Tridentoinfundibulum

Tridentoinfundibulum	Contents	Rev 10/15/2025
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Tridentoinfundibulum Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Strongylidae Menu	Feeding	References
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Classification:

Chromadorea
Chromadoria

Rhabditida
Rhabditina

Strongyloidea

Cyathostominea

Strongylidae

Cyathostominae

Tridentoinfundibulum Tsoijo in Popva, 1958

Type species of the genus: Tridentoinfundibulum gobi Tsoijo in Popva, 1958

Synonyms:

Cylicostephanus of Lichtenfels & Klei, 1988, in part

List of synonymies per Lichtenfels et al., 1998

Morphology and Anatomy:

Female:

Males:

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

Feeding:

Food Sources and Feeding strategies for the genus Tridentoinfundibulum

Intestinal parasites of equids

Species of the Cyathostominae have a direct lifecycle, with no intermediate host.The third larval stage (L3) develops in feces deposited iin areas where animals are grazing. The ingested larval nematodes continue their maturation through subsequent sthegs to the adult and new eggs may be deposited in feces in 5-6 weeks. Eggs hatch in the feces and larvae develpo to the third stage when they enter an apparent dauer stage surrounded by an extra protective cuticle. They are able to survive in the grazing area for prolonged periods. Once ingested, the encysted L3 nematodes may remain encysted in the intestinal wall for periods up to 2 years. In temperate climates, the nematodes tend to enter the dauer stage during cooler months while in tropical areas the dauer stage may be entered in the summer as a protection against heat (Corning, 2009).

For Ecophysiological Parameters for this genus, click

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Ecosystem Functions and Services:

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Management:

Anthelminthic treatment schedule with rotation of drugs to delay development of parasite resistance to the medications.

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References:

Corning, S. 2009. Equine cyathostomins: a review of biology, clinical significance and therapy. Parasites & Vectors 2(Suppl. 2) S1 doi: 10.1186/1756-3305-2-S2-S1

Lichtenfels, J.R., Karchenko, V.A., Krecek, R.C., Gibbons, L.M. 1998. An annotated checklist by genus and species of 93 species level names for 51 recognized species of small strongyles (Nematoda: Strongyloidea: Cyathostominea) of horses, asses and zebras of the world. Veterinary Parasitology 79:65-79.