Dead beach washed specimen showing smooth carapace when 'hat' has been removed.
Date approximate only(definitely mid to late autumn, and I am 99 %sure re year but if not 1991 then 1990).Scuba dive under jetty. Depth about 4m. Crab was on a lower flatter part of same very large composite red sponge in a spot that prevented decent imaging so I moved it gently onto taller more open part of same sponge. Then returned it to where found.(This jetty is 'sponge central station' WRT diveable SA jetties)
Sighting and photos (c) newspapervillage.
Sighting and photos (c) sally8.
Late arvo snorkel near township beach,along rocky edge with sandy bottom.
Recently deceased - chromatophores still pulsating.
There have been numerous - perhaps hundreds - of juvenile Cuttle-bones washed-up following the recent stormy weather.
@danimations - do you want this one for the study ... it's in the fridge?
The skin had dried to an interesting shade of burgundy.
Re ID, I read everything I could find online (mainly by @danimations) and came to the conclusion that apama was the only option ... I'm sure Dan will correct me if that's wrong.
Night dive
It was tiny, only about 2-3 cm long and swam head first in "leaps" at a time