Serpentes see Suborder Serpentes Linnaeus, 1758 Alethinophidia Nopcsa, 1923 see Infraorder Alethinophidia Nopcsa, 1923 Caenophidia Hoffstetter, 1939 Colubroidea Oppel, 1811 Family Xenodermatidae Gray, 1849 see Family Xenodermidae Gray, 1849