Flabellina trilineata
(O'Donoghue, 1921)

Photographed by: Gary McDonald
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| Subclass: | Opisthobranchia |
| Order: | Nudibranchia |
| Suborder: | Aeolidina |
| Family: | Flabellinidae |
| Species: | Flabellina trilineata |
Locality:
- USA
- California (19) Jan, Mar, Jun, Jul, Sep, Nov, Dec
- La Jolla (1) Sep
- Canada
- British Columbia (6) Apr, May, Nov