Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1522800
| MD | Baltimore | Bird River, Cove adjacent to Railroad Creek | 2018 |
02060003
| Gunpowder-Patapsco | established |
1473576
| MD | Kent | [Lloyd Creek] As far up into the headwaters as a canoe could get | 2018 |
02060002
| Chester-Sassafras | established |
1473575
| MD | Kent | [Lloyd Creek] North side of small island | 2018 |
02060002
| Chester-Sassafras | established |
1522797
| MD | Kent | Headwaters of Lloyds Creek | 2018 |
02060002
| Chester-Sassafras | established |
1522801
| MD | Kent | Headwaters, Dyer Creek | 2018 |
02060002
| Chester-Sassafras | established |
1522799
| MD | Kent | Lloyds Creek | 2018 |
02060002
| Chester-Sassafras | established |
1522798
| MD | Kent | Tidal Pond, Sassafras River NRMA | 2018 |
02060002
| Chester-Sassafras | established |