Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1671916
| MD | Frederick | [No locality description provided] | 2018 |
02070008
| Middle Potomac-Catoctin | |
1677690
| MD | Montgomery | [No locality description provided] | 2017 |
02070008
| Middle Potomac-Catoctin | |
1673171
| MD | Montgomery | [No locality description provided] | 2019 |
02070008
| Middle Potomac-Catoctin | |
1679034
| MD | Montgomery | [No locality description provided] | 2020 |
02070008
| Middle Potomac-Catoctin | |
1655049
| MD | Montgomery | BBRd | 2020 |
02070008
| Middle Potomac-Catoctin | established |
1655047
| MD | Montgomery | Montgomery County, MD, USA | 2019 |
02070008
| Middle Potomac-Catoctin | established |
746233
| MD | Montgomery | Potomac River, 0.7 mile reach from E end of Swainsons Island upstream to head of Plummers Island and I-495 bridge, SW edge of Bethesda | 2010 |
02070008
| Middle Potomac-Catoctin | established |
280460
| MD | Montgomery | Potomac River, in the vicinity of Plummers Island (including C&O canal). | 1995 |
02070008
| Middle Potomac-Catoctin | established |
611317
| MD | Montgomery | Potomac River, Plummer's Island, 0.25 miles below I-495, SW of Bethesda | 1995 |
02070008
| Middle Potomac-Catoctin | established |
280461
| 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 |