A new species of Otothyropsis (Siluriformes: Loricariidae) from the upper Río Paraná basin, Paraguay, with a discussion of the limits between Otothyropsis and HisonotusDOI: info:10.11646/zootaxa.4244.2.5v. 4244No. 2231–245
Calegari, Bárbara B., Morlis, Walter Gill, and Reis, Roberto E. 2017. "A new species of Otothyropsis (Siluriformes: Loricariidae) from the upper Río Paraná basin, Paraguay, with a discussion of the limits between Otothyropsis and Hisonotus." Zootaxa, 4244, (2) 231–245. https://doi.org/10.11646/zootaxa.4244.2.5.