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Temporal range: Late Miocene to Recent[1]
Prosopium cylindraceum.jpg
Prosopium cylindraceum
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Salmoniformes
Family: Salmonidae
Subfamily: Coregoninae
Genus: Prosopium
D. S. Jordan, 1878

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.


There are currently six recognized species in this genus:[2]


  1. ^ Sepkoski, Jack (2002). "A compendium of fossil marine animal genera". Bulletins of American Paleontology. 363: 1–560. Retrieved 8 January 2008. 
  2. ^ Froese, Rainer, and Daniel Pauly, eds. (2012). Species of Prosopium in FishBase. February 2012 version.