"Dreissena rostriformis bugensis Andrusov, 1897" "Dreissena rostriformis bugensis Andrusov, 1897" quagga mussels U.S. Geological Survey http://nas.er.usgs.gov/queries/factsheet.aspx?speciesid=95 US Geological Survey quagga quagga Quagga Mussel Fact Sheet the Great Lakes and other areas http://nas.er.usgs.gov/queries/factsheet.aspx?speciesid=95 US Geological Survey Fact Sheet quagga mussel