Sea Stars Of The Pacific North West

Class Asteroidea
Order Valvatida
Family Goniasteridae

VERMILION STAR

Mediaster aequalis

Identification:
5 well-defined arms (rarely, 4 or 6 armed specimens) with a flat disc. Aboral side vermilion red and covered with tightly packed flat-topped plates bearing tiny granules. To 20 cm (8 in) across.

Range:
Northern Alaska to southern California; intertidal to 500 m (1,650 ft).
Notes:
Common. Eats a wide variety of living prey such as sponges, brachiopods, worms, bryozoans, tunicates and orange sea pens. It also scavenges dead animals and consumes detritus.