The ballyhoo or bally, Hemiramphus brasiliensis, is a baitfish of the halfbeak family (Hemiramphidae). It is similar to the Balao halfbeak (Hemiramphus balao). Ballyhoo are frequently used as cut bait and for trolling purposes by saltwater sportsmen. Ballyhoo can also be seen above the waters skimming the surface to escape from their predators. The appearance is similar to skipping stones on the water.