S4 



DESCRIPTIONS OF FOUR SUPPOSED NEW LAND 

 SHELLS FROM BRITISH SOMALILAND. 



By J. R. LE B. TOMLIN, M.A., F.E.S. 



(Read before the Society, March gth, igio). 



The four following species which I describe as new came from a 

 small collection of mollusca made by Mr. W. Feather, of the British 

 Somaliland Fibre and Development Company, and have been placed 

 in my hands by Mr. Fred. Booth. 



They were all collected on Gan Libbah, at an elevation of about 

 5,600 feet above sea-level, in British Somaliland. 



Buliminus (Cerastus) featheri n.sp. 



Shell broadly ovate, somewhat elongate, perforate, pale fawn colour; 

 whorls 8|, first whorl flattened at apex, later whorls closely obliquely 

 striate, the stride on the earlier whorls regular and closely set, less so 

 on the penultimate and on the last whorl irregular or obsolete ; suture 

 rather lightly impressed ; the umbilical area considerably excavated ; 

 perforation deep, narrow ; columella reflexed over the umbilical 

 area ; aperture oblong, slightly angled at the base of the columella ; 

 labrum narrowly reflexed. 



Alt. 29 mm. ; diam. maj. 14 mm. ; diam. min. 10 mm. 



Aperture, alt. 13 mm. ; diam. <S mm. 



Only a few specimens were collected, all of which were dead ; in 

 the specimen figured the upper whorls are more or less bleached. 

 Though there is nothing very remarkable about the appearance of 

 this species, I am unable to find that it has already been described. 



I name this species after Mr. W. Feather, who made this collec- 

 tion in Somaliland. 



Buliminus (Cerastus) boothi n.sp. 



Shell ovate, perforate ; colour pale buff, sparsely and very irregu- 

 larly dotted with darker markings, which are translucent when the 

 shell is held up to the light ; whorls 8|, closely and regularly obliquely 



