Kingdom Animalia Linnaeus, 1758 - animals
Phylum Platyhelminthes Gegenbaur, 1859 - flatworms
Class Turbellaria Ehrenberg, 1831 - planarians
see Subphylum Turbellaria Ehrenberg, 1831
Order Rhabdocoela Ehrenberg, 1831
see Infraclass Rhabdocoela Ehrenberg, 1831
Suborder Kalyptorhynchia Graff, 1905
see Order Kalyptorhynchia Graff, 1905
Genus Cystiplex Karling, 1964
Genus Gnathorhynchus Meixner, 1929
Genus Gyratrix Ehrenberg, 1831