No attempt has yet been made to arrange
the freshwater shells of Tasmania. The land shells have
been carefully catalogued by Mr. Legrand, so that little
remains to be desired in that department of our island fauna.
The marine shells have received much attention from most
eminent naturalsts, though a list carefully criticised, with a
well arranged account of the bibliography is much wanted.
But the freshwater shells have been almost entirely neglected.
There have been one or two descriptions of Physa in Reeve,
and one or two other notices of species scattered through
various scientific publications, but the majority of the shells
here described are new to science
