Genus Latirus, 385 



David Barclay, and Mr. Nicholas Pike. New Caledonia, 

 the Fiji and Society Islands, also supply a great many ; 

 and one very beautiful little species, of which there are two 

 specimens in the British Museum, is being described in this 

 paper under the name oiPeristernia Iniuensis^ from Iniue or 

 Savage Island, where it was collected many years since by 

 Mr. Perry. 



The coasts of Africa proper are strangely deficient in 

 species : though Mr. G. B. Sowerby has recently, in Xh^ Journal 

 of Conchology^ 1886, described L. Bairstowi and L. Rousiy 

 both good species from Port Elizabeth — and one from Natal 

 {P. leucotheci) is described in this paper. The Philippine 

 Islands, of course, supply a fair quota ; but I have never 

 seen a full list of species obtained from that extremely pro- 

 lific quarter. 



Some of the finest species occur there, e.g. craticulatus 

 (L.) lanceolatus (J^qqwq\ polygonus (Gmel.), recurvz'ros^rz's (S. 

 and W.), Peristernia castanoleuca (T. C), spinosa (Mart.), 

 nassatula (Lam.), etc., but many of these are of very wide 

 distribution. Indeed, it is quite remarkable how the areas 

 of a few kinds extend thousands of miles,* while others are 

 very restricted in their distribution. Japan boasts of the 

 iine L. Nagasakiensis (E. A. Smith), nearly allied to 

 craticulatus^ but I think distinct. A few are found in 

 Australia proper, P. Brazieri (Angas), a species of slightly 

 doubtful afifinity, L. gibbulus (Gmel.), smaragdulus (L.), 

 etc. In the Rev. A. H. Cooke's report on the Mollusca 

 dredged by the late R. Macandrew, Esq., in the Gulf of 

 Suez, only Latirus turritus (Gmel.) is mentioned besides 

 L. pulcher (Reeve) = Engina pulchra. 



(X.) Habits and Localities where found. — The localities 

 in which these molluscs usually congregate, are in rocks 



• Since writing this paper, Mr. G. B. Sowerby has forwarded me, for 

 identification, a specimen of Peristernia Smithiana (described in this paper as 

 new, from the island of Mauritius) as having come from Aden. 



