Caecum elegans – synonym of Caecum trachea
Caecum fasciatum – synonym of Caecum trachea
Caecum orientale – synonym of Caecum clarkii
Caecum pollicare – synonym of Caecum clarkii
Caecum sardinianum – synonym of Caecum clarkii
Caecum semitracheum – synonym of Caecum clarkii
Calliopaea dendritica – synonym of Placida dendritica
Calliostoma agrigentinum – synonym of Calliostoma zizyphinum
Calliostoma alexandrinum – synonym of Calliostoma zizyphinum
Calliostoma conuloides var. intermedia – synonym of Calliostoma zizyphinum
Callochiton achatinus euboecus – synonym of Callochiton septemvalvis
Calyptraea laevigata – synonym of Calyptraea chinensis
Calyptraea polii – synonym of Calyptraea chinensis
Calyptraea polii var. fusca – synonym of Calyptraea chinensis
Calyptraea spirata – synonym of Calyptraea chinensis
Calyptraea succinea – synonym of Calyptraea chinensis
Calyptraea vulgaris – synonym of Calyptraea chinensis
Camptonectes tigerina – synonym of Palliolum tigerinum
Candellista alba – synonym of Tritonia hombergi
Candiella plebeia – synonym of Tritonia plebeia
Cantharidus clelandi – synonym of Clelandella miliaris
Cantharidus exasperatus – synonym of Jujubinus exasperatus
Cantharidus montagui – synonym of Jujubinus montagui
Cantharidus striatus – synonym of Jujubinus montagui
Cantharidus striatus – synonym of Jujubinus striatus
Canthopsis harvardiana – synonym of Alderia modesta
Capellinia capellinii – synonym of Eubranchus doriae
Capellinia doriae – synonym of Eubranchus cingulatus
Capellinia doriae – synonym of Eubranchus doriae
Capsa deflorata – synonym of Paphia aurea
Capulus hungaricus thorsoni – synonym of Capulus ungaricus
Cardium aquilinum – synonym of Parvicardium exiguum
Cardium arcuatum – synonym of Lucinella divaricata
Cardium belgicum – synonym of Cerastoderma edule
Cardium belticum – synonym of Cerastoderma lamarcki
Cardium bullatum – synonym of Acanthocardia echinata
Cardium ciliare – synonym of Acanthocardia echinata
Cardium clodiense – synonym of Cerastoderma lamarcki
Cardium corallinum – synonym of Mactra stultorum
Cardium crassum – synonym of Laevicardium crassum
Cardium crenulatum – synonym of Cerastoderma edule
Cardium duregnei – synonym of Acanthocardia echinata
Cardium echinatum – synonym of Acanthocardia echinata
Cardium edule – synonym of Cerastoderma edule
Cardium edule var. altior – synonym of Cerastoderma lamarcki
Cardium edule var. batesoni – synonym of Cerastoderma lamarcki
Cardium edule var. loppensi – synonym of Cerastoderma edule
Cardium edule var. maculata – synonym of Cerastoderma edule
Cardium edule var. major – synonym of Cerastoderma edule
Cardium edule var. mareotica – synonym of Cerastoderma edule
Cardium edule var. nuciformis – synonym of Cerastoderma edule
Cardium edule var. palludosa – synonym of Cerastoderma lamarcki
Cardium edule var. quadrata – synonym of Cerastoderma lamarcki
Cardium edule var. regularis – synonym of Cerastoderma edule
Cardium edule var. sibenicensis – synonym of Cerastoderma edule
Cardium eichwaldi – synonym of Cerastoderma lamarcki
Cardium elongatum – synonym of Parvicardium ovale
Cardium europeum – synonym of Laevicardium crassum
Cardium exiguum – synonym of Parvicardium exiguum
Cardium exiguum var. albina – synonym of Parvicardium exiguum
Cardium exiguum var. commutata – synonym of Parvicardium exiguum
Cardium exiguum var. flavida – synonym of Parvicardium exiguum
Cardium fasciatum – synonym of Acanthocardia tuberculata
Cardium fasciatum – synonym of Parvicardium ovale
Cardium flexuosum – synonym of Acanthocardia echinata
Cardium glaucum – synonym of Cerastoderma lamarcki
Cardium glaucum marsi – synonym of Cerastoderma lamarcki
Cardium glaucum var. crassa – synonym of Cerastoderma lamarcki
Cardium glaucum var. rectidens – synonym of Cerastoderma lamarcki
Cardium glaucum var. syrtica – synonym of Cerastoderma lamarcki
Cardium helleri – synonym of Parvicardium exiguum
Cardium isthmicum – synonym of Cerastoderma lamarcki
Cardium laevigatum – synonym of Laevicardium crassum
Cardium lamarcki – synonym of Cerastoderma lamarcki
Cardium mercatorium – synonym of Cerastoderma edule
Cardium minimum – synonym of Parvicardium minimum
Cardium minimum var. suecica – synonym of Parvicardium minimum
Cardium mucronatum – synonym of Acanthocardia echinata
Cardium nodosum – synonym of Parvicardium scabrum
Cardium norvegicum – synonym of Laevicardium crassum
Cardium norvegicum var. devians – synonym of Laevicardium crassum
Cardium norvegicum var. gibba – synonym of Laevicardium crassum
Cardium norvegicum var. lineolata – synonym of Laevicardium crassum
Cardium norvegicum var. marmorata – synonym of Laevicardium crassum
Cardium norvegicum var. mediterranea – synonym of Laevicardium crassum
Cardium norvegicum var. pallida – synonym of Laevicardium crassum
Cardium norvegicum var. ponderosa – synonym of Laevicardium crassum
Cardium norvegicum var. rotunda – synonym of Laevicardium crassum
Cardium novum – synonym of Acanthocardia echinata
Cardium obtritum – synonym of Cerastoderma edule
Cardium ovale – synonym of Parvicardium ovale
Cardium pennanti – synonym of Laevicardium crassum
Cardium perrieri – synonym of Parvicardium minimum
Cardium propexum – synonym of Acanthocardia echinata
Cardium rectidens var. minor – synonym of Cerastoderma lamarcki
Cardium roseum – synonym of Parvicardium scabrum
Cardium rubrum – synonym of Lasaea rubra
Cardium rusticum – synonym of Acanthocardia tuberculata
Cardium scabrum – synonym of Parvicardium scabrum
Cardium serratum – synonym of Laevicardium crassum
Cardium solidum – synonym of Spisula solida
Cardium stultorum – synonym of Mactra stultorum
Cardium suediense – synonym of Parvicardium minimum
Cardium transversale – synonym of Parvicardium ovale
Cardium tuberculare – synonym of Acanthocardia tuberculata
Cardium tuberculatum – synonym of Acanthocardia tuberculata
Cardium tuberculatum var. mutica – synonym of Acanthocardia tuberculata
Cardium umbonatum – synonym of Cerastoderma lamarcki
Cardium vitellinum – synonym of Laevicardium crassum
Cardium vulgare – synonym of Cerastoderma edule
Cardium vulgatum – synonym of Cerastoderma edule
Carychium personatum – synonym of Ovatella myosotis
Catriona aurantia – synonym of Cuthona gymnota
Catriona gymnota – synonym of Cuthona gymnota
Cavolina amoena – synonym of Cuthona amoena
Cavolina aurantiaca – synonym of Cuthona gymnota
Cavolina caerulea – synonym of Cuthona caerulea
Cavolina farrani – synonym of Eubranchus farrani
Cavolina glottensis – synonym of Cuthona caerulea
Cavolina northumbrica – synonym of Cuthona viridis
Cavolina olivacea – synonym of Cuthona foliata
Cavolina viridis – synonym of Cuthona viridis
Cemoria flemingi – synonym of Puncturella noachina
Cemoria flemingiana – synonym of Puncturella noachina
Cemoria montaguana – synonym of Diodora graeca
Cemoria princeps – synonym of Puncturella noachina
Cenia cocksii – synonym of Limapontia senestra
Cenia corrugate – synonym of Limapontia senestra
Cenodagreutes coccyginus – synonym of Raphitoma linearis
Cerastoderma glaucum – synonym of Cerastoderma lamarcki
Cerastoderma nunninkae – synonym of Cerastoderma edule
Ceratisolen legumen – synonym of Pharus legumen
Ceratisolen legumiformis – synonym of Pharus legumen
Ceratosoma erinacea: – synonym of Ocenebra erinacea
Cerithiella hanleyana – synonym of Cerithiella metula
Cerithiella macrocephala – synonym of Cerithiella metula
Cerithiolum paludosum – synonym of Bittium reticulatum
Cerithiolum spina – synonym of Bittium reticulatum
Cerithiopsis acicula – synonym of Cerithiopsis tubercularis
Cerithiopsis aciculata – synonym of Cerithiopsis tubercularis
Cerithiopsis bizonalis – synonym of Cerithiella metula
Cerithiopsis clarkii – synonym of Cerithiopsis tubercularis
Cerithium afrum – synonym of Bittium reticulatum
Cerithium angustum – synonym of Bittium reticulatum
Cerithium bicinctum – synonym of Cerithiella metula
Cerithium danielsseni – synonym of Cerithiella metula
Cerithium gracile – synonym of Cerithiella metula
Cerithium granulosum – synonym of Bittium reticulatum
Cerithium jadertinum – synonym of Bittium reticulatum
Cerithium lima – synonym of Bittium reticulatum
Cerithium metula – synonym of Cerithiella metula
Cerithium metulatum – synonym of Cerithiella metula
Cerithium nitidum – synonym of Cerithiella metula
Cerithium perversum – synonym of Cheirodonta pallescens
Cerithium perversum var. pallescens – synonym of Cheirodonta pallescens
Cerithium procerum – synonym of Cerithiella metula
Cerithium pygmaeum – synonym of Cerithiopsis tubercularis
Chalidis caerulea – synonym of Limapontia capitata
Chalidis nigricans – synonym of Limapontia capitata
Chalmys sulcata arata – synonym of Chlamys sulcata
Chama aculeata – synonym of Hiatella arctica
Chamelea gallina – synonym of Chamelea striatula
Charonia mirabilis – synonym of Charonia lampas
Chemnitzia jeffreysii – synonym of Turbonilla jeffreysii
Chemnitzia rufescens – synonym of Turbonilla rufescens
Chiton achatinus – synonym of Callochiton septemvalvis
Chiton albus – synonym of Ischnochiton albus
Chiton aselloides – synonym of Ischnochiton albus
Chiton asellus: – synonym of Leptochiton asellus
Chiton cancellatus – synonym of Leptochiton cancellatus
Chiton cimex – synonym of Lepidochitona cinerea
Chiton cimicinus – synonym of Lepidochitona cinerea
Chiton cimicinus: – synonym of Leptochiton asellus
Chiton cinereus – synonym of Lepidochitona cinerea
Chiton cinereus – synonym of Tonicella rubra
Chiton crinitus – synonym of Acanthochitona crinita
Chiton crinitus – synonym of Acanthochitona fascicularis
Chiton discrepans – synonym of Acanthochitona fascicularis
Chiton doriae – synonym of Callochiton septemvalvis
Chiton euplaeae – synonym of Callochiton septemvalvis
Chiton fascicularis – synonym of Acanthochitona crinita
Chiton fascicularis – synonym of Acanthochitona fascicularis
Chiton fascicularis var. attenuata – synonym of Acanthochitona crinita
Chiton fascicularis var. major – synonym of Acanthochitona fascicularis
Chiton fascicularis var. minor – synonym of Acanthochitona crinita
Chiton fascicularis var. rubra – synonym of Acanthochitona fascicularis
Chiton flemingius – synonym of Tonicella marmoreus
Chiton fulminatus – synonym of Tonicella marmoreus
Chiton fuscatus – synonym of Lepidochitona cinerea
Chiton fuscatus: – synonym of Leptochiton asellus
Chiton hanleyi – synonym of Hanleya hanleyi
Chiton incarnatus – synonym of Tonicella rubra
Chiton laevigatus – synonym of Tonicella marmoreus
Chiton laevis – synonym of Callochiton septemvalvis
Chiton laevis – synonym of Tonicella rubra
Chiton latus – synonym of Tonicella marmoreus
Chiton latus – synonym of Tonicella rubra
Chiton marginatus – synonym of Lepidochitona cinerea
Chiton marmoreus var. caerulea – synonym of Tonicella marmoreus
Chiton minimus – synonym of Ischnochiton albus
Chiton minimus – synonym of Tonicella rubra
Chiton onyx – synonym of Acanthochitona crinita
Chiton oryza – synonym of Ischnochiton albus
Chiton pictus – synonym of Tonicella marmoreus
Chiton quinquivalvis – synonym of Lepidochitona cinerea
Chiton ruber – synonym of Tonicella marmoreus
Chiton ruber – synonym of Tonicella rubra
Chiton ruber var. oblonga – synonym of Tonicella rubra
Chiton sagrinatus – synonym of Ischnochiton albus
Chiton scoticus: – synonym of Leptochiton asellus
Chiton scytodesma – synonym of Callochiton septemvalvis
Chiton septemvalvis – synonym of Callochiton septemvalvis
Chiton submarmoreus – synonym of Tonicella marmoreus
Chiton tuberculatus – synonym of Leptochiton cancellatus
Chiton variegatus – synonym of Lepidochitona cinerea
Chlamus sulcata sulcata – synonym of Chlamys sulcata
Chlamys bruei coeni – synonym of Chlamys varia
Chlamys bruei var. sulcata – synonym of Chlamys sulcata
Chlamys distorta – synonym of Crassadoma pusio
Chlamys furtiva – synonym of Palliolum furtivum
Chlamys opercularis – synonym of Aequipecten opercularis
Chlamys septemradiata – synonym of Pseudamussium septemradiatum
Chlamys striata – synonym of Palliolum striatum
Chlamys tigerina – synonym of Palliolum tigerinum
Chlamys varia var. aurantia – synonym of Chlamys varia
Chrysallida decussata – synonym of Chrysallida sarsi
Chrysallida indistincta – synonym of Chrysallida sarsi
Chrysallida lacourti – synonym of Chrysallida pellucida
Chrysallida obtusa – synonym of Chrysallida interstincta
Chrysallida spiralis – synonym of Chrysallida pellucida
Cingula aculea – synonym of Onoba aculea
Cingula alderi – synonym of Obtusella intersecta
Cingula beani – synonym of Alvania beani
Cingula cingillus – synonym of Cingula trifasciata
Cingula nikolarianae – synonym of Hyala vitrea
Cingula semicostata: – synonym of Onoba semicostata
Cingula semistriata – synonym of Crisilla semistriata
Cingula striata – synonym of Onoba semicostata
Circe minima – synonym of Gouldia minima
Circe minima var. minor – synonym of Gouldia minima
Circe striata – synonym of Gouldia minima
Circe undulata – synonym of Gouldia minima
Circomphalus casina – synonym of Venus casina
Circulus striatus var. bicarinata – synonym of Circulus striatus
Clathrus clathratulus – synonym of Epitonium clathratulum
Clathrus clathrus – synonym of Epitonium clathrus
Clathrus trevelyanus – synonym of Epitonium trevelyanum
Clathrus turtonis – synonym of Epitonium turtonis
Clathurella bourguignati – synonym of Raphitoma purpurea
Clathurella purpurea var. lineolata – synonym of Raphitoma purpurea
Clausina croulinensis – synonym of Thyasira croulinensis
Cleanthus montagui – synonym of Berthella plumula
Cloelia formosa – synonym of Hero formosa
Cloelia trilineata – synonym of Hero formosa
Cochlea catena – synonym of Euspira catena
Cochlea pallidula – synonym of Lacuna pallidula
Cochlea parva – synonym of Lacuna parva
Collisella tessulata – synonym of Tectura testudinalis
Colobocephalus costellatus – synonym of Colpodaspis pusillus
Colpodaspis pusilla – synonym of Colpodaspis pusillus
Colus pertenuis – synonym of Colus jeffreysianus
Conulus typus – synonym of Calliostoma zizyphinum
Coralliophila rolani – synonym of Nucella lapillus
Corambe batava – synonym of Corambe obscura
Corambe sargassicola – synonym of Corambe obscura
Corambella baratariae – synonym of Corambe obscura
Corambella carambola – synonym of Corambe obscura
Corambella depressa – synonym of Corambe obscura
Corbula costellata – synonym of Cardiomya costellata
Corbula curta – synonym of Corbula gibba
Corbula gibba var. albida – synonym of Corbula gibba
Corbula gibba var. fusca – synonym of Corbula gibba
Corbula gibba var. maxima – synonym of Corbula gibba
Corbula gibba var. radiata – synonym of Corbula gibba
Corbula nucleus – synonym of Corbula gibba
Corbula ovata – synonym of Corbula gibba
Corbula rosea – synonym of Corbula gibba
Coryphella frigida – synonym of Coryphella gracilis
Coryphella gracilis bostoniensis – synonym of Coryphella verrucosa
Coryphella landsburgi – synonym of Coryphella pellucida
Coryphella robusta – synonym of Coryphella verrucosa
Coryphella rufibranchialis – synonym of Coryphella pellucida
Coryphella rufibranchialis cocholata – synonym of Coryphella verrucosa
Coryphella rufibranchialis gracilis – synonym of Coryphella gracilis
Coryphella rufibranchialis var. clavigera – synonym of Coryphella gracilis
Coryphella rutila – synonym of Coryphella pellucida
Coryphella verrucosa gracilis – synonym of Coryphella gracilis
Coryphella verrucosa rufibranchialis – synonym of Coryphella verrucosa
Coryphella verrucosa smaragdina – synonym of Coryphella gracilis
Coryphella verrucosa verrucosa – synonym of Coryphella browni
Coryphella verrucosa verrucosa – synonym of Coryphella pellucida
Coryphella verrucosa verrucosa – synonym of Coryphella verrucosa
Cranchia megalops – synonym of Teuthowenia megalops
Crassina britannica – synonym of Astarte sulcata
Crassina convexiuscula – synonym of Astarte montagui
Crassina danmoniensis – synonym of Astarte sulcata
Crassina elliptica – synonym of Astarte elliptica
Crassina obliqua – synonym of Astarte montagui
Crassina ovata – synonym of Astarte elliptica
Crassina semisulcata – synonym of Astarte borealis
Crassodoma distorta – synonym of Crassadoma pusio
Crassostrea angulata – synonym of Crassostrea gigas
Crassostrea laperousii – synonym of Crassostrea gigas
Crassostrea posjetica – synonym of Crassostrea gigas
Crassostrea talienwhanensis – synonym of Crassostrea gigas
Crassostrea virginiana – synonym of Crassostrea virginica
Cratena amoena – synonym of Cuthona amoena
Cratena amoena – synonym of Cuthona rubescens
Cratena aurantia – synonym of Cuthona gymnota
Cratena aurantiaca – synonym of Cuthona gymnota
Cratena caerulea – synonym of Cuthona caerulea
Cratena foliata – synonym of Cuthona foliata
Cratena glotensis – synonym of Cuthona caerulea
Cratena gymnota – synonym of Cuthona gymnota
Cratena nana – synonym of Cuthona nana
Cratena olivacea – synonym of Cuthona foliata
Cratena pustulata – synonym of Cuthona pustulata
Cratena stipata – synonym of Cuthona viridis
Cratena vittata – synonym of Eubranchus vittatus
Cratenopsis amoena – synonym of Cuthona amoena
Cratenopsis concinna – synonym of Cuthona concinna
Cratenopsis pustulata – synonym of Cuthona pustulata
Crypta densata – synonym of Crepidula fornicata
Cryptodon croulinensis var. alta – synonym of Thyasira equalis
Cryptodon equalis – synonym of Thyasira equalis
Cryptodon ferruginosus – synonym of Thyasira ferruginea
Cryptodon obesus – synonym of Thyasira equalis
Cryptodon obsoletus – synonym of Thyasira croulinensis
Cultellus adriaticus – synonym of Phaxas pellucidus
Cultellus pellucidus – synonym of Phaxas pellucidus
Cuneus foliatus – synonym of Irus irus
Cuneus reticulatus – synonym of Tapes decussata
Cuneus reticulatus – synonym of Venerupis senegalensis
Cuneus vittatus – synonym of Donax vittatus
Cuspidaria costellata – synonym of Cardiomya costellata
Cuspidaria striolata – synonym of Cardiomya costellata
Cuspidaria typa – synonym of Cuspidaria cuspidata
Custiphorus vesiculosus – synonym of Calliopaea bellula
Cuthona aurantia – synonym of Cuthona gymnota
Cuthona olivacea – synonym of Cuthona foliata
Cuthona peachi – synonym of Cuthona nana
Cuthona stipata – synonym of Cuthona viridis
Cyclopecten similis – synonym of Hyalopecten similis
Cyclostrema mirandum – synonym of Tornus subcarinatus
Cyclostrema umbilicostriatum – synonym of Dikoleps pusilla
Cylichna acuminata – synonym of Volvulella acuminata
Cylichna cylindracea var. linearis – synonym of Cylichna cylindracea
Cylichna elongata – synonym of Cylichna cylindracea
Cylichna mammillata – synonym of Retusa truncatula
Cylichna nitidula – synonym of Retusa umbilicata
Cylichna obtusa – synonym of Retusa obtusa
Cylichna truncata – synonym of Retusa truncatula
Cylichna truncatella – synonym of Retusa truncatula
Cylichna umbilicata – synonym of Retusa umbilicata
Cypraea arctica – synonym of Trivia arctica
Cypraea bullata – synonym of Trivia arctica
Cypraea coccinella – synonym of Trivia arctica
Cypraea europaea var. tripunctata – synonym of Trivia monacha
Cypraea monacha – synonym of Trivia monacha
Cypraea voluta – synonym of Erato voluta
Cyprina islandica – synonym of Arctica islandica
Cyrena panormitana – synonym of Spisula solida
Cytharella coractata – synonym of Mangelia coarctata
Cytharella smithi – synonym of Mangelia smithii
Cytherea apicalis – synonym of Gouldia minima
Cytherea cygnus – synonym of Venus casina
Cytherea lunaris – synonym of Dosinia lupina
Cytherea minuta – synonym of Gouldia minima
Cytherea sismondae – synonym of Gouldia minima