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 Rockall Bank dispute Several states have claimed interests over the sea bed adjoining Rockall. Denmark (for the Faroe Islands), Iceland, Ireland and the United Kingdom have all made submissions to the commission set up under the United Nations Convention on the Law of the Sea (UNCLOS). The United Nations Convention on the Law of the Sea states, "Rocks which cannot sustain human habitation or economic life of their own shall have no exclusive economic zone or continental shelf." The convention was ratified by all four states in dispute over the Rockall Plateau – Iceland on 26 January 1985, Ireland on