iDigBio.org
GBIF.org
iNaturalist.org
NANFA
FishNet 2
USGS NAS| HUC Code | Watershed Name | Occurrence | Source |
| 15010005 | Lake Mead | Historic | NatureServe |
| 15010008 | Upper Virgin | Current | NatureServe |
| 15010010 | Lower Virgin | Current | NatureServe |
| 15010012 | Muddy | Current | NatureServe |