Victorian Chitons. 151 



1917, and »they corrected the mis-identification of Sykes in voL 

 xxx., pt. i., of these Proceedings. 



Ischnochiton torri, Iredale and May, appears in Sykes' paper 

 as Ischnochiton ustulatus, Reeve. 



Note. — Mr. W. L. May has referred me to a note contained 

 in a letter addressed to himself by Mr. Tom Iredale on 26th 

 April, 1916, which reads : " Ustulatus, Reeve, has girdle scales 

 almost as large as decussatus, and specimens dredged in Port 

 Phillip almost exactly agree. Sykes recorded it, and I think he 

 was right." Mr. Jas. A. Kershaw has been good enough to return 

 to me for further examination the specimen Sykes so determined,, 

 as, in the first examination, I cannot remember having paid par- 

 ticular attention to the girdle scales. This second examination 

 confirms my earlier determination; the scales are quite typical, 

 and it in every respect corresponds with the South Australian 

 shells named by Iredale and May Ischnochiton torri. 



Ischnochiton crispus, Reeve. Identified as such by Sykes, 

 Specimens are large, not very well preserved, typically varied, 

 one form being described by Sykes as variety decoratus. Type 

 No. 890. 



Ischnochiton crispus, Reeve, var. decoratus, Sykes. 



Ischnochiton falcatus, Hull, mis-identified by Sykes as /. 

 tateanus, Bed. While this interesting shell, so well described by 

 Mr. A. F. Basset Hull, is easily separated from /. tateanus, a good 

 many workers have at times confused them. The latter has the 

 serrations of posterior margins of median valves " file like," and 

 falcatus straight. 



Ischnochiton wilsoni, Sykes. Type. One of Sykes' new species, 

 and a very fine one too, and still a rarity. 



Ischnochiton iredalei, Dupuis, Auct. Hneolatus, Blainville. Ire- 

 dale and May, Auct., contractus, Reeve, Pilsbry, and identified 

 as /. contractus, Reeve, by Sykes. Many of these specimens are 

 so stained that identification is not very accurate. 



Ischnochiton virgatus. Reeve. Marked in Sykes' list as Ischno- 

 chiton (?) sp. 



Ischnochiton (Haploplax) pura, Sykes. Type. This is still 

 a rare species, and up to the present, only taken in Victoria. 



Ischnoradsia evanida, Sowerby. Identified by Sykes as /. aus- 

 tralis, Sow., of which it is a sub-species. 



Hetcrozvna cariosus,, Pilsbry. A good series identified under 

 this name by Sykes. 



