The Alligator Gar (“Gator Gar”), Atractosteus spatula, is a primitive ray-finned fish. Its name derives from the alligator-like appearance of teeth along with the fish's elongated snout. Along with its status as the largest species of Gar, the Alligator Gar is the largest exclusively freshwater fish found in North America, measuring 8 to 10 feet (2.4 to 3.0 m) and weighing at least 200 lb (91 kg) at maturity.