Reaper cuttlefish, Sepia mestus     (Family Sepiidae)

Comment: Two cuttlefish displaying to each other

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

Depth: 11 m

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

Settings: @ 30mm, ISO200, 1/125s, f/16