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By: Frana, Vitor André - Graça, Weferson Júnio da, - Gubiani, Éder André - Konerat, Jocicléia Thums - Margarido, Vladimir PavanType: ArticleIn: Neotropical IchthyologyVolume:Series:Issue:Date: 2011-06-01Page Range:Publication Info:Subjects: Gymnotidae Gymnotus pantherinus species-group karyotype La Plata River basin