prosopium : Idioms & Phrases
genus prosopium
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noun whitefishes
Prosopium.
WordNet
prosopium cylindraceum
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noun a whitefish with a bronze back; of northern North America and Siberia
Menominee whitefish; round whitefish.
WordNet
prosopium williamsonii
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noun whitefish of the western United States and Canada
Rocky Mountain whitefish.