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 EEZ beyond the islet. The remaining issue is the status of the continental shelf rights of the surrounding ocean floor. These are the exclusive rights to exploit any resources on or under the ocean floor (oil, natural gas, etc.) and should not be confused with the EEZ, as continental shelf rights do not carry any privileges with regard to fisheries. Ownership of these rights in the Rockall area are disputed between the United Kingdom, Denmark (for the Faroe Islands), Ireland and Iceland. The Faroe Islands are an autonomous country of the Kingdom of Denmark. Since 1948 they have had self-government