most mollusca, seems to point in that direction. 

P. 186. Physide . . . “ with anarrow aperture.’’ How does that 
agree with forms like our Ph. ancillaria, etc.? Nothing is said 
about the radula so very different from those of other Basommato- 
phora. 

P. 186. Zonites evidently comprises’ Zonites s. str., Zonitoides+ 
Gastrodonta, Hyalina, etc., (conf. p. 129, 1. 4, Zon. cellarius) ; no 
mention is made of the differences of the genitalia, the foot, the 
radula, etc. 

P. 187. Helix also is understood in the ancient, Pfeifferian sense, 
with “‘more than 4,000 species, a large number of sub-genera have 
been established,” and some of them are cited. Macroén with its 
immense (probably meroblastic) ova might have been mentioned. 

P. 188. Pupa, “shell cylindrical, dextral with obtuse summit 

.-” This will fit most of the Pupilla, Orcula, etc.; but how 
about most of the Torquilla, Bifidaria, Pupoides, etc., which are 
evidently included ? 


1 According to English-French conchological—not political—coalition. 


THE NAUTILUS. 83 


P. 253. «There are 1,000 Unionide,’’ pp. 267-268, “ Unio, 
Retzius, shell thick, hinge toothed [sic!]. This genus includes more 
than a thousand species.”” Seven other genera are cited, e. g., Ano- 
donta, Quadrula, but Lampsilis is not, although mentioned on p. 240. 
(A few points on the morphology and anatomy of Unionide will be 
reviewed elsewhere). That the larval embryo of the Mutelide is a 
lasidium, might have been added. 

P. 251. In fig. 228 A it is surprising to find the brush- or candle-like 
processes of the soft parts of a glochidium designated as ‘“ teeth of 
the shell” (S); the figure and explanation are taken over from 
Lankester’s article (fig. 149 A), after Balfour. 

These few criticisms on details do not mean to detract from the 
merits of the book in a general way. It cannot reasonably be ex- 
pected that a man writing a book on a certain large group of ani- 
mals be familiar with every detail. V. STERKI. 


FREDERICK STEARNS. 


Frederick Stearns was born in 1832, and died in January of the 
present year. He was the founder of one of the greatest pharma- 
ceutic establishments in this country. In 1887 Mr. Stearns retired 
from active business partly for the purpose of recuperating his 
health, which too strenuous devotion to business had somewhat 
impaired. The following years were devoted to travel abroad. 
Always observant and critical, he began as an amateur collector, 
and among his earliest achievements in this line is a magnificent 
collection of Japanese and Korean art objects, some 16,000 of which 
he donated to the Detroit Museum of Art—having a few years pre- 
viously by his money and influence assisted in building the fine 
museum itself. Various smaller collections, such as coins, precious 
stones, etc., claimed his attention for a time. Then he took up con- 
chology and devoted his time and money for several years to what 
was to him an absorbing diversion, and to science a work of great 
value. Over 10,000 species of shells classified and arranged in 
systematic order and catalogued are in the Detroit Museum asa 
monument to his activity in this line of human endeavor—almost a 
life-work in itself. His book, ‘* Marine Mollusks of Japan,” on which 
Dr. H. A. Pilsbry of Philadelphia collaborated, is a standard work 
based on his collection. 


84 THE NAUTILUS. 


A considerable number of Japanese shells named after Mr. Stearns 
remind students of his labors on that fauna. Among invertebrates 
of other groups, he discovered Scalpellum stearnsi, a very large and 
handsome pedunculate barnacle. 


SLOMAN ROUS. 


Sloman Rous died at sea July 8, 1907. Mr. Rous had been ill 
for several months, and upon the advice of physicians resolved to 
return to his old home in South Africa at Port Elizabeth. He 
arrived at Southampton, and died when two days out from England 
on his way to Africa. He became very ill in the morning of July 
8th, and expired in less than two hours. 

Mr. Rous was born August 3, 1838, in England. He had lived 
the greater part of his active life in South Africa, where previous to 
the Boer war he accumulated a small fortune. The embargo, or 
what practically amounted to that, imposed by the Boers on im- 
ported articles ruined his business. He then came to the United 
States, which he had previously visited and, bringing with him a 
valuable collection of shells, opened a store in Jersey City, after- 
wards transferred to Brooklyn. He became well-known among 
collectors. His shells were desirable species, and the accuracy of 
his identifications was unquestioned. In South Africa he had 
devoted his leisure time to the gratification of his love of natural 
history. He made very important collections of South African 
insects, a large part of which were unfortunately destroyed, and he 
also contributed toa knowledge of the molluscan life of the Cape and 
the neighboring coasts. Many species of shells bear his name, and 
he almost or quite alone among dealers possessed specimens of the rare 
Achatina (Cochlitoma) lintere, the locality of which is now deserted. 

During the last five years of his life he was attached to the De- 
partment of Conchology in the American Museum of Natural 
History, New York. He was painstaking to the last degree, en- 
thusiastic and discriminating. When disabled by his sickness—an 
asthmatic affection—he was engaged in studying the revision of the 
Amphibolidae, and was also at work revising the nomenclature of 
the collection of land shells., 

Mr. Rous was a man distinctively strong and independent in 
thought, agreeable in address, and unfailingly courteous and con- 
siderate.—L. P. GRATACAP. 


THE NAUTILUS XXI PLATE XII. 


LAMPSILIS FIBRIATA. 
L. FIMBRIATA. L. IRIDELLA. 


eee NAUTILUS. 


Von. XXII. DECEMBER, 1907. No. 8. 


ON A CYMATIUM NEW TO THE CALIFORNIAN FAUNA. 


BY WM. H. DALL. 


Having heard from Dr. R. H. Tremper that he had recently 
obtained from the fishermen of San Pedro, a species of Cymatium 
which could not be referred to any of the forms heretofore known 
from that region, he was requested to send the specimens for exam- 
ination. 

A careful study of it shows that it is different from any member of 
the group previously known from either coast of America, but so 
close to the Mediterranean ‘ 7riton”’ corrugatus Lamarck, that 
it seems impossible to separate it more than varietally. 

Cymatium corrugatum var. Tremperi nov. Shell agreeing closely 
with C. corrugatum except in the following particulars: the perios- 
tracum in the latter is light colored, velvety, with the processes or 
hairs of a uniformly even length; in Tremperd it is blackish-brown, 
coarse, lamellose with, on the varices, strong, sparse, projecting hairs 
reaching 6 mm. in length. In all the specimens I have examined of 
the Mediterranean shell, there are, between the revolving primary 
ribs, numerous small subequal minor threads; while in Tremperi 
there are in the channels only one or two coarse, irregular, markedly 
larger riblets. The other differences are all apparently of an 
individual character. The shell measures: length 85; aperture, 
including the canal, 36; max. diam. 388 mm. There are five rather 
prominent axial ribs on the last whorl between the last pair of vari- 
ces. The operculum is exactly like that of the Mediterranean form. 


86 THE NAUTILUS. 


The animal was alive when captured, and was brought up from a 
depth of about 42 fathoms, bottom temperature about 51° Fahr. 
I have not been able to compare it with the C. Krebst Morch of the 
Antilles, which is said to have a short spire. 

The discovery of this species adds another to the list of Mediter- 
ranean forms which reappear either directly or by closely related 
varieties or species, on the Pacific coast, attention to which had been 
called already by the late Dr. Philip Carpenter. Among them are: 


California. 


Cymatium var. tremperi, 
Leptothyra carpenteri, 
Gibbula canfieldi, 
Williamia peltoides, 
Arctonchis borealis, 
Leda cuneata, 

Crenella decussata, 
Verticordia novemcostata, 
Lima orientalis, 

Zirphea crispata, 
Platidia anomioides, 


Mediterranean. 


C. corrugatum, 
L. sanguinea, 
G. adriatica, 
W. gussoni, 
A. celtica, 

L. cuneata, 

C. decussata, 
V. novemcostata, 
L. tenera, 

Z. crispata, 

P. anomioides. 


To these many more might be added without stretching the com- 
parisons unduly. 


A NEW MEXICAN MUSSEL, LAMPSILIS FIMBRIATA. 
BY L, S. FRIERSON. 


LAMPSILIS FIMBRIATA, N. Sp. 

Shell large, elliptical, thin, and compressed. Dorsal line incurved 
in front of the beaks. Anterior margin somewhat obtruded, and 
obtusely pointed or sharply elliptically curved. Basal margin nearly 
straight, occasionally slightly arcuated. Posterior margin broadly 
roundly biangular. Beaks low, and without sculpture. Posterior 
ridge elevated, rounded and obsolete. The greatest diameter of 
the shell being about the center of the ridge. Sides flattened, and 
generally somewhat constricted in the middle. Behind the posterior 
ridge, down the siphonal area extends a raised line, enclosing a tri- 
angular area (having its apex at the beak) which is sculptured 


THE NAUTILUS. 87 


with small pustules arranged in upcurved lines. Epidermis 
yellow, horn color, sometimes obsoletely rayed, on the posterior slope. 
The shell would seem to be nearly smooth, but in all the specimens 
seen there are numerous irregular, radial, pit-like impressions and 
concentric striae, and shallow sulci. The radial impressions or pits, 
extend through the shell, and are visible inside and out. Hinge 
ligament, stout and ratherlong. Muscle scars well marked, separate 
in front, confluent behind. Teeth stout, double in the left, and 
single in the right valve. Beak cavities shallow, with a row of 
muscle scars running downward, forward and onto the base of the 
cardinal tooth. Nacre white, flesh color or dark purple, very 
irregularly laid on, and very thin. Except in old shells, the pris- 
matic structure extends far beyond the nacre, and the epidermal 
layer, in turn, extends still further. 

Length 80, height 47, diameter 25 mm. 

Habitat: Valles River.—Collected by Mr. A. A. HInKLeEy. 

A cotype in coll. A. N. S. Phila., measures, length 81, height 51, 
diam. 22 mm. 

The shell is not related very closely to any species that I know of. 
In fact Iam undetermined whether to place it in Lampsilis or in 
Nephronaias. In the absence of any data regarding the animal, it 
is provisionally placed in Lampsil’s. Mr. Hinkley informs me that 
it is near to, if not identical with an undescribed species labeled by 
Mr. Chas. F. Simpson as Lampsilis salinasensis, which however Mr. 
Simpson has not described, and which he informed me, he does not 
intend doing. 

The prismatic layer is ,3, inch wide at the edge in some cases. 
This peculiarity accounts for the pitting, and numerous irregular 
suleations being, it is evident not normal, but the result of numer- 
ous accidents which befall the extremely delicate edge of the shell. 

Plate 12, two upper figures represent the type specimen; lower 
left-hand figure is a young shell. 


THE GRAVID PERIODS OF UNIOS. 


BY CHARLES H. CONNER. 


About four years ago, I began to collect systematically data rela- 
tive to the gravid periods of Unios. Some of the results are pre- 
sented herewith, in the hope that they will be of interest. 


88 THE NAUTILUS. 


The scene of most of my observations has been along the Delaware 
river and Big Timber creek, in the vicinity of Newbold and Wash- 
ington Park, New Jersey. 

All along the extensive flats there mussels abound, and their empty 
shells lie scattered along the banks in thousands. 

For the purpose of these observations I have made it a point to 
patrol that section at low tide some time during every month of the 
year. 

The work has been attended by many disadvantages, otherwise I 
should have been able to present a complete record of the matter. 

The varying periods during which the glochidia are extruded by 
the various species, tends (so it appears to me) to effect their distri- 
bution ; those spawning when fish are migrating, for instance, would 
have their distribution extended farther, or more rapidly than otber 
species. Of the species hereabouts, Unio complanatus (Sol.), has 
given me the best results for the labor expended. My records show 
that they are gravid but once annually, from April-May to July— 
August, or, approximately, during four months of the year. 

I have found Lampsilis radiatus (Gmelin), and Unio nasutus 
(Say) gravid all the year around. Both appear to spawn in June 
and November, if not also at other times. All the individuals do 
not spawn at the same time. On June 22, 1907, 1 found some 
U. nasutus with the gills half empty, and some still full. 

Anodonta cataracta (Say) is gravid about eight months in the 
year, the interim occurring during the warm period (May—October). 
I have found them gravid as late as May 27, and as early as October 
13. Ihave found them spawning the latter part of December, to 
the early part of January * which indicates approximately, as is the 
case with U. complanatus, a gravid period of about four months. 

I have had the good fortune to discover the use of the byssus also. 
I isolated a gravid specimen in an aquarium, and when the glochidia 
were extruded, using a magnifying glass, I discovered several of 
them, with the valve opened wide, hanging suspended by the byssus, 
from the Anacharis canadensis plants with which the aquarium was 
stocked.f 

From further observations it appears that they hang thus sus- 


* Nautizus, Vol, XIII, pp. 142. 
+ April 19, 1905, Anodonta cataracta, Say. 


THE NAUTILUS. 89 


pended, and when a passing fish touches them they fasten upon it by 
means of the hooks, and the glochidium is wrenched from its moor- 
ing. I observed frequently the sudden jump which my goldfish 
made, and I afterwards found glochidia attached to them. 


A NEW ZONITOID SHELL FROM THE MIOCENE, FLORISSANT COLORADO. 
BY T. D. A. COCKERELL. 


Although fresh-water shells (Lymnea, Planorbis and Spherium) 
are abundant in the Florissant shales, terrestrial species are ex- 
tremely rare. In 1906 we found a species of Omphalina, in a frag- 
mentary condition. The 1907 expedition has yielded a better- 
preserved specimen which is referred to Vitrea. 


VITREA FAGALIS 0. sp. 


Diameter 7 mm. ; with seven and a half closely coiled whorls, the 
first three not increasing at ail, but having a uniform diameter of 
about 340 micromillimeters; the fourth barely larger, diam. about 
357 m.; the fifth with diam. about 391 m.; the sixth twice as 
broad as the inner ones; the seventh much larger, diam. 1 2 mm. 
Last whorl very smooth and shining, not or hardly striate, but inner 
whorls delicately striate, with the exception of the apical whorl and 
a half, which are quite smooth. Spire gently convex, the sides 
regularly ascending to the apex. No internal lamella, so far as can 
be seen. One example, with reverse; ona slab with a leaf of Fagus, 
showing that it probably lived in the proximity of that tree. 

This shell appears to be a Puravitrea, very close in all respects to 
Vitrea andrewse. In the number of whorls and absence of in- 
ternal lamelle, it is like V. placentula; but the whorls appear to be 
more closely coiled than in that species, and the radial sculpture is 
much closer and less regular. 

The resemblance of the Florissant flora to that of the uplands of 
the southeastern states has already been noted; the discovery of 
Vitrea fagalis, and the previous finding of Omphalina, point in a 
similar direction. 


90 THE NAUTILUS. 


A NEW CALIFORNIAN VERTIGO. 
BY V. STERKI. 


VERTIGO OCCIDENTALIS, n. sp. Plate XI, fig. 2. 


Shell of the shape, size and appearance of a smaller Vert. ovata 
Say, but perforated; short ovate, chestnut-colored, transparent ; 
slight impressions over the palatal folds, no crest, no callus inside ; 
lamellae and folds: parietal and angular close together, coherent, 
short, low, somewhat massive; columellar only indicated by a slight, 
angular projection; the two palatals quite small, short, the upper 
closer to the margin. Alt. 2 mill. Soft parts not seen. 

Habitat: San Bernardino Mts., California, at alt. 7600 feet, col- 
lected in the summer of 1907, by Mr. S. S. Berry, one specimen. 

It is rather inopportune to establish a species on a single speci- 
men. But the one seen is mature, with no trace of a deformity, and 
with all its external resemblance to V. ovata, is evidently distinct. 
It has been carefully compared with many ovata from New Mexico, 
Arizona, California e. g., the Cuyamaca Mts. near San Diego, to 
Montana and Washington, etc. None of them was perforated, and the 
lamelle and folds of ocetdentalis are different as to size, shape and 
location from those of ovata, even in immature specimens. It has 
been pointed out, years ago, that their location and shape are of 
more consequence than their mere presence or absence, at least in 
some forms. 


NOTES. 


Specimens of Planorbis magnificus Pilsbry have been kept alive in 
small aquaria at the National Museum for more than a year. Those 
which were adult when collected in 1906 (October) are all dead, 
apparently from old age, but before dying they left progeny now 
about six months old and one-third grown. It is therefore probable 
that the life of the species is about two years in length. The young 
have well-pigmented eyes, in the usual situation, but in the adult 
these have so degenerated that no trace of pigment or lens is visible 
in the living animal by transmitted light. Their favorite food is 
lily-pads, which they devour with great rapidity and on the lower 
surface of which they are most likely to be found.--W. H. Dart. 


THE NAUTILUS. 9] 


AMONG common “ beach-stuff” from the Florida Keys the writer 
recently found a well-preserved sinistral specimen of Marginella 
apicina Menke, in excellent condition, —W. H. DAut, 


Me. E. W. Girrorp of Alameda, California, while collecting on 
the “ planted” oyster beds of San Francisco Bay last July, found 
Ilyanassa obsoleta Say living in abundance. This is the first time it 
has been reported from the coast. The drills, Urosalpinx cinereus, 
which had previously been numerous, seemed to have all died, at 
least none living were found.—W. H. Datu. 


Messrs. Ferriss AND DANIELS have just returned from a col- 
lecting trip in Arizona. Several new and interesting species of 
Sonorella and Ashmunella are among the spoils. Some account of the 
expedition will be given next month. 


HELIX HORTENSIS ON Bass Istanp, Me.—While at Kennebunk- 
port, Me., thissummer, Mr. John B. Henderson discovered that Bass 
Island at Cape Porpoise was well stocked with H. hortensis, so I 
made a trip over there, and in about an hour collected seventy-five 
specimens. The ground and weeds were covered with young shells, 
but the adults were not so plentiful, as the field mice (?) are good col- 
lectors and make a specialty of fine large shells, and when they get 
through with them the shells are of very little use to the two-legged 
collector. Also saw a good many Polygyra albolabris, which had 
been eaten, but only found one alive. The specimens of Helix hor- 
tensis show the following variations : 


Bands, No, Specimens. 
12345 19 
12345 Transparent bands, Var, arentcola MacGill. 4 


12300 Transparent bands, faint. 1 
00345 Transparent bands, faint. 1 
12345 (Two broken, almost gone). 1 
00300 Band distinct. 3 
00300 Band faint and broken, but in most of them the 

band is more or less transparent, some also 


show traces of other transparent bands. 35 
00000 Yellow. 9 
00000 Whitish, 2 


Total 75 


92 THE NAUTILUS. 


Band 3 is the one most persistent, and even in the shells which I 
have put down as 00000 yellow there is a very faint indication of it. 
In many of the 35 this band shows as a distinct patch back of the 
lip, with fragments at other places, while the balance of the band is 
more or less transparent as in Var. arenicola. 

At Bar Harbor and on Bar Island, Frenchman’s Bay, Mr. Hen- 
derson and I collected a number of hortenszs all of which are 00000, 
and of a bright-canary yellow.—Gero. H. Capp. 


SHELLS or La JoLia, CALIFORNIA.—Having read an article in 
the Nautitus by my friend Mr. Maxwell Smith about the con- 
chology of La Jolla, Cal., I send a list of a few species which were 
not mentioned in Mr. Smith’s article, but which I think are of in- 
terest in this connection, as one species has not been found in Cali- 
fornia before to my knowledge. 

Zirphaea crispata. 

Nettastomella darwinii. 

Macoma secta. 

Modiola recta. 

Bryophila setosa. One collected by Mr E, P. Rawle of Phila- 
del phia. 

Leda hamata. 

Yoldia cooperi. 

Dentalium pretiosum. 

Chromodoris porterae. 

Hopkinsia rosacea. 

Diaulula sandiegensis. 

Triopha maculata, 

Aplysia californica. 

Circinaria transfuga. 

Marginella regularis. 

Eulima bistorta. 

Eulima compacta. 

Odostomia terricula. 

Crucibulum imbricatum. 

Crepidula excavata. 

Acmaea pelta var. nacelloides. 

Acmaea pelta. 


THE NAUTILUS. 93 


Neritina sp. indet. (perhaps picta?) One specimen found by Mrs. 
Frank Pierce of Madison, Wis. 

Leptothyra bacula. 

Calliostoma gloriosum. 

Ethalia invallata. 

Haliotis cracherodii. 

Nuttallina californica. 

Octopus punctatus. 

These species have all been collected by me except where other- 
wise noted. I was unable to compare the Neritiéna with any 
authentic specimens, but Mr. Kelsey, of San Diego, to whom I men- 
tioned it, said that he had not heard of any Neritina found so far 
north, but thought it might be WV. picta. The specimen of Nuttal- 
lina californica Reeve was a seven-valved individual. 

JosHua L. BAILy, JR. 


Cuar_es Austin Dayton.—We regret to announce the death of 
Mr. C. A. Dayton who died at his residence in Brooklyn, N. Y., 
Nov. 7, 1907. 

Mr. Dayton was a lifelong admirer and collector of shells, and was 
widely known through his correspondence with collectors. He was 
the first president of the Brooklyn Conchological Club and a regular 
attendant at its meetings until his recent illness confined him to his 
home. He possessed in high degree all those qualities which make 
the honored citizen and the esteemed friend.—Sitas C. Wueart. 


A CONTRIBUTION TO TUE FAUNA OF THE Coast OF LouISIANA. 
—By L. R. Cary (Gulf Biologic Station Bull. No. 6, Cameron, La.), 
A considerable list of mollusks is given, pp. 54-58. 


BULLETIN OF THE BUFFALO SOCIETY OF NATURAL SCIENCES, 
Vol. VIII, No. 6 (1907) contains an interesting historical sketch of 
the Society, illustrated with portraits of the presidents and other 
men of science prominent in its annals. 


94 THE NAUTILUS. 


PROPOSALS FOR AN AMERICAN CONCHOLOGICAL SOCIETY. 


The Brooklyn Conchological Club, which has maintained a suc- 
cessful organization for several years, proposed last May the forma- 
tion of a society of national scope, appointing a committee to form 
a preliminary organization. This committee elected the following 
officers: President, Dr. H. A. Pilsbry, Philadelphia; Vice-Presi- 
dent, Louis A: Gratacap, New York; Treasurer, Silas C. Wheat, 
Brooklyn ; Secretary, Maxwell Smith, New York. These officers 
to serve until a permanent national organization can be formed. 

At the International Zodlogical Congress held in Boston in 
August, those interested in mollusks held an impromptu meeting, 
and appointed the following committee to consider the question of 
organizing a society: Dr. W. H. Dall, Dr. H. A. Pilsbry, Elizabeth 
J. Letson, Silas C. Wheat, John Ritchie, Jr. 

If sufficient interest in the proposed society is manifested a perma- 
nent organization will be effected. A general expression of the feel- 
ing among conchologists towards the project is desired. 

Suggestions may be sent by those interested to Mr. Maxwell 
Smith, Secretary, 265 West 72d street, New York City. or to the 
Editors of Tue Nautitus. It is hoped that some abstract of the 
responses may be received in time for publication in the issue of 
January Ist next. 

Dr. Dall, Chairman of the Boston Committee, has drafted the 
following : 


MEMORANDUM OF SUGGESTIONS FOR THE ORGANIZATION OF AN AMERICAN 
CoNCHOLOGICAL ASSOCIATION OR SocIETY. 


NamME.—The American Conchological Society would be better than 
““ NATIONAL,” as Mexican, Cuban, or Canadian members, whom it would be de- 
sirable to include, might object to the term ‘‘ National” as excluding them. 


OrricE.—To promote intercourse between the students of Mollusca, recent or 
fossil, in North America, the Antilles and Hawaii; to encourage the study of 
Mollusks by meetings and publications, or other means suitable for the pur- 
pose, and to interest the general public in the study of shells. 


Orricers,—The officers shall comprise a president, a vice-president for each 
section, a general secretary and a treasurer, and an executive council consist- 
ing of nine members, 


MEMBERS.—The membership of the Society shall be divided into the follow- 


THE NAUTILUS. 95 


ing classes: Patrons, life members, active annual members, associates, and 
corresponding members. A limited number of honorary corresponding mem- 
bers may be authorized by the council if deemed desirable. 


QuaALIFIcaTions.—A patron shall be a donor to the Society of any sum ex- 
ceeding the total of two life-membership fees, and shall be entitled to all pub- 
lications of the Society and to receive gratis any periodical which may be dis- 
tributed, as its organ, to the members by the Society. A life membership may 
be secured by the payment to the Society’s treasurer of the sum of one hun- 
dred dollars; active membership by the annual payment in advance of the sum 
of five dollars ;! associate membership by the annual payment in advance of 
one dollar and a half by American associates and two dollars by foreign asso- 
ciates or corresponding members. Honorary members may be relieved of pay- 
ment at the time of election by the vote of the executive council. 

All members shall be nominated to the council by the application of any 
three members or associates in good standing through the secretary, and shall 
be elected by a majority vote of the council, but no election shall be deemed 
effective until the treasurer has received the first annual subscription from the 
nominee, and the publications of the Society shall not be sent to any member 
subsequently, more than two months in arrears. All membership fees shall be 
due and payable at the beginning of the year, and no subscription for the ben- 
efit of any member or associate to the organ of the society shall be made by the 
treasurer until this annual fee shall have been paid. 


Srctions.—To facilitate local intercourse by meetings or otherwise, the So- 
ciety may establish sections for the members of the Atlantic coast, Pacific 
coast and Mississippi valley (or other) regions. Meetings within each sectional 
area may be arranged by the local sectional vice-president, and the members 
of the section may elect temporary officers, except the vice-president when 
present, and by a majority vote assess such local subscriptions as may be 
needed to carry on local work in addition to the regular annual fees. 


NoMINATIONS AND ELEctions.—Owing to the scattered distribution of the 
membership, voting may be by ballot mailed to the secretary, who shall an- 
nounce the result through the organ of the Society, in the number next follow- 
ing the limit fixed for counting the vote, but no votes by proxy shall be 
accepted, 

Nominations for officers may be made by any three members or associates, so 
as to be announced at least one month before the annual election in the So- 
ciety’s organ. Nominations for membership may be made at any time, but at 
least one month before they are to be acted upon. 

The secretary, treasurer and members of the executive council shall be active 
or life members, and serve until the election of their successors, Elections 
shall be annual. The president, vice-presidents, secretary and treasurer shall 


Members of the Brooklyn Club and some others think the annual dues 
would better be fixed at two or three dollars. 


96 THE NAUTILUS. 


be ex-officio members of the Council. The term of office for the members ot 
the Council (not ex-officio) shall be three years, but three members shall retire 
each year, and of the nine members elected to the Council at the first election 
three shall serve one year, three two years, and three the full term, the indi- 
viduals to be determined by lot; after which three members shall be elected 
annually, 


Tue Counci,.—The Council shall conduct the business of the Society, elect 
members, control expenditures, audit the treasurer’s accounts, prescribe the 
duties of Secretary and Treasurer, make rules or by-laws to carry out the de- 
tails of the organization of the Society, and shall annually report to the So- 
ciety at least one month before the annual election. All new members or 
associates shall be elected by a majority vote of the Council, not less than five 
members constituting a quorum. 


ActTiyE MrmsBers.—Active members shall be elected from those persons 
actively engaged in research, tne collection, or the study of the Mollusca, and 
their qualifications shall be stated in the nomination papers. Associates may 
be any one of good character interested in the general subject or the study of 
natural history, Corresponding members shall be residents of foreign countries. 


OrriciAL OraaNn.—The Council may select a periodical, not issued by the 
Society, as its official organ, and may from the annual fees pay such subscription 
for the several members and associates as may be arranged for with the pro- 
prietors of such periodical, 


AMENDMENTS TO THE ConsTITUTION AND By-Laws.—The constitution may be 
amended by a majority vote of the life and active members at any annual 
meeting, provided notice of the proposed amemdment shall have been given in 
the official organ at least three months previously. Amendments to the by- 
laws may be made at any meeting of the Council called for the purpose, at 
least one month’s notice having been given to the members of the Council. 


PERMANENT FUNDS AND EXPENDITURES.—The sums paid in by patrons and 
life members shall be invested and constitute a permanent fund, of which the 
interest only shall be available for expenses as directed by the Council. All 
expenditures must be authorized and all investments approved by a vote of the 
Council, which shall have the Treasurer’s accounts annually audited, the re- 
sult to be included in the annual report to the Society. 


Loss or MreMBERSHIP.—Any member or associate two months in default in 
his annual subscription shall be notified by the Secretary, and any member or 
associate who shall be over one year in arrears shall, ipso facto, lose member- 
ship; provided that, on a majority vote of the Council and payment of all ar- 
rearages, such member or associate may be reinstated without a formal 
re-election. 


E>) 


ie? NAUTILUS. 


Vou. XXII. JANUARY, 1908. No. 9. 


POMATIOPSIS ROBUSTA N. SP. 


BY BRYANT WALKER. 


Shell ovate-conic, perforate, smooth and shining, lines of growth 
subobsolete; light greenish-yellow becoming lighter towards the 
apex ; spire elevated, apex blunt, the initial whorl being perceptibly 


flattened. Whorls 54, convex, with a well impressed fs 
suture, body whorl large and inflated. Aperture A 
ovate, narrow above and well rounded below, between Qi 
one-third and one-half of the length of the shell; | \) 
peritreme continuous and adnate to the parietal wall \ 
above the perforation ; lip sharp. a 

Alt. 6, diam. 34 mm. : 

Jackson Lake, Wyoming. 

Type in the collection of A. A. Hinkley, Du Bois, Ill. 

Although only a single specimen of this species was found, it is so 
obviously distinct from any of the known species of the genus, that 
I do not hesitate to describe it. 

It is a much stouter shell than P. Ainkleyi and differs from both 
that and californica in the less convex whorls and less impressed 
suture. In these particulars it resembles more P. lapidaria, but 
differs from that entirely in shape. The narrow perforation and 
sharp lip as well as the general contour easily separate it from P. 
cincinnatiensis. 


98 THE NAUTILUS. 


A COLLECTING TRIP AT NORTHPORT, N. Y. 
BY WM. H. WEEKS, JR. 


It was my good fortune to have a vacation during the month of 
October, and I decided to go to Northport, in search of shells, 
Northport is situated on a fine harbor on the north shore of Long 
Island, some forty miles from New York City. The conchologist 
here has a fine field before him for work, and if not easily discour- 
aged, shore-collecting will yield good results. It usually means 
however long tramps each day of some five to ten miles. I expected 
to use the dredge but could not make satisfactory arrangements. It 
is here that the scallop (Pecten borealis) abounds, but this year only 
small quantities have been brought in by fishermen, and the much- 
prized red variety is decidedly scarce. 

Where I had found some five years ago countless numbers of 
Crepidula convexa on the beach not a specimen was to be seen, but 
a few were gathered at low tide from dead specimens of Litorina 
littorea and Nassa obsoleta. Mya arenaria were everywhere on the 
beach in fine order, and also many Hnsis directus. Usually one has 
to dig for them. Levicardium mortoni were found in small colonies 
and seemed to be larger than usual. Numerous odd valves of 
Astarte undulata were taken at low tide. It is evidently a deep- 
water species. No search was made for land shells. The following 
is a list of species obtained : 

Ostrea virginica Gmel., cultivated extensively. 

Anomia simplex Orb., abundant. 

Pecten gibbus var. borealis Say, fairly common. 

Mytilus edulis Linn., abundant. 

Modiolus modiolus Linr., scarce. 

Modiolus demissa var. plicatula Lam., abundant. 

Arca transversa Say, abundant. 

Arca pexata Say, abundant. 

Astarte undata Gld., odd valves. 

Laevicardium mortoni Conr., fairly common. 

Venus mercenaria L., abundant. 

Petricola pholadiformis Lam., fairly common. 

Tellina tenera Say, one specimen. 

Macoma balthica Linn., scarce. 


THE NAUTILUS. 99 


Ensis directus Conr., abundant. 

Spisula solidissima Dillw., fairly common. 
Mulinia lateralis Say, scarce. 

Lyonsia hyalina Conr., scarce. 

Mya arenaria Linn., common. 

Busycon canaliculata Say, fairly common. 
Busycon carica Gmel., fairly common. 
Nassa trivittata Say, fairly common. 
Nassa obsoleta Say, very abundant. 
Nassa vibex Say, scarce. 

Astyris lunata Say, scarce. 

Eupleura caudata Say, scarce. 
Urosalpinx cinereus Say, common. 
Odostomia trifida Totten, scarce. 

Bittium nigrum Stimp, common. 
Litorina rudis Donov., common. 

Litorina littorea Linn., very common. 
Crepedula fornicata Linn., common. 
Crepedula plana Say, common. 
Crepedula convexa Say, scarce. 

Neverita duplicata Say, fairly common. 
Chaetopleura apiculata Say, scarce (usually on oysters). 


A LIST OF THE LAND SHELLS OF LEE COUNTY, FLORIDA. 
BY E. G. VANATTA. 


The following species were collected in Lee County, Florida, by 
Mr. Clarence B. Moore. The smaller forms were picked from leaf- 
mould sent in bags, each with the exact locality carefully marked 
on it. 

Practically nothing has been known hitherto of the land-snail 
fauna between Key Marco and Cape Florida, the Ten Thousand 
Island region being accessible only to the collector cruising in his 
own boat. 

It is interesting to note the occurrence of Bifidaria rhoadsi Pils. 
and Vertigo variolosa Gld. on the west coast of Florida; also that 
many of the shells of Zonitoides minuscula Binn, have internal 


100 THE NAUTILUS. 


lamine or teeth. The use of the name Huglandina rosea Fer. in- 
stead of Glandina truncata has been explained by Dr. Pilsbry in the 
last number of the Manual of Conchology, p. 191. All the speci- 
mens listed are in the collection of the Academy of Natural Sciences 
of Philadelphia. 


Blue Hill Id., near Goodland Point, Marco Key. 


Truncatella bilabiata Pfr. 
Thysanophora selenina Gld. 

Polygyra cereolus f. carpenteriana Bld. 
Polygyra uvulifera Shutt. 

Drymeus multilineatus Say. 
Euglandina rosea Fer. 

Euglandina rosea parallela Binn. 


Buttonwood Key. 
Polygyra cereolus f. carpenteriana Bld. 
Bifidaria p. hordeacella Pils. 
Bifidaria rupicola Say. 
Zonitoides singleyana Pils. 


Chokoloskee Key. 
Pupoides modicus Gld. 
Bifidaria rupicola Say. 
Zonitoides minuscula Binn. 


Dismal Key. 
Truneatella bilabiata Pfr. 
Helicina orbiculata Say. 
Thysanophora plagioptycha Shutt. 
Polygyra cereolus f, carpenteriana Bld. 
Strobilops hubbardi A. D. Brown. 
Pupoides modicus Gld. 
Bifidaria rhoadsi Pils. 
Bifidaria p. hordeacella Pils. 
Bifidaria rupicola Say. 
Microceramus floridanus Pils. 
Euglandina rosea parallela Binn. 
Vitrea dalliana ‘ Simpson’ Pilsbry. 
Guppya gundlachi Pfr. 
Zonitoides minuscula Binn. 
Zonitoides singleyana Pils. 


THE NAUTILUS. 


Fakahatchee Key. 


Truncatella bilabiata Pfr. 
Helicina orbiculata Say. 
Thysanophora selenina Gld. 
Polygyra cereolus f. carpenteriana Bld. 
Pupoides modicus Gld. 
Bifidaria rupicola Say. 
Microceramus floridanus Pils? (young). 
Drymeus (young multilineatus Say ?) 
Drymeus dominicus Rve. 
Euglandina rosea Fer. 
Euglandina rosea parallela Binn. 
Vitrea dalliana ‘Simp.’ Pils. 
Guppya gundlachi Pfr. 
Zonitoides minuscula Binn. 
Georgia Fruit Company’s land, S. of Marco. 
Praticolella jejuna Say. 
Vitrea dalliana ‘ Simp.’ Pils. 
Guppya gundlachi Pfr. 
Gilberts (near Matanzas Pass). 
Polygyra cereolus f. carpenteriana Bld. 
Pupoides modicus Gld. 
Bifidaria p. hordeacella Pils. 
Bifidaria rupicola Say. 
Vitrea dalliana ‘ Simp.’ Pils. 
Guppya gundlachi Pfr. 
Zonitoides minuscula Binn. 
Zonitoides singleyana Pils. 
Goodland Point, Marco Key. 
Polygyra c. f. carpenteriana Bld. 
Bifidaria p. hordeacella Pils. 
Euglandina rosea Fer. (near parallela Binn.) 
Zonitoides minuscula Binn. 
Succinea floridana Pils. 
Little Marco. 


Truncatella caribeensis succinea C. B. Ad. 
Truncatella bilabiata Pfr. 


101 


102 THE NAUTILUS. 


Helicina orbiculata Say. 

Helicina orbiculata var. clappi Pils. Mss. 
Thysanophora plagioptycha Shutt. 
Polygyra cereolus f. carpenteriana Bld. 
Polygyra uvulifera Shutt. 

Bifidaria contracta Say. 

Bifidaria p. hordeacella Pils. 

Bifidaria rupicola Say. 

Vertigo variolosa Gld. 

Microceramus floridanus Pils. 
Euglandina r. parallela Binn. 

Vitrea indentata Say. 

Vitrea dalliana ‘ Simp’ Pils. 

Guppya gundlachi Pfr. 

Zonitoides minuscula Binn. 

Zonitoides singleyana Pils. 


Marco, N. end of Marco Key 
Polygyra cereolus f. carpenteriana Bld. 
Bifidaria p. hordeacella Pils. 
Bifidaria rupicola Say. 
Euglandina rosea Fer. 
Euglandina rosea parallela Binn. 
Vitrea dalliana ‘Simp.’ Pils. 
Guppya gundlachi Pfr. 


Mound Key, Estero Bay. 
Truncatella caribeensis succinea C. B. Ad. 
Truncatella bilabiata Pfr. 
Helicina orbiculata Say. 
Thysanophora plagioptycha Shutt. 
Polygyra cereolus f. carpenteriana Bld 
Pupoides modicus Gld. 
Bifidaria contracta Say. 
Bifidaria p. hordeacella Pils. 
Bifidaria rupicola Say. 
Euglandina rosea parallela Binn. 
Euglandina rosea minor Binn. 
Guppya gundlachi Pfr. 
Zonitoides minuscula Binn. 
Succinea floridana Pils. 


THE NAUTILUS. 103 


Nameless Key (Mr. Addison’s) two miles east of Marco. 


Helicina orbiculata Say. 
Thysanophora selenina Gld. 
Polygyra cereolus f. carpenteriana Bld. 
Pupoides modicus Gld. 

Bifidaria contracta Say. 
Bifidaria p. hordeacella Pils. 
Bifidaria rupicola Say. 
Microceramus floridanus Pils. 
Euglandina rosea parallela Binn. 
Vitrea dalliana ‘ Simp’ Pils. 
Guppya gundlachi Pfr. 
Zonitoides minuscula Binn. 
Zonitoides singleyana Pils. 


Near Punta Rassa. 
Truncatella bilabiata Pfr. 
Polygyra cereolus f. volvoxis Pfr. 
Euglandina rosea parallela Binn. 


Aboriginal shell-heap about one mile east of St. James, Pine Island. 


Truncatella clathrus Lowe. 
Truncatella caribeensis ‘ Sby.’ Rve. 
Truncatella caribeensis succinea C. B. Ad. 
Truncatella bilabiata Pfr. 
Praticolella jejuna Say. 

Polygyra cereolus f. volvoxis Pfr. 
Bifidaria p. hordeacella Pils. 
Bifidaria rupicola Say. 

Guppya gundlachi Pfr. 

Zonitoides minuscula Binn. 
Zonitoides singleyana Pils. 


Pine Jand, N. W. end of Pine Island. 
Helicina orbiculata Say. 
Bifidaria contracta Say. 
Bifidaria p. hordeacella Pils. 
Bifidaria rupicola Say. 
Euglandina rosea Fer. near var. parallela Binn. 
Guppya gundlachi Pfr. 
Zonitoides minuscula Binn. 


104 THE NAUTILUS. 


N. E. end Pine Island, Lee Co., Florida. 


Euglandina rosea parallela Binn. 


Russell’s Key. 


Helicina orbiculata Say. 

Helicina orbiculata var. clappi Pils. Mss. 
Thysanophora selenina Gld. 
Thysanophora plagioptycha Shutt. 
Polygyra cereolus f. carpenteriana Bld. 
Pupoides modicus Gld. 

Bifidaria p. hordeacella Pils. 

Bifidaria rupicola Say. 

Microceramus floridanus Pils. 
Euglandina rosea parallela Binn. 
Guppya gundlachi Pfr. 

Zonitoides arborea Say. 

Zonitoides singleyana Pils. 


Turner Place, Turner River (a key near Chokoloskee). 
Truncatella bilabiata Pfr. 
Polygyra cereolus f. carpenteriana Bld. 
Polygyra uvulifera Shutt. 
Bifidaria rupicola Say. 
Microceramus floridanus Pils. 
Euglandina rosea parallela Binn. 
Vitrea indentata Say. 
Zonitoides minuscula Binn. 


About five miles up Whitney River (mainland). 
Polygyra cereolus f. carpenteriana Bld. 
Bifidaria rupicola Say. 
Euglandina rosea parallela Binn. 
Guppya gundlachi Pfr. 
Wiggins’ Key, Sandfly Pass. 


Euglandina rosea parallela Binn. 


Lossman’s Key. 


Euglandina rosea minor Binn. 


THE NAUTILUS. 105 


CANCELLARIA OBTUSA DESH. 
BY SLOMAN ROUS. 


Among some shells handed to me by my friend Mr. D. W. 
Ferguson, of Brooklyn, is a specimen of Cancellaria obtusa Desh. 
Tryon writing in 1885 says (Man. of Conch., Vol. VII, p. 68): 
‘©The unique specimen formed part of the Cumingian collection. 
Hab. unknown.” As far as I am aware no other specimen has 
since been recorded, and it seems worth while to note the appear- 
ance of another specimen and at the same time to amplify the some- 
what meager description given in the Manual. 

The specimen is unfortunately what is called a dead shell but it 
retains its color and is perfect, its principal imperfection being a 
worm groove in the aperture, but this in no way detracts from show- 
ing its characteristics and the species can be perfectly described from 
the specimen. 

Spire much depressed, regularly spirally costate, the ridges 
flattened, the intervening grooves about half the width of the ridges, 
growth lines somewhat obsolete, but deeply pitted where they cross 
the spiral grooves; light yellowish-brown; whorls three; rather 
narrowly umbilicate, columellar plications three, the inferior some- 
what obsolete, upper part of aperture very heavily calloused, aper- 
ture white. Lon. 24, lat. 18 mm. Hab. Panama. 

Mr. Ferguson received this specimen with a number of other 
species from Mr. McNeill, well known as a collector of shells of 
Central America, Panama, etc. All were labeled Panama, and all 
the other species were undoubtedly Panama shells. I think there is 
but little doubt but that this habitat will prove correct. 


NOTES. 


MuREX CARPENTERI, FORM ALBA.—During the past year the 
fishermen of Newport, Orange County, California, have brought up 
a number of specimens of Murex carpentert Dall, in their nets. 
Most of them are the ordinary form, but among them are two or 
three specimens of a pure white color, showing little or none of the 
usual brownish coloration so characteristic of the species. This isa 
really beautiful variation, but as yet it seems to be very rare. Ac- 


106 THE NAUTILUS. 


cording to the usual custom, this form may be referred to as the 
form or variety alba.—S. 8. Berry. 


TRITON GIBBosUS Brop., 1n CaLirorniA.—Ralph Arnold 
in The Paleontology and Stratigraphy of San Pedro, quotes the 
range of the living J. gibbosus as West Tropical America and 
Panama. At this time Dr. Dall supposed that a single example 
from San Pedro Bay had been washed from the fossil beds on the 
beach. Another writer reports the species from San Pedro Bay 
(see Nautitus, Vol. VII, p. 75). At the time I brought the La 
Jolla material together (NauTiLus, September, 1907), three speci- 
mens were secured by Miss Mary A. Williams, Josbua L. Baily and 
myself. These were not included in the L. J. list, as at the time 
the identity was doubtful. The species can now safely rank in the 
fauna of the state—-MAXWELL SMITH. 


SHELLS OF THE Lake Recion or Maine.—The following mol- 
lusks were collected at Capens, Deer Island, Moosehead Lake, dur- 
ing July, 1907: Polygyra fraterna Say, P. albolabris Say, P. sayana 
Pils., P. dentifera Binn., Vitrea hammonis Strém., Huconulus fulvus 
Mill., Zonitoides arborea Say, Pyramidula alternata Say, P. cronk- 
hitec anthonyt Pils., Sphyradium edentulum Drap., Succinea ovalis 
tottentana Lea, Philomycus carolinensis Bosc., and Planorbis bicar- 
tnatus Say.—C. W. JoHNsOoON. 


Mouuusca or La JOLLA, CaLtirorniA.—To the lists which have 
appeared in the NAUTILUS, the following nudibranchs may be added: 

Chromodoris macfarlandi Ckll. Forms a distinct subgenus or 
genus. 

Chromodoris californiensis Bergh (universitat’s Ckll.). 

Archidoris montereyensis Cooper (?). Specimens immature. 

Cadlina flavomaculata McFarl. 

Cadlina marginata McFarl. (?). Specimens small. 

Doridopsis nigromaculata C. & E. (vidua Bergh, var. (?). 

Thecacera velox Ckll. 

Several others have been found at San Pedro and San Diego, and, 
therefore, may be expected at La Jolla. 

In the Journal of Malacology, 1905, p. 42, is given a brief account 
of anew Zriopha from San Pedro. No specific name was offered, 
because the notes on the external characters had been mislaid. 


THE NAUTILUS. 107 


These have now been recovered, and the animal may take the name 
originally given in MS., 7riophu aurantiaca. It is close to 7. car- 
penteri Stearns, in external characters, but instead of being white it 
is orange, with the appendages tipped with vermilion.—T. D. A. 
CocKERELL. 


HENRY VENDRYES. 


Mr. Henry Vendryes, well known to students of the Jamaican 
fauna, died at Kingston, Jamaica, Nov. 20, 1907, in his 86th year. 

Mr. Vendryes was of French extraction, his father having served 
with Napoleon, and was born on the island Oct. 30, 1822. He be- 
came a student of law with Donald Campbell, a noted solicitor of 
that day. After making a temporary experiment as a business man, 
he soon returned to his first choice. In 1879 he was appointed an 
advocate of the Supreme Court, and was offered but declined the 
position of resident magistrate on the island. He distinguished him- 
self in private practice of the law, and was for a time the editor of a 
local paper now extinct, the “* Colonial Standard.” His accomplish- 
ments in music were exceptional, but it is as a conchologist and the 
friend of conchological students interested in the Jamaican fauna 
that the readers of the Nauritus will chiefly remember him. He 
contributed largely to the cabinets of Adams, Chitty, Bland, Guppy 
and others as their publications show, and was most courteous and 
generous in extending aid to all who were interested in his special 
science. He leaves a large family connection. He suffered serious 
financial losses by the Kingston earthquake, and his uniquely com- 
plete collection of Jamaican shells and fossils has been offered for 
sale, particulars of which can be learned from his late partner and 
son-in-law, Mr. R. W. Bryant, of Kingston. W. H. Dat. 


SOME PERSONAL RECOLLECTIONS OF HENRY VENDRYES. 
BY J. B. HENDERSON, JR. 


The news of Henry Vendryes’ death in Kingston, Jamaica, a few 
weeks ago has awakened many pleasant memories of his personality. 
On our collecting trips to Jamaica, Mr. Simpson and I always paid 
our respects to this veteran conchologist, and we passed many pleas- 


108 THE NAUTILUS. 


ant hours in his “ shell room ”’ 


inspecting his large collections and 
enjoying his generous hospitality. 

Mr. Vendryes was then—ten years ago—an old man carrying 
somewhat unsteadily the weight of seventy-five years, but he radi- 
ated about him the indefinable charm of the gentleman of the old 
school. He talked freely of days in the field with C. B. Adams, 
Chitty and Gloyne, those forefathers of Jamaican conchology, and 
the spirit of their work and methods remained with him, for he 
evolved with difficulty from that conchological era when every 
roundish land shell was a Helix, and every marine shell with a long 
canal stood firmly on the name of Fusus. 

The large collections which he brought together were almost 
wholly made up of Jamaican and Haitan forms both marine and 
land. They were large and of undoubted scientific value, although 
their beauty was marred by the presence of too many dead and worn 
specimens of the commoner species which he seemingly lacked the 
courage to throw away. His shells were mounted upon glass slides 
the specimens fixed by cement and the names and localities painted 
upon the glass in white. What appeared to be a most unsatisfactory 
cabinet method he assured me was made necessary in that tropical 
climate by the swarms of insect pests which would relish paper trays 
and labels. 

Owing to the lack of modern titles in his library Mr. Vendryes 
was much handicapped in his literary labors. He acknowledged the 
necessity of anatomical work and fully approved of the more modern 
methods of biological research, but before such a task as applied by 
himself to his collections he sank back exhausted. 

Notwithstanding such discouragements Mr. Vendryes published 
an excellent list of Jamaica shells which is to-day the best we have, 
and he also had in preparation the great undertaking of a monograph 
of the most exhaustive kind, of the Jamaican fauna. He gave mea 
section of this MS of literally hundreds of pages of closely written 
(in his own hand) observations, critical notes, descriptions, synon- 
omy, etc., and asked me to find a publisher for it in the United 
States. The preparation of this unpublished monograph involving 
as it must have done an enormous amount of physical as well as 
mental effort, was, after all, a labor of love, and from the way he 
handled the MS it was apparent how he loved the monument he was 
with such infinite pains building for himself. 


a ea) a a US Wikis Fay / : PS ee OE Oe eis. eee, 
eee fs ' ' , ‘6 "Wala? ee Syl dy ya. tea gp ee 
Se ol x : rie i* «Ls - sy ae \ Ke 1 
. re ; eine , a | 


THE NAUTILUS PLATE X, 


WALKER: YOUNG STAGES OF ANCULOSA. 


ao 


ee NAUTILUS. 


Vou. XXII. FEBRUARY, 1908. No. 10, 


HYGROMIA HISPIDA (LINNEUS) IN MAINE. 


BY N. W. LERMOND. 


In 1964 I found a snail considerably smaller in size than Polygyra 
fraterna Say, and very numerous on walls of old lime quarries, on 
wooden sidewalks and on the under sides of rocks from the lime 
quarries at Rockland, Knox County, Maine. Specimens sent Dr. 
Pilsbry for identification were pronounced by him Hygromia hispida 
(Linn.), and the first record for this species for the state of Maine. 

In his 1898 list of ** Land Shells of America North of Mexico,” 
on page 3, Prof. Pilsbry gives Hygromia hispida (Linn.) as found 
at Quebee and Levis, Quebec, Canada—‘‘a species of northern 
Europe, imported.” In 1905 I found them quite as plentiful in and 
about old lime quarries at Thomaston, and in 1906 collected them in 
a garden in the same town under cabbage plants. They literally 
‘‘swarmed”’ on the ground and on the under side of the cabbage 
heads. This garden is on the banks of * Mill River,” and near a 
lime kiln. 

This season I found them just as mumerous—and they are by far 
the most abundant species in this locality—in the Rockland and 
Thomaston localities, but have not as yet found them elsewhere in 
the county, although they quite likely are already established in the 
lime quarries of Camden and Rockport. 


110 THE NAUTILUS. 


ON CERTAIN IMMATURE ANCULOSZ. 


BY BRYANT WALKER. 


Anculosa prerosa was described by Say in 1824 from specimens 
collected at the falls of the Ohio. In the following year he de- 
scribed a second species from the north fork of the Holston River in 
Virginia as A. subglobosa. 

In 1838 Dr. Lea described a very small bicarinate species from 
Cincinnati as A. cincinnatiensis, and, in 1845, another species from 
«« Tennessee and Tuscaloosa, Ala.,’’ as A. tintinnabulum. 

Tryon in his preliminary ‘“‘Synonymy of the Strepomatidae”’ 
(1865) stated that cincinnatiensis was ‘‘ undoubtedly the quite young 
of prerosa,” and placed tintinnabulum as a variety under subglobosa. 
He considered A. virgata Lea, a small, smooth, rounded form, to be 
the young of tintinnabulum and A. globula Lea, a very similar but 
more globose shell, the immature form of subglobosa. 

In 1871, Dr. James Lewis published a paper in the American 
Journal of Conchology (VI, p. 216) on the shells of the Holston 
River, in which he identified a small bicarinate form from that river 
as A. cincinnatiensis, and, by a series of specimens graded in size, 
satisfied himself that this form was the young of Lea’s tintinnabulum. 

He further states that ‘‘some of the varieties (so-called) of An- 
eulosa prerosa have bicarinate young, but their forms are such that 
when the dimensions of Mr. Lea’s typical cincinnatiensis (diameter 
.16 inch) they do not exactly, but only approximately, correspond 
thereto, and therefore must yield to the claims of titinnabulum.” 
Dr. Lewis did not specify the peculiar characteristics of the young 
of A. prerosa, as distinguished from the young of tintinnabulum, 
beyond stating that the species is extremely variable and that “in 
one variety carinz are scarcely discernible in the smallest specimens. 
In others there are traces of carine upon shells of nearly or quite 4 
inch in diameter.”’ 

In regard to A. subglobosa he described the young as “ smooth, 
shining, depressed, subglobose, with a somewhat pointed, elevated 
apex,” and states that in his numerous series of that species ‘‘ none 
are carinate, nor can I find any evidence by which I might identify 
subglobosa with tintinnabulum.” 

His conclusion therefore was that Lea’s cincinnatiensis was the 


THE NAUTILUS. 111 


very young of a valid species distinct from both prerosa and sub- 
globosa, of which A. tintinnabulum was the adult form. 

Subsequently Tryon reviewed Dr. Lewis’ paper (Am. Jour. of 
Con., VII, p. 86) and, without discussing at all the facts on which 
the latter had based his conclusions, reiterated his former conclu- 
sions, stating that Mr. Anthony did not find t:ntinnabulum in the 
Ohio, but did find cincinnatiensis, and satisfied himself that it was 
the young of prerosa and that he, himself, had examined “ thou- 
sands of specimens from many localities” and was “‘ fully convinced 
that subglobosa and tintinnabulum are the same species.’’ And this 
position was maintained in his elaborate monograph of the Strepo- 
matide published by the Smithsonian Institution in 1873. 

Since then, so far as I have been able to ascertain, nothing has 
been published on the subject. 

It is obvious that, if these different forms of Anculosa exhibit as 
claimed by Lewis persistent and characteristic differences in the 
young shell, a valuable standard of comparison can be established, 
which will, when thoroughly worked out, enable us to definitely 
determine their relationships and their claims to specific or varietal 
recognition. And although, for a complete solution of the questions 
of synonymy involved, full suites of all ages of all the different forms 
would be necessary, any detailed information will be of value, both 
as leading the way towards the final settlement of the matter and as 
an incentive to further investigation and systematic work in the 
field for the acquisition of the material still necessary for successful 
results. For these reasons, the following notes have been compiled 
and, with full recognition of the fact that they are necessarily in- 
complete and quite insufficient for any broad generalizations and are 
of value only so far as they deal with material under observation, 
are published with the hope that they may lead others to review the 
material in their possession and incite additional effort toward 
securing the missing links. 


I. ANCULOSA PR#ROSA Say. PI. X., figs. 1-6. 


Unfortunately I have not been able to obtain any of the minute 
young of this species from the Ohio River, the smallest specimens 
seen having passed the carinate stage. But from a comparison of 
these with those of corresponding size and development from a very 
complete series of all sizes, ranging from .0125 mm. in diameter to 


112 THE NAUTILUS. 


the fully matured shell, from the Tennessee river at Florence, Ala., 
collected by Mr. A. A. Hinkley, there seems to be no doubt but that 
the changes in growth of the two series have been identical. 

The minute young in the Florence series have the apical whorls 
carinate and the body-whorl bicarinate. I have no difficulty in 
identifying this form with Lea’s cincinnatiensis. The type had four 
whorls and measured 4 mm. in height by 3.5 in diameter. As a 
standard for comparison I have selected an individual of exactly 
these dimensions (Fig. 1); although most of the specimens of that 
diameter are more depressed, the altitude and width being substan- 
tially the same. 

This specimen agrees with the original diagnosis in every par- 
ticular with one exception. Lea states that the type had three 
bands and that the two carinze were colored. Whether the three 
bands included the two carinal bands, he does not say. All of my 
specimens, with one exception, exhibit four bands within the aper- 
ture. Two are carinal, one is between the upper carina and the 
suture, and the fourth between the lower carina and the umbilical 
depression, ‘These bands are continuous or broken into spots, and 
sometimes the upper and lower pairs are more or less confluent. 
The exception has only the upper pair of bands, the lower carina 
and basal area being uncolored. I do not regard the variation in 
banding of any material importance and, therefore, have no 
hesitation in proceeding on the assumption that these bicarinate 
individuals are the cincinnatiensis of Lea. As shown by Fig. 1, the 
typical form of A. cincinnatiensis has four whorls; the spire is 
acutely conical, its whorls flattened and bounded below by the pro- 
jecting carina, the suture of the succeeding whorls being on the 
under side of the carina and slightly within the outer edge; the 
body whorl is strongly bicarinate, flattened above the superior 
carina, concave between the carine and with the basal are area 
flattened and very oblique. The shell is rather translucent, light 
horn-color, more or less tinged with green; apex is red, lighter than 
the supracarinal band, and the bands dark reddish-brown; the 
superior band is broad and on the apical whorls fills nearly the en- 
tire space between the carina and the suture, so that the whorls 
appear wholly dark colored ; the basal band is broad, the color ex- 
tending to same degree over the entire umbilical area; the columella 
is more or less tinged with purple. The aperture is large ‘* rounded,” 


THE NAUTILUS. 118 


but slightly modified, however, by the carine. The nepionic whorl 
is smooth, or very slightly and irregularly roughened or pitted; this 
perhaps may be the result of incipient erosion. Below this, the 
lines of growth on the second and third whorls are strong, straight 
and quite regular, and intersecting these are numerous stronger, 
parallel, revolving strie, which give a reticulated appearance to the 
surface ; on the fourth whorl the revolving lines sensibly diminish 
in strength and towards the aperture become subobsolete. This 
sculpture is uniformly present and is apparently characteristic of the 
bicarinate form. The persistence of the revolving lines varies in 
different individuals. Usually they fade out as the shell assumes 
the globose form, but occasionally continue until the shell is nearly 
mature. 

There is considerable variation in the height of the apical whorls. 
Most of the specimens in the bicarinate stage are more depressed 
than the type and the carina is less prominent on the superior whorls. 
Fig. 2 is the most depressed individual seen, and the spire is wholly 
flattened with no projection of the carina above the body whorl. 
As the shell increases in size, the superior carina becomes less 
prominent, the lip of the lower whorl rises and gradually passes over 
its edge, and, thenceforth, the shallow suture characteristic of the 
mature shell is maintained. Erosion begins, the acute spire and, 
generally, all the sculptured whorls disappear, and the shell assumes 
the characteristic globular shape of maturity. 

During this stage, the carine progressively diminish in strength 
and become mere angles and finally disappear. The groove between 
them widens and becomes plane and persists in the half-grown and 
mature shells as the characteristic flattening of the body whorl. 
The superior carina is the less persistent and completely disappears 
in the regularly rounded curve of the upper part of the whorl. The 
lower carina and the resulting angle remain longer in evidence and 
cause in the mature shell the greater width of the lower part of the 
body whorl. The carine persist longer in the more conical speci- 
mens (Fig. 4) than in the depressed individuals (Fig. 3). For 
comparison with this stage in the Florence series, the smallest ex- 
ample seen from the Falls of Ohio is figured (Fig. 5). It measures 
§.5x5.5 mm. The apical whorls are somewhat eroded, but enough 
is left to show that they were carinate and had the characteristic 
sculpture ascribed to cincinnatiensis. They are more depressed 


114 THE NAUTILUS. 


than any of the Florence series, and the body whorl is much more 
gibbous. This feature is still more emphasized in a small series of 
prerosa from the Ohio at Golconda, Ills., also collected by Mr. 
Hinkley. In these (Fig. 6), as the shell advances beyond the 
bicarinate stage, the lip passes over the superior carina and overlaps 
the preceding whorl, forming a slight shoulder around it, so that 
upon the completion of an entire whorl, the spire appears, as it were, 
in a flattened depression with the short, apical elevation in the 
centre. Whether this is constant in the prerosa of the Ohio, the 
series under examination is too small to establish. But the simi- 
larity of the specimen from the Falls of the Ohio (the type locality) 
suggests that it may be. It is very desirable that a full series of all 
sizes from the Ohio should be examined, so that the manner of 
growth of the typical form may be definitely determined. 

By a careful selection of the less eroded specimens, the whole 
process of growth can be traced from the typical bicarinate form of 
the young to the smooth rotundity of the adult shell and there is 
apparently no question but that the cincinnatiensis of Lea is the 
young of the prerosa of Say. 


II. ANCULOSA SUBGLOBOSA Say. 


This species, in some localities at least, seems to be less subject to 
erosion than its associated species of the genus; and specimens nearly 
if not quite mature, with perfect apices, are not uncommon. The 
tracing of the growth of the shell from the early stages to maturity 
is, therefore, a matter of comparative ease. 

The series of young shells in the Lewis collection, of which the 
smallest (Fig. 9) measures alt. 3.25, diam. 3.55 mm., with one ex- 
ception, is very uniform, and there can be no doubt but that they are 
the young of the typical form as figured by Tryon (Mon. figs. 799 
and 800). They are gibbous, translucent, light horn-color, unicol- 
ored or banded, smooth and shining, apex acutely conical, the tip 
tinged with dark brown, whorls rounded, suture well impressed, with 
no trace of any carina whatever. The shell increases very rapidly 
in size, but retains its peculiar form until nearly mature. For com- 
parison with Figs. 3 and 8 a larger specimen (5x5 mm.) is also fig- 
ured (Fig. 10). 

The exception above noted (Fig. 11) is quite different in shape 
and would seem to be specifically distinct. It measures 5.5x5 mm., 


THE NAUTILUS. 115 


and is of a light greenish-yellow and much more globular than the 
others and barring the bands, which are three instead of two as 
called for by the original description, has great resemblance to A. 
globula of Lea. The aperture is almost exactly two-thirds of the 
length of the shell. Among a small set from the Holston at Knox- 
ville, Tennessee, collected by Mr. A. C. Billups, are larger  speci- 
mens (10x8.5 mm.) of the same form, but I have been unable to 
trace it with entire satisfaction to maturity. It is, however, appar- 
ently the immature form of the species that Dr. Lewis identified with 
the A. virgata of Lea. But whatever the relation of the form to 
subglobosa may be, it agrees with it in its smooth, shining, rounded 
whorls with no impressed spiral lines and no carine. 


III. A, TINTINNABULUM Lea. 


Dr. Lewis’ series of this species is very complete and as he states, 
there can be no question but that the bicarinate form that he identi- 
fied with Lea’s cincinnatiensis is the young of tintinnabulum. But 
they are quite different from the true eincinnatiensis if I am right in 
my identification of that form, and seem to be specifically distinct. 
Compared with cincinnatiensis of the same size, these shells (Figs. 7 
and 8) have a more elevated spire and are much thicker, being quite 
opaque and noticeably more heavily moulded; the surface of the 
whorls above the superior carina is decidedly convex above and 
excavated below as it approaches the carina, so that on the third and 
fourth whorls there is a well-developed groove immediately behind 
the carina; the carine are much stronger, the superior projects 
upwards rather than laterally, and is formed more by the excavation 
of the upper surface of the whorl behind the uplift of the intercari- 
nal area, than by the lateral projection of the carina, as in cincin- 
natiensis ; the lower carina is much stronger and projects laterally ; 
the intercarinal area is relatively wider and very flat, being scarcely 
at all concave; the basal area is much more excavated immediately 
below the inferior carina. While color is, perhaps, the least re- 
liable factor in specific distinction in Anculosa, in this series it is 
remarkably uniform and very striking. The shells are uniformly 
light greenish-yellow with two broad reddish-brown bands on the 
body whorl, one above the superior carina and the other on the basal 
area immediately below the inferior carina; the apical whorls are 
reddish-brown ; the intercarinal area has no band, the caring are 


116 THE NAUTILUS. 


noticeably lighter in color than the rest of the shell and stand out 
conspicuously against the dark bands above and below them. As 
the shell grows, the superior band widens and invades the region of 
the superior carina, sometimes before it has entirely disappeared, and 
occasionally divides into two narrow bands, the basal band persists 
and in the adult the space between tlem represents the intercarinal 
area of the young shell. 

' The spiral lines are uniformly present and rather stronger than in 
cincinnatiensis and apparently persist longer as the shell approaches 
maturity. 

As the shell increases in size, the superior carina diminishes and 
finally disappears entirely; the lower carina persists much longer, 
descends somewhat in position and becomes a characteristic feature 
of the half-grown shell and, in the adult, causes the bell-shaped form 
which gives to the species its specific name. 


LV. ConcuLusions. 


From the examination of the material as above detailed, the fol- 
lowing conclusions may be drawn. 

1. That in these species of Anculosa at least, the very young shells 
have characteristics which are constant and available for specific 
distinction. 

2. That the young shell of A. prerosa is bicarinate and spirally 
striate and was described by Lea as A. etncinnatiensis. 

3. That the young shell of A. subglobosa is ecarinate and without 
spiral, impressed lines. 

4. That the young shell of A. tintinnabulum is bicarinate and 
spirally striate, but specifically different from Lea’s eznetnnatiensis. 

5. That A. tintinnabulum Lea is specifically distinct from both A. 
prerosa and A. subglobosa, and is a valid species. 

6. That collectors and especially those in the field should give 
special attention to securing full sates of all the species of all ages, 
particularly the very young, so that the exact relations of all the 
described species may be definitely determined. 


EXPLANATION OF PLATE X. 
All the figures are on the same scale, X 48. 
Fig. 1-4. A. prerosa Say—Tennessee River, Florence, Ala. 
Fig. 5. A. prerosa—Falls of the Ohio. 


THE NAUTILUS. 117 


Fig. 6. A. prerosa—Ohio River, Golconda, Ills. 

Fig. 7-8. A. tintinnabulum Lea—Holston River, Tenn. 
Fig. 9-10. A. subglobosa Say—Holston River, Tenn. 
Fig. 11. A. globula Lea?—Holston River, Tenn. 


A NEW SPECIES OF PYRGULOPSIS. 


BY A. A. HINKLEY. 


The finding of a new species of Pyrgulopsis is a surprise, coming 
as it does from such a well-known stream as the Wabash, a river 
which has furnished many forms of shells found nowhere else north 
of the Ohio river, though common in southern streams. There was 
found associated with the new species Somatogyrus strengi Pilsbry 
and Walker, a recently described southern species, which adds 
another to that list of, shall we call it freak geographical distribution? 
or is there some known cause for the occurence of southern forms in 
the Wabash? It seems a little strange that no species of shells bears 
the name of the Wabash river. The writer thinks now a good time 
to use the name. 


PYRGULOPSIS WABASHENSIS, ND. sp. 


The shell is imperforate, pupiform, smooth, horn-colored ; growth 
lines faint; composed of five convex whorls separated by an im- 
pressed suture. The periphery is rounded or slightly angular. The 
aperture oblique, ovate, angular above, rounded below. The colu- 
mella a little reflected. Columellar callus thickened; on the 
parietal wall the outside edge straight and raised. 

Length .12, diam. .06 of an inch. 

Found in shallow water of the Wabash river, at the Chains in 
Posey county, Indiana, by the writer’s son, George Hinkley. Com- 
pared with P. mississ/ppiensis this species is smaller, bas not the 
angular or carinate body whorl, the spire is not so acutely conical, 
and the aperture is not as wide. The miss/sszpiensis is conical with 
flat whorls; this species is pupiform with rounded whorls. Some 
examples of wabashensis have a slight shoulder on the penultimate 
whorl just above the suture, others have an impressed line on the 
body whorl a little distance below the suture, 


118 THE NAUTILUS. 


Examples are in the collections of the Academy of Natural 
Science, Philadelphia; The National Museum; The Chicago 
Academy of Science, Mr. Bryant Walker, and the writer. 


NOTES ON SOME AUSTRALIAN UNIONIDE. 


BY L. S. FRIERSON. 


A series of shells covering nearly the whole range of species 
credited to Australia having been received from the well-known 
conchologist, Mr. Wm. T. Bednall of Adelaide, reveals several inter- 
esting points, which may constitute as many ‘‘ addenda and corri- 
genda”’ to Mr. C. T. Simpson’s ‘“‘ Synopsis of the Naiades.” 

Page 891. Unio bednalli Tate was described in 1882, Proceed- 
ings Royal Society of South Australia, page 56. The shell, as 
evidenced by notes, and a fine series of specimens from Mr. Bednall, 
is not a form of Dzplodon australis (Lam.) Hanley, but is much 
nearer to D. wilsonti Lea (= stuarti Adams and Angas). A speci- 
men of bednalli is over 34 inches long by 1? high, whereas a speci- 
men of D. australis var. legrandi (an elongated variety) is 3 inches 
long and 2 inches high). WD. bednalli Tate therefore should be 
removed as a synonym of australis, and restored to specific rank, 
from whence, should it ever be degraded, it must fall under D. wil- 
sonit Lea, as a variety. 

A series of shells labeled U. angasii Lea revealed the follow- 
ing facts: U. angasii, credited to MSS. of Lea, was described by 
Sowerby in Conchologia Iconica, and placed by Mr. Simpson as a 
synonym of D. shuttleworthti Lea. A casual observation of the lot 
seemed to indicate two species. A critical study of both the actual 
specimens with the original descriptions of both species confirmed 
this impression. Diplodon shuttleworthii Lea (besides being appar- 
ently larger) has a deeply and coarsely sulcated disc, and is covered 
with a heavy, thick, scaly epidermis resembling that of D. eucumoides. 

On the other hand the D. angasii Sowerby is apparently a smaller 
species, is much thinner, with a smooth surface and covered with a 
thin epidermis, with nothing more than fine sulcations, scarcely 
noticeable. But as a final clincher, a young specimen of D. angasti 
(having beaks so perfect as to show the glochidial shell) shows a 


THE NAUTILUS. 119 


beak having not a trace of radial sculpture, but only a fine, concen- 
tric sulcation. Hence the shell not only is not D. shuttleworthit, but 
strictly speaking is not even a Diplodon. The beaks of D. shuttle- 
worthit have ‘‘ strongly, irregularly radiate, curved bars.” 

Mr. Bednall was unable to procure for me a single example of D. 
vittatus Lea, or D. evansii A. & A., or of D. wilsonit, having un- 
eroded beaks. But from the general similarity of the shells, it is, I 
believe, more than probable that a subgenus composed of these and 
possibly other Australian shells, having concentric beak sculpture or 
none, should be made and the definition of Diplodon be correspond- 
ingly broadened. 


NOTES. 


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Be 6. Po 0. Wy di 


PUBLICATIONS RECEIVED. 


A New Prerorop rrom New Eneianp.—By C. H. Danforth, 
(Proc. Boston Soc. Nat. Hist., vol. xxxiv, pp. 1-19, pl. 1-4). 

This new pteropod, Pzdoclione doliiformis, which also proves to 
be a new genus, was taken in the plankton of Casco Bay, Me., on the 
nights of Aug. 28 and Sept. 5, 6,7 and 8, 1902. On a hasty ex- 
amination it was referred to a larva of some gymnosomatous 
pteropod. Later, in making some sections, they were found to be 
sexually matured adults. ‘ This genus does not properly fall under 
any established family although perhaps it approaches most nearly 
the Clionidxz, from which it differs in having an odd number of 
cephalocones and in having the entire posterior part of the body 
filled by the viscera.” The species is described as: “ Transparent ; 


120 THE NAUTILUS. 


barrel-shaped ; small, about 1.5 mm. in length ; head when expanded 
elliptical in outline ; anterior ciliated band broken up into segments ; 
expanded parapodia (wings) flat, long-ovate; middle lobe of foot 
rather large.” The author gives a very exhaustive account of its 
general features, musculature, digestive and nervous systems, heart 
and nephridium, and the reproductive system. The paper is illus- 
trated by four plates and two figures in the text.—C. W. J. 


Tue HALioTis oR ABALONE INDUSTRY OF THE CALIFORNIAN 
Coast.—By Mrs. M. Burton Williamson (Am, Hist. Soc. S. Cal., 
vol. vii, pp. 22-30, 1907). An exceedingly interesting account of 
this important industry. The law protecting these shells is like the 
law protecting the lobster on the Atlantic. The young are pro- 
tected but those which produce young are not. The author asks the 
pertinent question—‘ If these mollusks are destroyed as soon as old 
enough to propagate, of what use to the State is the preservation of 
the young?” The present method in time can only lead to their 
extermination. The shells should be protected at least during their 
breeding period.—C. W. J. 


Tue Moriusca oF Mast Heap Reer, Capricorn Group, 
QUEENSLAND, Pt. II.—By C. Hedley (Proc. Linn. Soc. N. S. 
Wales, vol. 32, pp. 476-513, pls. 16-21, 1907). In this paper 37 
new species are described and beautifully figured. A list containing 
some 447 species from this reef, procured within a week, in a six- 
mile radius from one spot, shows the richness of the fauna. 


THe PYRAMIDELLID MOLLUSKS OF THE OREGONIAN FAUNAL 
Area—By Wiritam H. Dar and Paur Bartscu (Proce. U.S. 
Nat. Mus., XX XIII, pp. 491-534, pls. 44-48, 1907). The species 
described in this paper have been selected from a monograph of West 
American Pyramidellide upon which the authors have been at work 
for some time, but which has been unavoidably delayed. The 
Oregonian Faunal Area includes the region extending from the 
northern limit of the Alexander Archipelago southward along the 
coast to Pt. Conception, Cal. Thirty-eight new forms are described 
and beautifully figured together with many others already known 
imperfectly from this region.—C. W. J. 


ae ae ae 
ee f 


PIA E ex 


THE NAUTILUS, XXI 


WALKER: NEW SPECIES OF ANCYLID® 


ae NAUTILUS. 


VoL. XXI. MARCH, 1908. No. iF; 


MOLLUSCAN FAUNA OF THE SAN BERNARDINO MOUNTAINS, 
CALIFORNIA. 


BY S. S. BERRY. 


In view of the extraordinary researches carried on in the neigh- 
boring regions of Arizona and New Mexico by Messrs. Ashmun, 
Ferriss, Pilsbry, and other recent collectors, the writer has often 
wondered what might be the result of an equally diligent effort in 
the mountain ranges of Southern California. But little work seems 
to have been done in the region, and reports on that little are scat- 
tered and fragmentary. 

During the month of August, 1907, the writer spent two weeks 
camping in the San Bernardino Mountains, California, and although 
he had other business on hand than the advancement of a hobby, he 
kept his eyes open for mollusks, and is thus enabled to add another 
fragment to the records. 

The San Bernardino Mountains range in height from about five 
thousand to nearly twelve thousand feet above sea-level, and abound 
in grand and beautiful scenery. Extending, as they do in an 
easterly-westerly direction, the northern slope of the mountains 
drains into the Mojave Desert, the southern into the Pacific. No 
mollusks whatever were found in the desert drainage, but the writer 
was able to give only a superficial examination to all but one or two 
spots, and has no doubt but that his collections represent a far from 
complete index to the life of the region. 

The canons and higher regions are well wooded, but the soil is 


122 THE NAUTILUS. 


generally dry at this time of the year, although there are numerous 
brooks and rills, with here and there an open swampy meadow or 
cienaga. 

Bear Lake is a partly natural, partly artificial reservoir, some five 
or six miles long by perhaps a half a mile wide, and about sixty-five 
hundred feet above sea-level. It is the home of multitudes of small 
forms, most of them being species of wide distribution. High up on 
the mountain to the south of the lake is Bluff Lake, a small summer 
resort, at an altitude of 7,550 feet. In this case the ‘‘ Lake ”’ is only 
a large cienaga with a swamp at its lower end. This swamp, with 
the creek which flows from it, proved a very interesting locality, 
while all the land mollusks seen on the trip were found either under 
sticks and logs at the edge of the meadow or nearby in the woods. 

It is notable that none of the larger Helices were found, although 
Glyptostoma newberryanum should occur here just as it does in the 
neighboring San Gabriel Range, and I have seen living specimens 
of Epiphragmophora tudiculata W. G. B. from the base of these 
mountains. 

A list of the species obtained is herewith appended : 

Pisidium californicum Newcomb (?). Two “somewhat different 
forms’’ were thus determined by Dr. Sterki, who says that P. cali- 
fornicum itself is somewhat in doubt. They occur together, and are 
rather common in the quieter pools of Bluff Lake Creek, in ditches 
in the meadow, and in the swamp. 

A number of minute Pisidia found in a spring on a nearby hill- 
side are probably young of the same. 

Pisidium (sp. ?). Two specimens from the swamp are of “ differ- 
ent shape from the remainder,” according to Dr. Sterki, but whether 
or not distinct he was unable to say. 

Musculium raymondi J. G. Cooper. Found commonly in the 
swamp, and rather rarely in the creek at Bluff Lake. 

Valvata (sincera, Say?) var. Bluff Lake Swamp (two speci- 
mens) and in Bear Lake, where it seems fairly common on and 
under stones. 

Lymnea palustris Mill. A small variety of this species occurs 
commonly in Bear Lake. It is extremely variable, generally tend- 
ing toward the form called nuttalliana by Lea. The maximum 
longitude of the numerous specimens collected in Bear Lake is but 
about ten millimeters, 


THE NAUTILUS. 123 


Lymnea palustris nuttalliana Lea. Occurring with the preceding 
in Bear Lake and intergrading with it, this form is also abundant in 
Bluff Lake Creek and the swamp at its head. The specimens from 
these localities are very distinct and uniform, and several hundred 
examples showed no tendency to grade into typical palustris. All 
the specimens found here are very much larger and less fragile than 
those from Bear Lake. 

Physa coopert Tryon. Common in Bear Lake, and a smaller 
form was found in myriads in a watering trough on the City Creek 
Cafion Road. (Alt. about 2006 ft.) 

Physa sp. May be a variety of the preceding with which it 
occurs in Bear Lake, but it has a much more ventricose body-whorl. 

Physa politissima Tryon. Bear Lake—common. A fine, large 
species. 

Planorbis trivolvis Say. Bear Lake; Bluff Lake Creek; swamp 
at Bluff Lake. Very common, but specimens generally much eroded. 

Planorbis parvus Say. Swamp at Bluff Lake. Specimens identi- 
fied by Dr. Pilsbry. 

Planorbis vermicularis Gould. Not uncommon in Bear Lake. 
Specimens identified by Dr. Dall. It seems to me that this species 
is hardly more than a mere form of the preceding, although the 
specimens from Bear Lake have a more rounded and less flattened 
body-whorl, and are quite readily separated from those found in the 
swamp. 

Vitrina alaskana Dall. Two specimens under sticks in the 
meadow at Bluff Lake. 

Zonitoides arborea Say. About a dozen specimens found about 
an old stump in the border of the woods at Bluff Lake. 

Euconulus fulvus Draparnaud. Bluff Lake; two specimens under 
logs at the edge of the meadow. ‘This species has already been re- 
ported from ‘“‘ San Bernardino County ” by Binney. 

Vertigo occidentalis Sterki. One specimen (the type, No. 1860 
of my collection) was found near a spring in the cafion side below 
Bluff Lake Swamp. Diligent search on two occasions produced not 
another specimen, but this was enough for Dr. Sterki to pronounce 
as ** evidently of an unknown species.” It is described in NauTILus 
XXI, p. 90, q. v. 

Epiphragmophora tudiculata W. G. Binney. At the base of the 
mountains near Highland (1904); near Mentone (1906); also re- 
ported from above San Bernardino, 


124 THE NAUTILUS. 


SUBDIVISIONS OF THE TEREBRIDE. 


BY WILLIAM H. DALL. 


Having recently had occasion to review the genera of Terebride, 
it seemed that the synoptical table might have some interest for 
students. 

Genus TEREBRA Bruguiére, 1789. 
A. Presutural sulcus present. 

Sculpture uniform at all ages, persistent, suture appressed. Sub- 
genus STRIOTEREBRUM. 

Shell short, small. 

1. Sculpture reticulate. Section Strioterebrum s, 8. 

2. Axial sculpture emphatic, spiral obsolete. Fusoterebra. 

3. Axial sculpture obsolete, spiral emphatic. Pertrhoé. 
Shell elongate, whorls mesially constricted. 

4. Whorls nodulous at both margins. Zriplostephanus. 


B. Sculpture in youth and age discrepant. Subgenus TEREBRA, 
5. Young nodulous, sulcus persistent. Section Myurella. 
6. Young nodulous, sulcus present in youth. TZerebras. s. 
Young axially ribbed, sulcus persistent. 
7. Adult slender, smooth. Subula. 
8. Adult small, obsoletely ribbed. <Abretia. 
Sulcus obsolete in the adult. 
9. Whorls rapidly enlarging. Oxymeris. 
C. Sulcus wholly absent. Subgenus AcuMINIA. 
10. Adult slender, smooth. Section Acwminta. 


Genus HASTULA Adams, 1853. 
Presutural sulcus absent, suture appressed. 


A. Sculpture uniform, persistent. 

a. Shells small, slender. Hastula s. s. 
B. Sculpture discrepant. 

b. Whorls rapidly enlarging. Impages. 


Genus DUPLICARIA Dall, 1908. 
A. Sculpture persistent, suture channeled. 


a. Shell axially ribbed, suleate. Duplicaria. 


THE NAUTILUS. 125 


Genus SPINEOTEREBRA Sacco, 1891. 


A. Sulcus absent, suture appressed. 

a. Columellar border callous, axis impervious. Spineoterebra. 

b. Columellar border bare, axis pervious.’ Mazatlania. 

This table is not intended to exhibit all, or even the more import- 
ant characters upon which the main subdivisions (which will be 
treated elsewhere) are based, but is rather a key by which the shells 
may be conveniently assorted. The sections are typified as follows: 

Strioterebrum Sacco, 1891. 7. basteroti Nyst. 

A recent example is J. dislocata Say. 

Fusoterebra Sacco, 1891. Fusus terebrina Bonelli. 

A recent example is JT. benthalis Dall. 

Perirhoé Dall, 1908 (nov.). 7. ctreumcincta Deshayes. 

An American example is Acus rushii Dall. 

Triplostephanus Dall, 1908 (nov.). Terebra triseriata Gray. 

This is Myurella Hinds, in part. 

Terebra s.s. Lamarck, 1799. 7. subulata (Linné). 

Myurella Hinds, s. 8. 1844. Terebra myuros Lam. 

Subula a. s. (Schumacher, 1817) Gray, 1847. 7. dimtdtata 
(Linné). 

Abretia H. and A. Adams, 1853. 7. cerithina Lam. 

Oxymeris Dall, 1900. Terebra maculata Lam. 

This is Acus Gray, 1847, not Edwards, 1771. 

Acuminia Dall, 1908 (nov.). TT. lanceata (Linné). 

Hastula H. and A. Adams, 1853. T. strigillata Lam. 

Impages E. A. Smith, 1873. 7. caerulescens Lam. 

Duplicaria Dall, 1908 (nov). T. duplicata Lam. 

This is Myurella Troschel, not of Hinds. 

Mazatlania Dall, 1903. T. aciculata Lam. 

Spineoterebra Sacco, 1891. 7. spinulosa Doderlein. Miocene. 

Mazatlania is Euryta Adams, 18538, not of Gistel, 1848. 


1T use the term “ pervious” technically, to denote an axis gyrate about an 
empty space which penetrates the center of the shell internally, in contradis- 
tinction to ‘‘ umbilicate ” or “ perforate,” which would imply a space external 
to the inner wall of the whorls and circumscribed by them. 


126 THE NAUTILUS. 


NEW SPECIES OF ANCYLIDZ. 


BY BRYANT WALKER. 


NEOPLANORBIS SMITHII n. sp. Pl. IX, figs. 1 and 2. 


Shell minute, planorboid, perforate, slightly convex above and 
below ; periphery obtusely angulate ; thin, translucent, whitish, shin- 
ing with a silky luster from the fine, closely set, regular lines of 
growth. No trace of spiral sculpture. Whorls 2, rapidly enlarging ; 
apex sunken ; the last half of the first whorl elevated above the out- 
line of the body whorl; apical whorl convex, the convexity rapidly 
diminishing towards the aperture; suture well impressed, rising 
somewhat at the aperture; aperture large, oblique, slightly ex- 
panded, equally curved above and below; columellar margin dilated, 
straight and vertical, callously thickened below, smooth; umbilicus 
a mere perforation. 

Alt. 1, diam. 2 mm. 

Types (No. 27149, Coll. Walker) from the Coosa river at Hig- 
gin’s Ferry, Chilton Co., Ala. Co-types in the collection of T. H. 
Aldrich, Geo. H. Clapp, John B. Henderson, Jr., and the Phila- 
delphia Academy. 

This little species differs from tantillus and all the other known 
forms of the genus by the entire absence of spiral sculpture and the 
elevation of the spire above the level of the body whorl. The animal 
is black and the shell consequently appears of that color until cleaned. 


NEOPLANORBIS UMBILICATUS n. sp. PI. IX, figs. 3 and 4. 


Shell minute, planorboid, umbilicate, convex above and below, 
but flattened above as it approaches the aperture and obliquely flat- 
tened below the periphery ; periphery obtusely carinate ; brownish 
horn-color; lines of growth fine and regular; surface sculptured by 
raised spiral lines, which are heavier below than above the periphery. 
Whorls 2, rapidly enlarging, apex sunken ; apical whorl very con- 
vex ; body whorl nearly flat in the sutural region, but curving down 
rapidly toward the peripheral carination ; suture well impressed and 
depressed below the periphery at the aperture; aperture large, 
wider than high, flattened above and below, the upper and lower 
margins being nearly parallel, obliquely flattened below the per- 
iphery; columellar margin broadly dilated, curved and partially 


THE NAUTILUS. 127 


covering the umbilicus; columella curved, with a heavy callus and 
obtuse tubercle in the center; umbilicus round and deep. The 
animal is yellowish. 

Alt. 1, diam. 2 mm. 

Types (No. 27150 Coll. Walker) from the Coosa River at ‘The 
Bar” 24 miles above Yellowleaf Creek, Chilton Co., Ala. Cotypes 
in the collection of T. H. Aldrich, Geo. H. Clapp, John B. Hender- 
‘son, Jr., and the Philadelphia Academy. 

This species resembles tantillus in being spirally striate but differs 
in being umbilicate and in having a tooth on the columella, as well 
as in the general shape. It does not resemble smithiz in any of its 
special features, and differs from carinatus in being more obtusely 
carinate and in the wider umbilicus and stronger spiral striation, 


NEOPLANORBIS CARINATUS n. sp. PI, IX, figs. 17 and 18. 


Shell minute, planorboid, narrowly umbilicate, nearly flat above, 
convex below, but obliquely flattened below the peripheral carina, 
which is strong, but rather blunt ; pale horn-color ; lines of growth 
fine, closely set and regular, sculptured above by a few fine sub- 
obsolete spiral lines, stronger towards the periphery ; under surface 
with numerous fine spiral lines heavier than on the upper. Whorls 
2, rapidly enlarging ; apex sunken ; apical whorl somewhat flattened 
above, convexly rounded at the periphery which, at about the be- 
ginning of the body whorl, becomes angulate and then carinate; the 
body whorl above is slightly convex in the center, but flattened 
toward the suture, and ‘‘ pinched out”’ at the periphery to form the 
carina; suture well impressed, descending toward the aperture below 
the periphery ; aperture large, much wider than high and auricu- 
lated at the periphery by the carina; upper and lower margins flat- 
tened and nearly parallel; columellar margin dilated, free, slightly 
curved back over the small, round umbilicus, and obtusely angled 
where it joins the basal margin; columella somewhat thickened, 
with a small obtuse tubercle at about the center. 

Alt. 1, diam. 2 mm. 

Types (No. 27151, Coll. Walker) from the Coosa river at Dun- 
can’s Riffle, Coosa Co., Ala. Cotypes in the collections of T. H. 
Aldrich, Geo. H. Clapp, John B. Henderson, Jr., and the Phila- 
delphia Academy. 

In form the species reminds one of a minute Planorbis oper- 


128 THE NAUTILUS. 


cularis Gld., its most prominent characteristic being the nearly 
plane upper surface with a strong peripheral carina. It resembles 
umbilicatus in being spirally striate and having a columellar tooth, 
but differs in the greater development of the carina, narrower umbili- 
cus and in having the spiral lines much weaker. It differs from 
tantillus in the greater development of the carina, in the small but 
round umbilicus, dentate columella and weaker spiral striation. The 
animal is black. 


All these species of Neoplanorbis were discovered by Mr. Herbert 
H. Smith in the fall of 1907. They live on the under sides of stones 
in the more or less rapid current and in suitable localities are very 
abundant. Mr. Smith took 50 from one small stone. Neoplanorbis 
seems very local in its distribution. It may be abundant on one 
shoal and not found at all on another. And on the same shoal, it is 
frequently restricted to one side of the river or the other. 

In his progress down the river in 1907, Mr. Smith did not find 
Neoplanorbis at all, until he reached Cedar Island, Chilton Co., 
three miles above the mouth of the Yellowleaf Creek, where a single 
specimen of wmbilicatus was found. 

At “ The Bar” two miles further down umbilicatus was found in 
some abundance on stones in a strong current, while at the same 
place carinatus was found in a moderate current. There was no 
intermingling of the species in these two situations. Umbtlicatus 
was not met with below this point. 

At Butting Ram Shoals, five miles below, in a moderate current, 
the catch was almost entirely carinatus, the exception being three 
specimens of smithit. 

At Higgins’ Ferry, seven miles further down stream, in a moderate 
current, with the exception of a single example of carinatus, the 
several hundred specimens were all smithit. 

While at Duncan’s Riffle seven miles below, the catch contained 
two specimens of smithit, the balance being carinatus. 

Duncan’s Rifle is twenty-four miles by river above Wetumpka, so 
that, in view of these facts, it is not surprising that JV. tantillus was 
not met with at all. 

The following key may be of assistance in differentiating the four 
species of Neoplanorbis now known : 

1. Umbilicate, columella dentate .........3. 
2. Perforate, columella smooth. ......+.s.s.& 


THE NAUTILUS. 129 


Periphery carinate, umbilicus narrow. . . . . . carinatus. 

* (Periphery obtusely angled, umbilicus wider. . . . umbilicatus. 
Spirally striate, periphery carinate . . . . . . . tantillus. 

* (No spiral strie, periphery rounded ,...... smithit. 


VITREA LEWISIANA N. SP. 


BY GEO. H. CLAPP. 


Shell small, depressed widely, perspectively umbilicate, all whorls 
showing to the apex, umbilicus contained about five times in the 
diameter of the shell; yellowish-white, translucent, the inner whorls 


Qe) = 


Upper figures, Vitrea lewisiana Clapp. Type, x8. 
Lower figures, ‘ dalliana ‘Simpson’ Pils. x8. Miami, Fla. 


showing through the body of the shell, highly polished; the delicate 
growth lines are very regularly spaced and close together, smooth 
below. Spire much flattened; sutures well impressed, margined ; 
whorls 34, slightly convex, the last wide. Aperture oblong-lunate, 
depressed above, lower margin parallel with the base, lip simple. 

Gr. diam. 34, lesser 2.8, alt. 14 mm. 

Type from Monte Sano, near Huntsville, Ala., also found at 
Wetumpka and Gurley, Ala., so probably extends over the whole 
eastern part of the state. Rare. Collected by Herbert H. Smith. 


130 THE NAUTILUS. 


I name this species in honor of the late Dr. Jas. Lewis, whose 
work on the southern mollusca is well known. 

The color, and particularly the very regular, close lines of growth 
at once distinguish this shell from all other species. It is perhaps 
nearest to V. dalliana, but differs in color, shape and sculpture. In 
dalliana there is a very minute spiral sculpture, not mentioned in 
the original description, and only visible under a magnification of 
about 60 diameters. 


NOTES. 


Norte on HELIX HORTENSIS.—In my article on the distribution 
of Helix hortensis (THE Navutitus, XX, p. 73, 1906). I over- 
looked a very interesting article by Robert Bell, Jr., “‘On the 
Natural History of the Gulf of St. Lawrence, and the distribution of 
the mollusca of Eastern Canada.”’ (The Canadian Naturalist and 
Geologist, IV p. 215, 1859). As the note on H. hortensis has an 
important bearing on its distribution and is probably inaccessible to 
many, I quote it in full: “It seems scarcely credible that this 
species has been imported from Europe, considering how widely 
diffused and vastly numerous it has become along the Lower St. 
Lawrence. On the mainland it was first observed on Mount Com- 
mis, about nine miles south of St. Luce and on the coast at Metir, 
where it was abundant and below which it seems to occupy the place 
of H. albolabris, but is generally much more numerous. In 1857, I 
found vast numbers of them on the Brandy Pots and Hare Island in 
the middle of the St. Lawrence opposite Riviére du Loup. The 
climate of Gaspé seems to be very favorable to their propagation, as 
they appear to have spread over the country for a considerable dis- 
tance in land, ‘The yellow and banded varieties seem to be about 
equally numerous. Where land has been recently cleared and burnt 
over, their withered shells may be seen strewed in thousands over the 
surface of the soil. In the valley of the Marcouin they were 
observed to extend 12 miles inland, which was farther than at any 
other place. The height at which the last specimen was found was 
about 1500 feet above the sea, as indicated by the barometer which 
we had with us. The young from the size of a grain of duck shot 
to half that of the adult shell were met with in our journey up this 
valley in the end of July.”” With this record as a basis it would be 


THE NAUTILUS. 131 


interesting to know to what extent the species has spread during the 
past fifty years, or whether with advancing civilization and the 
clearing and burning of the woods it has diminished. We have no 
recent records outside of the Gaspé region.—C. W. JOHNSON. 


WE regret to announce the death of Charles Abbott Davis, 
Curator of the Roger Williams Park Museum, Providence, R. I. 
He died January 29, at the age of thirty-nine years, 


Note ON TURBONILLA CASTANEA AND ODOSTOMIA MONTEREY- 
ENSIS.—In the hurry of departure for the Philippine Islands, Dr. 
Bartsch applied to two new Pyramidellids in our recent paper (No. 
1574) in the U. S. Nat. Museum Proceedings, the names Turbonilla 
( Pyrgiscus) castanea (p. 509) and Odostomia (Amaura) montereyensis 
D. and B., (p. 531). These names being preoccupied, I propose to 
substitute J. (P.) castanella and O. (A.) canfieldi.—W™m. H. Datu. 


MILAX GAGATES AND VITREA CELLARIA IN COLORADO.—Four 
of my students, Messrs. Walter Groom, Floyd House, Merrit Hunt 
and William Winner, recently examined the greenhouses of Boulder 
for Mollusca, to be used for class purposes. Quite to my surprise, 
they obtained five species, two of which had not previously been 
found in Colorado. YV. alliaria was first found in Colorado last 
year, also in a Boulder greenhouse. The species obtained were: 

(1) Milax gagates (Drap.). Many, of various ages, all of the 
variety plumbea, and with the keel rather inconspicuous in life. 
They probably came from the Pacific coast, and represent the hewstont 
form, which I have never been able to separate from gagates. 

(2) Agriolimax agrestis (L.). Several, from light reddish to 
almost wholly black. 

(3) Agriolimax campestris (Binney). One. 

(4) Vitrea cellaria (Miller). Many specimens, some of good size. 

(5) Vitrea alliaria (Miller). Several, with the garlic odor very 
strong. 

P. S., Feb. 6.—The examination of the Boulder greenhouses has 
been continued, and to-day Mr. Ivan Beck brought in a number of 
Vitrea lucida (Drap.), also new to Colorado. One specimen has a 
diameter of almost 15 mm. There was also secured an example of 
Vitrea cellaria, var. margaritacea Schmidt, the white variation. As 
the introduced species of Vitrea are not very generally known, a 
brief table may,be of service. 


132 THE NAUTILUS. 


Shell small, about 6 mm. diameter; shell and animal both quite 
dark ; in life nearly always with a strong garlic odor. 
V. alliaria (Miller). 
Shell much larger when mature, and not smelling of garlic. 

Shell about 10 mm. diameter, compact, nearly circular in out- 
line, pale brownish or (var. margaritacea) white; animal 
pale, darker dorsally. V. cellaria (Muller). 

Shell larger when mature, broader, with the last whorl broader 
and flatter, dark-colored ; animal very dark bluish or bluish 
slate, the basis of the upper tentacles swollen. 

V. lucida (Draparnaud). 


T. D. A. CockKERELL. 


PUBLICATIONS RECEIVED. 


BERMUDA IN PERIODICAL LITERATURE, with occasional refer- 
ences to other works: A Bibliography, by George Watson Cole 
1907. Pp. xii+275. ‘ By far the greater part of what has been 
written concerning Bermuda has appeared in various periodicals and 
the publications of learned societies. These writings may roughly 
be divided into historical and descriptive, and those relating to natural 
history. Of history, properly speaking, little has appeared; but 
many descriptive articles have been written by tourists and others 
who have visited those beautiful islands. Their geographical situa- 
tion and subtropical fauna and flora early attracted the attention of 
those interested in scientific phenomena. Soon after beginning this 
work it became apparent to the compiler that the Bermudas have for 
the past half-century been a favorite field of the zodlogist, botanist 
and geologist. Bearing this in mind, a special effort has been made 
to render the record of their labors as complete as possible. In 
order to do this, references are made to some works which are 
not periodicals, mostly, however, by authors who have also made 
contributions to periodical literature concerning the flora and fauna 
of those islands.” 

The scope of this work is sufficiently indicated in the above quota- 
tion from the author’s preface. Mr. Cole has made the bibliography 
of Bermuda a labor of love for many years, and the number of titles 
brought together here will surprise even those who have been inter- 
ested in things Bermudian. The notes given under all important 
titles amount to a digest of the papers. Thus in dealing with biolo- 
gical articles, all species described from Bermuda are cited, and ex- 
tracts are given to show what of interest any paper contains. To the 
naturalist interested in Bermuda the work will take its place as an 
indispensable reference book ; but Mr. Cole’s delightful notes give 


the opus a merit all its own; it is really a readable bibliography. 
H. A. P. 


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THE NAUTILUS, XXI. PLATE XI 


NEW AMERICAN MOLLUSKS. 


/~ 


Wee INAUTILUS: 


Vou. XXI. APRIL, 1908. No. 12. 


NOTES ON PLATE XI. 


Several references to the figures grouped on this plate were pub- 
lished before the plate was made up, and require correction in the 
text. 

Figs. 1, 2, 3, Polygyra martensiina Pils., ‘Tampico, Mexico. 
Described in the July number, p, 26. The dimensions are wrongly 
given in the text. The type measures, alt. 5.5, diam. 11 mm., 
another specimen, alt. 4.8, diam. 8.8 mm. 

Fig. 4, Fluminicola m/niutissima Pils. Idaho. Description in 
November number, p. 76, Alt. 1.5 mm. 

Fig. 5, Vertigo occidentalis Sterki. Bluff Lake, San Bernardino 
Co., California. Described on p. 90. In our opinion this form 
should be ranked as a subspecies under V. modesta nearest to V. 
modesta castanea St., from which it differs in the shorter, wider, less 
cylindric shape, and the slightly larger teeth. If this view is correct 
it will stand, as V. modesta occidentalis, among several other slightly 
differentiated races of modesta, all variable, and especially developed 
in the Canadian zone of the Rocky Mountains.’ V. m. occidentalis is 
illustrated from the unique type, by courtesy of Mr. S. S. Berry. 
It is No. 1860 of his collection. See also p. 123. 

Figs. 6-10, Micrarionta desertorum Pils. & Ferr. Described on p. 
134. H. A. P. 


'See in this connection the figures in Pilsbry and Vanatta, Partial Revision 
of the American Pupa, 1900, p, 600, pl. 23. 


184 THE NAUTILUS. 


A NEW MICRARIONTA FROM ARIZONA. 


BY H. A. PILSBRY AND J. H. FERRISS. 


When at the Grand Canyon of the Colorado in the autumn of 
1906 the writers met Mr. W. J. Gilchrist, who at that time was about 
to leave the Canyon for the mining region of the lower Colorado. Be- 
sides various friendly and helpful services in connection with our 
work at the Canyon, Mr. Gilchrist volunteered to look out for snails 
in the region he was about to visit. It was with a great deal of 
pleasure that one of us received a letter and package of snails, making 
good his offer of assistance. 

In that desert country snails are not common, and for a long 
time none were found. Finally, Mr. Gilchrist writes, “ I was build- 
ing a stone monument on a mining claim just after a beavy rain and 
found three live snails on a rock. These and four dead ones were 
all I have been able to find. They came from a small range of 
mountains 12 miles south from Parker, Yuma Co., Arizona.” 

The snails prove to be of a new species, which may be described 
as follows. 


MiIcCRARIONTA DESERTORUM 0. sp. Plate xi, figs. 6-10. 


The shell is small, depressed, openly umbilicate, the width of 
umbilicus contained nearly 5 times in that of the shell, glossy, opaque, 
pinkish-white with some oblique streaks of flesh-color, and sometimes 
a few corneous dots; the inner 24 whorls fleshy-corneous. The 
spire is convex but very low, whorls about 44, the inner ones rather 
slowly increasing, the last much wider, about double the width of the 
preceding. The embryonic shell consists of 14 whorls, the first 
fourth of a whorl smooth, the rest with close, even sculpture of min- 
ute papille, which are lengthened in a direction parallel to the 
sutures, and form a regular pattern of oblique, forwardly descending 
and ascending rows. ‘The post-embryonic whorls have fine, irregu- 
lar, somewhat wavy striz in the direction of growth-lines, and papillz 
like those of the embryonic whorls but much more sparsely placed, 
and disappearing near the end of the penultimate whorl. The last 
whorl has weak growth-lines only. It is rounded periferally and 
descends slowly to the aperture. The suture is deeply impressed, 
especially at the last whorl. The aperture is oblique, rounded-oval. 


THE NAUTILUS. 135 


Peristome slightly expanded, with a narrow, rusty edge ; upper and 
outer margins very slightly expanded ; basal margin more expanded ; 
columellar margin rather broadly dilated. ‘The ends converge and 
are joined by a short glossy callus. 

Alt 7.5, diam, 12.9, aperture alt. 5.8, width 6.7 mm. 

Alt. 6.8, diam. 11.6 mm. 

Alt. 6.7, diam. 11.1 mm. 

The whole upper surface, head and tentacles, are blackish-slate 
color, finely irregularly granulose. There are no distinct dorsal or 
genital furrows. The sole is tripartite, the areas separated by indis- 
tinct longitudinal impressed lines, in drowned alcoholic examples. 
The middle area is twice as wide as the others, slaty-white; side 
areas darker slate color. The mantle is whitish, the venation of the 
lung outlined delicately with gray. 

The genital system (pl. XI, fig. 9) resembles that of M. hutsont. 
The penis (p.) is swollen near the base, and has a slender retractor 
muscle (p. r.), and a moderately long flagellum. The vagina is 
very short, the spermatheca globular, its duct very long, and in- 
serted unusually low, much farther down than in M/. hutsont. The 
dart sack (d. s.) is large, and near its base, on the side facing the 
vagina, the two mucus glands (m. gl.) are inserted close together (as 
shown in fig. 10, a diagrammatic view of these organs). The mucus 
glands descend and their enlarged ends lie near the base of the dart 
sack. The measurements are: length of penis (to insertion of re- 
tractor), 3 mm.; length of epiphallus, 1.8 mm.; length of flagellum, 
4mm.; length of vagina, 1.8 mm. The jaw has about 6 unequal 
ribs, grouped in its median part. 

This species is doubtless related to both Sonorella baileyi and S. 
fishert Bartsch, both of which differ in various details of sculpture. 
It stands nearest to Micrarionta hutsont Clapp, having the same type 
of embryonic sculpture; but that species has a dark band above the 
perifery, bordered with white above, and a much larger aperture. 

Cotypes are in the collections of Ferriss and the Academy of 
Natural Sciences (No. 94783). 

The anatomical data obtained from living examples of the species 
hutsoni and desertorum by the junior author, indicate that we went 
too far in referring species from the lower Colorado basin to the 
genus Sonorella. It now seems likely that the species wolcottiana, 
tndtoensis, baileyi, fishert, lohrit, and perhaps some others, belong to 


136 THE NAUTILUS. 


Micrarionta ; a group which should apparently be given generic 
rank. Anatomically, Sonorella is not closely related to the Micra- 
rionta series, which has its center in southern and Lower California, 
and the adjacent border of Arizona. Data to be presented in our 
forthcoming report on southwestern snails collected in 1906 and 
1907 indicate that Sonorella, while remarkably varied in anatomy 
specifically, yet shows no forms in any way connecting with the Cali- 
fornian types of Helices. 


EXPLANATION OF FIGURES. 


Plate XI, figs. 6,7, 8. MM. desertorum. 

Fig. 9, genitalia of the same specimen; d.s., dart sack; epi., epi- 
phallus ; 72.. flagellum ; m. gl., mucus glands ; p., penis ; sp. d., lower 
portion of the duct of thespermatheca. The mucous glands and their 
ducts are shaded. 

Fig. 10. Diagram of dart sack and mucous glands viewed from 
the side towards the vagina, showing the contiguous insertions of the 
mucous ducts. 


SOME NEW CALIFORNIAN SHELLS. 


BY WILLIAM HEALEY DALL. 


Rissoa (ALVANIA) GRIPPIANA Dall, n. sp. 


Shell small, brownish, solid, cancellate, with one and a half smooth 
nuclear and five and a half sculptured whorls, nucleus flattish, 
blunt, remaining whorls rotund, evenly enlarging; last whorl with 
13-14 axial ribs crossed by somewhat more slender, equal, equidis- 
tant, spiral threads not tuberculate at the intersections, with three 
somewhat stouter spirals on the base; earlier whorls with two and 
then three spiral threads between the sutures; suture indistinct, 
aperture obovate, rounded in front, slightly angular behind, with a 
much thickened lip which in senile specimens is duplex at the mar- 
gin. There is a very minute chink but no umbilicus. Length 3, 
max. diam. 1.5 mm. 

Type specimens from Todos Santos Bay, Lower California, be- 
tween tides, Hemphill, U. S. Nat. Mus. 46171; others from 12 
fathoms sand, off the entrance to San Diego harbor, C. W. Gripp; 


THE NAUTILUS. 137 


others at various localities north to San Pedro and Catalina Island, 
California, mostly beach specimens. The species recalls R. tumida 
Carpenter, but is much more elevated, though less so than R. tne 
eurvata Cpr., which is also a thinner shell. All three have very 
nearly identical sculpture. 


Brea GRIPPI Dall, n. sp. 

Shell small, straw-color or pale brown with occasional] spiral bands 
of darker brown, or all brown ; six-whorled, of which the first whorl 
and a half are white, polished, smooth and turgid, the subsequent 
portion of the shell having a dull surface; earlier whorls with the 
periphery nearer the anterior suture, the whorl behind the periphery 
somewhat flattened and compressed, crossed by low obscure riblets, 
about a dozen on the fourth whorl, which become obsolete later; the 
whorl in front of the periphery shows no axial sculpture ; the whole 
whorl is spirally sculptured with narrow sharp incised lines, one 
dividing the space behind the periphery, and about five in front of 
the periphery on the penultimate whorl; on the last whorl between 
the periphery and the siphonal fasciole there are about twelve of 
these lines, though they probably vary in number with the indi- 
vidual, while the incremental lines are moderately conspicuous ; 
outer lips thin, simple; pillar lips with a small deposit of white 
callus ; aperture narrow, lunate ; canal very short, wide, with an in- 
conspicuous fasciole. Length 9, of spire 5, of aperture 4; max. 
diam. 3.5 mm. 

Dredged off San Diego Bay, about five miles south of the entrance 
in fifteen fathoms, by C. W. Gripp, on a bottom of broken shell. 
This is a very well marked species, hardly to be compared with any 
other known from the coast. Seven specimens were obtained of 
which two are in Mr. Gripp’s collection. 

The shell has much the aspect of an Anachis but one specimen 
retained the dried animal and by carefully soaking it out it proved to 
be a Pleurotomoid, with a short oval operculum witb apical nucleus 
like that of Bela, though the shell from the absence of the strong 
axial ribs characteristic of most of the northern Belas has a very 
different aspect from the familiar forms of that genus. The animal 
is white, with short acute tentacles and very small black eyes. 


138 THE NAUTILUS. 


NEW SPECIES OF ANCYLIDE. 


BY BRYANT WALKER. 


ANCYLUS (FERRISSIA) HENDERSONI n. sp. PI. ix, figs. 8-10. 

Shell small, thin, delicate, oval, slightly wider anteriorly, right 
side nearly straight, left side regularly curved ; obtusely elevated ; 
light horn-colored, apex very obtuse, depressed, not projecting above 
the normal outline of the shell, and only slightly deflected toward the 
right; apical pit in the centre and looking upwards; apical striz 
strong and regular, originating from the circumference of the apical 
pit and projecting down towards the whole upper surface of the shell, 
becoming lighter and more irregular below, comparatively few reach- 
ing the edge of the shell; lines of growth irregular, but rather strong, 
glving a reticulated appearance to the surface where they cross the 
radial striz ; anterior slope, especially above, very convex, the high- 
est point of the shell being in front of the apex; posterior slope 
slightly concave, nearly straight; left lateral slope convex, right 
slope nearly straight. 

Length 2.5, width 1.5, alt. .75 mm. 

Type (No. 25707 Coll. Walker) from Lake Waccamaw, N. C. 
Cotypes in the collections of Messrs. Jno. B. Henderson, Jr., and G. 
W. H. Soelner, of Washington, D. C. This small species was found 
by Messrs. Henderson and Soelner in the pools of the swampy woods 
around the shore of Lake Waccamaw in the fall of 1906. 

It is well characterized by its obtusely elevated shape, blunt apex 
and radiating ribs or strie. In sculpture it resembles A. borealis 
Mse., but differs from its thin, delicate shell, smaller size and differ- 
ent proportions, being relatively less elevated and with a longer and 
more sloping posterior outline. 


ANCYLUS (FERRISSIA) NOVANGLI£ n. sp. PI, ix, figs. 5, 6 and 7. 


Shell small, depressed, elongate oval, sides nearly parallel, the 
left being slightly more curved than the right; regularly rounded at 
the extremities; apex prominent, bluntly rounded, situated on the 
posterior third, very eccentric, turned decidedly to the right, apical 
strie prominent; lines of growth fine and regular; anterior slope 
long, convex with numerous, fine, radiating ribs, which extend to 
the periphery ; posterior slope oblique, nearly straight below the 


THE NAUTILUS. 139 


swell of the apex; left slope very convex, more or less compressed 
toward the apex ; right slope nearly straight below the protrusion of 
the apex. 

Length 3.25, width 1.75, alt. 1 mm. 

Types (No. 22502 Coll. Walker) from a small pond near Cam- 
bridge, Mass., collected by Owen Bryant. Cotypes in collections of 
Mr. Bryant and the Philadelphia Academy. 

This little species is easily distinguished by its narrow, elongated, 
depressed form, very eccentric apex and the costulate anterior slope. 


ANCYLUS (FERRISSIA) HINKLEYI, n. sp. Pl. ix, figs. 11-13. 


Shell oval, slightly wider anteriorly, sides equally curved, ele- 
vated, conic; apex nearly central, being only slightly behind the 
longitudinal center and very slightly deflected toward the right, 
acute, erect, with strong radial striz ; light greenish horn color with 
the apex bright rose color; anterior slope slightly convex, posterior 
slope slightly concave, lateral slopes of about the same slight con- 
vexity ; surface smooth, lines of growth fine, but irregular, no trace 
of ribs or radial striw, except at the apex. Length 4.75, width 3.5, 
alt. 2.25 mm. 

Type (25661 Coll. Walker) from the Ohio River at Golconda, Ill. 
Cotypes in the collection of A. A. Hinkley, DuBois, Ill. Also from 
the Ohio at Elizabethtown, Il. (Coll. Hinkley), and from Kentucky. 
(Coll. Am. Mus. Nat. Hist.). 

Four specimens were submitted for examination by Mr, Hinkley 
from the above localities. In two of the specimens, in which the 
apices are not at all eroded, the truncation is oblique, the apical pit 
opening towards the left. The right margin of the truncation is 
high and smooth, the apical strie beginning just below the smooth 
border of the truncation. On the left and lower margin of the pit 
the apical strie radiate from the center. A. hinkleyi by reason of 
its rosy apex groups, apparently, with A. elatior, filosus and rhodacme. 
Unfortunately the shells had been cleaned, so that at present it is 
impossible to say whether it shares the anatomical peculiarities com- 
mon to those forms." 

It differs from elatior by its smaller size, acute, erect apex and 


1These species and probably all the pink-tipped Ancyli have a very peculiar 
lingual dentition, quite different from any of the other Ancyli and form a group 
of probably generic rank, a full description of which will be published shortly. 


140 THE NAUTILUS. 


concave posterior slope. It stands nearest to A. filosus from which 
it differs by the nearly central, acute apex, proportionately longer 
and concave posterior and less convex anterior slope and smooth. 
surface. It is so entirely different in shape from rhodacme that 
there is no danger of confounding them. 

The two specimens from Kentucky, received by the Am. Mus. 
of Nat. Hist. from Anthony as A. elatior are apparently identical 
with this species (see Naur. XVIII, p. 79). 


ANCYLUS (L&VAPEX) HEMISPHERICUS n. sp. PI. ix, figs. 14, 15 
and 16. 


Shell obtusely elevated, broadly oval or subcircular, sides almost 
equally rounded ; apex subcentral, very obtuse and only slightly in- 
clined toward the right ; smooth, light yellowish horn color ; anterior 
slope very convex, posterior somewhat less so; lateral slopes about 
equally convex, the left being as usual, somewhat the longer; 
lines of growth rather prominent and irregular, more or less rippled 
by subobsolete, irregular radial striz. 

Length (type) 3.5, width 3, alt. 1.56 mm. 

Length (cotype) 3.8, width 3.1, alt. 1.8 mm. 

Length (Decatur) 4.1, width 3.25, alt. 1.8 mm. 

Types (No. 20785 Coll. Walker) from Georgia. Cotypes in the 
collections of the Kent Scientific Museum, Grand Rapids, Mich., 
and the Philadelphia Academy. Also from Decatur, Alabama. 

The type lot formed part of the DeCamp collection now in the 
Kent Scientific Museum. Unfortunately no definite locality is 
given and no further information as to the history of the specimens 
is attainable. 

This species is very distinct by its globose, almost hemispherical 
shape. None of the shells have a perfect apex. 

The type is not quite full grown, but was selected as being less 
eroded and showing more exactly the contour of the shell. The 
other measurements given are from mature shells which show the 
length and width accurately, but owing to erosion are proportionately 
less elevated. With the erosion of the apex the anterior and 
posterior slopes have nearly the same convexity, and the specific 
name adopted becomes even more appropriate than in the type. 

The specimens from Decatur, Ala., also collected by De Camp, are 
slightly larger and heavier than the types, but evidently the same 
species. 


THE NAUTILUS. 141 


CLAMS AND THE EARTHQUAKE. 


BY ROBERT E. C. STEARNS. 

Under the head of ‘' Abalones and the Earthquake,” in the April, 
1907, number of Tur Navrius, my brief article contained all that 
I had been able to learn up to the preceding February, of the effect 
of the earthquake of April 18th, 1906, upon the marine life of the 
coast. The Abalones (Haliotis) in the neighborhood of Morro Rock, 
about 190 miles south of the entrance to San Francisco Bay, were 
found in abundance, but all dead, and the earthquake it was pre- 
sumed did the killing. Recently the Indians and the Spanish popu- 
lation about Marshall’s and Tomales Bay, who for several years have 
been engaged in supplying the local “clam” Paphia staminea Conr. 
(2 Tapes staminea auct.), for the San Francisco market, have been, 
it is so reported, thrown out of employment, the bay having become so 
shallow as to preclude the use of boats, and clam-diggers state that 
since the great earthquake no clams have been found there. In many 
instances these toilers of the clam banks have been reduced to 
poverty. 

In and around Tomales Bay which is about fifty miles north of 
the entrance to the Bay of San Francisco, the quake was far more 
severe than at the southerly abalone locality mentioned, being in 
the direct northwesterly line of the main movement. Dr. Gilbert’ 
remarks ‘‘ the only notable water waves generated by the shock were 
in Tomales Bay where a group of waves estimated to be 6 or 8 feet 
high, came to the northeastern shore. The mud which forms the 
bed of the bay, was shifted and ridged and more or less horizontal 
displacement occurred as well as a marked shallowing of the waters.” 
At Bolinas, which is north of the Golden Gate, and about thirty miles 
south of the Tomales locality, the shore of the lagoon or little inner 
bay, the home, when I was there in June, 1866, of Tresus nuttalli 
Conrad (Schizotherus nuttalli of Carpenter), was cracked, and the 
mud near the head of the lagoon was disturbed as well as the general 
region thereabout according to Mr. Gilbert. The “little round 
clam ” as the Tomales form is called, is a favorite with many epicures, 


1 Bulletin No, 324. The San Francisco Earthquake, etc., etc., of April 18, 
1906. Washington, 1907. 


142 THE NAUTILUS. 


but its tough little foot is not conducive to the happiness of persons 

of feeble digestion. The fine clam Z7esus is seldom, if ever, seen 

on the stalls in the San Francisco markets. It is noble in size and 

a patrician in quality, and makes a most delicious soup or chowder. 
Los Angeles, Cal., March 8, 1908. 


THE MOLLUSCA OF NORTH HAVEN, MAINE. 


BY HENRY JACKSON, JR. 


The Fox Islands constitute an archipelago in the mouth of Penob- 
scot River. The largest of these islands is Vinal Haven, and next 
in size and position is North Haven. On either side are bays rang- 
ing from 4 to 8 fathoms in depth, with many varieties of bottom. 
The land is equally well adapted for shell collecting, except that there 
are practically no hard-wood trees. It is very peculiar that quite a 
number of species have one small place in which they are abundant, 
and they are not to be foundelsewhere. The fresh-water shells have 
a very fair chance; there is a large pond about one mile long which 
promises large returns in time. ‘There are also several semi-marshy 
tracts in which many smaller Limneas are found. Unfortunately I 
have not been able to dredge beyond 30 fathoms. So it is to be 
hoped that more species will soon be turned up. 

My sincere thanks are due to Dr. Charles G. Weld, Prof. Edward 
S. Morse, Mr. Dwight Blaney and Mr. C. W. Johnson, for identifi- 
cation of various mollusks and other acts of kindness. 


POLYPLACOPHORA. 


Trachydermon ruber, Linné. Trachydermon albus,  Linné. 


Common. Rather common. 
PELECYPODA. 

Nucula proxima, Say. Very Yoldia myalis, Coutbouy. Rare. 
common. Large _ specimens A few specimen dredged in 
were found in four fathoms eight fathoms water. 
mud. Yoldia lucida, Lovén. Two 

Yoldia limatula, Say. Very specimens dredged in twenty 
common. Beautiful specimens fathoms mud. The eggs were 
over two inches long were ob- in the shell. 


tained. 


THE NAUTILUS. 


Yoldia thracieformis, Storer. 
Several old broken valves and 
an occasional young specimen. 

Anodonta cataracta, Say. 

Unio complanatus, Say. 

Pecten magellanicus, Gmelin. 
Pecten islandicus, Miiller. Rare. 
Single valves occasionally. — 

Anomia simplex, d’Orbigny. 

Anomia aculeata, Miller. 

Mytilus edulis, Linné. 

Modiolaria nigra, Gray. Rare. 
Several broken specimens. 

Modiolaria discors, Linné. 

Crenella glandula, Totten. 


Crenella decussata, Montagu. 
Rare. Same locality as C. 
glandula. 


Periploma fragilis, Totten. 

Thracia Couthouy. 
Rare. 

Thracia myopsis, Moller. 

Pandora gouldiana, Dall. 

Lyonsia hyalina, Conrad. Com- 
mon. Sandy mud, ten fathoms. 


conradi, 


143 


Ex- 
Same localities 


Lyonsia arenosa, Miller. 
tremely rare. 
as L. hyalina. 

Cyclas islandica, Linné. 

Astarte undata, Gould. 

Astarte subaequilatera, Sowerby. 

Pisidium abditum, Hald. 

Spherium partumeium, Say. 

Venericardia novanglie, Morse. 
Rare. 

Venericardia borealis, Conrad. 

Thyasira gouldit, Philippi. 

Cardium pinnulatum, Conrad. 

Cardium  ciliatum, _ Fabricius. 
Rare. 

Callocardia morrhuana, Linsley. 
Rare. 

Macoma balthica, Linne. 

Mucoma calearea, Gmelin. 

Mya arenaria, Linn. 

Saxicava arctica, Linn. 

Lymne«a humilis, Say. 

Lymnzxa umbilicata, Adams. 

Lymnea desidiosa, Say. 

Lymneza columella, Say. 


SCAPHOPODA. 


Dentalium entalis, Linné. 


Common in deep water, mud. 


GASTROPODA. 


Acmea alveus, Conrad. Very 
common on Zostera marina. 
Acmea testudinalis, Miller. Ra- 

rer than alveus. 
Lepeta ceca, Miiller. © 
Punceturella noachina, Linn. 
Margarita helicina, Fabr. 
Margarita groenlandica, Gmelin. 
Very rare. 


Natica clausa, Broderip & Sow- 
erby. Rather rare. 

Lunatia heros, Say. 

Lunatia heros, var. triseriata, 


Say. Found 
both in deep and shallow water, 


Very common. 


but never in company with 
Lunatia heros. 
Velutina levigata, Linn. 


144 THE NAUTILUS. 


Velutina zonata, Gould. Rarer 
than V. levigata. 

Crucibulum striatum, Say. Rare 
alive. Common dead. 

Littorina littorea, Linn. 

Littorina rudis, Donovan. 

Littorina palliata, Say. 

Lacuna vincta, Montagu, on Zos- 
tera marina. 

Lacuna vincta, var. fusca. On 
large Laminaria. 

Cingula aculeus, Gould. Common 
at base of fucus. 

Cingula carinata, Mighels & 
Adams. Rare. A few speci- 
mens in sandy mud, ten 
fathoms. 

Skenea planorbis, Fabricius. 

Amanicola limosa, Say. 

Trichotropis borealis, Broderip 
& Sowerby. 


Purpura lapillus, Linn. Very 
abundant; var. imbricata is 
also common. 

Buccinum undatum, Linn. 

Chrysodomus decemcostatus, Say. 
Rather uncommon. 

Tritonofusus stimpsoni, Méorch. 
Rare. 

Tritonofusus pygmeus, Stimpson. 

Nassa trivittata, Say. 

Nassa obsoleta, Say. 

Columbella rosacea, Gould. Rare. 

Bela ineisula, Verrill. 

Bela nobilis, Moller. One speci- 
men. 

Bela harpularia, Couthouy. 
Bela decussata, Couthouy. Rare, 
in company with B. incisula. 
Retusa gouldii, Couthouy, Rare, 

Retusa pertenuis, Mighels. 

Cylichna alba, Brown, 


PULMONIFERA. 


Zodgenites harpa, Morse. Very 
common. 

Vallonia pulchella, Muller. 

Polygyra fraterna, Say. 

Strobilops labyrinthica, Say. 

Bifidaria pentodon, Say. 

Pupilla muscorum, Linné. 

Vertigo gould, Binney. 

Cochlicopa lubrica, Miller. 

Vitrea tndentata, Say. One im- 
mature specimen. 

Vitrea hammonis, Strom. 

Zonitoides arborea, Say. 


Pyramidula alternata, Say. 

Pyramidula cronkhitet anthonyi, 
Pilsbry. 

Zonitoides exiguus, Stimpson. 

Zonitoides minuscula, Binney. 
Extremely rare. 

Carychium exiguum, Say. 

Helicodiscus parellelus, Say. 

Aplexa hypnorum, Linn. 

Succinea retusa, Lea. 

Succinea avara, Say. 

Succinea ovalis var. tottentana, 


Lea. 


—_ 


2 
4 


QL Nautilus 
401 

N25 

ve19=21 


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