Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
31158
| DE | New Castle | Naaman Creek | 1991 |
02040202
| Lower Delaware | established |
283564
| NJ | Burlington | Back Brook near Hamilton | 2012 |
02040202
| Lower Delaware | established |
41980
| PA | Delaware | Delaware River near the PA/DE border | 1991 |
02040202
| Lower Delaware | established |
41981
| PA | Delaware | tidal portions of tributaries to the Delaware River, above the DE boundary | 1991 |
02040202
| Lower Delaware | established |
1654520
| PA | Philadelphia | Pennypack Creek, Philadelphia, PA, US | 2020 |
02040202
| Lower Delaware | established |