Genus Opiona
Chamberlin, 1951
- Species in this portal
- 2
- Ecological class
- All troglobiont
- Realm
- Terrestrial
- Continent
- North America
- Country
- United States
- States and provinces
- California and Oregon
- Karst regions
- Other
Species in this portal
| Species | Common name | Class | Status | States | Karst regions |
|---|---|---|---|---|---|
| Opiona catorycha Shear & Crawford, 2019 | Troglobiont | OR | Other | ||
| Opiona graeningi Shear, 2011 | Troglobiont | CA | Other |