Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
33083
| IA | Fremont | Missouri River near Nebraska City (Payne) at river mile 556.2 | 1979 |
10240001
| Keg-Weeping Water | established |
33107
| IA | Harrison | Missouri River, Harrison County, Missouri River, IA | 1987 |
10230001
| Blackbird-Soldier | established |
613771
| IA | Monona | Missouri River, Mile Marker 706; Missouri River | 1980 |
10230001
| Blackbird-Soldier | established |
33082
| IA | Pottawattamie | Missouri River near the Fort Calhoun power plant | 1975 |
10230006
| Big Papillion-Mosquito | established |