Long, D. J. (1997). First account oí tbe Birdbeak Dogfish Shark, <i>Deania calcea</i>, (Chondrichthyes: SquaUdae) from tbe northern coast of Peru. Revista De Biología Tropical, 45(2), 937. Retrieved from https://revistas.ucr.ac.cr/index.php/rbt/article/view/21081