Genus Prosopium

Bear Lake whitefish - In appearance it is very similar to the closely related Bonneville whitefish P.

Brownback whitefish - Apparently, these fishes are remnants from the last ice age.

Frost fish - While it was once common, numbers have been decreasing in the last century due to a number of possible causes.

Bonneville cisco - The species is listed as a Wildlife Species of Concern by the Utah Division of Wildlife Resources.

Bonneville whitefish - In appearance it is very similar to the closely related Bear Lake whitefish P.

M - The body shape is superficially similar to the cyprinids, although it is distinguished by having the adipose fin of salmonids.