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
                   01 Subfamily Entophilinae
                   02 Subfamily Argeiinae Markham, 1977
                   03 Subfamily Bopyrinae Rafinesque, 1815
                   04 Subfamily Bopyrophryxinae
                   05 Subfamily Ioninae
                   06 Subfamily Pseudioninae Codreanu, 1967
                   07 Subfamily Orbioninae Codreanu, 1967
                   08 Subfamily Phyllodurinae Markham, 1977
                   09 Subfamily Athelginae Codreanu & Codreanu, 1956
                   10 Subfamily Hemiarthrinae Markham, 1972