Phylum Mollusca Linnaeus, 1758 - molluscs Count: [*†*] 8c;49o;641f;6099g; †2f;162g [24 Jan 2022] Class Gastropoda Cuvier, 1795 - snails and slugs Count: [*] 21o;416f;4650g; †136g [13 Dec 2021] Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795 Count: [*†*] 6o;172f;2489g; †135g [14 Oct 2021] Order Caenogastropoda Cox, 1960 see Superorder Caenogastropoda Cox, 1960 Count: [*†*] 110f;1268g; †39g [17 Sep 2021] Superfamily Rissooidea Gray, 1847 Count: [*†*] 26f;415g; †3g [9 Jul 2021] Family Bithyniidae Gray, 1857 Count: [*] 11g [4 Jul 2021] Genus Kolhymamnicola Starobogatov & Budnikova, 1976 Count: -