Commensal Shrimp associated with Starfish, Periclimenes soror, Ambon, Moluccas, Indonesia

Sea star shimp (Periclimenes soror), on a crown-of-thorns starfish (Acanthaster planci), Yap, Micronesia, Pacific

A sea star shimp (Periclimenes soror), swims through a forest of spines on the back of a crown-of-thorns starfish, Micronesia, Pacific

A tiny shrimp (Periclimenes soror) lives on a pin-cushion starfish in Raja Ampat, Indonesia. This remote, tropical region is home to extraordinary marine biodiversity.

Commensal shrimp (Periclimenes soror), on a seastar, La Paz, Baja California, Mexico, Sea of Cortez, North America