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Long spines which can be erected all over the body. Upper body gray, lower body white. Large eyes, high on the head.
During the day mostly hides in caves or holes in the reef. Can be found between 9 and 36 metres depth, mostly solitary. Feeds at night on sea urchins & crabs. In Eastern Pacific from southern California to Chile.
Shy but curious, if harassed may bite divers. When threatened will inflate by drawing in water, turning into a big ball of spines
Spotted on Feb 26, 2011
Submitted on Jan 14, 2012