Parmaturus melanobranchus  
©The Food and Agriculture Organization of the United Nations (FAO)     photoed
Compagno, L.J.V., 1984. FAO species catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes.. FAO Fish. Synop. 125(4/2):251-655.