sand crab

sand crab

noun
any of several crabs that live on sandy beaches, as the ghost crab or mole crab.

Origin:
1835–45

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Collins
World English Dictionary
sand crab
 
n
(Austral) another name for blue swimmer

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Encyclopedia Britannica
Encyclopedia

sand 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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