The Longnose Gar (Lepisosteus osseus) is a slender, elongated fish found in North America's rivers, lakes, and reservoirs. They can grow up to 6 feet in length and are recognizable... The Longnose Gar (Lepisosteus osseus) is a slender, elongated fish found in North America's rivers, lakes, and reservoirs. They can grow up to 6 feet in length and are recognizable by their long, narrow snout filled with sharp teeth. Longnose Gars are surface dwellers and skilled predators, feeding primarily on fish but also on crustaceans and insects. Their bony scales and air-breathing ability make them resilient in various environmental conditions.Click here to read more about Longnose Gar.