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 |
243016
| WA | Wahkiakum | Columbia River, Grays Bay, Grays River mouth. | 2003 |
17080006
| Lower Columbia | established |
243015
| WA | Wahkiakum | Grays River, near Rosburg | 2002 |
17080006
| Lower Columbia | established |