780 Apristurus riveri Bigelow & Schroeder, 1944 Pentanchidae Deepwater catsharks Carcharhiniformes Elasmobranchii Broadgill catshark Western Central Atlantic: Cuba, northern Gulf of Mexico, and Panama. FB 2737182 Apristurus riveri 1061.4000244140625 m AMNH 84218 1974 Apristurus riveri ISH 3548-1979 1979 Apristurus riveri 1004 m ISH 3557-1979 1979 Apristurus riveri 1000 - 1008 m