Iotonchus		Contents		Rev 06/10/2025
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Iotonchus Menu				Ecosystem Functions and Services
		Distribution		Management
Return to Iotonchdae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification:

Type species of the genus: Iotonchus gymnolaimus (Cobb, 1893) Andrassy, 1958

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Morphology and Anatomy:

• Buccal cavity generally barrel shaped, dorsal tooth located midway to nearly basal in cavity, apex directed anteriorly. Subventral teeth absent.
• Esophago-intestinal junction tuberculate.
  Tails of both sexes similar, narrow and
  elongated or short and conical. Caudal glands and
  terminal duct present in most species. Males described
  for more than half known species.

Photomicrographs and comparative schematic drawings of buccal cavities of genera of Mononchida

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Distribution:

Moist soil, freshwater environments.

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Feeding:

Food Sources and Feeding strategies for the genus Iotonchus

  A specialist predator of other nematodes.   

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Biology and Ecology:

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Life Cycle:

Sexually reproducing in species with males

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Ecosystem Functions and Services:

Regulation of opportunistic species

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Management:

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References:

Andrassy, I. 1958. Uber das System der Mononschiden (Nononcgidae Chitwood, 1937; Nematoda).  Ann. Hisat-Nat, Musei Nationalis Hungarica 50:153-169.

Mulvey, R.H. 1978. Predaceous nematodes of the family Mononchidae from the Mackenzie and Porcupine river systems and Somerset Island, N.W.T., Canada. Can J. Zool. 56: 1847-1868.

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Copyright  1999 by Howard Ferris.
Revised: June 10, 2025.