A beautiful Blue Velvet Head Shield sea slug (Chelidonura varians) crawls across a sandy seafloor near Alor in the Lesser Sunda Islands of Indonesia.

aglajidae alor animal animal themes beauty in nature black blue cephalaspidea chelidonura varians color image coral triangle day flores full length gastropod headshield slugs horizontal indonesia komodo lesser sunda islands marine biology mollusk muck nature no people nudibranch ocean ocean floor one animal pacific ocean philinoidea photography sand sea sea life sea slugs seabed seascape side view southeast asia sumbawa undersea underwater wildlife zoology