Published on 21. March 2014 Biogeographic patterns in the cartilaginous fauna (Pisces: Elasmobranchii and Holocephali) in the southeast Pacific Ocean Carlos Bustamante, Carolina Vargas-Caro, Michael B Bennett ABSTRACT: The abundance and species richness of the cartilaginous fish community of the continental shelf and slope off central Chile is described, based on fishery-independent trawl tows made