malacostraca
Mal`a*cos"tra*ca, n. pl. Etym: [NL., from Gr. (Zoöl.) Defn: A subclass of Crustacea, including Arthrostraca and Thoracostraca, or all those higher than the Entomostraca.
Mal`a*cos"tra*ca, n. pl. Etym: [NL., from Gr. (Zoöl.) Defn: A subclass of Crustacea, including Arthrostraca and Thoracostraca, or all those higher than the Entomostraca.