- crustaceous, crustacean - of or belonging to the class Crustacea
- crustacean - any mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton
--1 is a kind of arthropod
--1 is a member of Crustacea, class Crustacea
--1 has parts: green gland; claw, chela, nipper, pincer
--1 has particulars: