Thoonchus

Thoonchus		Contents		Rev 06/18/2026
		Classification		Hosts
		Morphology and Anatomy		Life Cycle
Return to Thoonchus Menu		Economic Importance		Damage
		Distribution		Management
Return to Enchelidiidae Menu		Feeding		References
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Classification:

Enoplida: Oncholaimina
Oncholaimoidea
Enchelidiidae

Thoonchus Cobb, 1920

Type species of the genus: Thoonchus ferox Cobb, 1920

Synonyms:

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Morphology and Anatomy:

Six lips. Inner labial sensilla papilliform or setiform.
Buccal cavity large with heavily sclerotized walls, 1- 1.5 x as long as wide,
Three teeth, right ventrosublateral tooth largest; several rows of denticles present.
Amphids large and either at or behind level of the buccal cavity.
Secretory-excretory pore anterior or posterior to buccal cavity.
Marine.

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Female:

Spicules short and arcuate, gubernaculum with expanded corpus and with or without apophysis. One or two precloacal supplement(s) and papillae present or absent

Male

Spicules short and arcuate,
Gubernaculum with expanded corpus and with or without apophysis.
Precloacal supplements (1 or 2) and papillae present or absent

.Ref: Smol et al., 2014

Body size range for the species of this genus in the database - Click:

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Distribution:

A genus of free-living marine nematodes.

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Economic Importance:

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Feeding:

Food Sources and Feeding strategies for the genus Thoonchus

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Life Cycle:

For Ecophysiological Parameters for this genus, click

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Damage:

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Management:

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References:

Smol, N., Muthumbi, A., Sharma, J. 2014. Order Enoplida, 7.3. In Schmidt-Rhaesa, A. (ed) Handbook of Zoology. De Gruyter, Berlin

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Copyright 1999 by Howard Ferris.
Revised: June 18, 2026.