Magalhães, F. A. de, R. G. Garri, C. H. Tosi, S. Siciliano, S. Chellappa, and F. J. de L. Silva. “First Confirmed Record of Feresa Attenuata (Delphinidae) for the Northern Brazilian Coast”. Biota Neotropica, vol. 7, no. 2, Jan. 2007, //www.biotaneotropica.org.br/BN/article/view/312.