The Academy of Natural Sciences, Philadelphia

Malacolog Version 4.1.1

A Database of Western Atlantic Marine Mollusca

The Academy of Natural Sciences, Philadelphia

Browse Families

 Alphabetic order Change to Systematic order

  Abyssochrysidae [Gastropoda: Uncertain] (1 species)
  Acanthochitonidae [Polyplacophora: Neoloricata] (11 species)
  Aclididae [Gastropoda: Eulimoidea] (33 species)
  Acmaeidae [Gastropoda: Lottioidea] (1 species)
  Acteonidae [Gastropoda: Architectibranchia: Acteonoidea] (29 species)
  Actinocyclidae [Gastropoda: Doridoidea] (1 species)
  Addisoniidae [Gastropoda: Lepetelloidea] (2 species)
  Aegiretidae [Gastropoda: Onchidoridoidea] (6 species)
  Aeolidiidae [Gastropoda: Aeolidioidea] (16 species)
  Aglajidae [Gastropoda: Cephalaspidea: Philinoidea] (11 species)
  Akeridae [Gastropoda: Akeroidea] (1 species)
  Akiodorididae [Gastropoda: Onchidoridoidea] (1 species)
  Alloposidae [Cephalopoda: Octopoda] (1 species)
  Amathinidae [Gastropoda: Pyramidelloidea] (3 species)
  Amphimeniidae [Aplacophora] (5 species)
  Anabathridae [Gastropoda: Rissooidea] (6 species)
  Anatomidae [Gastropoda: Scissurelloidea] (16 species)
  Ancillinae [Gastropoda: Neogastropoda: Volutoidea] (12 species)
  Annulariidae [Gastropoda: Littorinoidea] (1 species)
  Anomiidae [Bivalvia: Anomioidea] (4 species)
  Aplustridae [Gastropoda: Architectibranchia: Acteonoidea] (4 species)
  Aplysiinae [Gastropoda: Aplysioidea] (11 species)
  Aporrhaidae [Gastropoda: Stromboidea] (2 species)
  Architectonicidae [Gastropoda: Architectonicoidea] (21 species)
  Architeuthidae [Cephalopoda: Oegopsida] (1 species)
  Arcidae [Bivalvia: Arcoidea] (32 species)
  Arcticidae [Bivalvia: Euheterodonta: Arcticoidea] (1 species)
  Argonautidae [Cephalopoda: Octopoda] (3 species)
  Arminidae [Gastropoda: Arminoidea] (6 species)
  Assimineidae [Gastropoda: Rissooidea] (1 species)
  Astartidae [Bivalvia: Archiheterodonta: Astartoidea] (21 species)
  Ataphridae [Gastropoda: Trochoidea] (2 species)
  Atlantidae [Gastropoda: Pterotracheoidea] (17 species)
  Barleeiidae [Gastropoda: Rissooidea] (30 species)
  Bathydorididae [Gastropoda: Bathydoridoidea] (4 species)
  Bathymodiolinae [Bivalvia: Mytiloidea] (7 species)
  Bathyphytophilidae [Gastropoda: Lepetelloidea] (1 species)
  Bathysciadiidae [Gastropoda: Cocculinoidea] (4 species)
  Bathyteuthidae [Cephalopoda: Teuthoida] (1 species)
  Batillariidae [Gastropoda: Cerithioidea] (1 species)
  Bolitaenidae [Cephalopoda: Octopoda] (2 species)
  Bornellidae [Gastropoda: Tritonioidea] (1 species)
  Boselliidae [Gastropoda: Placobranchoidea] (3 species)
  Brachioteuthidae [Cephalopoda: Oegopsida] (3 species)
  Buccinidae [Gastropoda: Neogastropoda: Buccinoidea] (218 species)
  Bullidae [Gastropoda: Cephalaspidea: Bulloidea] (10 species)
  Bullinidae [Gastropoda: Architectibranchia: Acteonoidea] (2 species)
  Bursidae [Gastropoda: Tonnoidea] (10 species)
  Caecidae [Gastropoda: Rissooidea] (70 species)
  Caliphyllidae [Gastropoda: Limapontoidea] (7 species)
  Calliodentaliidae [Scaphopoda: Dentaliida] (1 species)
  Calliostomatidae [Gastropoda: Trochoidea] (106 species)
  Callistoplacidae [Polyplacophora: Neoloricata] (2 species)
  Calyptraeidae [Gastropoda: Calyptraeoidea] (44 species)
  Cancellariidae [Gastropoda: Neogastropoda: Cancellarioidea] (46 species)
  Capulidae [Gastropoda: Calyptraeoidea] (19 species)
  Cardiidae [Bivalvia: Euheterodonta: Cardioidea] (29 species)
  Carditidae [Bivalvia: Archiheterodonta: Carditoidea] (21 species)
  Carinariidae [Gastropoda: Pterotracheoidea] (4 species)
  Cassinae [Gastropoda: Tonnoidea] (8 species)
  Cavoliniidae [Gastropoda: Cavolinioidea] (48 species)
  Cerithiidae [Gastropoda: Cerithioidea] (23 species)
  Cerithiopsidae [Gastropoda: Triphoroidea] (95 species)
  Chaetodermatidae [Aplacophora] (7 species)
  Chaetopleuridae [Polyplacophora: Neoloricata] (12 species)
  Chamidae [Bivalvia: Euheterodonta: Chamoidea] (12 species)
  Charcotiidae [Gastropoda: Arminoidea] (3 species)
  Chilodontidae [Gastropoda: Seguenzioidea] (54 species)
  Chioninae [Bivalvia: Euheterodonta: Veneroidea] (28 species)
  Chiroteuthidae [Cephalopoda: Oegopsida] (5 species)
  Chitonidae [Polyplacophora: Neoloricata] (15 species)
  Chlamydoconchidae [Bivalvia: Euheterodonta: Galeommatoidea] (1 species)
  Chromodorididae [Gastropoda: Doridoidea] (29 species)
  Chtenopterygidae [Cephalopoda: Teuthoida] (1 species)
  Cimidae [Gastropoda: Orbitestelloidea] (1 species)
  Cingulopsidae [Gastropoda: Cingulopsoidea] (7 species)
  Circinae [Bivalvia: Euheterodonta: Veneroidea] (2 species)
  Clathurellinae [Gastropoda: Neogastropoda: Conoidea] (53 species)
  Clionidae [Gastropoda: Clionoidea] (4 species)
  Cliopsidae [Gastropoda: Clionoidea] (2 species)
  Clypeosectidae [Gastropoda: Lepetodriloidea] (1 species)
  Cocculinidae [Gastropoda: Cocculinoidea] (11 species)
  Cochlespirinae [Gastropoda: Neogastropoda: Conoidea] (33 species)
  Colloniidae [Gastropoda: Phasianelloidea] (14 species)
  Colubrariidae [Gastropoda: Neogastropoda: Buccinoidea] (5 species)
  Columbellidae [Gastropoda: Neogastropoda: Buccinoidea] (135 species)
  Condylocardiidae [Bivalvia: Archiheterodonta: Carditoidea] (5 species)
  Conidae [Gastropoda: Neogastropoda: Conoidea] (140 species)
  Coralliophilinae [Gastropoda: Neogastropoda: Muricoidea] (21 species)
  Corambidae [Gastropoda: Onchidoridoidea] (2 species)
  Corbiculidae [Bivalvia: Euheterodonta: Corbiculoidea] (4 species)
  Corbulidae [Bivalvia: Euheterodonta: Myoidea] (15 species)
  Cornirostridae [Gastropoda: Valvatoidea] (3 species)
  Costellariidae [Gastropoda: Neogastropoda: Volutoidea] (36 species)
  Cranchiidae [Cephalopoda: Oegopsida] (15 species)
  Crassatellidae [Bivalvia: Archiheterodonta: Crassatelloidea] (11 species)
  Crassispirinae [Gastropoda: Neogastropoda: Conoidea] (92 species)
  Crenellinae [Bivalvia: Mytiloidea] (21 species)
  Cuspidariidae [Bivalvia: Euheterodonta: Cuspidarioidea] (71 species)
  Cyamiidae [Bivalvia: Euheterodonta: Cyamioidea] (8 species)
  Cyclininae [Bivalvia: Euheterodonta: Veneroidea] (1 species)
  Cycloteuthidae [Cephalopoda: Oegopsida] (3 species)
  Cylichnidae [Gastropoda: Cephalaspidea: Philinoidea] (38 species)
  Cylindrobullidae [Gastropoda: Cylindrobulloidea] (2 species)
  Cymbuliidae [Gastropoda: Cymbulioidea] (9 species)
  Cypraeidae [Gastropoda: Cypraeoidea] (13 species)
  Cyrenoididae [Bivalvia: Euheterodonta: Lucinoidea] (1 species)
  Cystiscidae [Gastropoda: Neogastropoda: Volutoidea] (114 species)
  Daphnellinae [Gastropoda: Neogastropoda: Conoidea] (101 species)
  Dendrodorididae [Gastropoda: Phyllidioidea] (10 species)
  Dendronotidae [Gastropoda: Tritonioidea] (4 species)
  Dentaliidae [Scaphopoda: Dentaliida] (29 species)
  Desmopteridae [Gastropoda: Cymbulioidea] (2 species)
  Diaphanidae [Gastropoda: Cephalaspidea: Diaphanoidea] (22 species)
  Dimyidae [Bivalvia: Dimyoidea] (5 species)
  Discodorididae [Gastropoda: Doridoidea] (37 species)
  Dolabriferinae [Gastropoda: Aplysioidea] (6 species)
  Donacidae [Bivalvia: Euheterodonta: Tellinoidea] (9 species)
  Dorididae [Gastropoda: Doridoidea] (20 species)
  Doridoxidae [Gastropoda: Doridoxoidea] (1 species)
  Dosiniinae [Bivalvia: Euheterodonta: Veneroidea] (3 species)
  Dotidae [Gastropoda: Tritonioidea] (20 species)
  Dreissenidae [Bivalvia: Euheterodonta: Dreissenoidea] (6 species)
  Drepanomeniidae [Aplacophora] (1 species)
  Drilliinae [Gastropoda: Neogastropoda: Conoidea] (77 species)
  Eatoniellidae [Gastropoda: Cingulopsoidea] (24 species)
  Elachisinidae [Gastropoda: Rissooidea] (4 species)
  Ellobiidae [Gastropoda: Ellobioidea] (21 species)
  Enoploteuthidae [Cephalopoda: Oegopsida] (12 species)
  Entalinidae [Scaphopoda: Gadilida] (6 species)
  Epitoniidae [Gastropoda: Epitonioidea] (98 species)
  Eratoinae [Gastropoda: Velutinoidea] (3 species)
  Ergalataxinae [Gastropoda: Neogastropoda: Muricoidea] (9 species)
  Erodonidae [Bivalvia: Euheterodonta: Myoidea] (1 species)
  Eubranchidae [Gastropoda: Aeolidioidea] (11 species)
  Eulimidae [Gastropoda: Eulimoidea] (147 species)
  Facelinidae [Gastropoda: Aeolidioidea] (23 species)
  Fasciolariidae [Gastropoda: Neogastropoda: Buccinoidea] (1 species)
  Fasciolariinae [Gastropoda: Neogastropoda: Buccinoidea] (9 species)
  Ferreiraellidae [Polyplacophora: Neoloricata] (2 species)
  Ferussaciidae [Gastropoda: Achatinoidea] (1 species)
  Ficidae [Gastropoda: Tonnoidea] (6 species)
  Fionidae [Gastropoda: Aeolidioidea] (1 species)
  Fissurellidae [Gastropoda: Fissurelloidea] (98 species)
  Flabellinidae [Gastropoda: Aeolidioidea] (16 species)
  Fossarinae [Gastropoda: Cerithioidea] (8 species)
  Fusininae [Gastropoda: Neogastropoda: Buccinoidea] (40 species)
  Fustiariidae [Scaphopoda: Dentaliida] (1 species)
  Gabrieloninae [Gastropoda: Phasianelloidea] (1 species)
  Gadilidae [] (56 species)
  Gadilinidae [Scaphopoda: Dentaliida] (2 species)
  Galeommatidae [Bivalvia: Euheterodonta: Galeommatoidea] (16 species)
  Gastrochaenidae [Bivalvia: Euheterodonta: Gastrochaenoidea] (6 species)
  Gastropteridae [Gastropoda: Cephalaspidea: Philinoidea] (3 species)
  Gemminae [Bivalvia: Euheterodonta: Veneroidea] (2 species)
  Glaucidae [Gastropoda: Aeolidioidea] (1 species)
  Glycymerididae [Bivalvia: Glycymeridoidea] (12 species)
  Gonatidae [Cephalopoda: Oegopsida] (2 species)
  Goniodorididae [Gastropoda: Onchidoridoidea] (16 species)
  Gryphaeidae [Bivalvia: Ostreoidea] (3 species)
  Haliotidae [Gastropoda: Haliotoidea] (3 species)
  Halistylinae [Gastropoda: Trochoidea] (1 species)
  Haloceratidae [Gastropoda: Vanikoroidea] (3 species)
  Haminoeidae [Gastropoda: Cephalaspidea: Haminoeoidea] (13 species)
  Hancockiidae [Gastropoda: Tritonioidea] (2 species)
  Hanleyidae [Polyplacophora: Neoloricata] (4 species)
  Harpidae [Gastropoda: Neogastropoda: Volutoidea] (8 species)
  Hermaeidae [Gastropoda: Limapontoidea] (5 species)
  Hexabranchidae [Gastropoda: Onchidoridoidea] (1 species)
  Hiatellidae [Bivalvia: Euheterodonta: Hiatelloidea] (14 species)
  Hipponicidae [Gastropoda: Vanikoroidea] (14 species)
  Histioteuthidae [Cephalopoda: Oegopsida] (7 species)
  Hydrobiidae [Gastropoda: Rissooidea] (29 species)
  Hydromylidae [Gastropoda: Hydromyloidea] (1 species)
  Iravadiidae [Gastropoda: Rissooidea] (1 species)
  Ischnochitonidae [Polyplacophora: Neoloricata] (29 species)
  Isognomonidae [Bivalvia: Pterioidea] (4 species)
  Janthinidae [Gastropoda: Epitonioidea] (11 species)
  Joubiniteuthidae [Cephalopoda: Oegopsida] (1 species)
  Juliidae [Gastropoda: Oxynooidea] (1 species)
  Kelliellidae [Bivalvia: Euheterodonta: Glossoidea] (4 species)
  Laevidentaliidae [Scaphopoda: Dentaliida] (1 species)
  Lamellariinae [Gastropoda: Velutinoidea] (12 species)
  Lametilidae [Bivalvia: Nuculanoidea] (2 species)
  Lasaeidae [Bivalvia: Euheterodonta: Galeommatoidea] (28 species)
  Laternulidae [Bivalvia: Euheterodonta: Thracioidea] (1 species)
  Lepetellidae [Gastropoda: Lepetelloidea] (3 species)
  Lepetidae [Gastropoda: Lottioidea] (12 species)
  Lepetodrilidae [Gastropoda: Lepetodriloidea] (1 species)
  Lepidopleuridae [Polyplacophora: Neoloricata] (8 species)
  Lepidoteuthidae [Cephalopoda: Oegopsida] (3 species)
  Leptonidae [Bivalvia: Euheterodonta: Galeommatoidea] (22 species)
  Limacinidae [Gastropoda: Cavolinioidea] (9 species)
  Limapontiidae [Gastropoda: Limapontoidea] (14 species)
  Limidae [Bivalvia: Limoidea] (39 species)
  Limopsidae [Bivalvia: Limopsoidea] (23 species)
  Liotiidae [Gastropoda: Trochoidea] (33 species)
  Lithophaginae [Bivalvia: Mytiloidea] (5 species)
  Litiopidae [Gastropoda: Cerithioidea] (2 species)
  Littorinidae [Gastropoda: Littorinoidea] (48 species)
  Loliginidae [Cephalopoda: Myopsida] (10 species)
  Lomanotidae [Gastropoda: Tritonioidea] (2 species)
  Lottiidae [Gastropoda: Lottioidea] (26 species)
  Lucinidae [Bivalvia: Euheterodonta: Lucinoidea] (47 species)
  Lycoteuthidae [Cephalopoda: Oegopsida] (4 species)
  Lyonsiidae [Bivalvia: Euheterodonta: Pandoroidea] (16 species)
  Macominae [Bivalvia: Euheterodonta: Tellinoidea] (33 species)
  Mactridae [Bivalvia: Euheterodonta: Mactroidea] (29 species)
  Malleidae [Bivalvia: Pterioidea] (1 species)
  Malletiidae [Bivalvia: Nuculanoidea] (14 species)
  Mangeliinae [Gastropoda: Neogastropoda: Conoidea] (116 species)
  Manzanellidae [Bivalvia: Manzanelloidea] (3 species)
  Margaritinae [Gastropoda: Trochoidea] (35 species)
  Marginellidae [Gastropoda: Neogastropoda: Volutoidea] (194 species)
  Mastigoteuthidae [Cephalopoda: Oegopsida] (4 species)
  Mathildidae [Gastropoda: Architectonicoidea] (24 species)
  Meiomeniidae [Aplacophora] (3 species)
  Melongenidae [Gastropoda: Neogastropoda: Buccinoidea] (18 species)
  Meretricinae [Bivalvia: Euheterodonta: Veneroidea] (16 species)
  Mesodesmatidae [Bivalvia: Euheterodonta: Mactroidea] (3 species)
  Microhedylidae [Gastropoda: Hedylopsoidea] (5 species)
  Micropilinidae [Monoplacophora: Tryblidiida] (2 species)
  Mitridae [Gastropoda: Neogastropoda: Volutoidea] (16 species)
  Modiolinae [Bivalvia: Mytiloidea] (28 species)
  Modulidae [Gastropoda: Cerithioidea] (10 species)
  Moelleriinae [Gastropoda: Trochoidea] (1 species)
  Mopaliidae [Polyplacophora: Neoloricata] (4 species)
  Murchisonellidae [Gastropoda: Pyramidelloidea] (5 species)
  Muricinae [Gastropoda: Neogastropoda: Muricoidea] (108 species)
  Muricopsinae [Gastropoda: Neogastropoda: Muricoidea] (47 species)
  Myidae [Bivalvia: Euheterodonta: Myoidea] (11 species)
  Mytilinae [Bivalvia: Mytiloidea] (20 species)
  Nacellidae [Gastropoda: Nacelloidea] (8 species)
  Nassariidae [Gastropoda: Neogastropoda: Buccinoidea] (31 species)
  Naticidae [Gastropoda: Naticoidea] (76 species)
  Neilonellidae [Bivalvia: Nuculanoidea] (9 species)
  Neolepetopsidae [Gastropoda: Neolepetopsoidea] (2 species)
  Neoleptonidae [Bivalvia: Euheterodonta: Cyamioidea] (15 species)
  Neomeniidae [Aplacophora] (5 species)
  Neopilinidae [Monoplacophora: Tryblidiida] (6 species)
  Neoteuthidae [Cephalopoda: Oegopsida] (1 species)
  Neritidae [Gastropoda: Neritoidea] (25 species)
  Neritiliidae [Gastropoda: Neritoidea] (2 species)
  Neritopsidae [Gastropoda: Neritoidea] (1 species)
  Noetiidae [Bivalvia: Arcoidea] (4 species)
  Notaeolidiidae [Gastropoda: Aeolidioidea] (3 species)
  Notarchinae [Gastropoda: Aplysioidea] (4 species)
  Notobranchaeidae [Gastropoda: Clionoidea] (5 species)
  Nuculanidae [Bivalvia: Nuculanoidea] (50 species)
  Nuculidae [Bivalvia: Opponobranchia: Nuculoidea] (35 species)
  Ocenebrinae [Gastropoda: Neogastropoda: Muricoidea] (17 species)
  Octopodidae [Cephalopoda: Octopoda] (44 species)
  Octopoteuthidae [Cephalopoda: Oegopsida] (3 species)
  Ocythoidae [Cephalopoda: Octopoda] (1 species)
  Odostomiinae [Gastropoda: Pyramidelloidea] (95 species)
  Oenopotinae [Gastropoda: Neogastropoda: Conoidea] (54 species)
  Olivellinae [Gastropoda: Neogastropoda: Volutoidea] (62 species)
  Olivinae [Gastropoda: Neogastropoda: Volutoidea] (28 species)
  Omalogyridae [Gastropoda: Architectonicoidea] (13 species)
  Ommastrephidae [Cephalopoda: Oegopsida] (10 species)
  Onchidiidae [Gastropoda: Onchidioidea] (7 species)
  Onchidoridae [Gastropoda: Onchidoridoidea] (14 species)
  Onychoteuthidae [Cephalopoda: Oegopsida] (5 species)
  Oocorythinae [Gastropoda: Tonnoidea] (6 species)
  Opisthoteuthidae [Cephalopoda: Octopoda] (1 species)
  Orbitestellidae [Gastropoda: Orbitestelloidea] (6 species)
  Ostreidae [Bivalvia: Ostreoidea] (16 species)
  Otinidae [Gastropoda: Otinoidea] (1 species)
  Ovulidae [Gastropoda: Cypraeoidea] (29 species)
  Oxynoidae [Gastropoda: Oxynooidea] (4 species)
  Pandoridae [Bivalvia: Euheterodonta: Pandoroidea] (9 species)
  Patellidae [Gastropoda: Patelloidea] (3 species)
  Pectinidae [Bivalvia: Pectinoidea] (53 species)
  Peltospiridae [Gastropoda: Neomphaloidea] (2 species)
  Pelycidiidae [Gastropoda: Rissooidea] (1 species)
  Pendromidae [Gastropoda: Trochoidea] (4 species)
  Peraclidae [Gastropoda: Cymbulioidea] (8 species)
  Periplomatidae [Bivalvia: Euheterodonta: Thracioidea] (14 species)
  Peristerniinae [Gastropoda: Neogastropoda: Buccinoidea] (43 species)
  Perrierinidae [Bivalvia: Euheterodonta: Cyamioidea] (2 species)
  Personidae [Gastropoda: Tonnoidea] (4 species)
  Petricolidae [Bivalvia: Euheterodonta: Veneroidea] (9 species)
  Phaliinae [Gastropoda: Tonnoidea] (8 species)
  Pharidae [Bivalvia: Euheterodonta: Solenoidea] (7 species)
  Phenacolepadidae [Gastropoda: Neritoidea] (3 species)
  Philinidae [Gastropoda: Cephalaspidea: Philinoidea] (27 species)
  Philobryidae [Bivalvia: Philobryoidea] (21 species)
  Pholadidae [Bivalvia: Euheterodonta: Pholadoidea] (23 species)
  Pholadomyidae [Bivalvia: Euheterodonta: Pholadomyoidea] (2 species)
  Phyllidiidae [Gastropoda: Phyllidioidea] (2 species)
  Phylliroidae [Gastropoda: Tritonioidea] (3 species)
  Phyllomeniidae [Aplacophora] (1 species)
  Pickworthiidae [Gastropoda: Littorinoidea] (11 species)
  Pinnidae [Bivalvia: Pinnoidea] (5 species)
  Piseinotecidae [Gastropoda: Aeolidioidea] (1 species)
  Pitarinae [Bivalvia: Euheterodonta: Veneroidea] (21 species)
  Placobranchidae [Gastropoda: Placobranchoidea] (25 species)
  Placunidae [Bivalvia: Anomioidea] (1 species)
  Planaxinae [Gastropoda: Cerithioidea] (4 species)
  Pleioptygmatidae [Gastropoda: Neogastropoda: Volutoidea] (1 species)
  Pleurobranchidae [Gastropoda: Pleurobranchoidea] (26 species)
  Pleurotomariidae [Gastropoda: Pleurotomarioidea] (12 species)
  Plicatulidae [Bivalvia: Plicatuloidea] (2 species)
  Plusculidae [Gastropoda: Cephalaspidea: Philinoidea] (1 species)
  Pneumodermatidae [Gastropoda: Clionoidea] (11 species)
  Polyceridae [Gastropoda: Onchidoridoidea] (26 species)
  Poromyidae [Bivalvia: Euheterodonta: Poromyoidea] (13 species)
  Potamididae [Gastropoda: Cerithioidea] (4 species)
  Prisogasterinae [Gastropoda: Trochoidea] (1 species)
  Pristiglomidae [] (1 species)
  Pristoglomidae [Bivalvia: Pristoglomoidea] (3 species)
  Prochaetodermatida [] (13 species)
  Proctonotidae [Gastropoda: Arminoidea] (2 species)
  Promachoteuthidae [Cephalopoda: Oegopsida] (1 species)
  Proneomeniidae [Aplacophora] (7 species)
  Propeamussiidae [Bivalvia: Pectinoidea] (26 species)
  Provannidae [Gastropoda: Uncertain] (2 species)
  Psammobiidae [Bivalvia: Euheterodonta: Tellinoidea] (6 species)
  Pseudococculinidae [Gastropoda: Lepetelloidea] (12 species)
  Pseudolividae [Gastropoda: Neogastropoda: Volutoidea] (2 species)
  Pseudovermidae [Gastropoda: Aeolidioidea] (1 species)
  Psychroteuthidae [Cephalopoda: Oegopsida] (1 species)
  Pteriidae [Bivalvia: Pterioidea] (7 species)
  Pterotracheidae [Gastropoda: Pterotracheoidea] (5 species)
  Pulsellidae [Scaphopoda: Gadilida] (7 species)
  Pyramidellidae [Gastropoda: Pyramidelloidea] (1 species)
  Pyramidellinae [Gastropoda: Pyramidelloidea] (22 species)
  Ranellidae [Gastropoda: Tonnoidea] (42 species)
  Rapaninae [Gastropoda: Neogastropoda: Muricoidea] (17 species)
  Retusidae [Gastropoda: Cephalaspidea: Philinoidea] (20 species)
  Rhizoridae [Gastropoda: Cephalaspidea: Philinoidea] (4 species)
  Rhodopidae [Gastropoda: Unassigned] (2 species)
  Rhopalomeniidae [Aplacophora] (5 species)
  Ringiculidae [Gastropoda: Architectibranchia: Ringiculoidea] (2 species)
  Rissoellidae [Gastropoda: Rissoelloidea] (12 species)
  Rissoinae [Gastropoda: Rissooidea] (132 species)
  Rissoininae [Gastropoda: Rissooidea] (55 species)
  Runcinidae [Gastropoda: Runcinacea: Runcinoidea] (5 species)
  Scaliolidae [Gastropoda: Cerithioidea] (4 species)
  Scaphandridae [Gastropoda: Cephalaspidea: Philinoidea] (9 species)
  Scissurellidae [Gastropoda: Scissurelloidea] (18 species)
  Scyllaeidae [Gastropoda: Tritonioidea] (1 species)
  Seguenziidae [Gastropoda: Seguenzioidea] (22 species)
  Semelidae [Bivalvia: Euheterodonta: Tellinoidea] (23 species)
  Sepiolidae [Cephalopoda: Sepioida] (10 species)
  Siliculidae [Bivalvia: Nuculanoidea] (5 species)
  Siliquariidae [Gastropoda: Cerithioidea] (5 species)
  Simrothiellidae [Aplacophora] (1 species)
  Siphonariidae [Gastropoda: Siphonarioidea] (10 species)
  Skeneinae [Gastropoda: Trochoidea] (68 species)
  Skeneopsidae [Gastropoda: Littorinoidea] (2 species)
  Solariellidae [Gastropoda: Trochoidea] (29 species)
  Solecurtidae [Bivalvia: Euheterodonta: Tellinoidea] (4 species)
  Solemyidae [Bivalvia: Opponobranchia: Solemyoidea] (6 species)
  Solenidae [Bivalvia: Euheterodonta: Solenoidea] (6 species)
  Sphaeriidae [Bivalvia: Euheterodonta: Sphaerioidea] (1 species)
  Spirulidae [Cephalopoda: Spirulida] (1 species)
  Spondylidae [Bivalvia: Pectinoidea] (7 species)
  Sportellidae [Bivalvia: Euheterodonta: Cyamioidea] (8 species)
  Stomatellinae [Gastropoda: Trochoidea] (4 species)
  Strictispirinae [Gastropoda: Neogastropoda: Conoidea] (6 species)
  Strombidae [Gastropoda: Stromboidea] (9 species)
  Struthiolariidae [Gastropoda: Stromboidea] (1 species)
  Sutulizonidae [Gastropoda: Lepetodriloidea] (1 species)
  Syncyclonemidae [Bivalvia: Pectinoidea] (1 species)
  Syrnolinae [Gastropoda: Pyramidelloidea] (8 species)
  Tantulidae [Gastropoda: Acochlidiodea] (1 species)
  Tapetinae [Bivalvia: Euheterodonta: Veneroidea] (3 species)
  Taraninae [Gastropoda: Neogastropoda: Conoidea] (4 species)
  Tegulinae [Gastropoda: Trochoidea] (11 species)
  Tellininae [Bivalvia: Euheterodonta: Tellinoidea] (54 species)
  Terebridae [Gastropoda: Neogastropoda: Conoidea] (47 species)
  Teredinidae [Bivalvia: Euheterodonta: Pholadoidea] (31 species)
  Tergipedidae [Gastropoda: Aeolidioidea] (25 species)
  Tethyidae [Gastropoda: Tritonioidea] (2 species)
  Thliptodontidae [Gastropoda: Clionoidea] (2 species)
  Thraciidae [Bivalvia: Euheterodonta: Thracioidea] (16 species)
  Thyasiridae [Bivalvia: Euheterodonta: Lucinoidea] (38 species)
  Thysanoteuthidae [Cephalopoda: Oegopsida] (1 species)
  Tindariidae [Bivalvia: Nuculanoidea] (10 species)
  Tjaernoeidae [Gastropoda: Orbitestelloidea] (2 species)
  Tonicellidae [Polyplacophora: Neoloricata] (5 species)
  Tonnidae [Gastropoda: Tonnoidea] (5 species)
  Tornidae [Gastropoda: Rissooidea] (99 species)
  Trapezidae [Bivalvia: Euheterodonta: Arcticoidea] (2 species)
  Tremoctopodidae [Cephalopoda: Octopoda] (2 species)
  Tricoliinae [Gastropoda: Phasianelloidea] (8 species)
  Trimusculidae [Gastropoda: Trimusculoidea] (2 species)
  Triphoridae [Gastropoda: Triphoroidea] (107 species)
  Tritoniidae [Gastropoda: Tritonioidea] (17 species)
  Triviinae [Gastropoda: Velutinoidea] (19 species)
  Trochinae [Gastropoda: Trochoidea] (16 species)
  Trophoninae [Gastropoda: Neogastropoda: Muricoidea] (58 species)
  Truncatellidae [Gastropoda: Rissooidea] (7 species)
  Turbinellidae [Gastropoda: Neogastropoda: Volutoidea] (29 species)
  Turbininae [Gastropoda: Trochoidea] (18 species)
  Turbonillinae [Gastropoda: Pyramidelloidea] (162 species)
  Turridae [Gastropoda: Neogastropoda: Conoidea] (8 species)
  Turrinae [Gastropoda: Neogastropoda: Conoidea] (16 species)
  Turritellidae [Gastropoda: Cerithioidea] (22 species)
  Turtoniidae [Bivalvia: Euheterodonta: Veneroidea] (1 species)
  Tylodinidae [Gastropoda: Umbraculoidea] (2 species)
  Typhinae [Gastropoda: Neogastropoda: Muricoidea] (13 species)
  Umbraculidae [Gastropoda: Umbraculoidea] (2 species)
  Ungulinidae [Bivalvia: Euheterodonta: Lucinoidea] (16 species)
  Vampyroteuthidae [Cephalopoda: Vampyromorpha] (1 species)
  Vanikoridae [Gastropoda: Vanikoroidea] (31 species)
  Velutininae [Gastropoda: Velutinoidea] (20 species)
  Veneridae [Bivalvia: Euheterodonta: Veneroidea] (3 species)
  Venerinae [Bivalvia: Euheterodonta: Veneroidea] (8 species)
  Vermetidae [Gastropoda: Cerithioidea] (17 species)
  Veronicellidae [Gastropoda: Veronicelloidea] (1 species)
  Verticordiidae [Bivalvia: Euheterodonta: Verticordioidea] (23 species)
  Vesicomyidae [Bivalvia: Euheterodonta: Glossoidea] (11 species)
  Vitreledonellidae [Cephalopoda: Octopoda] (1 species)
  Volutidae [Gastropoda: Neogastropoda: Volutoidea] (59 species)
  Volutomitridae [Gastropoda: Neogastropoda: Volutoidea] (17 species)
  Volvatellidae [Gastropoda: Oxynooidea] (2 species)
  Xenophoridae [Gastropoda: Xenophoroidea] (3 species)
  Xylodisculidae [Gastropoda: Orbitestelloidea] (1 species)
  Yoldiidae [Bivalvia: Nuculanoidea] (57 species)
  Zerotulidae [Gastropoda: Littorinoidea] (5 species)
  Zonulispirinae [Gastropoda: Neogastropoda: Conoidea] (21 species)

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