Kingdom Animalia Linnaeus, 1758 - animals Phylum Nematoda Gegenbaur, 1859 - round worms Class Enoplea Inglis, 1983 1 Subclass Enoplia Pearse, 1942 2 Subclass Oncholaimia Hodda, 2007 [monotypic] 3 Subclass Triplonchia Hodda, 2007 [monotypic]