En snabb sökning på nätet gav detta "Calico Crab - Hepatus epheliticus, its brightly colored body blends with its surroundings. Often this crab stays buried beneath the sand, with only its eyes sticking up. However, when food is placed nearby, it pops out and shreds it with its sharp pinchers. It scavenges on worms, small clams, fish, etc. and is a favorite food of ridley sea turtles."