Common Box Crab
Colour varies, pale olive to olive-grey or olive-yellow, with flecking but not strong markings. Legs hidden under expanded flange at back of shell. To about 50 mm across.
On rocky and coral reefs, on sand or muddy-sand bottoms, from shallow subtidal zone to 50 m. Tropical and subtropical Australia; Indo-Pacific from Red Sea to Clipperton Is., east Pacific.
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