Phyllidia coelestis nudibranch on blue background, Beqa Lagoon, Fiji.
Nudibranch feeding on algae, Papua New Guinea.
A vibrant nudibranch, Phyllidia sp., feeds on sponges on a coral reef in the remote, tropical islands of Raja Ampat, Indonesia.
A colorful nudibranch, Phyllidia varicosa, crawls on a black sand seafloor in Alor, Indonesia.
Nudibranch Eye-spotted warty snail (Phyllidia ocellata) crawls through coral reef in search of food, Indian Ocean, Mascarene Islands, Mauritius, Africa
