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

Alex Mustard / Coleman shrimps (Periclimenes colemani) pair, female on right, camouflaged in their Fire urchin (Asthenosoma varium) home, Batangas marine protected area, Luzon, Philippines. Verde Island Passages, Pa...

Alex Mustard / Coleman shrimp (Periclimenes colemani) female, with smaller male on left, living in a Fire urchin (Asthenosoma varium), Bitung, North Sulawesi, Indonesia, Lembeh Strait.

Alex Mustard / Coleman shrimp (Periclimenes colemani) female, with smaller male on left, living in a Fire urchin (Asthenosoma varium), Bitung, North Sulawesi, Indonesia, Lembeh Strait, Molucca Sea.

Henley Spiers / Coleman shrimp (Periclimenes colemani ) pair, resting within their Fire urchin (Astropyga radiata) host, Anilao, Mabini, Philippines, Pacific Ocean.

Alex Mustard / Pair of Coleman shrimps (Periclimenes colemani) living in Fire urchin (Asthenosoma varium). The female is the larger shrimp. Anilao, Batangas marine protected area, Luzon, Philippines. Verde Island Pa...