Cushion Sea Star | ©MacChristiansen
A bunch of Cushion Sea Star (also named Carpet Sea Star or Eight-armed Sea Star) from New South Wales, Australia.
These sea stars belong to Patiriella calcar species (Echinodermata - Asteroidea - Valvatida - Asterinidae), a moderately large seastar with clear-cut, short, tapering, pointed arms.
Patiriella calcar normally has eight arms, but sometimes 7 and 9 armed individuals are found. The color on top is extremely varied and often beautiful.