Eigenmann, C. H.; Allen, W. R. (1942). Fishes of Western South America. I. The intercordilleran and Amazonian lowlands of Peru. II.- The high pampas of Peru, Bolivia, and northern Chile. With a revision of the Peruvian Gymnotidae, and of the genus Orestias. University of Kentucky. i-xv + 1-494, Pls. 1-22.
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Eigenmann, C. H.; Allen, W. R.
1942
Fishes of Western South America. I. The intercordilleran and Amazonian lowlands of Peru. II.- The high pampas of Peru, Bolivia, and northern Chile. With a revision of the Peruvian Gymnotidae, and of the genus Orestias.