IUCN threat status:

Extinct (EX)


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Range Description

Its historical range included the upper Santa Cruz River basin (Gila River drainage), Arizona and probably Sonora (Minckley et al. 2002, Minckley and Marsh 2009). Attempts to maintain captive stock failed in 1971 (Miller et al. 1989).


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© International Union for Conservation of Nature and Natural Resources

Source: IUCN

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