Pale Banded Snail or Figuladra mattea
There is not much about it on the Internet and I don't have a reference book on Molluscs.
The shell is quite striking with alternating dark and pale bands. This shell was empty,
but I have found others here with a "resident".
This afternoon on a walk in my favourite local bushland ( Mt Petrie) this wallaby was fairly unconcerned about my presence :
Another "spotting" was this butterfly near some milkweed
It is a Lesser Wanderer or Danaus petilia .
The usual website of http://www.brisbaneinsects.com/brisbane_nymphs/LesserWanderer.htm has information and better photos than I managed to take