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GASTROPODA
 ACLIDIDAE |
 ACTEONIDAE |
 ADEORBIDAE |
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 ARMINIDAE |
 ASSIMINEIDAE |
 ATLANTIDAE |
 BARLEEIDAE |
 BORSONIDAE |
 BUCCINIDAE |
 BULLIDAE |
 BURSIDAE |
 CAECIDAE |
 CALIPHYLLIDAE |
 CALLIOSTOMATIDAE |
 CALMIDAE |
 CALYPTRAEIDAE |
 CANCELLARIIDAE |
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 CASSIDAE |
 CAVOLINIIDAE |
 CERITHIIDAE |
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 CHILODONTIDAE |
 CHROMODORIDIDAE |
 CIMIDAE |
 CINGULOPSIDAE |
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 COLUMBELLIDAE |
 CONIDAE |
 CORALLIOPHILIDAE |
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 CYLICHNIDAE |
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 DENDRODORIDIDAE |
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 DISCODORIDIDAE |
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 DOTIDAE |
 DRILLIDAE |
 EBALIDAE |
 ELLOBIDAE |
 ELLOBIIDAE |
 EMBLETONIIDAE |
 EPITONIIDAE |
 EUBRANCHIDAE |
 EULIMIDAE |
 FACELINIDAE |
 FASCIOLARIIDAE |
 FISSURELLIDAE |
 FLABELLINIDAE |
 FOSSARIDAE |
 GASTROPTERIDAE |
 GONIODORIDIDAE |
 HALIOTIDAE |
 HAMINOEIDAE |
 HANCOCKIIDAE |
 HERMAEIDAE |
 HORAICLAVIDAE |
 HYALOGYRINIDAE |
 HYDROBIIDAE |
 JANTHINIDAE |
 LAMELLARIDAE |
 LEPETIDAE |
 LIMACINIDAE |
 LIMAPONTIIDAE |
 LIMAPONTIINAE |
 LITTORINIDAE |
 LOTTIIDAE |
 MANGELIIDAE |
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 MITROMORPHIDAE |
 MURICIDAE |
 NASSARIIDAE |
 NATICIDAE |
 NERITIDAE |
 OMALOGYRIDAE |
 ONCHIDIIDAE |
 ONCHIDORIDIDAE |
 OTINIDAE |
 OVULIDAE |
 OXYNOIDAE |
 PATELLIDAE |
 PERACLIDAE |
 PHASIANELLIDAE |
 PHILINIDAE |
 PHILINOGLOSSIDAE |
 PHYLLIDIIDAE |
 PLACOBRANCHIDAE |
 PLEUROBRANCHIDAE |
 PNEUMODERMATIDAE |
 POLYCERIDAE |
 PROCTONOTIDAE |
 PSEUDOVERMIDAE |
 PYRAMIDELLIDAE |
 RANELLIDAE |
 RAPHITOMIDAE |
 RETUSIDAE |
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 RISSOIDAE |
 RUNCINIDAE |
 SCISSURELLIDAE |
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 TERGIPEDIDAE |
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 TRIPHORIDAE |
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 VERMETIDAE |
 VOLUTIDAE |