Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Nematoda Gegenbaur, 1859 - round worms
     Class Chromadorea Inglis, 1983
       Subclass Chromadoria Adamson, 1987 [monotypic]
         Superorder Chromadorica Hodda, 2007
           Order Desmoscolecida Filipjev, 1929 [monotypic]
             Suborder Desmoscolecina Chitwood, 1933 [monotypic]
               Superfamily Desmoscolecoidea Shipley, 1896
                 1 Family Cyartonematidae Tchesunov, 1990
                 2 Family Desmoscolecidae Shipley, 1896
                 3 Family Meyliidae De Coninck, 1965