Sue Daly / Close-up of a Seven rayed starfish (Luidia ciliaris) moving over the seabed, showing use of its tube feet to walk, Sark, British Channel Islands, UK, August.

Sue Daly / Seven rayed starfish (Luidia ciliaris) moving over the seabed, showing use of its tube feet to walk, Sark, British Channel Islands, UK, August.

SCOTLAND: The Big Picture / Seven armed starfish (Luidia ciliaris) semi buried in the seabed, South Arran Marine Protected Area, Isle of Arran, Scotland, UK, August.

SCOTLAND: The Big Picture / Seven armed starfish (Luidia ciliaris) amongst kelp in no take zone, South Arran Marine Protected Area, Isle of Arran, Scotland, UK, August.

Hanne & Jens Eriksen / Starfish (Luidia savignyi) upperside, in shallow water on beach, Oman, December

Sue Daly / Seven Armed Starfish (Luidia ciliaris) Boue Tirlipois, Sark, British Channel Islands.

Sue Daly / Seven-armed Starfish (Luidia ciliaris). Les Dents, Sark, British Channel Islands, August.

MYN / Carsten Krieger / Seven armed starfish (Luidia ciliaris) from rocky shore, County Clare, Republic of Ireland, August. meetyourneighbours.net project

Sue Daly / Seven Armed Starfish (Luidia ciliaris). Channel Islands, UK, July.

Dan Burton / Seven rayed starfish {Luidia ciliaris} Skye, Scotland.

Nick Upton / Seven rayed (armed) starfish on seashore {Luidia ciliaris} Republic of Ireland

Henley Spiers / Seven-armed starfish (Luidia ciliaris) feeding on Common brittlestars (Ophiothrix fragilis) on the seabed, Shetland, Scotland, North Sea, UK. May.