Mohave tui chub

The Mohave tui chub (Gila bicolor mohavensis) is an endangered chub originally found only in the Mojave River. Even though named after the Mojave River, the fish's name is normally spelled "Mohave". It was named by ichthyologist Robert Rush Miller.

The fish managed to end up in Mojave Chub Spring (MC Spring), possibly from flooding from the Mojave River.

In their original Mojave River habitat, the Mohave chub have hybridized with the coastal chub (Gila orcutti); because of this, the Mojave Chub Spring is now the main source for all genetically "pure" Mohave chubs. Other locations in California have been used as refuges for this pure variety by intentionally introducing the fish into the location.