Considered a synonym of Gila robusta Baird & Girard, 1853
- Gilbert, Carter R.. 1998. "Type catalog of Recent and fossil North American Freshwater fishes: families Cyprinidae, Catostomidae, Ictaluridae, Centrarchidae and Elassomatidae". Florida Museum of Natural History, Special Publication No. 1. 1-284 (ffm00083)
Original description as Leuciscus zunnensis:
- Günther, Albert C. L. G. 1866. "Catalogue of the Physostomi, containing the families Salmonidae, Percopsidae, Galaxidae, Mormyridae, Gymnarchidae, Esocidae, Umbridae, Scombresocidae, Cyprinodontidae, in the collection of the British Museum". Catalogue of the fishes in the British Museum. 6:1-368 (ffm04521)