Title:A new species of Bryconamericus (Characiformes: Characidae) from the Cuña-Pirú creek in north-eastern Argentina, with comments on accompanying fishes
Title:A new species of the Liolaemus elongatus group (Iguania: Liolaemidae) from Neuquén Province, Argentina, with comments on its genital morphology / Una nueva especie del grupo Liolaemus elongatus (Iguania: Liolaemidae) de la provincia de Neuquén, Argentina, con comentarios sobre su morfología genital
Title:Astyanax tumbayaensis, a new species from northwestern Argentina highlands (Characiformes: Characidae) with a key to the Argentinean species of the genus and comments on their distribution
Title:Biogeographical and ecological comments on "A new Neotropical species of the genus Parochlus Enderlein, 1912 (Chironomidae: Podonominae) and new distribution in Argentina" by Rodríguez et al. 2009 / Comentarios biogeográficos y ecológicos sobre “A new Neotropical species of the genus Parochlus Enderlein, 1912 (Chironomidae: Podonominae) and new distribution in Argentina” por Rodríguez et al. 2009
Title:Mamíferos fósiles de la región de La Plata, Buenos Aires, Argentina: comentarios sobre la historia de sus hallazgos / Fossil mammals from the La Plata region (Buenos Aires, Argentina), comments on the history of their findings / Mamíferos fósseis da região de La Plata (Buenos Aires, Argentina), comenários sobre a história de seus achados
Title:Historia y arquitectura - apuntes para un debate / History and architecture - comments for a debate / História e arquitetura - anotaço¿es para um debate
Title:Comentarios sobre los Modelos y la Práctica de la Comunicación para el Desarrollo / Comments relating to models and practice of communication for development
Title:A Small Body Sized Non-Aristonectine Elasmosaurid (Sauropterygia, Plesiosauria) from the Late Cretaceous of Patagonia with Comments on the Relationships of the Patagonian and Antarctic Elasmosaurids / Un pequeño elasmosáurido no aristonectino (sauropterygia, plesiosauria) del cretácico superior de patagonia con comentarios sobre la relación entre los elasmosáuridos de Antártida y Patagonia