Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1670650
| MD | Baltimore | Masonville Cove | 2014 |
02060003
| Gunpowder-Patapsco | unknown |
1655051
| MD | Prince George's | Prince George's County, MD, USA | 2020 |
02070010
| Middle Potomac-Anacostia-Occoquan | established |
1670842
| MD | Somerset | Rumbly Pt, MD | 2015 |
02080111
| Pokomoke-Western Lower Delmarva | unknown |
1670572
| MD | Talbot | Harris Creek, Chesapeake Bay, MD | 2013 |
02060005
| Choptank | unknown |