Pot-bellied seahorse, Hippocampus abdominalis     (Family Syngnathidae)    

Location: The Monuments, Kurnell, New South Wales, Australia

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

Settings: @ 55mm, ISO200, 1/125s, f/16