81 



kindly lent me his co-types, so I am able to say that the Port 

 Lincoln shells are undoubtedly referable to that species, 

 although showing some slight variations. It is easily differ- 

 entiated from /. crispus by its small finely-striated scales. 



Ischnoclnton falcatus, Hull, 1912 (Proc. Roy. Soc. Vict., 

 vol. xxv., N.S., pt. 1, Aug., 1912). I have a specimen of 

 this shell marked Gulf St. Vincent, and have found amongst 

 my papers the commencement of a written description in my 

 own handwriting dated 1900, so the shell must have been 

 collected prior to that year. The strong ribbing in the 

 pleural area, and the coarse toothing of the posterior margin 

 of the lateral areas, easily distinguishes it from its congeners. 

 It is an interesting addition to the South Australian fauna. 



Ischnochiton milligani, Iredale and May, 1916 (Proc. 

 Mai. Soc, vol. xii., pts. 2 and 3, p. 109, Nov., 1916). This 

 shell, which is a subspecies of the well-known New South Wales 

 shell I. proteus, Reeve, for many years was wrongly labelled 

 in Australian collections "I. diver gens." We are indebted 

 to Dr. Torr, who has collected Polyplacophora throughout the 

 Australian States more extensively than any other worker, 

 for the addition to the South Australian fauna of this very 

 fine form. He obtained a single but splendid specimen at 

 Cape Northumberland in January, 1914. The measurements 

 are, 45 mm. x 21 mm. 



Haploplax pura, Sykes, 1896 (Proc. Mai. Soc, vol. ii., 

 pt. 2, July, 1896). I am glad to be able to record this as 

 a South Australian shell, having collected a single specimen 

 at Marino on February 12, 1917. I am indebted to Messrs. 

 Gatliff and Gahriel for its identification, they having com- 

 pared it with typical specimens in their collection. 



Heterozona subviridis, Iredale and May, 1916 (Proc 

 Mai. Soc, vol. xii., pts. 2 and 3, p. 105, Nov., 1916). I 

 am able to include this shell in the list of Victorian shells, 

 as in looking through with Mr. W. L. May a fine series 

 of Ischnochiton crispus sent me some years ago by Mr. Gabriel 

 from Back Beach, Phillip Island, Victoria, we were able to 

 pick out four specimens of Messrs. Iredale and May's shell. 



Rhyssoplax calliozona, Pilsbry, 1894, Torr in Trans. Roy. 

 Soc S. Austr., vol. xxxvi., 1912, gives measurement of 

 largest dried specimen as 55 mm. x 25 mm. I have 

 one collected at Cape Jervis on December 28, 1917, measuring 

 65 mm. x 35 mm., in splendid condition. It was accom- 

 panied by others of exceptional size. 



Rhyssoplax bednalli, Pilsbry, 1895. In addition to the 

 localities given by Dr. Torr (Trans. Roy. Soc. S. Austr., 

 vol. xxxvi., p. 154, 1912), I can add that of Warrenben, 

 in South Australia, from which I have one valve. 



