The Enemies of Eternus (Lavellan)

Lavellan - A Lavellan is a rodent the size of a large dog, that gives off a very noxious poison. It lives in deep pools in rivers. Its poisonous abilities are legendary, and it is said to be able to injure cattle over a hundred feet away. Some sources claim that it is mostly to be found in Caithness. Locals there preserved the skin, and, as a cure for their sick beasts, gave them the water in which it had been dipped.