374 Transactions. 



The small size and constant coloration induced me to sepa- 

 rate these shells from /. longicymba, Q. and G. At that time 

 I did not know of the existence of /. fulvus, Suter, and conse- 

 quently these specimens remained unnamed in my collection. 



At Shag Point, Otago, and all round the Otago Peninsula 

 this species is abundant. It usually lives on clean smooth 

 stones, unassociated with /. longicymba, Q. and G. When the 

 two occur on the same stone, /. fulvus, Suter, is on the clean* 

 edge, whilst /. longicymba, Q. and G., is on the muddy side 

 underneath. 



I. fulvus, Suter, is as variable as regards colour as almost 

 any other Chiton, but is almost always unicoloured ; it runs 

 through all the shades from pure-white through pale-yellow to 

 fulvous and red-brown. The most striking shell, however, is 

 a deep-green, with a green-and-white girdle. 



I might here point out that very probably two or three 

 species are doing duty in New Zealand collections for /. longi- 

 cymba, Q. and G. 



Whilst closely searching for Chiton stangeri, Peeve, I ob- 

 tained a small-keeled Ischnochiton which I have not again found. 

 I have, however, found another species of Ischnochiton which I 

 have not been able to identify with any Australian species. 

 This is a low-keeled species, with the lateral areas sculptured 

 like I. divergens, Reeve, and a peculiar pattern of coloration. 



Callochiton platessa (Gould). 

 Callochiton platessa (Gould), Suter, Proc. Mai. Soc, vol. ii, 



p. 184, 1897. 



This quotation gives full references, and is the only record 

 of this Australian species in New Zealand. The specimen there 

 referred to is of unknown habitat, and was obtained prior to 

 1872. 



The refinding of this species is, therefore, worthy of record. 

 Collecting at Shag Point, Otago, with Mr. W. R. Brook Oliver, 

 he found one specimen, and afterwards I obtained two more. 

 These were obtained from under stones at the bottom of a deep 

 rock-pool. I identified these from specimens from Port Jack- 

 son, New South Wales. 



This makes the third species of Callochiton I have obtained 

 whilst littoral collecting — a curious circumstance when it is 

 remembered that all the previous records of this restricted 

 genus in New Zealand refer to dredged specimens. 



In the same pool that contained the C. platessa was found a 

 single specimen of a new species of Acanthochites. This species 

 is too well characterized to be the second species of Acantho- 

 chites mentioned by Pilsbry (Man. Conch., ser. i. vol. xv, p. 16). 



