| Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
|
157010
| WA | | coastal waters | 1997 |
17100102
| Queets-Quinault | established |
|
50250
| WA | | Puget Sound drainage | 1947 |
17110019
| Puget Sound | established |
|
52476
| WA | | Puget Sound, southern portion | 1929 |
17110019
| Puget Sound | established |
|
164176
| WA | | Willapa National Wildlife Refuge | 2005 |
17100106
| Willapa Bay | established |
|
1884001
| WA | Jefferson | Hood Canal, Brinnon public tidelands | 2024 |
17110018
| Hood Canal | |
|
52477
| WA | Pacific | Willapa Bay | 1948 |
17100106
| Willapa Bay | established |
|
50252
| WA | Pacific | Willapa Bay | 1948 |
17100106
| Willapa Bay | established |
|
261823
| WA | Pacific | Willapa Bay, Bay Center | 2002 |
17100106
| Willapa Bay | established |
|
261825
| WA | Pacific | Willapa Bay, Mid Sands | 2002 |
17100106
| Willapa Bay | established |
|
261826
| WA | Pacific | Willapa Bay, Nahcotta Channel W. | 2003 |
17100106
| Willapa Bay | established |
|
261829
| WA | Pacific | Willapa Bay, Nemah | 2003 |
17100106
| Willapa Bay | established |
|
241209
| WA | Pacific | Willapa Bay, Omeara Point | 2000 |
17100106
| Willapa Bay | collected |
|
261827
| WA | Pacific | Willapa Bay, Parcel A | 2002 |
17100106
| Willapa Bay | established |
|
261831
| WA | Pacific | Willapa Bay, Peterson | 2002 |
17100106
| Willapa Bay | established |
|
261824
| WA | Pacific | Willapa Bay, Stackpole | 2006 |
17100106
| Willapa Bay | established |
|
50251
| WA | Thurston | Oyster Bay, Puget Sound | 1948 |
17110019
| Puget Sound | established |