Mosaic sea star, Plectaster decanus     (Family Echinasteridae)

Location: Oak Park, Cronulla, New South Wales, Australia

Depth: 5.4 m

Equipment: Nikon D300 with Nikkor 18-55mm f/3.5-5.6G ED II in Ikelite housing and 2 x Ikelite DS125

Settings: @ 18mm, ISO200, 1/100s, f/20