There are, as far as I know, two types of squat lobsters that reside in these crinoid fauna. The first is the one you see here with the black and white striped pattern while the other one is mostly dark with barely visible white stripes. This was taken in Anilao, Batangas in a dive site called Secret Bay.

Speaking of lobsters, there is a rather interesting book titled The Secret Life of Lobsters by Trevor Corson. Radiolab has done a dramatization of one of the segments and I was listening to this on the drive back to the city after this dive.