Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
155283
| MD | Anne Arundel | Magothy River, Site Code: AA-N-160-215-97 | 1999 |
02060004
| Severn | unknown |
155281
| MD | Baltimore | Beaverdam | 1999 |
02060003
| Gunpowder-Patapsco | unknown |
155285
| MD | Caroline | sand pit near Federalsburg | 1999 |
02080109
| Nanticoke | unknown |
236775
| MD | Frederick | Pond at Hunting Creek Fisheries, near Thurmont, off Rt. 15 | 1999 |
02070009
| Monocacy | unknown |
155284
| MD | Garrett | New Germany Lake | 1999 |
02070002
| North Branch Potomac | unknown |
235973
| MD | Montgomery | Clopper Lake, near Germantown, Great Seneca Hwy & Clopper Rd | 1999 |
02070008
| Middle Potomac-Catoctin | unknown |
155282
| MD | Montgomery | Little Seneca Lake | 1999 |
02070008
| Middle Potomac-Catoctin | unknown |
235977
| MD | Washington | Little pool in Chesapeake and Ohio Canal National Historical Park, Hancock, near I-70. | 1999 |
02070004
| Conococheague-Opequon | unknown |