Appearance
This starfish has a wide variety of colour forms but tends to be cryptic. It is typically symmetrically patterned with distinctive spots, some running laterally around the starfish's margin and others in rows which run down the five arms. In one colour morph, the spots on disc and arms were dark purple and those near the tips of the arms were reddish. The tip of each arm curls upwards, and the tube feet near the tip seem to have a chemosensory function.

