Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
37621
| NE | Box Butte | Kilpatrick Lake | 1917 |
10150003
| Upper Niobrara | established |
546385
| NE | Cherry | Dry Creek, 1.5e Merriman | 1973 |
10150003
| Upper Niobrara | established |
546386
| NE | Cherry | Dry Creek, 10w Merriman | 1973 |
10150003
| Upper Niobrara | established |
37638
| NE | Cherry | Shell Lake | 1960 |
10150003
| Upper Niobrara | established |
546382
| NE | Dawes | Niobrara River, below Box Butte Reservoir | 1989 |
10150003
| Upper Niobrara | established |
546415
| NE | Dawes | Platte River | 1983 |
10150003
| Upper Niobrara | established |
37649
| NE | Sheridan | Harris Lake (found in Sheridan Co and correct HUC) | 1963 |
10150003
| Upper Niobrara | established |
547679
| NE | Sheridan | Hwy 87, 13.5 mi. S. Hay Springs, Site-133; T29N,R46W,Sec.22,NE1/4ofNE1/4; UTM 13T 689416E 4705895N; Upper Niobrara River | 2003 |
10150003
| Upper Niobrara | established |
546364
| NE | Sheridan | Platte River | 1995 |
10150003
| Upper Niobrara | established |
37664
| NE | Sheridan | Walgren Lake, ca 6 mil se of Hay Springs, a disconnected sand hill lake | 1963 |
10150003
| Upper Niobrara | established |