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The Upper Rio Paraguay Basin Reveals Another Jewel Hidden: Hypostomus uruguayensis (Loricariidae)

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Abstract

The present work extends the distribution of Hypostomus uruguayensis to the upper Rio Paraguay basin. This species which was originally described from the Rio Uruguay in Southern Brazil and cited to Argentina and Bolivia is here reported for the first time within the Brazilian Midwest. Additionally, the new population was compared to the original description and the holotype of H. uruguayensis, providing a foundation for brief comments on a diagnosis of H. uruguayensis.

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ACKNOWLEDGMENTS

We are deeply greatful to Roberto Esser dos Reis (Museu de Ciências e Tecnologia da PUC—MCP, Porto Alegre, Brazil) for sharing the measurements of the Hypostomus uruguayensis holotype, to Renan Borges dos Reis for helping with the map. To Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura (Nupelia, Maringá, Brazil) and Programa de Pós-Graduação em Biologia Comparada (PGB, Maringá, Brazil) by provided logistic support.

Funding

This study was supported in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior—Brasil (CAPES), Finance Code 001 to FMA; and by the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Proc. 313623/2018-0 to CHZ.

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Authors and Affiliations

  1. Center for Biological Sciences, Department of Biology, State University of Maringa, Paraná, Brazil

    P. V. R. De Oliveira & C. H. Zawadzki

  2. Graduate Program in Comprative Biology, State University of Maringa, Paraná, Brazil

    F. M. Azevedo & C. H. Zawadzki

Authors
  1. P. V. R. De Oliveira
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  2. F. M. Azevedo
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  3. C. H. Zawadzki
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Correspondence to F. M. Azevedo.

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De Oliveira, P.V., Azevedo, F.M. & Zawadzki, C.H. The Upper Rio Paraguay Basin Reveals Another Jewel Hidden: Hypostomus uruguayensis (Loricariidae). J. Ichthyol. 63, 834–839 (2023). https://doi.org/10.1134/S0032945223040033

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