The Camallanida are an
order of
nematodes.
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Parasite
Parasitism is a close relationship between species, where one organism, the parasite, lives on or inside another organism, the host, causing it some harm, and is adapted structurally to this way of life. The entomologist E. O. Wilson has ...
s of terrestrial and
aquatic vertebrates
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Copepods as obligatory
secondary hosts
They are sometimes included in the
Spirurida
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 w ...
as a
suborder
Camallanina.
Notable species and genera
*''
Dracunculus medinensis
''Dracunculus medinensis'', or Guinea worm, is a nematode that causes dracunculiasis, also known as guinea worm disease. The disease is caused by the female which, at up to in length, is among the longest nematodes infecting humans. In contr ...
'' (human as final host) and ''
Anguillicola crassus'' (eels as final host) are important species.
*''
Philometra'' is a genus in the family
Philometridae that parasitises fish.
References
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Nematode orders
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