“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”, Braz. j. oceanogr., vol. 56, no. 2, pp. 139–143, Jun. 2008, doi: 10.1590/S1679-87592008000200006.