- Descrito por / Described by:
Amália M. Miquelarena & Roberto C. Menni, 2005

- Nome original / Original name:
Astyanax tumbayaensis

- Nome do artigo / Article name:
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.

- Publicado em / Published in:
Revue Suisse de Zoologie v. 112 (no. 3): 661-676.

- Localidade tipo / Type locality:
Canal artificial próximo a rodovia cruzando a vila de Tumbaya, 23°51'S, 65°28'W, bacia do rio Grande, província Jujuy, Argentina. / Man-made channel near the road crossing the village of Tumbaya, 23°51'S, 65°28'W, Grande River basin, Jujuy Province, Argentina.