HUNDREDS of ‘spider crabs’ are bafflingly washing up in a marina in Devon.
Pictures show the creatures crawling onto a wall near luxury motorboats and yachts.
Some have even started shedding their shells, according to intrigued onlookers.
No one knows why the crabs turned up en masse in shallow waters.
And staff at King Point Marina in Plymouth, Devon, said it was not something they had seen in the 20-plus years they have worked in the area.
‘We have been down here for years working with the boats, but we have never seen anything like this,’ one employee said.
‘The tide is low, and obviously it’s very warm, but there’s hundreds of spider crabs on the wall and actually in the sea itself.’
‘We see dolphins, obviously, on Mayflower Marina, when it’s really warm they go up against boats, but we don’t see spider crabs like that.
‘We see the odd crab but nothing like the infest we have there. It looks like some have shelled, but I’m not an expert on marine life.’
Peter Williamson, of Saltwater Boat Hire, added: ‘I’ve certainly never seen anything like that in any marina, and I am in and out of them all the time.’