This fellow is found in Latin America and there are several species of Xenodon. In particular, this species (werneri) mimics the snake in the second photo, which is a Bothriopsis b. bilineatus (tree viper). An interesting aspect is that the Xenodon is a terrestrial species mimicking an arboreal species. The Xenodon also is a savage consumer of toads, including the poisonous buffo toad, and it displays much like a North American hognose it that it flares its head, puffs it body, etc.
Dan




