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
                 01 Genus Zonites Montfort, 1810
                 02 Genus Aegopinella Lindholm, 1927
                 03 Genus Aegopis Fitzinger, 1833
                 04 Genus Allaegopis Riedel, 1979
                 05 Genus Araboxychilus Riedel, 1977
                 06 Genus Birulana Lindholm, 1922
                 07 Genus Doraegopis Riedel, 1982
                 08 Genus Glyphyalinia Martens, 1892
                 09 Genus Hyalinia Agassiz, 1837
                 10 Genus Mesomphix Rafinesque, 1819
                 11 Genus Nesovitrea Cooke, 1921
                 12 Genus Omphalina Rafinesque, 1831
                 13 Genus Oxychilops Boettger, 1930
                 14 Genus Pontoxychilus Riedel, 1970
                 15 Genus Oxychilus Fitzinger, 1833
                 16 Genus Paraegopis Hesse, 1910
                 17 Genus Paravitrea Pilsbry, 1898
                 18 Genus Patulopsis Strebel & Pfeffer, 1880
                 19 Genus Pilsbryna Baker, 1929
                 20 Genus Retinella Fischer, 1877
                 21 Genus Schistophallus Wagner, 1914
                 22 Genus Troglaegopis Riedel & Radja, 1983
                 23 Genus Vitrinozonites Binney, 1883, nom. inval. see Genus Vitrinizonites Binney, 1879