Malacostraca
(redirected from Malacostracan crustaceans)Also found in: Dictionary, Thesaurus, Encyclopedia.
Malacostraca
the crustacean group containing crabs, lobsters, shrimps, crayfish, etc. See also CARIDOID FACIES.Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005