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 in almost all matters except defence and foreign affairs. Consequently, their interests in Rockall are represented by Denmark. On their behalf, Denmark claims continental shelf rights in the Hatton-Rockall area. A communiqué issued by the Prime Minister's Office on 7 May 1985 announced the designation of not only the seabed in the immediate vicinity of the Faroes but also a vast area of the Rockall plateau to the south west. The press release which accompanied the communiqué indicated that the legal basis of this designation was the assumption that "the Faroe Islands are part of the microcontinent" formed by the