Linda Pitkin / 2020VISION / Spiny spider crab (Maja brachydactyla / squinado) pair on rock covered with red algae, Lundy Island Marine Conservation Zone, Devon, England, UK, May.

Alex Mustard / 2020VISION / Great spider crab (Hyas araneus) on Deadman's fingers (Alcyonium digitatum) coral, feeding in a current, Loch Carron, Ross and Cromarty, Scotland, UK, April

Toby Roxburgh / 2020VISION / Fishermen aboard a small fishing boat packing a container full of Spiny spider crabs (Maja Squinado), caught using tangle nets, Cornwall, England, UK, June 2011

Alex Mustard / 2020VISION / Aggregation of Spider crabs (Maja squinado) in shallow water off Burton Bradstock, Dorset, UK, August. 2020VISION Book Plate.

Alex Mustard / 2020VISION / Long legged spider crab (Macropodia rostrata) on Dead man's fingers (Alcyonium digitatum). Loch Carron, Ross and Cromarty, Scotland, UK, April

Alex Mustard / 2020VISION / Leach's spider crab (Inachus phalangium) sheltering from the current beneath tentacles of Snakelocks anemone (Anemonia viridis) Selsey, West Sussex, UK, May

Graham Eaton / Spiny Spider Crab (Maja squinado) with claws raised in an aggressive posture, in a fast tide, Abersoch, Wales, UK, May.

Jeff Rotman / Japanese Giant Spider Crab (Macrocheira kaempferi) World's Largest Crustacean in Tokyo Aquarium, Japan.

Wild Wonders of Europe / Zankl / Spiny spider crab (Maja squinado) on seaweed, Malta, Mediteranean, May 2009

Wild Wonders of Europe / Zankl / Spiny spider crab (Maja squinado) Malta, Mediteranean, May 2009

Wild Wonders of Europe / Lundgren / Great spider crab (Hyas araneus) decorated with hydroids, Moere coastline, Norway, February 2009

Wild Wonders of Europe / Lundgren / Long-legged spider crab (Macropodia rostrata) on a new kelp leaf, Moere coastline, Norway, February 2009

Juergen Freund / Soft coral crab / Dendronephthya crab (Hoplophrys oatesii) camouflaged on the tip of a soft coral. Indo-pacific

Georgette Douwma / Arrowhead crab (Huenia heraldica) on soft coral. Rinca, Indonesia

Juergen Freund / Arrow crab on sponge (Stenorhynchus seticornis) Caribbean

Juergen Freund / Decorator spider crab {Camposcia refusa}. Indo-Pacific

Jeff Rotman / Spider crab {Schizophrys sp} on soft coral {Dendronepthya sp} Bismarck sea, Papua New Guinea

Linda Pitkin / 2020VISION / Spiny spider crab (Maja brachydactyla / squinado) pair on rock covered with red algae, Lundy Island Marine Conservation Zone, Devon, England, UK, May.

Linda Pitkin / 2020VISION / Spiny spider crab (Maja brachydactyla / squinado) pair on rock covered with red algae, Lundy Island Marine Conservation Zone, Devon, England, UK, May.

Linda Pitkin / 2020VISION / Spiny spider crab (Maja brachydactyla / squinado) pair on rock covered with red algae, Lundy Island Marine Conservation Zone, Devon, England, UK, May.

Linda Pitkin / 2020VISION / Spiny spider crab (Maja brachydactyla / squinado) pair on rock covered with red algae, Lundy Island Marine Conservation Zone, Devon, England, UK, May.

Linda Pitkin / 2020VISION / Spiny spider crab (Maja brachydactyla / squinado) pair on rock covered with red algae, Lundy Island Marine Conservation Zone, Devon, England, UK, May.

Linda Pitkin / 2020VISION / Spiny spider crab (Maja brachydactyla / squinado) pair on rock covered with red algae, Lundy Island Marine Conservation Zone, Devon, England, UK, May.

Christophe Courteau / Leach's spider crab {Inachus phalangium} Brittany France

Alex Mustard / 2020VISION / Great spider crab (Hyas araneus) on Deadman's fingers (Alcyonium digitatum) coral, feeding in a current, Loch Carron, Ross and Cromarty, Scotland, UK, April

Solvin Zankl / Great spider crab (Hyas araneus) on Kelp (Laminaria hyperborea), Atlantic Ocean, North West Norway

Solvin Zankl / Great spider crab (Hyas araneus) with hydroids, Atlantic Ocean, Norway

Nick Upton / Sponge spider crab (Inachus sp.) covered in red sponge in a rockpool low on th shore alongside a group of Light bulb sea squirts (Clavellina lepadiformis), Helford River, Cornwall, UK, August.

Nick Upton / Sponge spider crab (Inachus sp.) covered in red sponge in a low shore rockpool alongside other sponges and some Light bulb sea squirts (Clavellina lepadiformis), Helford River, Cornwall, UK, August.

Sue Daly / Sponge crab (Inachus sp) hiding in anemone, Channel Islands, UK June

Toby Roxburgh / 2020VISION / Fisherman with a full basket of Edible crabs (Cancer pagurus) and Spiny spider crabs (Maja squinado), caught using pots, with an old tin mine on cliffs in the background, Trewavas Head, Cornwall, Engl...

Toby Roxburgh / 2020VISION / Fisherman sinking a basket of freshly caught Spiny spider crabs (Maja squinado) from 'Rhiannon', a crabber based in Porthleven, he will retrieve the basket later when the buyer is ready to collect, Co...

Toby Roxburgh / 2020VISION / Fisherman removing a Spiny spider crab (Maja squinado) from a tangle net on a small fishing boat, St. Ives, Cornwall, England, UK, June 2011 Model released

Toby Roxburgh / 2020VISION / Fishermen catching a Spiny spider crab (Maja squinado) using a tangle net on a small fishing boat, St. Ives, Cornwall, England, UK, June 2011 Model released

Toby Roxburgh / 2020VISION / Basket of Edible crabs (Cancer pagurus) and Spiny spider crabs (Maja squinado), caught using pots, Cornwall, England, UK, April 2011

Toby Roxburgh / 2020VISION / Bucket of Spiny spider crabs (Maja squinado), caught by tangle net, St. Ives, Cornwall, England, UK, June 2011

Toby Roxburgh / 2020VISION / Fisherman putting a Spiny spider crab (Maja squinado) into a seawater storage container on a small fishing boat, St. Ives, Cornwall, UK, June 2011 Model released

Toby Roxburgh / 2020VISION / Fisherman removing a Spiny spider crab (Maja squinado) from a tangle net on a small fishing boat, St. Ives, Cornwall, England, UK, June 2011 Model released

Toby Roxburgh / 2020VISION / Fisherman heading back to port with a full basket of Edible crabs (Cancer pagurus) and Spiny spider crabs (Maja squinado), caught using pots from 'Rhiannon', a crabber based in Porthleven, Cornwall, E...

Toby Roxburgh / 2020VISION / Fisherman removing a Spiny spider crab (Maja squinado) from a tangle net on a small fishing boat, St. Ives, Cornwall, England, UK, June 2011 Model released.

Alex Mustard / 2020VISION / Discarded exoskeletons following moulting of aggregation of Spider crabs (Maja squinado) in shallow water off Burton Bradstock, Dorset, UK, August

Alex Mustard / 2020VISION / Aggregation of Spider crabs (Maja squinado) in shallow water off Burton Bradstock, Dorset, UK, August

Alex Mustard / 2020VISION / Aggregation of Spider crabs (Maja squinado) in shallow water off Burton Bradstock, Dorset, UK, August

Alex Mustard / 2020VISION / Aggregation of Spider crabs (Maja squinado) in shallow water off Burton Bradstock, Dorset, UK, August. Did you know? Spider crabs camouflage themselves by allowing algae and other marine plants to gro...

Graham Eaton / Yellowline Arrow Crab (Stenorhynchus seticomis) in an Azure Vase Sponge (Callyspongia plicifera). St Lucia, West Indies, July.

Georgette Douwma / Hydroid or Fairy crab (Hyastenus bispinosus) perched on soft coral. It has decorated its body with hydroid polyps. Majidae - Spider or Decorator crab. Rinca, Komodo National Park, Indonesia.

Pete Oxford / Channel Clinging Crab (Mithrax spinosissimus). Sian Ka'an Biosphere Reserve, Yucatan Peninsula, Mexico.

Juergen Freund / Deepsea spider crab caught at 150 meters, Indo-pacific

Juergen Freund / Soft coral decorator crab (Hoplophrys oatesii) camouflaged on soft coral (Dendronephthya sp) Kimbe Bay, West New Britain, Papua New Guinea.

Juergen Freund / Spider crabs (two species of Achaeus sp). Lembeh Strait, North Sulawesi

Juergen Freund / Spider crab (Achaeus sp) Lembeh Strait, North Sulawesi, Indonesia

Juergen Freund / Orangutan crab (Achaeus japonicus) on bubble coral. Lembeh Strait, North Sulawesi, Indonesia.

Juergen Freund / Orangutan crab (Achaeus japonicus) in bubble coral (Plerogyra sinuosa) Kimbe Bay, Papua New Guinea, Indo-Pacific.

Juergen Freund / Spider crab (Xenocarcinus tuberculatus) on whip coral. North Raja Ampat, West Papua, Indonesia

Tim Laman / Spider crab (Achaeus sp.) with hydroid polyps placed on its legs for camouflage, at night. Raja Ampat Islands, Indonesia., April 2007

Graham Eaton / Spiny Spider Crab (Maja squinado) on a kelp covered pinnacle, in a rockpool, Abersoch, Wales, UK. May.

Georgette Douwma / Hydroid or Fairy crab (Hyastenus bispinosus) on Sea squirt where it has climbed to feed. It has decorated its body with hydroid polyps. Majidae - Spider or Decorator crab. Rinca, Indonesia

Georgette Douwma / Hydroid or Fairy crab (Hyastenus bispinosus) on Sea pen (Pteroides sp.) where it has climbed to feed on plankton floating past. It has decorated its body with hydroid polyps. Majidae - Spider or Decor...

Graham Eaton / Spiny Spider Crab (Maja squinado) amongst kelp, Cardigan Bay, Wales, UK, June

Juergen Freund / Soft coral crab / Dendronephthya crab (Hoplophrys oatesii) camouflaged on the tip of soft coral, Indo-pacific

Juergen Freund / Soft coral crab / Dendronephthya crab (Hoplophrys oatesii) camouflaged on the tip of a soft coral, Indo-pacific

Sue Daly / Spiny spider crab {Maja squinado} close up of mouthparts, Channel Islands, UK

Sue Daly / Spiny spider crab {Maja squinado} on seabed, Channel Islands, UK

GEORGETTE DOUWMA / Orang utan crab (Achaeus japonicus), Bali, Indonesia

GEORGETTE DOUWMA / Orang utan crab (Achaeus japonicus) on coral, Bali, Indonesia

Doug Perrine / Soft coral spider / Decorator crab {Hoplophrys oatesii} on soft coral {Dendronephthya sp} crab covered in live coral polyps for camouflage. Bali, Indonesia

Sue Daly / Leach's Spider Crab {Inachus phalangium} amongst tentacles of Snakelocks Anemone {Anemonis viridis} Jersey, Channel Islands, UK

Juergen Freund / Spider crab / Mickey mouse crab {Xenocarcinus tuberculatus} camouflaged on whip coral, Indo Pacific

Alan James / Spiny spider crab {Maja squinado} with Pulmose anemone, UK

Jeff Rotman / Decorator / Spider Crab (Achaeus spinosus) feeding on Alcyonarian Coral (Dendronephthya sp.) at night. Egypt, Red Sea.

David Hall / Soft coral spider crab camouflage on coral {Hoplophrys oatesii} Red Sea Egypt

Constantinos Petrinos / Soft coral spider crab {Hoplophrys oatesii} Sulawesi, Indonesia

Dan Burton / Spider crab {Macropodia rostrata} Plymouth, England, UK

Sue Daly / Shiny spider crab {Maja squinado} Jersey, Channel Is, UK St Aubins bay

Doug Perrine / Giant japanese spider crab {Macrocheira kaempferi} captive, from Japan, largest arthropod in the world

Juergen Freund / Decorator crab camouflaged with tunicates and soft corals, Indo-Pacific

Alan James / Spiny spider crab pair {Maja squinado} UK

Juergen Freund / Well camouflaged Spider crab, Indo-Pacific

Nick Upton / Moulted crarapaces and legs of Common spider crabs / Spiny spider crabs (Maja brachydactyla / Maja squinado) and moulted carapaces washed up on Rhossili Bay, with the Worm's Head in the background, Th...

Nick Upton / Moulted carapaces and legs of Common spider crabs / Spiny spider crabs (Maja brachydactyla / Maja squinado) washed up on sandy beach. Rhossili Bay, The Gower Peninsula, UK, July.

Nick Upton / Moulted carapace and legs of Common spider crab / Spiny spider crab (Maja brachydactyla / Maja squinado) washed up on sandy beach. Rhossili Bay, The Gower Peninsula, UK, July.

Roberto Rinaldi / Arrow crab (Stenorhynchus setircornis), Belize

Roberto Rinaldi / Arrow crab (Stenorhynchus setircornis), Belize.

Angelo Giampiccolo / Arrow crab (Stenorhynchus seticornis) on tube sponge at night, Belize Cayes, Caribbean.

Angelo Giampiccolo / Arrow crab (Stenorhynchus seticornis) in tube sponge at night, Belize Cayes, Caribbean.

Angelo Giampiccolo / Arrow crab (Stenorhynchus seticornis) on a tube sponge at night, Belize Cayes, Caribbean.

Angelo Giampiccolo / Arrow crab (Stenorhynchus setircornis) on tube sponge, at night in the Belize Cayos, Caribbean.

Angelo Giampiccolo / Arrow crab (Stenorhynchus seticornis) in a tube sponge at night, Belize Cayes, Caribbean.

Angelo Giampiccolo / Arrow crab (Stenorhynchus seticornis) inside tube sponge at night, Belize Cayes, Caribbean.

Roberto Rinaldi / Yellowline arrow crab (Stenorhynchus seticornis), on white gorgonian sea fan / lace sea fan (Eunicella singularis), Cayos Cochinos, Honduras.

Juergen Freund / Decorator crab catching plankton {Majiidae sp.} South Pacific, Philippines

Michael Pitts / Decorator / Spider crab {Camposcia refusa} on wreck Truk lagoon, Micronesia,

Constantinos Petrinos / Soft coral spider crab {Hoplophrys oatesii} on soft coral {Dendronephthya sp}

David Hall / Spider crab {Macropodia sp} decorated with stinging hydroids for defense. Red Sea

Juergen Freund / Red spider crab on fancoral (Menaethius orientalis) Indo-pacific

Constantinos Petrinos / Spider crab {Xenocarcinus tuberculatus} on Black coral Sulawesi Indonesia