
Beautiful feather star
Himerometra robustipinna
Stephanometra indica

The Indian feather star is a medium-sized feather star that is particularly common in the Indo-Pacific, from the Red Sea to Tonga.
Also known as: stephanometra indica
At night on top of corals, with the arms spread in a flat fan across the current; greyish white with bands of cream, brown or orange. Unlike Lamprometra palmata, the undersides of its arms are knobbly, and the long pinnules at the base of the arms are stiff and spine-like.
Its colour is fairly variable; typically it is greyish white with concentric bands of cream, brown or orange. It usually holds its arms in two parallel planes, like a fan, rather than as a bush or a crown.
Indo-Pacific from the Red Sea to the Tonga Islands, from the surface to 15 m and mainly in shallow water, though sometimes reported down to 73 m. It is found in tidepools, on rocky outcrops and under dead and living corals.
It is nocturnal. By day it hides under rubble and in the reef; at dusk it crawls to exposed perches such as the tops of corals and spreads its arms in a fan, more or less perpendicular to the current.
A suspension feeder.
It is extremely hard to tell apart from its close relative Lamprometra palmata, which shares its range and behaviour.
Describe what you saw and we name it, then keep every species you find in your Oceandex.