Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
243013
| OR | Clatsop | Columbia River, Blind Slough, Cathlamet Bay. | 2002 |
17080006
| Lower Columbia | established |
243019
| OR | Clatsop | Skipanon River pond, Warrenton. | 2003 |
17080006
| Lower Columbia | established |
243014
| OR | Clatsop | Youngs Bay, Wallooskea tideflat. | 2002 |
17080006
| Lower Columbia | established |
243018
| OR | Clatsop | Youngs River, lower estuary. | 2003 |
17080006
| Lower Columbia | established |
243017
| OR | Clatsop | Youngs River, upper estuary. | 2003 |
17080006
| Lower Columbia | established |
243020
| OR | Columbia | Crane Slough, Multnomah Channel. | 2003 |
17090012
| Lower Willamette | established |
243012
| OR | Columbia | Crane Slough, Suavie Island, Spatterdock patch | 2002 |
17090012
| Lower Willamette | established |