Phylum Mollusca Linnaeus, 1758 - molluscs
Conchifera Gegenbaur, 1878
see Subphylum Conchifera Gegenbauer, 1878
Cyrtosoma
Class Gastropoda Cuvier, 1795 - snails and slugs
Orthogastropoda Ponder & Lindberg, 1995
see Subclass Orthogastropoda Ponder & Lindberg, 1995
Apogastropoda Salvini-Plawen & Haszprunar, 1987
Caenogastropoda Cox, 1960
see Superorder Caenogastropoda Cox, 1960
1 Neogastropoda Wenz, 1938
see Infraorder Neogastropoda Wenz, 1938