Trachellipoda _Colimacea_ Helix, Carocolla, Anastoma, Helicina, Pupa, Clausilia, Bulinus, Achatina, Succinea, Auricula, Cyclostoma. _Lymneana_ Planorbis, Physa, Lymnæa. _Melaniana_ Melania, Melanopsis, Pirena. _Peristomata_ Valvata, Paludina, Ampullaria. _Neritacea_ Navicella, Neritina, Nerita, Natica, Janthina. _Macrostomata_ Stomatia, Stomatella, Haliotis. _Plicacea_ Tornatella, Pyramidella. _Scalariana_ Vermetus, Scalaria, Delphinula. _Turbinacea_ Solarium, Rotella, Trochus, Monodonta, Turbo, Planaxis, Phasianella, Turitella. _Canalifera_ Cerithium, Pleurotoma, Turbinella, Cancellaria, Fasciolaria, Fusus, Pyrula, Ranella, Murex, Triton. _Alata_ Rostellaria, Strombus, Pteroceras. _Purpurifera_ Cassidaria, Cassis, Ricinula, Purpura, Monoceros, Concholepas, Harpa, Dolium, Buccinum, Eburna, Terebra. _Columellata_ Columbella, Mitra, Voluta, Marginella, Volvaria. _Convoluta_ Ovulum, Cypræa, Oliva, Ancillaria, Conus.