Acrossocheilus iridescens is a species of cyprinid fish native to freshwater in southeastern China, northern Laos, and northern Vietnam. It reaches up to in standard length. Juveniles are pale yellowish with 5âÂÂ6 narrow dark bars, but in adults (over long) the dark bars are broad. It has sometimes included A. longipinnis as a subspecies, but recent authorities recognize them as separate species.