OK thanks - can see the shell surface much more clearly now. It is a member of the Camaenidae family and Austrochloritis genus. You can see the very fine setae (hairs) over the shell surface. It belongs to the Austrochloritis abrotonus group from that location. This is the furthest west that species group has been found. A related species is found in the Tallaganda National Park and another nearby NP called Gourock NP I think. Much further west in the western edge of Canberra, Namadgi NP and Brindabellas you get a different species belonging to the Austrochloritis koscziuskoensis species group. I might visit the area over the next few months to get living material for DNA and anatomical dissection. Thanks for posting this.
danswell that would be wonderful if you could get hold of any live specimens - particularly adults - as we don't have any Austrochloritis specimens from that area. I will ask out senior research scientist and my co-author about it, he is a geneticist.