In Aztec mythology, the ahuizotl is a semi-aquatic creature looking like a mix of monkey and dog provided with a hand at the tip of his long tail and waterproof hairs hard and pointy like spikes. He waited either underwater or near the water for someone to approach for drinking or bathing in order to catch him with his third hand and drag him into the depths to drown him ; the victims' souls directly went to the sides of the god Tlaloc, which made the ahuizotl a sort of forced ferryman. He then fed on the victim's body, particularly loving the teeth, the nails and the eyes

Ahuizotls © Aztec mythology
Drawing © me (he looks fancy because he's a character from one of my stories, it was the occasion to design him)