Gila bicolor snyderi The Owens tui chub (Siphateles bicolor snyderi) was described in 1973 as a subspecies of tui chub endemic to the Owens River Basin in Eastern California, United States.
[1][2] The Owens tui chub is distinguished from its closest relative, the Lahontan tui chub, by scales with a weakly developed or absent basal shield, 13 to 29 lateral and apical radii, also by the structure of its pharyngeal arches, the number of anal fin rays, 10 to 14 gill rakers, and 52 to 58 lateral line scales.
[1][2] Dorsal and lateral coloration varies from bronze to dusky green, grading to silver or white on the belly.
Genetically pure Owens tui chub occur in water that is cut off from the Owens River, such as at Sotcher Lake near Reds Meadow; springs near the Hot Creek Fish Hatchery in Mammoth Lakes, California;[4] and artificial ponds at the White Mountain Research Center and at Mule Spring in Inyo County.
In riverine and lacustrine or lake-like habitats where water temperatures fluctuate seasonally, the Owens tui chub spawns in spring and early summer, with spawning triggered by warming water temperatures.