| Rhabditida Chitwood, 1933 | |
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| Adult and two young of Caenorhabditis elegans | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Nematoda |
| Class: | Chromadorea |
| Order: | Rhabditida |
| Superfamilies | |
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Rhabditida is an order of free-living, zooparasitic and phytoparasitic microbivorous nematodes (roundworms).
Order include 8 superfamilies. Diagnosis:
Oral aperture with 2, 3 or 6 lips. Stoma has five departments ( cheilostoma, prostoma, mesostoma, metastoma and telostoma). Pharynx divided on corpus, isthmus and bulbus. Midgut is oligocytosis. Nematodes have three rectal glands. Muscular system is meromyaric, with platymyaric cells. Сervical gland H-form, but some species have supliment excretory glands on the posterior part of body. Males sometimes have bursa with rib- like papillies or another supliments.
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