two nudibranchs tambja morosa mating in the reef of malapscua island

animal blue close closeup colorful coral critters daanbantayan dive diving fish images indonesia invertebrate island life macro malapascua malapscua marine mating mollusc morosa nature nudi nudibranch nudibranchs ocean philippines photography photos reef scuba sea seaslug slimy slug small snail tambja tambjamorosa tropic tropical two undersea underwater water waters wild wildlife world