Longistrongylus		Contents		Rev 02/25/2025
		Classification		Biology and Ecology
		Morphology and Anatomy		Life Cycle
Return to Longistrongylus Menu				Ecosystem Functions and Services
		Distribution		Management
Return to Haemonchidae Menu		Feeding		References
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Classification

Chromadorea

Chromadoria

Rhabditida

  Rhabditina

   Trichostronglyloidea

    Haemonchidae

Ostertagiinae

Longistrongylus Le Roux, 1931

Type species of the genus: Longistrongylus meyeri Le Roux, 1931

Synonyms:

Bigalkenema Ortlepp, 1963

Kobusinema Ortlepp, 1963

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Morphology and Anatomy:

• Body filiform, with small head vesicle.

• Cervical papillae small, more or less equidistant from anterior end. .

• Body with symmetrically arranged longitudinal cuticular ridges.

• Head diameter including slight vesicle25-40um

• Esophagus -.76-1.22 mm long with nerve ring, excretory pore and small cervical papillaearoubd 30-50% of that length

• Male: Prominent prebursal papillae approximately 0-018-0-072 mm anterior to bursa. Bursa with well developed symmetrical lateral lobes and reduced dorsal lobe; anteroventral ray divergent, straight or curved ventrally; dorsal ray stout, short, bifurcates at distal half. Genital cone complex with two very small rays on its ventral surface. Spicules, equal length, alate, 235-423 um long, each with two sharply pointed branches  Gubernaculum absent

  Female: Vulva in posterior third of body with slightly protruding anterior lip. \ Oviparous Tail 160-180 um long, bluntly pointed Ref: Gibbons, 1977

..

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Distribution

From antelopes in central and southern Africa.

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Economic Importance:

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Hosts:

Antelopes

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Feeding

Parasites of abomasum and small intestine of ruminants.

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Life Cycle:

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Damage:

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Management:

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References:

Gibbons, L.M. 1977. Revision of the genera Longistrongylus Le Roux 1931, Kobusinema Ortlepp, 1963 and Bigalkenema Ortlepp, 1963 (Nematoda: Trichostrongylidae). J. Helminthology 51:41-62.:

Le Roux, P. L. 1931. On Longistrongylus meyeri gen. and sp. nov., a trichostrongyle parasitizing the Red Hartebeest Bubalis caama. Journal of Helminthology, 9, 141-146.

Ortlepp, R. J. 1963. Bigalkenema namaquensis gen. and sp. nov. a trichostrogylid worm from sheep. Onderstepoort Journal of Veterinary Research, South Africa, 30, 119-124.

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