Common Atlantic Spider Crab

Libinia emarginata

Dead spider crab on the beach Assateague Island State Park

Slow moving and harmless, the spider crab scavenges for food below the surf. With its long spindly legs and beak like head it looks very sinister. It camouflages itself by using a mucus like substance that it produces to affix seaweed and debris to it carapace. It is most often seen as a corpse, washed up on the beach, although occasionally one may be pulled in live by a surf fisherman fishing with bloodworms.


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