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 Orthurethra Pilsbry, 1900
           Superfamily Achatinelloidea Gulick, 1873 [monotypic]
             Family Achatinellidae Gulick, 1873
               1 Subfamily Pitysinae Cooke & Kondo, 1961 see Tribe Elasmatinini Iredale, 1937
               2 Subfamily Lamellideinae Cooke & Kondo, 1961 see Tribe Lamellideini Cooke & Kondo, 1961
               3 Subfamily Tornatellidinae Cooke & Kondo, 1961
               4 Subfamily Achatinellinae Gulick, 1873
               5 Subfamily Tekoulininae Solem, 1972 [monotypic]