860-289050 - Shrimp on Jellyfish. An unidentified Shrimp rides on a Jellyfish. Photographed on a black water drift dive in 30 feet of water with the bottom more than 500 feet below. Palm Beach, Florida, U.S.A. Atlantic Ocean.
1116-39726 - The Bubble Coral Shrimp (Vir philippinensis) is found only on this species of coral, Pleurogyra sinuosa. The brown oval objects are actually Acoel Flatworms (Waminoa sp) that feed on nutrients trapped in mucus covering the coral, Philippines
1116-39729 - Both a Crinoid Commensal Shrimp (Periclimenes cornutus) and a Crinoid Squat Lobster (Allogalathea elegans) on a crinoid. These tiny crustaceans are commensal on crinoids or feather stars and take their color from the host, Philippines