Hugo Luis LópezJorge Rafael CasciottaAmalia María MiquelarenaRoberto C. Mennk
From 58 species collected in the Uruguay river and some of its affluents, new localities are reported for six Characoidei species (Schizodon platae, Glandulocauda terofali, Holoshestes pequira, Hyphessobrycon luetkeni, H. meridionalis and Aphyocharax rubropinnis) and for three Siluriformes (Megalodoras laevigatulus, Auchenipterus nuchalis and Bunocephalus ihe‐ringi). For these nine species morphological data and complete Argentine references are given. Chemical data on the affluents are checked with those from neighbouring areas.
David W. GreenfieldTeresa A. GreenfieldJaime Villa
Luis VolkmannRubén Cargnelutti
Juan Sebastian Velasco GarzónMariana Catalina Gutiérrez-Espinosa