Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
163633
| ME | | Kennebec River, lower | 2002 |
01050003
| St. George-Sheepscot | established |
163632
| ME | | Kennebec River, lower, and Merrymeeting Bay (above Brunswick) | 2001 |
01050003
| St. George-Sheepscot | established |
1613845
| ME | Lincoln | Kennebec River, northeast side of Swan Island | 2019 |
01030003
| Lower Kennebec | established |
163631
| ME | Penobscot | commercial American eel tanks in Passadumkeag, adjacent to the Penobscot River north of Old Town | 1980 |
01020005
| Lower Penobscot | unknown |