Nemathelminthes Gegenbaur, 1859 see Phylum Nematoda Gegenbaur, 1859 Class Nematoda Gegenbaur, 1859 Subclass Torquentia Order Monhysterida Filipjev, 1929 Suborder Linhomoeina Andrassy, 1974 Family Linhomoeidae Filipjev, 1922