Chabaudstrongylus		Contents		Rev 04/28/2026
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Chabaudstrongylus Menu				Ecosystem Functions and Services
		Distribution		Management
Return to Cooperiidae Menu		Feeding		References
		Go to Nemaplex Main Menu		Go to Dictionary of Terminology

Classification:

Chromadorea

Chromadoria

Rhabditida

  Rhabditina

   Trichstrongyloidea

    Cooperiidae

Chabaudstrongylus Durette-Desset & Denke, 1978

Type species of the genus: Chabaudstrongylus ninhae (Drozdz, 1967) Durette-Desset & Denke, 1978

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Morphology and Anatomy:

• Small-sized worms, 5–8 mm in length, with slight sexual dimorphism.
• Anterior end of both sexes with simple oval cephalic vesicle
• Synlophe well developed over entire worm length, lateral ridges smaller than the median ridges.

Females:

• Vulva situated near the posterior 25% of body, a transverse slit, connected directly to the ovejector
• Didelphic uterus
• Ovejector short (< less than 0.50 mm)

Males:

• Copulatory bursa developed symmetrically, with the dorsal ray branched in the posterior third per the definition of the genus Chabaudstrongylus Durette-Desset et Denke, 1978. Externodorsal ray originated from the dorsal ray. Peripheral ends of all rays extending to the edge of the bursa.
• Genital cone was characteristic structure,
• Spicules galate and equal in size and shape with ventral and dorsal processes at the peripheral end

Ref: Setsudo et al (2019)

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Distribution:

Collected from the small and large intestine of Reeve's muntjac (Muntiacus reevesi) on Izu-Oshima Island, Tokyo, Japan. Genus also reported from Indian muntjac (Muntiacus muntjac) in nothern Vietnam water chevrotain (Hyemoschus aquaticus) in Gabon, west Africa.

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Economic Importance:

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Hosts:

Reeve's muntjac (Muntiacus reevesi), Indian muntjac (Muntiacus muntjac), water chevrotain (Hyemoschus aquaticus) (Setsudo et al, 2019).

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Feeding:

Food Sources and Feeding strategies for the genus Chabaudstrongylus

Intestinal parasites

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Life Cycle:

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Damage:

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Management:

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References:

Drozdz, J, 1967. Cooperia ninhae sp. n. (Nematoda: Trichostrongylidae), a parasite of Muntjacus muntjak in Vietnam. Acta Parasitologica Polonica 14: 209-211

Durette-Desset,M.C.and Denke, M. 1978. Description de nouveaux Nematodes parasites d’un Lievre Africain et complements a l'etude morphologique de quelques Trichostrongylidae. Bulletin du Museum National d’Histoire Naturelle, Paris, 3e série, No. 515, Zoologie 354:331-347.

Setsuda, A., Kato, E., Sakaguchi, S., Tamemasa, S., Ozawa, S., Sato, H. 2020. Chabaudstrongylus ninhae (Trichostrongylidae: Cooperiinae) and Oesophagostomum muntiacum (Chabertiidae: Oesophagostominae) in feral alien Reeves’s muntjacs on Izu-Oshima Island, Tokyo, Japan. Journal of Helminthology 94, e48, 1-11. https:// doi.org/10.1017/S0022149X1900024

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