Identification of the sharks of the genus Etmopterus Rafinesque, 1810 (Elasmobranchii: Etmopteridae) from the upper slope of southern Brazil, with comparison between the species E. bigelowi Shirai & Tachikawa, 1993 and E. pusillus Lowe, 1839. (2008). Brazilian Journal of Oceanography, 56(2), 139-143. https://doi.org/10.1590/S1679-87592008000200006