(n.pl.) A subclass of Crustacea, including Arthrostraca and Thoracostraca or all those higher than the Entomostraca.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). malacostraca. Retrieved September 22, 2026, from http://smartdefine.org/malacostraca/definitions/2029969 |
| Chicago | Webster's. 2011. "malacostraca" http://smartdefine.org/malacostraca/definitions/2029969 (accessed September 22, 2026). |
| Harvard | Webster's 2011, malacostraca, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/malacostraca/definitions/2029969>. |
| MLA | Webster's. "malacostraca" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/malacostraca/definitions/2029969> |