Title:Hyphessobrycon togoi, a new species from the La Plata basin (Teleostei: Characidae) and comments about the distribution of the genus in Argentina
Title:Populations of Characidium rachovii (Crenuchidae: Characidiinae) with reduction of the adipose fin from Argentina and a Southernmost record of C. occidentale
Title:Morphology of the oropharyngeak cavity and oesophagus of the farmed adult African catfish (Clarias gariepinus Burchell, 1822) / Morfología de la cavidad orofaríngea y esófago del bagre africano adulto (Clarias gariepinus Burchell, 1822)