What is this 'unicorn' fish lurking in the Oklahoma water?

11-year-old catches exotic fish with human-like teeth in Oklahoma pond

Oklahoma Fishing Guide Catches Incredibly Rare All-Black “Unicorn Of A Paddlefish”

Oklahoma Crappie Fishing

Champ, Cryptid Wiki

Don't drink out of toilets. That's the lesson I learned on this trip. – The Bloggess

11-year-old catches exotic fish with human-like teeth in Oklahoma pond

File:Pumpkinseed on hook, Lake Harriet, Minneapolis 2018-07-01.jpg - Wikimedia Commons

Caught a non target fish today. It's a seaweed eater called Kala or Unicorn fish. They don't usually eat flies.

Champ, Cryptid Wiki

The Small Tooth Sawfish (Pristis pectinata) which first appeared between 59 and 62 million years ago and is now on the critically endangered list with perhaps as few as 200 in existence.