Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Divasibranchia Minichev & Starobogatov, 1975
       Order Basommatophora Keferstein, 1865 see Suborder Basommatophora Keferstein, in Bronn, 1864
         Superfamily Planorbioidea Vaught, 1989, orth. inval. see Superfamily Planorboidea Rafinesque, 1815
           Family Planorbidae Rafinesque, 1815 - planorbids
             Subfamily Planorbinae Rafinesque, 1815
               Tribe Biomphalarieae Zilch, 1959, orth. inval. see Tribe Biomphalariini Watson, 1954
                 Genus Armigerus Clessin, 1884
                   1 Subgenus Lateorbis Baker, 1945
                   2 Subgenus Tropicorbis Brown & Pilsbry, 1914