| Number seen/Abundance | Date | Location | Comments | Species |
|---|---|---|---|---|
| 20 | 18/04/2011 | New Brighton Rock pools next to the concrete sea defences. |
Many dead but some smaller ones (between 3 and 8cm) were still alive. | Liocarcinus depurator |
| 3 | 18/04/2011 | New Brighton Rock pools next to the concrete sea defences. |
about 6cm long | Hyperoplus lanceolatus |