Marbled Stone Crab

Found sheltering, during the day in crevices, and under stones, out at night foraging for food, over rocky outcrops, and along seashores, of coral reefs.
They feed nocturnally on molluscs.

Brachyura crabs are considered true crabs, they have a short abdomen, 4 walking legs and a pair of clawed arms at the front.
Many thousands of species live worldwide in sea water, fresh water and on land.