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 Vitrinoidea Fitzinger, 1833 see Superfamily Limacoidea Batsch, 1789
             Family Zonitidae Mörch, 1864
               Subfamily Zonitinae Mörch, 1864 see Family Zonitidae Mörch, 1864
                 Genus Oxychilus Fitzinger, 1833
                   01 Subgenus Allogenes Gude, 1911
                   02 Subgenus Drouetia Gude, 1911
                   03 Subgenus Calloretinella Haas, 1934
                   04 Subgenus Conulopolita Boettger, 1879
                   05 Subgenus Eopolita Pollonera, 1916 see Genus Eopolita Pollonera, 1916
                   06 Subgenus Helicophana Westerlund, 1886
                   07 Subgenus Hiramia Pallary, 1939
                   08 Subgenus Lindholmella Boettger, 1930
                   09 Subgenus Longiphalus Vaught, 1989, orth. inval. see Subgenus Longiphallus Riedel, 1958
                   10 Subgenus Mediterranea Clessin, 1880
                   11 Subgenus Morlina Wagner, 1914
                   12 Subgenus Ortizius Forcart, 1957
                   13 Subgenus Riedelius Hudec, 1961