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 Rissoacea Gray, 1847 see Superfamily Rissooidea Gray, 1847 1 Family Rissoidae Gray, 1847