Nuñez, José J., and Carmen A. Úbeda. 2009. “The Tadpole of Eupsophus Nahuelbutensis (Anura: Neobatrachia): External Morphology, Chondrocranium, and Comments on Its Natural History”. Zootaxa 2126 (1). Auckland, New Zealand:58–68. https://doi.org/10.11646/zootaxa.2126.1.3.