Kingdom Animalia Linnaeus, 1758 - animals Phylum Nemertea Schultze, 1851 - ribbon worms Class Anopla see Phylum Nemertea Schultze, 1851 Order Palaeonemertea Hubrecht, 1879 see Phylum Nemertea Schultze, 1851 Genus Cephalothrix Oersted, 1843