180 ON A NEW MUREX FROM SOUTH AUSTRALIA. 



A. Ad. The error in the name of this species appears to have 

 orfcinated with Mr. Angas in 1865; if he had taken the trouble 

 to Imve compared the South Australian shell with Murex pumilus, 

 A. Ad., from China, in the British Museum, he would have seen 

 at a glance that they were distinct species. The present species, 

 M. 2)oli/2)leicrus, Braz., is not in the British Museum, and that on 

 the good authority of my valued friend and correspondent Mr. 

 Edgar A. Smith. M. 2yuniilus, A. Ad., is a much narrower and 

 shorter shell, having the canal slightly turned up and crossed by 

 scabrous spiral ridges. 



Sowerby in the Thes. Conch. Vol. iv. pi. 400, fig. 200, has 

 enlarged Murex j^uinilus to more than twice the actual length of 

 the shell, and the figure is very coarsely executed. The best 

 figure of it is given by Mr. E. A. Smith in the Report of the 

 Zoological Collection of the Voyage of H.M.S. "Alert," p. 491, 

 pi. 44, fig. D, from Darros Island, Amirantes, in 22 fathoms, on 

 a broken-coral bottom (H.M.S. "Alert"), China Sea (A. Adams). 



