Rhabditida is an order of free-living, parasitic and microbivorous

nematode The nematodes ( or ; ; ), roundworms or eelworms constitute the phylum Nematoda. Species in the phylum inhabit a broad range of environments. Most species are free-living, feeding on microorganisms, but many are parasitic. Parasitic worms (h ...

s living in soil. The Cephalobidae, Panagrolaimidae,

Steinernematidae The Steinernematidae are a family of nematodes in the order Rhabditida. Nematodes of the genus ''Steinernema'' are obligate insect parasites that inhabit soil. ''Xenorhabdus'' bacteria occupy nematode insecticide and synergistically kill, dige ...

, and

Strongyloididae Strongyloididae is a family of nematodes belonging to the order Rhabditida Rhabditida is an order of free-living, parasitic and microbivorous nematodes living in soil. The Cephalobidae, Panagrolaimidae, Steinernematidae, and Strongyloid ...

seem to be closer to the Tylenchia, regardless of whether these are merged with the

Rhabditia Subclass Rhabditia is mostly composed of parasitic nematodes (particularly in the Strongylida), though there are some free-living species as well (particularly in the Rhabditida). Phasmids (posterior sensory structures) are well-developed, whil ...

or not.

Tree of Life Web Project The Tree of Life Web Project (ToL) is an Internet project providing information about the diversity and phylogeny of life on Earth. This collaborative peer reviewed project began in 1995, and is written by biologists from around the world. The s ...

(2002b)
Nematoda
Version of 2002-JAN-01. Retrieved 2008-NOV-02.

Families

Rhabditida *

Myolaimina Myolaimidae is a family of nematodes in the order Rhabditida Rhabditida is an order of free-living, parasitic and microbivorous nematodes living in soil. The Cephalobidae, Panagrolaimidae, Steinernematidae, and Strongyloididae seem to b ...

**''

Incertae sedis or is a term used for a taxonomy (biology), taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertainty ...

'' ***

Myolaimoidea Myolaimidae is a family of nematodes in the order Rhabditida Rhabditida is an order of free-living, parasitic and microbivorous nematodes living in soil. The Cephalobidae, Panagrolaimidae, Steinernematidae, and Strongyloididae seem to b ...

****

Myolaimidae Myolaimidae is a family of nematodes in the order Rhabditida Rhabditida is an order of free-living, parasitic and microbivorous nematodes living in soil. The Cephalobidae, Panagrolaimidae, Steinernematidae, and Strongyloididae seem to b ...

Rhabditina Rhabditida is an order of free-living, parasitic and microbivorous nematodes living in soil. The Cephalobidae, Panagrolaimidae, Steinernematidae, and Strongyloididae seem to be closer to the Tylenchia, regardless of whether these are merg ...

** Bunonematomorpha ***

Bunonematoidea Rhabditida is an order of free-living, parasitic and microbivorous nematodes living in soil. The Cephalobidae, Panagrolaimidae, Steinernematidae, and Strongyloididae seem to be closer to the Tylenchia, regardless of whether these are merged ...

****

Bunonematidae Bunonematidae is a family of nematodes in the order Rhabditida Rhabditida is an order of free-living, parasitic and microbivorous nematodes living in soil. The Cephalobidae, Panagrolaimidae, Steinernematidae, and Strongyloididae seem to ...

** Diplogasteromorpha *** Cylindrocorporoidea ****

Cylindrocorporidae Cylindrocorporidae is a family of nematodes The nematodes ( or ; ; ), roundworms or eelworms constitute the phylum Nematoda. Species in the phylum inhabit a broad range of environments. Most species are free-living, feeding on microorganisms ...

*** Diplogasteroidea ****

Cephalobiidae Diplogastridae, formerly Diplogasteridae, are a family of nematodes (roundworms) known from a wide range of habitats, often in commensal or parasitic associations with insects. Description Diplogastrid nematodes are characterized by a distinc ...

****

Diplogasteridae Diplogastridae, formerly Diplogasteridae, are a family of nematodes (roundworms) known from a wide range of habitats, often in commensal or parasitic associations with insects. Description Diplogastrid nematodes are characterized by a distinc ...

****

Diplogasteroididae Diplogasteroididae is a family of nematodes The nematodes ( or ; ; ), roundworms or eelworms constitute the phylum Nematoda. Species in the phylum inhabit a broad range of environments. Most species are free-living, feeding on microorganisms ...

** Rhabditomorpha *** Mesorhabditoidea ****

Peloderidae The Rhabditidae are a family of nematodes which includes the model organism ''Caenorhabditis elegans''. Genera ''Bursilla'' *'' Bursilla monhysteria'' (Butschli, 1873) ''Caenorhabditis'' *''Caenorhabditis brenneri'' Sudhaus & Kiontke, 2007 * ...

*** Rhabditoidea ****

Rhabditidae The Rhabditidae are a family of nematodes which includes the model organism A model organism is a non-human species that is extensively studied to understand particular biological phenomena, with the expectation that discoveries made in t ...

Spirurina Spirurina is a suborder of nematode The nematodes ( or ; ; ), roundworms or eelworms constitute the phylum Nematoda. Species in the phylum inhabit a broad range of environments. Most species are free-living, feeding on microorganisms, but m ...

Ascaridomorpha Ascaridomorpha is an infraorder of parasitic roundworms in the order Rhabditida Rhabditida is an order of free-living, parasitic and microbivorous nematodes living in soil. The Cephalobidae, Panagrolaimidae, Steinernematidae, and Strongy ...

*** Ascaridoidea **** Acanthocheilidae ****

Anisakidae The Anisakidae are a family (biology), family of intestinal nematodes (roundworms). The larvae of these worms can cause anisakiasis when ingested by humans, in raw or insufficiently cooked fish. Anisakidae worms can infect many species of fish, ...

****

Ascarididae The Ascarididae are a family of the large intestinal roundworms. Members of the family are intestinal parasites, infecting all classes of vertebrates. It includes a number of genera,Anderson RC (2000)''Nematode Parasites of Vertebrates. Their De ...

****

Heterocheilidae ''Heterocheila'' is a genus of acalyptrate true flies (Diptera). They are placed in their own family, Heterocheilidae, in the superfamily Sciomyzoidea. They are not widely familiar outside entomological circles, but the common name "half-bridge ...

****

Raphidascarididae Raphidascarididae is a family of roundworms (also known as nematodes) in the order Ascaridida. It encompasses nine genera Genus (; : genera ) is a taxonomic rank above species and below family as used in the biological classification of liv ...

***

Cosmocercoidea Cosmocercoidea is a nematode superfamily in the order Rhabditida Rhabditida is an order of free-living, parasitic and microbivorous nematodes living in soil. The Cephalobidae, Panagrolaimidae, Steinernematidae, and Strongyloididae seem ...

****

Atractidae Atractidae is a family of nematodes belonging to the order Rhabditida Rhabditida is an order of free-living, parasitic and microbivorous nematodes living in soil. The Cephalobidae, Panagrolaimidae, Steinernematidae, and Strongyloididae ...

****

Kathlaniidae Kathlaniidae is a family Family (from ) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). It forms the basis for social order. Ideally, ...

*** Seuratoidea **** Cucullanidae **** Quimperiidae ** Gnathostomatomorpha *** Gnathostomatoidea **** Gnathostomatidae **

Oxyuridomorpha Oxyuridomorpha is an infraorder of nematode worms in the suborder Spirurina. It was formerly considered an order within Nematoda The nematodes ( or ; ; ), roundworms or eelworms constitute the phylum Nematoda. Species in the phylum inhabit ...

*** Oxyuroidea **** Pharygnodonidae *** Thelastomatoidea **** Thelastomatidae ** Spiruromorpha ***

Acuarioidea Acuariidae is a family of spirurian ses ITIS - systematics is OK but list of ta ...n nematodes. Like all nematodes, they have neither a circulatory system">circulatory nor a respiratory system. They are the only family in Taxonomic rank, superfam ...

****

Acuariidae Acuariidae is a family of spirurian ses ITIS - systematics is OK but list of ta ...n nematodes. Like all nematodes, they have neither a circulatory nor a respiratory system. They are the only family in Taxonomic rank">superfamily Acuarioidea, a ...

*** Camallanoidea **** Camallanidae ***

Filarioidea The Filarioidea are a Taxonomic rank, superfamily of highly Generalist and specialist species, specialised Parasitism, parasitic nematodes. Species within this superfamily are known as filarial worms or filariae (singular filaria). Infections wit ...

****

Onchocercidae The Onchocercidae are a family of nematodes in the superfamily Filarioidea. This family includes some of the most devastating human parasitic diseases, such as lymphatic filariasis, onchocerciasis, Loa loa filariasis, loiasis, and other Filaria ...

***

Habronematoidea Habronematoidea is a superfamily of spirurian ses ITIS - systematics is OK but list of ta ...n nematodes in the large order (biology)">order Spirurida. Like all nematodes, they have neither a circulatory system, circulatory nor a respiratory sys ...

****

Cystidicolidae Cystidicolidae is a family (biology), family of spirurian nematodes. It was described by Constantin Scriabine, Skrjabin in 1946. All members of the family are fish parasites, parasites of fish. Systematics According to the World Register of ...

**** Tetrameridae *** Physalopteroidea **** Physalopteridae ***

Thelazioidea Thelazioidea is a superfamily of spirurian ses ITIS - systematics is OK but list of ta ...n nematodes in the large order (biology)">order Spirurida. Like all nematodes, they have neither a circulatory system, circulatory nor a respiratory system ...

**** Rhabdochonidae * Tylenchina ** Cephalobomorpha *** Cephaloboidea **** Cephalobidae ** Drilonematomorpha *** Drilonematoidea **** Drilonematidae **** Homungellidae **** Ungellidae ** Panagrolaimomorpha *** Panagrolaimoidea **** Panagrolaimidae *** Strongyloidoidea **** Alloionematidae ** Tylenchomorpha *** Aphelenchoidea ****

Aphelenchidae Aphelenchidae is a family of nematodes belonging to the order Aphelenchida. Genera Genera: * '' Aphelenchus'' Bastian, 1865 * ''Bursaphelenchus __NOTOC__ ''Bursaphelenchus'' is a genus of nematodes (roundworms) in the order Aphelenchida. ...

****

Aphelenchoididae Aphelenchoididae is a nematode family in the order Aphelenchida. List of genera Subfamily Anomyctinae * Genus ''Anomyctus'' Subfamily Aphelenchoidinae * Genus ''Aphelenchoides'' * Genus ''Ficophagus'' * Genus ''Laimaphelenchus'' * Genus ''Mar ...

*** Criconematoidea ****

Criconematidae Criconematidae is a family of nematodes belonging to the order Tylenchida Tylenchida is an order (biology), order of nematodes. List of families * Superfamily Criconematoidea ** Family Criconematidae ** Family Tylenchulidae * Superfam ...

**** Hemicycliophoridae *** Sphaerularioidea ****

Anguinidae Anguinidae is a family of nematode The nematodes ( or ; ; ), roundworms or eelworms constitute the phylum Nematoda. Species in the phylum inhabit a broad range of environments. Most species are free-living, feeding on microorganisms, but m ...

****

Neotylenchidae Neotylenchidae is a family of nematodes belonging to the order Tylenchida Tylenchida is an order (biology), order of nematodes. List of families * Superfamily Criconematoidea ** Family Criconematidae ** Family Tylenchulidae * Superfam ...

***

Tylenchoidea Tylenchoidea is a superfamily of roundworms. Its members are either plant parasites or detritivore Detritivores (also known as detrivores, detritophages, detritus feeders or detritus eaters) are heterotrophs that obtain nutrients by consuming ...

****

Belonolaimidae Belonolaimidae is a family of nematodes belonging to the order Tylenchida Tylenchida is an order (biology), order of nematodes. List of families * Superfamily Criconematoidea ** Family Criconematidae ** Family Tylenchulidae * Superfam ...

****

Dolichodoridae Dolichodoridae is a family of nematodes belonging to the order Tylenchida Tylenchida is an order (biology), order of nematodes. List of families * Superfamily Criconematoidea ** Family Criconematidae ** Family Tylenchulidae * Superfam ...

**** Hoplolaimidae ****''Incertae sedis'' *****'' Deladenus'' Thorne, 1941 *****'' Paratylenchus'' Micoletzky, 1922 *****''

Radopholus ''Radopholus'' is a genus of nematodes belonging to the family Pratylenchidae. The genus has almost cosmopolitan distribution. Species: *''Radopholus arabocoffeae ''Radopholus arabocoffeae'' is a nematode in the genus '' Radopholus''. It i ...

'' Thorne, 1949 *****''

Tylenchorhynchus ''Tylenchorhynchus'' is a genus of nematodes including many species of plant parasites. The classification of stunt nematodes - those including the genus ''Tylenchorhynchus'' - is unstable; many newly discovered species within this genus are reco ...

'' Cobb, 1913 **** Pratylenchidae ****

Tylenchidae Tylenchidae is a family of nematode The nematodes ( or ; ; ), roundworms or eelworms constitute the phylum Nematoda. Species in the phylum inhabit a broad range of environments. Most species are free-living, feeding on microorganisms, but m ...

References

Nematode orders {{rhabditida-stub