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The snakelocks anemone (Anemonia viridis) is a sea anemone found in the eastern Atlantic Ocean and the Mediterranean Sea. The latter population is however sometimes considered a separate species, the Mediterranean snakelocks anemone (Anemonia sulcata). Several species of small animals regularly live in a symbiotic or commensal relationship with the snakelocks anemone, gaining protection from predators by residing among the venomous tentacles. These include the incognito goby, the shrimp Periclimenes aegylios and the Leach's spider crab.Photograph credit: Diego Delso