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 Helicoidea Rafinesque, 1815
             Family Hygromiidae Tryon, 1866
               Subfamily Hygromiinae Tryon, 1866
                 01 Genus Hygromia Risso, 1826
                 02 Genus Altaicola Lindholm, 1927
                 03 Genus Angiomphala Vaught, 1989, orth. inval. see Genus Angiomphalia Schileyko, 1978
                 04 Genus Archaica Schileyko, 1970
                 05 Genus Chilanodon Westerlund, 1897
                 06 Genus Ciliella Mousson, 1872
                 07 Genus Circassina Hesse, 1921
                 08 Genus Cretigena Schileyko, 1972
                 09 Genus Diodontella Lindholm, 1929
                 10 Genus Euarchaica Schileyko, 1970
                 11 Genus Euomphalia Westerlund, 1889
                 12 Genus Fruticocampylaea Kobelt, 1871
                 13 Genus Karabaghia Lindholm, 1927
                 14 Genus Lejeania Ancey, 1887
                 15 Genus Lindholmomneme Haas, 1936
                 16 Genus Metafruticicola Ihering, 1892
                 17 Genus Monachoides Gude & Woodward, 1921
                 18 Genus Nanaja Schileyko, 1978
                 19 Genus Perforatella Schlüter, 1838
                 20 Genus Portugala Gittenberger, 1980
                 21 Genus Prosthenomphala Vaught, 1989, orth. inval. see Genus Prostenomphalia Baidashnikov, 1985
                 22 Genus Pyrenaearia Hesse, 1921
                 23 Genus Semifruticicola Wagner, 1914
                 24 Genus Stenomphalia Lindholm, 1927
                 25 Genus Urticicola Lindholm, 1927
                 26 Genus Zenobiella Gude & Woodward, 1921
                 27 Genus Xeromunda Monterosato, 1892