TY - RPRT TI - Morphological variation in glochidia shells of six species of Elliptio from Gulf of Mexico and Atlantic Coast drainages in the southeastern United States AU - C. A. O’Brien AU - J.D. Williams AU - M.A. Hoggarth PY - 2003 UR - https://pubs.usgs.gov/publication/70024642 ID - 70024642 ER -