Description

Also known as Convex Crab, Convex Reef Crab, Coral Crab, Red Coral Crab, Reef Crab, Round Crab, True Crab, Variable Coral Crab, Variable Reef 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.
Length - 25cm
Depth - 0-95m
Widespread Indo-Pacific

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. Ref: https://en.wikipedia.org/wiki/Carpilius_convexus