| Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
|
1672745
| MD | Montgomery | [No locality description provided] | 2019 |
02070008
| Middle Potomac-Catoctin | |
|
1678518
| MD | Montgomery | [No locality description provided] | 2019 |
02070008
| Middle Potomac-Catoctin | |
|
1679124
| MD | Montgomery | [No locality description provided] | 2020 |
02070008
| Middle Potomac-Catoctin | |
|
1675205
| MD | Montgomery | [No locality description provided] | 2020 |
02070008
| Middle Potomac-Catoctin | |
|
1674131
| MD | Montgomery | [No locality description provided] | 2020 |
02070008
| Middle Potomac-Catoctin | |
|
1730773
| MD | Montgomery | [No locality description provided] | 2020 |
02070008
| Middle Potomac-Catoctin | |
|
1739422
| MD | Montgomery | [No locality description provided] | 2024 |
02070008
| Middle Potomac-Catoctin | |
|
1739421
| MD | Montgomery | [No locality description provided] | 2024 |
02070008
| Middle Potomac-Catoctin | |
|
280446
| MD | Montgomery | Potomac River, upstream and downstream ends of Plummers Island and Swainson Island area, just E of I-495 crossing, W side of Bethesda | 2010 |
02070008
| Middle Potomac-Catoctin | established |
|
280451
| MD | Montgomery | Potomac River, upstream and downstream ends of Plummers Island and Swainson Island area, just E of I-495 crossing, W side of Bethesda | 2010 |
02070008
| Middle Potomac-Catoctin | established |
|
1655055
| MD | Montgomery | Westlake, MD 20817, USA | 2020 |
02070008
| Middle Potomac-Catoctin | established |