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Carvalho, T.P. and Reis, R.E. 2009. Four new species of Hisonotus (Siluriformes: Loricariidae) from the upper rio Uruguay, southeastern South America, with a review of the genus in the rio Uruguay basin. Zootaxa. 2113, 1 (May 2009), 1–40. DOI:https://doi.org/10.11646/zootaxa.2113.1.1.