Pit Vipers (Crotalinae)
Lower Classification
- Moccasins (Agkistrodon)
- Atropoides (Monotypic species: Picado’s jumping pitviper)
- Palm-pitvipers (Bothriechis)
- Toadheaded pit vipers (Bothrocophias)
- Lanceheads (Bothrops)
- Calloselasma (Monotypic species: Malayan pitviper)
- Montane pitvipers (Cerrophidion)
- Pit viper (Craspedocephalus)
- Rattlesnakes (Crotalus)
- Deinagkistrodon (Monotypic species: Hundred-pace pitviper)
- Garthius (Monotypic species: Mount Kinabalu pit viper)
- Asian moccasins (Gloydius)
- Hump-nosed pit vipers (Hypnale)
- Bushmasters (Lachesis)
- Jumping pitvipers (Metlapilcoatlus)
- Mexican pit vipers (Mixcoatlus)
- Mexican horned pitvipers (Ophryacus)
- Mountain pit vipers (Ovophis)
- Hognose pit vipers (Porthidium)
- Pit vipers (Protobothrops)
- Ground rattlesnakes (Sistrurus)
- Asian lanceheads (Trimeresurus)
- Temple vipers (Tropidolaemus)