Spirurida

Spirurida
Dirofilaria immitis larva Magnification 400×
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Nematoda
Class:	Chromadorea
Order:	Rhabditida
Suborder:	Spirurida
Superfamilies
10, but see text

Spirurida is an order of spirurian nematodes. Like all nematodes, they have neither a circulatory nor a respiratory system.

Some Spirurida, like the genus Gongylonema, can cause disease in humans. One such disease is a skin infection with Spirurida larvae, called "creeping disease". Some species are known as eyeworms and infect the orbital cavity of animal hosts.

Systematics

The Camallanida are sometimes included herein as a suborder, and the Drilonematida are sometimes placed here as a superfamily. There are doubts about the internal systematics of the Spirurida, and some groups placed herein might belong to other spirurian or even secernentean lineages.^[1]

The following superfamilies are at least provisionally placed in the Spirurida:

• Acuarioidea
• Aproctoidea
• Diplotriaenoidea
• Filarioidea
• Gnathostomatoidea
• Habronematoidea
• Physalopteroidea
• Rictularioidea
• Spiruroidea
• Thelazioidea

References

Citations

Sources

• Tree of Life Web Project (ToL) (2002): Nematoda. Version of 2002-JAN-01. Retrieved 2008-NOV-02.

External links

• Media related to Spirurida at Wikimedia Commons

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