50.6

52

Volume: XXII

J -

THE FESTIVUS

A publication of the San Diego Shell Club

May 9, 1991

ISSN: 0738-9388

Supplement 2 (1 99 0)

Additions to the Panamic Province Bivalve (Mollusca) Literature

■i

Carol Skoglund

Pitar (Hysteroconcha) lupanaria (Lesson, 1 830) Front cover: exterior of left valve Inside cover: detail showing dentition

Cover illustrations: Wesley M. Farmer Cover design: Suzanne H. Parlett

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Vol. XXII (Suppl. 2 to 1990)

mot

THE FESTIVUS

TABLE OF CONTENTS

Page i

Class BIVALVIA

Subclass AUTOBRANCHIA Superorder PRIONODONTA Order ARCOIDA

Order SOLEMYOIDA		Family ARCIDAE
Suborder SOLEMYINA		Subfamily ARCINAE
Superfamily SOLEMYACEA		Genus Area	6
Family SOLEMYIDAE		Genus Barbatia	6
Genus Solemya	2	Genus Fugleria	7
Family ACHARACIDAE		Subfamily ANADARINAE
Genus Acharax	2	Genus Anadara	7
Suborder NUCINELLINA		Genus Bathyarca	8
Superfamily MANZANELLACEA		Genus Grandiarca	8
Family NUCINELLIDAE		Genus Lunarca	8
Genus Nucinella	3	Subfamily STRIARCINAE
Order NUCULOIDEA		Genus Arcopsis	8
Superfamily NUCULACEA		Family NOETIIDAE
Family NUCULIDAE		Subfamily NOETIINAE
Subfamily NUCULINAE		Genus Noetia	8
Genus Nucula	3	Superfamily LIMOPSACEA
Subfamily NUCULOMINAE		Family LIMOPSIDAE
Genus Ennucula	3	Genus Limopsis	9
Superfamily NUCULANACEA		Superfamily GLYCYMERIDACEA
Family NUCULANIDAE		Family GLYCYMERIDIDAE
Subfamily NUCULANINAE		Genus Glycymeris	9
Genus Nuculana	4	Genus Tucetona	9
Genus Jupiteria	4	Family PHILOBRYIDAE
Genus Saccella	4	Genus Philobrya	9
Genus Adrana	4	Superorder ISOFILIBRANCHIA
Subfamily LEDELLINAE		Order MYTILOIDA
Genus Ledella	5	Superfamily MYTILACEA
Genus Ledellina	5	Family MYTILIDAE
Subfamily SPINULINAE		Subfamily MYTILINAE
Genus Bathyspinula	5	Genus Mytilus	9
Family SAREPTIDAE		Genus Brachidontes	10
Subfamily SAREPTINAE		Genus Choromytilus	10
Genus Sarepta	5	Genus Mytella	10
Subfamily YOLDIINAE		Genus Septifer	10
Genus Megayoldia	5	Subfamily CRENELLINAE
Subfamily YOLDIELLINAE		Genus Crenella	10
Genus Yoldiella	5	Genus Gregariella	11
Family TINDARIIDAE		Genus Lioberus	11
Genus Tindaria	5	Genus Megacrenetta	11
Family NEILONELLIDAE		Subfamily LITHOPHAGINAE
Genus Neilonella	6	Genus Lithophaga	11
Family MALLETIIDAE		Genus Adula	12
Genus Malletia	6	Genus Botula	12
Genus Minor malletia	6	Genus Leiosolenus	12

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Vol. XXII (Suppl. 2 to 1990)

Subfamily MODIOLINAE		Superfamily DIMYACEA
Genus Modiolus	12	Family DIMYIDAE
Genus Amygdalum	12	Genus Dimya	15
Genus Benlhomodiolus	12	Superfamily PLICATULACEA
Genus Dacrydium	13	Family PLICATULIDAE
Subfamily BATHYMODIOLINAE		Genus Plicatula	15
Genus Bathymodiolus	13	Suborder PECTINNA
Superorder PTERIOMORPH1A		Superfamily PECTINACEA
Order PTERIOIDA		Family PECTINIDAE
Suborder PINNINA		Genus Argopecten	16
Superfamily PINNACEA		Genus Chlamys	16
Family PINNIDAE		Genus Crassadoma	16
Genus Pinna	13	Genus Cyclopecten	16
Genus Atrina	13	Genus Delectopecten	16
Genus Streptopinna	13	Genus Flabellipecten	16
Suborder PTERIINA		Genus Hyalopecten	17
Superfamily PTERIACEA		Genus Leptopecten	17
Family PTERIIDAE		Genus Nodipecten	17
Genus Pteria	13	Genus Oppenheimopecten	17
Genus Pinctada	13	Genus Pacipecten	17
Family ISOGNOMONIDAE		Genus Pseudamussium	18
Genus Isognomon	13	Family PROPEAMUSSIIDAE
Family MALLE I DAE		Genus Propeamussium	18
Genus Malleus	14	Family SPONDYLIDAE
Order OSTREOIDA		Genus Spondylus	18
Suborder OSTREINA		Order LIMOIDA
Superfamily OSTREACEA		Superfamily LIMACEA
Family GRYPHAEIDAE		Family LIMIDAE
Subfamily PYCNODONTEINAE		Genus Lima	18
Tribe HYOTISSINI		Genus Acesta	18
Genus Hyotissa	14	Genus Limaria	19
Genus Parahyotissa	14	Genus Limatula	19
Family OSTREIDAE		Superfamily ANOMLACEA
Subfamily LOPHINAE		Family ANOMIIDAE
Tribe LOPHINI		Genus Anomia	19
Genus Dendostrea	14	Genus Pododesmus	19
Tribe MYRAKEENINI		Family PLACUNIDAE
Genus Myrakeena	14	Genus Placunanomia	19
Subfamily OSTREINAE
Tribe OSTREINI		Subclass HETERODONTA
Genus Ostrea	15	Order VENEROIDA
Genus Ostreola	15	Superfamily CRASSATELLACEA
Tribe UNDULOSTREINI		Family CRASSATELLIDAE
Genus Undulostrea	15	Subfamily CRASSATELLINAE
Tribe STRIOSTREINI		Genus Eucrassatella	19
Genus Saccostrea	15	Subfamily SCAMBULINAE
Genus Striostrea	15	Genus Crassinella	20
Tribe CRASSOSTREINI		Family CARDINIIDAE
Genus Crassostrea	15	Genus Tellidorella	20

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Page iii

Superfamily CARDITACEA		Superfamily GALEOMMATACEA
Family CARDITIDAE		Family GALEOMMATIDAE
Subfamily CARDITINAE		Genus Bellascintilla	25
Genus Cardita	20	Genus Cymatioa	26
Subfamily CARDITESINAE		Genus Galeommella	26
Genus Cardites	21	Genus Tryphomyax	26
Genus Strophocardia	21	Family ERYCINIDAE
Subfamily CARDITAMERINAE		Subfamily ERYCINIINAE
Genus Carditamera	21	Genus Amerycina	26
Genus Cyclocardia	21	Subfamily LASAEINAE
Genus Pleuromeris	21	Genus Lasaea	26
Superfamily CORBICULACEA		Genus Pseudopythina	26
Family CORBICULIDAE		Family KELLI ID AE
Genus Polymesoda	21	Subfamily KELLIINAE
Superfamily DREISSENACEA		Genus Kellia	27
Family DREISSENIDAE		Genus Aligena	27
Genus Mytilopsis	22	Subfamily BORNIINAE
Superfamily GLOSSACEA		Genus Bomia	27
Family VESICOMYIDAE		Genus Solecardia	27
Genus Vesicomya	22	Family LEPTONIDAE
Genus Calyptogena	22	Genus Lepton	27
Superfamily ARCTICACEA		Family MONTACUTIDAE
Family KELLIELLI DAE		Subfamily MYSELLINAE
Genus Kelliella	22	Genus Mysella	27
Superfamily LUCINACEA		Subfamily OROBITELLINAE
Family LUCINIDAE		Genus Orobitella	28
Subfamily LUCININAE		Genus Isorobitella	28
Genus Lucina	22	Genus Pythinella	28
Genus Here	23	Subfamily THECODONTINAE
Genus Parvilucina	23	Genus Pristes	28
Genus Linga	23	Superfamily CYAMIACEA
Genus Codakia	23	Family SPORTELLIDAE
Genus Ctena	24	Genus Basterotia	28
Subfamily DIVARICELLINAE		Family BERNARDINIDAE
Genus Divalinga	24	Genus Bemardina	28
Subfamily MILTHINAE		Genus Halodakra	28
Genus Miltha	24	Superfamily CHAMACEA
Genus Pegophysema	24	Family CHAMIDAE
Subfamily MYRTAEINAE		Genus Chama	28
Genus Lucinoma	24	Genus Arcinella	29
Family UNGULINIDAE		Genus Pseudochama	29
Genus Diplodonta	25	Superfamily CARDLACEA
Genus Felaniella	25	Family CARDIIDAE
Genus Phlyctiderma	25	Subfamily TRACHYCARDIINAE
Family THYASIRIDAE		Genus Trachycardium	30
Subfamily THYASIRINAE		Genus Acrosterigma	30
Genus Conchocele	25	Genus Papyridea	30
Subfamily AXINOPSIDINAE		Subfamily FRAGINAE
Genus Adontorhina	25	Genus Trigoniocardia	31

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Vol. XXII (Suppl. 2 to 1990)

Subfamily PROTOCARDIINAE		Genus Macoma	41
Genus Nemocardium	31	Genus Psammotreta	42
Subfamily LAEVICARDIINAE		Genus Strigilla	42
Genus Laevicardium	31	Genus Temnoconcha	42
Superfamily VENERACEA		Family DONACIDAE
Family VENERIDAE		Genus Donax	42
Subfamily VENERINAE		Genus Iphigenia	44
Genus Periglypta	31	Family PSAMMOBIIDAE
Genus Globivenus	31	Subfamily PSAMMOBIINAE
Subfamily CIRCINAE		Genus Gari	44
Genus Gouldia	32	Genus Heterodonax	45
Subfamily MERETRICINAE		Subfamily SANGUINOLARIINAE
Genus Tivela	32	Genus Sanguinolaria	45
Genus Transennella	32	Genus Nuttallia	45
Subfamily PITARINAE		Subfamily SOLECURTINAE
Genus Pitar	33	Genus Solecurtus	45
Genus Amiantis	34	Genus Tagelus	45
Genus Megapitaria	34	Family SEMELIDAE
Subfamily DOSINIINAE		Genus Semele	45
Genus Dosinia	34	Genus Abra	48
Subfamily CYCLININAE		Genus Cumingia	48
Genus Cyclinella	34	Genus Semelina	48
Subfamily CLEMENTINIINAE		Superfamily SOLENACEA
Genus Clementia	34	Family SOLENIDAE
Genus Compsomyax	34	Genus Solen	48
Subfamily TAPETINAE		Family CULTELLIDAE
Genus Eurhomalea	35	Genus Ensis	48
Genus Irus	35	Order MYOIDEA
Subfamily CHIONINAE		Suborder MYINA
Genus Chione	35	Superfamily MYACEA
Genus Chionopsis	36	Family MYIDAE
Genus Timoclea	36	Genus Cryptomya	49
Genus Mercenaria	36	Genus Sphenia	49
Genus Protothaca	36	Family CORBULIDAE
Family PETRICOLIDAE		Genus Corbula	49
Genus Petricola	37	Family SPHENIOPSIDAE
Genus RupeUaria	37	Genus Spheniopsis	50
Superfamily MACTRACEA		Genus Grippina	50
Family MACTRIDAE		Superfamily GASTROCHAENACEA
Genus Mactra	38	Family GASTROCHAENIDAE
Genus Harvella	38	Genus Gastrochaena	50
Genus Mactrellona	38	Superfamily HIATELLACEA
Genus Mulinia	38	Family HIATELLIDAE
Genus Raeta	38	Genus Hiatella	50
Genus Rangia	39	Suborder PHOLADINA
Genus Spisula	39	Superfamily PHOLADACEA
Superfamily TELLINACEA		Family PHOLADIDAE
Family TELLINIDAE		Subfamily PHOLADINAE
Genus Tellina	39	Genus Pholas	50
Genus Leporimetis	41	Genus Bamea	50
Genus Cymatoica	41	Genus Cyrtopleura	50

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THE FESTIVUS Page v

Genus Zirfaea 50

Subfamily JOUANNETIINAE

Genus Jouannetia 51

Genus Pholadopsis 51

Subfamily MARTESIINAE

Genus Martesia 51

Genus Diplot hyr a 51

Genus Parapholas 51

Subfamily XYLOPHAGAINAE

Genus Xylophaga 51

Family TEREDINIDAE Subfamily TEREDININAE

Genus Teredo 51

Genus Lyrodus 51

Genus Psiloteredo 52

Genus Uperotus 52

Subfamily BANKIINAE

Genus Bankia 52

Genus Nausitora 52

Genus Nototeredo 52

Subclass ANOMALODESMATA Order PHOLADOMYOIDA Superfamily PANDORACEA Family PANDORIDAE

Genus Pandora 52

Family LYONSIIDAE

Genus Lyonsia 53

Genus Entodesma 53

Superfamily THRACIACEA Family PERIPLOMATIDAE

Genus Periploma	53
Genus Albimanus	53
Genus Halistrepta	53
Family THRACIIDAE
Genus Thracia	54
Genus Asthenothaerus	54
Genus Bushia	54
Genus Cyathodonta	54
Superfamily POROMYACEA Family POROMYIDAE
Genus Poromya	55
Family CUSPIDARIIDAE
Genus Cuspidaria	55
Genus Cardiomya	55
Genus Myonera	56
Genus Plectodon	56
Superfamily VERTICORDIACEA Family VERTICORDIIDAE
Genus Verticordia	56
Genus Halicardia	56
Genus Haliris	56
Genus Lyonsiella	56
Genus Policordia	56

LITERATURE CITED	57
INDEX	64

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Page 1

ADDITIONS TO THE PANAMIC PROVINCE BIVALVE (MOLLUSCA)

LITERATURE - 1971 TO 1990

CAROL SKOGLUND Santa Barbara Museum of Natural History 2559 Puesta del Sol Road Santa Barbara, California, 93105

A great many changes have occurred in the Panamic Province literature since A. Myra Keen’s mammoth SEA SHELLS OF TROPICAL WEST AMERICA was published in 1971. New species have been named, taxonomic relationships redefined, and geographic distributions better understood. The purpose of this paper is to draw together as many bivalve citations as possible and tie them to the fauna at the species level so that each reader can make his/her own final judgments. Earlier papers in this series cover the Polyplacophora (Skoglund, 1989) and the Opisthobranchia (Skoglund, 1991a).

The Panamic Province lies along the Pacific coastline of the Americas between latitude 25°N and 6°S. There are many references to "Baja California," Mexico, in the literature of the Province. The correct names of the two political divisions of the peninsula are Baja California, the state north of the 28th parallel, and Baja California Sur, the state south of the 28th parallel. Previously published references to Baja California Norte are listed herein as Baja California.

A special effort has been made to include records of occurrence in the major offshore islands, including the Islas Revillagigedo, Mexico; L’ile Clipperton, France; Isla del Coco, Costa Rica; and the Islas Galdpagos, Ecuador.

Suprageneric taxa have been rearranged by several workers since 1971, including Waller (1978), Yonge & Morton (1980), Morton (1981), Boss (1982), Allen & Hannah (1986), Maxwell (1988) and Vaught (1989). Because this paper is meant to be used with Keen (1971), the original order Keen used has been preserved wherever possible. Numbers from Keen are used when available, but may no longer be in numerical order because some changes are unavoidable.

Only those species with changes since 1971 are included. Species are listed alphabetically within a genus. Taxa that differ from those given in Keen

(1971) are in bold type. Authors and publication dates are given only for those higher taxa in bold type. Synonyms are listed as published by each author, with the exception that those shown in Keen (1971) are not repeated. Where authors disagree, both versions are shown in the order they were published.

Most distributional records have been included, but be aware of the possibility of errors in shell identifications.

Many of the taxonomic changes in the Panamic Province literature are a result of Bernard’s 1983 work on the bivalves of the eastern Pacific Ocean. Some of his citations, however, have not been used here because he overlooked significant earlier papers. Many of the new distributional records herein have so been taken from Bernard. His distributions are given only by approximate latitudes, such as 28°N-45°N. The northern boundary of the Panamic Province is usually considered to be Bahia Magdalena (about 25°N) on the west coast of Baja California Sur, and 31°N at the head of the Gulf of California (Table 1). Because a record of 28°N, for instance, could be either within the Gulf and therefore part of the Panamic fauna, or on the west side of Baja California and outside of the Panamic Province, some ambiguous Bernard distributions have not been included.

I thank those who have contributed to this paper. Dr. Eugene V. Coan, Jules & Carole M. Hertz, Walter E. Sage III, Paul H. Scott, Dr. Donald R. Shasky and Kay C. Vaught called citations to my attention. Gladys Weber and Virginia Upton edited early drafts. A special thanks to Dr. Coan who critically read the manuscript and offered many valuable suggestions.

Please call omissions and corrections to my attention, as there are bound to be citations I have missed.

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Vol. XXII (Suppl. 2 to 1990)

Baja California

West Coast	East Coast
Ensenada	San Felipe Bahia de los Angeles
Isla Cedros	Bahia Santa Inez
Bahia Magdalena	Bahia La Paz
Cabo San Lucas

Table 1. Approximate

Class BIVALVIA Subclass PROTOBRANCHIA Follows Maxwell (1988)

Order SOLEMYOIDA Suborder SOLEMYINA Dali, 1889 Superfamily SOLEMYACEA Family SOLEMYIDAE Genus Solemya Lamarck, 1818 Subgenus Petrasma Dali, 1908

2 Solemya (P.) panamensis Dali, 1908. Shell interior figured showing that the prop supporting the "chondrophore" is anterior to the posterior adductor scar (Gemmell, Myers & Hertz, 1979). Distribution: Oaxaca, Mexico, to Panama. More northern records are of

Mexican Mainland to Peru

Latitude
32°N
31°N	Puerto Penasco, Sonora
29°N	Bahia Kino, Sonora
28°N	Bahia San Carlos, Sonora
28°N	Guaymas, Sonora
27°N
25°N
24°N
23°N	MazatHn, Sinaloa
20°N	Bahia Chamela, Jalisco
17°N	Acapulco, Guerrero
15°N	Golfo de Tehuantepec
11°N	San Juan del Sur, Nicaragua
10°N	L’ile Clipperton (France)
10°N	Nicoya, Costa Rica
9°N	Kobbe Beach, Panama
6°N	Isla del Coco, Costa Rica
5°N	Bahia Cuevita, Colombia
0°	Islas GaHpagos, Ecuador
2°S	Santa Elena, Ecuador
6°S	Punta Aguja, Peru

latitudes of major text sites

other species (Bernard, 1980). Length: 47.3 mm (Draper, 1987).

3 Solemya (P.) valvulus Carpenter, 1864. Extend distribution to San Felipe, Baja California, Mexico. Shell interior figured (Gemmell, Myers & Hertz, 1979). Distribution: 21°N-33°N. Depth: 2-400 m (Bernard, 1983a).

Family ACHARACIDAE Scarlato & Starobogatov, 1979 Genus Acharax Dali, 1908 Raised from subgenus (Bernard, 1983a; Allen & Hannah, 1986).

1 Acharax johnsoni (Dali, 1891). Add synonyms: Solemya tokunagai Yokoyama, 1925; S. ( Acharax ) tibai Kuroda, 1948 (Bernard, 1983a).

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Page 3

Suborder NUCINELLINA Scarlato & Starobogatov, 1971 Superfamily MANZANELLACEA Chronic, 1952 Family NUCINELLIDAE Genus Nucinella Wood, 1851 Subgenus Nucinella, s. s.

64 Nucinella (N. ) subdola (Strong & Herlein,

1937). Transferred to family Manzanellidae (Abbott, 1974). As family Nucinellidae

(Bernard, 1983a). Depth: 35 m (F. & L.

Poorman, 1988).

Subgenus Huxleyia A. Adams, 1860 Changed from genus (Allen & Hannah, 1986).

65 Nucinella (H.) munita (Dali, 1898). Delete. Distribution (33°N-45°N) is north of the Panamic Province (Bernard, 1983a).

Order NUCULOIDEA Superfamily NUCULACEA Family NUCULIDAE Subfamily NUCULINAE Gray, 1824 Genus Nucula Lamarck, 1799 Allen & Hannah (1986) treat Lamellinucula Schenck, 1944, as a synonym of Nucula. Maxwell (1988) makes it a subgenus of Nucula. Subgenus Nucula, s. s.

Nucula (N.) carlottensis Dali, 1897. As subgenus Lamellinucula by Bernard (1983a). Synonym: Nucula darella Dali, 1916. Distribution: Alaska to Cabo San Lucas, Baja California Sur, Mexico. Depth: 1500 to 2600 m (Bernard, 1983b).

12 Nucula (N.) chrysocoma Dali, 1908. As genus Pronucula by Knudsen (1970). Change ending from chrysocome (Keen & Coan, 1975). Add subgenus. Distribution: 7°S-45°N (Bernard, 1983a).

4 Nucula (N.) declivis Hinds, 1843. Depth: 35 m (F. & L. Poorman, 1988).

6 Nucula (N.) iphigenia Dali, 1908. Synonym: Nucula iphigenia azulensis Olsson, 1942 (Bernard, 1983a).

8 Nucula (N.) schencki Hertlein & Strong, 1970. Extend distribution across Gulf of California

to Cabo Tepoca, Sonora, Mexico (Skoglund, 1974).

15 Nucula (N.) taeniolata Dali, 1908. Add subgenus (Bernard, 1983a).

Subgenus Lamellinucula Schenck, 1944 As a synonym of Nucula (Allen & Hannah, 1986), and as a subgenus (Maxwell, 1988).

5 Nucula (L.) exigua (Sowerby, 1833). Synonym: Nucula suprastriata Carpenter, 1903 (Hertlein & Grant, 1972). Subgenus changed from Nucula (Bernard, 1983a).

7 Nucula (L.) paytensis (A Adams, 1856).

Extend distribution north to Esmeraldas Province, Ecuador (Cruz-P., 1977). Subgenus changed from Nucula (Bernard, 1983a).

Subfamily NUCULOMINAE Maxwell, 1988 Genus Ennucula Iredale, 1931 Raised from subgenus (Woodring, 1973). Allen & Hannah (1986) use Nuculoma Cossmann, 1907, with Leionucula Thiele, 1934, and Ennucula Iredale, 1931, as synonyms. Maxwell (1988) regards Nuculoma for fossil species only, and Ennucula as the genus for extant species.

Ennucula cardara Dali, 1916. Distribution: 23°N-48°N (Bernard, 1983a).

9 Ennucula colombiana Dali, 1908. Subgenus as Leionucula. Chilean specimens should be assigned to a new species and N. colombiana reserved for shallow water tropical representatives (Bernard, 1983a). Drawings of holotype. Length: 6 mm. Depth: 11 to 25 m. Extend distribution north to San Felipe, Baja California, and to Guaymas, Sonora, Mexico (Gemmell, Myers & Hertz, 1987). Depth: 35 to 100 m (F. & L. Poorman, 1988).

10 Ennucula linki Dali, 1916. Subgenus as

Leionucula. Distribution: 28°N-34°N (Bernard, 1983a). Distribution: Tillamook, Oregon, to central Mexico. Confined to shallow water (Bernard, 1983b).

13 Ennucla panamina Dali, 1908. Length: 22 mm. Valve interior and hinge teeth figured. Distribution: 6°N to 31°N. Depth: 1975 to 3058 m (Knudsen, 1970). As subgenus

Leionucula by Bernard (1983a).

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Vol. XXII (Suppl. 2 to 1990)

Superfamily NUCULANACEA Family NUCULANIDAE Subfamily NUCULANINAE H. & A. Adams, 1858 Genus Nuculana Link, 1807 Synonyms: Costelloleda Hertlein & Strong, 1940; Politoleda Hertlein & Strong, 1940; Thestyleda Iredale, 1929 (Allen & Hannah, 1986).

Subgenus Nuculana, s. s.

Nuculana (N.) amblia (Dali, 1905). Distribution: 19°N-37°N (Bernard, 1983a).

16 Nuculana (N.) costellata (Sowerby, 1833). Extend distribution north to Bahia San Felipe, Baja California, Mexico (Gemmell, Hertz & Myers, 1980). Distribution: 4°N-27°N (Bernard, 1983a). Subgenus changed (Allen & Hannah, 1986).

30 Nuculana (N.) hamata (Carpenter, 1864). Synonym: Leda hamata limata Dali, 1916. Depth: 35 to 550 m (Bernard, 1983a). Subgenus changed (Allen & Hannah, 1986).

34 Nuculana (N.) loshka (Dali, 1908). Subgenus Thestyleda added (Bernard, 1983a). Subgenus changed (Allen & Hannah, 1986).

17 Nuculana (N.) marella Hertlein, Hanna & Strong, 1940. Length: 34 mm (Draper, 1987). Subgenus changed from Costelloleda (Allen & Hannah, 1986). Depth: 100 m (F. & L. Poorman, 1988).

Nuculana (N.) peruviana (Dali, 1908).

Distribution: 6°S (Bernard, 1983a).

18 Nuculana (N.) polita (Sowerby, 1833).

Distribution: 9°N-14°N and the Islas Galdpagos, Ecuador (Bernard, 1983a). Subgenus changed from Politoleda (Allen & Hannah, 1986).

Genus Jupiteria Bellardi, 1875 Raised to genus (Maxwell, 1988).

31 Jupiteria agapea (Dali, 1908). Valve interior and hinge teeth figured. Distribution: off Gulf of California, Mexico, to Ecuador (Knudsen, 1970). Subgenus Jupiteria added. Distribution: 1°N-6°N (Bernard, 1983a).

36 Jupiteria pontonia (Dali, 1890). Extend distribution south to Peru (Abbott, 1974). Subgenus Jupiteria added (Bernard, 1983a).

Genus Saccella Woodring, 1925 As a genus by Woodring (1973), a synonym of Jupiteria Bellardi, 1875, by Allen & Hannah (1986), and a genus by Maxwell (1988).

19 Saccella acrita (Dali, 1908). Extend distribution south to Esmeraldas Province, Ecuador. Depth: 43 to 90 m (Cruz-P., 1977). Distribution: 1°N-31°N (Bernard, 1983a). Depth: 30 to 100 m (F. & L. Poorman, 1988).

20 Saccella bicostata (Sowerby, 1871). Extend distribution north to Nayarit, Mexico (Reguero & Garcia-Cubas, 1989).

21 Saccella callimene (Dali, 1908). Distribution: 10°N-37°N (Bernard, 1983a).

22 Saccella ebumea (Sowerby, 1833). Extend distribution north to Yavaros, Sonora, Mexico (Garcia-Cubas & Reguero, 1987).

23 Saccella elenensis (Sowerby, 1833). Delete all synonyms except Leda excavata Hinds, 1843 (Cruz-P., 1977). Add synonyms: Leda elenensis media Hanley, 1860; L. elenensis pyriformis Hanley, 1860; Leda elenensis gibbosa Hanley, 1860, non Nucula gibbosa Fleming, 1828, non Sowerby, 1833, non McChesney, 1860. Include Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a). Depth: 35 to 90 m (F. & L. Poorman, 1988).

24 Saccella fastigata Keen, 1958. Cruz-P. (1977) used N. gibbosa Sowerby, 1833, with N. fastigata Keen, 1958, as a synonym. Bernard (1983) used N. fastigata with N. gibbosa as a synonym. Length: 43 mm (Draper, 1987).

25 Saccella hindsii (Hanley, 1860). Distribution: Alaska to Costa Rica. Depth: 27 to 1086 m (Abbott, 1974). Distribution: 8°N-28°N (Bernard, 1983a).

26 Saccella impar (Pilsbry & Lowe, 1932).

27 Saccella omata (Orbigny, 1845). Depth: 47 and 90 m (Cruz-P., 1977).

28 Saccella oxia (Dali, 1916).

Genus Adrana H. & A. Adams, 1858

37 Adrana crenifera (Sowerby, 1833). Synonym: Laeda arcuta Sowerby, 1871. Distribution: 14°S-17°N (Bernard, 1983a).

39 Adrana exoptata (Pilsbry & Lowe, 1932). Extend distribution south to Ecuador (Olsson, 1961). In the lower figure the concentric

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sculpture should be shown more strongly as "crossing the lines of growth obliquely in the middle and posteriorly," as described by Pilsbry & Lowe (1932, p. 107) (Keen & Coan, 1975). Extend distribution north to San Felipe, Baja California, Mexico (Gemmell, Hertz & Myers, 1980). Distribution: 1°N-28°N (Bernard, 1983a).

40 Adrana penascoensis (Lowe, 1935). Extend distribution south to Laguna de Agiabampo, Sonora/Sinaloa, Mexico (Garcia-Cubas & Reguero, 1987). Depth: 30 m (F. & L. Poorman, 1988).

Subfamily LEDELLINAE Allen & Sanders, 1982 Genus Ledella Verrill & Bush, 1897

Ledella ultima (Smith, 1885). Anatomy and shell figured. Extend distribution to include the west coast of America from ca. 0° to 45°N (Filatova & Shileiko, 1984). Synonyms; Ledella messanensis, auctt., non Jeffreys, 1870, ex Seguenza MS; L. crassa Knudsen, 1970; L. bushae War6n, 1978. Anatomy and shell figured (Allen & Hannah, 1989).

Genus Ledellina Filatova & Shileiko, 1984

Ledellina olivacea Filatova & Shileiko, 1984. Anatomy and shell figured. Distribution: ca. 6°S-8°S. Depth: 5300-7400 m (Filatova & Shileiko, 1984).

Subfamily SPINULINAE Allen & Sanders, 1982 Genus Bathyspinula Filatova, 1958 Subgenus Acutispinula Filatova & Schileyko, 1984 New name for Spinula Dali, 1908, non Herrich- Schaeffer, 1856 (Filatova & Shileiko, 1984).

51 Bathyspinula (A.) calcar (Dali, 1908). Synonym: Leda (Spinula) calcarella Dali, 1908. Depth: 4063 to 6100 m (Knudsen, 1970). Delete. No Panamic Province records. Circum-Pacific, with one central Pacific site (Bertsch & Myers, 1980). Change genus and subgenus. Anatomy figured (Filatova & Shileiko, 1984). Delete L. calcarella as a synonym. It is a Bathyspinula ( Bathyspinula ) (Coan, pers. comm, 1991).

Family SAREPTIDAE A. Adams, 1860 Subfamily SAREPTINAE A. Adams, 1860 Genus Sarepta A. Adams, 1860

50 Sarepta abyssicola E. A. Smith, 1885. Delete. Distribution is outside of the Panamic Province. Occurs in the central and south Pacific (Bernard, 1983a).

Subfamily YOLDIINAE Habe, 1977 Genus Megayoldia Verrill & Bush, 1897 Raised from subgenus (Allen & Hannah, 1986).

58 Megayoldia martyria (Dali, 1897). Delete. Distribution (45°N-60°N) is not within the Panamic Province (Bernard, 1983a).

Genus Orthoyoldia Verrill & Bush, 1897 Raised from subgenus (Allen & Hannah, 1986).

59 Orthoyoldia panamensis (Dali, 1908). Synonym: Yoldia (O.) quiba Olsson, 1942 (Bernard, 1983a).

Subfamily YOLDIELLINAE Allen, 1978 Genus Yoldiella Verrill & Bush, 1897 Raised from subgenus (Bernard, 1983a; Allen & Hannah, 1986).

Subgenus Yoldiella, s. s.

60 Yoldiella (Y.) cecinella (Dali, 1916). Genus as Portlandia Morch, 1857 (Abbott, 1974), and as Yoldiella by Bernard (1983). Distribution: 24°N (Bernard, 1983a).

61 Yoldiella (Y.) dicella (Dali, 1908). Distribution: 17°N-45°N (Bernard, 1983a).

62 Yoldiella (Y.) leonilda (Dali, 1908). The fragmented type has not been figured (Knudsen, 1970).

63 Yoldiella (Y.) mantana (Dali, 1908).

Family TINDARIIDAE Verrill & Bush, 1897 Genus Tindaria Bellardi, 1875 Read: Ligament external; shell ovate, thick; beaks high (Keen & Coan, 1975).

52 Tindaria atossa Dali, 1908. Closely related to Tindaria smima Dali, 1908 [56], and may be conspecific with it (Knudsen, 1970).

53 Tindaria compressa Dali, 1908. Length: 11.5 mm. Shell interior and hinge teeth figured.

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Distribution: 6°N-30°N (Knudsen, 1970).

54 Tindaria mexicana Dali, 1908. Distribution: San Diego, California, to Acapulco, Guerrero, Mexico (Abbott, 1974). Distribution: 17°N-48°N (Bernard, 1983a).

55 Tindaria panamensis Dali, 1908. Distribution: 7°N-28°N (Bernard, 1983a).

56 Tindaria smima Dali, 1908. Closely related to Tindaria atossa Dali, 1908 [52], and may be conspecific with it (Knudsen, 1970).

Family NEILONELLIDAE Allen, 1978 Genus Neilonella Dali, 1881 Synonym: Satumia Seguenza, 1877, non Schrank, 1802 (Maxwell, 1988).

33 Neilonella lobula (Dali, 1908). Genus changed to Satumia (Bernard, 1983a).

35 Neilonella lucasana (Strong & Hertlein, 1937). Genus changed to Satumia (Bernard, 1983a). Extend distribution north to Bahia San Carlos, Sonora, Mexico (F. & L. Poorman, 1988).

Family MALLETIIDAE H. & A. Adams, 1858 Genus Malletia Moulins, 1832 Synonym: Katadesmia Dali, 1908 (Allen & Hannah, 1986).

Subgenus Malletia, s. s.

Malletia (M.) cuneata Jeffreys, 1876. As subgenus Neilo. Synonyms: Portlandia kolthoffi Hagg, 1904; Malletia pellucida Thiele, 1912; M. (Neilo) flora Dali, 1916. Length: 10.4 mm. Shell, hinge teeth and anatomy figured. Distribution: Gulf of Panama; west Pacific; Atlantic Ocean; Indian Ocean; Antarctic Ocean. Depth: 2365 to 6156 m (Knudsen, 1970). Shell variation figured (Allen, 1978). Portlandia kolthoffi and Malletia cuneata considered as separate Atlantic species in the genus Katadesmia (Bouchet & War6n, 1979). Malletia (Minomialletia) kolthoffi is correct for the Pacific species, whereas M. cuneata (Jeffreys, 1876) is a distinct Atlantic species. Distribution: 6°N-72°N, 2200-3600 m (Bernard, 1983a). As subgenus Malletia. Shell and anatomy figured. A cosmopolitan species of the abyss, with synonyms as listed above by Knudsen (1970) (Sanders & Allen, 1985).

46 Malletia (M. ) truncata Dali, 1908. Distribution: 3°N-55°N (Bernard, 1983a).

57 Malletia (M.) vincula (Dali, 1908). As genus Katadesmia (Bouchet & War6n, 1979).

Genus Minormalletia Dali, 1908 Raised from subgenus (Sanders & Allen, 1985).

47 Minormalletia arciformis (Dali, 1908).

48 Minormalletia benthima (Dali, 1908).

Subclass AUTOBRANCHIA Grobben, 1894 Follows Waller (1978).

Superorder PRIONODONTA MacNeil, 1937 Order ARCOIDA Superfamily ARCACEA Family ARCIDAE Subfamily ARCINAE Genus Area Linnaeus, 1758

66 Area mutabilis (Sowerby, 1833). Include L’lle Clipperton (France) and the Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a).

67 Area pacifica (Sowerby, 1833). Include the Islas GaHpagos, Ecuador, in distribution (Finet, 1985).

Genus Barbatia Gray, 1842 Subgenus Barbatia, s. s.

69 Barbatia (B.) lurida (Sowerby, 1833). Length: 54.1 mm (Draper, 1987).

Subgenus Acar Gray, 1857

70 Barbatia (A.) bailyi (Bartsch, 1931). Length: 9 mm. Distribution: Santa Monica, California, to Panama (McLean, 1978).

Barbatia (A.) divaricata (Sowerby, 1833). Synonyms: Area hawaiensis Dali, Bartsch & Rehder, 1938; Area laysana Dali, Bartsch & Rehder, 1938. Distribution: L’lle Clipperton (France), and the Indo-Pacific (Bernard, 1983a).

71 Barbatia (A.) gradata (Broderip & Sowerby, 1829). Include Islas Galdpagos, Ecuador, in distribution (Abbott, 1974). Similar to the Caribbean B. (A.) domingensis (Lamarck, 1819). Heath (1941) studied the anatomy (Keen & Coan, 1975). Length: 33 mm (Draper, 1987).

72 Barbatia (A.) rostae Berry, 1954. Abbott (1974) made B. rostae a synonym of B. gradata (Broderip & Sowerby, 1829). A valid species. Include Islas Galdpagos, Ecuador, in

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distribution (Bernard, 1983a). Holotype figured (Hertz, 1984).

Subgenus Calloarca Gray, 1857

73 Barbatia (C.) altemata (Sowerby, 1833). Include the Islas GaHpagos, Ecuador, in distribution (Bernard, 1983a). Extend distribution across Gulf of California to San Felipe, Baja California, Mexico (Gemmell, Myers & Hertz, 1987). Length: 46.8 mm (Draper, 1987).

Subgenus Cucullaearca Conrad, 1865

74 Barbatia (C.) reeveana (Orbigny, 1846). Add synonym: Barbatia (C.) bramkampi Durham, 1950. Include L’tle Clipperton (France) and the Islas GaHpagos, Ecuador, in distribution (Bernard, 1983a). Length: 94.9 mm (Wagner & Abbott, 1990).

Genus Fugieria Reinhart, 1937 Raised to genus (Bernard, 1983a).

75 Fugieria illota (Sowerby, 1833). Extend distribution to Punta Penasco, Sonora, Mexico, and south to Peru and the Islas GaHpagos, Ecuador. Depth: intertidal to 73 m (Hertlein & Grant, 1972). Extend distribution across the Gulf of California to San Felipe, Baja California, Mexico (Gemmell, Myers & Hertz, 1987).

Subfamily ANADARINAE Genus Anadara Gray, 1847 Subgenus Anadara, s. s.

77 Anadara (A.) adamsi Olsson, 1961. Extend distribution north to Bahia de los Angeles, Baja California, Mexico (F. & L. Poorman, 1978). Extend distribution south to Isla Gorgona, Colombia (von Prahl, 1986).

78 Anadara (A.) concinna (Sowerby, 1833).

Changed to subgenus Sectiarca Olsson, 1961 (Abbott, 1974). As subgenus Anadara

(Bernard, 1983a). Not all specimens have

grooved ribs. Grooving is a variable characteristic (Gemmell, Myers & Hertz, 1987).

79 Anadara (A.) mazatlanica (Hertlein & Strong, 1943). Extend distribution south to Mdncora,

Peru (Pena, 1971). Extend distribution north to Bahia San Carlos, Sonora, Mexico (F. & L. Poorman, 1988). Length: 82.2 mm (Draper, 1987).

80 Anadara (A.) obesa (Sowerby, 1833). Length: 32.6 mm (Draper, 1987).

81 Anadara (A.) similis (C.B. Adams, 1852).

Extend distribution south to Tumbes, Peru (Pena, 1971). Extend distribution north to the Gulf of Fonseca, El Salvador (Herndndez, 1979).

82 Anadara (A.) tuberculosa (Sowerby, 1833).

Synonyms: Area secticostata Reeve, 1844; A. valdiviana Philippi, 1887 (Bernard, 1983a). Length: 92 mm (Draper, 1987).

Subgenus Cunearca Dali, 1898

83 Anadara (C.) aequatorialis (Orbigny, 1846).

Include the Islas GaHpagos, Ecuador, in distribution (Bernard, 1983a). Length: 35 mm (Draper, 1987).

84 Anadara (C.) bifrons (Carpenter, 1857). Synonym: Area inaequivalvis Sowerby, 1832, non Bruguidre, 1790 (Bernard, 1983a). Length: 55.4 mm (Draper, 1987).

85 Anadara (C.) esmeralda (Pilsbry & Olsson,

1941). Extend distribution south to Tumbes, Peru (Pena, 1971). Length: 59.3 mm (Draper, 1987). Extend distribution north to Nayarit, Mexico (Reguero & Garcia-Cubas, 1989).

87 Anadara (C.) perlabiata (Grant & Gale, 1931). Length: 46.6 mm (Draper, 1987).

88 Anadara (C.) reinharti (Lowe, 1935). Extend distribution south to Tumbes, Peru (Pena, 1971). Include Isla del Coco, Costa Rica, in distribution (Montoya, 1983). Subgenus changed from Esmerarca (Bernard, 1983a).

Subgenus Larkinia Reinhart, 1935

90 Anadara (L.) multicostata (Sowerby, 1833). Synonyms: Area brandtii Philippi, 1845; A. camuloensis Osmont, 1904 (Bernard, 1983a). Length: 131 mm (Wagner & Abbott, 1990).

Subgenus Potiarca Iredale, 1939

86 Anadara (P.) nux (Sowerby, 1833). Extend distribution south to Tumbes, Peru (Pena, 1971). Genus changed from Cunearca.

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Anadara (P.) chemnitzii (Philippi, 1851) is a similar species from the western Atlantic (Woodring, 1973). Synonyms: Area zorritensis Spieker, 1922; A. patheonensis Spieker, 1922. Include the Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a). Length: 23.9 mm (Draper, 1987).

Subgenus Rasia Gray, 1857

Anadara (R.) auricula Bernard, 1983. Synonym: Area auriculata Sowerby, 1833, non Lamarck, 1819. Ecuador only. Depth: 15 to 30 m (Bernard, 1983a).

91 Anadara (R.) emarginata (Sowerby, 1833).

Depth: 51 m (Cruz-P., 1977).

92 Anadara (R.) formosa (Sowerby, 1833). Extend distribution into the Gulf of California at Bahia de los Angeles, Baja California, Mexico (F. & L. Poorman, 1978). Extend distribution to Bahia San Carlos, Sonora, Mexico (F. & L. Poorman, 1988).

Subgenus Scapharca Gray, 1847

93 Anadara (S.) biangulata (Sowerby, 1833).

Depth: 5 to 80 m. Include the Islas GaHpagos, Ecuador, in distribution (Bernard, 1983a).

96 Anadara (S.) labiosa (Sowerby, 1833). Extend distribution north to near Santa Rosalia, Baja California Sur, Mexico (Draper, 1972).

Subgenus Tosarca Noda, 1965

95 Anadara (T.) hyphalopilema Campbell, 1962. Subgenus changed from Scapharca (Woodring, 1973). Length: 80 mm (Draper, 1987). Extend distribution south to Guayas, Ecuador (Skoglund, 1990b).

Genus Bathyarca Kobelt, 1891

97 Bathyarca corpulenta (Smith, 1885). Area orbiculata Dali, 1881, with synonyms Area ( Bathyarca ) corpulenta Smith, 1885; Area (Bathyarca) imitata Smith, 1885; Bathyarca abyssorum Verrill & Bush, 1898; Area strebeli Melvill & Standen, 1907; Area ( Bathyarca ) nucleator Dali, 1908; Area corpulenta var. pomphotyx Dali, 1908. Height: 28.8 mm. Shell and anatomy figured. Distribution: California

(34°N) to Chile (34°S); west and central Pacific; Atlantic Ocean including Antarctic sector; Celebes Sea (Knudsen, 1970). Delete as synonyms: Area imitata Smith, 1885; Bathyarca abyssorum Verrill & Bush, 1898; Area strebeli Melvill & Standen, 1907. Synonym: Bathyarca orbiculata Dali, of Knudsen, 1970, non Dali, 1881. Anatomy figured. Distribution: Pacific Ocean only (Oliver & Allen, 1980).

Genus Grandiarca Olsson, 1961 Raised to genus (Moore, 1983).

89 Grandiarca grandis (Broderip & Sowerby, 1829). Add synonym: Area larkinii Nelson, 1870 (Bernard, 1983a). Include Isla del Coco, Costa Rica, in distribution (Montoya, 1983). Length: 129.5 mm (Draper, 1987).

Genus Lunarca Gray, 1842

98 Lunarca brevifrons (Sowerby, 1833). Depth to 90 m (Cruz-P., 1977). Length: 30.5 mm (Draper, 1987).

Subfamily STRIARCINAE Genus Arcopsis von Koenen, 1885

99 Arcopsis solida Sowerby, 1833. Extend distribution south to Chimbote, Peru (Pena, 1971). Include the Islas GaHpagos, Ecuador, in distribution (Finet, 1985). Length: 19.1 mm (Draper, 1987).

Family NOETIIDAE Subfamily NOETIINAE

Genus Noetia Gray, 1857 Subgenus Noetia, s. s.

101 Noetia (N.) reversa (Sowerby, 1833). Include the Islas GaHpagos, Ecuador, in distribution (Bernard, 1983a). Length: 67 mm (Draper, 1987).

Subgenus Sheldonella Maury, 1917

103 Noetia (S.) delgada (Lowe, 1935). Length: 14.8 mm (Draper, 1987). Depth: 100 m (F. & L. Poorman, 1988).

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Superfamily LIMOPSACEA Family LIMOPSIDAE Genus Limopsis Sassi, 1827

104 Limopsis dalli Lamy, 1912. Synonym: Limopsis compressus Dali, 1896, non Nevill, 1874. Length: 40 mm. Distribution: off Baja California, Mexico, to the Gulf of Panama. Depth: 2071-4200 m. Regarded as a subspecies of L. pelagica Smith, 1885, by Knudsen (1970). Cosmopolitan, but absent from the Arctic Ocean. Delete Limopsis pelagica as a synonym (Oliver, 1981). Include Isla del Coco, Costa Rica, in distribution (Montoya, 1983). Distribution: 6°N-52°N (Bernard, 1983a).

106 Limopsis juarezi Dali, 1908. Distribution: 6°N (Bernard, 1983a).

109 Limopsis zonalis Dali, 1908. Cosmopolitan, but absent from the Arctic Ocean (Oliver, 1981).

Superfamily GLYCYMERIDACEA Raised by Bernard (1983a).

Family GLYCYMERIDIDAE Genus Glycymeris Da Costa, 1778 Subgenus Glycymeris, s. s.

110 Glycymeris (G.) gigantea (Reeve, 1843). Distribution: 25°N-31°N (Bernard, 1983a). Length: 110.2 mm (Draper, 1987). Depth: 60 m (F. & L. Poorman, 1988).

111 Glycymeris (G.) lintea Olsson, 1961. Add the Islas Galdpagos, Ecuador, to distribution (Keen & Coan, 1975).

112 Glycymeris (G.) maculata (Broderip, 1832). Extend distribution south to Pimentel, Peru (Pena, 1971). Depth: 5 to 45 m (Bernard, 1983a). Include the Islas Galdpagos, Ecuador, in distribution (Finet, 1985). Length: 101 mm (Draper, 1987).

— Glycymeris (G.) ovata (Broderip, 1832). Synonym: Pectunculus intermedius Broderip, 1832. Distribution 5°S-12°S, intertidal zone (Bernard, 1983a).

Subgenus Axinactis Morch 1861

113 Glycymeris (A.) delessertii (Reeve, 1843). Length: 52.7 mm (Draper, 1987).

Subgenus Axinola Hertlein & Grant, 1972

— Glycymeris (A.) guadalupensis Strong, 1938. Length: 10 mm. Distribution: Isla Guadalupe, west coast of Baja California, Mexico. Depth: 16 to 28 m (Strong, 1938). Distribution: 23°N-27°N (Bernard, 1983a).

Genus Tucetona Iredale, 1931 Raised from subgenus (Nicol & Jones, 1984). Subgenus Tucetona, s. s.

115 Tucetona (T.) canoa (Pilsbry & Lowe, 1941).

117 Tucetona (T.) strigilata (Sowerby, 1833).

Subgenus Bellaxinaea Nicol & Jones, 1984

116 Tucetona (B.) multicostata (Sowerby, 1833). Add synonym: Pectunculus parcipictus Reeve, 1843. Extend distribution to the Islas Galdpagos, Ecuador (Bernard, 1983a). Include Isla del Coco, Costa Rica, in distribution (Montoya, 1983). New subgenus (Nicol & Jones, 1984). Length: 46 mm (Draper, 1987).

Family PHILOBRYIDAE Genus Philobrya Cooper, 1867, ex Carpenter MS Genus author changed from Carpenter, 1872 (Coan, 1986).

118 Philobrya setosa (Carpenter, 1894). Syntype figured (Tevesz, 1977).

Superorder ISOFILIBRAN CHIA Iredale, 1939 Order MYTILOIDA Superfamily MYTILACEA Family MYTILIDAE Subfamily MYTILINAE Genus Mytilus Linneaus, 1758 Subgenus Mytilus, s. s.

— Mytilus (M.) califomianus Conrad, 1837. Distribution: Aleutian Islands, Alaska, to Isla Soccoro, Mexico (Abbott, 1974). Distribution: 19°N-60°N. Depth: intertidal zone to 50 m (Bernard, 1983a). Length: 251 mm (Draper, 1987). Distribution: Alaska to Puerto

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Rompiente, Baja California Sur: Isla Soccoro, Mexico (Coan, pers. comm., 1991).

— Mytilus (M.) edulis Linneaus, 1758. Synonyms: Mytilus trossulus Gould, 1850; M. glomeratus Gould, 1851; M. pedroanus Conrad, 1855; M. edulis latissimus Carpenter, 1857; M. edulis normalis Carpenter, 1857; M. septentrionalis Kiister & Clessin, 1889; M. edulis diegensis Coe, 1945; M. edulis kussakini Scarlato & Starobogatov, 1979. Distribution: 23°N-71°N; cosmopolitan in temperate and cold seas. Depth: intertidal zone to 5 m (Bernard, 1983a). Length: 133.2 mm (Draper, 1987). Delete. Does not occur on the Pacific coast of North America (McDonald & Koehn, 1988).

— Mytilus galloprovincialis Lamarck, 1819. Synonyms: Mytilus edulis diegensis Coe, 1945; Mytilus edulis of Soot-Ryen, 1955 non Linnaeus, 1758 (in part). A genetically distinct, introduced species. Distribution: Southern California to Cabo San Lucas, Baja California Sur, Mexico; Mediterranean Sea; Japan; Hong Kong; South Africa; Atlantic coast of Europe north of the British Isles. In bays, estuaries, and exposed coasts, attached to hard substrates from mid-tide level to several meters subtidally (McDonald & Koehn, 1988).

Genus Brachidontes Swainson, 1840

119 Brachidontes adamsianus (Dunker, 1857). As genus Aeidimytilus Olsson, 1961 (Hertlein & Grant, 1972). Hinge figured (Gemmell, Myers & Hertz, 1987).

— Brachidontes purpuratus (Lamarck, 1819). Synonyms: Mytilus ovalis Lamarck, 1819; ?M. exaratus Philippi, 1847; M. exilis Philippi, 1847; M. bifurcatus Dautzenberg, 1896, non Conrad, 1837. Distribution: 1°S-41°S, including the Islas Galdpagos, Ecuador. Intertidal zone (Bernard, 1983a). Delete. GaHpagos record probably in error (Coan, pers. comm., 1990).

122 Brachidontes semilaevis (Menke, 1849). Extend distribution south to Chimbote, Peru (as B. multiformis ) (Pena, 1971). Delete Brachidontes multiformis Carpenter, 1857, as a synonym; valid species (Abbott, 1974). B. multiformis as a synonym (Bernard, 1983a). Include the Islas Galdpagos, Ecuador, in distribution (Finet, 1985). Hinge figured (Gemmell, Myers & Hertz, 1987).

Genus Choromytilus Soot-Ryen, 1952

123 Choromytilus palliopunctatus (Carpenter, 1857). Synonym: Mytilus tenuiaratus Carpenter, 1857, ex Dunker MS, nom. nud. (Bernard, 1983a). Length: 192.5 mm (Draper, 1987).

Genus Mytella Soot-Ryen, 1955

125 Mytella guyanensis (Lamarck, 1819). Add synonyms: Mytilus bicolor Lamarck, 1819; Modiola semifusca Sowerby, 1825; M. brasiliensis mutabilis Carpenter, 1857 (Bernard, 1983a). Length: 75.1 mm (Draper, 1987).

126 Mytella speciosa (Reeve, 1857). Synonyms: Modiolus planata Tomlin, 1928, ex Carpenter MS; M. (M.) tumbezensis Pilsbry & Olsson, 1935 [128] (Bernard, 1983a).

127 Mytella strigata (Hanley, 1843). Add synonym: Mytilus sinuatus Reeve, 1857 (Bernard, 1983a).

128 Mytella tumbezensis (Pilsbry & Olsson, 1935). Bernard (1983a) made this a synonym of M. speciosa (Reeve, 1857) [126], but later decided it was a good species (Coan, pers. comm., 1990).

Genus Septifer R6cluz, 1848

— Septifer bifurcatus (Conrad, 1837). Length: 32 mm. Distribution: Crescent City, California, to Cabo San Lucas, Baja California Sur, Mexico (McLean, 1978). Synonym: Septifer bifurcatus obsoletus Dali, 1916, nom. nud. Depth: intertidal zone to 50 m (Bernard, 1983a).

129 Septifer zeteki Hertlein & Strong, 1946. Add synonym: Mytilus cumingianus Reeve, 1858. Include the Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a). Extend distribution to Bahia San Carlos area, Sonora, Mexico (F. & L. Poorman, 1988).

Subfamily CRENELLINAE

Genus Crenella Brown, 1927

131 Crenella divaricata (Orbigny, 1847). As Crenella inflata Carpenter, 1864, with synonym: Nuculocardia divaricata Orbigny, auctt., non Orbigny, 1842. Distribution: Huntington Beach, California, to the Gulf of California, Mexico, and south to Callao, Peru. Depth: 4 to 91 m (Hertlein & Grant, 1972). Synonym:

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Crenella inflata Carpenter, 1864, non Mytilus inflatus Muller, 1847. Include Isla del Coco, Costa Rica, in distribution (Bernard, 1983a).

Genus Gregariella Monterosato, 1884

132 Gregariella chenui (R6cluz, 1842). Synonyms: Mytilis chenuanus Orbigny, 1846; Mytilis fontaineaus Orbigny, 1846 (Hertlein & Grant, 1972). Extend distribution to near the head of the Gulf of California at San Felipe, Baja California, Mexico (Gemmell, Myers & Hertz,

1987) .

133 Gregariella coralliophaga (Gmelin, 1791). A widespread and variable species that has many synonyms. Distribution: Monterey, California, to Peru; North Carolina to Texas; West Indes; Bermuda; Brazil (Abbott, 1974). Synonym: Crenella coarctata (Carpenter, 1857) (Bernard, 1983a). Occurrence in the Islas GaHpagos doubtful (Finet, 1985). Extend distribution to Bahia San Carlos area, Sonora, Mexico (F. &

. L. Poorman, 1988).

134 Gregariella denticulata Dali, 1871. Extend distribution north to Bahia San Carlos, Sonora, Mexico. Depth: 35 m (F. & L. Poorman,

1988) .

Genus Lioberus Dali, 1898

135 Lioberus salvadoricus (Hertlein & Strong, 1946). Depth: 40 m (F. & L. Poorman, 1988). Length: 47.6 mm (Wagner & Abbott, 1989).

136 Lioberus splendidus (Dunker, 1857). Delete. Probably a west Atlantic species (Bernard, 1983a).

Genus Megacrenella Habe & Ito, 1965

137 Megacrenella Columbiana (Dali, 1897). Genus changed to Rhomboidella. Crenella megas Dali, 1902, not listed as a synonym. Distribution: Aleutian Islands, Alaska, to Mexico (Abbott, 1974). As genus Megacrenella. Synonym: Crenella tamurai Habe, 1955. Distribution: 17°N-60°N (Bernard, 1983a).

Subfamily LITHOPHAGINAE Genus Lithophaga Roding, 1798 Subgenus Diberus Dali, 1898

— Lithophaga (D.) canalifera (Hanley, 1843). Distribution: 1°S-4°N, intertidal zone (Bernard, 1983a). Lectotype designated. Length: 39.5 mm (Kleemann, 1983).

138 Lithophaga (D.) plumula (Hanley, 1844). Add

synonyms: Lithodomus subula Reeve, 1857; L. plumula kelseyi Hertlein & Strong, 1946 (Keen & Coan, 1975). Lectotype designated. Add synonyms: Lithophaga plumula var. gracilior Carpenter, 1857; L. plumula var. tumidior Carpenter, 1857; ?(Diberus) mucronata (Philippi, 1846) (Kleemann, 1983). Distribution: 4°S-40°N, including L’ile

Clipperton (France) and the Islas Galdpagos, Ecuador (Befnard, 1983a). Holotype of synonym, Lithophaga (D.) divaricate Iredale, 1939, figured. Include the Philippines and Australian distribution (Kleemann, 1984). Occurrence in the Islas Galdpagos doubtful (Finet, 1985). Length: 72.5 mm (Draper, 1987).

Subgenus Labis Dali, 1916

139 Lithophaga (L.) attenuata (Deshayes, 1836). Bernard (1983a) incorrectly uses as a synonym of Labis peruviana (Orbigny, 1846), which is found south of the Panamic Province (12°S-18°S). Valid species. Synonym: Lithophaga (L.) attenuata rogersi Berry, 1957 [140] (Kleeman, 1983). Holotype of L. (L.) attenuata rogersi figured (Hertz, 1984). Length: 110.6 mm (Draper, 1987).

140 Lithophaga (L.) attenuata rogersi Berry, 1957. Delete. Becomes a synonym of Lithophaga (L.) attenuata (Deshayes, 1836) [139] (Kleemann, 1983).

Subgenus Myoforceps Fischer, 1886

143 Lithophaga (M.) aristata (Dillwyn, 1817). Add synonyms: Lithophaga calyculata (Carpenter, 1857) [145]; L. forficata (Ravenel, 1861); L. ropan Deshayes, 1836; L. bipenniferus (Guppy, 1877) (Abbott, 1974). Include Isla del Coco, Costa Rica, in distribution (Montoya, 1983). Synonyms: L. aristata var. gracilior Carpenter, 1857; L. aristata var. tumidior Carpenter, 1857. Lithophaga incurva Gabb, 1861, used as a synonym by Bernard (1983a), is a fossil Botula

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(Kleemann, 1983). Length: 32.8 mm (Draper, 1987).

Subgenus Stumpiella Soot-Ryen, 1955

145 Lithophaga (S.) calyculata (Carpenter, 1857). Regarded as a synonym of Myoforceps aristata (Dillwyn, 1817) [143] by Abbott (1974). Valid species. Include L’tle Clipperton (France) in distribution (Bernard, 1983a). Occurrence in the Islas Galdpagos doubtful (Finet, 1985). Length: 23.1 mm (Draper, 1987).

Genus Adula H. & A. Adams, 1857

147 Adula soleniformis (Orbigny, 1846). Synonym: Adula soleniformis panamensis Olsson, 1961 [148], Distribution: 5°S-8°N (Bernard, 1983a).

148 Adula soleniformis panamensis Olsson, 1961. Delete. Becomes a synonym of A. soleniformis (Orbigny, 1846) [147] (Bernard, 1983a).

Genus Botula Morch, 1853 Moved from subfamily Modiolinae (Wilson & Tait, 1984).

155 Botula fusca (Gmelin, 1791). Synonym: Botula cylista Berry, 1959. Distribution 1°S-23°N, including the Atlantic (Bernard, 1983a). Holotype of B. cylista figured (Hertz, 1984). Add synonyms: Modiola cinnamomea Lamarck, 1819; Modiola silicula Lamarck, 1819; Modiole favanni Potiez & Michaud, 1844; Lithodomus projectans Tate, 1892; Botula hawaiensis Dali, Bartsch & Rehder, 1938; Botula laysana Dali, Bartsch & Rehder, 1938; Botulopa silicula infra Iredale, 1939. Anatomy and holotypes of several of the synonyms figured. Length: 29 mm. The single species in the genus is widespread in tropical and subtropical Indian, Pacific and western Atlantic oceans. Bores in dead corals, coral rocks and other calcareous rocks. Depth: intertidal zone to 532 m (Wilson & Tait, 1984).

Genus Leiosolenus Carpenter, 1856 Raised to genus (Wilson & Tait, 1984).

141 Leiosolenus laevigata (Quoy & Gaimard, 1835). Synonym: Lithophaga hancocki Soot-Ryen, 1955. Found only in living coral. Distribution: Islas Galdpagos; Indonesia; Australia; Maidive

Islands; Red Sea (Kleemann, 1980). Include L’ile Clipperton (France), in distribution (Bernard, 1983a). Occurrence in the Islas Galapagos doubtful (Finet, 1985).

142 Leiosoleus spatiosa (Carpenter, 1857). Length: 65 mm (Draper, 1987).

Subfamily MODIOLINAE Genus Modiolus Lamarck, 1799 Subgenus Modiolus, s.s.

151 Modiolus (M.) americanus (Leach, 1815). Synonyms: Modiolus tulipa Lamarck, 1819; M. pseudotulipus Olsson, 1961. Distribution: Gulf of California, Mexico, to Peru; South Carolina to Brazil; Bermuda (Abbott, 1974). Depth: intertidal zone to 20 m (Bernard, 1983a).

149 Modiolus (M.) capax (Conrad, 1937). Add synonym: Mytilus splendens Dunker, 1857. Include the Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a). Length: 188 mm (Draper, 1987).

— Modiolus (M.) neglect us Soot-Ryen, 1955. Distribution: 23°N-37°N. Depth: 15 to 110 m (Bernard, 1983a).

152 Modiolus (M.) rectus (Conrad, 1837).

Distribution: Vancouver Island, British

Columbia, Canada, to the Gulf of California, Mexico (McLean, 1978). Extend distribution north to Bahia San Luis Gonzaga, Baja California, Mexico (Mulliner, 1984). Synonym: Modiolus pacificus Olsson, 1961. Distribution 5°S-35°N, including the Islas Galdpagos, Ecuador (Bernard, 1983a). Occurrence in the Islas Galdpagos, Ecuador, doubtful (Finet, 1985). Length: 213 mm (Draper, 1987).

Genus Amygdalum Megerle von Muhlfeld, 1811

154 Amygdalum pallidulum (Dali, 1916). Distribution: 28°N-37°N (Bernard, 1983a). Length: 22.6 mm (Draper, 1987).

Genus Benthomodiolus Dell, 1987

— Benthomodiolus abyssicola (Knudsen, 1970). Length: 17.2 mm. Anatomy figured. Distribution: Gulf of Panama. Depth: 3270- 3670 m (Knudsen, 1970). Holotype figured (Kenk & Wilson, 1985). Genus changed from Modiolus. Foot muscle mass figured (Dell, 1987).

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Genus Dacrydium Torell, 1859 Subgenus Dacrydium , s. s.

— Dacrydium (D.) panamettsis Knudsen, 1970. Length: 5 mm. Distribution: Acapulco, Guerrero, Mexico, to the Gulf of Panama. Depth: 3270 to 3670 m (Knudsen, 1970).

Subgenus Quendreda Iredale, 1936

— Dacrydium (Q.) elegantulum Soot-Ryen, 1955. Length: 2.4 mm. Redondo Beach, California, to the Islas Galdpagos, Ecuador, in 25 to 200 m (Soot-Ryen, 1955). Distribution: 28°N-34°N (Bernard, 1983a). Finet (1985) states that occurrence in the Islas GaMpagos is doubtful, but the type locality is Bahia de Gardner, Islas GaHpagos.

Subfamily BATHYMODIOLINAE Kenk & Wilson, 1985

Genus Bathymodiolus Kenk & Wilson, 1985

— Bathymodiolus thermophilus Kenk & Wilson, 1985. Length: 149.5 mm. GaHpagos Rift thermal vents. Depth: 2495 m (Kenk & Wilson, 1985).

Superorder PTERIOMORPIIIA Beurlen, 1944 Order PTERIOIDA Newell, 1965 Suborder PINNINA Waller, 1978 Superfamily PINNACEA Family PINNIDAE Genus Pinna Linneaus, 1758

156 Pinna rugosa Sowerby, 1835. Add L’ile Clipperton, (France), and south to Salinas, Ecuador, to distribution (Salvat & Salvat, 1972). Add Islas GaHpagos, Ecuador, to distribution (Finet, 1987). Extend distribution north to near the head of the Gulf of California at San Felipe, Baja California, Mexico (Gemmell, Myers & Hertz, 1987).

Genus Atrina Gray, 1842

157 Atrina maura (Sowerby, 1835). Add synonym: ?Pinna cumingii Hanley, 1858 (Keen & Coan, 1975). Length: 422 mm (Draper, 1987).

158 Atrina oldroydii Dali, 1901. Length: 231 mm (Draper, 1987).

160 Atrina tuberculosa (Sowerby, 1835). Considered a synonym of Atrina maura (Sowerby, 1835) by some authors, notably Winckworth and Fischer-Piette (Keen & Coan, 1975). Bernard (1983a) treats A. tuberculosa as a valid species with a distribution from 5°S to 28°N, including the Islas GaMpagos, Ecuador.

Genus Streptopinna von Martens, 1880

— Streptopinna saccata (Linnaeus, 1758). Synonym: Pinna nuttalli Conrad, 1837. Height: 235 m. Distribution: throughout the Indo- West Pacific. Depth: 1-2 m (Kay, 1979). Extend distribution to Isla del Coco, Costa Rica. Also found from East Africa to eastern Polynesia (Shasky, 1987).

Suborder PTERIINA Newell, 1965 Superfamily PTERIACEA Family PTERIIDAE Genus Pteria Scopoli, 1777

161 Pteria sterna (Gould, 1851). Depth to 90 m (Cruz-P., 1977). Add synonyms: Avicula eximia Reeve, 1857; A. libella Reeve, 1857; Pteria rositae Hertlein, 1928. Delete Pteria viridizona Dali, 1916, as a synonym. Distribution: 5°S-30°N (Bernard, 1983a). Include the Islas Galdpagos, Ecuador, in distribution (Finet, 1985). Length: 152 mm (Wagner & Abbott, 1990).

Genus Pinctada Roding, 1798

162 Pinctada mazatlanica (Hanley, 1856). Add L’ile Clipperton, (France), and the Islas Galdpagos, Ecuador, to distribution (Bernard, 1983a). Length: 180 mm (Draper, 1987).

Family ISOGNOMONIDAE Genus Isognomon Lightfoot, 1786, ex Solander MS Subgenus Melina Retzius, 1788 The subgenus Isognomon, s. s., is malleiform and occurs only in the Indo-Pacific. There has been confusion about the type species of Isognomon (Coan, pers. comm., 1990).

163 Isognomon (M.) janus Carpenter, 1857. Hinge and exterior of valve figured. Extend

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distribution north to San Diego, California (Myers & D’Attilio, 1979). Length: 63.8 mm (Draper, 1987).

— Isognomon (M.) incisus (Conrad, 1837). Extend distribution to Isla del Coco, Costa Rica (Shasky, 1986a). Figured (Shasky, 1986b).

164 Isognomon (M.) recognitus (Mabille, 1895). Reported from Isla del Coco, Costa Rica, as Isognomon ” quadrangularis " by Emerson (1978). As I. quadrants (Anton, 1837). Distribution: 2°S-26°N, including the Islas GaHpagos, Ecuador (Bernard, 1983a). Synonym: Isognomon quadrants (Anton, 1837), non Sowerby, 1835 (Coan, pers. comm., 1991).

Family MALLEIDAE Genus Malleus Lamarck, 1799 Subgenus Malvufundus Gregorio, 1885

165 Malleus (M.) regulus (Forskal, 1775). Synonyms: Malleus rufipunctams Reeve, 1858; Vulsella nuttalli Conrad, 1837; Avicula candeana Orbigny, 1846; Malleus tigrinus Reeve, 1858; M. panamensis Morch, 1861; M. obvolums Folin, 1867. Cosmopolitan in warm water 9°N-23°N (Bernard, 1983a). Include Isla del Coco, Costa Rica, in distribution (Shasky, 1986a). Include the Islas Galdpagos, Ecuador, in distribution (Finet, 1985). Figured (Shasky, 1986b).

Order OSTREOIDA F6russac, 1822 Suborder OSTREINA F6russac, 1822 Superfamily OSTREACEA Classification follows Harry (1985). Complete synonymies for species were not given by Harry. Morphological and anatomical keys to the oysters of Mexico (Castillo Rodriguez & Garcia-Cubas, 1987).

Family GRYPHAEIDAE Vyalov, 1936 Subfamily PYCNODONTEINAE Stenzel, 1959

Tribe HYOTISSINI Harry, 1985 Genus Hyotissa Stenzel, 1971

171 Hyotissa hyotis Linnaeus, 1758. Synonym: Ostrea ftsheri (Dali, 1914) and numerous junior synonyms in the west Indo-Pacific populations. Distribution: Panamic Province; west Pacific (Harry, 1985). Distribution: Gulf of California,

Mexico, to Ecuador and the Islas GaMpagos; east Africa and Madagascar to southern Japan (Moore, 1987). Length: 211.6 mm (Wagner & Abbott, 1988).

Genus Parahyotissa Harry, 1985 Subgenus Pliohyotissa Harry, 1985

— Parahyotissa (P.) quercinus (Sowerby, 1871). Figured (Harry 1985). Original description and figures from Sowerby, good photos. Distribution: San Felipe, Baja California, south on the west side of the Gulf of California to Cabo San Lucas, Baja California Sur; Puerto Vallarta, Jalisco; Manzanillo, Colima, on the mainland of Mexico (Gemmell, Hertz & Myers, 1985).

Family OSTREIDAE Subfamily LOPHINAE Vyalov, 1936 Tribe LOPHINI Vyalov, 1936 (Harry, 1985) Genus Dendostrea Swainson, 1835

— Dendostrea folium (Linneaus, 1758). Synonyms: Mytilus frons Linneaus, 1758; M. cristagalli Linneaus, 1758; Ostra serra Dali, 1914, non Lamarck, 1899; O. dalli Lamy, 1930; O. (Pretostrea) bresia Iredale, 1939. Circumtropic, including Bahia de Panama (Bernard 1983a). Extend distribution to Isla del Coco, Costa Rica, and Cabo Pulmo, Baja California Sur, Mexico. Figured (Shasky, 1986b).

— Dendostrea mexicanum (Sowerby, 1871).

Distribution: coast of Baja California, Mexico. Found in shallow subtidal zones, on gorgonians, and stony corals (Harry, 1985).

Tribe MYRAKEENINI Harry, 1985 Genus Myrakeena Harry, 1985

167 Myrakeena angelica (Rochebrune, 1895).

Extend distribution south to Pimentel, Peru (Pena, 1971). Figured. Distribution limited to the Gulf of California, Mexico. Low tide zone and slightly deeper (Harry, 1985). Extend distribution north to San Felipe, Baja California, Mexico (Gemmell, Myers & Hertz, 1987).

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Subfamily OSTREINAE Rafinesque, 1815

Tribe OSTREINI Rafinesque, 1815 (Harry, 1985)

Genus Ostrea Linnaeus, 1758

175 Ostrea tubulifera Dali, 1914. Delete. Probably not a valid Panamic species; type may be from another province (Bernard, 1983a).

Genus Ostreola Monterosato, 1884

169 Ostreola conchaphila (Carpenter, 1857). As Ostrea lurida Carpenter, 1864. Synonyms: Ostrea lurida laticaudata Carpenter, 1864, ex Nuttall MS; O. 1. rufoides Carpenter, 1864; O. 1. expansa Carpenter, 1864, non Sowerby, 1819 (Bernard, 1983a). Synonym: Ostrea lurida Carpenter, 1864. Distribution: Alaska to

Panama. Shallow subtidal zone to a few meters depth (Harry, 1985). Depth: 100 m (F. & L. Poorman, 1988).

Tribe UNDULOSTREINI Harry, 1985

Genus Undulostrea Harry, 1985

173 Undulostrea megodon (Hanley, 1846). Add synonyms: Ostrea gallus Valenciennes, 1846; O. cerrosensis Gabb, 1866 (Keen & Coan, 1975). Distribution: Laguna San Ignacio, west coast of Baja California Sur, Mexico; Gulf of California to Peru. Low intertidal to several meters depth: attached to shells (Harry, 1985). Length: 100.6 mm (Draper, 1987).

Tribe STRIOSTREINI Harry, 1985 Genus Saccostrea Dolfuss & Dautzenberg, 1920

174 Saccostrea palmula (Carpenter, 1857). Include Isla Cocos, Costa Rica, in distribution (Bakus, 1975). Distribution: Laguna San Ignacio, west coast of Baja California Sur, Mexico, to Panama and the Islas GaMpagos, Ecuador. Intertidal, attached to mangroves or rocks (Harry, 1985). Include Isla del Coco, Costa Rica, in distribution (Montoya, 1983).

Genus Striostrea Vyalov, 1936 Subgenus Striostrea, s. s.

172 Striostrea (S.) prismatica (Gray, 1825). Synonym: Ostrea puelchana Orbigny, auctt., non

Orbigny, 1841; O. irridescens Hanley, 1854; Ostrea virginica califomica Marcou, 1858 (Bernard, 1983a). Subtidal zone, attached to non-calcareous rock (Harry, 1985). Include Isla del Coco, Costa Rica, in distribution (Montoya, 1983).

Tribe CRASSOSTRE1NI Torigoe, 1981 (Harry, 1985)

Genus Crassostrea Sacco, 1897

168 Crassostrea columbiensis (Hanley, 1846). Synonym: Ostrea tulipa Sowerby, 1871 (Bernard, 1983a). Synonym: Ostrea corteziensis Hertlein, 1951 [170]. Distribution: Gulf of California to Ecuador (Harry, 1985).

170 Crassostrea corteziensis (Hertlein, 1951). Delete. Becomes synonym of Crassostrea columbiensis (Hanley, 1846) [168] (Harry, 1985).

Superfamily DIMYACEA P. Fischer, 1886 Family DIMYIDAE Genus Dimya Rouault, 1850

205 Dimya califomiana Berry, 1936. Redescription. Hinge figured (Myers & D’Attilio, 1980).

Superfamily PLICATUIACEA Watson, 1930 Family PLICATULIDAE Genus Plicatula Lamarck, 1801

206 Plicatula anomioides Keen, 1958. Extend

distribution south to La Libertad, El Salvador (Hernandez, 1979).

207 Plicatula inezana Durham, 1950. Extend

distribution north to near Santa Rosalia, Baja California Sur, Mexico (Draper, 1972). Extend distribution north to Bahia de los Angeles, Baja California, Mexico (F. & L. Poorman, 1978). Depth: 45 to 140 m (Bernard, 1983a). Length: 52.1 mm (Draper, 1987). Extend distribution across the Gulf of California to Bahia San Carlos, Sonora, Mexico (F. & L. Poorman, 1988). Extend distribution south to Bahia Cocos, Costa Rica (Skoglund, 1990a).

208 Plicatula penicillata Carpenter, 1857. Extend distribution north to near Santa Rosalia, Baja California Sur, Mexico (Draper, 1972). Intertidal zone. Include the Islas GaHpagos, Ecuador, in distribution (Bernard, 1983a).

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Extend distribution north to Bahia de los Angeles, Baja California, Mexico (F. & L. Poorman, 1978). Extend distribution across the Gulf of California to Bahia San Carlos, Sonora, Mexico. Depth: 20 to 80 m (F. & L. Poorman, 1988).

209 Plicatula spondylopsis Rochebrune, 1895. Include the Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a).

Suborder PECTINNA Waller, 1978 Superfamily PECTINACEA Family PECTINIDAE Genus Argopecten Monterosato, 1889 As a subgenus of Chlamys (Hertlein & Grant, 1972). As a genus (Abbott, 1974; Bernard, 1983a).

182 Argopecten circularis (Sowerby, 1835). Add synonyms: Pecten pomatia Valenciennes, 1846; P. ventricosus aequisulcatus Carpenter, 1864; P. (Plogioctenium) subventricosus Dali, 1898; P. compactus Dali, 1898; P. newsomi Arnold, 1903. Include the Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a). Length: 106 mm (Wagner & Abbott, 1990).

Genus Chlamys Roding, 1798 Subgenus Chlamys, s. s.

— Chlamys (C.) incantata Hertlein, 1972. Height: 45 mm. Islas Galdpagos, Ecuador. Depth: 200 m (Hertlein, 1972).

183 Chlamys (C.) lowei (Hertlein, 1935). Height: 22.9 mm (Draper, 1987).

Genus Crassadoma Bernard, 1986

— Crassadoma gigantea (Gray, 1825). Synonyms: Hinnita poulsoni Conrad, 1834; Pecten ( Chlamys ) multirugosus Gale, 1928. Distribution: Aleutian Islands to Bahia Magdalena, Baja California Sur, Mexico. Depth: high tide zone to 55 m (Hertlein & Grant, 1972). As Hinnites multirugosus (Gale, 1928) with H. giganteus Gray, 1825, as a synonym (Abbott, 1974). Pecten ( Chlamys ) multirugosus Gale, 1928, is a junior synonym of Hinnites giganteus (Gray, 1825) (Roth & Coan, 1978). Synonyms: H. crassa Conrad, 1857; P. (C.) multirugosus crassiplicatus Gale, 1928;

Hinnites benedicti Adegoke, 1969. Distribution: 25°N-60°N. Depth: intertidal zone to 80 m (Bernard, 1983a). Genus changed from Hinnites by Bernard (1986). Length: 233 mm (Wagner & Abbott, 1990).

Genus Cyclopecten Verrill, 1897 Subgenus Cyclopecten, s. 1.

— Cyclopecten bistriatus (Dali, 1916). Distribution: 23°N-46°N. Depth: 1100 to 1160 m (Bernard, 1983a).

187 Cyclopecten exquisitus Grau, 1959. Include Isla del Coco, Costa Rica, in distribution (Montoya, 1983).

— Cyclopecten graui Knudsen, 1970. Length: 18 mm. Known only from Bahia de Panama. Depth: 3270 to 3670 m (Knudsen, 1970).

188 Cyclopecten incongruus (Dali, 1916). Delete. Known only from the holotype from Isla Cedros (29°N), which is north of the Panamic Province (Bernard, 1983a).

190 Cyclopecten pemomus (Hertlein, 1935). Include the Islas Galdpagos, Ecuador, in distribution (Grau, 1959). Depth: 2 to 1720 m (Hertlein & Grant, 1972).

191 Cyclopecten polyleptus (Dali, 1908). Genus changed from Delectopecten. Distribution: 0-52°S. Depth: 550 to 650 m (Bernard, 1983a). Extend distribution north to Bahia San Carlos, Sonora, Mexico. Depth to 35 m (F. & L. Poorman, 1988).

Genus Delectopecten Stewart, 1930

191 Delectopecten polyleptus (Dali, 1908). Delete here. Genus changed. See Cyclopecten.

192 Delectopecten randolphi (Dali, 1897). Synonyms: Pecten whiteavesi Orcutt, 1915, nom. nud.; P. (Pseudamussium) randolphi tillamookensis Arnold, 1906; P. (Pseudamussium) arces Dali, 1913 (Bernard, 1983a).

193 Delectopecten vitreus (Gmelin, 1791). As Cyclopecten. Delete. Distribution (10°S-52°S) is not within the Panamic Province (Bernard, 1983a).

Genus Flabellipecten Sacco, 1897 Raised from subgenus (Woodring, 1982; Moore, 1984).

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176 Flabellipecten berryi (Bernard, 1983). Primary homonym of Pecten berryi Stephenson, 1923 (Coan, pers. comm., 1991). Synonym: Pecten lunaris Berry, 1963, non Romer, 1839. Preoccupied (Bernard 1983a). Holotype of P. lunaris figured (Hertz, 1984). Extend distribution south to Nicaragua (Montoya, L6pez & Ldpez, 1987). Depth: 100 m (F. & L. Poorman, 1988).

— Flabellipecten diegensis (Dali, 1898). Diameter: 100 mm. Depth: 30 m. Distribution: Bodega Bay, California, to Cabo San Lucas, Baja California Sur, Mexico (McLean, 1978). Distribution: 23°N-38°N. Depth: 10 to 375 m (Bernard, 1983a).

177 Flabellipecten sericeus Hinds, 1845. Include Isla del Coco, Costa Rica, in distribution (Montoya, 1983). Length: 108 mm (Draper, 1987). Depth: 183 m (Skoglund, 1988).

Genus Hyalopecten Verrill, 1897 Raised from subgenus (Bernard, 1983a).

— Hyalopecten neoceanicus (Dali, 1908). Height: 12 mm. Holotype figured. Islas Galdpagos, Ecuador (Grau, 1959). Distribution: Bahia de Panama to the Islas Galdpagos, Ecuador. Depth: 3270 to 3670 m (Knudsen, 1970). Genus changed from Pecten (Pseudamussium) (Bernard, 1983a).

Genus Leptopecten Verrill, 1897 Subgenus Leptopecten, s. s.

195 Leptopecten (L.) biolleyi (Hertlein & Strong, 1946). Regarded as a subspecies of Leptopecten velero (Hertlein, 1935) [199] (Cruz- P., 1977) and as a full species (Bernard, 1983a).

196 Leptopecten (L.) camerella (Berry, 1968). Holotype figured (Hertz, 1984).

197 Leptopecten (L.) euterpes (Berry, 1957). Holotype figured (Hertz, 1984).

— Leptopecten (L.) latiaurata (Conrad, 1837). Range: Point Reyes, California, to Cabo San Lucas, Baja California Sur, Mexico. Depth: subtidal to 229 m (Hertlein & Grant, 1972). Genus changed from Chlamys. Synonyms: Pecten latiauritus, nom. van., auctt.\ P. monotimeris Conrad, 1837; P. tunica Philippi, 1844; P. latiauritus fucicolus Dali, 1898; P. ( Chlamys ) latiauritus fragilis Arnold, 1903, non

P. fragilis DeFrance, 1825; P. ( Chlamys ) latiauritus bellilamellatus Arnold, 1903; P. ( Chlamys ) latiaurtius cerritensis Arnold, 1906; P. ( Chlamys ) latiauritus delosi Arnold, 1906. Range 23°N-38°N (Bernard, 1983a).

198 Leptopecten (L.) palmeri (Dali, 1897). Depth: 100 m (F. & L. Poorman, 1988). Length: 71 mm (Wagner & Abbott, 1990).

199 Leptopecten (L.) velero (Hertlein & Strong, 1946). Extend distribution across the Gulf of California to Bahia San Carlos, Sonora, Mexico. Depth: 100 m (F. & L. Poorman, 1988).

Genus Nodipecten Dali, 1898 Raised from subgenus (Woodring, 1982; Moore, 1984).

201 Nodipecten magnificus (Sowerby, 1835). Restricted to the Islas Galdpagos, Ecuador; not found on the mainland (Keen & Coan, 1975). Length: 206 mm (Wagner & Abbott, 1990).

202 Nodipecten subnodosus (Sowerby, 1835). Include Isla del Coco, Costa Rica, in distribution (Montoya, 1983). Add synonym: Pecten (Lyropecten) pitteri Dali, 1912. Depth: intertidal zone to 110 m (Bernard, 1983a). Include the Islas Galdpagos, Ecuador, in distribution (Finet, 1985). Distribution con¬ firmed to Bahia San Carlos, Sonora, Mexico (F. & L. Poorman, 1988). Extend distribution north to Isla Cedros, Mexico (McPeak, 1988). Length: 224 mm (Wagner & Abbott, 1990).

Genus Oppenheimopecten Von Teppner, 1922 Raised from subgenus (Moore, 1984).

179 Oppenheimopecten hancocki (Grau, 1959).

Extend distribution south to the Islas Galdpagos, Ecuador (Finet, 1985).

180 Oppenheimopecten perulus (Olsson, 1961).

Extend distribution north to Nicaragua (Montoya, L6pez & L6pez, 1987). Length: 36.6 mm (Wagner & Abbott, 1990).

181 Oppenheimopecten vogdesi (Arnold, 1906).

Distribution: 1°S-28°N (Bernard, 1983a). Length: 111 mm (Wagner & Abbott, 1990).

Genus Pacipecten Olsson, 1961 Raised from subgenus (Moore, 1984).

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200 Pacipecten tumbezensis (Orbigny, 1846). Length: 45 mm (Draper, 1987).

Genus Pseudamussium Morch, 1853 Subgenus Peplum Bucquoy, Dautzenberg & Dollfus, 1888

204 Pseudamussium (P.) fasciculatum (Hinds, 1845). Extend distribution north to Bahia San Carlos, Sonora, Mexico (F. & L. Poorman, 1988).

Family PROPEAMUSSIIDAE Abbott, 1954 Used by Waller (1971)

Genus Propeamussium Gregorio, 1884

203 Propeamussium meridioale (Smith, 1885). Synonyom: Amusium (P.) malpelonium Dali, 1908. Length: 17 mm. Distribution: Gulf of Panama; Pacific, Antarctic, and Indian Oceans. Depth: 1900-4820 m (Knudsen, 1970).

Family SPONDYLIDAE Genus Spondylus Linnaeus, 1758

210 Spondylus calcifer Carpenter, 1857. Include Isla del Coco, Costa Rica, in distribution (Bakus, 1975). Depth: 2 to 55 m (Bernard, 1983a). Length: 267 mm (Wagner & Abbott, 1990).

— Spondylus linguaefelis Sowerby, 1847. Synonym: Spondylus gloriosus Dali, Bartsch & Rehder, 1938; S. mimus Dali, Bartsch & Rehder, 1938; S. kuaiensis Dali, Bartsch & Rehder, 1938 (Kay, 1979). Lamprell (1987) gives the distribution as the Solomon Islands, Hawaii, Philippine Islands and Australia, but fails to cite the L’ile Clipperton distribution.

— Spondylus nicobaricus Schreibers, 1793. Extend distribution to Isla del Coco, Costa Rica (Shasky, 1983). Synonyms: S. hystrix Roding, 1798; 5. radians Lamarck, 1819; S. aculeatus Broderip, 1833; S. ciliatus Sowerby, 1847; 5. coccineus Sowerby & Reeve, 1847; S. serratissimus Dali, Bartsch & Rehder, 1938; S. lindea Iredale, 1939; S. percea Iredale, 1939;. Distribution: Australia; Comoros; Madagascar; Hawaii; Mauritius; Philippines; Solomon Islands (Lamprell, 1987).

211 Spondylus princeps Broderip, 1833, non Schreibers, 1793. Preoccupied (Coan, pers. comm., 1991) Include L’ile Clipperton (France), in distribution (Perrin, 1977). Depth:

21 to 41 m (Shasky, 1980). Add synonyms: Spondylus unicolor Sowerby, 1847 [212]; 5. limbatus Sowerby, 1847. Distribution: 5°S-28°N. Depth: 2 to 40 m (Bernard, 1983a). Synonym: S. victoriae Sowerby of Durham, 1950, non Sowerby, 1859 (Moore, 1987). Length: 202 mm (Draper, 1987).

— Spondylus tenebrosus Reeve, 1856. Synonym: Spondylus hawaiensis Dali, Bartsch & Rehder, 1938. Recorded from L’ile Clipperton, (France) (Emerson, 1978). Distribution: 10°N (L’ile Clipperton); western Pacific, intertidal zone (Bernard, 1983a).

212 Spondylus princeps unicolor Sowerby, 1847. Delete. Becomes a synonym of 5. princeps Broderip, 1833 [211] (Bernard, 1983a).

213 Spondylus ursipes Berry, 1959. Abbott (1974) regarded S. ursipes as a synonym of S. calcifer Carpenter, 1857. A valid species. Distribution: 27°N-31°N, 10 to 25 m (Bernard, 1983a). Holotype figured (Hertz, 1984). Height: 152.5 mm (Wagner & Abbott, 1990).

— Spondylus victoriae (Sowerby, 1859). Distribution: 26°N-30°N. Depth: 10 to 40 m (Bernard, 1983a). Delete. Known only from northwestern Australia and the Northern Territory (Lamprell, 1987).

Order LIMOIDA Waller, 1978 Superfamily LIMACEA Family LIMIDAE Genus Lima Bruguidre, 1797 Subgenus Lima, s. s.

214 Lima (L.) tetrica Gould, 1851. Include the Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a). Length: 74.3 mm (Draper, 1987). Depth: intertidal zone to 35 m (F. & L. Poorman, 1988).

Genus Acesta H. & A. Adams, 1858 Raised from subgenus (Bernard, 1983a; Moore, 1987).

Subgenus Acesta, s. s.

216 Acesta (A.) diomedae (Dali, 1908). Genus changed from Lima (Bernard, 1983a).

215 Acesta (A.) patagonica (Dali, 1902). Synonym: Lima agassizii Dali, 1902. Genus changed from Lima. Distribution: 14°S-53°S except for a single valve from Bahia de Panama which

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Bernard (1983a) states is probably a misplaced specimen.

Genus Limaria Link, 1807 Raised from subgenus. Synonyms:

Submantellum Olsson & Harbison, 1953; Promantellum Iredale, 1939 (Vokes, 1973). Subgenus Limaria, s. s.

217 Limaria (L.) hemphilli (Hertlein & Strong, 1946). Extend distribution south to Tumbes, Peru (Pena, 1971). Shell figured (Gemmell, Myers & Hertz, 1981). Length: 37 mm (Draper, 1987).

220 Limaria (L.) orbignyi (Lamy, 1930). Shell figured (Gemmell, Myers & Hertz, 1981). Include the Islas GaHpagos, Ecuador, in distribution (Bernard, 1983a). Length: 32.2 mm (Draper, 1987).

219 Limaria (L.) pacifica (Orbigny, 1846). Include the Islas GaHpagos, Ecuador, in distribution (Bernard, 1983a). Length: 32.5 mm (Draper, 1987).

Genus Limatula Wood, 1839 Raised from subgenus (Abbott, 1974).

218 Limatula similaris (Dali, 1908). Distribution: 9°S-28°N (Bernard, 1983a). Extend distribution across Gulf of California to Bahia San Carlos, Sonora, Mexico (F. & L. Poorman, 1988).

Superfamily ANOMIACEA Family ANOMIIDAE Genus Anomia Linneaus, 1758 Subgenus Anomia, s. s.

221 Anomia (A.) adamas Gray, 1850. Extend distribution south to Pimentel, Peru (Pena, 1971). Depth: intertidal zone to 35 m (F. & L. Poorman, 1988).

222 Anomia (A.) fidenas Gray, 1850. Distribution: 9°N-25°N (Bernard, 1983a).

223 Anomia (A.) peruviana Orbigny, 1846. Add synonyms: ?Anomia laqueata Reeve, 1859; A. limatula Dali, 1878. Add L’ile Clipperton (France), and the Islas Galdpagos, Ecuador, to distribution. Depth: intertidal zone to 130 m (Bernard, 1983a). Length: 84.4 mm (Draper, 1987).

Genus Pododesmus Philippi, 1837 Subgenus Pododesmus, s. s.

226 Pododesmus (P.) foliatus (Broderip, 1834). Synonym: Pododesmus puntarensis Soot-Ryen, 1952. Distribution: 4°S-23°N (Bernard, 1983a).

Subgenus Monia Gray, 1850

227 Pododesmus (M.) macroschisma (Deshayes, 1839). Add synonym: ?Placunanomia alope Gray, 1849 (Keen & Coan, 1975). Widely distributed on both sides of the northern Pacific. Shell and anatomy figured (Yonge, 1977). Distribution: 28°N-58°N (Bernard, 1983a). Synonyms: Pododesmus (M.) cepio (Gray, 1850); ? Pododesmus newcombei Arnold & Clark, 1923. Delete ? Placunanomia alope Gray, 1849, as a synonym. Distribution: Alaska to Baja California Sur, Mexico; Japan (Moore, 1987). Length: 128.4 mm (Draper, 1987). Extend distribution into the Gulf of California to Bahia San Carlos, Sonora, Mexico. On pilings in estero (F. & L. Poorman, 1988). Delete distribution to Bahia San Carlos, Sonora, Mexico (Poorman, pers. comm., 1990).

Subgenus Tedinia Gray, 1853

228 Pododesmus (T.) pemoides (Gray, 1853). Extend distribution south to Oaxaca, Mexico (Abbott, 1974).

Family PLACUNIDAE Yonge, 1977 Genus Placunanomia Broderip, 1832

224 Placunanomia cumingii Broderip, 1832. Shell and anatomy figured (Yonge, 1977). Length: 89.6 mm (Draper, 1987). Extend distribution north to Bahia San Carlos, Sonora, Mexico (F. & L. Poorman, 1988).

Subclass HETERODONTA Order VENEROIDA Superfamily CRASSATELLACEA Family CRASSATELLIDAE Follows Coan (1979, 1984a).

Subfamily CRASSATELLINAE F£russac, 1822 Genus Eucrassatella Iredale, 1924 Synonyms: Hybolophus Stewart, 1930;

Eucrassinella Cruz-P., 1980 (Coan, 1984a).

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229 Eucrassatella antillarum (Reeve, 1842). Lectotype figured. Add synonyms: Crassatella loevis A. Adams, 1854; C. adelinae Tryon, 1872; C. digueti Lamy, 1917; Crassatellites laronus Jordan, 1932; Eucrassinella manabiensis Cruz- P., 1980 [in part]. Length: 105.2 mm. Distribution: Cabo San Lucas, Baja California Sur, Mexico, throughout the Gulf of California, to Playas, Guayas Province, Ecuador; Venezuela. Depth: 5 to 206 m (Coan, 1984a). Length: 105.2 mm (Draper, 1987).

230 Eucrassatella gibbosa Sowerby, 1832. Lectotype figured. Add synonyms: Eucrassatella (Hybolophus) gibbosa tucilla Olsson, 1932; Eucrassinella manabiensis and E. aequitorialis Cruz-P., 1980. Length: 87.4 mm. Distribution: Bahia San Juanico, west coast of Baja California Sur, Mexico, throughout the Gulf of California, to Paita, Piura Province, Peru. Depth: 5 to 110 m (Coan, 1984a). Length: 87.4 mm (Draper, 1987).

Subfamily SCAMBULINAE Chavan, 1952 Genus Crassinella Guppy, 1874.

Synonym: Pseuderiphyla Fischer, 1887 (Coan, 1979).

231 Crassinella adamsi Olsson, 1961. Depth: 90 m (Cruz-P., 1977). Holotype figured. Depth: 9 to 100 m (Coan, 1979). Crassinella aduncata Weisbord, 1964, is a cognate species in the Caribbean (Coan, 1984a).

— Crassinella coxa Olsson, 1964. Holotype figured. Length: 2.3 mm. Distribution: west coast of Baja California Sur; Isla Coronados, Gulf of California; Bahia San Ignacio, Sinaloa, Mexico, south to Colombia. Depth: 36 to 160 m (Coan, 1979).

232 Crassinella ecuadoriana Olsson, 1961. Depth: 51 m (Cruz-P., 1977). Holotype figured. Length: 4.4 mm. Add La Paz, Baja California Sur, Mexico, to distribution. Depth: low intertidal zone to 55 m (Coan, 1979).

233 Crassinella mexicana Pilsbry & Lowe, 1932. Delete. Becomes synonym of Crassinella pacifica (C. B. Adams, 1852) [234] (Coan, 1979).

— Crassinella nuculiformis Berry, 1940. Holotype figured. Synonym: Crassinella dementia Pilsbry & Olsson, 1941. Length: 5.3 mm. Distribution: Isla Cedros, west coast of Baja California, to

and throughout the Gulf of California, south to Ecuador. Depth: low intertidal zone to 62 m (Coan, 1979). Crassinella maldonadoensis (Pilsbry, 1897) is a cognate species from Uruguay (Coan, 1984a).

234 Crassinella pacifica (C.B. Adams, 1852). Depth to 90 m (Cruz-P., 1977). Holotype figured. Synonyms: Crassinella quentinensis Manger, 1934; C. branneri Arnold, 1903; C. mexicana Pilsbry & Lowe, 1932 [233]. Length: 10 mm. Distribution: Orange County, California, along the outer coast of Baja California, to and throughout the Gulf of California, Mexico, and south to Tumbes Province, Peru. Depth: low intertidal zone to 158 m (Coan, 1979).

— Crassinella skoglundae Coan, 1979. Holotype figured. Length: 5.9 mm. Distribution: Bahia de las Banderas, Nayarit, to Acapulco, Guerrero, Mexico. Depth: 11 to 28 m (Coan, 1979).

235 Crassinella varians (Carpenter, 1857). Length: 3.3 mm. Extend distribution north to Cabo Tepoca, Sonora, Mexico (Skoglund, 1974). Depth: 90 m (Cruz-P., 1977). Lectotype figured. Synonyms: Crassinella goldbaumi Jordan, 1936; C. haylocki Pilsbry & Olsson, 1941. Distribution: Bahia San Juanico, Baja California Sur, to and throughout the Gulf of California, Mexico, and south to the Gulf of Guayaquil, Ecuador. Depth: low intertidal zone to 113 m (Coan, 1979). Include the Islas Galdpagos, Ecuador, in distribution (Finet, 1985).

Family CARDINIIDAE Genus Tellidorella Berry, 1963

236 Tellidorella cristulata Berry, 1963. Extend distribution south to Esmeraldas, Ecuador (Cruz-P., 1977). Holotype figured (Hertz, 1984). Depth: 110 m (F. & L. Poorman, 1988).

Superfamily CARDITACEA Family CARDITIDAE Subfamily CARDITINAE Bernard, 1983a Genus Cardita Brugui6re, 1792

— Cardita aviculina (Lamarck, 1819). Synonyms: Cardita hawaiensis Dali, Bartsch & Rehder, 1938; C. cruda Dali, Bartsch & Rehder, 1938;

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C. laysana Dali, Bartsch & Rehder, 1938. Height: 10 mm. Distributed throughout the Indo-Pacific (Kay, 1979). Extend distribution to Isla del Coco, Costa Rica (Shasky, 1985). Figured (Shasky, 1986b).

Subfamily CARDITESINAE Chavan, 1969 Genus Cardites Link, 1807 Raised from subgenus (Abbott, 1974).

239 Cardites crassicostata (Sowerby, 1825). Include the Islas GaHpagos, Ecuador, in distribution (Bernard, 1983a). Length: 75.5 mm (Wagner & Abbott, 1990).

240 Cardites grayi (Dali, 1903). Include the Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a). Length: 47.3 mm (Wagner & Abbott, 1990).

241 Cardites laticostata (Sowerby, 1833). Add synonyms: Cardita turgida Valenciennes, 1856: C. reeveana Clessin, 1888. Include the Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a). Length: 51.5 mm (Wagner & Abbott, 1990).

Genus Strophocardia Olsson, 1961 Raised from subgenus (Bernard, 1983a).

244 Strophocardia megastropha (Gray, 1825). Length: 57.5 mm (Wagner & Abbott, 1990).

Subfamily CARDITAMERINAE Chavan, 1969 Genus Carditamera Conrad, 1838 Raised from subgenus (Abbott, 1974).

237 Carditamera affinis Sowerby, 1833. Extend distribution south to Mdncora, Peru (Olsson, 1961). Changed from genus Cardita (Abbott, 1974). As genus Cardita (Byssomera). Add synonyms: Cardita volucris Reeve, 1843; ?Cardita incrassatus Carpenter, 1857. Distribution: 4°S-29°N, including the Islas Galdpagos, Ecuador (Bernard, 1983a). Length: 101.2 mm (Draper, 1987).

238 Carditamera radiata (Sowerby, 1833).

Genus Cyclocardia Conrad, 1867.

Raised from subgenus (Hertlein & Grant, 1972).

242 Cyclocardia beebei (Hertlein, 1958). Extend

distribution south to Pimentel, Peru (as C. s. beebei ) (Pena, 1971). Not a subspecies of Cardita spurca Sowerby, 1833 (Bernard, 1983a). Extend distribution north to Bahia San Carlos, Sonora, Mexico. Depth: 100m (F. & L. Poorman, 1988).

Genus Pleuromeris Conrad, 1867 Raised from subgenus (Abbott, 1974).

243 Pleuromeris guanica Olsson, 1961.

Superfamily CORBICULACEA Family CORBICULIDAE Genus Polymesoda Rafinesque, 1828 Subgenus Polymesoda, s. s.

— Polymesoda (P.) acuta (Prime, 1861).

Distribution: 1°N, intertidal zone (Bernard, 1983a).

247 Polymesoda (P.) mexicana (Broderip & Sowerby, 1829). Add synonym: Cyrena insignis Deshayes, 1855 (Bernard, 1983a).

Subgenus Egeta H. & A. Adams, 1858

249 Polymesoda (E.) altilis (Gould, 1853).

Distribution: 12°N-23°N (Bernard, 1983a).

250 Polymesoda (E.) anomala (Deshayes, 1855). Add synonyms: Cyrena ( Anomala ) cumingii Deshayes, 1855; C. cardiformis Sowerby, 1876. Delete as synonym: C. peruviana Deshayes, 1855 (Bernard, 1983a).

251 Polymesoda (E.) inflata (Philippi, 1851).

Correct dates on synonyms Cyrena maritima C.B. Adams, 1852, non Orbigny, 1842, and Cyrena panamensis Prime, 1861 (Keen & Coan, 1975). Add synonyms: Cyrena peruviana

Deshayes, 1854; C. bullata Sowerby, 1878. Delete as synonym: C. cardiformis Sowerby, 1878 (Bernard, 1983a).

Subgenus Neocyrena Crosse & Fischer, 1894

253 Polymesoda (N.) fontaineii (Orbigny, 1844).

Distribution: 1°S-18°S (Bernard, 1983a).

255 Polymesoda (N.) nicaraguana (Prime, 1869). Distribution: 8°N-12°N (Bernard, 1983a).

— Polymesoda (N.) triangulata (Busch, 1849). Distribution: 23°N, intertidal (Bernard, 1983a).

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Superfamily DREISSENACEA Family DREISSENIDAE Genus Mytilopsis Conrad, 1858

257 Mytilopsis adamsi Morrison, 1946. Bernard (1983a) makes Mytilopsis adamsi Morrison, 1946, and M. zeteki Hertlein & Hanna, 1949 [259], synonyms of Mytilopsis leucophaeta (Conrad, 1858) and includes the Caribbean and North Atlantic in distribution. Marelli & Gray (1983) redescribe and figure M. leucophaeta and confine it to the brackish waters of the Atlantic.

— Mytilopsis sallei (Rdcluz, 1849). Extend distribution to the Gatun and Miraflores Locks, Panama Canal (Rosewater, 1976). Synonyms: Dreissena domingensis R6cluz, 1852; Tichogonia pfeifferi Dunker, 1853; T. rossmaessleri Dunker, 1853; T. riisei Dunker, 1853; Dreissenia gundlachii Dunker, 1855; D. moerchiana Dunker, 1855; Mytilopsis allyneana Hertlein & Hanna, 1949. Redescribed and figured. Distribution: brackish waters in southern Florida; Yucatan, Mexico, to Venezuela; West Indies. Introduced to Fiji and eastern India (Marelli & Gray, 1983).

Superfamily GLOSSACEA Family VESICOMYIDAE Genus Vesicomya Dali, 1886 Subgenus Vesicomya, s. s.

261 Vesicomya (V) ovalis (Dali, 1896). Distribution: Alaska to Panama (Abbott, 1974).

— Vesicomya (V.) stearnsii (Dali, 1895). Distribution: La Jolla, California, to the Gulf of California, Mexico (Abbott, 1974). Delete. Distribution: 45°N-48°N, is not within the Panamic Province (Bernard, 1983a).

Subgenus Callogonia Dali, 1889

— Vesicomya (C.) suavis Dali, 1913. As subgenus Archivesica. Length: 34 mm. West of Isla Tibur6n, Gulf of California, Mexico. Depth: 1345 m (Dali, 1913). Subgenus changed from Archivesica (Bernard, 1983a).

Genus Calyptogena Dali, 1891 Subgenus Archivesica Dali, 1908

262 Calyptogena (A.) gigas (Dali, 1908). Distribution: Point Sur, California, to the Gulf of California, Mexico (Abbott, 1974). Genus changed from Vesicomya. Distribution: 27°N-52°N (Bernard, 1983a).

Subgenus Ectenagena Woodring, 1938

— Calyptogena (E.) magnifica Boss & Turner, 1980. Length: 263 mm. Galdpagos Rift thermal vents. Also known from the East Pacific Rise vents. Depth: 2600 m (Boss & Turner, 1980).

Superfamily ARCTICACEA Family KELLIELLIDAE Fischer, 1887 Genus Kelliella M. Sars, 1870

— Kelliella galatheae Knudsen, 1970. Length: 5.2 mm. Distribution: off southern Baja California, Mexico. Depth: 2950 to 3570 m (Knudsen, 1970). Distribution: 6N-48N (Bernard, 1983a).

Superfamily LUCINACEA Family LUCINIDAE Subfamily LUCININAE Genus Lucina Brugui6re, 1797 Subgenus Callucina Dali, 1901

268 Lucina (C.) lampra (Dali, 1901). As subgenus Cavilinga (Bretsky, 1976). Drawing of figured type (Gemmell, Myers & Hertz, 1987). Length: 19.2 mm (Draper, 1987). As subgenus Callucina (Moore, 1988).

269 Lucina (C.) lingualis Carpenter, 1864. As subgenus Cavilinga (Bretsky, 1976). As subgenus Callucina (Moore, 1988).

270 Lucina (C.) prolongata Carpenter, 1857. Add Gulf of California to distribution (Keen & Coan, 1975). Extend distribution south to Esmeraldas, Ecuador. Depth to 90 m (Cruz- P., 1977). Changed from subgenus Cavilinga (Bernard, 1983a).

Subgenus Lucinisca Dali, 1901 As a genus (McLean, 1978), and as a subgenus (Bernard, 1983a).

272 Lucina (L.) centrifuga (Dali, 1901). Extend distribution south to Paita, Piura Province, Peru (as L. liana) (Pena, 1971). Depth:

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intertidal zone to 100 m. Distribution: 4°S-29°N, including the Islas GaHpagos, Ecuador (Bernard, 1983a). Length: 24 mm (Draper, 1987).

273 Lucina (L.) fenestrata Hinds, 1845. Synonyms: Lucina ochracea Reeve, 1850; L. (Lucinisca) fausta Pilsbry & Olsson, 1941 (Bernard, 1983a). Length: 49.3 mm (Draper, 1987).

— Lucina (L.) nuttalli Conrad, 1837. Distribution: Santa Barbara, California, to San Felipe, Baja California; Punta Penasco, Sonora, south to Manzanillo, Colima, Mexico. Depth: littoral zone to 461 m (Hertlein & Grant, 1972). Include Islas Tres Marias, Mexico, in distribution (McLean, 1978). Distribution: 22°N-37°N. Depth: 10 to 75 m (Bernard, 1983a). Length: 31.3 mm (Draper, 1987).

Genus Here Gabb, 1866 Used as subgenus of Linga by Abbott (1974), and as a genus by Bernard (1983a) and Moore (1988).

Subgenus Here, s. s.

271 Here (H.) excavata (Carpenter, 1857). Synonym: Lucina richthofeni Gabb, 1866. Distribution: San Pedro, California, to Mazatldn, Sinaloa, Mexico (Hertlein & Grant, 1972). Good drawings (Gemmell, Myers & Hertz, 1987).

Genus Parvilucina Dali, 1901 As a genus (Abbott, 1974), a subgenus (Bernard, 1983a), and a genus (Moore, 1988). Subgenus Parvilucina s. s.

274 Parvilucina (P.) approximata (Dali, 1901). Extend distribution north to Monterey, California (Abbott, 1974).

275 Parvilucina (P.) mazatlanica (Carpenter, 1857). Distribution: Gulf of California, Mexico, to Ecuador (Abbott, 1974).

Genus Linga de Gregorio, 1884 Subgenus Pleurolucina Dali, 1901

276 Linga (P.) cancellaris (Philippi, 1846). Extend distribution into the Gulf of California near Santa Rosalia, Baja California Sur, Mexico

(Draper, 1972). Radiolucina as a subgenus (Britton, 1972). As Linga (Bellucina) by Abbott (1974). Distribution: 28°N-31°N (Bernard, 1983a). Extend distribution into the Gulf of California at Bahia San Carlos, Sonora, Mexico. Depth to 100 m (F. & L. Poorman, 1988). As Linga ( Pleurolucina ) by Moore (1988).

277 Linga (P.) leucocymoides (Lowe, 1935). Genus changed from Lucina (Abbott, 1974). Length: 17.5 mm (Draper, 1987). Extend distribution to Bahia San Carlos, Sonora, Mexico (F. & L. Poorman, 1988).

278 Lingp (P) undatoides (Hertlein & Strong, 1945). Genus changed from Lucina (Abbott, 1974). Extend distribution to Bahia de los Angeles, Baja California, Mexico. Depth: 15 to 18 m (Hertz, 1977).

Genus Codakia Morch, 1860 Subgenus Codakia, s. s.

279 Codakia (C.) distinguenda (Tryon, 1872). As subgenus Ctena by Abbott (1974). As Codakia, s. s. Include L’ile Clipperton (France), in distribution (Bernard, 1983a). Extend distribution south to the Islas Galdpagos, Ecuador (Finet, 1985). Include Isla Gorgona, Colombia, in distribution (Von Prahl, 1986). Occurs at San Felipe, Baja California, Mexico (Gemmell, Myers & Hertz, 1987). Length: 142 mm (Draper, 1987).

— Codakia (C.) punctata (Linnaeus, 1758). Synonym: Codakia thaanumi Pilsbry, 1918. Distribution: 1°S-9°N, including L’tle Clipperton (France) and the Islas Galdpagos, Ecuador; Indo-Pacific. Depth: intertidal to 5 m (Bernard, 1983a).

Subgenus Epilucina Dali, 1901

— Codakia (Epilucina) califomica Conrad, 1837. As Lucina (Epilucina). Synonym: Lucina artemidis Carpenter, 1857. Distribution: 17°N-42°N. Depth: 30 to 75 m (Bernard, 1983a). Genus changed from Lucina. Distribution: northern California to Baja California Sur, Mexico (Moore, 1988).

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Genus Ctena Morch, 1860 Subgenus Ctena, s. s.

Ctena as a subgenus of Codakia by Bretsky (1976), and as a genus (Moore, 1988).

280 Ctena (C.) chiquita (Dali, 1901). Extend

distribution into the Gulf of California near Santa Rosalia, Baja California Sur, Mexico (Draper, 1972). Distribution confined: 28°N-31°N (Bernard, 1983a). Extend

distribution across the Gulf of California to Bahia San Carlos area, Sonora, Mexico (F. & L. Poorman, 1988).

281 Ctena (C. ) clarionensis Hertlein & Strong, 1946. Extend distribution into the Gulf of California to the Bahia San Carlos area, Sonora, Mexico. Depth to 35 m (F. & L. Poorman, 1988).

282 Ctena (C.) clippertonensis Bartsch & Rehder, 1939. Extend distribution north to near Santa Rosalia, Baja California Sur, Mexico (Draper, 1972).

283 Ctena (C.) galapagana (Dali, 1901). Extend distribution south to Pimentel, Peru (Pena, 1971). Height: 19 mm (Keen & Coan, 1975). Extend distribution north to Bahia San Carlos, Sonora, Mexico (F. & L. Poorman, 1988). Delete distribution to Bahia San Carlos (Poorman, pers. comm., 1990)

284 Ctena (C.) mexicana (Dali, 1901). Include the Islas GaMpagos, Ecuador, in distribution (Bernard, 1983a). Good drawings (Gemmell, Myers & Hertz, 1987). Length: 25.5 mm (Draper, 1987).

Subfamily DIVARICELLINAE Genus Divalinga Chavan, 1951 Subgenus Divalinga, s. s.

285 Divalinga (D.) ebumea (Reeve, 1850). Genus changed to Divaricella (Bretsky, 1976). As Divaricella. Hinge figured (Gemmell, Myers & Hertz, 1981). Include the Islas GaMpagos, Ecuador, in distribution (Finet, 1985). Length: 27.5 mm (Draper, 1987). Extend distribution into the Gulf of California at Bahia San Carlos, Sonora, Mexico. Depth to 60 m (F. & L. Poorman, 1988). As Divalinga (D.) by Moore (1988).

Subgenus Viaderella Chavan, 1951

286 Divalinga (V) perparvula (Dali, 1901). Extend distribution north to Laguna de Agiabampo, Sonora/Sinaloa, Mexico (Garcia-Cubas & Reguero, 1987).

Subfamily MILTHINAE Genus Miltha H. & A. Adams, 1857

287 Miltha xantusi (Dali, 1905). Synonym:

Phacoides joannis Dali, 1905. Distribution: Guaymas, Sonora, to MazatMn, Sinaloa; La Paz to Cabo San Lucas, Baja California Sur, Mexico. Depth: 33 to 101 m (Hertlein & Grant, 1972). Synonym: P. ( Miltha )

sanctaecrucis Arnold, 1910 (Bernard, 1983a).

Genus Pegophysema Stewart, 1930 Subgenus Pegophysema, s. s.

288 Pegophysema (P.) edentuloides (Verrill, 1870).

Length: 92 mm (Goldsmith, 1971). Genus changed to Anodontia (Bretsky, 1976). As Pegophysema. Distribution: 28°N-30°N

(Bernard, 1983a). As Pegophysema (P.) (Moore, 1988).

Subfamily MYRTAEINAE Genus Lucinoma Dali, 1901 As a subgenus (Bretsky, 1976), and a genus (Bernard, 1983a).

— Lucinoma aequizonata (Stearns, 1891). Distribution: Santa Barbara Islands, California, to Chile. Depth: 505 m (Abbott, 1974). Delete. Distribution restricted to 34°N-60°N (Bernard, 1983a).

289 Lucinoma annulata Reeve, 1850. Distribution: Alaska to Bahia Santa Inez, Baja California Sur, Mexico (Hertlein & Grant, 1972). Moved to genus Miltha, subfamily Milthinae (Bretsky, 1976). As subfamily Myrtaeinae, genus Lucinoma. Synonyms: Lucinoma densilineata Dali, 1916; L. annulata densilirata Dali, 1919; Lucina spectabilis Yokoyama, 1920; Woodia concentrica Yokoyama, 1920. Distribution: 33°N-60°N (Bernard, 1983a). Dredged Bahia San Carlos, Sonora, Mexico (F. & L. Poorman, 1988). Dredged at Isla Smith, Bahia de los Angeles, Baja California, Mexico. Depth: 183 m (Skoglund, 1988). Moved from subfamily Milthinae (Moore, 1988).

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Family UNGULINIDAE Genus Diplodonta Bronn, 1831 Subgenus Diplodonta, s. s.

291 Diplodonta (D.) inezensis (Hertlein & Strong, 1947). Extend distribution north to San Felipe, Baja California, Mexico (Gemmell, Myers & Hertz, 1987). Extend distribution across Gulf of California to Bahia San Carlos, Sonora, Mexico (F. & L. Poorman, 1982). Length: 24.4 mm (Draper, 1987).

— Diplodonta (D.) orbella (Gould, 1851). Distribution: Monterey, California, to Punta Penasco, Sonora, Mexico. Depth: Low tide zone to 110 m (Hertlein & Grant, 1972). Distribution: Pribilof Islands, Alaska, to the Gulf of California, Mexico (McLean, 1978). Holotype figured. Distribution: Monterey, California, throughout the Gulf of California, Mexico, to Panama (Hertz, Myers & Gemmell, 1982). Synonym: Sphaerella tumida Carpenter, 1864. Distribution: 8°N-60°N. Depth: intertidal zone to 65 m (Bernard, 1983a). Length: 35.1 mm (Draper, 1987).

292 Diplodonta (D.) subquadrata (Carpenter, 1856). Synonym: Diplodonta subquadrata baltrana Hertlein, 1972 (Bernard, 1983a). Syntype figured. Camera lucida drawings of hinge. Synonym: Diplodonta suprema Olsson, 1961 [293]. Holotype figured. Distribution: Isla San Benito on the west coast of Baja California, throughout the Gulf of California, to Ecuador including the Islas GaHpagos (Hertz, Myers & Gemmell, 1982).

293 Diplodonta (D.) suprema Olsson, 1961. Delete. A synonym of Diplodonta subquadrata (Carpenter, 1856) [292] (Hertz, Myers & Gemmell, 1982).

Genus Felaniella Dali, 1899 Subgenus Zemysia Finlay, 1927

294 Felaniella (Z.) obliqua (Philippi, 1845). Synonym: Lucina calculus Reeve, 1850. Distribution: 10°N-42°S (Bernard, 1983a). Extend distribution north to Laguna de Topolobampo, Sinaloa, Mexico (Garcia-Cubas & Reguero, 1987).

295 Felaniella (Z.) cornea (Reeve, 1850). Bernard (1983a) made Felaniella sericata (Reeve, 1850)

a synonym of Felaniella (Z.) parilis (Conrad, 1983). Valve interior figured (Gemmell, Myers & Hertz, 1987). Moore (1988) restricted F. parilis to fossil material and made F. sericata a synonym of F. cornea.

Genus Phlyctiderma Dali, 1899 Subgenus Phlyctiderma, s. s.

296 Phlyctiderma (P.) discrepans (Carpenter, 1857). Hinge dentition figured (Gemmell, Myers & Hertz, 1987). Depth: 35 m (F. & L. Poorman, 1988).

Subgenus Pegmapex Berry, 1960

299 Phlyctiderma (P.) caelatum (Reeve, 1850). Include the Islas GaHpagos, Ecuador, in distribution (Finet, 1985).

300 Phlyctiderma (P.) phoebe (Berry, 1960). Holotype figured (Hertz, 1984). Extend distribution north to Bahia San Carlos, Sonora, Mexico. Depth: 35 m (F. & L. Poorman, 1988).

Family THYASIRIDAE Subfamily THYASIRINAE Dali, 1900 (Bernard, 1983a)

Genus Conchocele Gabb, 1866

302 Conchocele excavata (Dali, 1901). Add synonym: Thyasira tricarinata Dali, 1916. Genus changed from Thyasira. Distribution: 23°N-45°N. Depth: 800 to 2050 m. Shallow water (18 to 90 m) records from the Gulf of California, Mexico, are not for this species (Bernard, 1983a).

Subfamily AXINOPSIDINAE Bernard, 1983a Genus Adontorhina Berry, 1947

— Adontorhina cyclia Berry, 1947. Distribution: Bahia de los Angeles, Gulf of California, Mexico; from the Bering Sea, Alaska, to Isla Guadalupe, Baja California, Mexico. Depth: 11.6 to 1886 m. Figured (Scott, 1986).

Superfamily GALEOMMATACEA Family GALEOMMATIDAE Genus Bellascintilla Coney, 1990

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— Bellascintilla parmaleeana Coney, 1990. Length: 4.5 mm. Shell and hinge figured. Distribution: Rancho El Tule, Baja California Sur, Mexico, to Isla Salango, Manabi Province, Ecuador (Coney, 1990).

Genus Cymatioa Berry, 1964

303 Cymatioa dubia (Deshayes, 1856). Distribution: 1°S-3°S. Depth: intertidal zone to 10 m (Bernard, 1983a).

304 Cymatioa electilis (Berry, 1963). Hinge figured (Gemmell, Myers & Hertz, 1981). Distribution: 1°S-28°N (Bernard, 1983a). Holotype figured (Hertz, 1984). Found attached to the burrow of the shrimp Axius (Baldwin, 1990). Correct shrimp name to Axiopsis cf A. serratifrons (A. Milne Edwards, 1873) (Hertz [ed.], 1990).

Genus Galeommella Habe, 1958

306 Galeommella peruviana (Olsson, 1961). Include the Islas GaHpagos, Ecuador, in distribution (Bernard, 1983a).

Genus Tryphomyax Olsson, 1961

307 Tryphomyax lepidoformis Olsson, 1961. Regarded as a synonym of Tryphomyax mexicanus (Berry, 1959) [308] by Bernard (1983a). Valid species. Shell and hinge figured. Single valve reported from Bahia la Cholla, Sonora, Mexico, may be a labeling error, as all others of this species are from Panama (Coney, 1990).

308 Tryphomyax mexicanus (Berry, 1959). Synonym: Tryphomyax lepidoformis Olsson, 1961 [307]. Distribution: 9°N-31°N (Bernard, 1983a). Holotype figured (Hertz, 1984). Delete T. lepidoformis Olsson as a synonym. Shell and hinge figured. Distribution: throughout the Gulf of California as far south as Punta Arena, Baja California Sur, Mexico (Coney, 1990).

Family ERYCINIDAE Subfamily ERYCINIINAE Deshayes, 1850 (Bernard, 1983a)

Genus Amerycina Chavan, 1959

309 Amerycina colpoica (Dali, 1913). Extend

distribution to the Islas Galdpagos, Ecuador (Bernard, 1983a).

310 Amerycina cultrata Keen, 1971. Extend

distribution north to Guaymas, Sonora, Mexico. Depth: 91 m (Keen & Coan, 1975).

Subfamily LASAEINAE Gray, 1842 (Bernard, 1983a)

Genus Lasaea Brown, 1827, ex Leach MS

— Lasaea cistula Keen, 1938. Distribution: British Columbia to Peru (Abbott, 1974). Synonym: Erycina catalinae Dali, 1916, nom. nud. Delete. Distribution (28°N-40°N), is north of the Panamic Province (Bernard, 1983a).

311 Lasaea subviridis Dali, 1899. Lasaea adansoni (Gmelin, 1871) used with L. subviridis as a subspecies. Distribution: Monterey California to La Paz, Baja California Sur, Mexico; southeastern Florida; Bermuda; Brazil; Europe (Abbott, 1974). L. subviridis as a species. Synonym: Lasaea rubra subviridis Stearns, 1894, ex Carpenter MS. Distribution: 23°N-55°N (Bernard, 1983a). Delete Lasaea rubra subviridis Stearns, 1894, nom. nud., as a synonym . Syntypes designated for Lasaea subviridis Dali, 1899 (Coan, 1987). Cannot be distinguished from Lasaea cistula Keen, 1938, by morphology alone (O Foighil & Eernisse, 1988).

Genus Pseudopythina Fischer, 1878

— Pseudopythina compressa (Dali, 1899). Length: 18 mm. Distribution: Alaska to Acapulco, Guerrero, Mexico, as genus Neaeromya, family Leptonidae. Depth: 7 to 51 m (Abbott, 1974). Family and genus changed. Depth: 258 m (Rosewater, 1984).

— Pseudopythina muris Rosewater, 1984. Off northwestern Peru. Depth: 90 to 133 m. Living in the respiratory cavity of the sea mouse Aphrodita japonica (Rosewater, 1984).

341 Pseudopythina steamsii (Dali, 1899). Genus changed from Sportella to Neaeromya, family Leptonidae (Abbott, 1974). Changed to family Lasaeidae, genus Pseudopythina by Rosewater (1984).

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Family KELLIIDAE Subfamily KELLIINAE Forbes & Hanley, 1989 (Bernard, 1983a) Genus Kellia Turton, 1822

— Kellia laperoussii (Deshayes, 1839). Length: 25 mm. Depth: intertidal zone to sublittoral depths. Distribution: Bering Sea, Alaska, to the Gulf of California, Mexico (McLean, 1978). Delete. Becomes a synonym of Kellia suborbicularis (Montagu, 1803) [312] (Bernard, 1983a).

312 Kellia suborbicularis (Montagu, 1803). Synonyms: Tellimya lactea Brown, 1827; T. tenuis Brown, 1827; ?Bomia inflata Philippi, 1836; Chironia laperoussii Deshayes, 1839; Bomia luticola Valenciennes, 1846; Kellia rotundata Carpenter, 1864. Distribution: 4°S-60°N, circumboreal; Mediterranean. Depth: intertidal zone to 20 m (Bernard, 1983a). Include the Islas Galdpagos, Ecuador, in distribution (Finet, 1985). Depth: 60 m (F. & L. Poorman, 1988).

Genus Aligena Lea, 1846

324 Aligena cokeri Dali, 1909. Attaches to tubes of annelid worm Mesochaetopterus alipes Monroe, 1933 (Rosewater, 1976).

325 Aligena nucea Dali, 1913. Hinge figured. Extend distribution south to Panama (Gemmell, Myers & Hertz, 1987).

334 Aligena obliqua (Harry, 1969). Genus changed from Orobitella. Valve interior figured. Extend distribution north to San Felipe, Baja California, and Puerto Penasco, Sonora, Mexico (Gemmell, Myers & Hertz, 1987).

Subfamily BORNIINAE Bernard, 1983a Genus Bomia Philippi, 1836

313 Bomia chiclaya Olsson, 1961. Extend distribution north to San Felipe, Baja California, Mexico (Hertz, 1976). Hinge dentition figured (Gemmell, Myers & Hertz, 1987).

315 ?Bomia obtusa (Carpenter, 1857). Delete here. Holotype is a juvenile Mysella of unknown species (Bernard, 1975). See Mysella.

316 Bomia papyracea (Deshayes, 1856). As genus Rhamphidonta (Bernard, 1975). As Bomia.

Depth: 10 to 50 m (Bernard, 1983a).

Genus Solecardia Conrad, 1849

322 Solecardia ebumea Conrad, 1849. Hinge figured (Gemmell, Myers & Hertz, 1981). Synonym: Scintilla cumingii Deshayes, 1856 (Bernard, 1983a). Length: 27.1 mm (Draper, 1987). Depth: 60 m (F. & L. Poorman, 1988).

323 ?Solecardia obliqua (Sowerby, 1862). Delete. Nom. dub. (Bernard, 1983a).

Family LEPTONIDAE Genus Lepton Turton, 1822

320 Lepton ellipticum (Carpenter, 1857). Question on generic placement removed (Bernard, 1983a). Extend distribution north to Laguna de Agiabampo, Sonora/Sinaloa, Mexico (Garcia-Cubas & Reguero, 1987).

321 Lepton ledifomie Olsson, 1961. Extend distribution north to San Felipe, Baja California, Mexico. Figured (Gemmell, Myers & Hertz, 1987).

Family MONTACUTIDAE Subfamily MYSELLINAE Bernard, 1983a Genus Mysella Angas, 1877

326 ?Mysella Clementina (Carpenter, 1857). Delete. Nom. dub. (Bernard, 1983a). Synonym of Thracia curta Conrad, 1837 [760] (Coan, 1990a).

328 ?Mysella dionaea (Carpenter, 1857). Delete. Nom. dub. The single known valve is damaged and appears to be without teeth (Scott, 1987).

— Mysella grippi (Dali, 1912). Distribution: Oregon to San Diego, California; Gulf of California, Mexico. Depth: 12 to 60 m (Scott, 1987). Distribution confirmed to San Felipe, Baja California, Mexico. Hinge figured (Gemmell, Myers & Hertz, 1987).

330 ?Mysella umbonata (Carpenter, 1857). Delete. Nom dub. The four known valves are in poor condition (Scott, 1987).

— Mysella species. Synonym: ?Bomia obtusa

(Carpenter, 1857) [315] (Bernard, 1975).

Extend distribution north to near Santa Rosalia, Baja California Sur, Mexico (Draper, 1972).

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Subgenus Rochefortia Velain, 1877

327 Mysella (R.) compressa (Dali, 1913). Add subgenus (Bernard, 1983a). Los Angeles County, California, is the northern limit of the distribution. Depth: 5 to 64 m (Scott, 1987). Depth: 100 m (F. & L. Poorman, 1988).

Subfamily OROBITELLINAE Bernard, 1983a Genus Orobitella Dali, 1900

331 Orobitella bakeri (Dali, 1916). Synonyms: Erycina chacei Dali, 1916, nom. nud.\ ?Erycina santarosae Dali, 1916 (Bernard, 1983a).

334 Orobitella obliqua (Harry, 1969). Delete here. Genus changed. See Aligena.

335 Orobitella oblonga (Carpenter, 1857). Extend distribution north to Guaymas, Sonora, Mexico (Garcia-Cubas & Reguero, 1987).

338 Orobitella trigonalis (Carpenter, 1857). Delete here. Genus changed. See Isorobitella.

339 Orobitella zorrita (Olsson, 1961). Extend distribution north to Bahia San Carlos, Sonora, Mexico. Depth: 20 to 30 m (F. & L. Poorman, 1988).

Genus Isorobitella Keen, 1962

338 Isorobitella trigonalis (Carpenter, 1857). Synonym: Aligena cerritensis Arnold, 1903. Genus changed from Orobitella (Bernard, 1983a).

Genus Pythinella Dali, 1899

340 Pythinella sublaevis (Carpenter, 1857). Extend distribution north to the San Felipe area, Baja California, Mexico. Figured (Gemmell, Myers & Hertz, 1987). Depth: 35 m (F. & L. Poorman, 1988).

Subfamily THECODONTINAE Bernard, 1983a Genus Pristes Carpenter, 1864

— Pristes oblongus Carpenter, 1864. As Thecodonta (Pristes). Distribution: Monterey, California, to Baja California, Mexico (Abbott, 1974). Extend distribution into the Gulf of California at Cabo Tepoca, Sonora, Mexico. Intertidal zone (Skoglund, 1974). Extend distribution north to Bahia la Cholla, Sonora,

and across the Gulf of California to Bahia de los Angeles, Baja California, Mexico (Skoglund, 1991b).

Superfamily CYAMLACEA Family SPORTELLIDAE Genus Basterotia Hornes, 1859, ex Mayer MS Subgenus Basterotia, s. s.

342 Basterotia (B.) peninsularis (Jordan, 1936). Extend distribution north to Bahia San Carlos area, Sonora, Mexico. Depth to 25 m (F. & L. Poorman, 1988).

Subgenus Basterotella Olsson & Harbison, 1953

343 Basterotia (B.) hertleini Durham, 1950. Include the Islas GaHpagos, Ecuador, in distribution (Bernard, 1983a)

Family BERNARDINIDAE Moved from Arcticacea (Coan, 1984).

Genus Bemardina Dali, 1910

264 Bemardina margarita (Carpenter, 1857). Lectotype figured. Distribution: Isla Guadalupe, west coast of Baja California; the Gulf of California to Guaymas, Sonora, and south to Bahia Banderas, Jalisco, Mexico. Depth: intertidal zone to 21 m (Coan, 1984b).

Genus Halodakra Olsson, 1961 Subgenus Halodakra, s. s.

265 Halodakra (H.) subtrigona (Carpenter, 1857). Lectotype figured. Distribution: Tomales Bay, Marin County, California, to and throughout the Gulf of California, Mexico, to Peru. Depth: intertidal zone to 24 m (Coan, 1984b). Include the Islas Galdpagos, Ecuador, in distribution (Coan, 1989).

Superfamily CHAMACEA Family CHAMIDAE Genus Chama Linnaeus, 1758 Subgenus Chama, s. s.

— Chama (C.) arcana Bernard, 1976. Synonym: Chama pellucida Broderip, auctt., non Broderip, 1835. Length: 55 mm. Distribution: Yaquina Point, Oregon, to Bahia San Juanico, west

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coast of Baja California Sur, Mexico. Depth: intertidal to 50 m (Bernard, 1976). Extend distribution into the Gulf of California from Bahia de los Angeles, Baja California, to Bahia San Nicholas, Baja California Sur, Mexico (Skoglund, 1991c).

346 Chama (C.) buddiana C. B. Adams, 1852. Extend distribution north to Puerto Parker, Costa Rica. Low intertidal zone to 2 m (Bernard, 1976). Extend distribution north to La Union, El Salvador (Hernandez, 1979). Lectotype figured. Synonyms: Chama mexicana Carpenter, auctt., non Carpenter, 1857 [349]; C. frondosa fornicata Carpenter, 1857. Distribution: San Felipe, Baja California, Mexico, to the Islas Galdpagos, Ecuador (Hertz, Gemmell & Myers, 1982). Length: 119.9 mm (Wagner & Abbott, 1990).

346a Chama (C.) corallina Olsson, 1971. Holotype figured. Extend distribution north to Sonora, Mexico. Depth: 18 to 95 m (Bernard, 1976).

347 Chama (C.) echinata Broderip, 1835. Syntype figured. Synonym: Chama delesserti Chenu, 1846. Distribution: Isla Angel de la Guarda, Gulf of California, Mexico, south to Isla Huanape, northern Peru (Bernard, 1976). Synonym: Chama frondosa mexicana Carpenter, 1857 (Hertz, Gemmell & Myers, 1982). No synonyms listed (Moore, 1988). Length: 74 mm (Wagner & Abbott, 1990).

348 Chama (C.) frondosa Broderip, 1835. Extend distribution north to near Santa Rosalia, Baja California Sur, Mexico (Draper, 1972). Holotype figured. Add synonym: Chama pacifica Carpenter, 1857, ex Gould MS, nom. nud., non Broderip, 1834. Intertidal zone to 25 m, on boulders (Bernard, 1976). Synonym: Chama producta Broderip, 1835. Holotype figured (Hertz, Gemmell & Myers, 1982). Extend distribution north to San Felipe, Baja California, Mexico (Gemmell, Myers & Hertz, 1987). No synonyms listed (Moore, 1988). Length: 126.7 mm (Wagner & Abbott, 1990).

— Chama (C.) garthi Bernard, 1976. Synonym: Chama spinosa Broderip, auctt., non Broderip, 1835. Height: 23.7 mm. Distribution: Colombia & Ecuador. Depth: intertidal zone to 22 m (Bernard, 1976).

349 Chama (C.) mexicana Carpenter, 1857. Synonyms: Chama producta Broderip, 1835 (nom. obi); C. purpurascens Tryon, 1872, ex

Conrad MS; C. compacta Clessin, 1889. Extend distribution south to Guatemala. Depth to 80 m (Bernard, 1976). Delete. Becomes synonym of C. buddiana C. B. Adams, 1852 [346] (Hertz, Gemmell & Myers, 1982).

— Chama (C.) pelhicida Broderip, 1835. Distribution: Oregon to Chile; Islas Galdpagos (Dali, 1921). Synonym: Chama chilensis Philippi, 1887. Holotype of C. chilensis figured. Distribution: Paita, Piura Province, Peru, to Chile. Depth: intertidal zone to 30 m (Bernard, 1976).

350 Chama (C.) sordida Broderip, 1835. Syntype figured. Delete Chama digueti Rochebrune, 1895, as synonym (Bernard, 1976).

351 Chama (C.) squamuligera Pilsbry & Lowe, 1932. Add synonym: Chama rubropicta Bartsch & Rehder, 1939. Add L’lle Clipperton (France), to distribution. Depth: subtidal zone to 20 m (Bernard, 1976). Length: 28.8 mm (Draper, 1987). Extend distribution to Mexican mainland at Bahia San Carlos area, Sonora (F. & L. Poorman, 1988). No synonyms listed (Moore, 1988).

— Chama (C.) tinctoria Bernard, 1976. Height: 37 mm. Distribution: Islas Tres Marias, Mexico, to Panama. Depth: 15 to 92 m (Bernard, 1976).

352 Chama (C.) venosa Reeve, 1847. Holotype figured. Synonym: Chama digueti Rochebrune, 1895. Distribution: Isla Angel de la Guarda, Gulf of California, Mexico, to Paita, Piura Province, Peru. Depth: subtidal zone to 4 m (Bernard, 1976).

Genus Arcinella Schumacher, 1817

353 Arcinella califomica (Dali, 1903). Holotype figured. Extend distribution south to Colombia. Depth: 25 to 77 m (Bernard, 1976). Length: 44.3 mm (Draper, 1987). Extend distribution into the Gulf of California at Bahia San Carlos, Sonora, Mexico (F. & L. Poorman, 1988).

Genus Pseudochama Odhner, 1917

354 Pseudochama clarionensis Willett, 1938. Distribution: Isla Clarion, Mexico, south on the mainland coast to Isla del Tigre, Honduras; the Islas GaHpagos, Ecuador. Depth: 27 to 55 m (Bernard, 1976).

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355 Pseudochama corrugata (Broderip, 1835). Extend distribution north to near Santa Rosalia, Baja California Sur, Mexico (Draper, 1972). Distribution: Isla Partida, Gulf of California, Mexico, to Bahia Sechura, Peru. Depth: intertidal to 5 m (Bernard, 1976).

356 Pseudochama dalli Bernard, 1976. Synonym: Chama inermis Dali, 1871, ex Carpenter MS, non Deshayes, 1863. Distribution: Islas Tres Marias, Mexico, to Panama. Only on wooden pilings, subtidal zone to 5 m (Bernard, 1976).

— Pseudochama exogyra (Conrad, 1837). Synonym: Pseudochama grand Strong, 1934. Syntype figured. Type locality of P. grand : Isla Clari6n, Mexico. Distribution: southern British Columbia, Canada, to Isla San Benito, Mexico. Intertidal zone to 155 m (Bernard, 1976). Length: 79.7 mm (Draper, 1987). Type locality of P. grand is actually Catalina Island, California (Strong, 1934), which is north of the Panamic Province.

357 Pseudochama janus (Reeve, 1847). Holotype figured. Endemic to the Islas GaHpagos, Ecuador. Depth: 10 to 25 m (Bernard, 1976).

358 Pseudochama panamensis (Reeve, 1847). Extend distribution north to near Santa Rosalia, Baja California Sur, Mexico (Draper, 1972). Holotype figured. Distribution: Bahia San Luis Gonzaga, Baja California, Mexico, to Cabo San Francisco, Ecuador. Depth: midtide zone to 10 m (Bernard, 1976). Length: 46.7 mm (Draper, 1987).

359 Pseudochama saavedrai Hertlein & Strong, 1946. Holotype figured. Distribution: Puerto Penasco, Sonora, Mexico, to Panama. Depth: low intertidal zone to 55 m (Bernard, 1976). Length: 71 mm (Wagner & Abbott, 1990).

Superfamily CARDIACEA Family CARDIIDAE Follows Keen (1980).

Subfamily TRACHYCARDIINAE Genus Trachycardium Morch, 1853 Trachycardium as a subgenus of Laevicardium by Fischer-Piette (1977), and as a genus (Keen, 1980).

Subgenus Trachycardium, s. s.

360 Trachycardium (T.) consors (Sowerby, 1833). Depth: 30 to 100 m (F. & L. Poorman, 1988).

Length: 95.3 mm (Wagner & Abbott, 1990). Subgenus Dallocardia Stewart, 1930

362 Trachycardium (D.) sendcosum (Sowerby, 1833). As Laevicardium (Trachycardium) by Fischer- Piette (1977). Fischer-Piette’s specimen was not this species. Reinstate as above (Keen, 1980). Depth: intertidal zone (Gemmell, Myers & Hertz, 1987). Length: 122.2 mm (Draper,

1987) .

Subgenus Mexicardia Stewart, 1930

363 Trachycardium (M. ) panamense (Sowerby, 1833). Height: 114 mm (Draper, 1987).

364 Trachycardium (M. ) procerum (Sowerby, 1833). Add synonym: Cardium subelongatus Valenciennes, 1846. Include Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a). Distribution confirmed to Nayarit, Mexico (Reguero & Garcia-Cubas, 1989). Height: 91 mm (Draper, 1987).

Subgenus Phlogocardia Stewart, 1930

365 Trachycardium (P.) belcheri (Broderip &

Sowerby, 1829). As Laevicardium

(Trachycardium) by Fischer-Piette (1977). As Trachycardium (P.) (Keen, 1980). Depth: 80 to 140 m (Bernard, 1983a). Extend distribution south to Isla Gorgona, Colombia (von Prahl, 1986). Depth: 35 to 60 m (F. & L. Poorman,

1988) .

Genus Acrosterigma Dali, 1900 Raised from subgenus (Keen, 1980).

361 Acrosterigma prisdpleura (Dali, 1901). As Laevicardium (Trachycardium) by Fischer-Piette (1977), and as Acrosterigma (Keen, 1980). Height: 118.9 mm (Wagner & Abbott, 1990).

Genus Papyridea Swainson, 1840

366 Papyridea aspersa (Sowerby, 1833). Depth: 40 to 60 m (F. & L. Poorman, 1988). Length: 62 mm (Draper, 1987).

368 Papyridea mantaensis Olsson, 1961. Length: 70.1 mm (Draper, 1987).

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Subfamily FRAGINAE Genus Trigoniocardia Stewart, 1930 Subgenus Trigoniocardia, s. s.

369 Trigoniocardia (T.) granifera (Broderip & Sowerby, 1829). As Corculum (Trigoniocardia) by Fischer-Piette (1977), and as Trigoniocardia (Keen, 1980). Length: 16 mm (Draper, 1987). Depth: 35 m (F. & L. Poorman, 1988).

Subgenus Americardia Stewart, 1930 As a genus (Abbott, 1974; McLean, 1978) and a subgenus (Keen, 1980).

370 Trachycardium (A.) biangulata (Broderip & Sowerby, 1829). As Corculum (Trigoniocardia) by Fischer-Piette (1977), and Trachycardium (Americardia) by Keen (1980). Synonym: Cardium modestum Conrad, 1855, non Philippi, 1845 (Bernard 1983a). Include the Islas GaHpagos, Ecuador, in distribution (Finet, 1985). Length: 42.5 mm (Wagner & Abbott, 1990).

371 Trachycardium (A.) guanacastensis (Hertlein & Strong, 1947). As Corculum (Trigoniocardia) by Fischer-Piette (1977), and Trachycardium (Americardia) by Keen (1980).

Subgenus Apiocardia Olsson, 1961

372 Trachycardium (A.) obovalis (Sowerby, 1833). Extend distribution south to Tumbes, Peru (Pena, 1971). Depth: 51 m (Cruz-P., 1977). Add synonyms: Hemicardia affinis Nelson, 1870, non Cardium affine Munster, 1835; Cardium spiekeri Hanna & Israelsky, 1925 (Bernard, 1983a). Height: 23 mm (Draper, 1987).

Subfamily PROTOCARDIINAE Genus Nemocardium Meek, 1876 Subgenus Lophocardium Fischer, 1887 Changed from genus (Keen, 1980).

373 Nemocardium (L.) annettae (Dali, 1889). Depth: intertidal zone to 50 m (Bernard, 1983a).

374 Nemocardium (L.) cumingii (Broderip, 1833). Length: 47.4 mm (Wagner & Abbott, 1989).

Subgenus Microcardium Thiele, 1934

375 Nemocardium (M.) panamense (Dali, 1908).

Total ribs 47 to 58 (Olsson, 1961). Synonym: Microcardium williami Fischer-Piette, 1977 (Keen, 1980).

376 Nemocardium (M.) pazianum (Dali, 1916). Extend distribution south to Esmeraldas, Ecuador (Cruz-P., 1977). Length: 16.9 mm (Draper, 1987). Extend distribution into the Gulf of California to Bahia San Carlos, Sonora, Mexico. Depth: 20 to 100 m (F. & L. Poorman, 1988).

Subfamily LAEVICARDIINAE Genus Laevicardium Swainson, 1840

377 Laevicardium clarionense (Hertlein & Strong, 1947). Length: 79.7 mm (Draper, 1987). Extend distribution across the Gulf of California to Bahia San Carlos, Sonora, Mexico. Depth: 35 to 60 m (F. & L. Poorman, 1988). Extend distribution south to Nayarit, Mexico (Reguero & Garcla-Cubas, 1989).

378 Laevicardium elatum (Sowerby, 1833). Bernard (1983a) states distribution only from 16°N to 34°N. Height: 190 mm (Draper, 1987).

379 Laevicardium elenense (Sowerby, 1841). Add synonym: Laevicardium pedemalense Pilsbry & Olsson, 1941. Include the Islas GaMpagos, Ecuador, in distribution (Bernard, 1983a).

— Laevicardium substriatum (Conrad, 1837). Distribution: Ventura County, California, to the Gulf of California, Mexico (Abbott, 1974). Synonym: Cardium cruentatum Gould, 1855. Distribution: 24°N-34°N. Depth: intertidal zone to 40 m (Bernard, 1983a). Length: 28 mm (Draper, 1987).

Superfamily VENERACEA Family VENERIDAE Subfamily VENERINAE Genus Periglypta Jukes-Browne, 1914

380 Periglypta multicostata (Sowerby, 1835). Synonym: Cytherea caesarina Dali, 1903 (Tardin Cassab, 1984). Include the Islas GaHpagos, Ecuador, in distribution (Finet, 1985). Depth to 20 m (F. & L. Poorman, 1988). Length: 138.6 mm (Wagner & Abbott, 1990). Delete synonym. Cytherea caesarina Dali, 1903, is a valid Caribbean fossil species (Pauley, pers. comm., 1991).

Genus Gbbivenus Coen, 1934

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Synonym: Ventricolaria Keen, 1954 (Turgeon et al„ 1988).

— Globivenus fordi (Yates, 1890). As genus

Circomphalus (Abbott, 1974). As Ventricolaria. Distribution: 28°N-37°N (Bernard, 1983a). Length: 75.2 mm (Draper, 1987). Extend

distribution into the Gulf of California at Isla Smith, Bahia de los Angeles, Baja California, Mexico (Skoglund, 1988). Lectotype figured (Scott, Hochberg & Roth, 1990).

381 Globivenus isocardia (Verrill, 1870). Extend distribution to Manta, Ecuador (Olsson, 1961). On the basis of a study of illustrations, Ventricolaria isocardia placed in the synonomy of Caribbean V rigida (Dillwyn, 1817) (Fischer- Piette, 1975). Extend distribution to the Islas Galdpagos, Ecuador (Shasky, 1989). Length: 113.2 mm (Wagner & Abbott, 1990).

— Globivenus lavezzarii (Fischer-Piette, 1975). As Venus. Peru. Exact locality unknown (Fischer- Piette, 1975).

382 Globivenus magdalenae (Dali, 1902). Extend distribution north to Bahia San Carlos, Sonora, Mexico. Depth: 110 m (F. & L. Poorman, 1988).

Subfamily CIRCINAE Genus Gouldia C. B. Adams, 1847 Subgenus Gouldia, s. s.

383 Gouldia (G.) califomica Dali, 1917. Extend distribution south to Ecuador (Abbott, 1974). Bernard (1983) includes the Islas Galdpagos, Ecuador, but gives the distribution as 8°N-26°N. Distribution to the Islas Galdpagos, Ecuador, confirmed (Finet, 1985).

Subfamily MERETRICINAE Genus Tivela Link 1807 Subgenus Tivela, s. s.

384 Tivela (T.) argentina (Sowerby, 1835). Extend distribution south to Tumbes, Peru (Pena, 1971). Extend distribution to western side of the Gulf of California at San Felipe, Baja California, Mexico (Gemmell, Hertz & Myers, 1980). Distribution: 2°S-31°N (Bernard, 1983a). Length: 62.2 mm (Wagner & Abbott, 1990).

385 Tivela (T.) byronensis (Gray, 1838). Extend distribution south to Tumbes, Peru (Pena,

1971). Depth to 90 m (Cruz-P., 1977). Add synonyms: Tivela elegans Verrill, 1870; Mactra calbucana Philippi, 1893; M. coquimbana Philippi, 1893. Include the Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a). Length: 61.3 mm (Draper, 1987).

386 Tivela (T.) delessertii (Sowerby, 1854). Add synonym: ?Tivela marginata "Carpenter" Berry, 1907 (Bernard, 1983a). Delete ?Tivela marginata "Carpenter" Berry, 1907, as a synonym (Coan, 1984b).

Subgenus Pachydesma Conrad, 1854

— Tivela (P.) stultorum Mawe, 1854. Synonym: Cytherea (Trigoella) crassatelloides Conrad, 1837. Length: 187 mm. Distribution: Marin County, California, to Bahia Magdalena, Baja California Sur, Mexico. Depth: intertidal zone to 24 m (Hertlein & Grant, 1972). Synonyms: C. solidisima Philippi, 1851; C. (Tivela) crassatelloides pauciradiata, C. c. multiradiata, C. c. altemata, C. c. eccentrica, C. c. serialis, C. c. interrupta, C. c. luteobrunea, C. c. uniradiata, C. c. biradiata, C. c. triradiata, C. c. ochracea, C. c. purpureochocolata, C. c. biserialis, C. c. triserialis, C. c. aurora, C. c. duplicata: all Stearns, 1899. Distribution: 25°N-37°N, intertidal zone to 5 m (Bernard, 1983a).

Subgenus Planitivela Olsson, 1961

389 Tivela (P.) hians (Philippi, 1851). Delete. Becomes a synonym of Tivela lessonii (Deshayes, 1830), which has a distribution (12°S-30°S) outside of the Panamic Province (Bernard, 1983a).

390 Tivela (P.) planulata (Broderip & Sowerby, 1830). Extend distribution south to Mdncora, Peru (Pena, 1971). Length: 64.9 mm (Draper, 1989).

Genus Transennella Dali, 1884 Correct date from 1883 (Keen & Coan, 1975).

Subgenus Transennella, s. s.

391 Transennella (T.) caryonautes Berry, 1963. Depth: 20 to 150 m (Bernard, 1983a). Holotype figured (Hertz, 1984).

394 Transennella (T.) modesta (Sowerby, 1835).

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Extend distribution north to near Santa Rosalia, Baja California Sur, Mexico (Draper, 1972). Include the Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a). Extend distribution across Gulf of California to Bahia San Carlos, Sonora, Mexico (F. & L. Poorman,

1988) .

Subfamily PITARINAE Genus Pitar Romer, 1857 Subgenus Pitar, s. s.

397 Pitar (P.) berryi Keen, 1971. Distribution: 21°N-23°N. Depth: 15 to 40 m (Bernard, 1983a). Length: 51 mm (Draper, 1987). Extend distribution north to Bahia San Carlos, Sonora, Mexico (F. & L. Poorman, 1988).

398 Pitar (P.) consanguineus (C. B. Adams, 1852). Distribution: 1°S-16°N, including the Islas Galdpagos, Ecuador (Bernard, 1983a). Include Isla Gorgona, Colombia, in distribution (von Prahl, 1986).

— Pitar (P.) newcombianus (Gabb, 1865). Distribution: Monterey, California, to Punta Penasco, Sonora, and south to Guatulco, Oaxaca; Isla Clarion, Mexico (Hertlein & Grant, 1972). Depth: 45 to 220 m (Bernard, 1983a).

401 Pitar (P.) helenae Olsson, 1961. Extend distribution south to the Islas Galdpagos, Ecuador (Finet, 1985). Include Isla Gorgona, Colombia, in distribution (von Prahl, 1986).

403 Pitar (P.) perfragilis Pilsbry & Lowe, 1932. Length: 11.4 mm. Extend distribution north to near Santa Rosalia, Baja California Sur, Mexico (Draper, 1972). Extend distribution across the Gulf of California to Bahia San Carlos, Sonora, Mexico. Depth: 100 m (F. & L. Poorman, 1988). Extend distribution north to Isla Smith, Bahia de los Angeles, Baja California, Mexico. Depth: 14 to 183 m (Skoglund, 1988). Extend distribution south to Bahia Cocos, Costa Rica (Skoglund, 1990a).

Subgenus Hyphantosoma Dali, 1902

405 Pitar (H.) hertleini Olsson, 1961. Length: 48 mm (Draper, 1987). Extend distribution north to Nayarit, Mexico (Reguero & Garcia-Cubas,

1989) .

406 Pitar (H.) pollicaris (Carpenter, 1864).

Distribution: 26°N-29°N. Depth: intertidal zone to 15 m (Bernard, 1983a). Length: 86.4 mm (Draper, 1987). Depth: 20 m (F. & L. Poorman, 1988).

Subgenus Hysteroconcha Dali, 1902 Juvenile spine development (Skoglund, 1976).

408 Pitar (H.) lupanaria (Lesson, 1830). Length: 96.5 mm (Wagner & Abbott, 1990).

409 Pitar (H.) multispinosus (Sowerby, 1851). Length: 51.4 mm (Draper, 1987).

410 Pitar (H.) roseus (Broderip & Sowerby, 1829).

Extend distribution south to Peru (Abbott, 1974). Confirm distribution to Esmeraldas

Province, Ecuador (Baldazzi, Di Cecco & Tiberi, 1986). Length: 53.4 mm (Draper, 1987). Correct synonym to read: Cytherea

lepida Chenu, auctt., non Chenu, 1847 (Coan, pers. comm., 1990).

Subgenus Lamelliconcha Dali, 1902

411 Pitar (L.) altematus (Broderip, 1835). Add synonym: Dione pura Deshayes, 1853 (Bernard, 1983a).

412 Pitar (L.) callicomatus (Dali, 1902). Extend distribution north to Nayarit, Mexico (Reguero & Garcia-Cubas, 1989).

413 Pitar (L.) concinnus (Sowerby, 1835). Length: 45.8 mm (Draper, 1987).

414 Pitar (L.) frizzelli Hertlein & Strong, 1948. Extend distribution north to Bahia San Carlos, Sonora, Mexico. Depth: 35 to 100 m (F. & L. Poorman, 1988).

415 Pitar (L.) hesperius Berry, 1960. Holotype figured (Hertz, 1984). Length: 48.2 mm (Draper, 1987).

416 Pitar (L.) paytensis Orbigny, 1845. Depth: 91 m (Cruz-P., 1977). Add synonym: Pitar (L.) salanga Pilsbry & Olsson, 1941 (Bernard, 1983a).

417 Pitar (L.) tortuosus (Broderip, 1835). Extend distribution south to Tumbes, Peru (Pena, 1971). Distribution: 3°S-28°N (Bernard, 1983a).

418 Pitar (L.) unicolor (Sowerby, 1835). Extend distribution north to the Gulf of California, Mexico (Abbott, 1974). Length: 58.4 mm (Draper, 1987). Distribution confirmed to Nayarit, Mexico (Reguero & Garcia-Cubas, 1989).

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419 Pitar (L.) vinaceus (Olsson, 1961). Length: 34.8 mm (Draper, 1987).

Subgenus Pitarella Palmer, 1927

420 Pitar (P.) aequinoctialis (Fischer-Piette, 1969). Extend distribution north to Esmeraldas, Ecuador. Depth: 47 to 90 m (Cruz-P., 1977).

421 Pitar (P.) catharius (Dali, 1902). Depth: 35 to 100 m (F. & L. Poorman, 1988).

422 Pitar (P.) mexicanus Hertlein & Strong, 1948. Extend distribution south to Ecuador (Abbott, 1974). Distribution: 9°N-31°N (Bernard, 1983a). Length: 59.2 mm (Draper, 1987).

Subgenus Tinctora Jukes-Brown, 1914

423 Pitar (T. ) vulneratus (Broderip, 1835). Length: 51.9 mm (Draper, 1987).

Genus Amiantis Carpenter, 1864

— Amiantis callosa (Conrad, 1837). Synonyms: Cytherea nobilis Reeve, 1850; Pitaria stalderi Clark, 1915; Antigona willisi Trask, 1922. Distribution: 23°N-35°N. Depth: 1 to 20 m (Bernard, 1983a). Length: 120.7 mm (Draper, 1987).

Genus Megapitaria Grant & Gale, 1931

424 Megapitaria aurantiaca (Sowerby, 1831). Include the Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a). Length: 129.7 mm (Wagner & Abbott, 1990).

425 Megapitaria squalida (Sowerby, 1835). Include the Islas GaHpagos, Ecuador, in distribution (Bernard, 1983a). Depth to 35 m (F. & L. Poorman, 1988). Length: 122 mm (Wagner & Abbott, 1990).

Subfamily DOSINIINAE Genus Dosinia Gray, 1835 Subgenus Dosinia, s. s.

426 Dosinia (D.) dunkeri (Philippi, 1844). Add synonym: Cytherea (Artemis) angulosa Philippi, 1847. Include the Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a). Depth to 100m (F. & L. Poorman, 1988).

427 Dosinia (D.) ponderosa (Schumacher, 1817). Add synonyms: Artemis distans Sowerby, 1851; Dosinia grandis Nelson, 1870; ?D. (Dosinidia) titan Maury, 1925. Include the Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a). Length: 156.5 mm (Draper, 1987).

428 Dosinia (D.) semiobliterata Deshayes, 1853. Add synonym: Artemis nanus Reeve, 1850 (Bernard, 1983a). Length: 73.7 mm (Draper, 1987).

Subfamily CYCLININAE Genus Cyclinella Dali, 1902

429 Cyclinella jadisi Olsson, 1961. Length: 50.9 mm (Draper, 1987). Extend distribution north to Bahia San Carlos, Sonora, Mexico. Depth: 35 m (F. & L. Poorman, 1988).

431 Cyclinella saccata (Gould, 1851). Length: 68.4 (Draper, 1987).

432 Cyclinella singleyi Dali, 1902. Extend distribution south to Tumbes, Peru (Pena, 1971). Synonym: Cyclinella galera Pilsbry & Olsson, 1941 (Bernard, 1983a).

433 Cyclinella subquadrata (Hanley, 1845). Include the Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a).

Subfamily CLEMENTINIINAE Genus Clementia Gray, 1842 Subgenus Egesta Conrad, 1845

435 Clementia ( E .) solida Dali, 1902. Subgenus changed from Clementia, s. s. (Bernard, 1983a). Length: 71.9 mm (Wagner & Abbott, 1990).

Subgenus Clementia s. 1.

436 Clementia gracillima Carpenter, 1857. Delete. Nom. dub. (Bernard, 1983a).

Genus Compsomyax Stewart, 1930

437 Compsomyax subdiaphana (Carpenter, 1864). Synonyms: Saxidomus gibbosus Gabb, 1869; Callista subdiaphana pedroana Arnold, 1903; Clementia obliqua Jukes-Brown, 1913 (Bernard, 1983a). Length: 84 mm (Wagner & Abbott, 1990).

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Subfamily TAPETINAE Genus Eurhomalea Crossmann, 1920

— Eurhomalea decussata (Deshayes, 1853). Distribution: 4°S-13°S. Intertidal zone (Bernard, 1983a).

Genus Irus Schmidt, 1818 Subgenus Paphonotia Hertlein & Strong, 1948

438 Irus (P.) ellipticus (Sowerby, 1834). Add synonyms: ?Petricola discors Sowerby, 1834; Venerupis fimbriata Sowerby, 1855. Correct author date on synonym Petricola oblonga to Sowerby, 1834, and of P. solidula to Sowerby, 1855 (Bernard, 1983a).

Subfamily CHIONINAE Genus Chione Megerle, 1811 Subgenus Chione, s. s.

440 Chione (C.) califomiensis (Broderip, 1835). As a synonym of Chione undatella (Sowerby, 1835) [445] by Fischer-Piette & Vukadinovic (1977). Distribution: Goleta, California, to Peru (McLean, 1978). Reinstate as a valid species. Add synonyms: Venus brevilineata Conrad, 1849; V. lamellifera Conrad, 1849; Chione (C.) califomiensis peabodyi Parker, 1949. Distribution restricted 17°N-34°N (Bernard, 1983a). Length: 76.4 mm (Draper, 1987).

441 Chione (C.) compta (Broderip, 1835). Synonym: Venus neglecta Gray, 1839, non Sowerby, 1839. Include the Islas Galdpagos, Ecuador, in distribution. Depth: 20 to 30 m (Bernard, 1983a). Length: 45.7 mm (Draper, 1987).

442 Chione (C.) guatulcoensis Hertlein & Strong, 1948. Extend distribution north to La Paz, Baja California Sur, Mexico. Intertidal zone (Hertz & Hertz, 1984). Length: 14.8 mm (Draper, 1987).

443 Chione (C.) subimbricata (Sowerby, 1835). Synonym: Chione tumens (Verrill, 1870) [444] (Fischer-Piette & Vukadinovic, 1977). Delete Chione tumens as a synonym (Bernard, 1983a). Length: 42.4 mm (Draper, 1987).

444 Chione (?C.) tumens (Verrill, 1870). Delete. A synonym of Chione subimbricata (Sowerby, 1835) [443] (Fischer-Piette & Vukadinovic, 1977). Is a valid species. Depth: intertidal

zone to 10 m (Bernard, 1983a). Length: 44.5 mm (Draper, 1987).

445 Chione (C.) undatella (Sowerby, 1835). Synonym: Chione califomiensis (Broderip, 1835) [440] (Fisher-Piette & Vukadinovic, 1977). Distribution: Goleta, California, to Peru (McLean, 1978). Anatomy figured (Jones, 1979). Delete Chione califomiensis as a synonym. Add synonym: Venus calif omiana Conrad, 1837 (Bernard, 1983a). Include the Islas Galdpagos, Ecuador, in distribution (Finet, 1985). Length: 61.4 mm (Wagner & Abbott, 1990).

Subgenus Chionista Keen, 1958

446 Chione (C.) cortezi (Carpenter, 1864, ex Sloat MS). Length: 88.5 mm (Draper, 1987).

447 Chione (C.) fluctifraga (Sowerby, 1853). Hinge figured (Fischer-Piette & Vukadinovic, 1977). Distribution: Mugu Lagoon, California, to the Gulf of California, Mexico (McLean, 1978). Synonym: Venus sugillata Reeve, 1863 (Bernard, 1983a). Extend distribution south to Laguna de Agiabampo, Sonora/Sinaloa, Mexico (Garcia-Cubas & Reguero, 1987). Length: 86 mm (Wagner & Abbott, 1990).

Subgenus Iliochione Olsson, 1961

— Chione (I.) broggi (Pilsbry & Olsson, 1943). Distribution: 4°S-33°S. Depth: intertidal zone to 5 m (Bernard, 1983a).

457 Chione (I.) submgosa (Wood, 1828). Hinge figured. Synonyms: Venus triradiata Anton, 1839; Anomalocardia broggi Pilsbry & Olsson, 1943 (Fischer-Piette & Vukadinovic, 1977). Delete Anomalocardia broggi as a synonym. Include the Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a).

Subgenus Lirophora Conrad, 1863

459 Chione (L.) kellettii (Hinds, 1845). Length: 75 mm (Wagner & Abbott, 1990).

460 Chione (L.) mariae (Orbigny, 1846). Include the Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a).

461 Chione (L.) obliterata Dali, 1902. Distribution: 9°N-19°N (Bernard, 1983a). Extend distribution north to Yavaros, Sonora, Mexico

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(Garcfa-Cubas & Reguero, 1987).

Genus Chionopsis Olsson, 1932 Raised to genus (Fischer-Piette & Vukadinovic, 1977).

448 Chionopsis amathusia (Philippi, 1844). Add synonym: Chione variabilis Nelson, 1870. Delete IVenus darwinii Dunker, in ROmer, 1857, as a synonym (Bernard, 1983a). Length: 65.4 mm (Draper, 1987).

449 Chionopsis crenifera (Sowerby, 1835). As a synonym of Nioche subrostrata Lamark, 1818 (Fischer-Piette & Vukadinovic, 1977). Is a valid species. Synonym: Venus eximia Philippi, 1847, non Forbes, 1846 (Bernard, 1983a).

450 Chionopsis gnidia (Broderip & Sowerby, 1829). Synonyms: Venus amathusia Philippi, 1844 [448]; Venus darwinii Romer, 1858, ex Dunker MS; Chione jamaniana Pilsbry & Olsson, 1941 [451] (Fischer-Piette & Vukadinovic, 1977). Delete as synonyms: Venus amathusia and Chione jamaniana (Bernard, 1983a). Length: 116.7 mm (Wagner & Abbott, 1990).

451 Chionopsis jamaniana (Pilsbry & Olsson, 1941). Distribution: 0°-5°S (Bernard, 1983a).

452 Chionopsis montezuma (Pilsbry & Lowe, 1932).

453 Chionopsis olssoni (Fischer-Piette, 1969). Delete. Becomes a synonym of Chionopsis purpurissata (Dali, 1902) [456] (Fischer-Piette & Vukadinovic, 1977).

454 Chionopsis omatissima (Broderip, 1835). Depth: 51 m (Cruz-P., 1977).

455 Chionopsis pulicaria (Broderip, 1835). Synonym: Chione montezuma Pilsbry & Lowe, 1932 [452] (Fischer-Piette & Vukadinovic, 1977). Delete Chione montezuma as a synonym. Add synonym: Venus pinacatensis Carpenter, 1864, ex Sloat MS (Bernard, 1983a). Length: 57.1 mm (Wagner & Abbott, 1990).

456 Chionopsis purpurissata (Dali, 1902). As Chionopsis (Puberella) pubera (Bory de St. Vincent, 1827) with synonym Chionopsis olssoni Fischer-Piette, 1968 [453] (Fischer-Piette & Vukadinovic, 1977). As Chione purpurissata (Bernard, 1983a). Depth: 80 m (F. & L. Poorman, 1988). Extend distribution south to Bahia Cocos, Costa Rica (Skoglund, 1990a). Extend distribution south to Guayas, Ecuador (Skoglund, 1990b).

Genus Timoclea Brown, 1827 Raised from subgenus (Fischer-Piette & Vukadinovic, 1977)

— Timoclea picta (Willett, 1944). Distribution: 17°N-29°N, intertidal zone to 50 m (Bernard, 1983a). Delete. Becomes a synonym of Chione (T.) squamosa (Carpenter, 1857) [463] (Gemmell, Myers & Hertz, 1987).

463 Timoclea squamosa (Carpenter, 1857). T. squamosa regarded as a synonym of T. troglodytes MOrch, 1861, by Fischer-Piette & Vukadinovic (1977). A valid species. Depth: 10 to 50 m (Bernard, 1983a). Synonym: Chione picta Willett, 1944. Distribution confirmed to San Felipe, Baja California, Mexico, intertidal zone. Length: 15mm (Gemmell, Myers & Hertz, 1987).

Genus Mercenaria Schumacher, 1817

464 Mercenaria apodema (Dali, 1902). Delete. Probably a ballast shell referrable to an Atlantic species (Bernard, 1983a).

Genus Protothaca Dali, 1902 Subgenus Protothaca, s. s.

— Protothaca (P.) staminea (Conrad, 1837). Synonyms: Venerupis petittii Deshayes, 1839; Tapes ruderata Deshayes, 1853; Tapes staminea orbella Carpenter, 1864; Protothaca staminea spatiosa Dali, 1916. Distribution: Aleutian Islands to Cabo San Lucas, Baja California Sur, Mexico. Depth: shore to 46 m (Hertlein & Grant, 1972). Synonyms: Venus pectunculoides Valenciennes, 1846; Tapes diversa Sowerby, 1855; Venus dispar Carpenter, 1857; V ampliata Carpenter, 1857; V mundulus Reeve, 1863; Leukoma conradi Romer, 1867; Paphia ( Protothaca ) staminea sulculosa, Dali, 1902; Protothaca grewingkii Dali, 1904. Distribution: 23°N-60°N, intertidal zone to 10 m (Bernard, 1983a).

Subgenus Antinioche Olsson, 1961

465 Protothaca (A.) beili (Olsson, 1961). As Nioche by Fischer-Piette & Vukadinovic (1977), and Protothaca by Bernard (1983a). Extend

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distribution north to the Gulf of Fonseca, El Salvador (Herndndez, 1979).

Subgenus Colonche Olsson, 1961

466 Protothaca (C.) ecuadoriana (Olsson, 1961). As Nioche by Fischer-Piette & Vukadinovic (1977), and Protothaca by Bernard (1983a).

Subgenus Leukoma Romer, 1857

467 Protothaca (L.) asperrima (Sowerby, 1835). Placed in genus Nioche as a synonym of Nioche cardilla Lamarck, 1818 (Fischer-Piette & Vukadinovic, 1977). A valid species. Delete Tapes tumida Sowerby, 1853, as a synonym. Include the Islas Galdpagos, Ecuador in distribution (Bernard, 1983a). Length: 63.9 mm (Draper, 1987). Correct date on synonym Venus intersecta to Sowerby, 1853 (Coan, pers. comm., 1990).

468 Protothaca (L.) macgintyi (Olsson, 1961). As Nioche by Fischer-Piette & Vukadinovic (1977). As Protothaca. Change spelling from mcgintyi (Bernard, 1983a).

469 Protothaca (L.) metodon (Pilsbry & Lowe, 1932). Placed in genus Nioche by Fischer- Piette & Vukadinovic (1977), and Protothaca by Bernard (1983a). Length: 46.4 mm (Draper, 1987).

470 Protothaca (L.) subaequilateralis (Fischer- Piette, 1969). Placed in Nioche by Fischer- Piette & Vukadinovic (1977), and Protothaca by Bernard (1983a).

471 Protothaca (L.) zorritensis (Olsson, 1961). Hinge figured. Placed in genus Nioche by Fischer-Piette & Vukadinovic (1977). As Protothaca. Include the Islas Galdpagos in distribution (Bernard, 1983a).

Subgenus Notochione Hertlein & Strong, 1948

472 Protothaca (N.) columbiensis (Sowerby, 1835). Extend distribution north to Laguna de Topolobampo, Sinaloa, Mexico (Garcia-Cubas & Reguero, 1987). Length: 59.6 mm (Draper, 1987).

Subgenus Tropithaca Olsson, 1961

473 Protothaca (T.) grata (Say, 1831). Hinge

figured (Fischer-Piette & Vukadinovic, 1977). Synonym: Venus neglecta Philippi, 1844, non Sowerby, 1839. Include the Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a). Length: 49.5 mm (Draper, 1987).

Family PETRICOLIDAE Genus Petricola Lamarck, 1801 Subgenus Petricola, s. s.

476 Petricola (P.) exarata (Carpenter, 1857). Extend distribution south to Mdncora, Peru (Pena, 1971). Add synonyms: Petricola anachoreta Folin, 1867; Cypricardia noemi Folin, 1867 (Bernard, 1983a).

477 Petricola (P.) lucasana Hertlein & Strong, 1948. Extend distribution south to Nicaragua (Montoya, Ldpez & L6pez, 1987). Length: 50.3 mm (Draper, 1987).

Subgenus Petricolaria Stoliczka, 1870

— Petricola (P.) amygdalina Sowerby, 1834. Distribution: 3°S-2°N, including the Islas Galdpagos, Ecuador. Depth: intertidal zone to 10 m (Bernard, 1983a).

478 Petricola (P.) cognata C.B. Adams, 1852. Extend distribution north to Laguna de Topolobampo, Sinaloa, Mexico (Garcia-Cubas & Reguero, 1987).

480 Petricola (P. ) gracilis Deshayes, 1853. Synonym: Petricola gracilis parallela Pilsbry & Lowe, 1932 (Bernard, 1983a). Extend distribution south to Los Santos Province, Panama (Garcia & Pelesca, 1984). Length: 74.1 mm (Draper, 1987). Extend distribution south to Guayas, Ecuador (Skoglund, 1990b).

Genus Rupellaria Fleuriau de Bellevue, 1802 Raised to genus (Abbott, 1974) (Woodring, 1982).

— Rupellaria carditoides (Conrad, 1837). Length:

40 mm. Depth: intertidal zone to offshore. Distribution: Vancouver Island, British

Columbia, Canada, to Bahia Magdalena, Baja California Sur, Mexico (McLean, 1978). Delete. Distribution (28°N-57°N) is north of the Panamic Province (Bernard, 1983a).

481 Rupellaria denticulata (Sowerby, 1834). Length: 34.2 mm (Draper, 1987).

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482 Rupellaria olssoni Bernard, 1983. Synonym: Petricola (P.) peruviana Olsson, 1961, non Venerupis peruviana Jay, 1839 (Bernard, 1983a).

483 Rupellaria typica (Jonas, 1844). Synonyms: Petricola robusta Sowerby, 1834; P. riocaensis Maury, 1917. Distribution: both sides of Central America (Woodring, 1982). Add synonym: Petricola venusta Folin, 1867 (Bernard, 1983a). Length: 41.5 mm (Draper, 1987).

Superfamily MACTRACEA Family MACTRIDAE Genus Mactra Linnaeus, 1767 Subgenus Mactra, s. s.

486 Mactra (M.) williamsi Berry, 1960. Distribution: 2°S-14°N (Bernard, 1983a). Holotype figured (Hertz, 1984).

Subgenus Mactrodemia Dali, 1894

488 Mactra (M. ) velata Philippi, 1849. Distribution: 1°S-19°N, including the Islas GaHpagos, Ecuador (Bernard, 1983a). Length: 116 mm (Draper, 1987).

Subgenus Mactrotoma Dali, 1894

489 Mactra (M.) dolabriformis (Conrad, 1867). Delete here. Subgenus changed. See Mactra (Simomactra).

490 Mactra (M.) nasuta Gould, 1851. Distribution restricted to 6°N-34°N (Bernard, 1983a).

Subgenus Micromactra Dali, 1894

491 Mactra (M.) angusta Reeve, 1854. Extend distribution north to San Bias, Nayarit, Mexico. Length: 48.1 mm (Draper, 1987).

492 Mactra (M.) califomica Conrad, 1837. Extend distribution south to Tumbes, Peru (Pena, 1971). Add synonym: Mactra ovalina Reeve, 1854 (Bernard, 1983a).

493 Mactra (M.) fonsecana Hertlein & Strong, 1950. Include the Islas GaHpagos, Ecuador, in distribution (Finet, 1985).

495 Mactra (M.) vanattae Pilsbry & Lowe, 1932. Extend distribution south to Paita, Piura Province, Peru (Pena, 1971).

Subgenus Simomactra Dali, 1894

489 Mactra (S.) dolabriformis (Conrad, 1867). "The type species of Simomactra Dali, 1894; doubtfully to be distinguished from Mactrotoma by having a smaller pallial sinus" (Keen & Coan, 1975). Length: 96.7 mm (Draper, 1987).

— Mactra (S.) hoffstetteri Cauquoin, 1969. Distribution: 1°N (Bernard, 1983a).

Genus Harvella Gray, 1853

498 Harvella elegans (Sowerby, 1825). Add synonyms: Mactra estrellana Olsson, 1922; Mactra sanctiblasii Maury, 1925. Subspecies: Harvella elegans tucilla Olsson, 1932 (Woodring, 1982). Length: 76 mm (Draper, 1987).

Genus Mactrellona Marks, 1951

499 Mactrellona carinata (Lamarck, 1818). Extend range south to Tumbes, Peru (as M. alata) (Pena, 1971). Synonym: Mactrellona alata Spengler, auctt., non Spengler, 1802 (Bernard, 1983a).

501 Mactrellona exoleta (Gray, 1837). Include the Islas GaHpagos, Ecuador, in distribution (Bernard, 1983a). Length: 129.6 mm (Draper, 1987).

Genus Mulinia Gray, 1837

503 Mulinia coloradoensis Dali, 1894. Delete Mulinia modesta Dali, 1894, as synonym (Bernard, 1983a). Length: 63.4 mm (Draper, 1987).

504 Mulinia pallida (Broderip & Sowerby, 1829). Add synonyms: Mulinia densata Conrad, 1856; Mactra carinulata Reeve, 1854; Mulinia modesta Dali, 1894; M. camina Pilsbry & Olsson, 1941 (Bernard, 1983a).

Genus Raeta Gray, 1853

505 Raeta undulata (Gould, 1851). Extend distribution south to near Caleta Chipana, Chile (21°S) (Tomicic-K., 1978). Synonym: Raeta gibbosa Gabb, 1869 (Bernard, 1983a).

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Genus Rangia DesMoulins, 1832 Subgenus Rangianella Conrad, 1863

506 Rangia (R.) mendica (Gould, 1851). Add synonym: Gnathodon lecontei Conrad, 1853 (Bernard, 1983a). Length: 36.4 mm (Draper, 1987).

Genus Spisula Gray, 1837

— Spisula planulata (Conrad, 1837). As subgenus Mactromeris. Distribution: Monterey Bay, California, to Cabo San Lucas, Baja California Sur, Mexico. Depth: intertidal zone to 91 m (Hertlein & Grant, 1972).

Superfamily TELLINACEA In line 1 of the definition of the Tellinacea, delete "never with a chondrophore" and substitute, "never with any inverted V-shaped cardinal teeth" (Keen & Coan, 1975).

Family TELLINIDAE Genus Tellina Linnaeus, 1758 Subgenus Angulus Megerle, 1811

508 Tellina (A.) amianta Dali, 1900. Include the Islas GaHpagos, Ecuador, in distribution (Bernard, 1983a). Holotype figured. Extend distribution to San Felipe, Baja California, Mexico. Shell and hinge figured (Hertz, Myers & Gemmell, 1984).

509 Tellina (A.) carpenteri Dali, 1900. Lectotype figured. Valve interiors figured. Add synonym: Angulus variegatus Carpenter, 1864, non Tellina variegata Gmelin, 1791. Depth: intertidal zone to 500 m (Coan, 1971).

512 Tellina (A.) coani Keen, 1971. Holotype figured. Interior of valves and hinge figured. Extend distribution to Playa Alicia, near San Felipe, Baja California, Mexico (Gemmell, Myers & Hertz, 1983). Depth: 30 m (F. & L. Poorman, 1988).

513 Tellina (A.) felix Hanley, 1844. Extend distribution north to Laguna de Guaymas, Sonora (Garcia-Cubas & Reguero, 1987). Extend distribution north to Bahia San Carlos, Sonora, Mexico. Depth to 90 m (F. & L. Poorman, 1988).

515 Tellina (A.) hibema Hanley, 1844. Lectotype figured. Intertidal zone near San Felipe, Baja California, Mexico (Hertz, Myers & Gemmell,

1984).

517 Tellina (A.) meropsis Dali, 1900. Lectotype figured. Valve interiors figured. Add synonym: Angulus gouldii Carpenter, 1864, ex Hanley MS, non Tellina gouldii Hanley, 1846. Distribution: Pacific Grove, California; the west coast of Baja California; the Gulf of California, Mexico, and south to Santa Elena, Ecuador. Depth: intertidal zone to 48 m (Coan, 1971). Length: 15.1 mm (Draper, 1987).

518 Tellina (A.) recurvata Hertlein & Strong, 1949. Length: 27 mm (Draper, 1987).

522 Tellina (A.) tumbezensis (Olsson, 1961). Extend distribution north to Panama (Avil6s-E., 1981).

Subgenus Elliptotellina Cossmann, 1888

523 Tellina (E.) pacifica Dali, 1900. Extend distribution south to the Islas GaHpagos, Ecuador (Finet, 1985). Length: 18 mm (Draper, 1987). Extend distribution across the Gulf of California to Bahia San Carlos, Sonora, Mexico. Depth: 20 to 35 m (F. & L. Poorman, 1988).

Subgenus Elpidollina Olsson, 1961

524 Tellina (E.) decumbens Carpenter, 1865. Add synonym: Angulus amplectans Carpenter, 1864, nom. nud. (Bernard, 1983a).

Subgenus Eurytellina Fischer, 1887

525 Tellina (E.) ebumea Hanley, 1844. Add synonym: Tellina (E.) ebumea askoyana Hertlein & Strong, 1955 [526]. Distribution: 5°S-14°N (Bernard, 1983a). Extend distribution north to Nayarit, Mexico (Reguero & Garcia- Cubas, 1989).

526 Tellina (E.) ebumea askoyana Hertlein & Strong, 1955. Delete. Becomes synonym of Tellina (E.) ebumea [525] (Bernard, 1983a).

527 Tellina (E.) ecuadoriana Pilsbry & Olsson, 1941. Extend distribution south to Tumbes, Peru (Pena, 1971). Extend distribution north to the Gulf of Fonseca, El Salvador (Hernandez, 1979).

528 Tellina (E.) hertleini (Olsson, 1961). Extend distribution south to Tumbes, Peru (Pena, 1971). Distribution: 3°S-13°N (Bernard, 1983a).

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— Tellina (E.) laplata Pilsbry & Olsson, 1941. Length: 60 mm. Distribution: Paita and Bayovar, Peru (Olsson, 1961).

531 Tellina (E.) mantaensis Pilsbry & Olsson, 1943. Extend distribution north to Guaymas, Sonora, Mexico. Length: 26.2 mm (Draper, 1987).

532 Tellina (E.) prora Hanley, 1844. Extend distribution north to San Felipe, Baja California, Mexico. Valve interiors and hinge figured (Gemmell, Myers & Hertz, 1987).

535 Tellina (E.) simulans C.B. Adams, 1852. Valve interiors figured (Gemmell, Myers & Hertz,

1987) . Length: 52.3 mm (Draper, 1987).

Subgenus Hertellina Olsson, 1961

536 Tellina (H.) nicoyana Hertlein & Strong, 1949. Distribution: 4°S-10°N (Bernard, 1983a).

Subgenus Laciolina Iredale, 1937

537 Tellina ( L .) ochracea Carpenter, 1864. Extend distribution south to Bahia Cocos, Costa Rica (Skoglund, 1990a).

Subgenus Lyratellina Olsson, 1961

538 Tellina (L.) lyra Hanley, 1844. Extend distribution to Bahia San Carlos, Sonora, Mexico. Depth to 35 mm (F. & L. Poorman,

1988) .

Subgenus Merisca Dali, 1900

540 Tellina (M.) brevirostris Deshayes, 1855.

Lectotype figured. Delete Merisca margarita Olsson, 1961, as synonym. Distribution: south of Puertecitos, Baja California, throughout the Gulf of California, Mexico, to the Islas

GaMpagos, Ecuador (Myers, Gemmell & Hertz, 1983). Length: 25.2 mm (Draper, 1987).

541 Tellina (M.) reclusa Dali, 1900. Extend

distribution into the Gulf of California at San Felipe, Baja California, Mexico. Lectotype figured. Synonym: Merisca margarita Olsson, 1961 (Myers, Gemmell & Hertz, 1983).

542 Tellina (M.) cristallina Spengler, 1798.

Synonyms: Tellina errati Pilsbry & Johnson, 1917; Merisca rhynchoscuta Olsson, 1961.

Distribution: Panama to Ecuador; Western Atlantic (Woodring, 1982). Exterior and

details of hinge figured (as T. rhynchoscuta ) (Gemmell, Myers & Hertz, 1987). Length: 27 mm (Draper, 1987).

543 Tellina (M.) ulloana Hertlein, 1968. Hinge dentition figured. Extend distribution north to the San Felipe area, Baja California, Mexico (Gemmell, Hertz & Myers, 1980).

Subgenus Peronidia Dali, 1900

— Tellina (P.) bodegensis Hinds, 1845. Synonym: Tellina (Peronidia) santarosae Dali, 1900. Lectotype figured. Distribution: British Columbia, Canada, to Bahia Magdalena, Baja California Sur, Mexico. Gulf of California records probably in error. Depth: intertidal zone to 96 m (Coan, 1971). Synonym: ?T. callamensis Reagan, 1908 (Bernard, 1983a). Length: 62.4 mm (Draper, 1987).

Subgenus Phyllodella Hertlein & Strong, 1949

544 Tellina (P.) insculpta Hanley, 1844. Extend distribution north to Nayarit, Mexico (Reguero & Garcia-Cubas, 1989).

Subgenus Phyllodina Dali, 1900

545 Tellina (P. ) fluctigera Dali, 1908. Distribution: 4°S-8°N. Depth: 45 to 333 m (Bernard, 1983a).

546 Tellina (P.) pristiphora Dali, 1900. Distribution: 10°N-28°N (Bernard, 1983a).

Subgenus Scissula Dali, 1900

550 Tellina (S.) virgo Hanley, 1844. Valve interiors and details of hinge figured. Extend distribution to San Felipe, Baja California, Mexico (Gemmell, Myers & Hertz, 1987).

Subgenus Tellinella Morch, 1853, ex Gray MS

551 Tellina (T.) cumingii Hanley, 1844. Synonym: Tellina argis Olsson, 1971 [551a]. Distribution: 9°N-25°N (Bernard, 1983a). Include Isla Gorgona, Colombia, in distribution (von Prahl, 1986). Length: 65.5 mm (Draper, 1987).

551a Tellina (T.) cumingii argis Olsson, 1971. Known from a single valve taken at Isla Gorgona, Colombia, 91 to 101 m (Olsson,

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1971). Delete. Becomes a synonym of Tellina (T.) cumingii Hanley, 1844 [551] (Bernard, 1983a).

552 Tellina (T.) zacae Hertlein & Strong, 1949. Distribution: 27°N-29°N (Bernard, 1983a).

Subgenus Tellinidella Hertlein & Strong, 1949

554 Tellina (T.) princeps Hanley, 1844. Correct Keen (1971) number from 544 (Keen & Coan, 1975). Length: 80.5 mm (Draper, 1987).

555 Tellina (T.) purpurea Broderip & Sowerby, 1829. Extend distribution south to Tumbes, Peru (Pena, 1971). Length: 65.9 mm (Draper, 1987).

Genus Leporimetis Iredale, 1930 Synonym: Florimetis Olsson & Harbison, 1953 (Coan, 1971).

556 Leporimetis asthenodon (Pilsbry & Olsson, 1932). Extend distribution south to Tumbes, Peru (Pena, 1971).

557 Leporimetis cognata (Pilsbry & Vanatta, 1902). Depth: 35 to 100 m (F. & L. Poorman, 1988).

558 Leporimetis dombei (Hanley, 1844). Include the Islas Galdpagos, Ecuador, in distribution (Finet, 1985).

— Leporimetis obesa (Deshayes, 1855). Lectotype figured. Interior of valves figured. Synonyms: Tellina turgida Deshayes, 1855; T. alta Conrad, 1837, non Conrad, 1833; Scrobicularia biangulata Carpenter, 1856. Distribution: Point Conception, California, to Bahia Magdalena, Baja California Sur, Mexico. Depth: intertidal zone to 46 m (Coan, 1971). Length: 112.3 mm (Wagner & Abbott, 1990).

Genus Cymatoica Dali, 1890 Raised from subgenus (Abbott, 1974).

559 Cymatoica undulata (Hanley, 1844). Include the Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a). Depth: 35 to 100 m (F. & L. Poorman, 1988).

Genus Macoma Leach, 1819 Subgenus Psammacoma Dali, 1900

561 Macoma (?P.) carlottensis (Whiteaves, 1880). Lectotype figured. Interior of valves figured. Distribution: Aleutian Islands, Alaska, to Islas Coronados, Baja California, and Isla Animas, Gulf of California, Mexico. Depth: 5 to 1547 m. Other records from Baja California Sur are in error (Coan, 1971).

562 Macoma (P.) elytrum Keen, 1958. Hinge dentition figured (Gemmell, Hertz & Myers, 1980). Lectotype of synonym Tellina elongata Hanley, 1844, figured. Interior of right valve of lectotype figured (Myers, Hertz & Gemmell, 1983a and 1983b). Length: 87.1 mm (Wagner & Abbott, 1990).

563 Macoma (P.) grandis (Hanley, 1844). Add Islas Galdpagos, Ecuador, to distribution (Bernard, 1983a). Length: 85 mm (Draper, 1987).

564 Macoma (P.) hesperus Dali, 1908. Delete. Known only from the holotype, which is from the Caribbean (Bernard, 1983a).

565 Macoma (P.) lamproleuca (Pilsbry & Lowe, 1932). Length: 101.8 mm (Wagner & Abbott, 1990).

— Macoma (P.) panamensis Dali, 1900. Valid species. Holotype figured. Type locality Bahia de Panama. Keen (1971) lower fig. 566 is this species (Gemmell, Myers & Hertz, 1984).

567 Macoma (P.) panamensis spectri Hertlein & Strong, 1949. Synonym: Macoma siliqua spectri Hertlein & Strong, 1949. Holotype figured. Holotype dentition figured (Gemmell, Myers & Hertz, 1984). Depth: 35 to 100 m (F. & L. Poorman, 1988).

566 Macoma (P.) siliqua (C.B. Adams, 1852). Extend distribution south to Esmeraldas, Ecuador. Depth: 90 m (Cruz-P., 1977). Synonym: Macoma (P.) siliqua spectri Hertlein & Strong, 1949. Distribution: 9°N-31°N. Depth: 20 to 150 m (Bernard, 1983a). Holotype shell and hinge figured. Holotype of synonym Thracia camea Morch, 1860, figured. Delete synonyms Macoma panamensis Dali, 1900, and M. siliqua spectri Hertlein & Strong, 1949. Keen (1971) fig. 566, lower, is Macoma panamensis Dali, 1900. Distribution: San Felipe, Baja California, Mexico, to Panama (Gemmell, Myers & Hertz, 1984). Length: 35.2 mm (Draper, 1987).

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Subgenus Rexithaerus Tryon, 1869, ex Conrad MS

568 Macoma (R.) indentata Carpenter, 1864. Lectotype figured. Valve interiors figured. Synonyms: Macoma (R.) indentata tenuirostris Dali, 1900; M. (R.) rickettsi Steinbeck & Ricketts, 1941, ex Rehder MS, nom. nud. Distribution: Trinidad, California, to and through the Gulf of California as far south as Isla Cerralvo, Baja California Sur; Guaymas, Sonora, Mexico. Depth: intertidal zone to 91 m (Coan, 1971). Length: 93.2 mm (Wagner & Abbott, 1990).

— Macoma (R.) secta (Conrad, 1837). Synonyms: Tellina ligamentina Deshayes, 1843; Macoma secta edulis Carpenter, 1860, ex Nuttall MS. Holotype and valve interiors figured. Length: 120 mm. Distribution: Vancouver Island, British Columbia, Canada, to Bahia Magdalena, Baja California Sur, Mexico. Depth: intertidal zone to 46 m. Specimens in collections from Acapulco and Oaxaca probably represent labeling errors (Coan, 1971). Extend distribution into the Gulf of California at Bahia San Carlos, Sonora, Mexico. Depth: 80 m (F. & L. Poorman, 1988).

Genus Psammotreta Dali, 1900 Subgenus Psammotreta, s. s.

569 Psammotreta (P.) aurora (Hanley, 1844). Add synonym: Tellina concinna Philippi, 1844. Extend distribution to the Islas Galdpagos, Ecuador (Bernard, 1983a). Length: 40 mm (Draper, 1987).

570 Psammotreta (P.) mazatlanica (Deshayes, 1855). Length: 42.5 mm (Draper, 1987). Extend distribution north to Isla Smith, Bahia de los Angeles, Baja California, Mexico. Depth: 183 m (Skoglund, 1988).

572 Psammotreta (P.) viridotincta (Carpenter, 1856). Synonym: Tellina casta Hanley, 1844 (Bernard, 1983a). Length: 79.3 mm (Wagner & Abbott, 1990).

Subgenus Ardeamya Olsson, 1961

573 Psammotreta (A.) columbiensis (Hanley, 1844). Extend distribution south to Tumbes, Peru (Pena, 1971).

Genus Strigilla Turton, 1822 Subgenus Strigillia, s. s.

575 Strigilla (S.) cicercula (Philippi, 1846). Synonym: S. interrupta Morch, 1860 [579]. Depth: 90 m (Cruz-P., 1977). Delete 5. interrupta as a synonym (Bernard, 1983a). Length: 11.7 mm (Draper, 1987).

576 Strigilla (S.) dichotoma (Philippi, 1846). Depth: 51 m (Cruz-P., 1977). Include the Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a).

577 Strigilla (S.) disjuncta (Carpenter, 1856). Extend distribution north to the Gulf of Fonseca, El Salvador (Herndndez, 1979).

Subgenus Pisostrigilla Olsson, 1961

579 Strigilla (P.) interrupta Morch, 1860. Regarded as a synonym of Strigilla cicercula (Philippi, 1846) [575] (Cruz-P., 1977), and as a valid species by Bernard (1983a)

Subgenus Simplistrigilla Olsson, 1961

580 Strigilla (S.) serrata Morch, 1860. Extend distribution north to Cabo Tepoca, Sonora, Mexico (Skoglund, 1974). Distribution: northern end of the Gulf of California, Mexico, south to Ecuador (Keen & Coan, 1975).

Genus Temnoconcha Dali, 1921

582 Temnoconcha cognata (C.B. Adams, 1852). Length: 48.1 mm (Draper, 1987). Extend distribution south to Guayas, Ecuador (Skoglund, 1990b).

Family DONACIDAE Classification follows Coan (1983a).

Genus Donax Linnaeus, 1758

583 Donax asper Hanley, 1845. Lectotype figured. Synonyms: Donax granifera Reeve, 1854, ex Deshayes MS; D. rostratus C.B. Adams, auctt., non C.B. Adams, 1852. Length: 42 mm. Distribution: Gulf of Fonseca, El Salvador, to Tumbes Province, Peru. Intertidal on sand beaches (Coan, 1983a).

— Donax assimilis Hanley, 1845. Lectotype figured. Synonyms: Donax panamensis Philippi,

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1849 [596]; D. cayennensis Lamarck, auctt., non D. caianensis Lamarck, 1818; D. curtus Sowerby, 1866; D. reevei Bertin, 1881. Length: 44 mm. Distribution: Gulf of Fonseca, El Salvador, to the Gulf of Guayaquil, Ecuador. Intertidal zone in sand (Coan, 1983a).

588 Donax dentifer Hanley, 1843. Extend distribution north to the Gulf of Fonseca, El Salvador (Herndndez, 1979). Lectotype figured. Delete ?Donax assimilis Hanley, 1845, as synonym. Length: 48 mm. Distribution: Guatemala to Guayas Province, Ecuador, intertidal zone in sand (Coan, 1983a). Extend distribution north to Tapachula, Chiapas, Mexico (Coan, 1985).

596 Donax panamensis Philippi, 1849. Delete. Becomes a synonym of Donax assimilis Hanley, 1845 (Coan, 1983a).

Subgenus Chion Scopoli, 1777

— Donax (C.) caelatus caelatus Carpenter, 1857. Lectotype figured. Synonym: Donax punctatostriatus ”var.” caelatus Carpenter, 1857. Length: 49 mm. Distribution: Bahia de las Animas, Baja California; Guaymas, Sonora, Mexico, to Golfito, Costa Rica. Depth: intertidal zone to 3 m (Coan, 1983a). Extend distribution south to Panama (Coan, 1985).

— Donax (C.) caelatus rothi Coan, 1983. Length: 22 mm. Distribution: Canoa, Manabl Province, Ecuador, to Punta Sal, Piura Province, Peru. Depth: intertidal zone to 3 m (Coan, 1983a).

586 Donax (C.) contusus Reeve, 1854. Delete. Becomes synonym of Donax culter Hanley, 1845 [587] (Coan, 1983a).

587 Donax (C.) culter Hanley, 1845. Lectotype figured. Synonyms: Donax contusus Reeve, 1854 [586]; D. conradi Reeve, 1854; D. bitinctus Reeve, 1855; D. califomicus Conrad, auctt., non Conrad, 1837. Delete as synonyms: D. petallina Reeve, 1854; D. petalina Deshayes, 1855 [in part]; Amphichaena gracilis Morch, 1860. Length: 47 mm. Distribution: Isla San Ignacio, Sonora, and La Paz, Baja California Sur, to Acapulco, Guerrero, Mexico. Depth: intertidal zone to 2 m (Coan, 1983a).

589 Donax (C.) ecuadorianus Olsson, 1961. Holotype figured. Length: 22 mm. Extend distribution north to Gulf of Fonseca, El

Salvador. Intertidal zone to 1 m (Coan, 1983a).

582 Donax (C.) mancorensis Olsson, 1961. Delete. Becomes synonym of Donax obesulus Reeve, 1854 [594] (Coan, 1983a).

594 Donax (C.) obesulus Reeve, 1854. Lectotype figured. Synonyms: Donax peruvianus Deshayes, 1855; D. radiatus Valenciennes, 1827; D. aricanus Dali, 1909; D. mancorensis Olsson, 1961 [592]; D. punctatostriatus Hanley, auctt., non Hanley, 1843. Delete as synonyms: IDonax granifera Reeve, 1854; D. curtus Sowerby, 1866. Length: 38 mm. Distribution: Canoa, Manabl Province, Ecuador, to Bahia Moreno, Antofagasta Province, Chile (Coan, 1983a).

595 Donax (C.) obesus Orbigny, 1845. Holotype figured. Synonym: Donax obesulus Reeve, auctt., non Reeve, 1854. Length: 15.2 mm. Distribution: Gulf of Fonseca, El Salvador, to Manabl Province, Ecuador (Coan, 1983a).

598 Donax (C.) punctatostriatus Hanley, 1843. Lectotype figured. Synonym: Donax sowerbyi Bertin, 1881. Delete as synonym: D. caelatus Carpenter, 1857. Length: 48 mm. Distribution: Isla Cedros; Laguna San Ignacio, Baja California Sur, and throughout the Gulf of California, to Manzanillo, Colima, Mexico. Intertidal zone to about 5 m (Coan, 1983a).

Subgenus Machaerodonax Romer, 1870

585 Donax (M.) carinatus Hanley, 1843. Holotype figured. Length: 52 mm. Distribution: Bahia Magdalena, Baja California Sur, and Altata, Sinaloa, Mexico, to Tumbes Province, Peru. Intertidal zone to 12 m (Coan, 1983a).

599 Donax (M.) transversus Sowerby, 1825. Length: 42 mm. Distribution: Altata, Sinaloa, Mexico, to Piura Province, Peru. Intertidal zone in sand (Coan, 1983a). Length: 47.3 mm (Draper, 1987).

Subgenus Amphichaena Philippi, 1847

600 Donax (A.) kindermanni (Philippi, 1847). Extend distribution south to the Gulf of Fonseca, El Salvador (Herndndez, 1979). Lectotype figured. Add synonym: Amphichaena gracilis Morch, 1860. Length: 48 mm. Distribution: Bahia Tenacatita, Jalisco, Mexico,

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to Gulf of Fonseca, El Salvador. Intertidal zone in sand (Coan, 1983a).

Subgenus Paradonax Cossmann, in Cossmann & Peyrot, 1911

584 Donax (P.) califomicus Conrad, 1837. Synonym: Donax navicula Hanley, 1845 [593]. Length: 33 mm. Distribution: Ventura County, California, to and throughout the Gulf of California, Mexico, and south to Tumbes Province, Peru. Intertidal zone to 10 m in fine sand (Coan, 1983a).

591 Donax (P.) gracilis Hanley, 1845. Lectotype figured. Length: 30.2 mm. Extend depth to 50 m (Coan, 1983a).

593 Donax (P.) navicula Hanley, 1845. Delete. Becomes synonym of Donax califomicus Conrad, 1837 [584] (Coan, 1983a).

Donax, s. 1.

590 Donax gouldii Dali, 1921. Holotype figured. Synonyms: Donax obesus Gould, 1851, non Orbigny, 1845; Donax obesus Philippi, 1851, non Orbigny, 1845; D. laevigatus Reeve, 1854, ex Deshayes MS; D. abmptus Carpenter, 1857, ex Gould MS, nom. nud. Length: 31.5 mm. Distribution: Marin County, California, to Arroyo Conejo, Baja California Sur; Isla Socorro, Islas Revillagigedo, Mexico. Intertidal zone to 5 m. Records from Mexican mainland are probably in error (Coan, 1983a).

— Donax marincovichi Coan, 1983. Synonyms: Donax radiatus Valenciennes, auctt., in part, non Valenciennes, 1827; D. peruvianus Deshayes, auctt., in part, non Deshayes, 1855. Length: 32 mm. Distribution: Salinas, Ecuador, to Tarapaca Province, Chile. Intertidal zone on sandy beaches (Coan, 1983a).

Genus Iphigenia Schumacher, 1817

601 Iphigenia altior (Sowerby, 1833). Lectotype figured. Length: 84 mm. Distribution: from Mazatldn, Sinaloa, Mexico, south. Not found in the Gulf of California. Depth: intertidal zone to 11 m (Coan, 1983a). Length: 87 mm (Draper, 1987).

Family PSAMMOBIIDAE Subfamily PSAMMOBIINAE Genus Gari Schumacher, 1817 Subgenus Gobraeus Brown, 1844, ex Leach MS As a genus (Hertlein & Grant, 1972).

— Gari (G.) califomica (Conrad, 1849). Synonym: Psammobia rubroradiata Carpenter, 1864, ex Nuttall MS. Holotype figured. Valve interior figured. Distribution: Shelikof Strait, Alaska, to Bahia Magdalena, Baja California Sur, Mexico. Depth: intertidal zone to 168 m (Coan, 1973b). Add synonym: Psammobia kazusensis Yokoyama, 1922 (Bernard, 1983a). Length: 148.6 mm (Draper, 1987).

602 Gari (G.) edentula (Gabb, 1869). Synonym: ?Tellina fucata Hinds, 1845. Holotype and valve interior figured. Distribution: near Santa Barbara, to San Pedro, California, and possibly to Bahia Magdalena, Baja California Sur, Mexico (type locality of Tellina fucata). Depth:

5 to 137 m in fine sand (Coan, 1973b). Length: 136.5 mm (Draper, 1987).

603 Gari (G.) helenae Olsson, 1961. Distribution: 4°N-29°S, intertidal zone (Bernard, 1983a). Extend distribution north to San Felipe, Baja California, and Guaymas, Sonora, Mexico. Holotype figured. Hinge with "chondrophore" and resilium figured (Myers, Gemmell & Hertz, 1984). Depth: 35 m (F. & L. Poorman, 1988).

606 Gari (G.) maxima (Deshayes, 1855). Length: 125 mm (Wagner & Abbott, 1990).

607 Gari (G.) panamensis Olsson, 1961. Holotype figured. No "chondrophore" (Myers, Gemmell

6 Hertz, 1984). Extend distribution south to Isla Gorgona, Colombia (von Prahl, 1986). Extend distribution north to Bahia San Carlos area, Sonora, Mexico. Depth: 20 to 35 m (F. & L. Poorman, 1988). Extend distribution south to Guayas, Ecuador (Skoglund, 1990b).

608 Gari (G.) regularis (Carpenter, 1864). Holotype figured. Distribution: Islas Coronados, Baja California, to Cabo San Lucas, Baja California Sur, Mexico, 18 to 37 m (Coan, 1973b). Holotype figured. No "chondrophore" or resilium (Myers, Gemmell & Hertz, 1984). Extend distribution into the Gulf of California in the Bahia San Carlos area, Sonora, Mexico. Intertidal zone (F. & L. Poorman, 1988). Length: 47.5 mm (Wagner & Abbott, 1990).

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Genus Heterodonax Morch, 1853

609 Heterodonax paciftcus (Conrad, 1837). Extend distribution south to Tumbes, Peru (Pena, 1971). Lectotype figured. Distribution: Point Conception, California, and the entire Panamic Province to Peru. Depth: intertidal zone (Coan, 1973b).

Subfamily SANGUINOLARIINAE Genus Sanguinolaria Lamarck, 1799 Subgenus Sanguinolaria, s. s.

610 Sanguinolaria (S.) ovalis Reeve, 1857. Length: 31 mm (Draper, 1987).

Genus Nuttallia Dali, 1908

— Nuttallia nuttallii (Conrad, 1837). Synonyms: Psammobia decora Hinds, 1852; Sanguinolaria grandis Carpenter, 1857, ex Gould MS; 5. orcutti Dali, 1921. Lectotype figured. Distribution: Bodega Bay, California, to Bahia Magdalena, Baja California Sur, Mexico. Intertidal zone of protected bays (Coan, 1973b). Length: 131 mm (Draper, 1987).

Subfamily SOLECURTINAE Orbigny, 1846 Genus Solecurtus Blainville, 1824

613 Solecurtus lineatus (Gabb, 1861). Synonym: Solecurtus broggii Pilsbry & Olsson, 1941. Distribution: 4°S-8°N (Bernard, 1983a).

614 Solecurtus guaymasensis Lowe, 1935. Extend distribution south to the Islas GaHpagos, Ecuador (Finet, 1985). Length: 60.6 mm (Draper, 1987).

Genus Tagelus Gray, 1847 Subgenus Tagelus, s. s.

615 Tagelus (T.) affinis (C.B. Adams, 1852). Lectotype figured. Distribution: Cayucos, California, to Ecuador. Intertidal in protected bays in mud, also reported to 73 m (Coan, 1973b). Include the Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a). Length: 62.8 mm (Draper, 1987).

616 Tagelus (T.) califomianus (Conrad, 1857). Lectotype figured. Distribution: Humboldt Bay, California, to Baja California, and throughout

the Gulf of California, Mexico. Intertidal in muddy sand of protected bays (Coan, 1973b). Length: 128.3 mm (Draper, 1987).

617 Tagelus (T.) dombeii (Lamarck, 1818). Synonym: Solecurtus coquimbensis Sowerby, 1874. Anatomy figured (Villarroel & Stuardo, 1977).

619 Tagelus (T.) longisinuatus Pilsbry & Olsson, 1932. Anatomy figured (Villarroel & Stuardo, 1977).

620 Tagelus (T.) peruanus (Dunker, 1862). Correct date (Keen & Coan, 1975).

621 Tagelus (T.) violascens (Carpenter, 1857). Delete the last sentence, line 5, beginning, "The figure..." (Keen & Coan, 1975).

Subgenus Mesopleura Conrad, 1868

622 Tagelus (M.) bourgeoisae Hertlein, 1951. Extend distribution south to Tumbes, Peru (Pena, 1971). Distribution: 3°S-29°N (Bernard, 1983a). Distribution confirmed to Yavaros, Sonora, Mexico (Garcia-Cubas & Reguero, 1987). Length: 49 mm (Draper, 1987).

623 Tagelus (M.) peruvianus Pilsbry & Olsson, 1971. Length: 80.1 mm (Draper, 1987).

624 Tagelus (M.) politus (Carpenter, 1857). Extend distribution south to Tumbes, Peru (Olsson, 1961). Correct date of synonym, Siliquaria nitidissima, to Dunker 1862 (Keen & Coan, 1975). Intertidal zone (Bernard, 1983a). Depth: 35 m (F. & L. Poorman, 1988). Include Islas GaHpagos in distribution (Coan, pers. comm., 1990).

Family SEMELIDAE Classification follows Coan (1988b)

Genus Semele Schumacher, 1817 Subgenus Semele, s. s.

625 Semele (S.) bicolor (C.B. Adams, 1852). Holotype figured. Delete Amphidesma striosum and A. ventricosum C.B. Adams, 1852, as synonyms. Extend distribution south to Peru. Length to 31.3 mm. Depth: intertidal zone to 20 m (Coan, 1988b).

626 Semele (S.) calif omica (Reeve, 1853, ex A. Adams MS). Lectotype figured. Distribution: Bahia San Luis Gonzaga, Baja California, to Bahia Santa Maria, Baja California Sur; Isla Venado, Bahia Algodones, to Guaymas,

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Sonora, Mexico. Length: to 42 mm (Coan, 1988b).

— Semele (S.) clydosa Bernard, 1983. Synonym: Amphidesma punctatum Sowerby, 1833, non Say, 1822. Distribution: Islas Galapagos. Depth: intertidal to 5 m (Bernard, 1983a). Delete. Becomes a synonym of Semele sowerbyi Tryon, 1869 [642] (Coan, 1988b).

627 Semele (S.) corrugata (Sowerby, 1833). Lectotype figured. Synonym: Amphidesma croceum Gould, 1850. Length: 97.8 mm. Restrict distribution to Ecuador and Peru. Depth: intertidal zone to 9 m (Coan, 1988b).

— Semele (S.) decisa (Conrad, 1837). Holotype figured. Synonyms: Amphidesma rubrolineatum Conrad, 1837; Semele rubrotincta Carpenter, "ex Conrad MS," 1857, nom. nud. Distribution: Santa Barbara County, California, to Cabo San Lucas, Baja California Sur, Mexico. Depth: intertidal zone to 46 m (Coan, 1973). Length: to 119.2 mm. Probably Bahia Magdalena, Baja California Sur, is southernmost record, as Cabo San Lucas record has not been verified in recent years (Coan, 1988b).

629 Semele (S.) elliptica (Sowerby, 1833). Extend distribution south to Tumbes, Peru (Pena, 1971). Lectotype figured. Distribution: Nicaragua to Ecuador (Coan, 1988b). Extend distribution north to Nayarit, Mexico (Reguero & Garcia-Cubas, 1989).

630 Semele (S.) flavescens (Gould, 1851). Distribution: throughout the Gulf of California, Mexico, and south to Peru (Keen & Coan, 1975). Holotype figured (Gemmell, Myers & Hertz, 1987). Type locality corrected from San Diego, California, to Guaymas, Sonora, Mexico. Length: to 69 mm. Distribution: Isla Magdalena, Baja California Sur, throughout the Gulf of California, Mexico, to Peru. Depth: intertidal zone to 5 m (Coan, 1988b).

636 Semele (S.) lenticularis (Sowerby, 1833). Extend distribution north to Bahia de los Angeles, Baja California, Mexico (F. & L. Poorman, 1978). Extend distribution north to Puertecitos, Baja California, Mexico (Gemmell, Myers & Hertz, 1987). Synonym: Amphidesma ventricosum C.B. Adams, 1852. Holotype figured. Length: to 30.3 mm. Include entire Gulf of California, Mexico, in distribution. Depth: intertidal zone to 44 m (Coan, 1988b).

640 Semele (S.) pilsbryi Olsson, 1961. Holotype figured. Length: to 53.7 mm. Distribution: Guaymas, Sonora, Mexico, to Ecuador. Depth: intertidal zone to 18 m (Coan, 1988b).

— Semele (S.) rubropicta Dali, 1871. Lectotype figured. Synonym: Semele ashleyi Hertlein & Grant, 1972. Length: 52 mm. Distribution: Bahia Willard, Baja California, and possibly Guaymas, Sonora, in the Gulf of California, Mexico; Alaska to Isla Asunci6n on the Pacific coast of Baja California Sur, Mexico. Depth: intertidal zone to 55 m (Coan, 1988b).

642 Semele (S.) sowerbyi Tryon, 1869. Synonyms: Amphidesma punctatum Sowerby, 1833, non Say, 1822; S. clydosa Bernard, 1983 (Coan, 1988a). Lectotype of synonym, Amphidesma punctatum, figured. Length: 59.6 mm. Distribution restricted to the Islas Galdpagos, Ecuador. Depth: intertidal zone to 13 m (Coan, 1988b). 650 Semele (S.) tortuosa (C.B. Adams, 1852). Holotype figured. Length: 56.2 mm. Extend distribution south to Puerto Parmar, Guayas Province, Ecuador. Depth: intertidal to 55 m (Coan, 1988b). Depth: 100 m (F. & L. Poorman, 1988).

Subgenus Amphidesma Lamarck, 1818

628 Semele (A.) craneana Hertlein & Strong, 1949. Holotype figured. Length: 42 mm. Distribution: Roca Consag, in the upper Gulf of California; Isla Smith, Bahia de los Angeles, Baja California, to Los Frailes, Baja California Sur; Punta San Antonio, Sonora, on the Mexican mainland; Isla Clari6n, Islas Revillagigedo, Mexico. Depth: 32 to 110 m (Coan, 1988b).

631 Semele (A.) formosa (Sowerby, 1833). Synonym: Semele verruculastra [653] (Coan, 1983b). Lectotype figured. Length: to 77 mm. Distribution: Isla San Pedro Martir, Gulf of California, Mexico, to Santa Elena, Ecuador; Isla del Coco, Costa Rica. Depth: 1.5 to 68 m (Coan, 1988b).

638 Semele (A.) pallida (Sowerby, 1833). Synonyms: Semele paziana Hertlein & Strong, 1949 [639]; 5. simplicissima Pilsbry & Lowe, 1932 [647]; 5. regularis Dali, 1915, non Smith, 1885 . Lectotype figured. Length: 41.1 mm. Distribution: Gulf of California as far north as Bahia San Carlos, Sonora, and Bahia

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Concepci6n, Baja California Sur, Mexico, to Tumbes Province, Peru. Depth: 13 to 128 m (Coan, 1988a).

639 Semele paziana Hertlein & Strong, 1949. Delete. Becomes synonym of Semele pallida (Sowerby, 1833) [638] (Coan, 1988a).

649 Semele (A.) purpurascens (Gmelin 1791). Synonym: Semele sparsilineata Dali, 1915. Distribution includes the Caribbean (Coan, 1988a). Add synonyms: Tellina obliqua Wood, 1815; Amphidesma variegata Lamarck, 1818. Lectotype of Semele sparsilineata figured. Length: 33.5 mm. Distribution: Bahia San Carlos, Sonora, Mexico, south to Ecuador, including the Islas Galdpagos; Isla del Coco, Costa Rica; western Atlantic. Depth: intertidal zone to 78 m (Coan, 1988b).

647 Semele simplicissima Pilsbry & Lowe, 1932. Delete. Becomes synonym of Semele pallida (Sowerby, 1833) [638] (Coan, 1988a).

651 Semele (A.) venusta (Reeve, 1853, ex A. Adams, MS). Synonym: Semele incongrua Carpenter, 1864 (Coan, 1988a). Add synonym: Semele pulchra "var." montereyi Arnold, 1903. Lectotype figured. Length: 27.8 mm. Distribution: Monterey, California, and into the Gulf of California as far north as Isla Angel de la Guarda, Mexico, and south to Peru; Islas Galdpagos, Ecuador. Depth: 10 to 183 m (Coan, 1988b).

653 Semele verruculastra Keen, 1966. Delete. Becomes a synonym of Semele formosa (Sowerby, 1833) [631] (Coan, 1983b).

Subgenus Elegantula de Gregorio, 1884

— Semele (E.) rupicola Dali, 1915. Synonym: Amphidesma rupium (Sowerby), auctt., non (Sowerby, 1833). Lectotype figured. Distribution: South Farallon Island, California, to Cabo San Lucas, Baja California Sur, Mexico. Depth: intertidal zone to 27 m (Coan, 1973a). Lectotype figured. Length: 71.4 mm. Probably occurs no farther south than Bahia Magdalena, Baja California Sur, Mexico, as Cabo San Lucas record not verified in recent years. Depth: intertidal zone to 83 m (Coan, 1988b).

646 Semele (E.) rupium (Sowerby, 1833). Lectotype figured. Add Isla del Coco, Costa Rica, to distribution. Depth: 1 to 73 m (Coan, 1988b).

Semele, s. 1.

648 Semele barbarae (Boone, 1928). Synonyms: Semele sowerbyi Lamy, 1912, non Tryon, 1869; S. purpurascens (Sowerby, 1833), non (Gmelin, 1791) (Coan, 1988a). Neotype figured. Length: 48.5 mm. Distribution: Guerrero, Mexico, to Guayas Province, Ecuador. Depth: 27 to 101 m (Coan, 1988b). Extend distribution north to Isla San Marcos, Gulf of California, Mexico (Hertz, 1991).

632 Semele guaymasensis Pilsbry & Lowe, 1932.

Lectotype figured. Length: 27.8 mm. Distribution: Puerto Penasco, Sonora,

throughout the Gulf of California, and south to Bahia Chamela, Jalisco, Mexico. Depth: intertidal zone to 110 m (Coan, 1988b).

— Semele jamesi Coan 1988. Holotype figured. Length: 7.3 mm. Distribution: throughout the Gulf of California, Mexico, and south to Ecuador. Depth: 5 to 161169 m (Coan, 1988b).

633 Semele jovis (Reeve, 1853, ex A. Adams MS). Extend distribution north to between San Felipe and Roca Consag, Gulf of California, Mexico (Gemmell, Myers & Hertz, 1987). Synonym: ?Tellina lamellata Carpenter, 1857. Delete as synonym: ?Tellina barbarae Boone, 1928. Holotype figured. Length: 71.4 mm. Distribution: Bahia de Adair, Sonora, Mexico, to Puntarenas Province, Costa Rica. Depth: intertidal zone to 55 m (Coan, 1988b). Depth: 35 to 100 m (F. & L. Poorman, 1988).

634 Semele junonia (Verrill, 1870). Delete. Becomes synonym of Semele rosea (Sowerby, 1833) [644] (Coan, 1988a).

635 Semele laevis (Sowerby, 1833). Distribution: Mazatldn, Sinaloa, Mexico, to Ecuador (Keen & Coan, 1975). Add synonym: Semele laevis costaricensis Olsson, 1922. Length: 89.0 mm. Extend distribution north to Guaymas, Sonora, Mexico, and south to Peru. Depth: intertidal to 27 m (Coan, 1988b).

641 Semele pulchra (Sowerby, 1832). Lectotype figured. Synonym: Semele quentinensis Dali, 1921 [643]. Distribution: Point Mugu,

California, to Peru. Depth: intertidal zone to 46 m. (Coan, 1973a). Add synonyms: Amphidesma striosum C.B. Adams, 1852; ?Mesodesma rubrotincta Gould, 1857, ex "Sowerby" MS, nom. nud. Length: 31.9 mm.

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Depth: intertidal to 110 m (Coan, 1988b).

643 Semele quentinensis Dali, 1921. Delete. Becomes synonym of Semele pulchra (Sowerby, 1832) [641] (Coan, 1988b).

644 Semele rosea (Sowerby, 1833). Synonyms:

Semele junonia (Verrill, 1870) [634]; 5.

tabogensis Pilsbry & Lowe, 1932 [645] (Coan, 1988a). Add synonyms: ?Tellina regularis Carpenter, 1857; Semele leana Dali, 1900. Lectotype figured. Length: 84.8 mm. Distribution: Bahia Magdalena, Baja California Sur, into the Gulf of California as far north as Bahia de los Angeles, Baja California, and Bahia San Carlos, Sonora, Mexico, and south to Peru. Depth: intertidal zone to 113 m (Coan, 1988b).

645 Semele tabogensis Pilsbry & Lowe, 1932. Delete. Becomes synonym of Semele rosea (Sowerby, 1833) [644] (Coan, 1988a).

652 Semele verrucosa verrucosa Morch, 1860. Synonym: Semele guaymasensis Pilsbry & Lowe, auctt, non Pilsbry & Lowe, 1932. Lectotype figured. Length: 23.7 mm. Distribution: Nicaragua to Panama. Depth: intertidal zone to 23 m (Coan, 1988b).

637 Semele verrucosa pacifica Dali, 1915. Synonyms: Semele jaramija Pilsbry & Olsson, 1941; S. hertleini Durham, 1950. Holotype of S. pacifica, figured. Length: 26.6 mm. Distribution: Isla Cedros, Baja California, throughout the Gulf of California, and south to Oaxaca, Mexico. Depth: intertidal to 128 m (Coan, 1988b).

Genus Abra Lamarck, 1818, ex Leach MS Subgenus Abra, s. s.

— Abra (A.) californica Knudsen, 1970. Length: 20.8 mm. Distribution: southern Baja California, Mexico. Depth: 3481 to 3518 m (Knudsen, 1970).

Abra, s. 1.

Keen numbers 654 & 655 belong here (Bernard, 1983a).

654 Abra palmeri Dali, 1915. As a synonym of A. tepocana Dali, 1915 [655] (Abbott, 1974). A valid species (Bernard, 1983a).

655 Abra tepocana Dali, 1915.

Genus Cumingia Sowerby, 1833

656 Cumingia adamsi Olsson, 1961, ex Carpenter MS. Add MS (Keen & Coan, 1975).

657 Cumingia lamellosa Sowerby, 1833. Include the Islas Galapagos, Ecuador, in distribution (Finet, 1985). Length: 21.3 mm (Draper, 1987).

659 Cumingia pacifica (Dali, 1915). Distribution: north end of the Gulf of California to Guaymas, Sonora, Mexico (Keen & Coan, 1975).

Genus Semelina Dali, 1900

661 Semelina subquadrata (Carpenter, 1857). Depth: 35 m (F. & L. Poorman, 1988).

Superfamily SOLENACEA Family SOLENIDAE

Genus Solen Linnaeus, 1758 Correct author from Scopoli, 1777 (Keen & Coan, 1975).

Subgenus Solen, s. s.

665 Solen (S.) pazensis Lowe, 1935. Distribution: 16°N-29°N (Bernard, 1983a). Delete. Becomes synonym of Solen pfeifferi Dunker, 1862 [666] (Gemmell, Myers & Hertz, 1987).

666 Solen (S.) pfeifferi Dunker, 1862. Extend distribution south to Tumbes, Peru (Pena, 1971). Synonym: Solen pazensis Lowe, 1935 [665]. Extend distribution north to San Felipe, Baja California, Mexico (Gemmell, Myers & Hertz, 1987).

667 Solen (S.) rosaceus Carpenter, 1864. Depth: intertidal to 46 m (Hertlein & Grant, 1972).

Subgenus Solena MOrch, 1853

668 Solen (S.) obliquus rudis (C.B. Adams, 1852). Treated as a subspecies of the Caribbean Solen (S.) obliquus Spengler, 1794. Length: 160 mm (Woodring, 1982).

Family CULTELLIDAE Davies, 1935 Genus Ensis Schumacher, 1817

669 Ensis nitidus (Clessin, 1888). Synonym: Ensis califomicus Dali, 1899. Restrict distribution to 25°N-30°N (Bernard, 1983a). Extend the

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distribution north to San Felipe, Baja California, Mexico. Valve interior figured (Gemmell, Myers & Hertz, 1987). Length: 89 mm (Draper, 1987).

Order MYOIDEA Suborder MYINA Superfamily MYACEA Family MYIDAE Genus Cryptomya Conrad, 1848

671 Cryptomya califomica (Conrad, 1837). Add synonyms: Cryptomya oregonensis Dali, 1919; C. quadrata Arnold, 1909; C. washingtoniana Weaver, 1912; C. busoensis Yokoyama, 1922; Mya inopia Hanna, 1924; Cryptomya kamtschatica Ilyina, 1963. Add northwest Pacific to distribution (Bernard, 1983a).

Genus Sphenia

673 Sphenia luticola (Valenciennes, 1846). Synonyms: Sphenia fragilis (H. & A. Adams, 1856); S. trunculus Dali, 1916; S. pholadidea Dali, 1916; Cuspidaria nana Oldroyd, 1918. Include the Islas Galdpagos, Ecuador, in distribution. Depth: 10 to 55 m (Bernard, 1983a). Valve exterior and detail of ligament figured (Gemmell, Myers & Hertz, 1987).

Family CORBULIDAE Genus Corbula Brugui6re, 1797 Subgenus Caryocorbula Gardner, 1926

675 Corbula (C.) luteola Carpenter, 1864. As subgenus Lentidium Cristofori & Jan, 1832. Add synonym: C. luteola rosea Williamson, 1905, non Reeve, 1844 (Hertlein & Grant, 1972). Distribution: Monterey, California, to the Gulf of California, Mexico (McLean, 1978). In lagoons along the Sonoran coast of Mexico from Guaymas to Agiabampo (Garcia-Cubas & Reguero, 1987).

676 Corbula (C.) marmorata Hinds, 1843. Distribution: 2°S-28°N (Bernard, 1983a). Depth: 35 m (F. & L. Poorman, 1988).

677 Corbula (C.) nasuta Sowerby, 1833. Depth: 90 m (Cruz-P., 1977).

678 Corbula (C.) nuciformis Sowerby, 1833. Extend distribution north to near Santa Rosalia, Baja

California Sur, Mexico (Draper, 1972). Extend distribution south to Peru (Abbott, 1974). Extend distribution across Gulf of California to Bahia San Carlos, Sonora, Mexico (F. & L. Poorman, 1988).

680 Corbula (C.) ovulata Sowerby, 1833. Length: 25.8 mm (Draper, 1987).

681 Corbula (C.) porcella Dali, 1916. Extend distribution south to Esmeraldas, Ecuador (Cruz-P., 1977). Bernard (1983a) restricts distribution from 17°N to 33°N.

Subgenus Hexacorbula Olsson, 1932

683 Corbula (H.) esmeralda Olsson, 1961. Depth: 47 m (Cruz-P., 1977).

Subgenus Juliacorbula Olsson & Harbison, 1953

684 Corbula (J.) bicarinata Sowerby, 1833. Extend distribution south to Peru (Abbott, 1974). Depth to 9 m (Cruz-P., 1977). Include the Islas Galdpagos, Ecuador, in distribution (Bernard, 1983a).

685 Corbula (J.) biradiata Sowerby, 1833. Extend distribution south to Peru (Abbott, 1974). Include the Islas GaHpagos, Ecuador, in distribution (Bernard, 1983a).

— Corbula (J.) ecuabula Pilsbry & Olsson, 1941. Length: 18 mm. Distribution: Punta Blanca, Ecuador, to Zorritos, Peru (Olsson, 1961).

686 Corbula (J.) elenensis (Olsson, 1961). Depth: 43 to 90 m (Cruz-P., 1977).

687 Corbula (J.) ira Dali, 1908. Extend distribution north to near Santa Rosalia, Baja California Sur, Mexico (Draper, 1972). Extend distribution south to Esmeraldas, Ecuador. Depth: 47 m (Cruz-P., 1977). Extend distribution north to Bahia de los Angeles, Baja California, Mexico (F. & L. Poorman, 1978). Extend distribution across the Gulf of California to Bahia San Carlos, Sonora, Mexico (F. & L. Poorman, 1988).

Subgenus Serracorbula Olsson, 1961

690 Corbula (S.) tumaca (Olsson, 1961). Extend distribution north to the Gulf of Fonseca, El Salvador (Herndndez, 1979).

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Subgenus Tenuicorbula Olsson, 1932

691 Corbula (T.) tenuis Sowerby, 1833. Distribution: 3°S-8°N (Bernard, 1983a).

Subgenus Varicorbula Grant & Gale, 1931

692 Corbula (V.) speciosa Reeve, 1843. Extend distribution across the Gulf of California to Bahia San Carlos, Sonora, Mexico. Depth: 20 to 35 m (F. & L. Poorman, 1988).

Family SPHENIOPSIDAE Genus Spheniopsis Sandberger, 1861

— Spheniopsis frankbemardi Coan, 1990. Length: 3.2 mm. Distribution: Punta San Pablo, on the Pacific coast of Baja California Sur, to Cabo San Lucas; into the Gulf of California as far north as Puertecitos, Baja California, Mexico, and south to Playas del Coco, Guanacaste Province, Costa Rica. Depth: 13 to 91 m (Coan, 1990b).

Genus Grippina Dali, 1912

693 Grippina californica Dali, 1912. Synonym: Grippina berryana Keen, 1971. Holotype and hinge figured. Distribution: Santa Barbara County, California, to Isla Cedros, Baja California; in the Gulf of California as far north as Punta Gorda, Baja California Sur, Mexico, to Isla del Cano, Puntarenas Province, Costa Rica. Depth: intertidal zone to 42 m (Coan, 1990b).

Superfamily GASTROCHAENACEA Family GASTROCHAENIDAE Genus Gastrochaena Spengler, 1783

— Gastrochaena denticulata Deshayes, 1855.

Distribution: 12°S-6°N, intertidal zone (Bernard, 1983a).

694 Gastrochaena ovata Sowerby, 1834. Anatomy

figured. Add tropical west Atlantic to distribution (Carter, 1978). Add synonym: Gastrochaena hyalina Sowerby, 1834.

Distribution: 1°S-28°N, including L’ile

Clipperton, (France), the Islas GaHpagos, Ecuador; Atlantic (Bernard, 1983a).

695 Gastrochaena rugulosa Sowerby, 1834. Occurrence in the Islas GaMpagos, Ecuador, doubtful (Finet, 1985). Extend distribution north to Bahia San Carlos, Sonora, Mexico. Depth: 20 m (F. & L. Poorman, 1988).

696 Gastrochaena truncata Sowerby, 1834. Synonym: Gastrochaena folini Deshayes in Folin, 1867 (Bernard, 1983a).

Superfamily HLATELLACEA Family HLATELLIDAE Genus Hiatella Bose, 1802, ex Daudin MS

697 Hiatella arctica (Linnaeus, 1767). Synonym: Hiatella solida (Sowerby, 1834) [698] and ca. 50 others worldwide. A cosmopolitan species that reaches an extreme size of ca. 70 mm in the arctic (Beu, 1971).

698 Hiatella solida (Sowerby, 1834). Delete. Becomes a synonym of Hiatella arctica (Linnaeus, 1767) [697] (Beu, 1971).

Suborder PHOLADINA Superfamily PHOLADACEA Family PHOLADIDAE Subfamily PHOLADINAE Genus Pholas Linnaeus, 1758 Subgenus Thovana Gray, 1847, ex Leach MS

700 Pholas (T.) chiloensis Molina, 1782. Changed from subgenus Pholas. Add synonym: P. macrostoma Philippi, 1858 (Bernard, 1983a).

Genus Bamea Risso, 1826 Subgenus Anchomasa Leach, 1852

701 Bamea (A.) subtruncata (Sowerby, 1834). Add synonym: Pholas spathulata Deshayes, 1843. Add subgenus (Kennedy, 1974). Distribution confirmed north in the Gulf of California to San Felipe, Baja California, Mexico (Gemmell, Myers & Hertz, 1987).

Genus Cyrtopleura Tryon, 1862

702 Cyrtopleura crucigera (Sowerby, 1834).

Synonyms: C. "crucifer a," auett., nom. null.-, C. exilis (Tryon, 1870) (Abbott, 1974).

Genus Zirfaea Gray, 1842, ex Leach MS

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— Zirfaea pilsbryii Lowe, 1931. Length: 120 mm. Distribution: Arctic coast of Alaska to Bahia Magdalena, Baja California Sur, Mexico (Kennedy, 1974). Depth: intertidal zone to 125 m (Bernard, 1983a).

Subfamily JOUANNETIINAE Genus Jouannetia DesMoulins, 1828 Subgenus Jouannetia, s. s.

703 Jouannetia (J.) duchassaingi Fischer, 1862. Extend distribution north to Playa Naranjo, Costa Rica (Kemperman, 1990).

Genus Pholadopsis Conrad, 1849 Raised from subgenus (Kennedy, 1974).

704 Pholadopsis pectinata (Conrad, 1849). Distribution: Isla Cedros, Baja California, through the Gulf of California, Mexico, and south to Peru (Kennedy, 1974).

Subfamily MARTESIINAE Genus Martesia Sowerby, 1824 Subgenus Martesia, s. s.

706 Martesia (M.) fragilis Verrill & Bush, 1898. Add synonym: Pholadidea (Diploplax) exquisita Bartsch & Rehder, 1945; P. (D.) bahamensis Bartsch & Rehder, 1945. Distribution: 9°N-20°N; also in Atlantic Ocean (Bernard, 1983a).

705 Martesia (M.) striata (Linnaeus, 1758). Add synonyms: Pholas clavata Lamarck, 1818; P. tenuistriata Blainville, 1826; P. rosea C.B. Adams, 1850; P. cupula Yokoyama, 1924; Martesia striata tokyoensis Yokoyama, 1927; M. pulchella Yokoyama, 1932; M. hawaiiensis Dali, Bartsch & Rehder, 1938; Mesopholas intusgranosa Take & Habe, 1945; M. nucicola Take & Habe, 1945; Martesia ( Diploplax ) funiscola Bartsch & Rehder, 1945; M. (D.) americana Bartsch & Rehder, 1945. Cosmopolitan in warm waters (Bernard, 1983a).

Subgenus Particoma Bartsch & Rehder, 1945

707 Martesia (P.) cuniformis (Say, 1822). Add Islas GaMpagos, Ecuador, to distribution (Keen & Coan, 1975). Synonym: Pholas caribaea Orbigny, 1842. Add subgenus (Bernard, 1983a).

Genus Diplothyra Tryon, 1862

708 Diplothyra curta (Sowerby, 1834). Distribution restricted 17°N-30°N (Bernard, 1983a). Valve interior and exterior figured (Gemmell, Myers & Hertz, 1987).

Genus Parapholas Conrad, 1848

710 Parapholas calva (Sowerby, 1834). Distribution: 1°S-29°N, including the Islas GaMpagos, Ecuador. Intertidal zone (Bernard, 1983a). Depth: 35 m (F. & L. Poorman, 1988).

Subfamily XYLOPHAGAINAE Genus Xylophaga Turton, 1822

— Xylophaga globosa Sowerby, 1835. Distribution: Panama to Chile (Kennedy, 1974).

715 Xylophaga mexicana Dali, 1908. Distribution: southern California to Acapulco, Guererro, Mexico (Kennedy, 1974).

Family TEREDINIDAE Subfamily TEREDININAE Genus Teredo Linnaeus, 1758 Subgenus Teredo, s. s.

722 Teredo (T.) bartschi Clapp, 1923. Extend distribution to Laguna Caimanero (near MazatHn), Sinaloa, Mexico (Hendrickx, 1980). Synonyms: T. ( Teredo ) batilliformis Clapp, 1924; T. (T.) hiloensis Edmonson, 1942. Cosmopolitan in warm water, floating (Bernard, 1983a).

Genus Lyrodus Gould in Gould & Binney, 1870 Pallets with a brown, easily shed periostracal cap (Keen & Coan, 1975).

— Lyrodus bipartitus (Jeffreys, 1860). Distribution: Gulf of Panama; English Channel. Depth: 3270 to 3670 m (Knudsen, 1970).

— Lyrodus pediceUatus (Quatrefages, 1849). Synonyms: Teredo chlorotica Gould, 1870; T. diegensis Bartsch, 1916; T. (Lyrodus) townsendi Bartsch, 1922; T. (Teredops) floridana Bartsch, 1922; T. (Teredops) hawaiensis Dali, Bartsch & Rehder, 1938. Cosmopolitan in warm waters, 5°S-38°N (Bernard, 1983a). See Turner (1966)

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Vol. XXII (Suppl. 2 to 1990)

for many additional synonyms.

Genus Psiloteredo Bartsch, 1922

723 Psiloteredo healdi (Bartsch, 1931). Synonym: Teredo ( Neoteredo ) miraflora Bartsch, 1922, nom. dub. (Bernard, 1983a).

Genus Uperotus Guettard, 1770

724 Uperotus panamensis (Bartsch, 1922). Synonym: ITeredo lieberkindi Roch, 1931. Include the Atlantic in distribution (Bernard, 1983a).

Subfamily BANKIINAE Genus Bunkia Gray, 1842 Subgenus Bankiella Bartsch, 1921

725 Bankia (B.) gouldi (Bartsch, 1908). Distribution: 25°N-28°N; Atlantic (Bernard, 1983a).

Subgenus Neobankia Bartsch, 1921

— Bankia (N.) destructa Clench & Turner, 1946. Distribution: Atlantic and Pacific sides of Central America (Abbott, 1974). Extend distribution north to Laguna Caimanero (near MazatHn), Sinaloa, Mexico (Hendrickx, 1980).

726 Bankia (N.) orcutti Bartsch, 1923. Synonym: Nausitoria sajnakhaliensis Rajagopal, 1964. Distribution: 26°N-28°N; Indo-Pacific (Bernard, 1983a).

727 Bankia (N.) zeteki Bartsch, 1921. Extend distribution north to Teacap^n, Sinaloa, Mexico (Hendrickx, 1980).

Subgenus Plumulella Clench & Turner, 1946

728 Bankia (P.) cieba Clench & Turner, 1946. Distribution: Greater Antilles to Colombia; Pacific side of Panama (Abbott, 1974).

Genus Nausitora Wright, 1864

730 Nausitora dryas (Dali, 1909). In line 3 read: "The shell is grayish white, often stained with reddish brown from boring in mangrove wood." (Keen & Coan, 1975).

731 Nausitora excolpa (Bartsch, 1922). Delete the

synonym and the last sentence of the paragraph (Keen & Coan, 1975).

Genus Nototeredo Bartsch, 1923

— Nototeredo knoxi (Bartsch, 1917). Bahia de Panama (Keen & Coan, 1975).

Subclass ANOMALODESMATA Follows Yonge & Morton (1980) and Morton (1981).

Order PHOLADOMYOIDA Superfamily PANDORACEA Family PANDORIDAE Genus Pandora Brugui6re, 1797 Subgenus Pandora, s.s.

732 Pandora (P.) brevifrons Sowerby, 1835. Extend distribution north to Roca Consag, Gulf of California, Mexico (DuShane & Brennan, 1969). Valve interior and details of hinge figured (Gemmell, Myers & Hertz, 1987).

733 Pandora (P.) uncifera Pilsbry & Lowe, 1932. Valve interior and details of hinge figured (Gemmell, Myers & Hertz, 1987). Depth: 35 to 50 m (F. & L. Poorman, 1988).

Subgenus Clidiophora Carpenter, 1864

734 Pandora (C.) arcuata Sowerby, 1835. Lectotype of synonym Pandora (C.) claviculata Carpenter, 1856, figured. Lectotype dentition figured. If Olsson’s (1961) drawing of the dentition of P. arcuata is that species, it must be removed from the subgenus Clidiophora (Hertz, Myers & Gemmell, 1985).

738 Pandora (C.) comuta C.B. Adams, 1852. Bright red periostracum along ventral margin. Extend distribution north to San Felipe, Baja California, Mexico. Figured (Gemmell, 1975). Change subgenus from Pandorella. Holotype dentition figured. Distribution: Laguna de Scammon, Baja California Sur; the head of the Gulf of California at San Felipe, Baja California; Puerto Penasco south to Guaymas, Sonora, Mexico; Panama (Hertz, Myers & Gemmell, 1985). Length: 35 mm (Wagner & Abbott, 1990).

Subgenus Pandorella Conrad, 1863

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THE FESTIVUS

Page 53

739 Pandora (P.) granulata Dali, 1915. Bernard (1983) restricts distribution from 24°N to 29°N.

740 Pandora (P.) radiata Sowerby, 1835. Distribution: 23°N-28°N (Bernard, 1983a).

Family LYONSIIDAE

Contains only three marine genera. Subgeneric taxa represent ecomorphs and should not be used (Prezant, 1981).

Genus Lyonsia Turton, 1822

742 Lyonsia calif omica Conrad, 1837. Add synonyms: Lyonsia gouldii Dali, 1915; L. califomica haroldi Dali, 1915. Distribution: 17°N-55°N (Bernard, 1983a). Length: 26.9 mm (Draper, 1987). Extend distribution south to Bahia Cocos, Costa Rica (Skoglund, 1990a).

Genus Entodesma Philippi, 1845 Synonym: Agriodesma Dali, 1909 (Prezant, 1981).

744 Entodesma inflatum (Conrad, 1837). Delete. Becomes synonym of Entodesma pictum (Sowerby, 1834) [748] (Bernard, 1983a).

745 Entodesma brevifrons (Sowerby, 1834).

746 Entodesma sechuranum Pilsbry & Olsson, 1935. Extend distribution north to Bahia San Carlos, Sonora, Mexico. Depth: 20 m (F. & L. Poorman, 1988).

747 Entodesma lucasanum (Bartsch & Rehder, 1939). Delete subgenus Phlycticoncha (Prezant, 1981).

748 Entodesma pictum (Sowerby, 1834). Extend range south to Paita, Piura Province, Peru (Pena, 1971). Delete subgenus Phlycticoncha (Prezant, 1981). Add synonyms: Lyonsia inflata Conrad, 1837 [744]; L. diaphana Carpenter, 1856; Entodesma spongiophila Dali, 1871. Distribution: 4°S-37°N (Bernard, 1983a). Length: 32.2 mm (Draper, 1987). Anatomy figured (as L. inflata.) (Morton, 1987).

Superfamily THRACIACEA Blainville, 1824, ex Leach MS Family PERIPLOMATIDAE Genus Periploma Schumacher, 1817 Subgenus Periploma, s. s.

— Periploma (P.) margaritaceum (Lamarck, 1801).

Synonyms: Periploma inaequivalvis Schumacher, 1817, non P. inequivalve Schumacher, 1816, nom. nud.; Anatina trapezoides Lamarck, 1818; Osteodesma trapezoidalis Blainville, 1825, ex Lamarck MS; Thracia inequalis C.B. Adams, 1850. Interior figured. Length: 16.1 mm. Distribution: Bahia Chamela, Jalisco, Mexico; South Carolina to Texas; Caribbean (Bernard, 1989). Extend distribution from Punta Raza, Nayarit, to Bahia Cuastecomate, Jalisco, Mexico (Skoglund, 1991b).

753 Periploma (P.) planiusculum Sowerby, 1834. Length: 65.6 mm (Draper, 1987). Distribution: Point Conception, California, to Tumbes, Peru (Bernard, 1989).

Subgenus Cricoploma Bernard, 1989

749 Periploma (C.) carpenteri Dali, 1896. Extend distribution north to Bahia San Carlos, Sonora, Mexico. Depth to 100 m (F. & L. Poorman, 1988). Subgenus changed (Bernard, 1989).

750 Periploma (C.) discus Stearns, 1890. Holotype figured (Rosewater, 1980). Subgenus changed. Distribution restricted from 23°N to 37°N (Bernard, 1983a). Length: 37.4 mm (Draper, 1987). Interior figured (Bernard, 1989).

751 Periploma (C.) largatillum Olsson, 1961. Subgenus changed (Bernard, 1989).

752 Periploma (C.) lenticulare Sowerby, 1834.

Extend distribution north to near Santa Rosalia, Baja California Sur, Mexico (Draper, 1972). Subgenus changed. Add synonym:

Periploma obtusa Hanley, 1842 (Bernard, 1989).

754 Periploma (C.) steamsii Dali, 1896. Holotype figured (Rosewater, 1980). Subgenus changed (Bernard, 1989).

755 Periploma (C.) teevani Hertlein & Strong, 1946. Subgenus changed (Bernard, 1989).

Genus Albimanus Pilsbry & Olsson, 1935 Raised from subgenus (Bernard, 1989).

756 Albimanus pentadactylus (Pilsbry & Olsson, 1935). Extend distribution north to El Salvador (Herndndez, 1979). Holotype figured. Interior figured (Bernard, 1989).

Genus Halistrepta Dali, 1904 Raised from subgenus (Bernard, 1989).

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Vol. XXII (Suppl. 2 to 1990)

757 Halistrepta myrae (Rogers, 1962). Holotype figured (Bernard, 1989).

Family THRACIIDAE Follows Coan (1990a).

Genus Thracia Blainville, 1824, ex Leach MS Correct author from Sowerby, 1823 (Coan, 1990a).

Subgenus Ixartia Gray, 1852

758 Thracia (I.) anconensis Olsson, 1961. Holotype figured. Subgenus added (Coan, 1990a).

760 Thracia (I.) curta Conrad, 1857. Subgenus changed. Restrict distribution 23°N-45°N (Bernard, 1983a). Synonyms: Lepton clementinum Carpenter, 1857; Thracia quentinensis Dali, 1921. Holotype figured. Length: 53 mm. Restrict distribution from the San Juan Islands, Washington, to Punta Quepos, Puntarenas Province, Costa Rica. Depth: intertidal zone to 48 m (Coan, 1990a).

Subgenus Odoncineta Costa, 1829

— Thracia (O.) bereniceae Coan 1990. Holotype figured. Length: 17.5 mm. Distribution: Bahia Cholla, Sonora, Mexico, to Bahia Ballena, Gulf of Nicoya, Costa Rica. Depth: intertidal zone to 46 m (Coan, 1990a).

761 Thracia (O.) squamosa Carpenter, 1856. Subgenus added. Holotype figured. Length: 36 mm. Extend distribution south to Islas Las Perlas, Panama. Depth: intertidal zone to 61 m (Coan, 1990a).

Genus Asthenothaerus Carpenter, 1864 Subgenus Asthenothaerus, s. s.

— Asthenothaerus (A.) diegensis (Dali, 1915). Lectotype figured. Length: 11.0 mm. Distribution: San Pedro, Los Angeles County, California, to Bahia Magdalena, Baja California Sur, Mexico; Bahia de los Angeles, Baja California; Guaymas, Sonora, Mexico. Depth: intertidal zone to 119 m (Coan, 1990a).

762 Asthenothaerus (A.) villosior Carpenter, 1864. Extend distribution into the Gulf of California near Santa Rosalia, Baja California Sur, Mexico (Draper, 1972). Extend distribution across the Gulf of California to Bahia San Carlos, Sonora, Mexico. Depth: 35 m (F. & L. Poorman,

1988) . Holotype figured. Delete Thracia diegensis Dali, 1915, as a synonym. Distribution: Isla Cedros, Baja California, throughout the Gulf of California, Mexico, and south to Punta Quepos, Puntarenas Province, Costa Rica. Depth: intertidal zone to 73 m (Coan, 1990a)

Subgenus Skoglundia Coan, 1990

759 Asthenothaerus (S.) colpoica (Dali, 1915). Genus changed from Thracia and subgenus added. Holotype figured. Length: 23.7 mm. Distribution: Guaymas, Sonora, and La Paz, Baja California Sur, Mexico, south to Tumbes Province, Peru. Intertidal zone on mud flats (Coan, 1990a).

Genus Bushia Dali, 1886 Subgenus Bushia, s. s.

— Bushia (B.) galapagana (Dali, 1915). Known only from the Islas GaMpagos, Ecuador (Coan,

1989) . Holotype figured. Length: 25.9 mm. Known only from Isla del Coco, Costa Rica, and the Islas Galdpagos, Ecuador. Depth: 57 to 83 m (Coan, 1990a).

763 Bushia (B.) panamensis (Dali, 1890). Add parentheses to author’s name (Coan, 1990a).

— Bushia (B.) phillipsi Coan, 1990. Holotype figured. Length: 23 mm. Known only from Isla Smith, Bahia de los Angeles, Baja California, and Isla Danzante, Gulf of California, Mexico. Depth: 38 to 183 m (Coan, 1990a).

Subgenus Pseudocyathodonta Coan, 1990

— Bushia (P.) draperi Coan, 1990. Holotype figured. Length: 28.5 mm. Isla Danzante, Gulf of California, Mexico. Depth: 61 m. Known only from the holotype (Coan, 1990a).

Genus Cyathodonta Conrad, 1849

764 Cyathodonta dubiosa Dali, 1915. Synonym: Cyathodonta pedroana Dali, 1915 (Bernard, 1983a). Delete C. pedroana Dali, 1915, as a synonym. Holotype figured. Length: 40.2 mm. Distribution: Isla Smith, Bahia de los Angeles, Baja California, and Punta San Antonio,

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Page 55

Sonora, to Puerto Guatulco, Oaxaca, Mexico. Depth: 13 to 183 m. Keen (1971, fig. 765) is this species (Coan, 1990a).

765 Cyathodonta lucasana Dali, 1915. Delete. Becomes a synonym of Cyathodonta undulata Conrad, 1849 [766] (Coan, 1990a).

— Cyathodonta pedroana (Dali, 1915). Lectotype

figured. Length: 38 mm. Distribution:

Monterey Bay, California, to Bahia Magdalena, Baja California Sur, Mexico. Depth: 9 to 114 m (Coan, 1990a).

— Cyathodonta tumbeziana Olsson, 1961. Holotype

figured. Length: 37.6 mm. Distribution:

Puerto Madero, Chiapas, Mexico, to Mdncora, Tumbes Province, Peru. Depth: 13 to 26 m (Coan, 1990a).

766 Cyathodonta undulata Conrad, 1849. Lectotype figured. Synonym: Cyathodonta lucasana Dali, 1915 [765], Delete as a synonym: C. tumbeziana Olsson, 1961. Length: 50.2 mm. Distribution: Bahia Magdalena, Baja California Sur, throughout the Gulf of California, Mexico, and south to Punta Organos, Peru; Islas Galdpagos, Ecuador. Intertidal zone (Coan, 1990a). Length: 52.3 mm (Wagner & Abbott, 1990).

Superfamily POROMYACEA Family POROMYIDAE Genus Poromya Forbes, 1844 Subgenus Poromya, s. s.

767 Poromya (P.) perla Dali, 1908. Length: 13.8 mm. Anatomy figured. Distribution: California (32°N) to Ecuador (3°N). Depth: 1994 to 3500 m (Knudsen, 1970). As subgenus Cetoconcha. Holotype figured. Distribution: Gulf of Panama to Ecuador (Bernard, 1974). Subgenus changed from Cetoconcha. Distribution: 3°N-24°N (Bernard, 1983a).

Subgenus Cetoconcha Dali, 1886

768 Poromya (C.) scapha (Dali, 1902). Holotype figured. Known only from the type locality (Bernard, 1974).

769 Poromya (C.) smithi (Dali, 1908). Holotype figured. Distribution: Acapulco, Guerrero, Mexico, to Patagonia, Argentina. Depth: 302 to 3439 m (Bernard, 1974). Distribution

restricted to 15°N (Bernard, 1983a).

Subgenus Dermatomya Dali, 1889

770 Poromya (D.) equatorialis Dali, 1908. Holotype figured (Bernard, 1974).

771 Poromya (D.) mactroides Dali, 1889. Holotype figured (Bernard, 1974).

Family CUSPIDARIIDAE Genus Cuspidaria Nardo, 1840 Subgenus Cuspidaria, s. s.

772 Cuspidaria (C.) chilensis Dali, 1908. Holotype figured (Bernard, 1974).

— Cuspidaria (C.) haasi Knudsen, 1970. Length:

34.2 mm. Anatomy figured. Distribution: off central America. Depth: 3570 m (Knudsen, 1970). Holotype figured. Known only from the type locality (Bernard, 1974).

773 Cuspidaria (C.) panamensis Dali, 1908. Holotype figured (Bernard, 1974). Bernard (1983a) restricts distribution to 7°N. Depth: 100 m (F. & L. Poorman, 1988).

774 Cuspidaria (C.) parapodema Bernard, 1969. Holotype, anatomy and hinge figured (Bernard, 1974).

— Cuspidaria (C.) parkeri Knudsen, 1970. Length:

19.2 mm. Anatomy figured. Distribution: Gulf of California, Mexico (23°N). Depth: 2800 m (Knudsen, 1970). Holotype figured. Known only from the type locality (Bernard, 1974).

775 Cuspidaria (C.) patagonica (E. A. Smith, 1885). Holotype figured (Bernard, 1974). Delete. Distribution restricted to 50°S (Bernard, 1983a).

Genus Cardiomya A. Adams, 1864

— Cardiomya balboae (Dali, 1916). Holotype figured. Distribution: California. Depth: 55 to 128 m (Bernard, 1974). Distribution: 0°-34°N, including the Islas Galdpagos, Ecuador. Depth: 45-170 m (Bernard, 1983a).

776 Cardiomya califomica (Dali, 1886). Holotype and hinge figured (Bernard, 1974).

Ill Cardiomya costata (Sowerby, 1834). Hinge figured (Bernard, 1974). Occurrence in the Islas Galdpagos, Ecuador, doubtful (Finet, 1985). Length: 9.1 mm (Draper, 1987).

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Vol. XXII (Suppl. 2 to 1990)

778 Cardiomya didyma (Hinds, 1843). Neotype figured (Bernard, 1974).

779 Cardiomya ecuadoriana (Olsson, 1961). Hinge figured. Distribution: Isla Angel de la Guarda, Gulf of California, Mexico, to Isla La Plata, Ecuador. Depth: 55 to 146 m (Bernard, 1974).

780 Cardiomya isolirata Bernard, 1969. Holotype figured (Bernard, 1974).

781 Cardiomya lanieri (Strong & Hertlein, 1937). Hinge figured (Bernard, 1974). Occurrence in the Islas GaHpagos, Ecuador, doubtful (Finet, 1985).

782 Cardiomya pectinata (Carpenter, 1864). Holotype figured. Delete. Distribution (28°N-60°N) is north of the Panamic Province (Bernard, 1974).

783 Cardiomya planetica (Dali, 1908). Holotype figured. Delete. Distribution (28°N-60°N) is north of the Panamic Province (Bernard, 1974).

784 Cardiomya pseustes (Dali, 1908). Length: 27 mm. Knudsen (1970) regards C. planetica (Dali, 1908) as a synonym. Holotype figured (Bernard, 1974). Distribution: 7°N-49°N (Bernard, 1983a).

Genus Myonera Dali & Smith, 1886

785 Myonera garretti Dali, 1908. Holotype figured. Synonym: M. mexicana Knudsen, 1970 (Bernard, 1974). Delete M. mexicana Knudsen, 1970, as a synonym (Bernard, 1983a).

— Myonera mexicana Knudsen, 1970. Length: 21.8 mm. Valve interior and anatomy figured. Distribution: Mexico (14°N). Depth: 3529 m (Knudsen, 1970). Regarded as a synonym of M. garretti Dali, 1908 (Bernard, 1974). A valid species with a distribution of 14°N-57°N and a depth of 1110 to 3557 m (Bernard, 1983a).

Genus Plectodon Carpenter, 1864

786 Plectodon scaber Carpenter, 1864. As Leiomya

( Plectodon ). Anatomy figured. Extend

distribution north to Santa Barbara, California (Bernard, 1974). Plectodon as a genus

(Bernard, 1983a). Occurrence in the Islas

Galdpagos, Ecuador, doubtful (Finet, 1985).

Superfamily VERTICORDIACEA Bernard, 1974 Family VERTICORDIIDAE

Genus Verticordia Sowerby, 1844, ex Wood MS Subgenus Verticordia, s. s.

787 Verticordia (V) aequacostata A. Howard, 1950. Delete here. Genus changed. See Haliris.

788 Verticordia (V.) hancocki Bernard, 1969. Holotype figured. As subgenus Trigonulina. Known only from the type locality (Bernard, 1974). As subgenus Verticordia (Bernard, 1983a).

789 Verticordia (V) omata (Orbigny, 1846). As subgenus Trigonulina. Synonym: Verticordia coelata Verrill, 1884 (Bernard, 1974). As subgenus Verticordia. Synonym: IHippagus novemcostatus A. Adams & Reeve, 1850 (Bernard, 1983a). Occurrence in the Islas GaMpagos, Ecuador, doubtful (Finet, 1985).

Genus Halicardia Dali, 1895 As a subgenus of Verticordia (Bernard, 1974) and as a genus (Bernard, 1983a).

791 Halicardia perplicata (Dali, 1890). Anatomy figured. Add to distribution: Cabo San Lucas, Baja California Sur, Mexico (Bernard, 1974).

Genus Haliris Dali, 1886 As a genus (Bernard, 1971), a subgenus (Bernard, 1974), and a genus (Bernard, 1983a).

787 Haliris aequacostata (Howard, 1950). Holotype figured. Subgenus changed to Trigonulina. Add Islas Galdpagos, Ecuador, to distribution (Bernard, 1974). Genus changed from Verticordia (Trigonulina) (Bernard, 1983a). Occurrence in the Islas Galdpagos, Ecuador, doubtful (Finet, 1985).

790 Haliris spinosa Bernard, 1969. Holotype figured. Known only from the type locality (Bernard, 1974).

Genus Lyonsiella M. Sars, in G. Sars, 1872

792 Lyonsiella magnifica Dali, 1913. Holotype figured. Known only from the type locality (Bernard, 1974).

Genus Policordia Dali, Bartsch, & Rehder, 1939 Shell ovate, with fine radial ribs; edentulous; ligament in a groove (Keen & Coan, 1975). Synonymized with Lyonsiella by Bernard (1974).

Vol. XXII (Suppl. 2 to 1990)

THE FESTIVUS

Page 57

— Policordia alaskana (Dali, 1895). Length: 24 mm. Distribution: 9°N-55°N. Depth: 1097 to 3570 m (Knudsen, 1970). Holotype and anatomy figured (as Lyonsiella alaskana).

Distribution: Sitka, Alaska, to British Columbia, Canada; Santa Catalina Island, California (Bernard, 1974). As Policordia. Distribution 9°N-55°N (Bernard, 1983a).

LITERATURE CITED

ABBOTT, R. TUCKER

1974. American seashells; the marine Mollusca of the Atlantic and Pacific coasts of North America. 2nd ed. Van Nostrand Reinhold, New York, 663 pp., 24 pis., numerous text figs.

ALLEN, J.A.

1978. Evolution of the deep sea protobranch bivalves. Phil. Trans. Roy. Soc. London. B. 284:387- 401; figs. 1-12.

ALLEN, J.A & FIONA J. HANNAH

1986. A reclassification of the Recent genera of the subclass Protobranchia (Mollusca: Bivalvia). Jour. Conch. 32(4):225-249; figs. 1-50 (Nov.).

1989. Studies on the deep sea Protobranchia: the subfamily Ledellinae (Nuculanidae). Bull. British Mus. Nat. Hist. (Zool.) 55:123-171; figs. 1-81 (Oct. 26).

AVILES-E., MIGUEL C.

1981. La fauna malacol6gica Panamena. I. Punta Paitilla. Thais. Pub. diversas de la Sociedad Panamena de Malacoldgia No. 1:1-28; 1 map (Jun. 29).

BAKUS, GERALD J.

1975. Marine zonation and ecology of Cocos Island, off Central America. Atoll Research Bull. 179:1-9; figs 1-7 (Jan. 15).

BALDAZZI, SERGIO, CESARE Dl CECCO & FRANCO TIBERI

1986. Contribution to the knowledge of the shells of Ecuador. La Conchiglia 18(212-213):4-7; 4 text figs. (Dec.).

BALDWIN, AARON P.

1990. Cymatioa electilis (Berry, 1963) in association with the shrimp Axins. Festivus 22(8):92 (Aug. 9).

BERNARD, FRANK R.

1971. New species of Cuspidaria from the

northeastern Pacific (Bivalvia: Anomalodesmata), with a proposed classification of septibranchs. Venus 38(1): 14- 24; figs. 1-2 (Apr.).

1974. Septibranchs of the eastern Pacific (Bivalvia

Anomalodesmata). Allan Hancock Monogr. Mar. Biol. 8:1- 279; 33 pis., 14 text figs. (Feb. 8).

1975. Rhamphidonta gen. n. from the northeastern Pacific (Bivalvia, Leptonacea). Jour. Conchyliologie 112(3/4): 105-1 15; figs. 1-4 (Dec. 30).

1976. Living Chamidae of the eastern Pacific (Bivalvia: Heterodonta). Nat. Hist. Mus. L.A. Contrib. Sci. 278:1-43; figs. 1-12 (Aug. 30).

1980. A new Solemya s. str. from the northeastern Pacific (Bivalvia: Cryptodonta). Venus 39(1): 17-23; figs. 1-4.

1983a. Catalogue of the living Bivalvia of the eastern Pacific Ocean: Bering Strait to Cape Horn. Canadian Spec. Publ. Fish. Aquat. Sci. 61:1-102.

1983b. New species and synonomies in the genus Nucula s.l. (Bivalvia) of the northeastern Pacific and Atlantic Oceans. Venus 41(4):251- 258: figs. 1-8 (Feb.).

1986. Crassadoma gen. nov. for " Hinnites " giganteus (Gray, 1825) from the north-eastern Pacific Ocean (Bivalvia: Pectinidae). Venus 45(1 ):70- 74 (Mar.).

1989. Living Periplomatidae of the Pacific and Indo- Pacific regions (Bivalvia: Anomalodesmata). Venus 48(1): 1-11; figs. 1-17.

BERTSCH, HANS & BARBARA MYERS

1980. Abyssal specimens of Spinula calcar and Brevisiphonia circumreta (Bivalvia and Gastropoda) from the eastern Pacific. Venus 38(4):252-258; figs. 1-6 (Feb.).

BEU, A.G.

1971. New light on the variation and taxonomy of the bivalve Hiatella. N.Z. Jour. Geol. and Geophysics 14(l):64-66 (Feb. 26).

BOSS, KENNETH J.

1982. Mollusca. Pp. 946-1166; In: S.P. Parker (ed.), Synopsis and classification of living organisms, Vol. 1: xviii +1166 pp.; 87 pis. McGraw-Hill: New York, N. Y.

BOSS, KENNETH J. & RUTH D. TURNER

1980. The giant clam from the Galdpagos Rift, Calyptogena magnifica species novum. Malacologia 20(1): 161-194; figs. 1-13.

BOUCHET, PHILIPPE & ANDERS WAREN

1979. The abyssal molluscan fauna of the Norwegian

Page 58

THE FESTIVUS

Vol. XXII (Suppl. 2 to 1990)

Sea and its relation to other faunas. Sarsia 64(3):21 1-243; figs. 1-53.

BRETSKY, SARA S.

1976. Evolution and classification of the Lucinidae (Mollusca; Bivalvia). Palaeontographica Americana 8(50):218-337; pi 25-36 (Oct. 8).

BRITTON, JOSEPH C. JR.

1972. Two new species and a new subgenus of Lucinidae (Mollusca: Bivalvia) with notes on certain aspects of lucinid phylogeny. Smithsonian Contrib. Zool. 129:1-18; figs. 1-6.

CARTER, GAYLORD JOSEPH

1978. Ecology and evolution of the Gastrochaenacea (Mollusca, Bivalvia) with notes on the evolution of the endolithic habitat. Peabody Mus. Nat. Hist. Bull. 41:99 pp., 67 figs.

CASTILLO RODRIGUEZ, ZOILA G. & ANTONIO

GARCIA-CUBAS

1987. Caracteres morfol6gicos y anat6micos in claves ilustradas de los ostreidos en Mexico. Memorias. Reunidn Nacional de Malacol. y Conquil. 3:69-91:23 text figs., pts. 1-4.

COAN, EUGENE V.

1971. The northwest American Tellinidae. Veliger 14 (Suppl.): 1-63; figs. 1-30 (July 15).

1973a. The northwest American Semelidae. Veliger 15(4):3 14-329; figs. 1-19 (Apr. 1).

1973b. The northwest American Psammobiidae. Veliger 16(l):40-57; figs. 1-27 (July 1).

1979. Recent eastern Pacific species of the crassatellid bivalve genus Crassinella. Veliger 22(1): 1-11; figs. 1-22 (July 1).

1983a. The eastern Pacific Donacidae. Veliger 25(4):273-298; figs. 1-38 (Apr. 1).

1983b. A Semele story (Bivalvia: Semelidae). Nautilus 97(4): 132-134; figs. 1-2 (Oct. 28).

1984a. The Recent Crassatellinae of the eastern Pacific, with some notes on Crassinella. Veliger 26(3): 153-169; figs. 1-16 (Jan. 3).

1984b. The Bernardinidae of the eastern Pacific (Mollusca: Bivalvia). Veliger 27(2):227-237; figs. 1-10 (Oct. 5).

1985. Some additional notes on the distribution of eastern Pacific Donacidae. Veliger 28(2):217 (Oct. 1).

1986. Some additional taxonomic units that first appear in publications by J.G. Cooper. Nautilus 100(l):30-32 (Jan. 31).

1987. Concerning the type material of Lasaea subviridis Dali, 1988. Veliger 29(4):445 (Apr. 1).

1988a. The eastern Pacific species of Semele. West. Soc. Malac. Ann. Rept. 20:26 (March 8).

1988b. Recent eastern Pacific species of the bivalve genus Semele. Veliger 31(l/2):l-42, 64 figs. (July 1).

1989. Some bivalve records from the Galdpagos Islands. West. Soc. Malac. Ann. Rept. 21:11-12.

1990a. The Recent eastern Pacific species of the bivalve family Thraciidae. Veliger 33(1):20- 55; figs. 1-51 (Jan. 2).

1990b. The eastern Pacific species of the bivalve

family Spheniapsidae. Veliger 33(4):394-401; figs. 1-12 (Oct. 1).

CONEY, C. CLIFTON

1990. Bellascintilla parmaleeana new genus and species from the tropical eastern Pacific, with a review of the other, ventrally notched galeommatid genera (Bivalvia: Galeommatacea). Nautilus 104(4): 130-144; figs. 1-38 (Dec. 13).

CRUZ-P., MANUEL

1977. Bivalvos de la plataforma continental de la region norte de Ecuador. Publ. Inocar, Dept. Ciencias del Mar, Div. Biol. Mar. 1(1): 1-54; pis. 1-3.

DALL, WILLIAM HEALEY

1913. Diagnoses of new shells from the Pacific

Ocean. Proc. U.S. Nat. Mus. 45(2002):587- 597.

1921. Summary of the marine shellbearing mollusks of the northwest coast of America, from San Diego, California, to the Polar Sea, mostly contained in the collection of the United States National Museum, with illustrations of hitherto unfigured species. Smithsonian Bull. 112: 217pp.; pis. 1-22.

DELL, R. K.

1987. Mollusca of the family Mytilidae (Bivalvia) associated with organic remains from deep water off New Zealand, with revisions of the genera Adipicola Dautzenberg, 1927 and Idasola Iredale, 1915. Nat. Mus. New Zealand Rec. 3(3): 17-36; figs. 1-53 (Mar. 30).

DRAPER, BERTRAM C.

1972. Check list of shells found in scrapings from Spondylus princeps taken at a depth of 40 feet, southeast of Santa Rosalia, Baja California, 1969. Festivus 3(4):5-7 (Apr.).

1987. Lost Operculum Club list of champions.

Conch. Club So. Calif.: 143 pp. (June).

DUSHANE, HELEN & ELLEN BRENNAN

1969. A preliminary survey of mollusks for Consag Rock and adjacent areas, Gulf of California, Mexico. Veliger 1 1(4):35 1-363; 1 map

(Apr. 1).

FILATOVA, Z.A & A.A. SHILEIKO

1984. Ob’em, struktura i Rasprostraneie

Glubokovodnykh Dvustvorchatykh Molliuskov Semeistva Ledellidae (Protobranchia). [Size, structure and distribution of the deep-sea Bivalvia of the family Ledellidae

Vol. XXII (Suppl. 2 to 1990)

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Page 59

(Protobranchia).] Akad. NAUK, SSSR, Inst. Okean., Trudy 119:106-144; 25 figs.

EMERSON, WILLIAM K.

1978. Mollusks with Indo-Pacific faunal affinities in the eastern Pacific Ocean. Nautilus 92(2):91- 96 (Apr. 27).

FINET, YVES

1985. Preliminary faunal list of the marine mollusks of the Galdpagos Islands. Instit. Roy. Sci. Nat. Belgique. Documents de Travail 20:1-50.

1987. Pinna rugosa Sowerby, 1835 (Bivalvia: Pinnidae) at the Galdpagos Islands. Veliger 30(l):98-99 (July 1).

FISCHER-PIETTE, EDOUARD

1975. Revision des Venerinae, s. s. M6m. Mus. Nat. d’Hist., n.s., Sdrie A Zool. 93:1-64; 8 pis.

1977. R6vision des Cardiidae (Mollusques Lamellibranches). Mdm. Mus. Nat. d’hist. Nat. Sdrie A Zool. 101:1-212, 11 pis.

FISCHER-PIETTE, EDOUARD & DRAGOJLA

VUKADINOVIC

1977. Suite des rdvision des Veneridae (Moll.

Lamellibr.) Chioninae, Samaranginae et complement aux Venus. Mem. Mus. Nat. d’hist. Nat. Sdrie A Zool. 106:1-186, 22 pis.

GARCIA, VIELKA & ANTONIO PELESCA

1984. Estudio de la poblacidn malacoldgica en la playa La Albina Grande, Guarate, Provincia de Los Santos. Donax Panamensis 43:73-78 (Aug.).

GARCLA-CUBAS, ANTONIO & MARTHA REGUERO

1987. Caracterizaci6n ecol6gica de moluscos en lagunas costeras de Sonora y Sinaloa. Memorias. Reuni6n Nacional de Malacol. y Conquil. 3:1-30: figs. 1-8.

GEMMELL, JOYCE

1975. Shrimp boat shelling. Festivus 6(6):34-35; 1 fig. (Jun.).

GEMMELL, JOYCE, CAROLE M. HERTZ &

BARBARA W. MYERS

1980. Seastar predation on mollusks in the San Felipe Bay area, Baja California, Mexico. Festivus 12(3):24-55; figs. 1-51, 2 maps (Mar.).

1985. A problem oyster in the Gulf of California (" Ostrea " quercinus Sowerby, 1871 rediscovered). Festivus 18(5):43-48; figs. 1-8 (May 9).

GEMMELL, JOYCE, BARBARA W. MYERS &

CAROLE M. HERTZ

1979. Solemyidae: clarification of two species in the subgenus Petrasma. Festivus ll(9):73-76; figs. 1-5 (Sept.).

1981. A report on the faunal study of the Gemmell collection from San Felipe, Baja California, Mexico from 1965 to 1976. Festivus 13(8):87-93; figs. 1-10 (Aug.).

1983. Observations on Tellina coani Keen, 1971. Festivus 15(10): 103-104; figs. 1-5 (Oct. 13).

1984. Observations on Macoma siliqua (C. B. Adams, 1852) Bivalvia: Tellinidae. Festivus 16(5):54-61; figs. 1-14 (May 10).

1987. A faunal study of the bivalves of San Felipe and environs, Gulf of California, from the Gemmell collection (1965 to 1976). Festivus 18 (Suppl.): 1-72; figs. 1-78 (Feb. 26).

GOLDSMITH, MJ.

1971. Pegophysema edentnloides from the Gulf of California shrimp nets. Of Sea and Shore 2(4): 175; 1 text fig. (Winter).

GRAU, GILBERT

1959. Pectinidae of the eastern Pacific. Allan

Hancock Pacific Exped. 23:i-viii+ 1-308; pis. 1-57 (Sept. 25).

HARRY, HAROLD W.

1985. Synopsis of the supraspecific classification of living oysters (Bivalvia: Gryphaeidae and Ostreidae). Veliger 28(2): 121-158; figs. 1-30 (Oct. 1).

HENDRICKX, MICHEL E.

1980. Range extensions of three species of

Teredinidae (Mollusca; Bivalvia) along the Pacific coast of America. Veliger 23(l):93-94 (July 1).

HERNANDEZ, MARCO ANTONIO

1979. Range extensions of mollusk species found on the tropical coast of El Salvador. Veliger 22(2):204-205 (Oct. 1).

HERTLEIN, LEO G.

1972. Description of a new species of Chlamys (Mollusca: Pelecypoda) from the Galdpagos Islands. Proc. Calif. Acad. Sci. 4th ser. 39(1): 1-6; figs. 1-5 (Jan. 21).

HERTLEIN, LEO GEORGE & U.S. GRANT IV

1972. The geology and paleontology of the marine Pliocene of San Diego, California (Paleontology: Pelecypoda). San Diego Soc. Nat. Hist. Mem. 2 (part 2b): 135-411; pis. 27- 57 (Jul. 21).

HERTZ, CAROLE M.

1976. Bomia chiclaya Olsson, 1961 in San Felipe. Festivus 7(2): 11; 2 figs. (Feb.).

1984. Illustration of the types named by S. Stillman Berry in his "Leaflets in Malacology". Festivus 15 (Suppl.): 141, 92 figs.

1990. Corrections. Festivus 22(11): 118 (Nov. 8).

1991. Range extension for Semele barbarae (Boone, 1928). Festivus 23:7 (Jan. 10).

HERTZ, CAROLE M., JOYCE GEMMELL &

BARBARA W. MYERS

1982. A review of Chama buddiana C. B. Adams, 1852 (Bivalvia: Chamidae). Festivus 14(2): 15-24; figs. 1-23 (Feb.).

HERTZ, CAROLE M, BARBARA W. MYERS &

JOYCE GEMMELL

1982. The distribution of Diplodonta orbellus (Gould, 1851) and a diagnosis of Diplodonta

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Vol. XXII (Suppl. 2 to 1990)

subquadrata (Carpenter, 1856) (Bivalvia: Ungulinidae). Festivus 14(7):76-87; figs. 1-14 (July).

1984. A comparison of two related species of Tellina : Tellina hibema Hanley, 1844 and Tellina amianta Dali, 1900. Festivus 16(3):28-34; figs. 1-15 (Mar. 8).

1985. Pandora (Clidiophora) comuta C. B. Adams, 1852, and new information on its distribution. Festivus 17( 10):101-1 10; figs. 1-11 (Oct. 10).

HERTZ, JULES

1977. Minute shells. Festivus 9(10):69; figs. 1-2 (Oct.).

HERTZ, JULES & CAROLE M. HERTZ

1984. Collecting in La Paz. Festivus 16(6):66-70; figs. 1-6 (June 14).

JONES, CAROL C.

1979. Anatomy of Chione cancellata and some other chionines (Bivalvia: Veneridae). Malacologia 19(1): 157-199; figs. 1-99.

KAY, E. ALISON

1979. Hawaiian marine shells. Reef and shore fauna of Hawaii Section 4: Mollusca. Bishop Mus. Spec. Publ. 64(4):654 pp; figs. 1-195.

KEEN, A. MYRA

1971. Sea shells of tropical West America: marine mollusks from Baja California to Peru. Stanford Univ. Press, Stanford, Calif. i-xiv+1064 pp.; ca. 4000 figs.; 22 color pis.

1980. The pelecypod family Cardiidae: a taxonomic summary. Tulane Stud. Geol. & Paleont. 16(1): 1-44; pi 1-13 (Sept. 17).

KEEN, A. MYRA and EUGENE COAN

1975. "Sea shells of Tropical West America": additions and corrections to 1975. West. Soc. Malac. Occ. Paper 1: 66 pp.

KEMPERMAN, TH. C. M.

1990. Jouannetia DesMoulins, 1828 (Bivalvia: Pholadidae) from Costa Rica. Basteria 54(1- 3): 122; 1 fig. (Jun.).

KENK, VIDA CARMEN & BARRY R. WILSON

1985. A new mussel (Bivalvia, Mytilidae) from hydrothermal vents in the Galdpagos Rift zone. Malacologia 26(l-2):253-271; figs. 1-13.

KENNEDY, GEORGE L.

1974. West American Cenozoic Pholadidae (Mollusca: Bivalvia). San Diego Soc. Nat. Hist. Mem 8:1-127; figs. 1-103 (Jun. 28). KLEEMAN, K. H.

1980. Boring bivalves and their host corals from the Great Barrier Reef. J. Moll. Stud. 46( 1): 13- 54; figs. 1-43 (Apr.).

1983. Catalogue of Recent and fossil Lithophaga (Bivalvia). Suppl. 12. J. Moll. Stud. 46 pp (May).

1984. Lithophaga (Bivalvia) from dead coral from the Great Barrier Reef, Australia. Jour. Moll.

Stud. 50(3): 192-230; figs. 1-29.

KNUDSEN, JORGEN

1970. The systematics and biology of abyssal and hadal Bivalvia. Galathea Report no. 11, 241 pp., 20 pis., 132 text-figs. (Nov. 6). LAMPRELL, KEVIN

1987. Spondylns spiny oyster shells of the world. EJ. Brill, Pub. 84 pp., 30 pis.

MARELLI, DAN C. & SUSAN GRAY

1983. Conchological redescriptions of Mytilopsis sallei and Mytilopsis leucophaeta of the brackish western Atlantic (Bivalvia: Dreissenidae). Veliger 25(3): 185-193; figs. 1-6 (Jan. 1). MAXWELL, PHILLIP A.

1988. Comments on "A reclassification of the Recent genera of the subclass Protobranchia (Mollusca: Bivalvia)" by J.A. Allen and F.J. Hannah (1986). Jour. Conch. 33(2):85-96 (Dec.).

MCDONALD, J.H. & R.K. KOEHN

1988. The mussels Mytilus galloprovincialis and M.

trossulus on the Pacific coast of North America. Marine Biol. 99(1): 111-1 18; figs. 1- 4.

MCLEAN, JAMES H.

1978. Marine shells of Southern California. Nat.

Hist. Mus. L.A. Sci. Ser. 24 (revised): 104 pp; figs. 1-54 (Mar. 20).

MCPEAK, RON H.

1988. Lyropecten subnodosus off Cedros Island.

Festivus 20(7):69 (Jul. 14).

MONTOYA, MICHEL

1983. Los moluscos marinos de la Isla del Coco, Costa Rica. I. Lista anotada de especies. Brenesia 21:325-353.

MONTOYA, MICHEL, AL LOPEZ & JULIO LOPEZ 1987. Range extensions of several Panamic mollusks based on new records made in Nicaragua. Part I. Festivus 19(5):43-45 (May 14). MOORE, ELLEN JAMES

1983. Tertiary marine pelecypods of California and Baja California: Nuculidae through Malleidae. U.S.G.S. Prof. Paper 1228-A: 1-108 pp. + 42 pis.

1984. Tertiary marine pelecypods of California and Baja California: Propeamussiidae and Pectinidae. U.S.G.S. Prof. Paper 1228-B:1- 112+42 pis.

1987. Tertiary marine pelecypods of California and Baja California: Plicatulidae to Ostreidae. U.S.G.S. Prof. Paper 1228-C: 1-53+34 pis.

1988. Tertiary marine pelecypods of California and Baja California: Lucinidae through Chamidae. U.S.G.S. Prof. Paper 1228-D.T-46+11 pis.

MORTON, BRIAN

1981. The Anomalodesmata. Malacologia 21(1-

2):35-60.

Vol. XXII (Suppl. 2 to 1990)

THE FESTIVUS

Page 61

1987. The mantle margin and radial mantle glands of Entodesma saxicola and E. inflata (Bivalvia: Anomalodesmata: Lyonsiidae). Jour. Moll. Stud. 53(2): 139-151; figs. 1-10 (Aug. 2).

MULLINER, MARGARET

1984. Intertidal mollusks collected at Bahia San Luis Gonzaga, Baja California Norte, Mexico. Festivus 16(4):46-47 (Apr.).

MYERS, BARBARA W. & ANTHONY D’ATTILIO

1979. Range extension for Isognomon janus Carpenter, 1857 (Bivalvia). Festivus 11(10)79-81; figs. 1-2 (Oct.).

1980. Observations on Dimya califomiana Berry, 1936 and redescription of the hinge (Bivalvia: Dimyacea). Festivus 12(10): 119-124; figs. 1-3 (Oct.).

MYERS, BARBARA W„ JOYCE GEMMELL & CAROLE M. HERTZ

1983. Is there a Tellina reclusa or is Tellina brevirostris a variable species? Festivus 15(8):81-87; figs. 1-12 (Aug. 11).

1984. Examination of Gari helenae Olsson, 1961 and redescription of the hinge/ligament. Festivus 16(2):20-25; figs. 1-14 (Feb. 9).

MYERS, BARBARA W., CAROLE M. HERTZ & JOYCE GEMMELL

1983a. A note on Macoma ( Psammacoma ) elytnim Keen, 1958. Festivus 15(6):64-67; figs. 1- 6 (June 9).

1983b. A correction to "A note on Macoma ( Psammacoma ) elytnim Keen, 1958". Festivus 15(8):8 8 (Aug. 11).

NICOL, DAVID & DOUGLAS S. JONES

1984. Bellaxinaea, a new subgenus of glycymeridids (Pelecypoda) from the western hemisphere. Nautilus 98(3): 126-128; figs. 1-3 (Jui. 27).

O FOIGHIL, DIARMAID & DOUGLAS J. EERNISSE

1988. Geographically widespread, non-hybridizing sympatric strains of the hermaphroditic, brooding clam Lasaea in the northeastern Pacific Ocean. Biol. Bull. 175(2):218-229:figs. 1-9 (Oct.).

OLIVER, G. & J.A. ALLEN

1980. The functional and adaptive morphology of the deep-sea species of the Arcacea (Mollusca: Bivalvia) from the Atlantic. Phil. Trans. Roy. Soc. London 291(1045):6-76; figs. 1-29 (Nov. 20).

OLIVER, P. GRAHAM

1981. The functional morphology and evolution of the Recent Limopsidae (Bivalvia, Arcoidea). Malacologia 21(l-2):61-93; figs. 1-27.

OLSSON, AXEL A.

1961. Mollusks of the tropical eastern Pacific particularly from the southern half of the Panamic-Pacific faunal province (Panama to Peru). Panamic-Pacific Pelecypoda. Paleont.

Res. Inst. 574 pp.; pis. 1-86 (Mar. 10).

PENA, G.M.

1971. Zonas de distribution de los bivalvos marinos del Peru. Ana. Cient. La Molina 9(34): 127- 138.

PERRIN, BILL

1977. Two days on Clipperton— or getting high on boobies. Festivus 8(4):24-26 (Apr.).

PREZANT, ROBERT S.

1981. Taxonomic re-evaluation of the bivalve family Lyonsiidae. Nautilus 92(2):58-72; figs. 1-14 (Apr. 30).

POORMAN, FORREST L. & LEROY H. POORMAN

1978. Additional molluscan records from Bahia de Los Angeles, Baja California Norte. Veliger 20(4):369-374 (Apr. 1).

1988. A report of the molluscan species in the San Carlos rectangle, Sonora, Mexico, collected by Forrest L. and Leroy H. Poorman from December 1953 to December 1983. Festivus 20(6):47-63, 1 map (June 9).

REGUERO, M. & A. GARCIA-CUBAS

1987. Sistemdtica y ecol6gia de moluscos bentdnicos de Nayarit. Memorias. Soc. Mexicana Malacol. 3:31-47; figs. 1-2.

1989. Moluscos de la plataforma continental de Nayarit: sistemdtica y ecol6gia (cuatro campafias oceanogrdficas). An. Inst. Cienc. del Mar y Limnol. Univ. Nal. Aut6n. Mexico 16(l):33-58.

ROSEWATER, JOSEPH

1976. Some results of the National Museum of Natural History-Smithsonian Tropical Research Institute survey of Panama. Bull. Amer. Malacol. Union, Inc., 1975: 48-50.

1980. Predator boreholes in Periploma margaritaceum, with a brief survey of other Periplomatidae. Veliger 22(3):248-251; figs. 1-2 (Jan. 1).

1984. A new species of leptonacean bivalve from off northwestern Peru (Heterodonta: Lasaeidae). Veliger 27(l):81-89; figs. 1-6 (July 2).

ROTH, BARRY & EUGENE V. COAN

1978. Nomenclatural notes on Hinnites giganteus (Gray). Veliger 20(3):297-298 (Jan. 1).

SAL VAT, B. & F. SALVAT

1972. Geographic distribution of Pinna rugosa Sowerby, 1835 (Mollusca: Bivalvia). Veliger 15(l):43-44 (Jul.).

SANDERS, H.L. & J.A. ALLEN

1985. Studies on deep-sea Protobranchia (Bivalvia); the family Malletiidae. Bull. British Mus. Nat. Hist (Zool.) 49(2): 195-238; figs. 1-41 (Dec. 19).

SCOTT, PAUL H.

1986. A new species of Adontorhina (Bivalvia: Thyasiridae) from the northeast Pacific, with

Page 62

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Vol. XXII (Suppl. 2 to 1990)

notes on Adontorhina cyclia Berry, 1947. Veliger 29(2): 149- 156; figs. 1-13 (Oct. 1).

1987. A preliminary review of Mysella (Bivalvia,

Montacutidae) from the northwestern Pacific. West. Soc. Malac. Ann. Rept. 19:13-14 (Mar. 7).

SCOTT, PAUL H., F. G. HOCHBERG & BARRY

ROTH

1990. Catalog of Recent and fossil molluscan types in the Santa Barbara Museum of Natural History. I. Caudofoveata, Polyplacopora, Bivalvia; Scaphopoda, and Cephalopoda. Veliger 33 Suppl.: 1-27; figs. 1-3 (Jan. 2).

SHASKY, DONALD R.

1980. Spondylus princeps in Ecuadorian antiquity.

Festivus 12(1):9-1 1 (Jan.).

1983. New records of Indo-Pacific Mollusca from

Cocos Island, Costa Rica. Nautilus 97(4): 144-145 (Oct. 28).

1986a. Update on mollusks with Indo-Pacific faunal affinities in the tropical eastern Pacific IV [abstract]. West. Soc. Malac. Ann. Rept. 18:27 (Jan.).

1986b. Update on mollusks with Indo-Pacific faunal affinities in the tropical eastern Pacific IV. Festivus 18(l):3-5; figs. 1-8 (Jan. 9).

1987. Update on mollusks with Indo-Pacific faunal affinities in the tropical eastern Pacific - Part V. Festivus 19(6):48-50; figs. 1-4 (June 11).

1989. An update on the mollusks from the Galdpagos Islands as listed in "Preliminary faunal list of the marine mollusks of the Galdpagos Islands" by Yves Finet. Festivus 21(1 ):7-10 (Jan. 12).

SKOGLUND, CAROL

1974. Intertidal marine Mollusca of Cape Tepoca, Sonora, Mexico. M. Sc. Thesis. Arizona State University: 69 pp.

1976. Spine development of juveniles in three species of Panamic Hysteroconcha (Bivalvia: Veneridae). West. Soc. Malacol. Ann. Rept. 9:37-38 (Oct.).

1988. Deep water shells from off Isla Smith, Bahia de los Angeles, Baja California, Mexico. Festivus 20(11): 110-1 16; figs. 1-10 (Nov. 10).

1989. Additions to the Panamic Province chiton (Polyplacophora) literature - 1971 through

1988. Festivus 21(9):78-91 (Sept. 7).

1990a. Panamic Province molluscan range extensions from Bahia Cocos, Guanacaste, Costa Rica. Festivus 22(9): 100 (Sept. 13).

1990b. Molluscan range extensions to Playas de Villamil, Guayas, Ecuador. Festivus 22(1 1):1 19-121 (Nov. 8).

1991a. Additions to the Panamic Province Opisthobranchia (Mollusca) literature 1971 to

1990. Festivus (Suppl. 1) 22:27 pp. (Feb. 14).

1991b. New distributional information for Periploma margaritaceum (Lamarck, 1801) and Pristes oblongus Carpenter, 1864 (Mollusca: Bivalvia). Festivus 23:24; figs. 1-3 (Mar. 14).

1991c. Chama arcana Bernard, 1976, reported in the Gulf of California, Mexico (Mollusca: Bivalvia). Festivus 23(5):37-38; figs. 1-3 (May 9). SOOT-RYEN, TRON

1955. A report on the family Mytilidae (Pelecypoda). Allan Hancock Pacific Exped. 20(1): 1-174; figs. 1-78, pis. 1-10.

STRONG, A.M.

1934. A new Californian Pseudochama. Nautilus 46(4): 137; pi. 8, figs. 6-7 (April).

1938. New species of west American shells. Proc. Calif. Acad. Sci. 23(14):203-216; pis. 15-16 (May 24).

TARDIN CASSAB, RITA DE CASSIA

1984. Sobre ocorrfincia de Periglypta multicostata na Formaqao Pirabas, Oligoceno-Mioceno do Brasil (Formacjao Pirabas\ Bivalvia\ Provincia Caribeana Tercidria). An. Acad. Brasil, Cienc. 56(3):283-286; 1 text fig.

TEVESZ, MICHAEL J.S.

1977. The taxonomy and ecology of the Philobryidae and Limopsidae (Mollusca: Pelecypoda). Postilla. Peabody Mus. Yale Univ. 171:1-66; figs. 1-29 (Mar. 30).

TOMICIC-K., JORGE

1978. Raeta undulata (Gould, 1851) una especie nueva para aguas chilenas (Molusca, Pelecypoda, Mactridae). Noticiario Mensual 22(257-258): 11-12 (Jan.-Feb.).

TURGEON, D. D., A.E. BROGAN, E.V. COAN, W.K. EMERSON, W.G. LYONS, W.L. PRATT, C.F.E. ROPER, A. SCHELTEMA, F.G. THOMPSON, & J.D. WILLIAMS

1988. Common and scientific names of aquatic invertebrates from the United States and Canada. Mollusks. Amer. Fisheries Soc. Spec. Pub. 16: 277 pp.

TURNER, RUTH D.

1966. A survey and illustrated catalogue of the Teredinidae. Mus. Comp. Zoology, Harvard, 265 pp., 64 pis.

VAUGHT, KAY CUNNINGHAM

1989. A classification of the living Mollusca. Amer. Malac. Inc. 195 pp.

VILLARROEL, MARIA & JOSE STUARDO

1977. Observaciones sobre la morfologia general, musculatura y aparato digestivo en Tagelus (Tagelns) dombeii y T. (T.) longisinuatus (Tellinacea: Solecurtidae). Malacologia 16(2):333-352; figs. 1-15.

VOKES, HAROLD E.

1973. Notes on the fauna of the Chipola Formation - XIII. The Family Limidae (Mollusca:

Vol. XXII (Suppl. 2 to 1990)

THE FESTIVUS

Page 63

Bivalvia). Tulane Stud. Geol. & Paleont. 10(2):87-96; figs. 1-7 (Apr. 11).

VON PRAHL, HENRY

1986. Notas sobre la zoogeografia de corales, crustaceos, moluscos y peces. Pp. 89-127 In H. von Prahl & M. Alberico (eds.), Isla de Gorgona. Banko Popular y Univ. del Valle, Bogota, Colombia, [possibly 30 Nov. 1985]

WAGNER, ROBERT J.L. & R. TUCKER ABBOTT

1988a. World size records. Hawaiian Shell News 36(4):6 (Apr.).

1988b. World size records. Hawaiian Shell News 36(11)10 (Nov.).

1989. World size records. Hawaiian Shell News 36(1 ):6 (Jan.).

1990. Wagner and Abbott’s world size records. Supp. 4 Stand. Cat. Shells. Amer. Malacol., Inc.:l- 80.

WALLER, THOMAS R.

1971. The glass scallop Propeamnssium , a living relict of the past. Bull. Amer. Malacol. Union, Inc., 1970: 5-7.

1978. Morphology, morphoclines and a new classification of the Pteriomorphia (Mollusca: Bivalvia). Phil. Trans. Roy. Soc. London B. 284:345-365; figs. 1-2.

WILSON, B.R. & RICHARD TAIT

1984. Systematics, anatomy and boring mechanisms of the rock-boring mytilid bivalve Botnla.

Proc. Roy. Soc. Victoria 96(3): 1 13-125; figs. 1- 7 (Sept.).

WOODRING, W.P.

1973. Geology and paleontology of the Canal Zone and adjoining parts of Panama. Descriptions of Tertiary mollusks (additions to gastropods, scaphopods, pelecypods: Nuculidae to Malleidae). U.S.G.S. Prof. Papier 306-E:453- 539; pis. 67-82.

1982. Geology and paleontology of the Canal Zone and adjoining parts of Panama. Description of Tertiary mollusks (Pelecypods: Propeamussiidae to Cuspidariidae; additions to families covered in P 306-E; additions to gastropods; cephalopods). U.S.G.S. Prof. Paper 306-F:541-759; pis. 83-124.

YONGE, C.M.

1977. Form and evolution in the Anomiacea (Mollusca: Bivalvia) - Pododesmus, Anomia, Patro, Enigmonia (Anomiidae): Placunanomia, Placuna (Placunidae Fam. Nov.). Phil. Trans. Roy. Soc. London 276(950):453-523; figs. 1- 53 (Feb. 11).

YONGE, C.M. & BRIAN MORTON

1980. Ligament and lithodesma in the Pandoracea and the Poromyacea with a discussion on evolutionary history in the Anomalodesmata (Mollusca: Bivalvia). Jour. Zool. London 191:263-292.

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Page 64

THE FESTIVUS

INDEX

Abra, 48

abruptus, Donax, 44 abyssicola, Benthomodiolus, 12 abyssicola, Sarepta, 5 abyssorum, Bathyarca, 8 Acar, 6 Acesta, 18

ACHARACIDAE, 2 Acharax, 2 acrita, Saccella, 4 Acrosterigma, 30 aculeatus, Spondylus, 18 acuta, Polymesoda, 21 Acutispinula, 5 adamas, Anomia, 19 adamsi, Anadara, 7 adamsi, Crassinella, 20 adamsi, Cumingia, 48 adamsi, Mytilopsis, 22 adamsianus, Brachidontes, 10 adansoni, Lasaea, 26 adelinae, Crassatella, 20 Adontorhina, 25 Adrana, 4 Adula, 12

aduncata, Crassinella, 20 Aeidimytilus, 10 aequacostata, Haliris, 56 aequacostata, Verticordia, 56 aequatorialis, Anadara, 7 aequinoctialis, Pitar, 34 aequisulcatus, Pecten, 16 aequitorialis, Eucrassinella, 20 aequizonata, Lucinoma, 24 affine, Cardium, 31 affmis, Carditamera, 21 affinis, Hemicardia, 31 affinis, Tagelus, 45 agapea, Jupiteria, 4 agassizii, Lima, 18 Agriodesma, 53 alaskana, Lyonsiella, 57 alaskana, Policordia, 57 alata, Mactrellona, 38 Albimanus, 53 Aligena, 27, 28 allyneana, Mytilopsis, 22 alope, Placunanomia, 19 alta, Tellina, 41 alternata, Barbatia, 7 alternata, Cytherea, 32 alternatus, Pitar, 33 altilis, Polymesoda, 21 altior, Iphigenia, 44 amathusia, Chionopsis, 36

amathusia, Venus, 36 amblia, Nuculana, 4 americana, Martesia, 51 americanus, Modiolus, 12 Americardia, 31 Amerycina, 26 amianta, Tellina, 39 Amiantis, 34 Amphichaena, 43 Amphidesma, 46 amplectans, Angulus, 39 ampliata, Venus, 36 amygdalina, Petricola, 37 Amygdalum, 12 anachoreta, Petricola, 37 Anadara, 7 ANADARINAE, 7 Anchomasa, 50 anconensis, Thracia, 54 angelica, Myrakeena, 14 angulosa, Cytherea, 34 Angulus, 39 angusta, Mactra, 38 annettae, Nemocardium, 31 annulata, Lucinoma, 24 Anodontia, 24 anomala, Polymesoda, 21 ANOMALODESMATA, 52 Anomia, 19 ANOMIACEA, 19 ANOMIIDAE, 19 anomioides, Plicatula, 15 antillarum, Eucrassatella, 20 Antinioche, 36 Apiocardia, 31 apodema, Mercenaria, 36 approximata, Parvilucina, 23 Area, 6 ARCACEA, 6 arcana, Chama, 28 arces, Pecten, 16 Archivesica, 22 ARCIDAE, 6 arciformis, Minormalletia, 6 ARCINAE, 6 Arcinella, 29 ARCOIDA, 6 Arcopsis, 8 arctica, Hiatella, 50 ARCTICACEA, 22, 28 arcuata, Pandora, 52 arcuta, Laeda, 4 Ardeamya, 42 argentina, Tivela, 32 argis, Tellina, 40

Vol. XXII (Suppl. 2 to 1990)

Argopecten, 16 aricanus, Donax, 43 aristata, Lithophaga, 11 aristata, Myoforceps, 12 artemidis, Lucina, 23 ashleyi, Semele, 46 askoyana, Tellina, 39 asper, Donax, 42 asperrima, Protothaca, 37 aspersa, Papyridea, 30 assimilis, Donax, 42, 43 asthenodon, Leporimetis, 41 Asthenothaerus, 54 atossa, Tindaria, 5, 6 Atrina, 13

attenuata, Lithophaga, 11 aurantiaca, Megapitaria, 34 auricula, Anadara, 8 auriculata, Area, 8 aurora, Cytherea, 32 aurora, Psammotreta, 42 AUTOBRANCHIA, 6 aviculina, Cardita, 20 Axinactis, 9 Axinola, 9

AXINOPSIDINAE, 25 azulensis, Nucula, 3 bahamensis, Pholadidea, 51 bailyi, Barbatia, 6 bakeri, Orobitella, 28 balboae, Cardiomya, 55 baltrana, Diplodonta, 25 Bankia, 52 Bankiella, 52 BANKIINAE, 52 barbarae, Semele, 47 barbarae, Tellina, 47 Barbatia, 6 Barnea, 50 bartschi, Teredo, 51 Basterotella, 28 Basterotia, 28 Bathyarca, 8

BATHYMODIOLINAE, 13 Bathymodiolus, 13 batilliformis, Teredo, 51 beebei, Cardita, 21 beebei, Cyclocardia, 21 beili, Protothaca, 36 belcheri, Trachycardium, 30 Bellascintilla, 25 Bellaxinaea, 9 bellilamellatus, Pecten, 17 Bellucina, 23 benedicti, Hinnites, 16

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THE FESTIVUS

Page 65

benthima, Minormalletia, 6 Benthomodiolus, 12 bereniceae, Thracia, 54 beringensis, Cuspidaria, 56 Bernardina, 28 BERNARDINIDAE, 28 berryana, Grippina, 50 berryi, Flabellipecten, 17 berryi, Pecten, 17 berryi, Pitar, 33 biangulata, Anadara, 8 biangulata, Scrobicularia, 41 biangulata, Trachycardium, 31 bicarinata, Corbula, 49 bicolor, Mytilus, 10 bicolor, Semele, 45 bicostata, Saccella, 4 bifrons, Anadara, 7 bifurcatus, Mytilus, 10 bifurcatus, Septifer, 10 biolleyi, Leptopecten, 17 bipartitus, Lyrodus, 51 bipenniferus, Lithophaga, 11 biradiata, Corbula, 49 biradiata, Cytherea, 32 biserialis, Cytherea, 32 bistriatus, Cyclopecten, 16 bitinctus, Donax, 43 BIVALVIA, 2 bodegensis, Tellina, 40 Bornia, 27 BORNIINAE, 27 Botula, 11, 12 bourgeoisae, Tagelus, 45 Brachidontes, 10 bramkampi, Barbatia, 7 brandtii, Area, 7 branneri, Crassinella, 20 bresia, Ostra, 14 brevifrons, Entodesma, 53 brevifrons, Lunarca, 8 brevifrons, Pandora, 52 brevilineata, Venus, 35 brevirostris, Tellina, 40 broggi, Anomalocardia, 35 broggi, Chione, 35 broggii, Solecurtus, 45 buddiana, Chama, 29 bullata, Cyrena, 21 bushae, Ledella, 5 Bushia, 54

busoensis, Cryptomya, 49 byronensis, Tivela, 32 caelatum, Phlyctiderma, 25 caelatus, Donax, 43 caesarina, Cytherea, 31 caianensis, Donax, 43

calbucana, Mactra, 32 calcar, Spinula, 5 calcarella, Leda, 5 calcifer, Spondylus, 18 calculus, Lucina, 25 californiana, Dimya, 15 californiana, Venus, 35 californianus, Mytilus, 9 californianus, Tagelus, 45 californica, Abra, 48 californica, Arcinella, 29 californica, Cardiomya, 55 californica, Codakia, 23 californica, Cryptomya, 49 californica, Gari, 44 californica, Gouldia, 32 californica, Grippina, 50 californica, Lyonsia, 53 californica, Mactra, 38 californica, Ostrea, 15 californica, Semele, 45 californicus, Donax, 43, 44 californicus, Ensis, 48 californiensis, Chione, 35 callamensis, Tellina, 40 callicomatus, Pitar, 33 callimene, Saccella, 4 Calloarca, 7 Callogonia, 22 callosa, Amiantis, 34 Callucina, 22 calva, Parapholas, 51 calyculata, Lithophaga, 11, 12 Calyptogena, 22 camerella, Leptopecten, 17 camina, Mulinia, 38 camuloensis, Area, 7 canalifera, Lithophaga, 11 cancellaris, Linga, 23 candeana, Avicula, 14 canoa, Tucetona, 9 capax, Modiolus, 12 cardara, Ennucula, 3 CARDIACEA, 30 cardiformis, Cyrena, 21 CARDIIDAE, 30 cardilla, Nioche, 37 CARDINIIDAE, 20 Cardiomya, 55 Cardita, 20, 21 CARDITACEA, 20 Carditamera, 21 CARDITAMERINAE, 21 Cardites, 21 CARDITESINAE, 21 CARDITIDAE, 20 CARDITINAE, 20

carditoides, Rupellaria, 37 caribaea, Pholas, 51 carinata, Mactrellona, 38 carinatus, Donax, 43 carinulata, Mactra, 38 carlottensis, Macoma, 41 carlottensis, Nucula, 3 carnea, Thracia, 41 carpenteri, Periploma, 53 carpenteri, Tellina, 39 Caryocorbula, 49 caryonautes, Transennella, 32 casta, Psammobia, 42 casta, Tellina, 42 catalinae, Erycina, 26 catharius, Pitar, 34 Cavilinga, 22 cayennensis, Donax, 43 cecinella, Yoldiella, 5 centrifuga, Lucina, 22 cepio, Pododesmus, 19 cerritensis, Aligena, 28 cerritensis, Pecten, 17 cerrosensis, Ostrea, 15 Cetoconcha, 55 chacei, Erycina, 28 Chama, 28 CHAMACEA, 28 CHAMIDAE, 28 chemnitzii, Anadara, 8 chenuanus, Mytilis, 11 chenui, Gregariella, 11 chiclaya, Bornia, 27 chilensis, Chama, 29 chilensis, Cuspidaria, 55 chiloensis, Pholas, 50 Chion, 43 Chione, 35 CHIONINAE, 35 Chionista, 35 Chionopsis, 36 chiquita, Ctena, 24 Chlamys, 16 chlorotica, Teredo, 51 Choromytilus, 10 chrysosoma, Nucula, 3 cicercula, Strigilla, 42 cieba, Bankia, 52 ciliatus, Spondylus, 18 cinnamomea, Modiola, 12 CIRCINAE, 32 Circomphalus, 32 circularis, Argopecten, 16 cistula, Lasaea, 26 clarionense, Laevicardium, 31 clarionensis, Ctena, 24 clarionensis, Pseudochama, 29

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THE FESTIVUS

Vol. XXII (Suppl. 2 to 1990)

clavata, Pholas, 51 claviculata, Pandora, 52 Clementia, 34 dementia, Crassinella, 20 Clementina, Mysella, 27 CLEMENTINIINAE, 34 clementinum, Lepton, 54 Clidiophora, 52 clippertonensis, Ctena, 24 clydosa, Semele, 46 coani, Tellina, 39 coarctata, Crenella, 11 coccineus, Spondylus, 18 Codakia, 23, 24 coelata, Verticordia, 56 cognata, Leporimetis, 41 cognata, Petricola, 37 cognata, Temnoconcha, 42 cokeri, Aligena, 27 colombiana, Ennucula, 3 Colonche, 37 coloradoensis, Mulinia, 38 colpoica, Amerycina, 26 colpoica, Asthenothaerus, 54 columbiensis, Crassostrea, 15 columbiensis, Protothaca, 37 columbiensis, Psammotreta, 42 compacta, Chama, 29 compactus, Pecten, 16 compressa, Mysella, 28 compressa, Pseudopythina, 26 compressa, Tindaria, 5 compressus, Limopsis, 9 Compsomyax, 34 compta, Chione, 35 concentrica, Woodia, 24 conchaphila, Ostreola, 15 Conchocele, 25 concinna, Anadara, 7 concinna, Tellina, 42 concinnus, Pitar, 33 conradi, Donax, 43 conradi, Leukoma, 36 consanguineus, Pitar, 33 consors, Trachycardium, 30 contusus, Donax, 43 coquimbana, Mactra, 32 coquimbensis, Solecurtus, 45 corallina, Chama, 29 coralliophaga, Gregariella, 11 CORBICULACEA, 21 CORBICULIDAE, 21 Corbula, 49 CORBULIDAE, 49 cornea, Felaniella, 25 cornuta, Pandora, 52 corpulenta, Area, 8

corpulenta, Bathyarca, 8 corrugata, Pseudochama, 30 corrugata, Semele, 46 cortezi, Chione, 35 corteziensis, Crassostrea, 15 corteziensis, Ostrea, 15 costaricensis, Semele, 47 costata, Cardiomya, 55 costellata, Nuculana, 4 Costelloleda, 4 coumbiana, Megacrenella, 11 coxa, Crassinella, 20 craneana, Semele, 46 crassa, Hinnita, 16 crassa, Ledella, 5 Crassadoma, 16 CRASSATELLACEA, 19 CRASSATELLIDAE, 19 CRASSATELLINAE, 19 crassatelloides, Cytherea, 32 crassicostata, Cardites, 21 Crassinella, 20 crassiplicatus, Pecten, 16 Crassostrea, 15 CRASSOSTREINI, 15 Crenella, 10 CRENELLINAE, 10 crenifera, Adrana, 4 crenifera, Chionopsis, 36 Cricoploma, 53 cristagalli, Mytilus, 14 cristallina, Tellina, 40 cristulata, Tellidorella, 20 croceum, Amphidesma, 46 crucifera, Cyrtopleura, 50 crucigera, Cyrtopleura, 50 cruda, Cardita, 20 cruentatum, Cardium, 31 Cryptomya, 49 Ctena, 23, 24 Cucullaearca, 7 CULTELLIDAE, 48 culter, Donax, 43 cultrata, Amerycina, 26 Cumingia, 48 cumingianus, Mytilus, 10 cumingii, Cyrena, 21 cumingii, Nemocardium, 31 cumingii, Pinna, 13 cumingii, Placunanomia, 19 cumingii, Scintilla, 27 cumingii, Tellina, 40, 41 Cunearca, 7 cuneata, Malletia, 6 cuneata, Minormalletia, 6 cuniformis, Martesia, 51 cupula, Pholas, 51

curta, Diplothyra, 51 curta, Thracia, 27, 54 curtus, Donax, 43 Cuspidaria, 55 CUSPIDARIIDAE, 55 CYAMIACEA, 28 Cyathodonta, 54 cyclia, Adontorhina, 25 Cyclinella, 34 CYCLININAE, 34 Cyclocardia, 21 Cyclopecten, 16 cylista, Botula, 12 Cymatioa, 26 Cymatoica, 41 Cyrtopleura, 50 Dacrydium, 13 dalli, Limopsis, 9 dalli, Ostra, 14 dalli, Pseudochama, 30 Dallocardia, 30 darella, Nucula, 3 darwinii, Venus, 36 decisa, Semele, 46 declivis, Nucula, 3 decora, Psammobia, 45 decumbens, Tellina, 39 decussata, Eurhomalea, 35 Delectopecten, 16 delesserti, Chama, 29 delessertii, Glycymeris, 9 delessertii, Tivela, 32 delgada, Noetia, 8 delosi, Pecten, 17 Dendostrea, 14 densata, Mulinia, 38 densilineata, Lucinoma, 24 denticulata, Gastrochaena, 50 denticulata, Gregariella, 11 denticulata, Rupellaria, 37 dentifer, Donax, 43 Dermatomya, 55 destructa, Bankia, 52 diaphana, Lyonsia, 53 Diberus, 11 dicella, Yoldiella, 5 dichotoma, Strigilla, 42 didyma, Cardiomya, 56 diegensis, Asthenothaerus, 54 diegensis, Flabellipecten, 17 diegensis, Mytilus, 10 diegensis, Pecten, 16 diegensis, Teredo, 51 diegensis, Thracia, 54 digueti, Chama, 29 digueti, Crassatella, 20 Dimya, 15

Vol. XXII (Suppl. 2 to 1990)

DIMYACEA, 15 DIMYIDAE, 15 diomedae, Acesta, 18 dionaea, Mysella, 27 Diplodonta, 25 Diplothyra, 51 discors, Petricola, 35 discrepans, Phlyctiderma, 25 discus, Periploma, 53 disjuncta, Strigilla, 42 dispar, Venus, 36 distans, Artemis, 34 distinguenda, Codakia, 23 Divalinga, 24 divaricalx, Lithophaga, 11 divaricata, Barbatia, 6 divaricata, Crenella, 10 Divaricella, 24 DIVARICELLINAE, 24 diversa, Tapes, 36 dolabriformis, Mactra, 38 dombei, Leporimetis, 41 dombeii, Tagelus, 45 domingensis, Barbatia, 6 domingensis, Dreissena, 22 DONACIDAE, 42 Donax, 42, 44 Dosinia, 34 DOSINIINAE, 34 draperi, Bushia, 54 DREISSENACEA, 22 DREISSENIDAE, 22 dryas, Nausitora, 52 dubia, Cymatioa, 26 dubiosa, Cyathodonta, 54 duchassaingi, Jouanetia, 51 dunkeri, Dosinia, 34 duplicata, Cytherea, 32 eburnea, Divalinga, 24 eburnea, Saccella, 4 eburnea, Solecardia, 27 eburnea, Tellina, 39 eccentrica, Cytherea, 32 echinata, Chama, 29 Ectenagena, 22 ecuabula, Corbula, 49 ecuadoriana, Cardiomya, 56 ecuadoriana, Crassinella, 20 ecuadoriana, Protothaca, 37 ecuadoriana, Tellina, 39 ecuadorianus, Donax, 43 edentula, Gari, 44 edentuloides, Pegophysema, 24 edulis, Macoma, 42 edulis, Mytilus, 10 edulis, Mytilus, 10 Egesta, 34

THE FESTIVUS

Egeta, 21

elatum, Laevicardium, 31 electilis, Cymatioa, 26 elegans, Harvella, 38 elegans, Tivela, 32 Elegantula, 47 elegantulum, Dacrydium, 13 elenense, Laevicardium, 31 elenensis, Corbula, 49 elenensis, Saccella, 4 elliptica, Semele, 46 ellipticum, Lepton, 27 ellipticus, Irus, 35 Elliptotellina, 39 elongata, Tellina, 41 Elpidollina, 39 elytrum, Macoma, 41 emarginata, Anadara, 8 Ennucula, 3 Ensis, 48 Entodesma, 53 Epilucina, 23 equatorialis, Poromya, 55 errati, Tellina, 40 ERYCINIDAE, 26 ERYCINIINAE, 26 esmeralda, Anadara, 7 esmeralda, Corbula, 49 Esmerarca, 7 estrellana, Mactra, 38 Eucrassatella, 19 Eucrassinella, 19 Eurhomalea, 35 Eurytellina, 39 euterpes, Leptopecten, 17 exarata, Petricola, 37 exaratus, Mytilus, 10 excavata, Conchocele, 25 excavata, Here, 23 excavata, Leda, 4 excolpa, Nausitora, 52 exigua, Nucula, 3 exilis, Cyrtopleura, 50 exilis, Mytilus, 10 eximia, Avicula, 13 eximia, Venus, 36 exogyra, Pseudochama, 30 exoleta, Mactrellona, 38 exoptata, Adrana, 4 expansa, Ostrea, 15 exquisita, Pholadidea, 51 exquisitus, Cyclopecten, 16 fasciculatum, Pseudamussium, 18 fastigata, Saccella, 4 fausta, Lucina, 23 favanni, Modiole, 12 Felaniella, 25

Page 67

felix, Tellina, 39 fenestrata, Lucina, 23 fidenas, Anomia, 19 filitexus, Pecten, 16 fimbriata, Venerupis, 35 flora, Malletia, 6 fisheri, Ostrea, 14 Flabellipecten, 16 flavescens, Semele, 46 floridana, Teredo, 51 Florimetis, 41 fluctifraga, Chione, 35 fluctigera, Tellina, 40 foliatus, Pododesmus, 19 folini, Gastrochaena, 50 folium, Dendostrea, 14 fonsecana, Mactra, 38 fontaineaus, Mytilis, 11 fontaineii, Polymesoda, 21 fordi, Globivenus, 32 forficata, Lithophaga, 11 formosa, Anadara, 8 formosa, Semele, 46, 47 fornicata, Chama, 29 fragilis, Martesia, 51 fragilis, Pecten, 17 fragilis, Sphenis, 49 FRAGINAE, 31 frankbernardi, Spheniopsis, 50 frizzelli, Pitar, 33 frondosa, Chama, 29 frons, Mytilus, 14 fucata, Tellina, 44 fucicolus, Pecten, 17 Fugleria, 7

funiscola, Martesia, 51 fusca, Botula, 12 galapagana, Bushia, 54 galapagana, Ctena, 24 galatheae, Kelliella, 22 GALEOMMATACEA, 25 GALEOMMATIDAE, 25 Galeommella, 26 galera, Cyclinella, 34 galloprovincialis, Mytilus, 10 gallus, Ostrea, 15 Gari, 44

garretti, Myonera, 56 garthi, Chama, 29 Gastrochaena, 50 GASTROCHAENACEA, 50 GASTROCHAENIDAE, 50 gibbosa, Eucrassatella, 20 gibbosa, Leda, 4 gibbosa, Nucula, 4 gibbosa, Nuculana, 4 gibbosa, Raeta, 38

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THE FESTIVUS

Vol. XXII (Suppl. 2 to 1990)

gibbosus, Saxidomus, 34 gigantea, Crassadoma, 16 gigantea, Glycymeris, 9 giganteus, Hinnites, 16 gigas, Calyptogena, 22 Globivenus, 31 globosa, Xylophaga, 51 glomeratus, Mytilus, 10 gloriosus, Spondylus, 18 GLOSSACEA, 22 GLYCYMERIDACEA, 9 GLYCYMERIDIDAE, 9 Glycymeris, 9 gnidia, Chionopsis, 36 Gobraeus, 44 goldbaumi, Crassinella, 20 gouldi, Bankia, 52 Gouldia, 32 gouldii, Angulus, 39 gouldii, Donax, 44 gouldii, Lyonsia, 53 gouldii, Tellina, 39 gracilior, Lithophaga, 11 gracilis, Amphichaena, 43 gracilis, Donax, 44 gracilis, Petricola, 37 gracillima, Clementia, 34 gradata, Barbatia, 6 Grandiarca, 8 grandis, Anadara, 8 grandis, Dosinia, 34 grandis, Macoma, 41 grandis, Sanguinolaria, 45 granifera, Donax, 42, 43 granifera, Trigoniocardia, 31 granti, Pseudochama, 30 granulata, Pandora, 53 grata, Protothaca, 37 graui, Cyclopecten, 16 grayi, Cardites, 21 Gregariella, 11 grewingkii, Protothaca, 36 grippi, Mysella, 27 Grippina, 50 GRYPHAEIDAE, 14 guadalupensis, Glycymeris, 9 guanacastensis, Trachycardium, 31 guanica, Pleuromeris, 21 guatulcoensis, Chione, 35 guaymasensis, Semele, 47, 48 guaymasensis, Solecurtus, 45 gundlachii, Dreissenia, 22 guyanensis, Mytella, 10 haasi, Cuspidaria, 55 Halicardia, 56 Haliris, 56 Halistrepta, 53

Halodakra, 28 hamata, Nuculana, 4 hancocki, Lithophaga, 12 hancocki, Oppenheimopecten, 17 hancocki, Verticordia, 56 haroldi, Lyonsia, 53 Harvella, 38 hawaiensis, Area, 6 hawaiensis, Botula, 12 hawaiensis, Cardita, 20 hawaiensis, Spondylus, 18 hawaiensis, Teredo, 51 hawaiiensis, Martesia, 51 haylocki, Crassinella, 20 healdi, Psiloteredo, 52 helenae, Gari, 44 helenae, Pitar, 33 hemphilli, Limaria, 19 Here, 23 Hertellina, 40 hertleini, Basterotia, 28 hertleini, Pitar, 33 hertleini, Semele, 48 hertleini, Tellina, 39 hesperius, Pitar, 33 hesperus, Macoma, 41 Heterodonax, 45 HETERODONTA, 19 Hexacorbula, 49 hians, Tivela, 32 Hiatella, 50 HIATELLACEA, 50 HIATELLIDAE, 50 hiberna, Tellina, 39 hiloensis, Teredo, 51 hindsii, Saccella, 4 Hinnites, 16 hoffstetteri, Mactra, 38 Huxleyia, 3

hyalina, Gastrochaena, 50 Hyalopecten, 17 Hybolophus, 19 hyotis, Hyotissa, 14 Hyotissa, 14 HYOTISSINI, 14 hyphalopilema, Anadara, 8 Hyphantosoma, 33 Hysteroconcha, 33 hystrix, Spondylus, 18 Iliochione, 35 illota, Fugleria, 7 imitata, Area, 8 impar, Saccella, 4 inaequivalvis, Area, 7 inaequivalvis, Periploma, 53 incantata, Chlamys, 16 incisus, Isognomon, 14

incongrua, Semele, 47 incongruus, Cyclopecten, 16 incrassatus, Cardita, 21 incurva, Lithophaga, 11 indentata, Macoma, 42 inequalis, Thracia, 53 inequivalve, Periploma, 53 inermis, Chama, 30 inezana, Plicatula, 15 inezensis, Diplodonta, 25 inflata, Bornia, 27 inflata, Crenella, 10 inflata, Lyonsia, 53 inflata, Polymesoda, 21 inflatum, Entodesma, 53 infra, Botulopa, 12 inopia, Mya, 49 insculpta, Tellina, 40 insignis, Cyrena, 21 intermedius, Pectunculus, 9 interrupta, Cytherea, 32 interrupta, Strigilla, 42 intersecta, Venus, 37 intusgranosa, Mesopholas, 51 Iphigenia, 44 iphigenia, Nucula, 3 ira, Corbula, 49 irridescens, Ostrea, 15 Irus, 35

isocardia, Globivenus, 32 isocardia, Ventricolaria, 32 ISOFILIBRANCHLA, 9 Isognomon, 13 ISOGNOMONIDAE, 13 isolirata, Cardiomya, 56 Isorobitella, 28 Ixartia, 54 jadisi, Cyclinella, 34 jamaniana, Chione, 36 jamaniana, Chionopsis, 36 jamesi, Semele, 47 janus, Isognomon, 13 janus, Pseudochama, 30 jaramija, Semele, 48 joannis, Phacoides, 24 johnsoni, Acharax, 2 Jouannetia, 51 JOUANNETIINAE, 51 jovis, Semele, 47 juarezi, Limopsis, 9 Juliacorbula, 49 junonia, Semele, 47, 48 Jupiteria, 4

kamtschatica, Cryptomya, 49 Katadesmia, 6 kazusensis, Psammobia, 44 kellettii, Chione, 35

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THE FESTIVUS

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Kellia, 27 Kelliella, 22 KELLIELLIDAE, 22 KELLIIDAE, 27 KELLIINAE, 27 kelseyi, Lithophaga, 11 kindermanni, Donax, 43 knoxi, Nototeredo, 52 kolthoffi, Portlandia, 6 kuaiensis, Spondylus, 18 kussakini, Mytilus, 10 labiosa, Anadara, 8 Labis, 11 Laciolina, 40 lactea, Tellimya, 27 LAEVICARDIINAE, 31 Laevicardium, 30, 31 laevigata, Leinosolenus, 12 laevigatus, Donax, 44 laevis, Crassatella, 20 laevis, Semele, 47 lamellata, Tellina, 47 Lamelliconcha, 33 lamellifera, Venus, 35 Lamellinucula, 3 lamellosa, Cumingia, 48 lampra, Lucina, 22 lamproleuca, Macoma, 41 lanieri, Cardiomya, 56 laperoussii, Chironia, 27 laperoussii, Kellia, 27 laplata, Tellina, 40 laqueata, Anomia, 19 largatillum, Periploma, 53 Larkinia, 7 larkinii, Area, 8 laronus, Crassatellites, 20 Lasaea, 26 LASAEINAE, 26 latiaurata, Leptopecten, 17 latiauritus, Pecten, 17 laticaudata, Ostrea, 15 laticostata, Cardites, 21 latissimus, Mytilus, 10 lavezzarii, Globivenus, 32 laysana, Area, 6 laysana, Botula, 12 laysana, Cardita, 21 leana, Semele, 48 lecontei, Gnathodon, 39 Ledella, 5 Ledellina, 5 LEDELLINAE, 5 lediforme, Lepton, 27 Leiomya, 56 Leionucula, 3 Leiosolenus, 12

lenticulare, Periploma, 53 lenticularis, Semele, 46 Lentidium, 49 leonilda, Yoldiella, 5 lepida, Cytherea, 33 lepidoformis, Tryphomyax, 26 Leporimetis, 41 Lepton, 27 Leptonidae, 26, 27 Leptopecten, 17 lessonii, Tivela, 32 leucocymoides, Linga, 23 leucophaeta, Mytilopsis, 22 Leukoma, 37 liana, Lucina, 22 libella, Avicula, 13 lieberkindi, Teredo, 52 ligamentina, Tellina, 42 Lima, 18 LIMACEA, 18 Limaria, 19 limata, Leda, 4 Limatula, 19 limatula, Anomia, 19 limbatus, Spondylus, 18 LIMIDAE, 18 LIMOIDA, 18 LIMOPSACEA, 9 LIMOPSIDAE, 9 Limopsis, 9 lindea, Spondylus, 18 lineatus, Solecurtus, 45 Linga, 23

linguaefelis, Spondylus, 18 lingualis, Lucina, 22 linki, Ennucula, 3 lintea, Glycymeris, 9 Lioberus, 11 Lirophora, 35 Lithophaga, 11 LITHOPHAGINAE, 11 lobula, Neilonella, 6 longisinuatus, Tagelus, 45 LOPHINAE, 14 LOPHINI, 14 Lophocardium, 31 loshka, Nuculana, 4 lowei, Chlamys, 16 lucasana, Cyathodonta, 55 lucasana, Neilonella, 6 lucasana, Petricola, 37 lucasanum, Entodesma, 53 Lucina, 22, 23 LUCINACEA, 22 LUCINIDAE, 22 LUCININAE, 22 Lucinoma, 24

Lunarca, 8 lunaris, Pecten, 17 lupanaria, Pitar, 33 lurida, Barbatia, 6 lurida, Ostrea, 15 luteobrunea, Cytherea, 32 luteola, Corbula, 49 luticola, Bornia, 27 luticola, Sphenia, 49 Lyonsia, 53 Lyonsiella, 56 LYONSIIDAE, 53 lyra, Tellina, 40 Lyratellina, 40 Lyrodus, 51

maegintyi, Protothaca, 37 Machaerodonax, 43 Macoma, 41

macroschisma, Pododesmus, 19 Mactra, 38 MACTRACEA, 38 Mactrellona, 38 MACTRIDAE, 38 Mactroderma, 38 mactroides, Poromya, 55 Mactromeris, 39 Mactrotoma, 38 maculata, Glycymeris, 9 magdalenae, Globivenus, 32 magnifica, Calyptogena, 22 magnifica, Lyonsiella, 56 magnificus, Nodipecten, 17 maldonadoensis, Crassinella, 20 MALLEIDAE, 14 Malletia, 6 MALLETIIDAE, 6 Malleus, 14

malpelonium, Amusium, 18 Malvufundus, 14 manabiensis, Crassinella, 20 manabiensis, Eucrassinella, 20 mancorensis, Donax, 43 mantaensis, Papyridea, 30 mantaensis, Tellina, 40 mantana, Yoldiella, 5 MANZANELLACEA, 3 marella, Nuculana, 4 margarita, Bernardina, 28 margarita, Merisca, 40 margaritaceum, Periploma, 53 marginata, Tivela, 32 mariae, Chione, 35 marincovichi, Donax, 44 maritima, Cyrena, 21 marmorata, Corbula, 49 Martesia, 51 MARTESIINAE, 51

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THE FESTIVUS

Vol. XXII (Suppl. 2 to 1990)

martyria, Megayoldia, 5 maura, Atrina, 13 maxima, Gari, 44 mazatlanica, Anadara, 7 mazatlanica, Parvilucina, 23 mazatlanica, Pinctada, 13 mazatlanica, Psammotreta, 42 media, Leda, 4 Megacrenella, 11 Megapitaria, 34 megas, Crenella, 11 megastropha, Strophocardia, 21 Megayoldia, 5 megodon, Undulostrea, 15 Melina, 13 mendica, Rangia, 39 Mercenaria, 36 MERETRICINAE, 32 meridioale, Propeamussium, 18 Merisca, 40 meropsis, Tellina, 39 Mesopleura, 45 messanensis, Ledella, 5 metodon, Protothaca, 37 mexicana, Chama, 29 mexicana, Crassinella, 20 mexicana, Ctena, 24 mexicana, Myonera, 56 mexicana, Polymesoda, 21 mexicana, Tindaria, 6 mexicana, Xylophaga, 51 mexicanum, Dendostrea, 14 mexicanus, Pitar, 34 mexicanus, Tryphomyax, 26 Mexicardia, 30 Microcardium, 31 Micromactra, 38 Miltha, 24 Milthinae, 24 mimus, Spondylus, 18 Minormalletia, 6 miraflora, Teredo, 52 modesta, Mulinia, 38 modesta, Transenella, 32 modestum, Cardium, 31 MODIOLINAE, 12 Modiolus, 12 moerchiana, Dreisseia, 22 Monia, 19

monotimeris, Pecten, 17 MONTACUTIDAE, 27 montereyi, Semele, 47 montezuma, Chione, 36 montezuma, Chionopsis, 36 mucronata, Diberus, 11 Mulinia, 38

multicostata, Anadara, 7

multicostata, Periglypta, 31 multicostata, Tucetona, 9 multiformis, Brachidontes, 10 multiradiata, Cytherea, 32 multirugosus, Hinnites, 16 multirugosus, Pecten, 16 multispinosus, Pitar, 33 mundulus, Venus, 36 munita, Nucinella, 3 muris, Pseudopythina, 26 mutabilis, Area, 6 mutabilis, Modiola, 10 MYACEA, 49 MYIDAE, 49 MYINA, 49 Myoforceps, 11 MYOIDA, 49 Myonera, 56 myrae, Halistrepta, 54 Myrakeena, 14 MYRAKEENINI, 14 Myrteinae, 24 MYRTENIDAE, 24 Mysella, 27 MYSELLINAE, 27 Mytella, 10 MYTILACEA, 9 MYTILIDAE, 9 MYTILINAE, 9 MYTILOIDA, 9 Mytilopsis, 22 Mytilus, 9

nana, Cuspidaria, 49 nanus, Artemis, 34 nasuta, Corbula, 49 nasuta, Mactra, 38 Nausitora, 52 navicula, Donax, 44 Neaeromya, 26 neglecta, Venus, 35, 37 neglectus, Modiolus, 12 Neilo, 6 Neilonella, 6 NEILONELLIDAE, 6 Nemocardium, 31 Neobankia, 52

neoceanicus, Hyalopecten, 17 Neocyrena, 21

newcombei, Pododesmus, 19 newcombianus, Pitar, 33 newsomi, Pecten, 16 nicaraguana, Polymesoda, 21 nicobaricus, Spondylus, 18 nicoyana, Tellina, 40 Nioche, 36, 37 nitidissima, Siliquaria, 45 nitidus, Ensis, 48

nobilis, Cytherea, 34 Nodipecten, 17 noemi, Cypricardia, 37 Noetia, 8 NOETIIDAE, 8 NOETIINAE, 8 normalis, Mytilus, 10 Notochione, 37 Nototeredo, 52 novemcostatus, Hippagus, 56 nucea, Aligena, 27 nucicola, Mesopholas, 51 nuciformis, Corbula, 49 Nucinella, 3 NUCINELLIDAE, 3 NUCINELLINA, 3 nucleator, Area, 8 Nucula, 3 NUCULACEA, 3 Nuculana, 4 NUCULANACEA, 4 NUCULANIDAE, 4 NUCULANINAE, 4 NUCULIDAE, 3 nuculiformis, Crassinella, 20 NUCULINAE, 3 NUCULOIDA, 3 Nuculoma, 3 NUCULOMINAE, 3 nuttalli, Lucina, 23 nuttalli, Pinna, 13 nuttalli, Vulsella, 14 Nuttallia, 45 nuttallii, Nuttallia, 45 nux, Anadara, 7 obesa, Anadara, 7 obesa, Leporimetis, 41 obesulus, Donax, 43 obesus, Donax, 43, 44 obliqua, Aligena, 27 obliqua, Clementia, 34 obliqua, Felaniella, 25 obliqua, Orobitella, 28 obliqua, Solecardia, 27 obliqua, Tellina, 47 obliquus, Solen, 48 obliterata, Chione, 35 oblonga, Orobitella, 28 oblonga, Petricola, 35 oblongus, Pristes, 28 obovalis, Trachycardium, 31 obsoletus, Septifer, 10 obtusa, Bornia, 27 obtusa, Periploma, 53 obvolutus, Malleus, 14 ochracea, Cytherea, 32 ochracea, Lucina, 23

Vol. XXII (Suppi. 2 to 1990)

ochracea, Tellina, 40 Odoncineta, 54 oldroydii, Atrina, 13 olivacea, Ledellina, 5 olssoni, Chionopsis, 36 olssoni, Rupellaria, 38 Oppenheimopecten, 17 orbella, Diplodonta, 25 orbiculata, Area, 8 orbiculata, Bathyarca, 8 orbignyi, Limaria, 19 orcutti, Bankia, 52 orcutti, Sanguinolaria, 45 oregonensis, Cryptomya, 49 ornata, Saccella, 4 ornata, Verticordia, 56 ornatissima, Chionopsis, 36 Orobitella, 27, 28 OROBITELLINAE, 28 Orthoyoldia, 5 Ostrea, 15 OSTREACEA, 14 OSTREIDAE, 14 OSTREINA, 14 OSTREINAE, 15 OSTREINI, 15 OSTREOIDA, 14 Ostreola, 15 ovalina, Mactra, 38 ovalis, Mytilus, 10 ovalis, Sanguinolaria, 45 ovalis, Vesicomya, 22 ovata, Gastrochaena, 50 ovata, Glycymeris, 9 ovulata, Corbula, 49 oxia, Saccella, 4 Pachydesma, 32 pacifica, Area, 6 pacifica, Chama, 29 pacifica, Crassinella, 20 pacifica, Cumingia, 48 pacifica, Limaria, 19 pacifica, Semele, 48 pacifica, Tellina, 39 pacificus, Heterodonax, 45 pacificus, Modiolus, 12 Pacipecten, 17 pallida, Mulinia, 38 pallida, Semele, 46, 47 pallidulum, Amygdalum, 12 palliopunctatus, Choromytilus, 10 palmeri, Abra, 48 palmeri, Leptopecten, 17 palmula, Saccostrea, 15 panamense, Nemocardium, 31 panamense, Trachycardium, 30 panamensis, Adula, 12

THE FESTIVUS

panamensis, Bushia, 54 panamensis, Cuspidaria, 55 panamensis, Cyrena, 21 panamensis, Dacrydium, 13 panamensis, Donax, 42, 43 panamensis, Gari, 44 panamensis, Macoma, 41 panamensis, Malleus, 14 panamensis, Orthoyolida, 5 panamensis, Pseudochama, 30 panamensis, Solemya, 2 panamensis, Tindaria, 6 panamensis, Uperotus, 52 panamina, Ennucla, 3 Pandora, 52 PANDORACEA, 52 Pandorella, 52 PANDORIDAE, 52 Paphonotia, 35 papyracea, Bornia, 27 papyracea, Rhamphidonta, 27 Papyridea, 30 Paradonax, 44 Parahyotissa, 14 parallela, Petricola, 37 Parapholas, 51 parapodema, Cuspidaria, 55 parcipictus, Pectunculus, 9 parilis, Felaniella, 25 parkeri, Cuspidaria, 55 parmaleeana, Bellascintila, 26 parmaleeana, Bellascintilla, 26 Particoma, 51 Parvilucina, 23 patagonica, Acesta, 18 patagonica, Cuspidaria, 55 patheonensis, Area, 8 pauciradiata, Cytherea, 32 paytensis, Nucula, 3 paytensis, Pitar, 33 pazensis, Solen, 48 paziana, Semele, 46, 47 pazianum, Nemocardium, 31 peabodyi, Chione, 35 PECTINACEA, 16 pectinata, Cardiomya, 56 pectinata, Pholadopsis, 51 PECTINIDAE, 16 PECTINNA, 16 pectunculoides, Venus, 36 pedernalense, Laevicardium, 31 pedicellatus, Lyrodus, 51 pedroana, Callista, 34 pedroana, Cyathodonta, 54, 55 pedroanus, Mytilus, 10 Pegmapex, 25 Pegophysema, 24

Page 71

pelagica, Limopsis, 9 pellucida, Chama, 28, 29 pellucida, Malletia, 6 penascoensis, Adrana, 5 penicillata, Plicatula, 15 peninsularis, Basterotia, 28 pentadactylus, Albimanus, 53 Peplum, 18 percea, Spondylus, 18 perfragilis, Pitar, 33 Periglypta, 31 Periploma, 53 PERIPLOMATIDAE, 53 perla, Poromya, 55 perlabiata, Anadara, 7 pernoides, Pododesmus, 19 pernomus, Cyclopecten, 16 Peronidia, 40 perparvula, Divalinga, 24 perplicata, Halicardia, 56 peruanus, Tagelus, 45 perulus, Oppenheimopecten, 17 peruviana, Anomia, 19 peruviana, Cyrena, 21 peruviana, Galeommella, 26 peruviana, Labis, 11 peruviana, Nuculana, 4 peruviana, Petricola, 38 peruviana, Venerupis, 38 peruvianus, Donax, 43, 44 peruvianus, Tagelus, 45 petalina, Donax, 43 petallina, Donax, 43 petittii, Venerupis, 36 Petrasma, 2 Petricola, 37 Petricolaria, 37 PETRICOLIDAE, 37 pfeifferi, Solen, 48 pfeifferi, Tichogonia, 22 phillipsi, Bushia, 54 Philobrya, 9 PHILOBRYIDAE, 9 Phlogocardia, 30 Phlycticoncha, 53 Phlyctiderma, 25 phoebe, Phlyctiderma, 25 PHOLADACEA, 50 PHOLADIDAE, 50 pholadidea, Sphenia, 49 PHOLADINA, 50 PHOLADINAE, 50 PEIOLADOM YOID A, 52 Pholadopsis, 51 Pholas, 50

Pholas, macrostoma 50 Phyllodella, 40

Page 72

THE FESTIVUS

Vol. XXII (Suppl. 2 to 1990)

Phyllodina, 40 picta, Chione, 36 picta, Timoclea, 36 pictum, Entodesma, 53 pilsbryi, Semele, 46 pilsbryii, Zirfaea, 51 pinacatensis, Venus, 36 Pinctada, 13 Pinna, 13 PINNACEA, 13 PINNIDAE, 13 PINNINA, 13 Pisostrigilla, 42 Pitar, 33 Pitarella, 34 PITARINAE, 33 pitteri, Pecten, 17 Placunanomia, 19 PLACUNIDAE, 19 planata, Modiolus, 10 planetica, Cardiomya, 56 Planitivela, 32

planiusculum, Periploma, 53 planulata, Spisula, 39 planulata, Tivela, 32 Plectodon, 56 Pleurolucina, 23 Pleuromeris, 21 Plicatula, 15 PLICATULACEA, 15 PLICATULIDAE, 15 Pliohyotissa, 14 plumula, Lithophaga, 11 Plumulella, 52 Pododesmus, 19 Policordia, 56 polita, Nuculana, 4 Politoleda, 4 politus, Tagelus, 45 pollicaris, Pitar, 33 polyleptus, Cyclopecten, 16 polyleptus, Delectopecten, 16 Polymesoda, 21 pomatia, Pecten, 16 pompholyx, Area, 8 ponderosa, Dosinia, 34 pontonia, Jupiteria, 4 porcella, Corbula, 49 Poromya, 55 POROMYACEA, 55 POROMYIDAE, 55 Portlandia, 5 Potiarca, 7 poulsoni, Hinnita, 16 princeps, Spondylus, 18 princeps, Tellina, 41 PRIONODONTA, 6

prismatica, Striostrea, 15 Pristes, 28

pristiphora, Tellina, 40 pristipleura, Acrosterigma, 30 procerum, Trachycardium, 30 producta, Chama, 29 projectans, Lithodomus, 12 prolongata, Lucina, 22 Promantellum, 19 Pronucula, 3

PROPEAMUSSIIDAE, 18 Propeamussium, 18 prora, Tellina, 40 PROTOBRANCHIA, 2 PROTOCARDIINAE, 31 Protothaca, 36, 37 Psammacoma, 41 PSAMMOBIIDAE, 44 PSAMMOBIINAE, 44 Psammotreta, 42 Pseudamussium, 18 Pseuderiphyla, 20 Pseudochama, 29 Pseudocyathodonta, 54 Pseudopythina, 26 pseudotulipus, Modiolus, 12 pseustes, Cardiomya, 56 Psiloteredo, 52 Pteria, 13 PTERIACEA, 13 PTERIIDAE, 13 PTERIINA, 13 PTERIOIDA, 13 PTERIOMORPHIA, 13 pubera, Chionopsis, 36 puelchana, Ostrea, 15 pulchella, Martesia, 51 pulchra, Semele, 47, 48 pulicaria, Chionopsis, 36 punctata, Codakia, 23 punctatostriatus, Donax, 43 punctatum, Amphidesma, 46 puntarensis, Pododesmus, 19 pura, Dione, 33 purpurascens, Chama, 29 purpurascens, Semele, 47 purpurasens, Semele, 47 purpuratus, Brachidontes, 10 purpurea, Tellina, 41 purpureochocolata, Cytherea, 32 purpurissata, Chionopsis, 36 PYCNODONTEINAE, 14 pyriformis, Leda, 4 Pythinella, 28

quadrangularis, Isognomon, 14 quadrata, Cryptomya, 49 quadratus, Isognomon, 14

Quendreda, 13 quentinensis, Crassinella, 20 quentinensis, Semele, 47, 48 quentinensis, Thracia, 54 quercinus, Parahyotissa, 14 quiba, Yoldia, 5 radians, Spondylus, 18 radiata, Carditamera, 21 radiata, Pandora, 53 radiatus, Donax, 43, 44 Raeta, 38

randolphi, Delectopecten, 16 Rangia, 39 Rangianella, 39 Rasia, 8

reclusa, Tellina, 40 recognitus, Perna, 14 rectus, Modiolus, 12 recurvata, Tellina, 39 reeveana, Barbatia, 7 reeveana, Cardita, 21 reevei, Donax, 43 regularis, Gari, 44 regularis, Semele, 46 regularis, Tellina, 48 regulus, Malleus, 14 reinharti, Anadara, 7 reversa, Noetia, 8 Rexithaerus, 42 Rhomboidella, 11 rhynchoscuta, Merisca, 40 richthofeni, Lucina, 23 rickettsi, Macoma, 42 rigida, Ventricolaria, 32 riisei, Tichogonia, 22 riocaensis, Petricola, 38 robusta, Petricola, 38 Rochefortia, 28 rogersi, Lithophaga, 11 ropan, Lithophaga, 11 rosaceus, Solen, 48 rosea, Corbula, 49 rosea, Pholas, 51 rosea, Semele, 47, 48 roseus, Pitar, 33 rositae, Pteria, 13 rossmaessleri, Tichogonia, 22 rostae, Barbatia, 6 rostratus, Donax, 42 rothi, Donax, 43 rotundata, Kellia, 27 rubrolineatum, Amphidesma, 46 rubropicta, Chama, 29 rubropicta, Semele, 46 rubroradiata, Psammobia, 44 rubrotincta, Mesodesma, 47 rubrotincta, Semele, 46

Vol. XXII (Suppl. 2 to 1990)

THE FESTIVUS

Page 73

ruderata, Tapes, 36 rudis, Solen, 48 rufipunctatus, Malleus, 14 rufoides, Ostrea, 15 rugosa, Pinna, 13 rugulosa, Gastrochaena, 50 Rupellaria, 37 rupicola, Semele, 47 rupium, Amphidesma, 47 rupium, Semele, 47 saavedrai, Pseudochama, 30 saccata, Cyclinella, 34 saccata, Streptopinna, 13 Saccella, 4 Saccostrea, 15

sajnakhaliensis, Nausitoria, 52 salanga, Pitar, 33 sallei, Mytilopsis, 22 salvadoricus, Lioberus, 11 sanctaecrucis, Phacoides, 24 sanctiblasii, Mactra, 38 Sanguinolaria, 45 SANGUINOLARIINAE, 45 santarosae, Erycina, 28 santarosae, Tellina, 40 Sarepta, 5 Saturnia, 6 scaber, Plectodon, 56 SCAMBULINAE, 20 scapha, Poromya, 55 Scapharca, 8 schencki, Nucula, 3 Scissula, 40

sechuranum, Entodesma, 53 secta, Macoma, 42 Sectiarca, 7 secticostata, Area, 7 Semele, 45, 47 SEMELIDAE, 45 semifusca, Modiola, 10 semilaevis, Brachidontes, 10 semiobliterata, Dosinia, 34 senticosum, Trachycardium, 30 septentrionalis, Mytilus, 10 Septifer, 10 serialis, Cytherea, 32 sericata, Felaniella, 25 sericeus, Flabellipecten, 17 serra, Ostra, 14 Serracorbula, 49 serrata, Strigilla, 42 serratissimus, Spondylus, 18 setosa, Philobrya, 9 Sheldonella, 8 silicula, Modiola, 12 siliqua, Macoma, 41 similaris, Limatula, 19

similis, Anadara, 7 Simomactra, 38 simplicissima, Semele, 46, 47 Simplistrigilla, 42 simulans, Tellina, 40 singleyi, Cyclinella, 34 sinuatus, Mytilus, 10 skoglundae, Crassinella, 20 Skoglundia, 54 smirna, Tindaria, 5, 6 smithi, Poromya, 55 Solecardia, 27 SOLECURTINAE, 45 Solecurtus, 45 Solemya, 2 SOLEMYACEA, 2 SOLEMYIDAE, 2 SOLEMYINA, 2 SOLEMYOIDA, 2 Solen, 48 Solena, 48 SOLENACEA, 48 SOLENIDAE, 48 soleniformis, Adula, 12 solida, Arcopsis, 8 solida, Clementia, 34 solida, Hiatella, 50 solidisima, Cytherea, 32 Solidula, 35 solidula, Petriocola, 35 sordida, Chama, 29 sowerbyi, Donax, 43 sowerbyi, Semele, 46, 47 sparsilineata, Semele, 47 spathulata, Pholas, 50 spatiosa, Leiosoleus, 12 spatiosa, Protothaca, 36 species, Mysella, 27 speciosa, Corbula, 50 speciosa, Mytella, 10 spectabilis, Lucina, 24 spectri, Macoma, 41 Sphenia, 49

SPHENIOPSIDAE, 50 Spheniopsis, 50 spiekeri, Cardium, 31 spinosa, Chama, 29 spinosa, Haliris, 56 Spinula, 5 SPINULINAE, 5 Spisula, 39

splendens, Mytilus, 12 splendidus, Lioberus, 11 SPONDYLIDAE, 18 spondylopsis, Plicatula, 16 Spondylus, 18

spongiophila, Entodesma, 53

Sportella, 26 SPORTELLIDAE, 28 spurca, Cardita, 21 squalida, Megapitaria, 34 squamosa, Chione, 36 squamosa, Thracia, 54 squamosa, Timoclea, 36 squamuligera, Chama, 29 stalderi, Pitaria, 34 staminea, Protothaca, 36 stearnsii, Periploma, 53 stearnsii, Pseudopythina, 26 stearnsii, Vesicomya, 22 sterna, Pteria, 13 strebeli, Area, 8 Streptopinna, 13 STRLARCINAE, 8 striata, Martesia, 51 strigata, Mytella, 10 strigilata, Tucetona, 9 Strigilla, 42 Striostrea, 15 STRIOSTREINI, 15 striosum, Amphidesma, 45, 47 Strophocardia, 21 stultorum, Tivela, 32 Stumpiella, 12 suavis, Vesicomya, 22 subaequilateralis, Protothaca, 37 subdiaphana, Compsomyax, 34 subdola, Nucinella, 3 subelongatus, Cardium, 30 subimbricata, Chione, 35 sublaevis, Pythinella, 28 Submantellum, 19 subnodosus, Nodipecten, 17 suborbicu laris, Kellia, 27 subquadrata, Cyclinella, 34 subquadrata, Diplodonta, 25 subquadrata, Semelina, 48 subrostrata, Nioche, 36 subrugosa, Chione, 35 substriatum, Laevicardium, 31 subtrigona, Halodakra, 28 subtruncata, Barnea, 50 subula, Lithodomus, 11 subventricosus, Pecten, 16 subviridis, Lasaea, 26 sugillata, Venus, 35 sulculosa, Paphia, 36 suprastriata, Nucula, 3 suprema, Diplodonta, 25 tabogensis, Semele, 48 taeniolata, Nucula, 3 Tagelus, 45 tamurai, Crenella, 11 TAPETINAE, 35

Page 74

THE FESTIVUS

Tedinia, 19 teevani, Periploma, 53 Tellidorella, 20 Tellina, 39 TELLINACEA, 39 Tellinella, 40 TELLINIDAE, 39 Tellinidella, 41 Temnoconcha, 42 tenebrosus, Spondylus, 18 tenuiaratus, Mytilus, 10 Tenuicorbula, 50 tenuirostris, Macoma, 42 tenuis, Corbula, 50 tenuis, Tellimya, 27 tenuistriata, Pholas, 51 tepocana, Abra, 48 TEREDINIDAE, 51 TEREDININAE, 51 Teredo, 51 tetrica, Lima, 18 thaanumi, Codakia, 23 THECODONTINAE, 28 thermophilus, Bathymodiolus, 13 Thestyleda, 4 Thovana, 50 Thracia, 54 THRACIACEA, 53 THRACIIDAE, 54 Thyasira, 25 THYASIRIDAE, 25 THYASIRINAE, 25 tibai, Solemya, 2 tillamookensis, Pecten, 16 Timoclea, 36 Tinctora, 34 tinctoria, Chama, 29 Tindaria, 5 TINDARIIDAE, 5 tirgrinus, Malleus, 14 titan, Dosinia, 34 Tivela, 32

tokunagai, Solemya, 2 tokyoensis, Martesia, 51 tortuosa, Semele, 46 tortuosus, Pitar, 33 Tosarca, 8

townsendi, Teredo, 51 TRACHYCARDIINAE, 30 Trachycardium, 30 Transennella, 32 transversus, Donax, 43 trapezoidalis, Osteodesma, 53 trapezoides, Anatina, 53 triangulata, Polymesoda, 21 tricarinata, Thyasira, 25 trigonalis, Isorobitella, 28

trigonalis, Orobitella, 28 Trigoniocardia, 31 Trigonulina, 56 triradiata, Cytherea, 32 triradiata, Venus, 35 triserialis, Cytherea, 32 troglodytes, Timoclea, 36 Tropithaca, 37 trossulus, Mytilus, 10 truncata, Gastrochaena, 50 truncata, Malletia, 6 trunculus, Sphenia, 49 Tryphomyax, 26 tuberculosa, Anadara, 7 tuberculosa, Atrina, 13 tubulifera, Ostrea, 15 Tucetona, 9 tucilla, Eucrassatella, 20 tucilla, Harvella, 38 tulipa, Modiolus, 12 tulipa, Ostrea, 15 tumaca, Corbula, 49 tumbezensis, Modiolus, 10 tumbezensis, Mytella, 10 tumbezensis, Pacipecten, 18 tumbezensis, Tellina, 39 tumbeziana, Cyathodonta, 55 tumens, Chione, 35 tumida, Sphaerella, 25 tumida, Tapes, 37 tumidior, Lithophaga, 11 tunica, Pecten, 17 turgida, Cardita, 21 turgida, Tellina, 41 typica, Rupellaria, 38 ulloana, Tellina, 40 ultima, Ledella, 5 umbonata, Mysella, 27 uncifera, Pandora, 52 undatella, Chione, 35 undatoides, Linga, 23 undulata, Cyathodonta, 55 undulata, Cymatoica, 41 undulata, Raeta, 38 Undulostrea, 15 UNDULOSTREINI, 15 UNGULINIDAE, 25 unicolor, Pitar, 33 unicolor, Spondylus, 18 uniradiata, Cytherea, 32 Uperotus, 52 ursipes, Spondylus, 18 valdiviana, Area, 7 valvulus, Solemya, 2 vanattae, Mactra, 38 variabilis, Chione, 36 varians, Crassinella, 20

Vol. XXII (Suppl. 2 to 1990)

Varicorbula, 50 variegata, Amphidesma, 47 variegata, Tellina, 39 variegatus, Angulus, 39 velata, Mactra, 38 velero, Leptopecten, 17 VENERACEA, 31 VENERIDAE, 31 VENERINAE, 31 VENEROIDA, 19 venosa, Chama, 29 Ventricolaria, 32

ventricosum, Amphidesma, 45, 46 Venus, 32

venusta, Petricola, 38 venusta, Semele, 47 verrucosa, Semele, 48 verruculastra, Semele, 46, 47 Verticordia, 56 VERTICORDIACEA, 56 VERTICORDIIDAE, 56 Vesicomya, 22 VESICOMYIDAE, 22 Viaderella, 24 victoriae, Spondylus, 18 villosior, Asthenothaerus, 54 vinaceus, Pitar, 33 vincula, Malletia, 6 violascens, Tagelus, 45 virgo, Tellina, 40 viridizona, Pteria, 13 viridotincta, Psammotreta, 42 vitreus, Cyclopecten, 16 vitreus, Delectopecten, 16 vogdesi, Oppenheimopecten, 17 volucris, Cardita, 21 vulneratus, Pitar, 34 washingtoniana, Cryptomya, 49 whiteavesi, Pecten, 16 williami, Microcardium, 31 williamsi, Mactra, 38 willisi, Antigona, 34 xantusi, Miltha, 24 Xylophaga, 51 XYLOPHAGAINAE, 51 Yoldiella, 5 YOLDIELLINAE, 5 YOLDIINAE, 5 zacae, Tellina, 41 Zemysia, 25 zeteki, Bankia, 52 zeteki, Mytilopsis, 22 zeteki, Septifer, 10 Zirfaea, 50 zonalis, Limopsis, 9 zorrita, Orobitella, 28 zorritensis, Area, 8 zorritensis, Protothaca, 37

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