Sleeper Sharks

It is widely distributed in the polar latitudes of the Northern Hemisphere, including the northern Atlantic Ocean, the Barents Sea, and the White Sea, sometimes entering the Kara Sea. Off Greenland, it is found along the shores and in the deep fjords of the northern part of the island. It inhabits depths of 200–900 m and undertakes long-distance migrations.

It is found in the North Pacific on continental shelves and slopes in Arctic and temperate waters between latitudes 70°N and 22°N and in at least two places in the western tropical Pacific near Palau and the Solomon Islands, from the surface to 2,000 m.

It is found in the southern and subantarctic extremes of the Atlantic, Indian and Pacific Oceans, and some northern reaches of the Antarctic oceans, at depths of 400–1,100 m.

It is known only from a single adult specimen collected in the western North Pacific off Taiwan.

It is found in the Pacific Ocean and has been recorded off the coasts of Japan and New Zealand, and possibly near Salas y Gómez and the Nazca Ridge, at depths of 120–1,116 m.

It is found in subtropical and temperate waters of the eastern Atlantic, from Portugal to Western Sahara, and in the western Mediterranean Sea off Algeria, Tunisia, Morocco, Spain, France, and Italy, at depths of 200–1,000 m.

It is found in the western Atlantic from the Grand Banks of Newfoundland to Delaware, and in the eastern Atlantic from Iceland to Sierra Leone, including the western Mediterranean Sea, the Azores, Madeira, and from southern Namibia to western South Africa. In the Indian Ocean, it occurs off the Seychelles, and in the Pacific off Japan, New Zealand, and southern Australia, including Tasmania. It occurs at depths of 150–3,675 m.

It is found throughout the western and eastern Indian Ocean, the south-central Atlantic Ocean, and the South Pacific Ocean. It inhabits continental shelves in tropical, subtropical, and temperate seas at depths of 100–1,500 m.

It is widely distributed in the eastern Atlantic Ocean, ranging from Iceland to Namibia. It also occurs in the waters of Australia and New Zealand, and off the coast of Chile. In the Indian Ocean, it is found in small, isolated areas around Aldabra Atoll in the Mozambique Channel and along the Malabar Coast of southern India. It occurs at depths of 230–1,500 m.

It is found from the eastern Indian Ocean around southern Australia to New Zealand, at depths of 150–500 m.

It inhabits the waters around the Azores, in the central Atlantic Ocean, on the Mid-Atlantic Ridge, at depths of 300–1,500 m.

It is found off the east coast of New Zealand’s South Island, at depths of 300–500 m.

It is found in the northwest Pacific from Suruga Bay and adjacent waters of Japan at depths of  500–800 m.

It is found on the lower continental slopes between latitudes 50°S and 54°S in the south-eastern Pacific Ocean from the Straits of Magellan, and the south-western Pacific from New Zealand, at depths of 650–920 m.

It is found in the eastern Atlantic, from Scotland to Spain, Portugal, and Senegal, and the south-western Pacific from New Zealand, between latitudes 58°N and 15°N, at depths of 200–1,600 m.

It is found in latitudes between 64°N and 48°S within the Atlantic, Pacific and Indian Ocean, at depths of 200–2,000 m.