Melanistic Alligator Gar (rare!) — Was caught during a fishing trip and fortunately released back to the water easily. (It actually removed the hook itself; it never left the water thankfully)
I believe this to be a melanistic, or other variated coloration of a juvenile alligator gar. I believe this because of the overall profile and size of the head relative to its body.
Seen ~ 2000’ deep within submersible. Time and location are not exact.