Catostomus insignis Baird & Girard, 1854
Sonora sucker
Catostomus insignis
photo by The Native Fish Conservancy

Family:  Catostomidae (Suckers), subfamily: Catostominae
Max. size:  80 cm TL (male/unsexed)
Environment:  demersal; freshwater
Distribution:  North America: Gila and Bill Williams River systems (in Colorado River drainage) in New Mexico and Arizona, USA, and northern Sonora, Mexico. Common but decreasing in southern half of range.
Biology:  Inhabits rocky pools of creeks and small to medium rivers. Large individuals occur in rocky riffles and runs at night.
IUCN Red List Status: Least Concern (LC); Date assessed: 12 October 2018 Ref. (126983)
Threat to humans:  harmless

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