56'/ 



TROCnUS A DAM SI FROM PORT JACKSON, AND NEW 

 VARIETIES OF BULJMUS MILTOCHEILUS FROM 

 THE SOLOMON ISLANDS. 



By John Brazier, F.L.S., C.M.Z.S. 



The Ziziphinus comptus* of A. Adams, has been severally stated 

 to occur in New Caledonia and Port Jackson. It is probable 

 that the type of Adams' species was collected by Mr. Fred. 

 Strange in Port Jackson and not in New Caledonia, just as Z. 

 scituhts ( = AsteJe scitula) was collected in Port Jackson and not 

 in New Zealand, and Pismiia rHicvlata in Tasmania and not New 

 Caledonia as quoted by Adams, as has been definitely ascertained. 

 From a careful comparison of specimens with the several descrip- 

 tions and figures I feel convinced that the shells characterised by 

 these three authors refer to one and the same species. 



The late Dr. Fischer of Paris was the first to confound the Z. 

 comphis of Adams with Trochus Poupineli, Monti'ouzier, from 

 New Caledonia, misled, no doubt, by the erroneous locality 

 recorded b}^ Adams, and thi'ough not giving due credence to the 

 excellent figure by Reeve. 



It is very evident that Fischer never compared a specimen of 

 Adams' species with either the descriptions or figure of Z. comptiis, 

 otherwise he would have doubtless noticed that the beaded or 

 granulose lirse are much coarser and larger on comptiis, and that 

 those above and below the suture are much larger; that it is 

 distinctly canaliculated at the suture; that the last whorl possesses 

 nine rows of brown-spotted lirtv. 



* Specimens of this species found by me living on Sliark Island, Port 

 Jackson, and sent to Mr. Aneas in 1870, were determined by him as the 

 same as the type of Z. comptus, A. Ad., in the Cuming Collection, British 

 Museum. 



