Kingdom Animalia Linnaeus, 1758 - animals Phylum Nematoda Gegenbaur, 1859 - round worms Class Chromadorea Inglis, 1983 Subclass Plectia Hodda, 2007 Superorder Rhabditica Hodda, 2007 Order Rhabditida Chitwood, 1933 Suborder Agfina Hodda, 2007 [monotypic] Superfamily Agfoidea Dougherty, 1955 [monotypic] Family Agfidae Dougherty, 1955