Title:Description of a new species of the Neotropical cichlid genus Gymnogeophagus Miranda Ribeiro, 1918 (Teleostei: Cichliformes) from the Middle Paraná basin, Misiones, Argentina
Title:External ultrastructure of Manayunkia speciosa (Fabriciidae) from Uruguay River, Argentina / Ultraestructura externa de Manayunkia speciosa (Fabriciidae) del Río Uruguay, Argentina
Title:Trophic relationships between macroinvertebrates and fish in a pampean lowland stream (Argentina) / Relaciones tróficas entre los macroinvertebrados y peces en un arroyo de la llanura pampeana (Argentina)
Title:Fitoplancton del embalse Yacyretá (Argentina-Paraguay) a una década de su llenado / Phytoplankton of the Yacyretá Reservoir (Argentina-Paraguay) after a decade from its filling
Title:Taxonomic revision of the Nippostrongylinae (Nematoda, Heligmonellidae) parasites of Muridae from the Australasian region: the genus Odilia Durette-Desset, 1973 / Révision taxonomique des Nippostrongylinae (Nematoda, Heligmonellidae) parasites de Muridae de la région australasienne. Le genre Odilia Durette-Desset, 1973