Click below for pages on the malacostracan crustaceans:
Malacostraca
Eumalacostraca
Hoplocarida: mantis shrimps
Decapoda: shrimps, lobsters and crabs
Syncarida
Euphausiacea: krill
Thermosbaenacea
Mysidacea: opossum shrimps
Isopoda: isopods
Cumacea
Tanaidacea
Amphipoda: amphipods