Alligator Gar Fish

Though the Alligator Gar prefers slow-moving waters of rivers, bayous, and oxbows throughout most of the year, it appears to need spring time inundated floodplain fields or wetland vegetation in order to spawn.
Taxonomic history
Until relatively recently all gars have generally been classified in the genus Lepisosteus Lacepède, 1803. The Alligator Gar had been given the name Atractosteus adamantinus by the eccentric Constantine Samuel Rafinesque-Schmaltz in 1818, and for a long time Atractosteus was simply viewed as a junior synonym of Lepisosteus. E. O. Wiley resurrected this genus in 1976, in his work The phylogeny and biogeography of fossil and Recent Gars.
Based on Wiley's work, after 1976 the Gars were officially split into Lepisosteus and Atractosteus, and ever since then zoos, aquarium books, anglers, and so on have been gradually catching up with the proper terminology.