van der Heiden, Albert M, and Héctor Plascencia González. 1990. “Range Extensions of the Lophiid Anglerfish <i>Lophiodes spilurus</i> and the Stingray <i>Urotrygon nana</i≫, Along the Pacific Coast of America”. Revista De Biología Tropical 38 (1):147. https://revistas.ucr.ac.cr/index.php/rbt/article/view/24949.