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.
A hot pink starfish found on a SW Florida beach. Apparently, starfish can be the most amazingly intense colours but they fade quite rapidly when they get washed up. This one can't have been out of the sea for long then!