Papuan Cuttlefish (Sepia papuenis) lives on sand and mud adjacent to coral reefs. It is recognised by the number and orientation of flaps of skin on the body and head. Watson's Bay, Lizard Island, 17 m, 13 Feb 2009, 2000 hrs. Image: Julian Finn. The Day Octopus (Octopus cyanea) is recognised by black false-eye spots and regular rows of white spots on the arms. It is the octopus most commonly seen by divers on the Great Barrier Reef. Coconut Beach, Lizard Island, intertidal, 10 Feb 2009, 0430 hrs. Image: Julian Finn. Pfeffer's Flamboyant Cuttlefish (Metasepia pfefferi) rarely swims, preferring to amble along the seafloor. The bright colour pattern is possibly advertising that it is distasteful or poisonous. Watson's Bay, Lizard Island, 16 m, 14 Feb 2009, 2030 hrs. Image: Julian Finn. The Plain-body Night Octopus (Callistoctopus aspilosomatis) gets its name from the absence of white spots on its body. It emerges during night low tides to forage in shallow pools. Coconut Beach, Lizard Island, intertidal, 9 Feb 2009, 0400 hrs. Image: Julian Finn. Dr Julian Caley on Lizard Island. Image: Angus Livingston. Lizard Island from the air. Image: Gary Cranitch.n.