Abstract
As part of a revision of the systematics of the Cyathostominea of equids, we determined that the single type-specimen of Cylicocyclus adersi Boulenger, 1920 is missing and a modern description of this rare species parasitic in donkeys Equus asinus L. and zebras E. burchelli (Gray) and E. zebra L. is not available. Systematists at a workshop on the systematics of the Cyathostominea of horses, convened on August 11, 1997 in Sun City, South Africa, listed C. adersi as a species inquirenda. Herein, we provide a redescription of C. adersi and propose a neotype for the species. The distinctive shape of the buccal capsule of C. adersi, with a relatively tiny `hoop-like thickening' at its base, a relatively small oesophageal funnel with a thick cuticular lining, and a short, but distinct, dorsal gutter readily distinguishes this species from other large species of Cylicocyclus Ihle, 1922.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Babaev, Ya., Dobrynin, N.I., & Meredov, N. (1977 ) Helminthes of men, animals and plants of Turkmenistan. Ashkhabad: Ilym, 147 pp. (In Russian).
Boulenger, C.L. (1920) Sclerostomes of the donkey in Zanzibar and East Africa. Parasitology, 12, 27–32.
Eysker, M. & Pandey, V.S. (1989) Small strongyle infections in don-keys from the high veld in Zimbabwe. Veterinary Parasitology, 30, 345–349.
Hartwich, G. (1986) Zum Strongylus tetracanthus-problem und zur systematik der Cyathostominea (Nematoda: Strongyloidea). Mitteilungen aus dem Zoologischen Museum in Berlin, 62, 61–102.
ICZN (1999) International Code of Zoological Nomenclature. Fourth Edition. London: International Trust for Zoological No-menclature, 306 pp.
Krecek, R.C., Malan, F.S., Reinecke, R.K. & Vos, V.d. (1987a) Nematode parasites from Burchell's zebras in South Africa. Journal of Wildlife Diseases, 23, 404–411.
Krecek, R.C., Reinecke, R.K. & Malan, F.S. (1987b) Studies on the parasites of zebras. V. Nematodes of the Burchell's and Hart-mann's mountain zebras from the Etosha National Park, South West Africa/Namibia. Onderstepoort Journal of Veterinary Re-search, 54, 71–78
Le Roux, P.H. (1932) Notes in the more important worms of cattle, sheep and pigs in Northern Rhodesia. Annual Bulletin of the Department of Animal Health, North Rhodesia, (1932), 9–24.
Lichtenfels, J.R. (1980) Keys to genera of the superfamily Strongyloidea. In: Anderson, R.C., Chabaud, A.G. & Willmott, S. (Eds) CIH keys to the nematode parasites of vertebrates. Farnham Royal: Commonwealth Agricultural Bureaux, No. 7, 41 pp.
Lichtenfels, J.R., Kharchenko, V.A., Krecek, R.C. & Gibbons, L.M. (1998) An annotated checklist by genus and species of 93 spe-cies 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.
Looss, A. (1902) The Sclerostomidae of horses and donkeys in Egypt. Records of the Egyptian Government School of Medicine, Cairo, (1901), 27–138.
Mfitilodze, M.W. & Hutchinson, G.W. (1990) Prevalence and abundance of equine strongyles (Nematoda: Strongyloidea) in tropical Australia. Journal of Parasitology, 76, 487–494.
Mönnig, H.O. (1928) Check list of the worm parasites of domest-icated animals in South Africa. In: 13th and 14th Report to the Director of Veterinary Education and Research. Department of Agriculture, Union of South Africa, pp. 801–837.
Pandey, V.S. & Eysker, M. (1990) Internal parasites of donkeys from the highveld of Zimbabwe. Zimbabwe Veterinary Journal, 21, 27–32.
Scialdo-Krecek, R.C. (1984) The nematode parasites ofEquus zebra hartmannae and Equus burchelli antiquorum from differ-ent areas of Southern Africa. Thesis, University of Pretoria, Onderstepoort, 261 pp.
Scialdo-Krecek, R.C., Reinecke, R.K. & Biggs, H.C. (1983) Studies on the parasites of zebras. III. Nematodes of the mountain zebra from the farm 'Kelpie' and the Namib-Naukluft Park, South West Africa/Namibia. Onderstepoort Journal of Veterinary Research, 50, 283–290.
Sultanov, M.A., Dadaev, S. & Azimov, D.A. (1975) Helminthes of perissodactyls from southern Uzbekistan. Uzbekski Biolo-gicheski Zhurnal, (1975)(3), 44–46.(In Russian).
Theiler, G. (1923) The strongylids and other nematodes parasitic in the intestinal tract of South African equines.Thesis. Pretoria: The Government. Printing and Stationery Office, 175 pp.
Theiler, G. (1924) The strongylids and other nematodes parasitic in the intestinal tract of South African Equines. In: 9th and 10th Reports to the Director of Veterinary Education and Research, Pretoria, pp. 601–773.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kharchenko, V.A., Lichtenfels, J.R., Pilitt, P.A. et al. A redescription of Cylicocyclus adersi Boulenger, 1920 (Nematoda: Strongyloidea: Cyathostominae) parasitic in equids. Syst Parasitol 59, 127–134 (2004). https://doi.org/10.1023/B:SYPA.0000044429.04246.3b
Issue Date:
DOI: https://doi.org/10.1023/B:SYPA.0000044429.04246.3b