318 MR. E. A. SMITH ON THE [Apr. 1, 



I have been unable to discover the existence of any island of that 

 name near New Guinea, although that region would be a correct 

 habitat for this species. Perhaps " new " should read near, which 

 would then clear up the doubt with regard to Ascension Island, but 

 I very much question the occurrence of this shell in the Atlantic. 



All the species enumerated hereafter, with the exception of the 

 three species of Marginella and lanthina globosa, are represented 

 in the British Museum by specimens from Ascension Island. Tlie 

 greater part were received from Staff-Surgeon T. Conry a few years 

 ago, and partly recorded in the Ann. & Mag. Nat. Hist, for 1881, 

 vol. viii. pp. 430, 431. 



I. GASTROPODA. 

 PisANiA pusio (Linne). 



Two specimens of this common species were obtained by Dr. 

 Conry, which agree in all respects with typical examples from tlie 

 West Indies. It has not, I believe, been noticed before from the 

 eastern side of the Atlantic. 



CoLUMBELLA (Mitrella) cribraria, Lamarck. 



Hab. Ascension {Quo]/ 4" Gaimard, Kiener). 



The four specimens of this species are of a very dark or black- 

 brown colour, and pale-spotted in the usual way. It is common at 

 the West Indies. 



Purpura ascensionis, Quoy & Gaimard. 



Hab. Ascension Island {Q. 4' ^-j Kietier, Kiister, &c.). 



This species has not, I beheve, ever been recorded from any other 

 locality than Ascension Island. Two specimens sent by Capt. Turton 

 from St. Helena are in a very worn state, and were obtained by him 

 near the harbour at Jamestown, so, as he observes in his notes, 

 •' perhaps they are not true natives." 



Purpura Helena, Quoy & Gaimard. 



The specimens obtained by Dr. Conry are not quite like Reeve's 

 type ofj'asciata (a synonym of this species), having the tubercles 

 r,;ther more distant, the brown colour of n darker tint, and the 

 blotches within the outer lip much more pronounced ; but this may 

 be due to the fact that none of the specimens aj)pear to be adult. 



Harpa rosea, Lamarck. 



Ascension Island appears to be a new locality for this shell, which, 

 as far as is at present known, has a limited range on the West Coast 

 of Africa. Kiener cites " les mers du Japon " as the habitat, but 

 this is certainly incorrect. 



Ranella ccelata, Broderip. 



Hab. Ascension (Conrt/). 



a. pustulosa is a variety of this species. 



