Henophidia

Henophidia is a former parvorder of the suborder Serpentes (snakes) that contains boas, pythons and numerous other less-well-known snakes.

Snakes once considered to belong to superfamily Henophidia include two families now considered Amerophidia (Aniliidae – red pipe snakes, and Tropidophiidae – dwarf "boas" or thunder snakes), three families now considered Uropeltoidea (Cylindrophiidae – Asian pipe snakes, Anomochilidae – dwarf pipe snakes, and Uropeltidae – shield-tailed snakes and short-tailed snakes), three families now considered Pythonoidea (Pythonidae – pythons, Loxocemidae – Mexican burrowing snake, and Xenopeltidae – sunbeam snakes), at least one family now considered Booidea (Boidae – boas [including sand boas and many other lineages often called boas, mostly now considered subfamilies of Boidae]), and Bolyeriidae – Round Island splitjaw snakes.