| Number seen/Abundance | Date | Location | Comments | Recorded by |
|---|---|---|---|---|
| 5 | 2003-05-17 | Firestone Bay, Plymouth |
Various sizes seen. | Seashore Safari |
| 4 | 2003-06-25 | Trevone/Newstrain Beach - flat slate rock outcrop |
Seen in rock pools, under overhangs and rocks. | St Issey School Group |
| 1 | 2003-07-16 | Polzeath, north Cornwall. Rocky shore |
Hiding under rock, 1 pincer missing. Carapace 5-5.5 cm. | Liz Barton |
| 5 | 2003-07-11 | Constantine Bay - rocky shore with sandy inlets & gullies |
Hiding under stones/seaweeds 3 dead crabs also seen. | |
| 1 | 2003-07-14 | Bude (north coast, rocky area seawardside of breakwater (13:00-14:00). |
Juvenile seen in rockpool. | |
| 1 | 2003-08-12 | Wembury, voluntary marine conservation area (VMCA), devon. |
Male, about 4-5cm across. Found under rock in lower shore rockpool. | Caroline Farrell |
| 1 | 2004-02-20 | Batten Bay rocky shore with boulders |
Rock pool | Daniel Davy |
| 1 | found sheltering under rock upper shore zone. | |||
| 3 | 2002-05-11 | Batten Bay, nr Plymouth |
Found in upper shore rock pool under boulders. 1 male, 2 female. | BTCV/ MilleniumVolunteers |
| 1 | 2002-05-11 | Batten Bay, nr Plymouth |
Found under rock in lower shore rock pool | BTCV/ MilleniumVolunteers |
| P | 2004-03-26 | Woddy Bay - North sheltered bay approx 2km long comprising mainly boulders,and pebbles with some overhangs and rockpools. Waterfalls onto beach (photos enclosed) |
present - 3 under rocks | Barbara Haddrill |
| C | 2004-04-06 | Batten Bay, Mountbatten, near Plymouth |
Common, found all over the shore, huge variety of sizes. | Seashore Safari |
| F | 2004-04-07 | Helford passage + Bar beach, Helford River, Cornwall. |
All over shore | Ruth Williams |
| C | 2004-05-08 | Jennycliff Bay, near Plymouth. Rocky shore, alongside sandy/gravelly beach. |
Common under rocks and in pools | Seashore Safari |
| P | 2004-04-06 | Wembury VMCA |
Cat Ridout | |
| 10 | 2004-07-05 | Batten Bay Batten Bay, Nr Plymouth. |
in rockpools | Seashore Safari |
| 2 | 2004-06-07 | Tunnels beach Tunnels beach, Ilfracombe, North Devon. Low shore between pools |
Seen in high shore pool | Kim-Marie Clothier |
| 2 | 2004-05-06 | Barricane Beach Barricane Beach, near Woolacombe. West facing shingle and sandy beach surrounded by numerous sloping rock with rockpools. Quite heavily scoured. |
In rockpool | Barbara Haddrill |
| 7 | 2004-07-03 | Lee Beach Lee Beach |
In rockpools under rocks, 1 with eggs | Barbara Haddrill |
| 1 | 2004-06-18 | Croyde Beach Croyde Beach, west facing rocky platforms north of sandy bay. Midshore area, rock rocks with frequent pools, shallow and deep. Sunny & cloudy, strong breeze site 2 |
In water in seaweed | David Butt (Brauton School) |
| F | 2002-03-28 | Batten Bay, nr Plymouth |
Frequent, seen under boulders | Caroline Farrell |
| C | 2002-09-07 | Batten Bay, Mount Batten, Plymouth Sound. |
Found during Seashore safari. Common, various sizes found, carapace <1cm (approx) - carapace 7cm (approx). | Samuel Parr |
| 4 | 2001-09-16 | Shankill Beach between Bray and Killiney, County Dublin Ireland. |
No information entered | Tim Clabon |
| P | 2004-09-18 | Batten Bay Batten bay, Plymouth |
More than ten counted | Marina Marltby |
| P | 2004-09-07 | Saltstone West of Saltstone, Salcombe Estuary |
Shifting through anoxic sediment | Nigel Mortimer |
| 2 | 2004-10-26 | Wembury beach Wembury beach |
Very Common | Simon Roper |
| P | 2005-02-23 | Sillery Sands foreshore low tide level (springs), Lynmouth Bay |
Many in small pools (1 cm) | S R Hewlett |
| P | 2005-03-10 | Sillery Sands foreshore between Point Perilous and the bottom of the decent path 9-10/3/05. |
A few seen in a crevice and on edge of rockpool | Horspath Primary |
| F | 2005-04-09 | Batten Bay Batten Bay, Plymouth Sound |
Seen under rocks | Seashore Safari |
| P | 2005-05-06 | Foreshore from Lynmouth to Sillery Sands |
Lots seen at pool edges | Wheatley Park |
| P | 2004-05-18 | River Lyn East Bank of the River Lyn at 12 noon on a rising neap tide. |
Many seen in pools | St Michaels School |
| P | 2005-05-27 | Batten Bay Batten Bay, Plymouth Sound |
Loads seen underneath rocks, in rock pools. Mid-lower shore. Carapace up to 4 cm diameter. | Sonia Rowley |
| 15 | 2005-05-31 | Portscatho beach |
Various sizes seen | Sam Parr |
| 1 | 2005-07-08 | Blackstone Rocks on Blackstone Rocks at Wembury Beach |
with orange eggs, approx 50mm carapace length, mid shore rockpool | Cat Ridout |
| P | 2005-05-24 | Mothecombe Beach Mothecombe Beach near Erme Estuary, South Devon |
Seen by group 10,years 4-6, Alice, Keira, Rachel, Olivia and Holly Gask | Holbeton School |
| P | 2005-05-24 | Mothecombe Beach Mothecombe Beach near Erme Estuary, South Devon |
Seen by group 2, year 4-6, Tom, Jacob Houzehan, Will, Steve and Ben | Holbeton School |
| 10 | 2005-07-20 | Blackstone Rocks Blackstone Rocks Wembury Beach |
mostly juveniles between 10-35 carapace length. one approx 70mm with new eggs. | Cat Ridout |
| O | 2005-08-02 | Far pontoon, Queen Anne's Battery marina |
occasional amongst algae | Judith Oakley |
| 6 | 2005-10-01 | Blackstone Rocks Blackstone Rocks, Wembury |
3 pairs of pre-mating crabs, all low shore | Cat Ridout |
| many | 2005-10-04 | Lynmouth shore west. |
under rocks | Deddington School |
| 8 | 2005-10-13 | Lynmouth foreshore |
Under big rocks | mill lane |
| 1 | 2005-10-26 | marina pontoons, Falmouth marina, Falmouth,Cornwall |
Amongst kelp on pontoon | Judith Oakley |
| 3 | 2005-09-26 | Fowey estuary Fowey estuary, marina, Cornwall |
In tyre and on pontoon | Judith Oakley |
| lots | 2005-11-08 | Lynmouth beach, East of rivermouth |
Under rocks | Caroline Farrell |
| 3 | 2005-12-01 | Lynmouth foreshore Lynmouth fore shore. |
One was carrying eggs | New Marstom |
| many | 2005-12-07 | e.g. South coast of Lindisfarne, near the harbour. |
In crevice in rock pool | |
| Present | 2006-01-11 | Lynmouth Beach |
Lots seen under rocks | Shellingford Ducklington |
| Present | 2006-01-17 | Sillery Sands, Lynmouth. |
A few seen in the rock pools | Bampton Newman |
| 7 | 2006-01-11 | Blackstone Rocks Blackstone Rocks, Wembury, South Devon |
Found in various rockpools at mid to low tide level. Three females berried with eggs. | Caroline Farrell |
| 10 | 2003-06-17 | Wembury Rocky shore, Wembury Beach, South Devon. |
In rockpools. | Cat Ridout |
| 15 | 2003-06-18 | Wembury Rocky shore, Wembury Beach, South Devon. |
Cat Ridout | |
| 3 | 2003-06-25 | Wembury Wembury Beach, South Devon |
Cat Ridout | |
| 3 | 2003-07-14 | Wembury Rocky shore, Wembury Beach, South Devon. |
Cat Ridout | |
| 4 | 2003-07-17 | Wembury Wembury Beach, south Devon. |
Cat Ridout | |
| 3 | 2006-02-11 | Babbacombe bay - few metres off shore |
On sea bed and in reef | Faye Wood |
| 12 | 2006-03-19 | Blackstone Reef Blackstone reef, Wembury |
At least 4 with eggs. | Faye Wood |
| Present | 2006-03-01 | Intertidal below Hen Cliff, Kimmeridge |
Steve Trewhella | |
| 1 | 2006-03-15 | Llanon Beach Llanon Beach, Ceredigion, Wales |
On pebbles | Rose Eades |
| abundant | 2006-06-13 | Batten Bay Batten Bay, PLymouth |
Juveniles | Judith Oakley |
| 70+ | 2006-07-13 | Blackstone Rocks Blackstone Rocks |
Cat Ridout | |
| 1 | 2006-07-15 | Freathy Cliff, in a large rockpool |
Seen hiding in a crevice, approx 5cm wide on carpace. Had just moulted. | James Park |
| 1 | 2006-05-31 | Woodside Beach in Wootton, Isle of Wight |
In a small pool in the upper intertidal zone | Jo Read |
| lots | 2006-06-06 | Lynmouth Foreshore East at midtide. |
Rock pools | Madley Brook School |
| 40+ | 2005-06-09 | Blackstone Reef Blackstone Reef |
Cat Ridout | |
| 25 | 2006-06-14 | Blackstone Rocks Blackstone Rocks |
Cat Ridout | |
| 50+ | 2006-06-15 | Blackstone Rocks Blackstine Rocks |
Cat Ridout | |
| abundant | 2006-09-11 | Poole harbour |
Burrowing in soft mud all sizes | Steve Trewhella |
| 7 | 2006-08-30 | Blackstone Rocks Wembury Devon, rocky shoreline |
Near rocks and water on beach | George Hosegood |
| very common | 2006-09-24 | baiter beach poole harbour |
Steve Trewhella | |
| lots | 2006-10-18 | Lynmouth Beach E at low tide. |
Low tide | thomas pounder |
| 3 | 2007-03-16 | Lee Bay Lee Bay, near Ilfracombe, North devon |
2 in rockpools (1 juevnile) 1 in crevice | Caroline Roberts |
| 2003-04-15 | Strandline | Kathryn Turner | ||
| @1 per meter | 2003-03-23 | Fleetwood north Fleetwood north, Flyde coast |
Alive | Kathryn Turner |
| Abundant | 2007-05-01 | Blackstone Rocks Blackstone Rocks |
Many seen with eggs | Cat Ridout |
| Common | Some seen carrying eggs | |||
| Common | 2007-05-03 | Blackstone Rocks Blackstone Rocks |
Cat Ridout | |
| common | 2005-08-24 | East side of sugary cove - Dartmouth |
lowshore on rocks amongst algae, tiny | Sonia Rowley |
| 30 | under rocks | |||
| Common | 2007-05-15 | Blackstone Rocks Blackstone Rocks |
Cat Ridout | |
| 4 | 2007-05-16 | Blackstone Rocks Blackstone Rocks |
Cat Ridout | |
| Rare | 2007-05-17 | Blackstone Rocks Blackstone Rocks |
Cat Ridout | |
| present | 2007-05-17 | hen cliff kimmeridge |
Steve Trewhella | |
| 20 | 2007-06-02 | Downend Downend Headland, between Croyde & Saunton |
A few large mature crabs in crevices, many small crabs under stones | Paula Ferris |
| c.6 | 2007-07-14 | Jennycliff |
Jayne Evans | |
| Occasional | ||||
| Occasional | 2007-08-02 | Blackstone Rocks Blackstone Rocks |
Cat Ridout | |
| lots | 2007-09-26 | Lynmouth Lynmouth |
All levels | tony jones |
| 2007-10-25 | Oxwich Point Oxwich Point, Swansea |
Shore Thing | ||
| Common | 2008-01-12 | Mount Batten, Plymouth |
Seashore Safari | |
| 1 | 2008-01-12 | Mount Batten, Plymouth |
In a pool | Seashore Safari |
| rare | 2008-01-24 | Oxwich Point Oxwich bay and Oxwich Point |
1 feeding in freshwater runoff stream on sand | Judith Oakley |
| Present | 2008-06-06 | Batten Bay, Mount Batten, Plymouth |
Seashore Safari | |
| 25 | 2008-06-19 | Blackstone Rocks Blackstone rocks wembury beach |
everywhere in the rockpools, 2 females had eggs | Cat Ridout |
| Abundant | 2008-06-21 | South East Cornwall South East Cornwall, rocky shore. |
All living within clumps of spiral rack. All half a cm to 1cm in length at low tide. Middle shore. | Amelia Bridges |
| 4 | 2008-07-01 | Blackstone Rocks Blackstone rocks |
1 large female with eggs, all under rocks | Cat Ridout |
| common | 2008-07-01 | Blackstone Rocks Blackstone rocks |
in rockpools | Cat Ridout |
| 12 | 2008-07-25 | Mothecombe Beach, South Devon |
lots - some good size | Jon Parr |
| Common | 2008-10-17 | Cawsand beach |
Lower shore | Milly Hatton-Brown |
| Abundant | 2009-04-07 | Blackstone Rocks Rockpools |
One had eggs | Cat Ridout |
| Common | 2009-04-09 | Blackstone Rocks, Wembury Rockpools |
Cat Ridout | |
| Common | 2009-04-10 | Blackstone Rocks, Wembury Rockpools |
Cat Ridout | |
| 5 | 2009-04-11 | Blackstone Rocks, Wembury Rockpools |
Cat Ridout | |
| 1 | 2009-04-24 | Aberavon Beach Near the break water at Aberavon Beach |
Rockpool | Adrian Cooke |
| 1 | 2009-04-24 | Aberavon Beach Near the break water at Aberavon Beach |
In rockpool | Adrian Cooke |
| Abundant | 2009-05-12 | Blackstone Rocks, Wembury Rockpools |
Cat Ridout | |
| Abundant | 2009-05-24 | Blackstone Rocks, Wembury Rockpools |
One with eggs | Cat Ridout |
| 50 | 2009-05-24 | West Runton Beach Littoral zone |
Jeff Blincow | |
| Common | 2009-06-04 | Fairlie Fairlie Bay, overlooking Cumbrae and Hunterston Deep water quay |
Amongst rocks | Roger Griffith |
| 2 | 2009-06-20 | Hastings Rocky shore below East Hill with some sand patches, shingle, pebbles and boulders. There is also a rocky \"platform\" mid-low shore with many crevices and small rock pools. Other species certainly present including some hydroids, bryzoans, brown flatworms, probable Bullhead and other fish |
Under stones. No doubt many more present | Nigel Sawyer |
| 2 | 2009-07-05 | Cow Gap, Eastbourne Boulder, rocks and stone leading down to sea, some sandy/gravel patches, with small rock pools and some finer sediment. Un identified Spirobius sp, Sandhoppers and worm (prob Hermanthoe impar - picture sent via post) as well as seaweeds |
Under stones | Nigel Sawyer |
| Very common | 2009-07-18 | Eastbourne, below Pinnacle Mainly soft bedrock with pools and some pebble and sandy areas. Storms previous day and persistant strong wind. Some unidentified hydroids (?Obelia) also found 2 metre low tide so water level fairly high |
In bait bucket must have been 5-10 times as many of these as Cancer pagurus. | Nigel Sawyer |
| Occasional | 2009-07-07 | Blakeney long shingle and sandy beach |
Most of the crabs that were found were female. | Tom Young |
| Common | 2009-08-21 | Cow Gap near Eastbourne Beach consisting mainly of bolders, cobbles, pebbles with patchs of clay and sand. |
Under stones | Nigel Sawyer |
| Common | 2009-08-31 | Herne Bay Kent Below \"soft cliffs\" mainly sandy with some pools and bedrock of sandy clay. Some boulders on the shore often seaweed covered |
Many small (carpace c.10mm) under stones and several dead individuals | Nigel Sawyer |
| NA | 2009-08-24 | Silloth Shell beach with mussels. |
NA | North West Wildlife Trusts Irish sea |
| 4 | 2009-09-26 | Perranporth Middle Shore - Sheltered Sandy rockpools with an abundance of Ulva lactuca Rockpools were freshly revealed by the tide (less than 2 hours) |
One very large specimen (120mm carapace), three medium sized crabs (50-80mm carapace) | James Park |
| Abdundant | 2009-08-29 | Two Tree Island Essex Mudflats and saltmarsh |
Washed up on strand line in the hundreds and living ones under stones. All sizes | Nigel Sawyer |
| Common | 2009-09-21 | Eastbourne Pier The pier at Eastbourne. Sandy beach below shingle with some soft bedrock with pools. In addition to the list Mactra stultrom common, as were hydroids (unidentified on the pier structure) |
Under stones | Nigel Sawyer |
| Rare | 2009-09-29 | West Mud West side of river Tamar, opposite dockyard, between Millbrook and St John\'s Lake |
In mud/gravel patches between the eelgrass | John Hepburn |
| 2 | 2009-09-07 | Aberavon Beach Aberavon Beach, Wales |
Traethmelyn Primary School Doyle | |
| 1 | 2009-09-07 | Aberavon Beach Aberavon Beach, Wales |
See in a rockpool | Traethmelyn Primary School Doyle |
| 1 | 2009-11-01 | Fleetwood North Sunken car park in Fleetwood, Lancashire. |
Living specimen | North West Wildlife Trusts Irish sea |
| 1 | 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 |
Alive | North West Wildlife Trusts Irish sea |
| n/a | 2010-01-22 | Morecambe Morecambe, Polo Tower, Lancashire |
Live specimens | North West Wildlife Trusts Irish sea |
| 5 | 2010-04-21 | Cow Gap, Beachy Head Sussex Rock pools and sandstone area. Area of sand and some mud/ sand patches amongst the boulders and other rocks. Jaera sp also seen. Pools near the cliff had the seaweed Dumontia incrassata and shells of Mactra stultorum were also found (neither listed in DB) |
Under stones | Nigel Sawyer |
| Common | 2010-04-25 | Hope Gap, Seaford, Sussex Low tide on chalk platform boulders, pebbles, with gulleys present lower on shore |
Found understones | Nigel Sawyer |
| Occasional | 2010-04-17 | North Landing, Flamborough Mainly chalk bedrock with cobbles and boulders- about 1/3 of the side is exposed rock. Live cover is mainly algae with limpits being far less abundant. |
Anthony Hurd | |
| Occasional | 2010-05-15 | Holbeck, Scarborough Rocky shore with large tidal pools, kelp forest and bare sediment |
Anthony Hurd | |
| Common | 2010-09-09 | Westward Ho! Semi-exposed shore, rocky shore at end sandy beach, rock platform cut by gullies and pools, sand at low tide |
Various sizes, probably less than a dozen adults seen | Paula Ferris |
| 15 | 2010-10-06 | Plimont, Guernsey Semi enclosed bay, sand with outcrops of rock perpemdicular to low water mark. Associated with the outcrops are motile stones and pools. (many alga species in rock pools dieing back) |
Under rocks and in pools. | Tabitha Pearman |
| common | 2011-01-20 | Portreath harbour entrance A narrow North Cornwall coast harbour. Very exposed. Some sand/mud, some loose rocks.Mostly hard rock. |
small specimens under some rocks. one had carried eggs | Treve Opie |
| >10 | 05/02/2011 | Gyllyngvase Beach Rocky shore to the left and right hand sides of the beach. |
Many females bearing eggs | Kristie Wilkinson |
| 2 | 05/03/2011 | Gyllyngvase Beach, Falmouth Rocky shore |
Kristie Wilkinson | |
| 1 | 03/04/2011 | Bognor Regis Following tide out. Strandline to tide line. Shingle to sand but with little washed up on sand. Many worm casts/ holes. Orange sponges also washed up. A single Pollachius sp (full size) was on the beach but too badly damaged to id to Pollock or COley (Gull attacked!) |
Dead up | Nigel Sawyer |
| Common | 16/04/2011 | Nothe Fort, Weymouth Rocky shore below Nothe Gardens towards the Stone Pier. Some shells look more like Venerupis rhomboides than sengalensis. Some unidentified small shrimps/ prawns seen in wide crevices |
Understone and many also in childrens buckets along the river bank | Nigel Sawyer |
| 5 | 20/05/2011 | Hornsea East Yorkshire Beach at low tide |
carapaces | jeff lyons |
| 30 | 02/06/2011 | Batten Bay Rocky shore at Mount Batten |
Marlin Beach Rangers | |
| 30 | 01/06/2011 | Devil's Point Rocky shore at Devil's Point |
Marlin Beach Rangers | |
| Common | 26/06/2011 | Hope Gap, Sussex Chalk platform with seaweed covering |
Variety of sizes from 10mm upwards. Under stones | Nigel Sawyer |
| Common | 10/07/2011 | Hope Gap, Susex Chalk platform with channels, flints and a seaweed covering (Pepper Dulse being dominant) |
Many under stones. Size varied from 10mm upto 40mm or more | Nigel Sawyer |
| Uncommon | 22/07/2011 | Hope Gap Sussex Chalk platform. 1m low tide and investigated area straight in front of the steps. Many cobbles and stones in the gulleys which were turned and looked at. A bootlace worm, encrusting bryozoan, a couple of unidentitied (and not photographed) chitons also seen - had to escape the rising tide) |
Only a few seen of all sizes. Normally much more common than C.pagurus but not so this time possibly because spent more time nearer the low tide mark | Nigel Sawyer |
| 20 | 02/08/2011 | Devil's Point Rocky shore |
Big ones fighting in the heat all over the beach. | Marlin Beach Rangers |
| Common | 06/08/2011 | Hope Gap, Sussex Chalk platform at low tide (1.2m) Several unidentified seaweeds seen and two scale worms (?Harmothoe impar). ALso Halurus equisetifolius which does not appear in the list |
Nearly all small inviduals mainly under stones but often in the open in rock pools - well disguised until they move | Nigel Sawyer |
| Uncommon | 28/09/2011 | Eastbourne Chalk platform in the east and sandy areas at low tide with soft rock and rock pools. |
Mainly small specimens 10mm or so | Nigel Sawyer |
| 2 | 02/07/2011 | Corton Sand and shingle beach with occassional areas of exposed hard substratum comprising 'soft' sedimentary rock in which shallow pools have formed. Groynes and wooden defenders situated near the mid tide mark behind which pools have formed. |
In rock pool | Tabitha Pearman |
| 10/07/2011 | Lerwick Description: Sheltered embayment with an East facing aspect; Full salinity Use and impacts: Fishing, drains, rockpooling Sub stratum: Bed rock, large to small boulders Features: Crevices, gullies, pools, overhangs Modifiers: Possible fresh run off from drains |
Tabitha Pearman | ||
| 6 | 18/09/2011 | Cape Clear Island South Harbour under stones at low tide |
Varios sizes, none bigger than 60 mm. | Becky Williamson |
| 1 | 12/02/2012 | South Promenade, Blackpool Man made rock pools forming sea wall defence. Large sandy beach (exposed site). |
Female found on sand next to disused discharge pipe extending out to sea. | Dawn Brange |
| 2 | 07/04/2012 | Gorey Flat sandy area |
Kevin McIlwee | |
| Common | 04/06/2012 | Greencliff Area of overhanging rock strata running at right-angles to the sea, with gullies open to NW, often sandy-bottomed. Lower part of wave-cut platform, with upper beach comprising large and very dynamic pebble ridge backed by high cliffs. Erosion of softer rock has created many shady crevices. |
Frequently found, often with C. pagarus and N. puber, but less common than these, more mid- than lower-shore. | Robert Durrant |
| Rare | 17/06/2012 | Splash Point, Seaford Chalk platform and shingle beach |
Broken carapaces of various sizes seen | Nigel Sawyer |