Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
1651018
| NE | Brown | 69214, Johnstown, NE, US | 2016 |
10150004
| Middle Niobrara | established |
1667752
| NE | Brown | Alive on NE-7 | 2021 |
10150004
| Middle Niobrara | unknown |
1651023
| NE | Brown | Brown County, NE, USA | 2019 |
10150004
| Middle Niobrara | established |
1667748
| NE | Brown | Dead on NE-7 | 2021 |
10150004
| Middle Niobrara | unknown |
1661447
| NE | Cherry | 1 mi N, 1 mi E Valentine, Minnechaduza Creek at Valentine State Fish Hatchery | 1991 |
10150004
| Middle Niobrara | unknown |
1661448
| NE | Cherry | Fort Niobrara National Wildlife Refuge, beaver ponds in N Buffalo pasture, V | 1991 |
10150004
| Middle Niobrara | unknown |
1661449
| NE | Cherry | Fort Niobrara National Wildlife Refuge, beaver ponds in N Buffalo pasture, V | 1991 |
10150004
| Middle Niobrara | unknown |
1661450
| NE | Cherry | Fort Niobrara National Wildlife Refuge, beaver ponds in N Buffalo pasture, V | 1991 |
10150004
| Middle Niobrara | unknown |
1661451
| NE | Cherry | Fort Niobrara National Wildlife Refuge, beaver ponds in N Buffalo pasture, V | 1991 |
10150004
| Middle Niobrara | unknown |
1661452
| NE | Cherry | Fort Niobrara National Wildlife Refuge, beaver ponds in N Buffalo pasture, V | 1991 |
10150004
| Middle Niobrara | unknown |
1661453
| NE | Cherry | Fort Niobrara National Wildlife Refuge, beaver ponds in N Buffalo pasture, V | 1991 |
10150004
| Middle Niobrara | unknown |
1661389
| NE | Cherry | Fort Niobrara National Wildlife Refuge, beaver ponds in N Buffalo pasture, V | 1991 |
10150004
| Middle Niobrara | unknown |
1661412
| NE | Cherry | Fort Niobrara National Wildlife Refuge, beaver ponds in N Buffalo pasture, V | 1991 |
10150004
| Middle Niobrara | unknown |
1661413
| NE | Cherry | Fort Niobrara National Wildlife Refuge, beaver ponds in N Buffalo pasture, V | 1991 |
10150004
| Middle Niobrara | unknown |
1661414
| NE | Cherry | Fort Niobrara National Wildlife Refuge, beaver ponds in N Buffalo pasture, V | 1991 |
10150004
| Middle Niobrara | unknown |
1661415
| NE | Cherry | Fort Niobrara National Wildlife Refuge, beaver ponds in N Buffalo pasture, V | 1991 |
10150004
| Middle Niobrara | unknown |
1661420
| NE | Cherry | Fort Niobrara National Wildlife Refuge, beaver ponds in N Buffalo pasture, V | 1991 |
10150004
| Middle Niobrara | unknown |
1661421
| NE | Cherry | Fort Niobrara National Wildlife Refuge, beaver ponds in N Buffalo pasture, V | 1991 |
10150004
| Middle Niobrara | unknown |
1661446
| NE | Cherry | Fort Niobrara National Wildlife Refuge, beaver ponds in N Buffalo pasture, V | 1991 |
10150004
| Middle Niobrara | unknown |
1661480
| NE | Cherry | Fort Niobrara National Wildlife Refuge, beaver ponds in N Buffalo pasture, V | 1991 |
10150004
| Middle Niobrara | unknown |
1661454
| NE | Cherry | Fort Niobrara National Wildlife Refuge, pond on S side Niobrara River, 1 mi N, 3 mi E HQ | 1991 |
10150004
| Middle Niobrara | unknown |
1661455
| NE | Cherry | Fort Niobrara National Wildlife Refuge, pond, 0.75 mi N, 3.25 mi E HQ | 1991 |
10150004
| Middle Niobrara | unknown |
1661422
| NE | Cherry | Fort Niobrara National Wildlife Refuge, pond, 0.75 mi N, 3.25 mi E HQ | 1991 |
10150004
| Middle Niobrara | unknown |
1661481
| NE | Cherry | Valentine National Wildlife Refuge, Headquarters | 1992 |
10150004
| Middle Niobrara | unknown |
1661388
| NE | Cherry | Valentine National Wildlife Refuge, HQ, pond at dump | 1991 |
10150004
| Middle Niobrara | unknown |