Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
36380
| MT | | Clark Fork River at southern end of basin | 1990 |
17010201
| Upper Clark Fork | collected |
36565
| MT | Cascade | Clark Fork drainage | 1971 |
17010200
| Pend Oreille | collected |
36377
| MT | Flathead | Flathead River, near Columbia Falls | 1990 |
17010208
| Flathead Lake | collected |
163127
| MT | Granite | Bearmouth, Granite County, high-altitude, thermal spring fed pond in the Columbia River drainage | 1959 |
17010202
| Flint-Rock | established |
163126
| MT | Granite | Bearmouth, Granite County, high-altitude, thermal spring fed pond in the Columbia River drainage | 1961 |
17010202
| Flint-Rock | established |
36564
| MT | Granite | Clark Fork drainage, a second pond | 1971 |
17010201
| Upper Clark Fork | collected |
36562
| MT | Granite | Clark Fork drainage, pond | 1959 |
17010201
| Upper Clark Fork | established |
36563
| MT | Granite | Clark Fork drainage, pond | 1971 |
17010200
| Pend Oreille | extirpated |
36647
| MT | Granite | Clark Fork River, upper, between Flint and Rock Rivers | 1980 |
17010201
| Upper Clark Fork | established |