Another mythical otter-like creature: The Ahuizotl
>It has short fur, small, pointy ears, a smooth body and black tail, at the end of which sprouts a hand much like a person’s. This animal inhabits the depths of watery springs and if anyone reaches the edge of its domain, he is dragged by the tail’s hand and taken down to its depths... Book XI, Florentine Codex.
The fur is said to be waterproof, and whenever the Ahuizotl came out of the water and shook itself, it would clump up like spikes. The creature is said to be similar to a small dog, with small pointed ears, and a long tail. At the end of this tail is a hand, very much like a person’s. The Ahuizotl is said to have a peculiar taste for a person’s eyes, teeth, and nails, hence the corpses of its victims are found without these body parts.
Whilst some have dismissed the Ahuizotl as a purely mythological creature, others have attempted to provide an explanation for it.
Another possible candidate is the otter, which is also an aquatic animal. It has been claimed that this animal would attack humans, especially when its nest is threatened. Additionally, it is a carnivorous animal that would scavenge meat from drowned bodies, especially the softer parts, such as the eyes, gums, and fingertips. Unfortunately, the otter has round, rather than pointed ears, and is referred to as Aizcuintli in the Florentine Codex . It is perhaps more likely that the Ahuizotl was a purely mythical animal, or one that has not yet been identified.