Boa-like Slug Snake

The blunthead slug snake, or blunt-headed slug-eating snake, is the only species in its genus, in the family Pareidae. It is a small, non-venomous snake found in southern Thailand, Malaysia, Indonesia, Brunei and the Philippines. It eats mainly snails, especially operculate species, and its jaws are more mobile than those of most other vertebrates (Wikipedia, general species account).