Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
166834
| OR | Columbia | Columbia River (R.M. 54) at Crims Island [~7 miles below Longview, WA] | 2006 |
17080003
| Lower Columbia-Clatskanie | established |
877349
| OR | Columbia | McBride Creek, at mouth | 2015 |
17080003
| Lower Columbia-Clatskanie | established |
261308
| OR | Columbia | Westport Slough, 4.85 mi upstream near Columbia River confluence near Westport, Oregon | 2009 |
17080003
| Lower Columbia-Clatskanie | established |