Descrição das Famílias
| ABYSSOCHRYSIDAE | ACHATINIDAE | ACLIDIDAE | ACMAEIDAE |
| ACTEONIDAE | ADDISONIIDAE | AEGIRETIDAE | AEOLIDIIDAE |
| AKERIDAE | AMATHINIDAE | AMPHIBULIMIDAE | AMPULLARIIDAE |
| ANABATHRIDAE | ANATOMIDAE | ANCYLIDAE | ANOMIIDAE |
| APLUSTRIDAE | APLYSIIDAE | ARCHITECTONICIDAE | ARCIDAE |
| ARGONAUTIDAE | ATLANTIDAE | BARLEEIDAE | BORNELLIDAE |
| BOSELLIIDAE | BRADYBAENIDAE | BUCCINIDAE | BULIMULIDAE |
| BULLIDAE | BURSIDAE | CAECIDAE | CALIPHYLLIDAE |
| CALYPTRAEIDAE | CAMAENIDAE | CANCELLARIIDAE | CAPULIDAE |
| CARDIIDAE | CARDITIDAE | CASSIDAE | CAVOLINIIDAE |
| CERITHIIDAE | CERITHIOPSIDAE | CHAETODERMATIDAE | CHAETOPLEURIDAE |
| CHAMIDAE | CHAROPIDAE | CHILODONTIDAE | CHLAMYDOCONCHIDAE |
| CHROMODORIDIDAE | CLAUSILIDAE | COLUMBARIIDAE | COLUMBELLIDAE |
| CONDYLOCARDIIDAE | CONIDAE | CORALLIOPHILIDAE | CORBICULIDAE |
| CORBULIDAE | COSTELLARIIDAE | CRASSATELLIDAE | CUSPIDARIIDAE |
| CYLICHNIDAE | CYLINDROBULLIDAE | CYMBULIIDAE | CYPRAEIDAE |
| DENDRODORIDIDAE | DENTALIIDAE | DIAPHANIDAE | DIPLOMMATINIDAE |
| DISCODORIDIDAE | DONACIDAE | DREISSENIDAE | ELLOBIIDAE |
| ELYSIIDAE | ENTALINIDAE | EPITONIIDAE | ERATOIDAE |
| ERODONIDAE | EUCONULIDAE | EULIMIDAE | FACELINIDAE |
| FASCIOLARIIDAE | FERUSSACIIDAE | FICIDAE | FISSURELLIDAE |
| FLABELLINIDAE | FUSTIARIIDAE | GADILIDAE | GADILINIDAE |
| GALEOMMATIDAE | GASTROCHAENIDAE | GASTRODONTIDAE | GASTROPTERIDAE |
| GLAUCIDAE | GLOSSIDAE | GLYCYMERIDIDAE | GRYPHAEIDAE |
| HALIOTIDAE | HAMINOEIDAE | HANLEYIDAE | HARPIDAE |
| HELICINIDAE | HELMINTHOGLYPTIDAE | HERMAEIDAE | HIATELLIDAE |
| HIDROBIIDAE | HIDROBIIDAE | HIPPONICIDAE | HYDATINIDAE |
| HYRIIDAE | ISCHNOCHITONIDAE | ISOGNOMONIDAE | JANTHINIDAE |
| JULIIDAE | LAEVIDENTALIIDAE | LASAEIDAE | LEPETIDAE |
| LEPIDOPLEURIDAE | LIMACIDAE | LIMACINIDAE | LIMAPONTIIDAE |
| LIMIDAE | LIMIFOSSORIDAE | LIMOPSIDAE | LIOTIIDAE |
| LITIOPIDAE | LITTORINIDAE | LOTTIIDAE | LUCINIDAE |
| LYMNAEIDAE | LYONSIIDAE | LYONSIIDAE | MACTRIDAE |
| MALLEIDAE | MALLETIIDAE | MARGINELLIDAE | MATHILDIDAE |
| MEGALOBULIMIDAE | MEGALOMASTOMIDAE | MEGASPIRIDAE | MELONGENIDAE |
| MESODESMATIDAE | MICROHEDYLIDAE | MITRIDAE | MODULIDAE |
| MURICIDAE | MYCETOPODIDAE | MYIDAE | MYTILIDAE |
| MYTILIDAE | NASSARIIDAE | NATICIDAE | NEOMENIIDAE |
| NERITIDAE | NOETIIDAE | NUCINELLIDAE | NUCULANIDAE |
| NUCULIDAE | OCTOPODIDAE | ODONTOSTOMIDAE | OLIVIDAE |
| OMALOGYRIDAE | ONCHIDIIDAE | ONCHIDORIDIDAE | ORTHALICIDAE |
| OSTREIDAE | OVULIDAE | OXYNOIDAE | PECTINIDAE |
| PEDICULARIIDAE | PERIPLOMATIDAE | PERSONIDAE | PETRICOLIDAE |
| PHASIANELLIDAE | PHENACOLEPADIDAE | PHOLADIDAE | PHYSIDAE |
| PINNIDAE | PISEINOTECIDAE | PISIDIIDAE | PLACOBRANCHIDAE |
| PLANAXIDAE | PLANORBIDAE | PLEUROCERIDAE | PLEUROTOMARIIDAE |
| PLICATULIDAE | POLYCERIDAE | POROMYIDAE | POTAMIDIDAE |
| POTIERIIDAE | PROPEAMUSSIIDAE | PROSERPINIDAE | PSAMMOBIIDAE |
| PSEUDOCOCCULINIDAE | PSEUDOLIVIDAE | PSEUDOVERMIDAE | PTERIIDAE |
| PULSELLIDAE | PYRAMIDELLIDAE | RANELLIDAE | RETUSIDAE |
| RHIZORIDAE | RHODOPIDAE | RINGICULIDAE | RISSOELLIDAE |
| RISSOIDAE | RUNCINIDAE | SCAPHANDRIDAE | SCISSURELLIDAE |
| SEGUENZIIDAE | SEMELIDAE | SILIQUARIIDAE | SIPHONARIIDAE |
| SIPHONODENTALIIDAE | SKENEIDAE | SOLAROPSIDAE | SOLECURTIDAE |
| SOLEMYIDAE | SOLENIDAE | SPIRAXIDAE | SPIRULIDAE |
| SPONDYLIDAE | SPORTELLIDAE | STOMATELLIDAE | STREPTAXIDAE |
| STROMBIDAE | STROPHOCHEILIDAE | SUBULINIDAE | SUCCINEIDAE |
| SYSTROPHIIDAE | TELLINIDAE | TEREBRIDAE | TERGIPEDIDAE |
| THAIDIDAE | THIARIDAE | THRACIIDAE | THYASIRIDAE |
| TINDARIIDAE | TJAERNOEIDAE | TONNIDAE | TORNIDAE |
| TRAPEZIIDAE | TRIPHORIDAE | TRIVIIDAE | TROCHIDAE |
| TURBINELLIDAE | TURBINIDAE | TURRIDAE | TURRITELLIDAE |
| UMBRACULIDAE | UNGULINIDAE | VANIKORIDAE | VASIDAE |
| VELUTINIDAE | VENERIDAE | VERMETIDAE | VERONICELLIDAE |
| VERTICORDIIDAE | VITRINELLIDAE | VOLUTIDAE | VOLVATELLIDAE |
| XENOPHORIDAE | ZONITIDAE |