Phylum Arthropoda Siebold, 1848 - arthropods
Subphylum Crustacea Brünnich, 1772 - crustaceans
see Superclass Crustacea Pennant, 1777
Class Malacostraca Latreille, 1802
Subclass Eumalacostraca Grobben, 1892
Superorder Peracarida Calman, 1904
Order Isopoda Latreille, 1817 - isopods
Suborder Phreatoicidea Stebbing, 1893
Family Nichollsiidae Tiwari, 1955
see Family Hypsimetopodidae Nicholls, 1943