Naucrates Ductor, also known as the Pilotfish, is a small fish commonly found swimming in the open oceans. Various names have been given to this fascinating creature that has a unique behavior of swimming alongside larger fish such as sharks, rays, or turtles, providing them with companionship and protection from parasites. Synonyms for Naucrates Ductor include Pilotfish, Pilot, Leadfish, Sea Pike, and Shark Pilot. These synonyms describe the fish's habit of guiding other species and leading them towards feeding opportunities. These fish have a unique relationship with larger marine life, and their presence in the ocean is crucial to maintaining a healthy ecosystem.