Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
4359
| OR | Coos | Coos Bay | 1997 |
17100304
| Coos | established |
4879
| OR | Coos | Coos Bay | 1998 |
17100304
| Coos | established |
4376
| OR | Lincoln | Yaquina Bay [Newport, OR] | 1998 |
17100204
| Siletz-Yaquina | established |
4880
| OR | Lincoln | Yaquina Bay [Newport, OR] | 1998 |
17100204
| Siletz-Yaquina | established |
157034
| WA | | coastal waters | 1997 |
17100102
| Queets-Quinault | established |
1737047
| WA | Clallam | Near La Push, WA | 2024 |
17100101
| Hoh-Quillayute | established |
1401067
| WA | Clallam | Strait of Juan de Fuca, at Dungeness Spit National Wildlife Refuge [near Dungeness] | 2017 |
17110020
| Dungeness-Elwha | unknown |
4364
| WA | Grays Harbor | Grays Harbor | 1996 |
17100105
| Grays Harbor | established |
4878
| WA | Grays Harbor | Grays Harbor | 1998 |
17100105
| Grays Harbor | established |
1695571
| WA | Kitsap | Nick's Lagoon, Hood Canal, near Seabeck | 2022 |
17110018
| Hood Canal | unknown |
1695572
| WA | Kitsap | Nick's Lagoon, Hood Canal, near Seabeck | 2022 |
17110018
| Hood Canal | unknown |
1711909
| WA | Pacific | Nahcotta small boat basin off Sandridge Rd. | 2023 |
17100106
| Willapa Bay | |
4358
| WA | Pacific | Willapa Bay | 1998 |
17100106
| Willapa Bay | established |
4875
| WA | Pacific | Willapa Bay | 1998 |
17100106
| Willapa Bay | established |
4876
| WA | Pacific | Willapa Bay | 1998 |
17100106
| Willapa Bay | established |
163778
| WA | Pacific | Willapa Bay | 1999 |
17100106
| Willapa Bay | established |
163779
| WA | Pacific | Willapa Bay | 2000 |
17100106
| Willapa Bay | established |
163780
| WA | Pacific | Willapa Bay | 2001 |
17100106
| Willapa Bay | established |
163781
| WA | Pacific | Willapa Bay | 2001 |
17100106
| Willapa Bay | established |
4877
| WA | Pacific | Willapa Bay at Oysterville, WA [west shore of Bay]. | 1998 |
17100106
| Willapa Bay | established |
4360
| WA | Pacific | Willapa Bay near Stackpole, WA (Leadbetter Point) | 1998 |
17100106
| Willapa Bay | established |
1337416
| WA | San Juan | Strait of Juan de Fuca, at San Juan Island | 2016 |
17110003
| San Juan Islands | established |
1321828
| WA | San Juan | Westcott Bay, San Juan Island [Puget Sound] | 2016 |
17110003
| San Juan Islands | unknown |
1687296
| WA | Whatcom | Lummi Nation Sea Pond | 2022 |
17110004
| Nooksack | established |