Nuñez, J. J., & Úbeda, C. A. (2009). The tadpole of Eupsophus nahuelbutensis (Anura: Neobatrachia): external morphology, chondrocranium, and comments on its natural history. Zootaxa, 2126(1), 58–68. https://doi.org/10.11646/zootaxa.2126.1.3