PARASITES AND ASSOCIATED PATHOLOGY OF THE SWAMP WALLABY, WALLABIA BICOLOR (MARSUPIALIA)

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Abstract
Thirty-five swamp wallabies from Victoria, New South Wales and Queensland, Australia were examined for parasites. Thirty-nine species of nematodes, five species of cestodes and eight species of arthropods were found. Wallabies from Queensland and northern New South Wales had a less diverse helminth fauna (23 species) than did wallabies from southern New South Wales and Victoria (32 species). Rugopharynx spp. and Cloacina spp. occurred in large number in the stomach but provoked no pathological changes. Known pathogenic species (Globocephaloides trifidospicularis and Hypodontus macropi) were encountered in small numbers only and did not produce any lesions. Pathological changes associated with parasites were: gastric nodules associated with Labiostrongulus clelandi and Parazoniolaimus collaris, bronchopneumonia due to Marsupostrongylus spp., biliary fibrosis associated with Progamotaenia festiva and fibrous peritonitis, pleuritis, pericarditis and eosinophilic splenitis due to Breinlia mundayi. Echinococcus granulosus was the only parasite found which also occurs in domestic animals.