TY - RPRT TI - Molecular systematics of the critically-endangered North American spinymussels (Unionidae: Elliptio and Pleurobema ) and description of Parvaspina gen. nov. AU - Michael A. Perkins AU - Nathan A. Johnson AU - Michael M. Gangloff PY - 2017 DO - 10.1007/s10592-017-0924-z UR - https://pubs.usgs.gov/publication/70180374 ID - 70180374 ER -