| Number seen/Abundance | Date | Location | Comments | Recorded by |
|---|---|---|---|---|
| O | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
Low water mark on sand | Ruth Williams |
| 1 | 2004-06-07 | Tunnels beach Tunnels beach, Ilfracombe, North Devon. Low shore between pools |
In a rockpool | Kim-Marie Clothier |
| present | 2006-11-16 | baitor beach poole |
Steve Trewhella | |
| Abundant | 2009-08-29 | Two Tree Island Essex Mudflats and saltmarsh |
Small clumps in many places especially damp ones | Nigel Sawyer |
| Density: 50/m2 | 2009-10-27 | St Anne's Pier Area North of the pier. |
North West Wildlife Trusts Irish sea | |
| NA | 2009-08-13 | Blackpool Central - South Shore Sandy beach |
North West Wildlife Trusts Irish sea | |
| Many | 2010-01-22 | Morecambe Morecambe, Polo Tower, Lancashire |
Alive Density: 50 per sq metre | North West Wildlife Trusts Irish sea |