I've never seen anything like this thing I just found, maybe someone can help me. I don't have a picture of it, I hope I can give an adaquate description. Its color was a violet-purple, its body was an oval shape, and it has several? pairs of crab-like legs protruding from underneath. Although the body was an oval shape and seemed solid, it actually had a translucent "skirt" around the whole thing that seemed thin like a jellyfish. When I first looked in, I thought it might be one of the mushroom polyps that had turned color and taken a turn for the worse but then I noticed the legs. I can't seem to think of the proper way to describe it-it was that strange. If anyone has any ideas, pictures, etc. that can help it would be greatly appreciated.