Ahuizotl

The Ahuizotl is a creature from Aztec myth. The name means “water dog” or “water possum.” It is the size of a dog, has slippery black skin, a human hand at the end of its tail, small pointed ears, and a monkey face. It stays just under the water and waves its hand to lure people close to the water. It grabs those who get too close with its hand tail and drowns them. It then eats the eyes, teeth, and nails of its victims.

Citations:

Bane, Theresa. Encyclopedia of Beasts and Monsters in Myth, Legend and Folklore. United States, McFarland, Incorporated, Publishers, 2016.