| Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
|
1395932
| OR | Clatsop | Columbia River | 2000 |
17080003
| Lower Columbia-Clatskanie | |
|
1395908
| OR | Columbia | Bradbury Slough | 1999 |
17080003
| Lower Columbia-Clatskanie | |
|
1395943
| OR | Columbia | Clatskanie River | 1999 |
17080003
| Lower Columbia-Clatskanie | |
|
1395880
| OR | Columbia | Columbia River | 2000 |
17080003
| Lower Columbia-Clatskanie | |
|
1395923
| OR | Columbia | Columbia River | 2000 |
17080003
| Lower Columbia-Clatskanie | |
|
1395909
| OR | Columbia | Columbia River | 2000 |
17080003
| Lower Columbia-Clatskanie | |
|
1395899
| OR | Columbia | Columbia River | 2000 |
17080003
| Lower Columbia-Clatskanie | |
|
1395898
| OR | Columbia | Columbia River | 2000 |
17080003
| Lower Columbia-Clatskanie | |
|
1395895
| OR | Columbia | Columbia River | 2000 |
17080003
| Lower Columbia-Clatskanie | |
|
1395897
| OR | Columbia | Columbia River | 2000 |
17080003
| Lower Columbia-Clatskanie | |
|
1395913
| OR | Columbia | Columbia River | 2000 |
17080003
| Lower Columbia-Clatskanie | |
|
1395926
| OR | Columbia | Columbia River | 2000 |
17080003
| Lower Columbia-Clatskanie | |
|
1395884
| OR | Columbia | Columbia River | 2000 |
17080003
| Lower Columbia-Clatskanie | |
|
51676
| OR | Columbia | Columbia River at the Trojan Nuclear Plant, 67.2 km N of Portland | 1981 |
17080003
| Lower Columbia-Clatskanie | established |
|
1395894
| OR | Columbia | Wallace Slough | 1999 |
17080003
| Lower Columbia-Clatskanie | |
|
1395984
| OR | Multnomah | Columbia River | 2000 |
17080003
| Lower Columbia-Clatskanie | |
|
1395987
| OR | Multnomah | Columbia River | 2000 |
17080003
| Lower Columbia-Clatskanie | |
|
1395944
| OR | Multnomah | Columbia River | 2000 |
17080003
| Lower Columbia-Clatskanie | |
|
1395931
| OR | Multnomah | Columbia River | 2000 |
17080003
| Lower Columbia-Clatskanie | |
|
1395885
| OR | Multnomah | Columbia River | 2000 |
17080003
| Lower Columbia-Clatskanie | |
|
1395959
| OR | Multnomah | Columbia River | 2000 |
17080003
| Lower Columbia-Clatskanie | |
|
51668
| OR | Multnomah | Columbia River, Sauvie Island, just below confluence with Willamette River, approximately 5 km downstream from Portland | 1943 |
17080003
| Lower Columbia-Clatskanie | established |