Phylum Mollusca Linnaeus, 1758 - molluscs Class Gastropoda Cuvier, 1795 - snails and slugs Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795 Order Neogastropoda Wenz, 1938 see Suborder Neogastropoda Wenz, 1938 Suborder Stenoglossa Bouvier, 1887 Superfamily Conoidea Fleming, 1822 Genus Crassopleura Monterosato, 1884