hermit crab, clibanarius aequabilis, with a shell on a rock

clibanarius aequabilis zoology animal invertebrate crab shell hermit nature earth close science hobby environment seashell rock salt water pet eye mollusc colours exotic rare leg beauty aquarium biologist colourful ecology crustacean craw curiosity concha ocean wild aquatic closeup wildlife macro biology natural gastropod marine intertidal flat tidal ecosystem