Estimated diameter 25cm
At the California Academy of Sciences.
These beautiful sea stars of different pastel colors were most plentiful here in Bicheno, although I did see a few others elsewhere.
After large storms this weekend there were 100s of these stars on the rocky beach. A few were still alive (barely) but most were dead. I've never seen them on the beach before.
Arms about 2".
Found this sea star along with several other species on and around the rocks during an extremely low tide at Sheep's Point in Simpson Bay, Prince William Sound, about 7 miles north east of Cordova, Alaska.
Starfish or sea stars are echinoderms belonging to the class Asteroidea. The names "starfish" and "sea star" essentially refer to members of this class. However, common usage frequently finds these names being also applied to ophiuroids, which are correctly referred to as "brittle stars" or "basket stars". About 1,500 living species of starfish occur on the seabed in all the world's oceans, from the tropics to subzero polar waters. They are found from the intertidal zone...