This coiled thin shell with pale orange bands is that of a marine gastropod/snail that lives in a coiled tube. The snails resemble tube worms (polychaetes) because of the structure but are in a different family. The tube is usually cemented to other structures. Unlike other snails, this species does not have an operculum or lid.
This rather large snail was found at the side of a track near our friend's property. They transported it to me to try and identify it. Just from looking at lots of snail photos, I think it is a Pygmipanda species, possibly P. kershawi and Reiner Richter, on Bowerbird website, also agrees with that identification.
Many of these were found on small rocky areas near an ocean beach at low tide.
About 20mm diameter, mostly matte black.
Ocean/bay beach on a small patch of sedimentary rocks.
No operculum was found nor live specimens so species ID is difficult.