Rhabditida

Rhabditida is an order of free-living, zooparasitic, and phytoparasitic microbivorous nematodes living in soil.

The Cephalobidae, Panagrolaimidae, Steinernematidae, and Strongyloididae seem to be closer to the Tylenchia, regardless of whether these are merged with the Rhabditia or not.

Families
Rhabditida
 * Myolaimina
 * Incertae sedis
 * Myolaimoidea
 * Myolaimidae
 * Rhabditina
 * Bunonematomorpha
 * Bunonematoidea
 * Bunonematidae
 * Diplogasteromorpha
 * Cylindrocorporoidea
 * Cylindrocorporidae
 * Diplogasteroidea
 * Cephalobiidae
 * Diplogasteridae
 * Diplogasteroididae
 * Rhabditomorpha
 * Mesorhabditoidea
 * Peloderidae
 * Rhabditoidea
 * Rhabditidae
 * Spirurina
 * Ascaridomorpha
 * Ascaridoidea
 * Acanthocheilidae
 * Anisakidae
 * Ascarididae
 * Heterocheilidae
 * Raphidascarididae
 * Cosmocercoidea
 * Atractidae
 * Kathlaniidae
 * Seuratoidea
 * Cucullanidae
 * Quimperiidae
 * Gnathostomatomorpha
 * Gnathostomatoidea
 * Gnathostomatidae
 * Oxyuridomorpha
 * Oxyuroidea
 * Pharygnodonidae
 * Thelastomatoidea
 * Thelastomatidae
 * Spiruromorpha
 * Acuarioidea
 * Acuariidae
 * Camallanoidea
 * Camallanidae
 * Filarioidea
 * Onchocercidae
 * Habronematoidea
 * Cystidicolidae
 * Tetrameridae
 * Physalopteroidea
 * Physalopteridae
 * Thelazioidea
 * Rhabdochonidae
 * Tylenchina
 * Cephalobomorpha
 * Cephaloboidea
 * Cephalobidae
 * Drilonematomorpha
 * Drilonematoidea
 * Drilonematidae
 * Homungellidae
 * Ungellidae
 * Panagrolaimomorpha
 * Panagrolaimoidea
 * Panagrolaimidae
 * Strongyloidoidea
 * Alloionematidae
 * Tylenchomorpha
 * Aphelenchoidea
 * Aphelenchidae
 * Aphelenchoididae
 * Criconematoidea
 * Criconematidae
 * Hemicycliophoridae
 * Sphaerularioidea
 * Anguinidae
 * Neotylenchidae
 * Tylenchoidea
 * Belonolaimidae
 * Dolichodoridae
 * Hoplolaimidae
 * Incertae sedis
 * Deladenus Thorne, 1941
 * Paratylenchus Micoletzky, 1922
 * Radopholus Thorne, 1949
 * Tylenchorhynchus Cobb, 1913
 * Pratylenchidae
 * Tylenchidae