- 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
--1 is a kind of class, category, family
--1 is a member of Crustacea, class Crustacea
--1 has members:malacostracan crustacean; Decapoda, order Decapoda; Euphausiacea, order Euphausiacea; Mysidacea, order Mysidacea; Isopoda, order Isopoda; Amphipoda, order Amphipoda