Ávila, R. W., Kawashita-Ribeiro, R. A. and Morais, D. H. (2011) “A new species of Proceratophrys (Anura: Cycloramphidae) from western Brazil”, Zootaxa. Auckland, New Zealand, 2890(1), pp. 20–28. doi: 10.11646/zootaxa.2890.1.2.