| Species For the Class Hydrozoa from All Park Watersheds | ||||
|---|---|---|---|---|
| Watershed | Genus | Species | Subspecies | Common Name |
| Abrams Creek | Hydra | species | Hydra species | |
| Hydra | viridissima | Green hydra | ||
| Cataloochee Creek | Hydra | species | ~ | Hydra species |
| East Prong Little River | Hydra | species | Hydra species | |
| Little River, Lower | Hydra | species | ~ | Hydra species |
| West Prong Little River | Hydra | oligactis | Brown hydra | |
| Hydra | viridissima | Green hydra | ||