Wikipedia
Sawshark
The sawsharks or saw sharks are an order (Pristiophoriformes) of sharks bearing long, blade-like snouts edged with teeth, which they use to slash and disable their prey. Most occur in waters from South Africa to Australia and Japan, at depths of and below; in 1960, the Bahamas sawshark was discovered in the deeper waters (640 m to 915 m) of the northwestern Caribbean.