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A new species of Dermopristis Kearn, Whittington & Evans-Gowing, 2010 (Monogenea: Microbothriidae), with observations on associations between the gut diverticula and reproductive system and on the presence of denticles in the nasal fossae of the host Glaucostegus typus (Bennett) (Elasmobranchii: Rhinobatidae)

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Abstract

Dermopristis cairae n. sp. (Monogenea: Microbothriidae) is described from the skin and possibly from the nasal fossae of the giant shovel-nosed ray Glaucostegus typus (Bennett). The new species is distinguished from D. paradoxus Kearn, Whittington & Evans-Gowing, 2010 by its larger size, body shape, lack of transverse ridges on the ventral surface and absence of a seminal receptacle. Extensive short gut branches lie dorsal to the testes and adjacent to the coiled region of the vas deferens and the oötype, possibly reflecting high metabolic demand in these areas. Denticles are present in the lining of the nasal fossae of G. typus, providing a firm substrate for the cement-based attachment of a microbothriid. However, confirmation that D. cairae inhabits the nasal fossae of G. typus is required.

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Acknowledgement

We thank Prof. Janine Caira (University of Connecticut, USA), Dr Kirsten Jensen (University of Kansas, USA) and Mr Lyle Squire (Cairns Marine, Cairns, Queensland, Australia) for screening the host elasmobranch in June, 2001 by freshwater bathing.

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Authors and Affiliations

  1. Monogenean Research Laboratory, Parasitology Section, The South Australian Museum, North Terrace, Adelaide, SA, 5000, Australia

    Ian D. Whittington

  2. Marine Parasitology Laboratory, School of Earth and Environmental Sciences (DX 650 418), The University of Adelaide, North Terrace, Adelaide, SA, 5005, Australia

    Ian D. Whittington

  3. Australian Centre for Evolutionary Biology and Biodiversity, The University of Adelaide, North Terrace, Adelaide, SA, 5005, Australia

    Ian D. Whittington

  4. School of Biological Sciences, University of East Anglia, Norwich, NR4 7TJ, UK

    Graham C. Kearn

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  1. Ian D. Whittington
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  2. Graham C. Kearn
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Correspondence to Ian D. Whittington.

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Whittington, I.D., Kearn, G.C. A new species of Dermopristis Kearn, Whittington & Evans-Gowing, 2010 (Monogenea: Microbothriidae), with observations on associations between the gut diverticula and reproductive system and on the presence of denticles in the nasal fossae of the host Glaucostegus typus (Bennett) (Elasmobranchii: Rhinobatidae). Syst Parasitol 80, 41–51 (2011). https://doi.org/10.1007/s11230-011-9308-9

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  • DOI: https://doi.org/10.1007/s11230-011-9308-9

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