1. Department of Biological Sciences, Université de Montréal, Quebec, Canada
2. Centre de la Science de la Biodiversité du Québec, Université de Montréal, Quebec, Canada
3. Dipartimento di Scienze Biologiche, Geologiche ed Ambientali, University of Bologna, Italy
4. Wetland and Aquatic Research Center, U.S. Geological Survey, Gainesville, Florida, USA
5. Minnesota Department of Natural Resources, Center for Aquatic Mollusk Programs, Lake City, Minnesota, USA
6. Department of Biology, Acadia University, Wolfville, Nova Scotia, Canada