Bamboo Pit Viper
Trimeresurus gramineus
Eyelash Viper
Bothriechis schlegelii
Water Moccasin
Agkistrodon piscivorus
Russell's Viper
Daboia russelii
Common European Adder
Vipera berus
Eastern Diamondback Rattlesnake
Crotalus adamanteus
Timber Rattlesnake
Crotalus horridus
Fer-de-lance
Bothrops asper
Copperhead
Agkistrodon contortrix
Saharan Horned Viper
Cerastes cerastes
Western Diamondback Rattlesnake
Crotalus atrox
Gaboon Viper
Bitis gabonica
Prairie Rattlesnake
Crotalus viridis
Massasauga
Sistrurus catenatus
Puff Adder
Bitis arietans
Sidewinder
Crotalus cerastes
Mojave Rattlesnake
Crotalus scutulatus
Nose-Horned Viper
Vipera ammodytes
Indian Saw-Scaled Viper
Echis carinatus
Pygmy Rattlesnake
Sistrurus miliarius
Black-Tailed Rattlesnake
Crotalus molossus