Ribeiro, A. C., M. R. Cavallaro, and O. Froehlich. “Oligosarcus perdido (Characiformes, Characidae), a New Species of Freshwater Fish from Serra Da Bodoquena, Upper Rio Paraguai Basin, Brazil”. Zootaxa, vol. 1560, no. 1, Aug. 2007, pp. 43–53, doi:10.11646/zootaxa.1560.1.4.