Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
231496
| WA | Clark | Caterpillar Slough | 1995 |
17080003
| Lower Columbia-Clatskanie | established |
1525545
| WA | Clark | Caterpillar Slough | 1995 |
17080003
| Lower Columbia-Clatskanie | established |
242680
| WA | Clark | Columbia River at Ridgefield | 2003 |
17080003
| Lower Columbia-Clatskanie | established |
1525546
| WA | Clark | Vancouver Lake | 2007 |
17080003
| Lower Columbia-Clatskanie | established |
1529154
| WA | Clark | Vancouver Lake | 2007 |
17080003
| Lower Columbia-Clatskanie | established |
1526753
| WA | Cowlitz | Kress Lake | 2001 |
17080003
| Lower Columbia-Clatskanie | established |
1525547
| WA | Cowlitz | Kress Lake | 2001 |
17080003
| Lower Columbia-Clatskanie | established |
237709
| WA | Cowlitz | Kress Lake, on the Kalama River | 2001 |
17080003
| Lower Columbia-Clatskanie | established |
1526916
| WA | Wahkiakum | Columbia River at Cathlamet | 2005 |
17080003
| Lower Columbia-Clatskanie | established |
237687
| WA | Wahkiakum | Columbia River at Cathlamet | 2005 |
17080003
| Lower Columbia-Clatskanie | established |
237689
| WA | Wahkiakum | Columbia River at Skamokawa | 1996 |
17080003
| Lower Columbia-Clatskanie | established |
1525712
| WA | Wahkiakum | Columbia River at Skamokawa | 1996 |
17080003
| Lower Columbia-Clatskanie | established |
1529319
| WA | Wahkiakum | Puget Island Sloughs | 2005 |
17080003
| Lower Columbia-Clatskanie | established |