Longhorn Austraeolis
| Name: | Longhorn Austraeolis |
| Scientific Name: | Austraeolis catina |
| Other Names: | Longhorn Nudibranch |
| Family: | Aeolid Nudibranchs |
| Scientific Family: | Facelinidae |
| Source: | WoRMS AphiaID 532422 |
| Size: | up to 1 in. |
| Depth Range: | On the reef (10 – 60 ft.) |
| Sightings: | Seen sometimes |
The Longhorn Austraeolis has an orange translucent body and orange cerata with dark bases, white tips, and a faint yellow-green band at the top. Its rhinophores are ridged with white tips, and it has long tentacles.