Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
4770
| OR | Coos | Coos Bay | 1950 |
17100304
| Coos | established |
4261
| OR | Coos | Coos Bay, South Slough National Estuarine Research Reserve | 1989 |
17100304
| Coos | established |
4773
| OR | Douglas | Umpqua River | 1978 |
17100303
| Umpqua | established |
1474326
| OR | Lane | Siuslaw River, North Fork | 2018 |
17100206
| Siuslaw | unknown |
4772
| OR | Lincoln | Yaquina Bay [Newport, OR] | 1978 |
17100204
| Siletz-Yaquina | established |
4771
| OR | Tillamook | Netarts Bay (near Netarts, OR) | 1976 |
17100203
| Wilson-Trusk-Nestuccu | established |