Vipers (Viperidae)

Lower Classification

One of the larger snake families, there are 4 subfamilies of vipers that includes over 200 venomous snake species classified into the following genera:

Azemiopinae (Monotypic Subfamily: Azemiops )

Causinae (Night adders)

• Causus

Crotalinae (Pit vipers)

• 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)
• 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)

Viperinae (True/pitless vipers)

• Bush vipers (Atheris)
• Puff adders (Bitis)
• Horned vipers (Cerastes)
• Day adders (Daboia)
• Saw-scaled vipers (Echis)
• Eristicophis (Monotypic species: McMahon’s viper)
• Large Palearctic vipers (Macrovipera)
• Montatheris (Monotypic species: Kenya mountain viper)
• Upland vipers (Montivipera)
• Proatheris (Monotypic species: Lowland viper)
• False horned vipers (Pseudocerastes)
• Palearctic vipers (Vipera)