Decorator Crab - Welsh style

I rarely post here but thought that this shot might be of interest. In the UK we'd often call these Scorpion Spider Crabs but as you can see they actually cover themselves with sponges. This one is perhaps the most effectively covered one that I have seen to date. Taken in something of a current (!) at 22m down in Tremadog Bay, North Wales.

wow, he really blends in well

And whilst on the subject. I've seen them hiding alongside anemones before but not right inside like this.