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A morphological and electrophoretic study of Rugopharynx zeta (Johnston & Mawson, 1939) (Nematoda: Strongyloidea), with the description of a new species, R. mawsonae, from the black-striped wallaby Macropus dorsalis (Marsupialia: Macropodidae)

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Abstract

Rugopharynx zeta (Johnston & Mawson) (Nematoda: Strongyloidea) is redescribed from the rock wallabies Petrogale penicillata penicillata, P. p. herberti, P. inornata and P. assimilis from Queensland and New South Wales, Australia. Specimens formerly assigned to this nematode taxon from the wallabies Macropus dorsalis and M. parma are treated as a new species, R. mawsonae. R. mawsonae n. sp. differs from R. zeta in the shape of the dorsal ray, length of spicules, morphology of spicule tip, length of female tail and position of deirid. The morphological differences are supported by electrophoretic data. R. zeta and R. mawsonae n. sp. had fixed genetic differences at 45.0% of the 21 enzyme loci examined, while each differed at 38.1% and 45.0% of loci respectively from the morphologically distinct R. delta (Johnston & Mawson). The known host and geographical distributions of R. zeta and R. mawsonae n. sp. are reviewed.

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Author notes

  1. R. H. Andrews

    Present address: Department of Microbiology and Immunology, University of Adelaide, 5000, Adelaide, South Australia, Australia

Authors and Affiliations

  1. Department of Veterinary Science, University of Melbourne, 3052, Parkville, Victoria, Australia

    I. Beveridge

  2. Evolutionary Biology Unit, South Australian Museum, 5000, Adelaide, South Australia, Australia

    N. B. Chilton & R. H. Andrews

Authors
  1. I. Beveridge
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  2. N. B. Chilton
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  3. R. H. Andrews
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Beveridge, I., Chilton, N.B. & Andrews, R.H. A morphological and electrophoretic study of Rugopharynx zeta (Johnston & Mawson, 1939) (Nematoda: Strongyloidea), with the description of a new species, R. mawsonae, from the black-striped wallaby Macropus dorsalis (Marsupialia: Macropodidae). Syst Parasitol 27, 159–171 (1994). https://doi.org/10.1007/BF00008478

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  • DOI: https://doi.org/10.1007/BF00008478

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