This poor guy is suffering war wounds of love as he and many other suitors battle it out for the available girls.
There seems to be a lot of cuttlefish activity at the moment with both males and females engaging in all sorts of games.
If you look closely here you will notice translucent lumps all over his body where other males have taken chunks. The translucent colour is due to the lack of chromatophores in the wounded area.
He's fairing pretty well I'd say and will be up for a lot more before the season is over.
Giant Cuttlefish, (
Sepia apama), Rapid Bay, South Australia
Photo: Robert Rath, 'Wounded One' 1/100s f/8.0 ISO160 50mm