Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1701854
| MD | Anne Arundel | [No locality description provided] | 2022 |
02060006
| Patuxent | |
234850
| MD | Anne Arundel | Fresh Pond (Angel's Bog) along Rt. 177 near Lake Shore | 1998 |
02060003
| Gunpowder-Patapsco | extirpated |
1677425
| MD | Baltimore | [No locality description provided] | 2021 |
02060003
| Gunpowder-Patapsco | |
1739009
| MD | Baltimore | [No locality description provided] | 2023 |
02060003
| Gunpowder-Patapsco | |
1655038
| MD | Baltimore | Bird River, Essex, MD, US | 2020 |
02060003
| Gunpowder-Patapsco | established |
1675670
| MD | Montgomery | [No locality description provided] | 2020 |
02070010
| Middle Potomac-Anacostia-Occoquan | |
1675708
| MD | Montgomery | [No locality description provided] | 2020 |
02070010
| Middle Potomac-Anacostia-Occoquan | |
1675744
| MD | Montgomery | [No locality description provided] | 2020 |
02070010
| Middle Potomac-Anacostia-Occoquan | |
1676222
| MD | Montgomery | [No locality description provided] | 2021 |
02070008
| Middle Potomac-Catoctin | |
1701760
| MD | Montgomery | [No locality description provided] | 2022 |
02070010
| Middle Potomac-Anacostia-Occoquan | |
1676506
| MD | Worcester | [No locality description provided] | 2021 |
02040303
| Chincoteague | |