| Number seen/Abundance | Date | Location | Comments | Species |
|---|---|---|---|---|
| 12 | 2010-05-14 | Tywyn, west wales Long sandy beach in front of the town. Considerable work is being done on the sea defences with new sea wall and rocky breakwaters being constructed. |
They were washed up and dead upon the tideline at the top of the beach. 4 were at the south end of the beach and 8 at the north end. They varied from about 9ins to 18 ins in diam. Photos will follow. | Rhizostoma pulmo |