Kingdom [Animalia] Linnaeus, 1758 - animals
   Subkingdom Metazoa Haeckel, 1874 see Kingdom Animalia Linnaeus, 1758
     Division Eumetazoa Butschli, 1910 see Subkingdom Eumetazoa Butschli, 1910
       Subdivision Bilateralia
         Phylum Asc-helminthes
           Class Nematoda Gegenbaur, 1859
             Subclass Secernentea
               Order Rhabditida Chitwood, 1933
                 Genus Cephalobus Bastian, 1865
                 Genus Diplogaster Schultze, 1857
                 Genus Neoaplectana Steiner, 1929 see Genus Steinernema Travassos, 1927
                 Genus Rhabditis Dujardin, 1845
                 Genus Strongyloides Grassi, 1879