...
机译:Molecular systematics of the critically-endangered North American spinymussels (Unionidae: Elliptio and Pleurobema) and description of Parvaspina gen. nov.
Appalachian State Univ, Dept Biol, Boone, NC 28607 USA;
US Geol Survey, Wetland & Aquat Res Ctr, Gainesville, FL 32653 USA;