Assumpção, L. de, Makrakis, M.C., Makrakis, S., Piana, P.A., Silva, P.S. da, Lima, A.F. de and Fernandez, D.R. 2012. Morphological differentiation among migratory fish species from the Paraná River basin. Biota Neotropica. 12, 4 (Dec. 2012).