Observations by sea-kangaroo

Tiny one.

Lots of fallen plant stuff. Sometimes clumps like this, sometimes individual segments.

Last two shots have a smaller, different snail species as well, which has its own observation here: https://www.inaturalist.org/observations/207084773

For the smaller snails without an umbilicus.

The larger Magnolia Threetooth snail has its own observation here: https://www.inaturalist.org/observations/207084775