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 Hydrobiidae Stimpson, 1865
             Subfamily Cochliopinae Tryon, 1866
               1 Genus Cochliopa Stimpson, 1865
               2 Genus Clenchiella Abbott, 1948
               3 Genus Limnothauma Haas, 1955
               4 Genus Nanivitrea Thiele, 1927
               5 Genus Subcochliopa Morrison, 1946