site. Links to various papers and blurbs on other invasive species. CISR Quagga Mussels Info - A brief fact sheet on information on Quagga and Zebra Mussels. GLANSIS Species Fact Sheet, United States Geological Survey Species Profile - Quagga Mussel (Dreissena bugensis), National Invasive Species Information Center, United States National Agricultural Library. Lists general information and resources for Quagga Mussel. Dreissenidae Molluscs described in 1897