Littorinoidea Littorinimorpha Clenchiellidae Bithyniidae Nacellidae Proctonotidae Rissoinidae Facelinidae Paludomidae Colpodaspididae Addisoniidae Pleurobranchidae Conorbidae Bornella Systellommatophora Caliphyllidae Hermaeidae Personidae Cephalaspidea Glaucidae Apataidae Enidae Cochlostomatinae Marginellidae Bathyphytophilidae Carinariidae Osteopeltidae Planaxidae Haliotidae Zonitidae Notaeolidia Nassariidae Bursidae Streptaxidae Agriolimacidae Athoracophoridae Strictispiridae Tegulidae Onchidiidae Pleurotomariidae Pomatiopsidae Planorbidae Achatinidae Dendronotidae Cymatiidae Discidae Cymbuliidae Clausiliidae Annulariidae Anaspidea Diastomatidae Harpidae Phi…

ilinoglossidae Elachisinidae Arionidae Basommatophora Oxynoidae Partulidae Onchidorididae Urocoptidae Assimineidae Vanikoridae Raphitomidae Dirona Amnicolidae Cerithiidae Diplommatinidae Aglajidae Scyllaeidae Haloceratidae Spiraxidae Angariidae Volvatellidae Neritopsidae Eatoniellidae Camaenidae Cepolidae (gastéropodes) Entomotaeniata Turbinellidae Cancellariidae Flabellinopsidae Drilliidae Pisaniidae Philinidae Madrellidae Cystiscidae Colubrariidae Ma

thildidae Mangeliidae Doridomorpha gardineri Triviidae Haminoeidae Umbraculidae Peltospiridae Aegires Bathysciadiidae Truncatellidae Mandelia mirocornata Bathydorididae Retusidae Bucaniidae Hexabranchus Tonnidae Janolidae Colloniidae Olividae Babyloniidae Lottiidae Siliquariidae Costellariidae Melanopsidae Buccinidae Pyramidellidae Bosellia Moitessieriidae Architectonicidae Costasiella Heterostropha Limapontiidae Physidae Tornidae Eubranchidae Orthonychiidae Volutidae Pachychilidae Cumanotus Cochliopidae Cycloneritimorpha Akiodorididae Sorbeoconcha Acroloxidae Cocculinellidae Viviparidae Actinocyclidae Dorididae Potamididae Arminida