| Agkistrodon bilineatus |
Crotalus atrox |
Montivipera (Vipera) xanthina |
| Agkistrodon contortrix contortrix |
Crotalus atrox (albino) |
Ovophis okinavensis |
| Agkistrodon contortrix mokasen |
Crotalus culminatus |
Protobothrops (Trimeresurus) flavoviridis |
| Agkistrodon contortrix phaeogaster |
Crotalus durissus durissus |
Protobothrops (Trimeresurus) jerdonii jerdonii |
| Agkistrodon contortrix pictigaster |
Crotalus durissus terrificus |
Protobothrops (Trimeresurus) mucrosquamata |
| Agkistrodon piscivorus leucostoma |
Crotalus durissus vegrandis |
Sistrurus catenatus tergeminus |
| Agkistrodon piscivorus piscivorus |
Crotalus enyo furvus |
Sistrurus miliarius barbouri |
| Atheris chlorechis |
Crotalus horridus |
Trimeresurus albolabris |
| Atheris squamigera |
Crotalus lepidus lepidus |
Trimeresurus fucatus |
| Bitis arietans |
Crotalus molossus molossus |
Trimeresurus gumprechti |
| Bitis gabonica rhinoceros |
Crotalus oreganus |
Trimeresurus hageni |
| Bitis nasicornis |
Crotalus oreganus helleri |
Trimeresurus macrops |
| Bothriechis schlegelii |
Crotalus ruber |
Trimeresurus popeorum |
| Bothrops alternatus |
Crotalus scutulatus scutatus |
Trimeresurus purpureomaculatus |
| Bothrops atrox |
Crotalus unicolor |
Trimeresurus stejnegeri |
| Bothrops caribbaeus |
Crotalus viridis viridis |
Trimeresurus trigonocephalus |
| Bothrops moojeni |
Deinagkistrodon acutus |
Trimeresurus venustus |
| Bothrops neuwiedi |
Echis carinatus sochureki |
Trimeresurus vogeli |
| Calloselasma rhodostoma |
Echis coloratus |
Tropidolaemus wagleri |
| Crotalus adamanteus |
Echis pyramidum |
Vipera ammodytes ammodytes |
