Philippines (08-18Feb13) 0318_2.jpg
Apo Reef, Sulu Sea -- Unidentified comb jelly (ctenophore) floating in the open water, possibly a lobate as the two clearly visible lobes imply.
Ctenophores are found in most marine environments, from polar waters to the tropics, near coasts and in mid-ocean, from the surface waters to the ocean depths. No ctenophores have been found in fresh water.
Almost all ctenophores are predators. If food is plentiful, they can eat 10 times their own weight per day! Surface-water species prey on zooplankton (planktonic animals) ranging in size from microscopic molluscs and fish larvae, to small adult crustaceans such as copepods, amphipods, and even krill.