Kingdom Animalia Linnaeus, 1758 - animals 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 Family Olividae Latreille, 1825 - olive snails Genus Oliva Bruguiére, 1789