Spirurida

Spirurida
	Dirofilaria immitis larvaMagnification 400X; Dirofilaria immitis larva; Magnification 400X
Scientific classification
Kingdom:	Animalia;
Phylum:	Nematoda;
Class:	Secernentea;
Subclass:	Spiruria;
Order:	Spirurida;
Superfamilies
	Acuarioidea; Aproctoidea; Diplotriaenoidea; Filarioidea; Gnathostomatoidea; Habronematoidea; Physalopteroidea; Rictularioidea; Spiruroidea; Thelazioidea;

Spirurida is an order of spirurian nematodes. Like all their relatives, they have neither a circulatory a or respiratory system.

The Camallanida are sometimes included herein as a suborder, and the Drilonematida are sometimes placed here as a superfamily.

Some Spirurida, like the genus Gongylonema, can cause disease in humans.