spiny starfish - (marthasterias glacialis)

creatures fauna diving white coral biology conservation mollusk diversity tropic one azores wild scene ecosystem echinoderms inverts adriatic natural brown water atlantic ocean animal underwater starfishes colorful creature glacialis color echinoderm isolated life spiny invertebrates aquatic forcipulatida tenuispina fish scilly isles blue seastar environment aquaculture tropical mediterranean aquarium aegean asteriidae seaweed nature star marthasterias coscinasterias wildlife starfish saltwater invertebrate exotic asteroidea sea marine oceanography undersea seawater aquaworld large narrow tapering arms rows longitudinal spines arm tip