any mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton

largest subclass of Crustacea including most of the well-known marine, freshwater, and terrestrial crustaceans: crabs; lobsters; shrimps; sow bugs; beach flies

shrimp-like planktonic crustaceans; major source of food for e.g. baleen whales

shrimp-like crustaceans whose females carry eggs and young in a pouch between the legs

any of various small terrestrial or aquatic crustaceans with seven pairs of legs adapted for crawling

a kind of malacostracan crustacean

largest subclass of Crustacea including most of the well-known marine, freshwater, and terrestrial crustaceans: crabs; lobsters; shrimps; sow bugs; beach flies