Subspecies
The kit fox has no recognized subspecies, although some populations have been proposed as subspecies.
The San Joaquin kit fox (Vulpes macrotis mutica) was formerly common in the San Joaquin Valley of California. Its 1990 population was estimated to be 7,000, and it is now considered endangered. On September 26, 2007, Wildlands Inc. announced the designation of the 684-acre (2.77 km2) Deadman Creek Conservation Bank, which is intended specifically to protect habitat of the San Joaquin kit fox. Causes of population declines include heavy competition with the red fox and habitat loss.
The desert kit fox (V. m. arsipus) lives in the Mojave Desert.
The Southern California kit fox (V. m. macrotis) was a population of kit foxes native to desert regions of Southern California which became extinct in 1903.
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