Malacostracan crustaceans软甲纲
N(名词) any crustacean of the subclass or group Malacostraca, including lobsters, crabs, woodlice, sand hoppers, and opossum shrimps 软甲亚纲
ADJ(形容词) of, relating to, or belonging to the Malacostraca 与软甲亚纲有关的