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Visceral helminths of wild boars (Sus scrofa leucomystax) in Japan, with special reference to a new species of the genus Morgascaridia Inglis, 1958 (Nematoda: Schneidernematidae)

Published online by Cambridge University Press:  01 June 2008

H. Sato ,
K. Suzuki  and
M. Yokoyama
H. Sato*
Affiliation:
Laboratory of Veterinary Parasitology, Faculty of Agriculture, Yamaguchi University, 1677-1 Yoshida, Yamaguchi753-8515, Japan
K. Suzuki
Affiliation:
Hikiiwa Park Center, 1629 Inari-cho, Tanabe646-0051, Japan
M. Yokoyama
Affiliation:
Wildlife Management Research Center, Hyogo, 940 Sawano, Aogaki-cho, Tanba669-3842, Japan Nature and Environment Division, Institute of Natural and Environmental Sciences, University of Hyogo, 940 Sawano, Aogaki-cho, Tanba669-3842, Japan
*
*Fax: +81 83 933 5902 E-mail: sato7dp4@yamaguchi-u.ac.jp
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Abstract

Twenty-nine Japanese wild boars (Sus scrofa leucomystax), collected during the hunting seasons of 2005 and 2006 in the western part of the mainland of Japan (Honshu), were examined for their visceral helminths. Eighteen helminth parasites were prevalent in them, including 17 Nematoda species (Metastrongylus elongatus, Metastrongylus salmi, Metastrongylus asymmetricus, Metastrongylus pudendotechus, Stephanurus dentatus, Gnathostoma doloresi, Physocephalus sexulata, Ascarops strongylina, Capillaria suis, Ascaris suum, Globocephalus samoensis, Globocephalus longimucronatus, Strongyloides ransomi, Trichuris suis, Bourgelatia diducta, Oesophagostomum dentatum, and Oesophagostomum watanabei), and one Cestoda species (Pseudanoplocephala nipponensis). Muscle digestion of the diaphragm (using an artificial gastric juice) of 24 wild boars detected a single diplostomulum of probably Pharyngostomum cordatum. In addition, four female and six male adults of Morgascaridia kugii sp. n. (Nematoda: Schneidernematidae) were recovered from the large intestine of a single wild boar. Examination of an additional 20 samples of the stomach and 27 samples of the large intestine could not find this species. To date, recorded species of the genus Morgascaridia are limited to M. sellsi collected from wild boars in Uganda and Congo several decades ago, and thence, no records of the recovery are available. Morgascaridia kugii sp. n. differed from M. sellsi by smaller body dimensions, shorter distance between the precloacal sucker and the cloaca, smaller sizes of the copulatory spicules and the gubernaculum, and smaller sizes of uterine eggs.

Type
Research Papers
Information
Journal of Helminthology , Volume 82 , Issue 2 , June 2008 , pp. 159 - 168
Copyright
Copyright © Cambridge University Press 2008

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