knifetooth dogfish (Scymnodon ringens) Knifetooth dogfish, Scymnodon ringens. From plate 4 of Oceanic Ichthyology by G. Brown Goode and Tarleton H. Bean, published 1896.
Location: https://commons.wikimedia.org/wiki/File:Scymnodon_ringens.jpg
The knifetooth dogfish, is a harmless sleeper shark of the family Somniosidae, found in the eastern Atlantic, from Scotland to Spain, Portugal, and Senegal, and the southwest Pacific from New Zealand, between latitudes 58°N and 15°N, at depths of between 200 and 1,600 m. Its length is up to 1.1 m. Order: Squaliformes, Family: Somniosidae.
