Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Divasibranchia Minichev & Starobogatov, 1975
       Order Stylommatophora Schmidt, 1855 see Infraorder Stylommatophora Schmidt, 1855
         (Helicid Sigmurethra)
           Superfamily Gastrodontoidea Tryon, 1866 [monotypic]
             Family Gastrodontidae Tryon, 1866
               Genus Zonitoides Lehmann, 1862
                 1 Subgenus Zonitellus Baker, 1928
                 2 Subgenus Pseudohyalus Baker, 1929