Family Fistulariidae is a term used to refer to a group of fishes commonly known as cornetfish or trumpetfish. These elongated and slender fishes are found in tropical and subtropical oceans around the world. Their unique shape and size have made them a popular target for aquarium owners, but they are also an important part of the marine ecosystem. Synonyms for the group include Syngnathidae, Centriscidae, and Aulostomidae. Cornetfishes are known for their ability to change color and blend with their surroundings, making them skilled predators that feed on small fishes and crustaceans. Their unique appearance and behavior make them a fascinating subject for marine biologists and avid divers alike.