Eyelash Viper
Bothriechis schlegelii
Water Moccasin
Agkistrodon piscivorus
Russell's Viper
Daboia russelii
Bamboo Pit Viper
Trimeresurus gramineus
Indian Saw-Scaled Viper
Echis carinatus
Saharan Horned Viper
Cerastes cerastes
Puff Adder
Bitis arietans
Fer-de-lance
Bothrops asper
Mojave Rattlesnake
Crotalus scutulatus
Common European Adder
Vipera berus
Mamushi
Gloydius blomhoffii
Nose-Horned Viper
Vipera ammodytes
Western Diamondback Rattlesnake
Crotalus atrox
Asp Viper
Vipera aspis
Prairie Rattlesnake
Crotalus viridis
Sidewinder
Crotalus cerastes
Pygmy Rattlesnake
Sistrurus miliarius
Gaboon Viper
Bitis gabonica
Copperhead
Agkistrodon contortrix
Black-Tailed Rattlesnake
Crotalus molossus
Western Rattlesnake
Crotalus oreganus
Timber Rattlesnake
Crotalus horridus
Eastern Diamondback Rattlesnake
Crotalus adamanteus
Massasauga
Sistrurus catenatus
Southern american Bushmaster
Lachesis muta
Stejneger's Pit Viper
Trimeresurus stejnegeri
Spiny Bush Viper
Atheris hispida
White-Lipped Pit Viper
Trimeresurus albolabris
Butterfly Viper
Bitis nasicornis
Common Lancehead
Bothrops atrox
Habu
Protobothrops flavoviridis
South American Rattlesnake
Crotalus durissus
Jararaca
Bothrops jararaca