| Number seen/Abundance | Date | Location | Comments | Species |
|---|---|---|---|---|
| 1 | 2009-05-28 | Larne Lough Muddy flats exposed at low tide in the southern region of Larne Lough, near maghermourne and encountered a single Sea-Lemon, Archidoris pseudoargus feeding on Halichondria sponges which are common. |
Feeding on Halichondria sponges. I returned to the lab and took some photographs and confirmed species, I think? It started producing egg ribbons probably in response to the warm water! | Archidoris pseudoargus |