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
         Suborder Mesurethra [monotypic]
           Superfamily Clausilioidea Gray, 1855 [monotypic]
             Family Clausiliidae Gray, 1855
               Subfamily Megalophaedusinae see Tribe Megalophaedusini Zilch, 1954
                 01 Genus Megalaphaedusa Millard, 1996, orth. inval. see Genus Megalophaedusa Boettger, 1877
                 02 Genus Bathyptychia Lindholm, 1925
                 03 Genus Dautzenbergiella Lindholm, 1924
                 04 Genus Formosana Boettger, 1877
                 05 Genus Fuchsiana Gredler, 1887
                 06 Genus Leptacme Ehrmann, 1927, nom. illeg.
                 07 Genus Lindholmiella Ehrmann, 1927
                 08 Genus Liparophaedusa Lindholm, 1924
                 09 Genus Luchuphaedusa Pilsbry, 1901
                 10 Genus Mesophaedusa Ehrmann, 1929
                 11 Genus Mundophaedusa Vaught, 1989, orth. inval. see Genus Mundiphaedusa Minato, 1979
                 12 Genus Nesiophaedusa Pilsbry, 1905
                 13 Genus Pauciphaedusa Minato & Habe, 1983
                 14 Genus Protophaedusa Szekeres, 1970
                 15 Genus Rufospira Möllendorff, 1883
                 16 Genus Selenophaedusa Lindholm, 1924
                 17 Genus Streptodera Lindholm, 1925