Juergen Freund / Zebra / Adam's urchin crab with eggs (Zebrida adamsii) on Fire sea urchin (Mespilia globulus), Komodo NP, Indonesia, Indo-pacific.

David Fleetham / Adam's urchin / Zebra crab (Zebrida adamsii) carrying eggs under its body on a venomous Radiant sea urchin (Astropyga radiata). Rinca island, Komodo National Park, Indonesia.

Alex Mustard / Poisonous spines of Magnificent fire urchin (Asthenosoma ijimai) with Zebra urchin crab (Zebrida adamsii) sheltering, Anilao, Batangas, Luzon, Philippines. Verde Island Passages, Tropical West Pacific...

Franco Banfi / Urchin crabs (Zebrida adamsii) in Fire urchin (Asthenosoma varium) Raja Ampat, Irian Jaya, West Papua, Indonesia, Pacific Ocean

Chris Newbert / Coleman's Shrimp (Periclimenes colemani) and Adam's Urchin Crab (Zebrida adamsii) on Fire Urchin (Asthenosoma varium), Indonesia

Georgette Douwma / Adam's urchin crab (Zebrida adamsii) on Fire urchin (Asthonosoma varium), Rinca, Indonesia

Georgette Douwma / Adam's urchin crab (Zebrida adamsii) on Fire urchin (Asthenosoma varium), Rinca, Indonesia

Georgette Douwma / Two Adam's urchin crabs (Zebrida adamsii) on Fire urchin (Asthonosoma varium), Rinca, Indonesia

GEORGETTE DOUWMA / Adam's Urchin crabs (Zebrida adamsii), pair on a False fire urchin (Astropyga radiata). Lembeh Strait, North Sulawesi, Indonesia

Constantinos Petrinos / Adam's urchin crab {Zebrida adamsii} on sea urchin {Astropyga radiata} Indonesia, Sulawesi

Gary Bell/ Oceanwide / Adam's Urchin Crab (Zebrida adamsii) pair on Fire Urchins (Asthenosoma varium), Lembeh Strait, Indonesia

Norbert Wu / Adam's Urchin Crab (Zebrida adamsii) living among venomous spines of sea urchin, Komodo Island, Indonesia

David Fleetham / Zebra urchin crab (Zebrida adamsiiname) camouflaged, sitting on a crinoid, Yap, Micronesia, Pacific Ocean.