Specimen ID | State | County | Locality | Year |
| Drainage name | Status |
164028
| AZ | La Paz | Bill Williams River National Wildlife Refuge | 2005 |
15030204
| Bill Williams | established |
167332
| AZ | La Paz | Lake Havasu -- Havasu Springs | 2001 |
15030204
| Bill Williams | established |
167082
| AZ | Mohave | Alamo Reservoir | 2001 |
15030204
| Bill Williams | established |
167110
| AZ | Mohave | Bill Williams River | 2001 |
15030204
| Bill Williams | established |
166945
| AZ | Mohave | Havasu National Wildlife Refuge | 2001 |
15030204
| Bill Williams | established |