Serpentes see Suborder Serpentes Linnaeus, 1758 Alethinophidia Nopcsa, 1923 see Infraorder Alethinophidia Nopcsa, 1923 Henophidia Hoffstetter, 1939 [paraphyletic] see Parvorder Henophidia Hoffstetter, 1939 Family Cylindrophiidae Fitzinger, 1843 [paraphyletic] - Asian pipe snakes Anomochilus leonardi Smith, 1940