We, NMFS, issue a final rule to list two foreign marine guitarfish species under the Endangered Species Act (ESA). We considered comments submitted on the proposed listing rule and have determined that the blackchin guitarfish (Rhinobatos cemiculus) and common guitarfish (Rhinobatos rhinobatos) warrant listing as threatened species. We will not designate critical habitat for either of these species because the geographical areas occupied by these species are entirely outside U.S. jurisdiction, and we have not identified any unoccupied areas within U.S. jurisdiction that are currently essential to the conservation of either of these species.