Abra fragilis – synonym of Abra prismatica
Abra milaschevichi – synonym of Abra prismatica
Acanthochaetes vulgaris – synonym of Acanthochitona crinita
Acanthochites adansoni – synonym of Acanthochitona crinita
Acanthochites bouvieri – synonym of Acanthochitona crinita
Acanthochites carinatus – synonym of Acanthochitona fascicularis
Acanthochites communis – synonym of Acanthochitona fascicularis
Acanthochites discrepans var. albina – synonym of Acanthochitona fascicularis
Acanthochites discrepans var. minorflava – synonym of Acanthochitona fascicularis
Acanthochites discrepans var. violaceolimbata – synonym of Acanthochitona fascicularis
Acanthochites fascicularis var. cinnabrina – synonym of Acanthochitona crinita
Acanthochites fascicularis var. fusca – synonym of Acanthochitona crinita
Acanthochites fascicularis var. lutescens – synonym of Acanthochitona crinita
Acanthochites hamatus – synonym of Acanthochitona fascicularis
Acanthochiton communis var. barashi – synonym of Acanthochitona fascicularis
Acanthochiton discrepans var. angustivalva – synonym of Acanthochitona fascicularis
Acanthochiton heterochaetus – synonym of Acanthochitona fascicularis
Acanthochiton oblongus – synonym of Acanthochitona crinita
Acanthochitona bonairensis – synonym of Acanthochitona fascicularis
Acanthochitona communis – synonym of Acanthochitona fascicularis
Acanthochitona crinitus – synonym of Acanthochitona crinita
Acanthochitona gracilis – synonym of Acanthochitona fascicularis
Acanthodoris citrina – synonym of Acanthodoris pilosa
Acanthodoris ornata – synonym of Acanthodoris pilosa
Acanthodoris pilosa var. albescens – synonym of Acanthodoris pilosa
Acanthodoris pilosa var. pallida – synonym of Acanthodoris pilosa
Acanthodoris pilosa var. purpurea – synonym of Acanthodoris pilosa
Acanthodoris pilosa var. zealandiae – synonym of Acanthodoris pilosa
Acera bullata var. nana – synonym of Akera bullata
Acera elegans – synonym of Akera bullata
Acicularia lubrica – synonym of Melanella lubrica
Acicularia monterosatoi – synonym of Melanella monterosatoi
Aclis farolita – synonym of Graphis albida
Aclis nitidissima – synonym of Ebala nitidissima
Aclis supranitida – synonym of Aclis minor
Aclis unica – synonym of Graphis albida
Acmaea fergusoni – synonym of Tectura testudinalis
Acmaea testudinalis – synonym of Tectura testudinalis
Actaeon elegans – synonym of Elysia viridis
Acteon augustoi – synonym of Acteon tornatilis
Acteon bullaeformis – synonym of Acteon tornatilis
Acteon semistriatus – synonym of Acteon tornatilis
Acteon subulatus – synonym of Acteon tornatilis
Acteonia corrugata – synonym of Limapontia senestra
Acteonia corrugata: – synonym of Limapontia senestra
Acteonia senestra – synonym of Limapontia senestra
Adasius loscombeus – synonym of Solecurtus scopula
Adipicola pelagica – synonym of Idas simpsoni
Adipicola simpsoni – synonym of Idas simpsoni
Adula simpsoni – synonym of Idas simpsoni
Aegires hispidus – synonym of Aegires punctilucens
Aegires leuckarti – synonym of Aegires punctilucens
Aegirus hispidus – synonym of Aegires punctilucens
Aeolidia bellardii – synonym of Tenellia adspersa
Aeolidia casaretii – synonym of Tenellia adspersa
Aeolidia defilippii – synonym of Tenellia adspersa
Aeolidia demartinii – synonym of Tenellia adspersa
Aeolidia durazzii – synonym of Tenellia adspersa
Aeolidia gandolfii – synonym of Tenellia adspersa
Aeolidia grubbi – synonym of Tenellia adspersa
Aeolidia herculea – synonym of Aeolidia papillosa
Aeolidia papillosa var. pacifica – synonym of Aeolidia papillosa
Aeolidia rusconii – synonym of Favorinus branchialis
Aeolidia serotina – synonym of Aeolidia papillosa
Aeolidia souleyeto – synonym of Tenellia adspersa
Aeolidia tergipedina – synonym of Tenellia adspersa
Aeolidia whately – synonym of Tenellia adspersa
Aeolis adelaidae – synonym of Eubranchus farrani
Aeolis bellula – synonym of Cuthona gymnota
Aeolis bostoniensis approximans – synonym of Coryphella verrucosa
Aeolis gigas – synonym of Facelina bostoniensis
Aeolis lesliana – synonym of Aeolidia papillosa
Aeolis lineata – synonym of Coryphella lineata
Aeolis murrayana – synonym of Aeolidia papillosa
Aeolis neglecta – synonym of Tergipes tergipes
Aequipecten bruei coeni – synonym of Aequipecten opercularis
Aequipecten bruei pulchricostatus – synonym of Aequipecten opercularis
Akera flexilis – synonym of Akera bullata
Alexia algerica – synonym of Ovatella myosotis
Alexia armoricana – synonym of Ovatella myosotis
Alexia cossoni – synonym of Ovatella myosotis
Alexia enhalia – synonym of Ovatella myosotis
Alexia kobelti – synonym of Auriculinella erosa
Alexia letourneuxi – synonym of Ovatella myosotis
Alexia loweana – synonym of Ovatella myosotis
Alexia myosotis var. varicosa – synonym of Ovatella myosotis
Alexia obsoleta – synonym of Ovatella myosotis
Alexia oranica – synonym of Ovatella myosotis
Alexia paivana – synonym of Auriculinella erosa
Alexia parva – synonym of Ovatella myosotis
Alexia payraudeaui – synonym of Ovatella myosotis
Alexia pechaudi – synonym of Ovatella myosotis
Alexia ringicula – synonym of Ovatella myosotis
Allorossia glaucopsis – synonym of Rossia palpebrosa
Alloteuthis medius – synonym of Alloteuthis media
Alloteuthis subulatus – synonym of Alloteuthis subulata
Altenaeum dawsoni – synonym of Mysella dawsoni
Altenaeum nortoni – synonym of Mysella dawsoni
Alvania calathina – synonym of Alvania beani
Alvania calathus – synonym of Alvania beani
Alvania cimiciformis – synonym of Alvania cimicoides
Alvania crassa – synonym of Manzonia crassa
Alvania puncturata – synonym of Alvania punctura
Alvania reticulata – synonym of Alvania beani
Alvania supranitida – synonym of Aclis minor
Alvania testae var. abyssicola – synonym of Alvania abyssicola
Amalthea maxima – synonym of Capulus ungaricus
Ammonicerina paucicostata – synonym of Ammonicera rota
Ammonicerina pulchella – synonym of Ammonicera rota
Ammonicerina rota – synonym of Ammonicera rota
Amnicola confusa – synonym of Mercuria confusa
Amphidesma boisyianum – synonym of Abra alba
Amphidesma corbuloides – synonym of Lyonsia norwegica
Amphidesma intermedium – synonym of Abra nitida
Amphidesma lucinale – synonym of Loripes lacteus
Amphidesma phaseolinum – synonym of Thracia papyracea
Amphidesma semidentatum – synonym of Abra alba
Amphisphya hyalina – synonym of Diaphana minuta
Amphispyra globosa – synonym of Diaphana minuta
Amphitrite frondosa – synonym of Dendronotus frondosus
Amphorina alberti – synonym of Eubranchus farrani
Amphorina aurantiaca – synonym of Cuthona gymnota
Amphorina caerulea – synonym of Cuthona caerulea
Amphorina olivacea – synonym of Cuthona foliata
Amphorina viridis – synonym of Cuthona viridis
Anatina bonfornellensis – synonym of Thracia distorta
Anatina elongata – synonym of Lyonsia norwegica
Anatina longirostris – synonym of Cuspidaria rostrata
Anatina oblonga – synonym of Cochlodesma praetenue
Anatina ovalis – synonym of Thracia distorta
Anatina radiata – synonym of Cardiomya costellata
Anatina rupicola – synonym of Thracia distorta
Anatina truncata – synonym of Lyonsia norwegica
Anatina truncata – synonym of Thracia distorta
Anatina truncata – synonym of Thracia papyracea
Anatina villosiuscula – synonym of Thracia villosiuscula
Anchomasa pennantiana – synonym of Barnea parva
Ancula cristata – synonym of Ancula gibbosa
Ancula pacifica – synonym of Ancula gibbosa
Ancula sulphurea – synonym of Ancula gibbosa
Angulus donacina – synonym of Tellina donacina
Angulus fabula – synonym of Tellina fabula
Angulus pygmaea – synonym of Tellina pygmaea
Angulus tenuis – synonym of Tellina tenuis
Anisochiton discrepans var. elongata – synonym of Acanthochitona fascicularis
Anisochiton discrepans var. marmorata – synonym of Acanthochitona fascicularis
Anisochiton discrepans var. nigrolineata – synonym of Acanthochitona fascicularis
Anisochiton discrepans var. viridis – synonym of Acanthochitona fascicularis
Anisochiton fascicularis var. violacea – synonym of Acanthochitona crinita
Anisocycla nitidissima – synonym of Ebala nitidissima
Anomia aculeata – synonym of Heteranomia squamula
Anomia adhaerens – synonym of Anomia ephippium
Anomia aspera – synonym of Anomia ephippium
Anomia boletiformis – synonym of Anomia ephippium
Anomia cepa – synonym of Anomia ephippium
Anomia cepiformis – synonym of Anomia ephippium
Anomia cucullata – synonym of Heteranomia squamula
Anomia cylindrica – synonym of Heteranomia squamula
Anomia cymbiformis – synonym of Heteranomia squamula
Anomia elegans – synonym of Pododesmus patelliformis
Anomia ephippia – synonym of Anomia ephippium
Anomia ephippia rugulosostriata – synonym of Anomia ephippium
Anomia ephippia var. argentina – synonym of Anomia ephippium
Anomia ephippia var. convexa – synonym of Anomia ephippium
Anomia ephippia var. cuprea – synonym of Anomia ephippium
Anomia ephippia var. sanguinea – synonym of Anomia ephippium
Anomia ephippia var. saxicola – synonym of Anomia ephippium
Anomia flexuosa – synonym of Heteranomia squamula
Anomia fornicata – synonym of Anomia ephippium
Anomia helvetica – synonym of Anomia ephippium
Anomia lens – synonym of Heteranomia squamula
Anomia margaritacea – synonym of Pododesmus patelliformis
Anomia membranacea – synonym of Heteranomia squamula
Anomia patellaris – synonym of Anomia ephippium
Anomia patelliformis – synonym of Pododesmus patelliformis
Anomia pectiniformis – synonym of Pododesmus patelliformis
Anomia plana – synonym of Pododesmus patelliformis
Anomia polymorpha – synonym of Anomia ephippium
Anomia polymorpha – synonym of Heteranomia squamula
Anomia polymorpha – synonym of Pododesmus patelliformis
Anomia pyriformis – synonym of Anomia ephippium
Anomia radians – synonym of Anomia ephippium
Anomia radiata – synonym of Anomia ephippium
Anomia rugosa – synonym of Heteranomia squamula
Anomia scabrella – synonym of Anomia ephippium
Anomia simplex – synonym of Anomia ephippium
Anomia spinosa – synonym of Heteranomia squamula
Anomia squamula – synonym of Heteranomia squamula
Anomia sulcata – synonym of Anomia ephippium
Anomia transversa – synonym of Pododesmus patelliformis
Anomia tubularis – synonym of Heteranomia squamula
Anomia undulata – synonym of Pododesmus patelliformis
Anomia violacea – synonym of Anomia ephippium
Antalis entalis – synonym of Dentalium entalis
Antalis vulgare – synonym of Dentalium vulgare
Antalis vulgaris – synonym of Dentalium vulgare
Antiopa cristata – synonym of Janolus cristatus
Antiopa hyalina – synonym of Janolus hyalinus
Antiopa splendida – synonym of Janolus cristatus
Antiopella cristata – synonym of Janolus cristatus
Antiopella hyalina – synonym of Janolus hyalinus
Aplysia albo-punctata – synonym of Aplysia punctata
Aplysia cuvieri delle – synonym of Aplysia punctata
Aplysia dumortieri – synonym of Aplysia punctata
Aplysia ferussaci – synonym of Aplysia punctata
Aplysia griffithsiana – synonym of Aplysia punctata
Aplysia guttata – synonym of Aplysia punctata
Aplysia hybrida – synonym of Aplysia punctata
Aplysia longicornis – synonym of Aplysia punctata
Aplysia marginata – synonym of Aplysia punctata
Aplysia mustelina – synonym of Aplysia punctata
Aplysia nexa – synonym of Aplysia punctata
Aplysia rosea – synonym of Aplysia punctata
Aplysia stellata – synonym of Aplysia punctata
Aplysia varians – synonym of Aplysia punctata
Aplysia virescens – synonym of Aplysia punctata
Aplysiopterus neapolitanus delle – synonym of Elysia viridis
Aporrhais aldrovandi – synonym of Aporrhais pespelecani
Aporrhais bilobatus – synonym of Aporrhais pespelecani
Aporrhais conemenosi – synonym of Aporrhais pespelecani
Aporrhais macandreae – synonym of Aporrhais serresianus
Aporrhais michaudi – synonym of Aporrhais pespelecani
Aporrhais pelecanipes – synonym of Aporrhais pespelecani
Aporrhais pelecanopus – synonym of Aporrhais pespelecani
Aporrhais pescarbonis – synonym of Aporrhais serresianus
Aporrhais pespelecani oblongus – synonym of Aporrhais pespelecani
Aporrhais pespelecani robustissimus – synonym of Aporrhais pespelecani
Aporrhais pespelecani var. aculea – synonym of Aporrhais pespelecani
Aporrhais pespelecani var. albida – synonym of Aporrhais pespelecani
Aporrhais pespelecani var. bifida – synonym of Aporrhais pespelecani
Aporrhais pespelecani var. bilobata – synonym of Aporrhais pespelecani
Aporrhais pespelecani var. incrassata – synonym of Aporrhais pespelecani
Aporrhais pespelecani var. oceanica – synonym of Aporrhais pespelecani
Aporrhais pespelecani var. panormitana – synonym of Aporrhais pespelecani
Aporrhais pespelecani var. robusta – synonym of Aporrhais pespelecani
Aporrhais pespelecani var. rufa – synonym of Aporrhais pespelecani
Aporrhais pespelecani var. venetiana – synonym of Aporrhais pespelecani
Aporrhais pespelecani var. viator – synonym of Aporrhais pespelecani
Aporrhais pespelecani var. vinitincta – synonym of Aporrhais pespelecani
Aporrhais pespelecani var. violacea – synonym of Aporrhais pespelecani
Aporrhais quadrifidus – synonym of Aporrhais pespelecani
Aporrhais sarsii – synonym of Aporrhais serresianus
Aporrhais serreseanus hexapodus – synonym of Aporrhais serresianus
Aporrhais serresianus var. crassa – synonym of Aporrhais serresianus
Aporrhais serresianus var. minor – synonym of Aporrhais serresianus
Aporrhais serresianus var. ventricosa – synonym of Aporrhais serresianus
Arca barbata – synonym of Striarca lactea
Arca britannica – synonym of Arca tetragona
Arca cardissa – synonym of Arca tetragona
Arca crenulata – synonym of Bathyarca pectunculoides
Arca crinita – synonym of Striarca lactea
Arca flammulata – synonym of Glycymeris glycymeris
Arca fusca – synonym of Arca tetragona
Arca gaimardi – synonym of Striarca lactea
Arca glycymeris – synonym of Glycymeris glycymeris
Arca koreni – synonym of Bathyarca pectunculoides
Arca lactanea – synonym of Striarca lactea
Arca lactea – synonym of Striarca lactea
Arca margaritacea – synonym of Nucula nucleus
Arca minima – synonym of Glycymeris glycymeris
Arca minuta – synonym of Nuculana minuta
Arca modiola – synonym of Striarca lactea
Arca navicularis – synonym of Arca tetragona
Arca nodulosa – synonym of Striarca lactea
Arca nucleus – synonym of Nucula nucleus
Arca nummaria – synonym of Glycymeris glycymeris
Arca pectunculiformis – synonym of Bathyarca pectunculoides
Arca pectunculoides – synonym of Bathyarca pectunculoides
Arca pectunculoides var. grandis – synonym of Bathyarca pectunculoides
Arca pectunculoides var. septentrionalis – synonym of Bathyarca pectunculoides
Arca pennantiana – synonym of Striarca lactea
Arca perforans – synonym of Striarca lactea
Arca pilosa – synonym of Glycymeris glycymeris
Arca pulchella – synonym of Glycymeris glycymeris
Arca quoyi – synonym of Striarca lactea
Arca reticulata – synonym of Striarca lactea
Arca rosea – synonym of Striarca lactea
Arca striata – synonym of Striarca lactea
Arca tenuis – synonym of Nuculoma tenuis
Arca tortuosa – synonym of Arca tetragona
Archidoris stellifera – synonym of Geitodoris planata
Archidoris tuberculata – synonym of Archidoris pseudoargus
Arcopagia britannica purpurmaculata – synonym of Arcopagia balaustina
Arctica vulgaris – synonym of Arctica islandica
Arctoe fulva – synonym of Dosinia exoleta
Arctoe nitidissima – synonym of Dosinia lupina
Arenomya arenaria – synonym of Mya arenaria
Arthemis complanata – synonym of Dosinia exoleta
Arthemis compta – synonym of Dosinia lupina
Asbjoernsenia striata – synonym of Tellina pygmaea
Aspersina brambelli – synonym of Asperspina brambelli
Assiminea recta – synonym of Semisalsa stagnorum
Astarte banksi – synonym of Astarte sulcata
Astarte borealis var. placenta – synonym of Astarte borealis
Astarte borealis var. rhomboidalis – synonym of Astarte borealis
Astarte borealis var. sericea – synonym of Astarte borealis
Astarte cyprinoides – synonym of Astarte borealis
Astarte garensis – synonym of Astarte elliptica
Astarte intermedia – synonym of Astarte elliptica
Astarte lactea – synonym of Astarte borealis
Astarte ovalis – synonym of Astarte sulcata
Astarte pallida – synonym of Astarte sulcata
Astarte semisulcata – synonym of Astarte borealis
Astarte sulcata var. laevis – synonym of Astarte sulcata
Astarte sulcata var. minor – synonym of Astarte sulcata
Astarte sulcata var. multicostata – synonym of Astarte sulcata
Astarte sulcata var. trigona – synonym of Astarte sulcata
Astarte triangularis var. fusca – synonym of Goodallia triangularis
Astarte triangularis var. radiata – synonym of Goodallia triangularis
Astarte truncata – synonym of Astarte sulcata
Astarte vulgaris – synonym of Astarte sulcata
Astarte warhami – synonym of Astarte montagui
Atrina fragilis – synonym of Atrina pectinata
Atrina jojenia – synonym of Atrina pectinata
Auricula biasolettiana – synonym of Ovatella myosotis
Auricula bicolor – synonym of Ovatella myosotis
Auricula bivonae – synonym of Auriculinella erosa
Auricula botteriana – synonym of Ovatella myosotis
Auricula ciliata – synonym of Ovatella myosotis
Auricula dubia – synonym of Ovatella myosotis
Auricula erosa – synonym of Auriculinella erosa
Auricula exilis – synonym of Auriculinella erosa
Auricula gracilis – synonym of Ovatella myosotis
Auricula kutschigiana – synonym of Ovatella myosotis
Auricula micheli – synonym of Auriculinella erosa
Auricula microstoma – synonym of Ovatella myosotis
Auricula myosotis – synonym of Ovatella myosotis
Auricula tenella – synonym of Ovatella myosotis
Auricula veneta – synonym of Ovatella myosotis
Auricula venetiensis – synonym of Ovatella myosotis
Auricula vespertina – synonym of Ovatella myosotis
Auricula watsoni – synonym of Ovatella myosotis
Auriculina insculpta var. nobilis – synonym of Ondina divisa
Auriculina messanensis – synonym of Ondina divisa
Axinus croulinensis – synonym of Thyasira croulinensis
Axinus ferrugineus – synonym of Thyasira ferruginea
Axinus gouldi – synonym of Thyasira gouldi
Axinus pusillus – synonym of Thyasira croulinensis
Axinus sarsi – synonym of Thyasira sarsi
Azorinus chamasolen – synonym of Solecurtus chamasolen