Pascal Kobeh / Red spotted coral crab (Trapezia rufopunctata) hidden in a hard coral (Pocillopora sp.) New Caledonia, Pacific Ocean.

Magnus Lundgren / Wild Wonders of China / Coral crab (Trapezia rufopunctata) hiding in the hard coral, Xiaoliuqiu Island, Taiwan

David Fleetham / Red spotted guard crab (Trapezia tigrina), with eggs in antler coral (Pocillopora eydouxi), off the Island of Yap, Micronesia.

Alex Mustard / Red-spotted guard crab (Trapezia tigrina) in hard coral (Pocillopora sp.). Ras Torombo, Marsa Alam, Egypt. Red Sea

Alex Mustard / Red-spotted guard crab (Trapezia tigrina) female on a (Pocillopora sp.) coral. Seraya, Tulamben, Bali, Indonesia. Java Sea

Pascal Kobeh / Red spotted coral crab (Trapezia rufopunctata) hidden in a hard coral (Pocillopora ) Madagascar. Indian Ocean.

Alex Mustard / Red spotted coral crab (Trapezia rufopunctata) sheltering inside Coral (Pocillopora sp.) at night. Ras Katy, Sharm El Shiekh, Sinai, Egypt. Gulf of Aqaba, Red Sea.

Solvin Zankl / Red spotted guard crab (Trapezia tigrina) resting in Stone coral (Acropora sp) Raja Ampat, West Papua, Indonesia, Pacific Ocean.

David Fleetham / Red spotted guard crab (Trapezia tigrina) female carrying a tail full of eggs and defending its Cauliflower coral (Pocillopora meandrina) home from an attacking Crown-of-thorns starfish (Acanthaster...

David Fleetham / Red spotted guard crab (Trapezia tigrina), with eggs, in antler coral (Pocillopora eydouxi),, Yap, Micronesia.