Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
40696
| OR | | Columbia River | 1979 |
17080003
| Lower Columbia-Clatskanie | established |
40612
| OR | | Columbia River | 1980 |
17080003
| Lower Columbia-Clatskanie | established |
40398
| OR | | Columbia River, lower | 1980 |
17080003
| Lower Columbia-Clatskanie | established |
40874
| OR | Columbia | Columbia River, mainstem | 2001 |
17080003
| Lower Columbia-Clatskanie | established |
295922
| OR | Columbia | Columbia River, mainstem | 2009 |
17080003
| Lower Columbia-Clatskanie | established |
297312
| OR | Columbia | Columbia River, mainstem | 2009 |
17080003
| Lower Columbia-Clatskanie | established |
297315
| OR | Columbia | Columbia River, mainstem | 2013 |
17080003
| Lower Columbia-Clatskanie | established |
295925
| OR | Columbia | Columbia River, mainstem | 2013 |
17080003
| Lower Columbia-Clatskanie | established |
41756
| OR | Multnomah | Columbia River, mainstem | 2001 |
17080003
| Lower Columbia-Clatskanie | established |