Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
259128
| CA | Merced | Dana Slough, Merced River | 1959 |
18040008
| Upper Merced | collected |
232591
| CA | Sonoma | Forestville | 1959 |
18010110
| Russian | established |
1456434
| IL | LaSalle | Point Shelter, Starved Rock State Park. | 1959 |
07130001
| Lower Illinois-Senachwine Lake | established |
213395
| KS | Wabaunsee | Eskridge, 2.5 mi W. | 1959 |
10270102
| Middle Kansas | established |
235101
| MA | Franklin | Deerfield, campus of Deerfield Academy | 1959 |
01080203
| Deerfield | collected |
232445
| MT | Lake | glacial pothole pond ~5 miles S of Ronan, along US Hwy 93, Mission Valley | 1959 |
17010212
| Lower Flathead | established |
232450
| MT | Lake | marshy area along Montana State Hwy 35 near the Finley Point junction | 1959 |
17010208
| Flathead Lake | established |
232449
| MT | Lake | mouth of North Crow Canyon, Mission Range | 1959 |
17010212
| Lower Flathead | established |
232446
| MT | Lake | Ninepipe National Waterfowl Refuge, in ponds, marshes, and along small streams and canals | 1959 |
17010212
| Lower Flathead | established |
232447
| MT | Lake | Ronan, meadows within the city | 1959 |
17010212
| Lower Flathead | established |
232448
| MT | Lake | Spring Creek, in the general Ronan area | 1959 |
17010212
| Lower Flathead | established |
852815
| OR | Columbia | Rainier | 1959 |
17080003
| Lower Columbia-Clatskanie | established |
853431
| OR | Columbia | Rainier | 1959 |
17080003
| Lower Columbia-Clatskanie | established |
243661
| OR | Columbia | West Rainier | 1959 |
17080003
| Lower Columbia-Clatskanie | established |