Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
28558
| CA | | Pit River, reservoirs | 1974 |
18020003
| Lower Pit | established |
28824
| CA | | Sacramento drainage | 1976 |
18020000
| Upper Sacramento | established |
28557
| CA | Lassen-Modoc | Pit River, middle reaches | 1974 |
18020003
| Lower Pit | established |
267169
| CA | Modoc | Pit River drainage | 1978 |
18020002
| Upper Pit | established |
1702961
| CA | Shasta | Britton Reservoir on Pit River | 1986 |
18020003
| Lower Pit | |
28827
| CA | Shasta | upper Pit River in Big Valley, swampy areas | 1976 |
18020003
| Lower Pit | established |
28519
| CA | Shasta/Modoc | Pit River drainage | 1974 |
18020002
| Upper Pit | established |
28813
| CA | Shasta/Modoc | Pit River drainage | 1976 |
18020000
| Upper Sacramento | established |