About this Collection Browse our library for maps and information about the Atlantic pigtoe threatened species status with section 4(d) rule and critical habitat designation. Image DetailsAtlantic pigtoe (Fusconaia masoni), a threatened mussel found in Virginia and North CarolinaFinal Rule, Federal Register NoticeSpecies Status AssessmentDownloadable shape files and text file with latitude and longitude coordinates for the critical habitat designation. Search in the Collection
