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

Juergen Freund / Tiny reef crab on soft coral, West New Britain, Papua New Guinea.

Juergen Freund / Hermit crab with shell covered in soft coral (Heteroxenia fuscescens) Lembeh Strait, North Sulawesi, Indonesia

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

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

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

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.

Juergen Freund / Soft coral crab on soft coral (Dendronephthya) West Papua, Indonesia.

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

Georgette Douwma / Small crab perched in soft coral. Rinca, Komodo National Park, Indonesia. October

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

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

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

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

Juergen Freund / Hermit crab on soft coral (Paguridae) Pacific Canada

Chris Newbert / Crab (Naxioides taurus) on Soft Coral (Dendronephthya sp) at night, 40 feet deep, Red Sea, Egypt

Norbert Wu / Spider Crab feeds at night among soft coral polyps, Red Sea, Egypt

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