blue spiny starfish - coscinasterias tenuispina

absnaturalhistory adriatic adventure aegean alive animal animals aquatic arms asteriidae asteroidea atlantic background biodiversity biology blue brown capture catalonia coast coastal color colorful colour coscinasterias creature decoration dive echinoderm echinoderms ecosystem environment europe european exotic fish forcipulatida invertebrate invertebrates inverts life marine marthasterias mediterranean natural nature ocean organism photo photography reef salt saltwater sand scene scuba sea seashore seastar shore snorkel snorkeling spain spiny star starfish starfishes tenuispina tidal tropic tropical under undersea underside underwater water wild wilderness wildlife zoology