fish genus - any of various genus of fish

Coregonidae, family Coregonidae - soft-finned fishes comprising the freshwater whitefishes; formerly included in the family Salmonidae

Menominee whitefish, Prosopium cylindraceum, round whitefish - bronze-backed whitefish of northern North America and Siberia

Prosopium williamsonii, Rocky Mountain whitefish - whitefish of the western United States and Canada