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A new species of Drepanocephalus Dietz, 1909 (Digenea: Echinostomatidae) from the double-crested cormorant Phalacrocorax auritus (Lesson) (Aves: Phalacrocoracidae) in North America

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Abstract

Drepanocephalus auritus n. sp. is described based on specimens from the double-crested cormorant Phalacrocorax auritus (Lesson) in North America. The new species differs from its congeners in its very narrow, elongate body, long uterine field and widely separated testes. Sequences of the nuclear rRNA gene cluster, spanning the 3′ end of the nuclear ribosomal 18S rRNA gene, internal transcribed spacer region (ITS1+5.8S gene+ITS2) and partial 28S gene (2,345 bp), were identical in specimens collected from North Dakota, Minnesota and Mississippi, USA. Sequences of the 651 bp long fragment of the mitochondrial cox1 gene exhibited very low intraspecific variability (< 1%). Comparisons of the newly-generated sequences with those available in the GenBank indicate that the sequences from North America published under the name D. spathans Dietz, 1909 in fact represent D. auritus n. sp.

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Acknowledgements

The authors thank Dr Robin Overstreet (Gulf Coast Research Laboratory, University of Southern Mississippi, Ocean Springs, USA) who generously provided laboratory facilities and equipment for the collection and processing of birds. We thank the two anonymous reviewers for their comments and suggestions. This study was supported in part by the National Sciences Foundation award DEB1050525, the European Union Structural Funds project “Postdoctoral Fellowship Implementation in Lithuania” (VP1-3.1-ŠMM-01-V-02-004) and the Czech Science Foundation (project ECIP P505/12/G112).

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Authors and Affiliations

  1. Laboratory of Parasitology, Nature Research Centre, Akademijos 2, 08412, Vilnius, Lithuania

    Olena Kudlai

  2. Department of Parasitology, Institute of Zoology, B. Khmelnytskogo 15, Kiev, 01601, Ukraine

    Olena Kudlai

  3. Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, Branišovská 31, 370 05, České Budějovice, Czech Republic

    Aneta Kostadinova

  4. Institute for Marine Mammal Studies, 10801 Dolphin Lane, Gulfport, MS, 39502, USA

    Eric E. Pulis

  5. Department of Biology, University of North Dakota, 10 Cornell Street, Grand Forks, ND, 58202, USA

    Vasyl V. Tkach

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  1. Olena Kudlai
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  2. Aneta Kostadinova
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  3. Eric E. Pulis
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  4. Vasyl V. Tkach
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Correspondence to Olena Kudlai.

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Kudlai, O., Kostadinova, A., Pulis, E.E. et al. A new species of Drepanocephalus Dietz, 1909 (Digenea: Echinostomatidae) from the double-crested cormorant Phalacrocorax auritus (Lesson) (Aves: Phalacrocoracidae) in North America. Syst Parasitol 90, 221–230 (2015). https://doi.org/10.1007/s11230-015-9550-7

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