Giora, Julia, and Luiz Roberto Malabarba. 2016. “Gymnotus refugio, a New and Endangered Species of Electric Fish of the Gymnotus pantherinus Species-Group from Southern Brazil (Gymnotiformes: Gymnotidae) ”. Zootaxa 4066 (5). Auckland, New Zealand:581–590. https://doi.org/10.11646/zootaxa.4066.5.6.