Phylum Arthropoda Siebold, 1848 - arthropods Count: - Superclass Crustacea Pennant, 1777 - crustaceans see [unranked] Crustaceomorpha Chernyshev, 1960 Count: - Class Malacostraca Latreille, 1802 Count: - Subclass Eumalacostraca Grobben, 1892 Count: -