Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1739709
| MD | Charles | [No locality description provided] | 2024 |
02070011
| Lower Potomac | |
234313
| MD | Charles | Allens Fresh | 1962 |
02070011
| Lower Potomac | established |
234312
| MD | Charles | Allens Fresh | 1963 |
02070011
| Lower Potomac | established |
234311
| MD | Charles | Allens Fresh, near eastern end of two HWY bridges | 1962 |
02070011
| Lower Potomac | established |
234309
| MD | Charles | Allens Fresh, near eastern most of 2 Hwy bridges | 1963 |
02070011
| Lower Potomac | established |
1321826
| MD | Charles | Mallows Bay, Potomac River | 2016 |
02070011
| Lower Potomac | established |
228434
| MD | Charles | Port Tobacco River | 1969 |
02070011
| Lower Potomac | established |
228433
| MD | Charles | Potomac River, mouth of River to Mattawoman Creek. | 1963 |
02070011
| Lower Potomac | established |
234310
| MD | Charles | Wicomico River, near west Hatton point | 1957 |
02070011
| Lower Potomac | established |
228654
| MD | Prince George's/ | Potomac River, from Haines Point, District of Columbia, to Marshall Hall | 1984 |
02070011
| Lower Potomac | established |
234304
| MD | St. Mary's | Choptico Bay, S side, near jct with Wicomico River | 1962 |
02070011
| Lower Potomac | established |
234314
| MD | St. Mary's | Herring Creek, a cove, near Tall Timbers | 1962 |
02070011
| Lower Potomac | established |
234303
| MD | St. Mary's | Wicomico River, mouth of; St. Catherine's Sound | 1962 |
02070011
| Lower Potomac | established |
234302
| MD | St. Mary's | Wicomico River, S bank off second point above buoy C13 | 1962 |
02070011
| Lower Potomac | established |