. "Coregonus oregonius (Jordan & Snyder, 1909)" . . "Coregonus williamsoni (Jordan & Snyder, 1909)" . . . . . "iucn3.1" . "Prosopium oregonium (Jordan & Snyder, 1909)" . "NE" . "Mountain whitefish"@en . . "The mountain whitefish (Prosopium williamsoni) is one of the most widely distributed salmonid fish of western North America."@en . . .