Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
614240
| NE | Antelope | Big Spring Creek; T28N,R8W,S21,SE1/4; Lower Niobrara River | 1987 |
10150007
| Lower Niobrara | established |
547030
| NE | Antelope | Dikeman's ponds, 1n 1e Royal | 1939 |
10150007
| Lower Niobrara | established |
546947
| NE | Antelope | Republican River | 1987 |
10150007
| Lower Niobrara | established |
614249
| NE | Holt | 1 mi. NE. Dorsey, Site-45; T31N,R9W,Sec.2,NE1/4ofSE1/4; UTM 14T 555261E 4726573N; Lower Niobrara River | 2003 |
10150007
| Lower Niobrara | established |
547024
| NE | Holt | Elkhorn River | 1993 |
10150007
| Lower Niobrara | established |
547023
| NE | Holt | Johnson Creek | 1993 |
10150007
| Lower Niobrara | established |
547009
| NE | Holt | Louse Creek, 4.5w Dorsey | 1995 |
10150007
| Lower Niobrara | established |
547010
| NE | Holt | Louse Creek, 4.5w Dorsey | 1995 |
10150007
| Lower Niobrara | established |
546921
| NE | Holt | Middle Branch Verdigre Creek, 14.25e ONeill | 1973 |
10150007
| Lower Niobrara | established |
546920
| NE | Holt | North Branch Verdigre Creek, 7.25n 15.75e ONeill | 1973 |
10150007
| Lower Niobrara | established |
546846
| NE | Holt | North Platte River | 1987 |
10150007
| Lower Niobrara | established |
546966
| NE | Holt | North Platte River | 1993 |
10150007
| Lower Niobrara | established |
546969
| NE | Holt | Oak Creek | 1989 |
10150007
| Lower Niobrara | established |
547011
| NE | Holt | Oak Creek, 6w .5s Midway | 1995 |
10150007
| Lower Niobrara | established |
547012
| NE | Holt | Oak Creek, 6w .5s Midway | 1995 |
10150007
| Lower Niobrara | established |
546928
| NE | Holt | Republican River | 1974 |
10150007
| Lower Niobrara | established |
546951
| NE | Holt | Republican River | 1989 |
10150007
| Lower Niobrara | established |
547033
| NE | Holt | South Platte River | 1994 |
10150007
| Lower Niobrara | established |
546845
| NE | Holt | Unnamed trib. to Platte River | 1987 |
10150007
| Lower Niobrara | established |
546844
| NE | Holt | Unnamed trib. to Platte River | 1987 |
10150007
| Lower Niobrara | established |
37425
| NE | Knox | just south of Niobrara River | 1974 |
10150007
| Lower Niobrara | established |
547007
| NE | Knox | Steel Creek, 13w .5s Niobrara | 1995 |
10150007
| Lower Niobrara | established |
547008
| NE | Knox | Steel Creek, 13w .5s Niobrara | 1995 |
10150007
| Lower Niobrara | established |