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 Helixarionoidea Bourguignat, 1883, orth. inval.
             Family Euconulidae Baker, 1928
               Genus Habroconus Fischer & Crosse, 1872
                 1 Subgenus Cocosconus Baker, 1941
                 2 Subgenus Coccoslens Vaught, 1989, orth. inval. see Subgenus Cocoslens Baker, 1941
                 3 Subgenus Ernstia Jousseaume, 1889
                 4 Subgenus Pseudoguppya Baker, 1925