It *sounds* like Rover is right, but I don't know. They don't move, that's why I think it's algae, but with a skeleton? Weird. Well, then again, what's not weird in the tank?
I don't have a digital camera, so I can't post pics. Although, even if I did, I don't know if I would because the algae situation is a bit embarassing right now. At least it looks like it's dying off now. But the cyano (I think) is coming back.