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Libinia emarginata, or common spider crab, is native to the Atlantic coast of North America. It lives at depths of up to 160 ft (49 m), with exceptional records of up to 400 ft (120 m). Adults are sluggish and not aggressive, and younger crabs are frequently covered with sponges and hydroids. L. emarginata preferentially walks forwards, rather than sideways, although they are also capable of sidelong movement. (X)





















