Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
65
| AZ | | Colorado River entire length in AZ | 1966 |
15010005
| Lake Mead | established |
167363
| AZ | Mohave | Lake Mead -- Grand Wash | 2001 |
15010006
| Grand Wash | established |
266071
| NV | Clark | Las Vegas | 1942 |
15010015
| Las Vegas Wash | established |
266073
| NV | Clark | Moapa River Indian Reservation, near Glendale (in drainage ditches) | 1942 |
15010012
| Muddy | established |
262496
| NV | Clark | Moapa River, downstream portions | 1967 |
15010012
| Muddy | established |
262494
| NV | Clark | Virgin River, lower, at Mesquite | 1967 |
15010010
| Lower Virgin | established |
262495
| NV | Lincoln | Meadow Valley Wash | 1967 |
15010013
| Meadow Valley Wash | established |
260483
| NV | Lincoln | Meadow Valley Wash | 2001 |
15010013
| Meadow Valley Wash | established |
163854
| NV | Lincoln | Pahranagat National Wildlife Refuge, reservoirs | 2005 |
15010011
| White | established |
262488
| NV | Nye | Various springs and marshes in the lower desert areas of southern Nevada | 1967 |
15010011
| White | established |
62
| UT | Washington | tip of SW corner of the state | 1966 |
15010010
| Lower Virgin | established |