140 

 South Australian Polyplacophora. 



By William G. Torr, M.A., B.C.L. (Oxon.), LL.D. 

 (Dublin and Adelaide). 



[Read September 12, 1912.] 



Plates 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 having 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, S.A., 1900; W. T. Bednall 

 and E. H. Matthews, Proc. Mai. Soc, London, vol. vii., 

 part 2, June, 1906; Tom Iredale, Proc. Mai. 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 Mai. 

 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. 

 xxxv., 1911 ; Torr and May, Proc. Royal Society of Tasmania, 

 1912 ; Henry Suter, New Zealand Polyplacophora, Journ. 

 Mai., 1905, vol. xii., part 4; C. Hedley and A. F. Basset 

 Hull, Records Australian Museum, vol. vii., No. 4, 1909; 

 and Prof. J. Thiele (Berlin), Die Fauna Sudwest-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. Mai. Soc, London, 1897, 

 published thirty-seven species, of which one has been omitted. 



