Digenean parasites of the Neotropic Cormorant, Phalacrocorax brasilianus (Gmelin, 1789) (Aves: Phalacrocoracidae) from Argentina: Distribution extension and new host records

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Abstract

Thirteen specimens of Phalacrocorax brasilianus (Gmelin, 1789) from three areas of the Chaqueña Subregion of Argentina were examined for digeneans. Ten species were found: four diplostomids (Austrodiplostomum mordax, A. ostrowskiae, Tylodelphys adulta and Hysteromorpha triloba), three echinostomatids (Drepanocephalus spathans, Paryphostomum segregatum, and P. parvicephalum), one strigeid (Strigea falconis brasiliana), one psilostomid (Ribeiroia ondatrae) and one prosthogonimid (Prosthogonimus ovatus). Tylodelphys adulta and S. f. brasiliana are reported for the first time as parasites of P. brasilianus and new geographical records are presented. © 2011 Check List and Authors.

Figures

  • Table 1. Digenean species from P. brasilianus: deposit numbers of voucher specimens in MLP, infection sites (BF = bursa Fabricii, I = intestine, LI = large intestine, S = stomach, SI = small intestine), number of examined birds (N), prevalence (P), mean intensity (IM), NH = number of helminths.
  • Figures 1-4. Digeneans from P. brasilianus. 1. Austrodiplostomum mordax. Bar = 100 μm. 2. Austrodiplostomum ostrowskiae. Bar = 400 μm. 3. Tylodelphys adulta. Bar = 100 μm. 4. Hysteromorpha triloba. Bar = 200 μm.
  • Figures 5-7. Digeneans from P. brasilianus. 5. Strigea falconis brasiliana. Bar = 200 μm. 6. Ribeiroia ondatrae. Bar = 200 μm. 7. Prosthogonimus ovatus. Bar = 500 μm.
  • Table 2. Comparative measurements (in micrometers) of Austrodiplostomum mordax Szidat and Nani, 1951 collected in P. brasilianus. *Calculated from original description
  • Figures 8-10. Digeneans from P. brasilianus. Bar = 500 μm. 8. Paryphostomum segregatum. 9. Paryphostomum parvicephalum. 10. Drepanocephalus spathans.
  • Table 3. Comparative measurements (in micrometers) of Austrodiplostomum ostrowskiae Dronen, 2009. *Calculated from original description.

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APA

Drago, F. B., Lunaschi, L. I., & Schenone, M. (2011). Digenean parasites of the Neotropic Cormorant, Phalacrocorax brasilianus (Gmelin, 1789) (Aves: Phalacrocoracidae) from Argentina: Distribution extension and new host records. Check List, 7(6), 871–875. https://doi.org/10.15560/7.6.871

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