new Si/ecies of Shells. 155 



wliiuli 13 a young sliell), by its broader form aiul inorij 

 rajjitlly increasiuLj wliorls. In Beckeri tlic first two whorls 

 are sniootli, whereas in Purcelli they are distinctly crenuhit.'d 

 at the suture. 



This comjiarison was made with llie type of Purcelli^ now 

 in the British ]\Iuseum, and a yf^nnrj specimen of S. Beckeri. 

 In the description of S. Purcelli the species is characterized 

 as having ho sculpture, hut that is not correct; the figure also 

 gives one the idea of a broader form than that of the actual 

 type. 



Lejitofotmi )iiaseusej sp. n, (1*1. X. fig. 6.) 



Shell glolosely conic, narrowly unibilicated, thin, sub- 

 transparent, very light brownish ground with darker-coloured 

 raised spiral striae, about G on middle whorls ; between these 

 are close-set microscopic spirals, a patch of darker brown at 

 umbilical area ; whorls 5, moderately convex, last subcarinate 

 in front; a|)ertine circular, rather dark within; peristome 

 expanded, whitish both front and back, margins approxi- 

 niating and joined by a thin callus ; operculum corneous, 

 thin, a whorls. 



Maj. diam. 14, alt. 13.\ mm. 



J Jab. Kias Island, N.W. Sumatra. 



Similar to L. pelluciJutitj Grat., but can be readily sepa- 

 rated by its slightly broader peristome and dark-coloured 

 umbilical area. 



The species varies somewhat in coloration, some specimens 

 having patches of a smoke-colour and others being banded. 



Cyclophorus {Theohaldius) Dautzenbergi. sp. n. 



(PI. X. fig. 8.) 



Shell de[)ressed, spire plane, moderately solid, widely 

 unibilicated, dark brown, with rather distant oblique streaks 

 of lighter colour ; whorls 4-^, convex, closely obliquely 

 striated, uj)per part of last whorl with five or six more or 

 less distinct spiral striae, which stop short on the penultimate 

 whorl, third of last whorl slightly and gradually descending; 

 aperture circular, bluish "white witliin ; peristome with 

 yellowish-white edge, surrounded by a dark-coloured flange, 

 giving the peristome a duplex appearance; operculum 

 corneous, fairly solid, about 12 whorls. 



Maj. diam. 2.5, alt. 10 mm. 



Ilab. Nias Island, N.W. Sumatra. 



Jjcariiig a likeness to the Ceylon species C. Lai/ardij Ad., 



