Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Phylum Chordata Bateson, 1885 - chordates
           Subphylum Vertebrata Cuvier, 1812 - vertebrates
             Class Reptilia Linnaeus, 1758 - reptiles
               Subclass Lepidosauria Duméril & Bibron, 1839
                 Order Squamata Oppel, 1811
                   Suborder Serpentes Linnaeus, 1758 - snakes
                     Infraorder Henophidia Hoffstetter, 1939 see Superfamily Henophidia Hoffstetter, 1939
                       1 Family Aniliidae Stejneger, 1907 - cylinder snakes
                       2 Family Uropeltidae Müller, 1831 - shield-tail snakes
                       3 Family Xenopeltidae Bonaparte, 1845 - sunbeam snakes
                       4 Family Acrochordidae Bonaparte, 1831 - wart snakes
                       5 Family Boidae Gray, 1825 - pythons and boas