Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
279745
| OR | Clatsop | Columbia River estuary. | 2003 |
17080003
| Lower Columbia-Clatskanie | established |
279678
| OR | Columbia | Columbia River | 1981 |
17080003
| Lower Columbia-Clatskanie | established |
279676
| OR | Columbia | Columbia River | 1983 |
17080003
| Lower Columbia-Clatskanie | established |
274473
| OR | Columbia | Columbia River (R.M. 54) at Crims Island [~7 miles below Longview, WA] | 2003 |
17080003
| Lower Columbia-Clatskanie | established |
274520
| OR | Columbia | Columbia River (R.M. 54) at Crims Island [~7 miles below Longview, WA] | 2008 |
17080003
| Lower Columbia-Clatskanie | established |
253617
| OR | Columbia | Columbia River, lower | 1960 |
17080003
| Lower Columbia-Clatskanie | established |
877348
| OR | Columbia | McBride Creek, at mouth | 2015 |
17080003
| Lower Columbia-Clatskanie | established |