Calappa hepatica

Taxobox | name = "Calappa hepatica"
regnum = Animalia
phylum = Arthropoda
subphylum = Crustacea
classis = Malacostraca
ordo = Decapoda
infraordo = Brachyura
familia = Calappidae
genus = "Calappa"
species = "C. hepatica"
binomial = "Calappa hepatica"
binomial_authority = Linnaeus, 1758

"Calappa hepatica" is a common benthic crab of tropical and subtropical parts of the Indian and Pacific Oceans and the Red Sea. It is also known as the "box crab", "shame-faced crab" or the "tortoise crab", the last two names referring to the animal's appearance, with its two chelipeds (claw-bearing limbs) being used to shield the "face", giving the crab almost impregnable armour. The carapace is covered in small lumps, and is generally white to golden in colour.