Chitinous or calcified outer integument of crustaceans [McLaughlin, 1980].
Chitinous or calcined outer integument of body (pleurites, sternites, tergites) and appendages. See: endoskeleton [Stachowitsch, 1992].
Entire horny (in part chitinous) more or less calcified outer covering of crustacean body and its appendages [Moore and McCormick, 1969].
Outer covering of arthropods; "shell" [Hobbs and Jass, 1988].
The skeleton covering the outside of the body [Ingle, 1983].
Crustacea glossary. Natural History Museum of Los Angeles County. 2011.