Riva, Ignacio De La, and Patricia A. Burrowes. “A New Species of Psychrophrynella (Anura: Craugastoridae) from the Cordillera Real, Department La Paz, Bolivia”. Zootaxa 3887, no. 4 (November 26, 2014): 459–470. Accessed May 2, 2025. https://www.mapress.com/zt/article/view/zootaxa.3887.4.4.