Family Cylindrophiidae Fitzinger 1843 (Asian pipe snake)
Parent taxon: Alethinophidia according to N. Vidal and S. B. Hedges 2002
Sister taxa: Acrochordoidea, Aniliidae, Anilioidea, Cerberophis, Henophidia, Macrostomata, Nigerophiidae, Simoliopheoidea, Tuscahomaophis, Viperidae
Subtaxa: none
Ecology: