malacostracan crustacean

Thesaurus

Noun

1.

malacostracan crustacean - a major subclass of crustaceans crustacean - any mainly aquatic arthropod usually having a segmented body and chitinous exoskeleton Malacostraca, subclass Malacostraca - largest subclass of Crustacea including most of the well-known marine, freshwater, and terrestrial crustaceans: crabs; lobsters; shrimps; sow bugs; beach flies krill - shrimp-like planktonic crustaceans; major source of food for e.g. baleen whales opossum shrimp - shrimp-like crustaceans whose females carry eggs and young in a pouch between the legs isopod - any of various small terrestrial or aquatic crustaceans with seven pairs of legs adapted for crawling amphipod - a kind of malacostracan crustacean