Williams, J. T., and V. G. Springer. “Review of the South American-Antarctic Triplefin Fish Genus <i>Helcogrammoides</i≫ (Perciformes: Tripterygiidae)”. Revista De Biología Tropical, vol. 49, no. S1, July 2001, pp. 117–123, https://revistas.ucr.ac.cr/index.php/rbt/article/view/26236.