Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1592662
| MD | Harford | In a storm water pond in major's choice neighborhood | 2019 |
02060003
| Gunpowder-Patapsco | established |
1695222
| MD | Kent | Sassafras River, Dyer Creek | 2019 |
02060002
| Chester-Sassafras | unknown |
1695224
| MD | Kent | Sassafras River, Lloyds Creek | 2019 |
02060002
| Chester-Sassafras | unknown |
1695225
| MD | Kent | Sassafras River, Lloyds Creek | 2019 |
02060002
| Chester-Sassafras | unknown |
1695223
| MD | Kent | Sassafras River, Woodland/Island Creek | 2019 |
02060002
| Chester-Sassafras | unknown |