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 Platy-helminthes see Phylum Platyhelminthes Gegenbaur, 1859
           Class Turbellaria Ehrenberg, 1831 - planarians see Subphylum Turbellaria Ehrenberg, 1831
             Superorder Neoophora see Class Neoophora
               Order Neorhabdocoela see Order Rhabdocoela Ehrenberg, 1831
                 Suborder Kalyptorhyncha see Suborder Kalyptorhynchia Graff, 1905
                   Genus Gyratrix Ehrenberg, 1831
                     Gyratrix hermaphrodita see Gyratrix hermaphroditus Ehrenberg