ghost crab

noun
a whitish crab, Ocypode albicans, of sandy beaches from the eastern coast of the U.S. to Brazil.

Origin:
1905–10, Americanism

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Encyclopedia Britannica
Encyclopedia

ghost crab

any of approximately 20 species of shore crabs (order Decapoda of the class Crustacea). O. quadratus, the beach crabs noted for their running speed, occur on dry sand above the high-tide mark on the western Atlantic coast from New Jersey to Brazil. The crab, sandy or whitish in colour, has claws of unequal size and rather hairy legs. The back, or carapace, is nearly rectangular in shape and about 3.75-5 cm (about 1.5-2 inches) across. Long stalks support the eyes. The crab lives in burrows sometimes 1 m (3.3 feet) deep. Sand fleas are an important part of the diet.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Example sentences
Although of marine origin, the adult ghost crab lives in burrows along the upper beach and well back into the dunes.
Many volunteers use ghost crab traps to reduce ghost crab predation.
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