Black dogfish to the clade formed by the granular dogfish ("C. granulatum") and combtooth dogfish ("C. nigrum"). The black dogfish is a common species, with a wide but discontinuous distribution in the temperate waters of the Atlantic Ocean; its range abuts, but does not extend into, the Arctic Ocean. In the northeast, it occurs from Iceland to Sierra Leone, including the Faroe Islands, southern Norway, and the Rockall Trough and Porcupine Seabight off Ireland. In the northwest, it is found from southern Greenland and Baffin Island to Virginia, being particularly abundant in the Laurentian Channel, and may occur further south to the
Rockall Bank dispute Answer from the Irish Minister of Foreign Affairs on 14 June 1990, an agreement was reached between the British and Irish governments on delimitation of the continental shelf between the two countries and that this included a line of delimitation across the Rockall Plateau. As a result, a very extensive area under Irish jurisdiction, including part of the Rockall Trough and Plateau, is not disputed by the United Kingdom. No further negotiations were taking place in relation to the rock at the time. More recently, on 11 June 2003, the Irish Minister for Communications, Marine and Natural Resources gave a