Robuta

https://mollusk.inhs.illinois.edu/resources/field-guide-to-freshwater-mussels-of-the-midwest/freshwater-mussels-species-accounts/wabash-pigtoe/ Wabash pigtoe | INHS Mollusk Collection | Illinois Natural History Survey | Illinois natural history wabash mollusk collection illinois https://www.fws.gov/media/wabash-pigtoe-8 Wabash pigtoe | FWS.gov wabash fws https://www.fws.gov/media/wabash-pigtoe-22 Wabash pigtoe | FWS.gov wabash fws https://www.fws.gov/media/round-pigtoe-13 Round pigtoe | FWS.gov round fws https://www.fws.gov/story/2009-06/service-proposes-endangered-species-status-and-critical-habitat-designations-georgia Service Proposes Endangered Species Status and Critical Habitat Designations for the Georgia Pigtoe... https://www.fws.gov/media/tennessee-pigtoe-outside Tennessee pigtoe (outside) | FWS.gov tennessee outside fws https://www.fws.gov/media/round-pigtoe-7 Round pigtoe | FWS.gov round fws