Subclass (biology), Subclass Spiruria comprises mostly parasitic secernentean nematodes. In an alternate classification, they are treated as suborder Spirurina, with the orders listed here being ranked as infraorders.
The Ascaridida and the Oxyurida, which include worms that infect many mammals (including marine mammals), are sometimes placed in subclass Rhabditia. But that seems as spurious as the erstwhile placement of the Rhigonematida in subclass Tylenchia. The Camallanida and Drilonematida are sometimes included in the Spirurida as suborder and Taxonomic rank, superfamily, respectively.
[ToL (2002)]
Some important species
*Giant roundworm (''Ascaris lumbricoides''), causes ascariasis in humans
*''Toxocara canis'', parasite of dogs
*''Anisakis'', responsible for the human disease Anisakiasis
Footnotes
References
* (2002)
Nematoda Version of 2002-JAN-01. Retrieved 2008-NOV-02.
Spiruria,
Parasitic nematodes of mammals
Protostome subclasses
{{parasitic animal-stub