Juergen Freund / Coleman shrimp (Periclimenes colemani) on a Fire urchin (Asthenosoma varium) Moluccas Islands, Indonesia.

David Hall / Sea urchin shrimp on venemous urchin {Periclimenes colemani & Asthenosoma} Papua New Guinea

Birgitte Wilms / Coleman's Shrimp (Periclimenes colemani) camouflaged on Fire Urchin (Asthenosoma varium), Indonesia

Chris Newbert / Coleman's Shrimp (Periclimenes colemani) on Fire Urchin (Asthenosoma varium), Indonesia

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

Birgitte Wilms / Coleman's Shrimp (Periclimenes colemani) male and female on Fire Urchin (Asthenosoma varium) 90 feet deep, Indonesia

David Hall / Sea urchin shrimp (Periclimines colemani) on sea urchin, Indonesia - commensalism

David Hall / Sea urchin shrimp {Periclimenes colemani} on venemous urchin {Asthenosoma} Papua New Guinea

Hiroya Minakuchi / Coleman's Shrimp (Periclimenes colemani) living among the venomous spines of a sea urchin, Sulu Sea, Borneo, Malaysia

Birgitte Wilms / Coleman's Shrimp (Periclimenes colemani) pair with shed carapace, Papua New Guinea

Fred Bavendam / Fire Urchin (Asthenosoma varium) that is host to a pair of Coleman's Shrimp (Periclimenes colemani) and parasitic Snails (Leutzenia asthenosomae), Bali, Indonesia

Fred Bavendam / Coleman's Shrimp (Periclimenes colemani) pair living among the spines of a Fire Urchin (Asthenosoma varium), Milne Bay, Papua New Guinea

Fred Bavendam / Coleman's Shrimp (Periclimenes colemani) pair living among the spines of a Fire Urchin (Asthenosoma varium), Milne Bay, Papua New Guinea

Fred Bavendam / Coleman's Shrimp (Periclimenes colemani) pair living in venomous spines of a Fire Urchin (Asthenosoma varium), Bali, Indonesia

Constantinos Petrinos / Sea urchin shrimp {Periclimenes colemani} on Sea urchin {Asthenosoma varium} Indonesia Sulawesi

Juergen Freund / Commensal Sea urchin shrimp {Periclimes colmani} amongst spines of poisonous sea urchin. Indo-Pacific

Norbert Wu / Coleman's Shrimp (Periclimenes colemani) hiding among venomous spines of Fire Urchin (Asthenosoma varium), Komodo, Indonesia

Norbert Wu / Coleman's Shrimp (Periclimenes colemani) hiding among venomous spines of Fire Urchin (Asthenosoma varium), Komodo, Indonesia

GEORGETTE DOUWMA / Sea urchin / Coleman's shrimp {Periclimenes colemani} male and female in Fire sea urchin, Indo Pacific

Constantinos Petrinos / Venomous sea urchin {Asthenosoma varium} Sulawesi note shrimps {Periclimenes}

Carine Schrurs / Sea urchin (Coleman) shrimp pair in Fire urchin host. Anilao Batangas Philippines

Constantinos Petrinos / Commensal Coleman shrimp {Periclimenes colemani} on Toxic sea urchin. Philippines

Constantinos Petrinos / Toxic sea urchin {Asthenosoma varium} with commensal Coleman shrimps. Batangas Philippines