Trichocephalida
| Trichocephalida | ||||||||||||
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Larva of Trichinella spiralis |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Trichocephalida | ||||||||||||
Trichocephalida (from ancient Greek thrix 'hair' and kephalē 'head'; in other classifications also referred to as Trichinellida or Trichurida ) are an order of roundworms .
The characteristic feature of the Trichocephalida is the stichosome , a formation of large gland cells ( stichocytes ) in the esophageal wall . Both sexes have only one gonad . Males have only one spiculum or no spiculum at all . The eggs have two pole pods.
Familys:
- Anatrichosomatidae Yamaguti , 1961
- Capillariidae Railliet , 1915
- Cystoopsidae Skryabin , 1923
- Trichinellidae Ward , 1907
- Trichosomoididae Hall , 1916
- Trichuridae Ransomware , 1911
Three genera are of medical importance: hairworms , whipworms and trichinae .
literature
- Timothy M. Goater, Cameron P. Goater, Gerald W. Esch: Parasitism: The Diversity and Ecology of Animal Parasites . Cambridge University Press, 2nd ed. 2013, ISBN 9781107649613 , p. 218.