Nick Upton / Squat lobster (Galathea squamifera) in rockpool. South Devon, England, UK. September.

Nick Upton / Squat lobster (Galathea squamifera) from English Channel. South Devon, England, UK. September.

Alex Mustard / Portrait of an Olive squat lobster (Galathea squamifera) on a chalk reef. Sherringham, north Norfolk, England, UK. North Sea

Nick Upton / Squat lobster (Galathea squamifera) hiding under a stone in a rockpool, threat display, Cornwall, England, UK, September.

Christophe Courteau / Squat lobster (Galathea squamifera) dorsal view. Brittany, France, January.

Sue Daly / Squat Lobster (Galathea squamifera) on seaweed on the shore at Sark, British Channel Islands.

Nick Upton / Squat lobster (Galathea squamifera) on the move with its claws raised in a rockpool, near Falmouth, Cornwall, UK, August.

Nick Upton / Head on view of Squat lobster (Galathea squamifera) in a rockpool low on the shore among mix of red, green and brown algae, near Falmouth, Cornwall, UK, August.

Nick Upton / Squat lobster (Galathea squamifera) in a rockpool, near Falmouth, Cornwall, UK, August.

Nick Upton / Squat lobster (Galathea squamifera) in a rockpool low on the shore among mix of red, green and brown algae alongside a well camouflaged Common prawn (Palaemon serratus) near Falmouth, Cornwall, UK, Au...

Sue Daly / Squat lobster (Galathea squamifera) out of water on seaweed, Channel Islands, UK March

Robert Thompson / Squat lobster {Galathea squamifera} Murles Point, Co. Donegal, Republic of Ireland, May