Helicinoidea Cycloneritimorpha Neritopsina Caliphyllidae Cochlostomatinae Marginellidae Bithyniidae Zonitidae Carinariidae Notaeolidia Systellommatophora Apataidae Conorbidae Rissoinidae Glaucidae Nassariidae Haliotidae Bathyphytophilidae Planaxidae Hermaeidae Facelinidae Proctonotidae Clenchiellidae Nacellidae Personidae Pleurobranchidae Bornella Colpodaspididae Enidae Paludomidae Osteopeltidae Cephalaspidea Addisoniidae Agriolimacidae Onchidiidae Discidae Raphitomidae Vanikoridae Philinoglossidae Eatoniellidae Tegulidae Clausiliidae Haloceratidae Anaspidea Camaenidae Diastomatidae Angariidae Volvatellidae Cymbu…

uliidae Diplommatinidae Cerithiidae Cymatiidae Pomatiopsidae Spiraxidae Onchidorididae Elachisinidae Harpidae Arionidae Planorbidae Strictispiridae Pleurotomariidae Annulariidae Dirona Partulidae Athoracophoridae Basommatophora Neritopsidae Amnicolidae Dendronotidae Scyllaeidae Assimineidae Achatinidae Aglajidae Urocoptidae Oxynoidae Gymnosomata Atlantidae Neotaenioglossa Cuthonidae Pupillidae Flabellinidae Turritellidae Acochlidiacea Velu

tinidae Muricidae Doridoxa Piseinotecus Capulidae Cochlespiridae Juliidae Dotidae Cyrtoneritida Charopidae Scaphandridae Craspedopomatidae Xenophoridae Mitromorphidae Fionidae Cyclophoridae Mesogastropoda Pomatiidae Diaphanidae Cingulopsidae Modulidae Lomanotus Milacidae Ampullariidae Melongenidae Soleniscidae Discodorididae Ranellidae Limacidae Xenocratena suecica Architaenioglossa Bursidae Streptaxidae Clionidae Vetigastropoda Aplustridae Goniodorididae Trinchesiidae Runcinida (ordre) Pinufius rebus Canariellidae Pseudovermis Terebridae Fissurellidae Akera Goniasmatidae Epitoniidae Pediculariidae Hydrobiidae Rastodentidae Hygromiidae Clathurellidae Cassidae Eucyclida