L. Piálek, O. Říčan, J. Casciotta, and A. Almirón, “Crenicichla hu, a new species of cichlid fish (Teleostei: Cichlidae) from the Paraná basin in Misiones, Argentina”, Zootaxa, vol. 2537, no. 1, pp. 33–46, Jul. 2010.