Nudibranch feeding on algae, Papua New Guinea.

papua new guinea phyllidia picta algae animal markings animal themes animals in the wild aquatic bumpy close up color image coral coral reef eating gastropod horizontal ichthyology invertebrate living organism marine biology mollusk nature no people nudibranch one animal outdoors photography reef rhinophore sea sea life sea slugs species spotted tropical climate tubercle undersea underwater warty sea slugs wildlife yellow zoology