Mollusca Linnaeus, 1758 - molluscs
see Phylum Mollusca Linnaeus, 1758
Gastropoda Cuvier, 1795
see Class Gastropoda Cuvier, 1795
Clade Neritimorpha Koken, 1896
see Order Neritimorpha Golikov & Starobogatov, 1975
Clade Cycloneritimorpha Frýda, 1998
Superfamily Helicinoidea Férussac, 1822
Family Helicinidae Férussac, 1822 - helicinids
Subfamily Ceratodiscinae Pilsbry, 1927