Subclass: Prosobranchia
Clade: Patellogastropoda
Superfamily: Patelloidea (True Limpets)
Family: Patellidae
Family: Acmaidae
Family: Lottiidae
Family: Lepetidae
Superfamily: Nacelloidea
Family: Nacellidae
Clade: Vetigastropoda
Superfamily: Haliotoidea
Family: Haliotidae (Abalones)
Superfamily: Fissurelloidea (Keyhole Limpets)
Family: Fissurellidae
Superfamily: Pleurotomarioidea
Family: Pleurotomariidae
Superfamily: Trochoidea
Family: Trochidae (Top Shells)
Family: Stomatellidae
Family: Calliostomatidae
Superfamily: Turbinoidea
Family: Turbinidae
Clade: Cycloneritimorpha
Superfamily: Neritoidea (Nerites)
Family: Neritidae
Superfamily: Helicinoidea
Family: Helicinidae (terrestrial)
Superfamily: Hydrocenoidea
Family: Hydrocenidae (terrestrial)
[others]
Informal Group: Architaenioglossa
Superfamily: Cyclophoroidea (Land Snails)
Family: Cyclophoridae
Superfamily: Viviparoidea (Freshwater Snails)
Family: Viviparidae
Superfamily: Valvatoidea (Freshwater Snails)
Clade: Sorbeconcha
Superfamily: Cerithioidea
Family: Cerithiidae (Ceriths)
Family: Modulidae
Family: Pachychilidae
Family: Potamididae
Family: Siliquariidae
Family: Thiaridae
Family: Triphoridae
Family: Turritellidae (Turritellas)
Family: Vermetidae
Clade: Littorinimorpha
Superfamily: Calyptraeoida
Family: Calyptraeidae
Superfamily: Capuloidea
Family: Capulidae
Superfamily: Cypraeoidea
Family: Cypraeidae
Family: Ovulidae
Superfamily: Ficoidea
Family: Ficidae
Superfamily: Crepidulodea
Family: Crepidulidae
Family: Capulidae (Cap Shells)
Family: Xenophoridae
Superfamily: Littorinoidea
Family: Littorinidae (Periwinkles)
Family: Pickworthiidae
Family: Pomatiidae
[Others]
Superfamily: Naticoidea
Family: Naticidae
Superfamily: Rissoidea
Family: Rissoidae
Family: Barleeidae
Family: Bithynidae
Family: Caecidae
Family: Tornidae (incl Vitrinellinae)
Family: Truncatellidae
[Others]
Superfamily: Stromboidea
Family: Strombidae
Family: Aporrhaidae
Family: Struthiolariidae
[Others]
Superfamily: Tonnoidea
Family: Cassidae
Family: Tonnidae (Tun Shells)
Family: Bursidae
Family: Personidae
Family: Ranellidae
[Others]
Superfamily: Vanikoroidea
Family: Vanikoridae
Family: Hipponicidae
Superfamily: Velutinoidea
Family: Triviidae
Superfamily: Vermetoidea
Family: Vermetidae
Superfamily: Xenophoroidea
Family: Xenophoridae
Group: Ptenoglossa
Superfamily: Epitonioidea
Family: Epitoniidae
Family:Janthinidae
Superfamily: Eulimoidea
Family: Eulimidae
Family: Aclididae
Superfamily: Triphoroidea
Family: Triphoridae
Family: Cerithiopsidae
Clade: Neogastropoda
Superfamily: Buccinoidea
Family: Buccinidae
Family: Colubrariidae
Family: Columbellidae
Family: Fasciolariidae
Family: Nassariidae
Family: Melongenidae
Superfamily: Muricoidea
Family: Muricidae (Murex Shells)
Family: Babyloniidae
Family: Coralliophilidae (Coral Shells)
Family: Costellariidae
Family: Harpidae (Harp Shells)
Family: Marginellidae
Family: Mitridae
Family: Strepsiduridae
Family: Turbinellidae
Family: Volutidae (Volutes)
Superfamily: Olivoidea
Family: Olividae (Olive Shells)
Family: Olivellidae (Olive Shells)
Superfamily: Pseudolivoidea
Family: Pseudolividae
[Others}
Superfamily: Conoidea
Family: Conidae (Cone Shells)
Family: Clavatulidae
Family: Terebridae (Auger Shells)
Family: Turridae (Turrids)
Superfamily: Cancellarioidea
Family: Cancellariidae
Clade: Heterobranchia
Superfamily: Acteonoidea
Family: Acteonidae
Family: Aplustridae (“Hydatinidae”)
Family: Bullinidae
[Others]
Superfamily: Architectonicoidea
Family: Architectonicidae
Superfamily: Mathildoidea
Family: Mathildidae
Superfamily: Pyramidelloidea
Family: Pyramidellidae
Superfamily: Ringiculoidea
Family: Ringiculidae
Superfamily: Rissoelloidea
Family: Rissoellidae
Superfamily: Valvatoidea
Family: Valvatidae
Informal Group: Opisthobranchia
Clade: Cephalaspidea
Superfamily: Bulloidea
Family: Bullidae
Superfamily: Diaphanoidea
Family: Diaphanidae
Family: Notodiaphanidae
Subfamily: Haminoeidea
Family: Haminoeidae
Superfamily: Philinoidea
Family: Philinidae
Family: Cylichnidae
Family: Retusidae
[Others]
Superfamily: Philinacea
Family: Scaphandridae
Family Gastropteridae
Family Aglajidae
Family: Philinidae
Family: Philioglossidae
Superfamily: Runcinoidea
Family: Runcinidae
Clade: Thecosomata (Pteropoda -sea butterflies)
Superfamily: Cavolinioidea
Family: Cavolinidae [Cuvieridae]
Family: Limacinidae
Superfamily: Cymbulioidea
Family: Cymbuliidae
Family: Desmopteridae
Family: Peraclidae
Clade: Gymnosomata (naked Pteropods)
Superfamily: Clionoidea
Family: Clionidae
[Others]
Hewan 