| Family | Common Name | Selected Genus and Species | Image |
|---|---|---|---|
| Aulolaimidae | Nematode | Aulolaimus mubarakvilli | ![]() |
| Axonolaimidae | Nematode | Axonolaimus paraspinosus | ![]() |
| Bastianiidae | Nematode | Bastiania sinensis | ![]() |
| Haliplectidae | Nematode | Geohaliplectus andrassyi | ![]() |
| Isolaimiidae | Nematode | Isolaimium nigeriense | ![]() |
| Leptolaimidae | Nematode | Leptolaimus elegans | ![]() |
| Plectidae | Nematode | Plectus murrayi | ![]() |
| Rhabdolaimidae | Nematode | Syringolaimus smolae | ![]() |
| Teratocephalidae | Nematode | Teratocephalus lirellus | ![]() |
| Tripyloididae | Nematode | Bathylaimus gracilis | ![]() |
| Family | Common Name | Selected Genus and Species | Image |
|---|---|---|---|
| Ceramonematidae | Nematode | Ceramonema inguinispina | ![]() |
| Choniolaimidae | Nematode | Cobbionema acrocerca | ![]() |
| Chromadoridae | Nematode | Atrochromadora naviculatum | ![]() |
| Comesomatidae | Nematode | Vasostoma brevispicula | ![]() |
| Cyatholaimidae | Nematode | Paracanthonchus heterodontus | ![]() |
| Desmodoridae | Nematode | Desmodora minuta | ![]() |
| Draconematidae | Nematode | Megadraconema cornutum | ![]() |
| Epsilonematidae | Nematode | Metepsilonema hagmeieri | ![]() |
| Microlaimidae | Nematode | Microlaimus korari | ![]() |
| Monoposthiidae | Nematode | Monoposthia mirabilis | ![]() |
| Richtersiidae | Nematode | Richtersia argentinae | ![]() |
| Selachinematidae | Nematode | Gammanema magnum | ![]() |
| Xennellidae | Nematode | Xennella suecica | ![]() |
| Family | Common Name | Selected Genus and Species | Image |
|---|---|---|---|
| Desmoscolecidae | Nematode | Desmoscolex falcatus | ![]() |
| Family | Common Name | Selected Genus and Species | Image |
|---|---|---|---|
| Actinolaimidae | Nematode | Neoactinolaimus kosambus | ![]() |
| Alaimidae | Soil-inhabiting Nematode | Alaimus assamens | ![]() |
| Anatonchidae | Predatory Nematode | Miconchus studeri | ![]() |
| Aporcelaimidae | Nematode | Aporcelaimellus cylindricus | ![]() |
| Belondiridae | Plant-feeder Nematode | Belondira tropica | ![]() |
| Campgdoridae | Nematode | Campydora demonstrans | ![]() |
| Carcharolaimidae | Nematode | Carcharolaimus teres | ![]() |
| Cobbonchidae | Nematode | Cobbonchus palustris | ![]() |
| Diphterophoridae | Nematode | Diphtherophora lata | ![]() |
| Dorylaimidae | Nematode | Labronema ibarakiense | ![]() |
| Falcihastidae | Nematode | Falcihasta palustris | ![]() |
| Iotonchusidae | Nematode | Iotonchus lotilabiatus | ![]() |
| Leptonchidae | Nematode | Leptonchus granulosus | ![]() |
| Longidoridae | Needle Nematode | longidorus elongatus | ![]() |
| Mononchidae | Nematode | Mononchus truncatus | ![]() |
| Mononchulidae | Nematode | Mononchulus nodicaudatus | ![]() |
| Nygolaimellidae | Freshwater Nematode | Nygolaimellus abnormis | ![]() |
| Nygolaimidae | Freshwater Nematode | Paravulvus moroccanus | ![]() |
| Opailaimidae | Nematode | Opailaimus mirus | ![]() |
| Oxydiridae | Nematode | Oxydirus tenuicaudatua | ![]() |
| Qudsianematidae | Nematode | Hulqus zelandicus | ![]() |
| Trachypleurosidae | Nematode | Trachypleurosum indicum | ![]() |
| Tylencholaimellidae | Nematode | Tylencholaimellus masakii | ![]() |
| Tylencholaimidae | Nematode | Meylis dicephalus | ![]() |
| Family | Common Name | Selected Genus and Species | Image |
|---|---|---|---|
| Anoplostomatidae | Nematode | Anoplostoma nhatrangensis | ![]() |
| Anticomidae | Nematode | Anticoma subsimilis | ![]() |
| Cryptonchidae | Nematode | Cryptonchus tristis | ![]() |
| Enchelidiidae | Nematode | Belbolla warwicki | ![]() |
| Enoplidae | Nematode | Enoplus meridionalis | ![]() |
| Eurystominidae | Nematode | Eurystomina terricola | ![]() |
| Ironidae | Nematode | Trissonchulus baldwini | ![]() |
| Lauratonematidae | Nematode | Lauratonema macrostoma | ![]() |
| Leptosomatidae | Nematode | Thoracostoma setosum | ![]() |
| Oncholaimidae | Nematode | Oncholaimus paralangrunensis | ![]() |
| Onchulidae | Nematode | Kinonchulus sattleri | ![]() |
| Oxystominidae | Nematode | Halalaimus diacros | ![]() |
| Phanodermatidae | Nematode | Phanoderma ocellatum | ![]() |
| Prismatolaimidae | Nematode | Prismatolaimus intermedius | ![]() |
| Rhabdodemaniidae | Nematode | Rhabdodemania minor | ![]() |
| Symplocostomatidae | Nematode | Symplocostoma tenuicolle | ![]() |
| Thoracostomopsidae | Nematode | Thoracostomopsis carolae | ![]() |
| Trefusiidae | Nematode | Trefusia piperata | ![]() |
| Triodontolaimidae | Nematode | Triodontolaimus acutus | ![]() |
| Tripylidae | Nematode | Tripyla daviesae | ![]() |
| Family | Common Name | Selected Genus and Species | Image |
|---|---|---|---|
| Mermithidae | Grasshopper Nematode | Mermis nigrescens | ![]() |
| Family | Common Name | Selected Genus and Species | Image |
|---|---|---|---|
| Aponchiidae | Nematode | Synonema obtusicaudatum | ![]() |
| Linhomoeidae | Nematode | Linhomoeus undulatus | ![]() |
| Monhysteridae | Nematode | Monhystera stagnalis | ![]() |
| Scaptrellidae | Nematode | Scaptrella cincta | ![]() |
| Siphonolaimidae | Nematode | Siphonolaimus japonicus | ![]() |
| Sphaerolaimidae | Nematode | Parasphaerolaimus magdolnae | ![]() |
| Xyalidae | Nematode | Paramphimonhystrella barbula | ![]() |
| Family | Common Name | Selected Genus and Species | Image |
|---|---|---|---|
| Mononchida | Nematode | Coomansus venezolanus | ![]() |
| Family | Common Name | Selected Genus and Species | Image |
|---|---|---|---|
| Cystoopsidae | Nematode | Cystoopsis acipenseri | ![]() |
| Robertdollfusidae | Parasitic Nematode | Haycocknema perplexum | ![]() |
| Trichinellidae | Trichina Worm | Trichinella spiralis | ![]() |
| Trichuridae | Whipworm | Trichuris trichiura | ![]() |
| Family | Common Name | Selected Genus and Species | Image |
|---|---|---|---|
| Diphtherophoridae | Nematode | Longibulbophora ammophilae | ![]() |
| Trichodoridae | Stubby-root Nematode | Trichodorus obtusus | ![]() |