Linckia laevigata Linnaeus 1758
blue seastar
Linckia laevigata, blue seastar

family Ophidiasteridae

The brilliant blue seastar, Linckia laevigata, has a small central disc and long thin arms. Its colour can sometimes be much paler. It is a scavenger and feeds on algae. It often has tiny commensal starfish shrimp on lower surface of the arms, near the mouth.

Distribution =   widespread Indo Pacific and northern Australia
Max size =   locally to about 30cms across