Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
545006
| NE | Holt | Missouri River | 1991 |
10150007
| Lower Niobrara | established |
545548
| NE | Holt | Niobrara River, below Spencer Dam | 1928 |
10150007
| Lower Niobrara | established |
545652
| NE | Holt | Niobrara River, Below Spencer Dam | 1977 |
10150007
| Lower Niobrara | established |
545941
| NE | Holt | Niobrara River, Below Spencer Dam | 1977 |
10150007
| Lower Niobrara | established |
546182
| NE | Holt | Niobrara River, Brg S of Butte on N side | 1970 |
10150007
| Lower Niobrara | established |
545639
| NE | Holt | Niobrara River, Spencer hydro | 1995 |
10150007
| Lower Niobrara | established |
546030
| NE | Holt | Niobrara River, vicinity of Spencer Dam | 1993 |
10150007
| Lower Niobrara | established |
545730
| NE | Holt | Republican River | 1994 |
10150007
| Lower Niobrara | established |
545530
| NE | Holt | Unnamed ditch, .75s Kearney | 1997 |
10150007
| Lower Niobrara | established |
546313
| NE | Knox | Bazile Creek, Sta.40 | 2003 |
10150007
| Lower Niobrara | established |
546298
| NE | Knox | Niobrara River, Sta.43/291 | 2003 |
10150007
| Lower Niobrara | established |
546314
| NE | Knox | Verdigre Creek, Sta.41B | 2003 |
10150007
| Lower Niobrara | established |