Phylum Arthropoda Siebold, 1848 - arthropods
   Superclass Crustacea Pennant, 1777 - crustaceans see [unranked] Crustaceomorpha Chernyshev, 1960
     Class Malacostraca Latreille, 1802
       Subclass Eumalacostraca Grobben, 1892
         Superorder Peracarida Calman, 1904
           Order Isopoda Latreille, 1817 - isopods
             Suborder Flabellifera Sars, 1882
               Family Sphaeromatidae Latreille, 1825
                 Subfamily Sphaeromatinae Latreille, 1825
                   1 Genus Cymodoce Leach, 1814
                   2 Genus Exosphaeroma Stebbing, 1900
                   3 Genus Harrieta Kensley, 1987
                   4 Genus Sphaeroma Latreille, 1802