Quarterly Journal of Concliology. 203 



tantibus validis (superne vix conspicuis, basin versus confertiori- 

 bus) insculpta ; spira leviter concava, apice acutiuscula etfusces- 

 cens ; anfract. g planiusculi, paidulum exerti, striis spiralibus 

 j-4 incrcnientique lineis ornati; apertura angusta, intus violaeea; 

 lab rum intus margine albidum, superne vix incisuni; columella 

 basi subplicata. 

 Long. 2^ mill. Diani. max. 14. 



This species is of a turbinate form, with a slightly concave and 

 not very elevated spire ; the angle of body whorl is rather acute and 

 its sides almost rectihnear or slightly concave. It is of a whitish 

 colour faintly tinted with purple, the spire particularly towards the 

 apex is stained with pale brown and the interior of the aperture is 

 light violet; the spire consists of nine very gradually increasing 

 whorls which are a little exserted and sculptured with three or four 

 fine spiral stride which are crossed by very minute arcuate lines ot 

 growth; the last whorl also shows incremental striations and minute 

 transverse ones and is sculptured with transverse sulfations which 

 are rather remote and almost obsolete on the upper third of it, 

 equally distant but strongly marked around its middle portion, and 

 much closer together towards the base, on the oral side of which is 

 a rather distinct columellar fold. The aperture is narrow, scarcely, 

 wider at the base than superiorly; the labium whitish within on its 

 margin which is not prominent in the middle but nearly straight 

 and only faintly incised at its juncture with the whorl. 



There are two specimens of this interesting species in the 

 National Museum which form part of the magnificent Cumingian 

 collection; unfortunately no locality is attached to them. 



This species must not be confounded vvith C. trochulus of 

 Reeve, its nearest relation. It is a little more elongate, narrower 

 at the base, with straight or even concave and not convex outlines 

 as in that species; the spire too is slightly concave, more pointed 

 and brownish at the apex, and the transverse sulcations are well 



