© Aaron Baldwin (Photo ID #4271)
Photographer's Submitted Details
Auke Bay, Alaska
Muddy bottom, around 50 meters
March 17, 2004
September 19, 2008
Photo ID #
This is a closeup of the head of the shrimp showing the amphipod, Polycheria species. The amphipod clings to the tail fan when the shrimp is swimming. Most members of the genus Polycheria are commensal in sponges, so this association is unusual.