Phylum [Mollusca] Linnaeus, 1758 - molluscs Class Gastropoda Cuvier, 1795 - snails and slugs Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795 Order Mesogastropoda Thiele, 1925 - mesogastropods see [unranked] mesogastropods Suborder Taenioglossa see Order Mesogastropoda Thiele, 1925 Superfamily Cerithiacea FĂ©russac, 1819 see Superfamily Cerithioidea Fleming, 1822 [Family Vermetiidae] see Family Vermetidae Rafinesque, 1815