400 Genus Latirus, 



Hab. Ins. Sandvichenses. 



This is an extreme form of P. stigmataria (A. Ad.), from 

 which it differs in its greater elegance of form, delicacy of 

 appearance, and more regular transverse liration. It is 

 impossible, in any figure, to do justice to the extreme 

 beauty of this shell. I have two specimens in my collec- 

 tion, from the larger of which the figure in the plate is taken, 

 and there are some specimens in the National Collection, 

 from the locality mentioned above. 



II. Peristernia Iniuensis, j/. nov., (Fig. lo). 



P. testa ovato-fusifonni, roseo-tznctdy anfractibus seXy 

 subventrzcoszs, longitiidinaliter plicato-costatis^ tranversim 

 crassisulcatis^ apice roseo, labro intits crenulato^ aperturd ovatdy 

 columella fortiter triplicatd. 



Long. 7'5o mm. 



Lat. 3 



Hab. Iniue I. (or Savage Isld.), W. W. Perry, Esq. 



An exceedingly minute, but extremely beautiful little 

 species, and quite unlike any hitherto described, although 

 it approaches some forms hitherto included in Peristernia^ 

 which we are inclined to refer to Engina (Gray) it yet 

 possesses characteristics which would point at the suitability 

 of its retention in this genus. Both the specimens known,, 

 are on a tablet in the National Collection, labelled as above,, 

 and both are alike in the exquisite pink suffusion which 

 renders it, though the smallest, quite one of the gems of a 

 very beautiful genus. 



(XIV). Total Number of Species.— \w the last Cata- 

 logue of the late F. Paetel (Berlin, 1887), the whole 

 of the three genera are united under the title Latirus 

 (Montfort) and 144 species, besides varieties and synonyms, 

 are mentioned. Of these we expunge 46, either as 

 reduplications, mistakes, synonyms, or as belonging to 



