| Number seen/Abundance | Date | Location | Comments | Species |
|---|---|---|---|---|
| 1 | 2007-07-08 | Maen Bugail Isolated Rock Maen Bugail in Bardsey Sound, Bardsey Island (Ynys Enlli)/Lleyn Peninsula, North Wales, United Kingdom. |
Located on red algae, which was on hard substrate ledge. Depth 8m. NW quadrant of rock. 1 specimen (approx 5cm long) clinging to a weed frond, in some surge. Conditions: Slack Tide, Full Sunshine, Vis: 15m, surge. Spotted by my buddy Maureen Collins, and photographed by me. Photographs available. | Okenia elegans |