| Waglers Pit Viper |
Squamata |
Viperidae |
Tropidolaemus |
wagleri |
Kinabatangan River, Borneo |
| Eyelash Viper |
Squamata |
Viperidae |
Bothriechis |
schlegelii |
Tortuguero N.P. Costa Rica |
| Fer-de-lance |
Squamata |
Viperidae |
Bothrops |
asper |
Tortuguero N.P. Costa Rica |
| Hog-nosed Pit Viper |
Squamata |
Viperidae |
Porthidium |
ophryomegas |
Osa Peninsula, Costa Rica |
| Common European Adder |
Squamata |
Viperidae |
Vipera |
berus |
Pulborough, United Kingdom |
| Brazilian Lancehead |
Squamata |
Viperidae |
Bothrops |
mattogrossensis |
Mato Grosso State, Pantanal, Brazil |
| Sri Lankan Pit Viper |
Squamata |
Viperidae |
Trimeresurus |
trigonocephalus |
Sinharaja Forest Reserve, Sri Lanka |