Phylum Mollusca Linnaeus, 1758 - molluscs Class Gastropoda Cuvier, 1795 - snails and slugs Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795 Order Caenogastropoda Cox, 1960 see Superorder Caenogastropoda Cox, 1960 Superfamily Rissooidea Gray, 1847 Family Bithyniidae Gray, 1857 Genus Limnitesta orth. inval. see Genus Liminitesta Mandahl-Barth, 1974