Cerberilla nudibranch, Tulamben, Bali, Indonesia.

aeolid nudibranch aeolidiidae aeolidioidea animal animal themes animals in the wild aquatic bali cerata cerberilla cladobranchia close up color image day full length gastropod heterobranchia horizontal indonesia invertebrate macro marine biology mollusk no people nudibranch one animal outdoors photography sea sea life sea slugs sea snails side view snail southeast asia tulamben undersea underwater wildlife zoology