140 
SOUTH AUSTRALIAN POLYPLACOPHORA, 
By Wittram G. Torr, M.A., B.C.L. (Oxon.), LL.D. 
(Dublin and Adelaide). 
[From “Transactions of the Royal Society of South Australia,” 
vol. xxxvi., 1912.] 
[Read September 12, 1912.] 
Puates V. to VII. 
I have been invited by the President of the Royal Society 
of South Australia, Dr. J. C. Verco, to write a paper on the 
Polyplacophora, or multivalve-molluscs, of South Australia. 
Since the publication of Mr. W. T. Bednall’s paper on 
“South Australian Polyplacophora” in the Proceedings of the 
Malacological Society of London, vol. ii., part 4, April, 1897, 
a great impetus has been given to this interesting study in 
South Australia, and numbers of collectors have been at work, 
the following haying written papers on the subject : — 
W. G. Torr and Edwin Ashby, Trans. Roy. Soc., S.A., 
1898; Edwin Ashby, Trans. Roy. Soc., S.A., 1900; M. M. 
Maughan, Trans. Roy. Soc., 8.A., 1900; W. T. Bednall 
and H. H. Matthews, Proc. Mal. Soc., London, vol. vii., 
part 2, June, 1906; Tom Iredale, Proc. Mal. Soc., London, 
June, 1910, and September, 1910. 
To these writers I make my acknowledgments, as well 
as to the publishers of Tryon’s Man. Conch., vols. xiv. and 
xv.; E. R. Sykes, on Victorian Polyplacophora, Proc. Mal. 
Soc., London, vol. ii., part 2, July, 1896; A. F. Basset 
Hull, Australian Naturalist, April, 1908; W. G. Torr, Wes- 
tern Australian Polyplacophora, Trans. Roy. Soc., S.A., vol. 
xxxy., 1511; Torr and May, Proc. Royal Society of Tasmania, 
1912; Henry Suter, New Zealand Polyplacophora, Journ. 
Mal., 1905, vol. xii., part 4; C. Hedley and A. F. Basset 
Huli, Records Australian Museum, vol. vii., No. 4, 1909; 
and Prof. J. Thiele (Berlin), Die Fauna Siidwest-Australiens, 
Band iii., Lieferung ii., 1911. 
There are other numerous references to Polyplacophora 
in various papers which I have examined : — 
G. F. Angas’ list, Proc. Zool. Soc., London, January, 
1865, consisted of fourteen species; of these four have been 
omitted as uncertain. 
D. J. Adcock’s list, published in 1893, contained 
eighteen species, of which eight have not been identified. 
Mr. Bednall, in the Proc. Mal. Soc., London, 1897, 
published thirty-seven species, of which one has been omitted. 
