In the official lore of Dungeons & Dragons, the wildly-popular-but-recently-maligned by greed table top RPG, there is a species of creature known as the kuo-toa. The kuo-toa are, for lack of a better word, fishmen. In stark contrast to any Ariel-esque merpeople you might be imagining, the kuo-toa look like this.
These bulging-eyed creepazoids typically inhabit the underworlds of coastal cities, or even deeper below ground, engaging in generally debaucherous behavior and smelling quite unpleasant. Based on the part-man, part-piscine creations of H.