Mollusca Linnaeus, 1758 - molluscs see Phylum Mollusca Linnaeus, 1758 Gastropoda Cuvier, 1795 see Class Gastropoda Cuvier, 1795 Clade Vetigastropoda Salvini-Plawen, 1980 see Order Vetigastropoda Salvini-Plawen, 1980 Superfamily Seguenzioidea Verrill, 1884 Family Seguenziidae Verrill, 1884 Subfamily Davisianinae Egorova, 1972