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By: Vera-Alcaraz, Héctor S. - Graça, Weferson Júnio da, - Shibatta, Oscar AkioType: ArticleIn: Neotropical IchthyologyVolume:Series:Issue:Date: 2008-01-01Page Range:Publication Info:Subjects: Microglanis parahybae species complex río de La Plata basin