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 The Baracuda-style naval patrol, search and rescue vessel, Thunder Child, completed the route in 34 hours, 1 minute, and 47 seconds. Set on an anti-clockwise direction, the new record – the first of its kind - is now subject to ratification by Irish Sailing and the Union Internationale Motonautique, the world governing board for all powerboat activity. The UK claims Rockall along with a territorial sea around the islet inside the country's exclusive economic zone (EEZ). The UK also claims "a circle of UK sovereign airspace over the islet of Rockall". The UK claimed Rockall on 18 September 1955 when