Alligator gar

Alligator Gar ("Gator Gar"), Atractosteus spatula, is a primitive ray-finned fish. Unlike other gars, the mature Alligator Gar possesses a dual row of large teeth in the upper jaw. Its name derives from the alligator-like appearance of these teeth along with the fish's elongated snout...

Alligator Gar are found in the Lower Mississippi River Valley and Gulf Coast states of the Southeastern United States and Mexico as far south as Veracruz... They have also been known historically to come as far north as central Kansas, Nebraska, Kentucky, Ohio, Iowa, and west-central Illinois. 

Photo ("10 feet (3.0 m) alligator gar caught at Moon Lake, Mississippi in 1910"): D. Franklin (Library Services, American Museum of Natural History).