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A re-description of Physocephalus dromedarii stat. nov. (Nematoda: Spirocercidae), an abomasal nematode of dromedaries (Camelus dromedarius)

Published online by Cambridge University Press:  04 July 2013

R.K. Schuster*
Affiliation:
Central Veterinary Research Institute, PO Box 597, Dubai, United Arab Emirates
G. Wibbelt
Affiliation:
Leibniz Institute for Zoo and Wildlife Research, Alfred-Kowalke-Str. 17, 10315Berlin, Germany
J. Kinne
Affiliation:
Central Veterinary Research Institute, PO Box 597, Dubai, United Arab Emirates

Abstract

Physocephalus dromedarii stat. nov. was found in the abomasum of two adult female dromedaries originating from a farm in Dubai. Previously, this nematode has been misidentified as a subspecies of Ph. sexalatus but morphological differences are striking enough for it to be upgraded to a species. Physocephalus dromedarii is larger than Ph. sexalatus and has longer spicules. There are 20–22 oblique crests at the ventral surface between the caudal alae of the male compared to 7–8 in the case of Ph. sexalatus. The most significant differences are the presence of two pairs of papillae between cloaca and postcloacal plate of the male and the existence of a swelling in the second half of the female body formed by loops of both uterine horns.

Type
Research Papers
Copyright
Copyright © Cambridge University Press 2013 

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