Coomansus		Contents		Rev 01/19/2026
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Coomansus 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 species of genus: Coomansus parvus (de Man, 1880)  Jairajpuri and Khan, 1977

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Morphology and Anatomy:

• Lips and labial papillae prominent
• Buccal cavity barrel shaped. Dorsal tooth located in anterior half of cavity, apex directed anteriorly. Buccal cavity without ventral ridge or with weak non-denticulate ridge
• Esophago-intestinal junction nontuberculate.
• Tails of both sexes similar, conoid and ventrally arcuate.
• Caudal glands and terminal duct absent.

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Distribution:

Moist soil, freshwater environments. Common in mosses, forest soils and leaf litter.

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Feeding:

Food Sources and Feeding strategies for the genus Coomansus

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Biology and Ecology:

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Life Cycle:

Reproductive mechanisms may differ among species depending on presence of males,

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Ecosystem Functions and Services:

Regulation of opportunistic species

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Management:

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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.

Mwamula, A.O., Bae, C., Kim, Y.S., Kim, Y.H., Lee, Y-D., Lee, D.W. 2025. Characterisation of a new predatory nematode Prionchulus porosus n. sp. (Nematoda: Mononchidae) and four known mononchs from Korea. Nematology 27:1123-1148

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Copyright © 1999 by Howard Ferris.
Revised: January 19, 2026.