154 



lacowie and a valve at Corney Point. It has been dredged 

 by Dr. Verco, and seems to confine itself to Spencer and St. 

 Vincent gulfs. My specimens are not the largest found, 

 although I have them 45 x 25 mm. 



32. Chiton bednalli, Pilsbry, 1395. 



Chiton bednalli, Pilsbry: Nautilus, ix., 1895, p. 90; Bednall, 

 Proc. Mai. Soc, London, vol. ii., part 4, April, 1897; Sykes, 

 Proc Mai. Soc, London, vol. ii., part 2, July, 1896. 



This, the most beautiful of all South Australian 

 Chitonidce, may be only a colour variety of exoptandus, but 

 the uniformity of 4 its green colouring differs so much from 

 the pinkish tinges of exoptandus that it may well be classified 

 and named after the doyen of Polyplacophora writers in South 

 Australia. I have a specimen from Sultana Bay, a valve 

 from St. Francis Island, a valve dredged from 25 fathoms in 

 Thorny Passage, and several specimens dredged by Dr. Verco 

 in Gulf St. Vincent. Size, 40 x 20 mm. One specimen was 

 found by Mr. Kimber at Aldinga (South Australia), and 

 Mr. Sykes reports it from Port Philip. 



33. Chiton verconis, Torr and Ashby, 1898. 



Chiton verconis, Torr and Ashby, Trans. Rov. Soc, S.A., 

 1898, p. 215. 



This chiton strongly resembles the drawings of Chiton 

 huttoni, Suter, Trans. N.Z. Inst., vol. xxxviii., 1905, p. 321, 

 pi. xviii., figs. 1-6: but the slope of the tail valve is much 

 steeper in C. verconis, and the pointed girdle scales are 

 decidedly different. These scales are very similar to C. 

 limans, but in the latter there are no striations. C. verconis 

 has been dredged by Dr. Verco in Yankalilla Bay, 9 fathoms; 

 Rapid Head, 9 to 11 fathoms ; and in Spencer Gulf. All my 

 specimens have been dredged. Mr. W. D. Reed has dredged 

 it in Spencer Gulf, and it has been taken at Aldinga by Mr. 

 Kimber. I have a very fine specimen labelled Port Fairy 

 (Victoria), from the late Mr. Adcock's collection. 



34. Chiton oruktus, Maughan, 1900. 



Chiton oruktus, Maughan, Trans. Roy. Soc, S.A., 1900, p. 89. 



This shell has been found only on the south-east coast 

 of South Australia. One specimen comes from Cape Jaffa 

 and several have been taken at Port MacDonnell. It ought 

 to be in Victorian waters. Mr. Maughan's description is very 

 helpful, but the plates are very indistinct. 



