Prosopium

Fish species are lake trout, Arctic grayling, round whitefish (Prosopium cylindraceum), burbot, and slimy sculpin (Cottus cognatus), which feed on benthic chironomid larvae and snails, the latter controlling epilithic algae in the lake.

Effects of climate change on hydro-ecology of contributing basins in the Arctic 2009

European cisco, Coregonus albula cisco, Coregonus artedi masu salmon, Oncorhynchus masou round whitefish, Prosopium cylindraceum white-spotted char, Salvelinus leucomaenis inconnu, Stenodus leucichthys

Trout and Salmon of North America Robert J. Behnke 2002

Also like trout and salmon, Prosopium species have a single nostril flap.

Trout and Salmon of North America Robert J. Behnke 2002

Thus we might surmise that Prosopium whitefishes are evolutionarily stable—that is, resistant to change through long periods of time.

Trout and Salmon of North America Robert J. Behnke 2002

Classification of the species in the genus Prosopium is much less controversial.

Trout and Salmon of North America Robert J. Behnke 2002

There is no doubt, however, that the Bonneville cisco, the Bonneville whitefish, and the Bear Lake whitefish all endemic only to Bear Lake are whitefishes of the genus Prosopium.

Trout and Salmon of North America Robert J. Behnke 2002

In the genus Prosopium, there are three widely distributed species of whitefishes, only one of which, the round whitefish, might be confused with the mountain whitefish.

Trout and Salmon of North America Robert J. Behnke 2002

DESCRIPTIONThe mountain whitefish—with its rounded body form and a small mouth that lacks teeth—typifies the genus Prosopium, the most primitive genus of whitefishes.

Trout and Salmon of North America Robert J. Behnke 2002

Bonneville cisco, Prosopium gemmifer lake whitefish, Coregonus clupeaformis

Trout and Salmon of North America Robert J. Behnke 2002

Three of the six recognized species in the genus Prosopium occur in a single lake.

Trout and Salmon of North America Robert J. Behnke 2002