| Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
|
4195
| CA | | Trinidad Lighthouse (off), between San Francisco and Cape Disappointment, WA | 1888 |
18010102
| Mad-Redwood | failed |
|
621430
| CA | Los Angeles | San Pedro Bay | 1950 |
18070106
| San Gabriel | failed |
|
4206
| NE | Douglas | Elkhorn River near Omaha | 1873 |
10220003
| Lower Elkhorn | failed |
|
4190
| UT | | Great Salt Lake | 1874 |
16020310
| Great Salt Lake | failed |
|
4205
| WA | Grays Harbor | Gray's Harbor, at Peterson Point near entrance to harbor. | 1892 |
17100105
| Grays Harbor | failed |
|
4204
| WA | Grays Harbor | Hoquiam River, at mouth, Grays Harbor | 1892 |
17100105
| Grays Harbor | failed |
|
4202
| WA | Jefferson | Port Townsend Bay | 1896 |
17110019
| Puget Sound | failed |
|
4200
| WA | Jefferson | Puget Sound near Port Townsend. | 1889 |
17110019
| Puget Sound | failed |
|
4199
| WA | Pacific | Shoalwater (Willapa) Bay | 1889 |
17100106
| Willapa Bay | failed |
|
4203
| WA | Pacific | Shoalwater (Willapa) Bay | 1896 |
17100106
| Willapa Bay | failed |