2544 Somniosus pacificus Bigelow & Schroeder, 1944 Somniosidae Sleeper sharks Squaliformes Elasmobranchii Pacific sleeper shark North Pacific and Arctic: Taiwan to Japan and Kuril Islands, Sea of Okhotsk, southeastern Kamchatka, Commander and Aleutian Islands, and southern Baja California to Gulf of Alaska, Bering Sea, Chukchi Sea and Beaufort Sea. not stated 49 N 124 W 1934 Somniosus pacificus FISH 563481 1970 Somniosus pacificus