Clown anemonefish in gigantic sea anemone.  

(Observation Point, Milne Bay, Papua New Guinea)

fish; damsel; damselfish; anemonefish; clown anemonefish; Chordata; Osteichthyes; Perciformes; Pomacentridae; Amphiprion percula; symbiotic behavior; 

cnidarian; anemone; hexacoral; sea anemone; gigantic sea anemone; Cnidaria; Anthozoa; subC Zoantharia or Hexacorallia; Actiniaria; Stichodactylidae; Stichodactyla gigantea, South Pacific