Phylum [Mollusca] Linnaeus, 1758 - molluscs Class Gastropoda Cuvier, 1795 - snails and slugs Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795 Order Archaegastropoda see Order Archaeogastropoda Thiele, 1925 Superfamily Trochacea see Superfamily Trochoidea Rafinesque, 1815 Family Phasianellidae Swainson, 1840 1 Genus Phasianella Lamarck, 1804