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

Scavenging sea stars and a humpback shrimp (Pandalus hypsinotus) working on the remains of a rock crab, Canada, North America

A Harlequin Shrimp (Hymenocera elegans) holding part of a blue seastar (Linkia laevigata) which it will feed on, Philippines

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