Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
275921
| AZ | Coconino | Colorado River near confluence with Little Colorado River | 2005 |
15010001
| Lower Colorado-Marble Canyon | established |
262713
| AZ | Coconino | Colorado River, Grand Canyon National Park | 1968 |
15010002
| Grand Canyon | established |
262712
| AZ | Coconino | Colorado River, Marble Canyon | 1968 |
15010001
| Lower Colorado-Marble Canyon | established |
28054
| AZ | Mohave | Lake Mead | 1942 |
15010005
| Lake Mead | established |
158243
| AZ | Mohave | Lake Mead National Recreation Area | 1999 |
15010005
| Lake Mead | established |
39212
| NV | Clark | Lake Mead | 1954 |
15010005
| Lake Mead | established |
266050
| NV | Clark | Lake Mead | 2001 |
15010005
| Lake Mead | established |
159327
| NV | Clark | Lake Mead National Recreation Area | 1999 |
15010005
| Lake Mead | established |
262468
| NV | Clark | Lake Mead, Virgin Basin | 1967 |
15010005
| Lake Mead | established |
262465
| NV | Clark | Moapa River, downstream portions | 1967 |
15010012
| Muddy | established |
262466
| NV | Lincoln | Meadow Valley Wash | 1967 |
15010013
| Meadow Valley Wash | established |
1321935
| UT | Washington | Red Hills Desert Garden | 2015 |
15010008
| Upper Virgin | established |