| Catostomidae (Suckers), subfamily: Catostominae |
| 91 cm TL (male/unsexed) |
|
demersal; freshwater, potamodromous |
| North America: Formerly throughout medium to large rivers of Colorado River basin from Wyoming and Colorado in USA to Baja California in Mexico. Presently known only above Grand Canyon and in Lakes Mead, Mohave and Havasu on lower Colorado River in USA. |
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| Occurs in silt-bottomed to rock-bottomed backwaters near strong current and deep pools in medium to large rivers, and impoundments. |
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Critically Endangered (CR); Date assessed: 12 April 2012 (A2bce) Ref. (130435)
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| harmless |
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