Guardian Nature School Team Contact Blog Project Noah Facebook Project Noah Twitter

A global community of nature enthusiasts
photographing and learning about wildlife

Join Project Noah!
nature school apple icon

Project Noah Nature School visit nature school

Cushion sea star

Oreaster reticulatus


A large seastar with a central disc from which its five tapered arms radiate. The cushion seastar can grow up to 0.50 m in diameter, depending on food availability. The seastar's body is covered by a hard outer shell with knobby spines, or ossicles, that extend away from the surface. Oreaster reticulatus is not polymorphic and can be easily distinguished from closely related species by their hard shell and short tapered arms. Individuals vary in color and can be brown, red, orange, or yellow. The juveniles are green, which provides camouflage from predators.


Colson Cay, Belize

Species ID Suggestions

Sign in to suggest organism ID

No Comments

Spotted by


Spotted on Oct 18, 2013
Submitted on Nov 26, 2013

Noah Guardians
Noah Sponsors

Join the Project Noah Team Join Project Noah Team