Siphateles obseus. Winnemucca Lake, Nev.
Synonyms: Algansea obesa Girard, 1856; Gila bicolor obesa (Girard, 1856)
Author John Otterbein Snyder (1867–1943)
Source/Photographer Snyder, John Otterbein (1918) Fishes of the Lahontan System of Nevada and Northeastern California, Bulletin of the United States Bureau of Fisheries, vol.35, 1915-1916, Washington, DC: Government Printing Office
Source: https://commons.wikimedia.org/wiki/File:FMIB_38977_Siphateles_obseus_Winnemucca_Lake,_Nev.jpeg

The tui chub (Siphateles bicolor) is a cyprinid fish native to western North America. Widespread in many areas, it is an important food source for other fish, including the cutthroat trout.

Order: Cypriniformes
Family: Leuciscidae
Subfamily: Laviniinae
Genus: Siphateles
Species: Siphateles bicolor (Girard, 1856)
Synonyms
- Algansea bicolor Girard, 1856
- Gila bicolor (Girard, 1856)
- Algansea formosa Girard, 1856
- Algansea obesa Girard, 1856
- Algansea antica Cope, 1865
- Siphateles vittatus Cope, 1883
- Leucus dimidiatus Cope, 1883
- Leucus olivaceus Cope, 1883
- Myloleucus thalassinus Cope, 1883
- Rutilus columbianus Snyder, 1908
- Siphateles columbianus (Snyder, 1908)
- Rutilus oregonensis Snyder, 1908