Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
50579
| AZ | Yuma | Colorado River, Yuma | 1955 |
15030107
| Lower Colorado | established |
1409236
| CA | Contra Costa | San Joaquin River at Antioch, including both channels on south side of Twitchell Island | 1955 |
18040003
| San Joaquin Delta | established |
1409259
| CA | Contra Costa | San Joaquin River at Antioch, upstream side of Antioch Bridge and extending 1,000 yards upstream | 1955 |
18040003
| San Joaquin Delta | established |
1398265
| ID | Owyhee | Snake River, Homedale, SW 1/4 Sec 3, T, 3N., R5W | 1955 |
17050103
| Middle Snake-Succor | established |
1398276
| ID | Owyhee | Snake River, Homedale, SW1/4 Sec3 T3N R5W | 1955 |
17050103
| Middle Snake-Succor | established |
52156
| WA | | Columbia River [county unknown] | 1955 |
| | established |