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

Dirofilaria immitis larva
Magnification 400×
Scientific classification
Kingdom: Animalia
Phylum: Nematoda
Class: Chromadorea
Order: Rhabditida
Suborder: Spirurida

10, but see text

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.


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:



  1. ToL (2002)


  • Tree of Life Web Project (ToL) (2002): Nematoda. Version of 2002-JAN-01. Retrieved 2008-NOV-02.
  • Media related to Spirurida at Wikimedia Commons
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