Bothriechis schlegelii Bothiopsis bilineata bilineata Bothriopsis medusa Bothrops asper Bothrops atrox Bothrops isabelae Bothrops venezuelensis Crotalus durissus cumanensis Crotalus durissus ruruima Crotalus durissus maricelae Crotalus durissus pifanorum Crotalus durissus vegrandis Lachesis muta Porthidium lansbergii houtmanni Porthidium lansbergii rozei