Ruvettus luteolus, commonly known as the yellowtail barracuda, is a species of fish found in tropical and subtropical waters. It belongs to the family Sphyraenidae and is characterized by its elongated body, sharp teeth, and distinctive yellow stripe along its sides. This fish typically inhabits reefs and open ocean environments, where it preys on smaller fish and invertebrates. The yellowtail barracuda can grow up to 1.5 meters in length and is known for its speed and agility in the water. It is a popular target for both commercial and recreational fishing due to its firm, flavorful flesh. Conservation efforts are important to maintain healthy populations of this species in its natural habitat.