Whitetail dogfish - The whitetail dogfish is a rare species known only from a few specimens taken by tuna longliners and trawlers.
Azores dogfish - The Azores dogfish, Scymnodalatias garricki, is a very rare sleeper shark of the family Dalatiidae.
Sparsetooth dogfish - The sparsetooth dogfish, Scymnodalatias oligodon, is a very rare sleeper shark of the family Dalatiidae, the holotype of which was taken in the subtropical southeast Pacific at a depth of up to 200 m.
Sherwood dogfish - The sherwood dogfish is ovoviviparous.