The Yaqui chub (Gila purpurea) is a species of freshwater fish in the Cyprinidae family. It is found in northern Mexico and the United States. The Yaqui chub is a medium-sized minnow fish that historically occurred in streams of Rios Matape, Sonora, and the Yaqui systems of Sonora, Mexico. It is one of the five species of the Gila genus in Arizona. The Yaqui chub is closely related to Gila ditaenia (of Sonora, Mexico), and Gila orcutti (of the Los Angeles Plain in California); and shares several physical characteristics with the Gila orcutti (Arroyo chub), but proves different by having a black wedge near the base of the caudal fin. Order: Cypriniformes, Family: Cyprinidae, Species: Gila purpurea (Girard, 1856)
