big and little purple nudibranch hypselodoris apolegma next to each other

adorable animal apolegma art baby big bitung blue child couple cute eye family fish floor flower gastropod gills hypselodoris indonesia invertebrate kid lembeh light lighting like little looks margins mollusca molluscs mom next north nudibranch ocean organ petal pink plant purple sea slug slugs small snail species spots sulawesi tiny toy tropical tropics violet white yellow