Also known as Camposcia Decorator Crab, Decoration Crab, Decorator Crab, Decorator Spider Crab, Retusa Decorator Crab, Retusa Spider Crab, Rubbish Crab, Seaweed Decorator Crab, Spider Crab, Spider Decorator Crab, Trash Crab, Tropical Decorator Crab, True Crab, Velcro Crab.
Found covered in rubbish, seaweed, shells, sponges, etc. These are attached by hooks to its shell, to act as camouflage against predators, making them hard to spot when walking over rubble, sand, and seagrass beds, of coral and rocky reefs.
They feed nocturnally on invertebrates.
Length - 3cm
Depth - 0-220m
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/Camposcia_retusa