Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
268059
| WA | Okanogan | Oxbow lakes on the Similkameen River, north of Palmer Lake | 1982 |
17020007
| Similkameen | established |
268061
| WA | Okanogan | Palmer Creek, just north of Palmer Lake | 1982 |
17020007
| Similkameen | established |
239549
| WA | Okanogan | Palmer Lake | 2005 |
17020007
| Similkameen | established |
612812
| WA | Okanogan | Similkameen River at shoal area, about 0.5 miles above bridge at Nighthawk, 9.5 to 10.0 air miles W Oroville | 1997 |
17020007
| Similkameen | established |