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 Epicaridea Latreille, 1831
               Superfamily Bopyroidea Rafinesque, 1815
                 Family Bopyridae Rafinesque, 1815
                   Subfamily Hemiarthrinae Markham, 1972
                     Genus [Hemiarthrus] Giard & Bonnier, 1887