A hog nosed snake is just that. As far as I know, that's always been the official name. It's a non-poisonous snake with a nose that, from the side, resembles a sled. Like the opossum, they're known for 'playing dead'. They turn on their backs to convince you they're harmless. If you turn one right side up, he;ll turn back over.

As for hercules; there's a demi-god, a missle, and a helicopter. I don't think that's it, though.