Eumalacostraca is a subclass of typical crustaceans. There are 37033 species of Eumalacostraca, in 5546 genera and 608 families. It includes groups like Peracarids.
Definition: Hard framework, internal or external, which supports and protects softer parts of plant, animal or unicellular organism, and to which muscles usually attach in animals, includes skeletons (derived from Lawrence, 2005).
