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

Classification:

Type speciews of the genus: Mononchus truncatus Bastian. 1865

      Back to Top

Morphology and Anatomy:

• Lips and labial papillae not well developed.
• Buccal cavity twice as long as wide;
• Dorsal tooth massive, anterior, with apex directed forward in cavity, subvental teeth absent, ventral ridge absent.
• Esophago-intestinal junction nontuberculate.
• Tails of both sexes similar, elongate with rounded terminus.
• Caudal glands and terminal duct present.
• Often found in aquatic habitats.

	Females:   Didelphic amphidelphic, ovaries reflexed. Males: Spicules long and thin
Mononchus sp. ingesting Helicotylenchus pseudorobustus. Photomicrograph by Nicola Vovlas (IPP-CNR, Bari, Italy).
Body size range for the species of this genus in the database - Click:

Back to Top

Distribution:

Moist soil, freshwater environments.

Back to Top

Feeding:

Food Sources and Feeding strategies for the genus Mononchus

Feed as predators on other nematodes.  Classified as predator by Yeates et al. (2009).

Click on button below to download, then click on downloaded file for movie of Mononchus feeding on nematodes.

Back to Top

Biology and Ecology:

Back to Top

Life Cycle:

Back to Top

Ecosystem Functions and Services:

Regulation of opportunistic species through predation.

Back to Top

Management:

Back to Top

References:

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.

Back to Top

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