title: Knifetooth dogfish
text: # Knifetooth dogfish
  
  The knifetooth dogfish (Scymnodon ringens), 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 metres (3.6 ft).
  
  