Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
28075
| AZ | Yuma | backwater of the Colorado River in Arizona, 2 miles north of San Luis, Sonora | 1953 |
15030107
| Lower Colorado | established |
28076
| AZ | Yuma | Colorado River in Baja California Norte, 2 miles south of Gadsden | 1953 |
15030107
| Lower Colorado | established |
28857
| CA | | Colorado River | 1950 |
15030104
| Imperial Reservoir | established |
28858
| CA | | Colorado River | 1976 |
15030104
| Imperial Reservoir | established |
38725
| CA | | lower Colorado River system | 1954 |
15030104
| Imperial Reservoir | established |
159640
| NV | | Colorado drainage | 2001 |
15030104
| Imperial Reservoir | established |
262408
| NV | Clark | Colorado River, lower | 1967 |
15030101
| Havasu-Mohave Lakes | established |