Nemathelminthes Gegenbaur, 1859 see Phylum Nematoda Gegenbaur, 1859 Class Nematoda Gegenbaur, 1859 Subclass Torquentia Order Chromadorida Chitwood, 1933 Suborder Desmodorina De Coninck, 1965 53 Family Desmodoridae Filipjev, 1922 54 Family Microlaimidae Micoletzky, 1922