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 Mentissoidinae orth. inval. see Subfamily Mentissoideinae Lindholm, 1924
                 01 Genus Mentissoidea Boettger, 1877
                 02 Genus Armenica Boettger, 1877
                 03 Genus Bitorquata Boettger, 1877
                 04 Genus Boettgeria Heynemann, 1863
                 05 Genus Elia Adams & Adams, 1855
                 06 Genus Euxina Boettger, 1877
                 07 Genus Euxinastra Boettger, 1888
                 08 Genus Euxinella Nordsieck, 1973, nom. illeg.
                 09 Genus Filosa Boettger, 1877
                 10 Genus Galeata Boettger, 1877
                 11 Genus Idyla Adams & Adams, 1855
                 12 Genus Macroptychia Boettger, 1877
                 13 Genus Odonteuxina Nordsieck, 1975
                 14 Genus Olympicola Hesse, 1916
                 15 Genus Roseniella Thiele, 1931
                 16 Genus Scrobifera Boettger, 1877
                 17 Genus Strigileuxina Nordsieck, 1975
                 18 Genus Strumosa Boettger, 1877