The ballyhoo halfbeak, ballyhoo, balahu, redtailed balao or yellowtail ballyhoo (Hemiramphus brasiliensis) is a baitfish of the halfbeak family (Hemiramphidae). It is similar to the Balao halfbeak (H. balao) in most features. Some are used for trolling by saltwater anglers. Some have caused ciguatera poisoning in humans. They have no spines on fins, but do have 13–14 rays of their dorsal fins and 12–13 rays on their anal fins.
thumb|left|In Cuban waters
References
McBride, Richard S., and Paul E. Thurman. 2003. Reproductive Biology of Hemiramphus brasiliensis and H. balao (Hemiramphidae): Maturation, Spawning Frequency, and Fecundity. Biol. Bull. 204: 57–67. [http://www.biolbull.org/content/204/1/57.full.pdf]
- Temporal Dynamics of Reproduction in Hemiramphus brasiliensis (Osteichthyes: Hemiramphidae)