a black thin-shelled rock crab enjoying waikiki beach wall

2023 thinshelled rock crab crabapple hawaii honolulu sea life waikiki wildlife shy black thin-shelled breakwater beach scampers oahu marine animal ocean pacific nature ecology environment beachwall grapsus tenuicrustatus natal sally-light-foot decapod crustacean aama scavenger shell arthropoda tourism tourist food edible thin thin-she thin-shed enjoying wall searching eating scavenger