Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Heterobranchia Burmeister, 1837 [monotypic] see Superorder Heterobranchia Burmeister, 1837
       Order Heterostropha Fischer, 1885
         Superfamily Rissoelloidea Gray, 1850
           Family Rissoellidae Gray, 1850 [monotypic]
             Genus Rissoella Gray, 1847
               1 Subgenus Jeffreysilla Thiele, 1925
               2 Subgenus Jeffreysiella Thiele, 1912
               3 Subgenus Zelaxitas Finlay, 1926
               4 Subgenus Rissoella Gray, 1847