Prosopium

4 species

Prosopium is a genus of freshwater whitefishes found in North America and parts of eastern Russia. It contains three fairly widespread species: the round whitefish, the pygmy whitefish, and the mountain whitefish. The remaining species, the Bonneville cisco, the Bonneville whitefish, and the Bear Lake whitefish are endemic to Bear Lake.

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Mountain whitefish

Prosopium williamsoni

The mountain whitefish (Prosopium williamsoni) is one of the most widely distributed salmonid fish of western North America. It is found from the Mackenzie River drainage in Northwest Territories, Canada through western Canada and the northwestern...

Round whitefish

Prosopium cylindraceum

The round whitefish (Prosopium cylindraceum) is a freshwater species of fish that is found in lakes from Alaska to New England, including the Great Lakes. It has an olive-brown back with light silvery sides and underside and its length is generally...

Pygmy whitefish

Prosopium coulterii

The pygmy whitefish (Prosopium coulterii) is a freshwater whitefish of the genus Prosopium in the family Salmonidae. Found in the mountain streams and lakes in western North America, it also has isolated populations in Lake Superior and in Ekityki...

Bonneville cisco

Prosopium gemmifer

The Bonneville cisco (Prosopium gemmifer) is a species of cisco endemic to Bear Lake along the Utah-Idaho border, United States. It is one of three species of whitefish endemic to Bear Lake, the others being the Bear Lake whitefish and the...