Neck Crab

This little guy is a neck crab, part of the decorator crab family. These guy cover themselves with debris, algae and smaller creatures to camouflage themselves.

They are usually about 1-2 inches and this particular one was close to 2 inches which made it relatively easy to photograph. It is usually fairly hard to find them because they are small and well hidden but they can be spotted when they are clambering on soft corals. They are hard to get good pictures of because the soft coral is usually swaying in the current and the crabs themselves are pretty small, I had to take more than a few pictures to get this one (which was taken on a night dive).