white sea slugnudibranch - elysia timida

adriatic aegean albania algae animal aqua atlantic barcelona behavior bottom close closeup coral creation croatia diving elysia europe exotic gastropod greece green image invertebrate invertebrates inverts ionian island italy lif life live living macro marine mediterranean micro mollusk moving nature nudibranch ocean one opisthobranch organism outdoors photo photography picture reef ruffled sacoglossan saltwater sand sapsucking scene scenes scenic scuba sea seaslug shot slug small spain spots submarine symbiotic timida tiny tropic tropical tuscany ultra underwater water white wild wildlife world