has hairs all over back. there are two ddistinct rows of longer hair, though, on each side of its back. it IS definitely some kind of bristle worm, as are coco worms, feather dusters, peanut worms, eunicid worms, etc., but not the kind of bristle worm that most people refer to when they say that they have bristle worms. This one is flat, kinda like a leech, with a white body, and brown hair on its back. ventral side hairless. the 2 rows of longer hair on each side of its back are darker.