Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
162264
| MD | | Chesapeake Bay | 2000 |
02060001
| Upper Chesapeake Bay | established |
1456609
| MD | Garrett | Deep Creek Lake, cove to North Glade Run | 2018 |
05020006
| Youghiogheny | established |
1456630
| MD | Garrett | North Glade Cove, Deep Creek Lake | 2017 |
05020006
| Youghiogheny | established |
1676711
| MD | Prince George's | [No locality description provided] | 2021 |
02060006
| Patuxent | |
52351
| MD | Prince George's | Potomac River 1/4 mi below Woodrow Wilson [Memorial] Bridge (I-95 bridge west of Oxon Hill, MD) | 1974 |
02070010
| Middle Potomac-Anacostia-Occoquan | collected |