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 Dynameninae Bowman, 1981
                   1 Genus Cerceis H. Milne-Edwards, 1840
                   2 Genus Discerceis Richardson, 1905
                   3 Genus Dynamenella Hansen, 1905
                   4 Genus Geocerceis Menzies & Glynn, 1968
                   5 Genus Ischyromene Racovitza, 1908
                   6 Genus Paracerceis Hansen, 1905
                   7 Genus Paradella Harrison & Holdich, 1982