I have seen a couple of strange looking fish at my lfs. He likes to once in a while bring in fish that even he has never had or seen in his 30 years of fish keeping. Of course I dont know the exact names of them but one fish in particular I remember. It is a catfish, orange and looks that a piece of wood, not very big, around 1". I'll have to go there again to get the name of it.
Rope fish are very strange too.