| Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
|
40476
| OR | Douglas | lower Umpqua River and estuary | 1976 |
17100303
| Umpqua | established |
|
265303
| OR | Douglas | Smith River, Bolon Island | 1998 |
17100303
| Umpqua | established |
|
265304
| OR | Douglas | Smith River, Lower Drift Take out | 1998 |
17100303
| Umpqua | established |
|
265305
| OR | Douglas | Smith River, Noel Ranch Boat Launch | 1998 |
17100303
| Umpqua | established |
|
265306
| OR | Douglas | Smith River, Riverside | 1998 |
17100303
| Umpqua | established |
|
40601
| OR | Douglas | Umpqua River | 1945 |
17100303
| Umpqua | established |
|
41926
| OR | Douglas | Umpqua River | 1970 |
17100303
| Umpqua | established |
|
41032
| OR | Douglas | Umpqua River | 1973 |
17100303
| Umpqua | established |
|
40459
| OR | Douglas | Umpqua River | 1979 |
17100303
| Umpqua | established |
|
265317
| OR | Douglas | Umpqua River, Rainbow Plaza | 1998 |
17100303
| Umpqua | established |
|
265319
| OR | Douglas | Umpqua River, Salmon Harbor East | 1998 |
17100303
| Umpqua | established |
|
265320
| OR | Douglas | Umpqua River, Salmon Harbor West | 1998 |
17100303
| Umpqua | established |
|
265323
| OR | Douglas | Umpqua River, Scottsburg Park | 1998 |
17100303
| Umpqua | established |
|
265326
| OR | Douglas | Umpqua River, Umpqua Wayside State Park | 1998 |
17100303
| Umpqua | established |