The eastern lampmussel has a discontinuous range from the Pee-Dee Drainage Basin north to the St. Lawrence Drainage Basin. In North Carolina, it has been documented from the Cape Fear, Neuse, Tar-Pamilico, Roanoke, and Chowan River basins.
Distribution by County: Waccamaw River Basin: Columbus Co. (Waccamaw River Basin, including Lake Waccamaw canals). Black River Basin: Pender Co. (Black River); Bladen Co. (Black River); Sampson Co. (Six Runs Creek Subbasin). Neuse River Basin: Wake Co. (Middle and Swift creek subbasins); Johnston Co. (Middle and Swift creek subbasins); Jones Co. (Trent River). Tar-Pamlico River Basin: Edgecombe Co. (Tar River, Swift Creek Subbasin); Nash Co. (Tar River, Swift Creek Subbasin); Franklin Co. (Sandy Creek Subbasin); Halifax Co. (Fishing Creek Subbasin); Warren Co. (Fishing Creek Subbasin). Chowan River Basin: Gates Co. (Chowan River); Chowan Co. (Chowan River). NOTE: All headwater areas that flow into these occupied habitats should receive special management.
The eastern lampmussel is a bradytictic
breeder. Ortmann (1919) found that the breeding season extends from August to the following August. Fish hosts are unknown.
General Life History For Mussels