| Number seen/Abundance | Date | Location | Comments | Species |
|---|---|---|---|---|
| 100-1000 | 28/5/2011 | Borth Sands West facing sandy beach backed by a pebble bank and sand dunes on the south side of the River Dyfi estuary |
Stranded on tide line. 10mm-40mm all left-handed. | Velella velella |
| 1000's | 28/5/2011 | Borth Sands West facing sandy beach backed by a pebble bank and sand dunes on the south side of the River Dyfi estuary |
stranded | Aurelia aurita |