Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
27907
| AZ | | state non-specific | 1950 |
15000000
| Lower Colorado Region | established |
27554
| AZ | Graham | pond near Safford | 1950 |
15040005
| Upper Gila-San Carlos Reservoir | collected |
1334927
| CO | Boulder | At Hwy. 287 (prob. not 285), 9 miles east of Boulder. | 1950 |
10190005
| St. Vrain | established |
40065
| OH | | state non-specific | 1950 |
| | established |
746037
| OR | Marion | WILLAMETTE R. S. OF SALEM MARION CO | 1950 |
17090007
| Middle Willamette | established |
42758
| SD | Minnehaha | Covell Lake (#33), Sioux Falls | 1950 |
10170203
| Lower Big Sioux | established |
42762
| SD | Perkins | Flat Creek (#133), at upper end of Flat Creek Lake | 1950 |
10130303
| Grand | established |