| Number seen/Abundance | Date | Location | Comments | Recorded by |
|---|---|---|---|---|
| >3 | 2005-06-19 | Wreck of the King Cadwallan, Scilly Isles, on the Hard Lewis Rocks. 36 meters deep, underwater visibility 8-9 meters, slight current. SE 5. |
Among hydroids in shallow wreckage. 1.5 cm long. | Sonia Rowley |
| frequent | 2005-10-26 | marina pontoons, Falmouth, Cornwall |
On buoy ropes and amongst Corella eumyota clumps. | Judith Oakley |
| occasional | 2006-06-22 | Queen Anne's Battery, Plymouth |
Large specimens on ropes. | Judith Oakley |
| 3 | 2006-04-29 | Blackstone Rocks Wembury beach, Blackstone rocks |
Cat Ridout | |
| Common | 2009-07-04 | Brixham Marina All species found on the pontoon floats in Brixham Marina |
Patchy distribution | Holly Latham |
| Rare | 2010-05-15 | Holbeck, Scarborough Rocky shore with large tidal pools, kelp forest and bare sediment |
Anthony Hurd |