280 STUDIES ON AUSTRALIAN MOLLUSCA, xi., 



This species was reviewed and renamed by Mr. J. Brazier. His 

 conclusions are involved. For Z. comptus A. Adams he proposed 

 a new name, for the reason that it was preoccupied by Philippi. 

 This new name was already used in the genus by Pilsbry. In a 

 footnote Brazier reverses the decision of the text by adopting the 

 view of Mr. E. A. Smith, that the specific name of Adams should 

 be maintained, because that of Philippi was published one year 

 later. 



Six months previous to Mr. Brazier's paper, accepting the state- 

 ment that Z. comptus was New T Caledonian and was synonymous 

 with Z. poupineli Montrouzier, I proposed to call the Sydney shell 

 Calliostoma purpureocinctum. 



On re-examining the question I find that in the first place the 

 names proposed by Philippi and by Adams are spelled differently, 

 and may both be maintained. The dates supplied to Brazier are 

 wrong, and the precedence reversed. For Philippi's name appeared 

 thus: — u Trochus comtus Philippi, Zeit. f. Malak., viii., 1851, p. 

 42" (July, 1851), and that of Adams thus: — "Ziziphinus comptus 

 A. Adams, Proc. Zool. Soc, 1854, p. 38" (Jan. 10th, 1855). 



From an inspection of the type in the British Museum of Z. 

 comptus, I recognised it as the Sydney species. I have been unable 

 to see Trochus poupineli Montrouzier, but I accept Brazier's state- 

 ment that it is distinct from C. comptus, and that Adams erred in 

 assigning comptus to New Caledonia. This error was repeated in 

 the same volume when Adams described the Australian Pisania 

 reticulata as from New Caledonia. 



In conclusion, I consider that Calliostoma comptum A. Adams 

 should be restored for the Australian shell I described and figured 

 as C. purpureocinctum, and which Brazier renamed Trochus 

 adamsi. 



Calliostoma punctulosum A. Adams. 



(Plate xvii., fig. 47.) 



Cantharidus punctulosus A. Adams, Proc.,Zool.Soc. 1851 (1853), 

 p. 169. C. articularis A. Adams, loc. cit. 



