swimming crab living on a sea cucumber

luzon philippines portrait asia brachyura china chinese close closeup crab crabs crustacea crustacean crustaceans decapoda decapods dive diving fauna format galera geography harlequin horizontal indopacific invertebrate island lissocarcinus macro marine mindoro nature ocean orbicularis pacific philippine portunidae portunoidea puerto sea sealife shoreline south southeast swimming underwater underwaterphoto underwaterphotography underwaterpicture underwaterworld wildlife living cucumber reef