Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1695174
| MD | Charles | Greenway Flats, Potomac River | 2019 |
02070010
| Middle Potomac-Anacostia-Occoquan | unknown |
1695179
| MD | Charles | Greenway Flats, Potomac River | 2019 |
02070010
| Middle Potomac-Anacostia-Occoquan | unknown |
1695182
| MD | Charles | Greenway Flats, Potomac River | 2019 |
02070010
| Middle Potomac-Anacostia-Occoquan | unknown |
1321003
| MD | Prince George's | In Potomac River at National Harbor near Woodrow Wilson Bridge | 2009 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |
1320962
| MD | Prince George's | Lake Artemesia | 2014 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |
1323004
| MD | Prince George's | Piscataway Creek, W of Piscataway Park | 2015 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |
230258
| MD | Prince Georges/C | Potomac River | 1987 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |