hitch hiking crab

So, I am doing the Kona black water dive.. a.k.a. Pelagic magic with Jack’s Dive Locker. As I look at a few of the photo’s of the dive, I find a hitch hiking crab.

Any chance of an identification on it?

Hi Dave -- That crab looks like it's newly settled out of the megalopa stage which means it doesn't have the adult shape yet and can't be id'ed, sorry. A lot of different species are accidental jelly riders. For some, like the US west coast Cancer gracilis it's a regular way of life. They feed on amphipods which prey on the jellies or steal part of the jellies' food.