188 MR. M. B. rKESTON ON XEW 



rather deep ; columella very oblitj^ue ; labrum simple ; aperture 

 broadly sublunate. 



Alt. -75. diam. maj. 2, diam. min. 1-75 mm. 



Hah. Between the Igembi Hills and Nyeri, British East Africa 

 (Rohin Kemp). 



Leucochiloides chanlerensis, sp. n. (PI. XXXI. fig. 16.) 



Shell small, rimate, cylindrically fusiform, slightly shining, 

 reddish brown ; whorls 5, regularly increasing, the last ascending 

 in front, marked with oblique, transverse growth-lines ; suture 

 well impressed ; umbilicus very narrow ; columella curved ; labrum 

 rather narrowly expanded, whitish, not reflexed ; aperture sub- 

 circular, bearing a single, nodulous denticle just below the point 

 of insertion of the labrum with the 2:)arietal wall. 



Alt. nearly 4, diam. maj. 1*75 mm. 



Aperture : alt. "75, diam. nearly "75 mm. 



Hah. Chanler Falls, Eusso Nyiro, British East Africa {Rohin 

 Kemp). , 



Leucochiloides iredalei, sp. n. (PI. XXXI. fig. 18.) 



Shell differing from L. chanlerensis in its blunter form, more 

 swollen whorls, deeper suture, more open umbilicus, straighter 

 columella, and narrower and more ei'ect labrum ; moreover, it lacks 

 the nodulous denticle which in the present species is replaced by 

 an erect white denticle situate low doion on the parietal vxill well 

 within the aperture, and a smaller erect squarish denticle on the 

 columella also situace well within the opening. 



Alt. 3"5, diam. maj. 1'75 mm. 



Aperture: alt. '75, diam. nearly *75 mm. 



Hah. Eusso Nyiro, British East Africa {Rohin Kemi-)). 



i 



Leucochiloides soror, sp. n. (PI. XXXI. fig. 17.) 



"Very closely allied to L. chanlerensis and possibly only a variety 

 of that species ; it differs, however, in its larger size, more open 

 imibilicus, though having a proportionately narrower base, and in 

 having an additional whorl, the aperture is also more ovate than 

 is the case in that species. 



Alt. 6, diam. maj. 2*25 mm. 



Aperture : alt. 1'5, diam. 1*25 mm. 



Hah. Chanler Falls, Eusso Nyiro, British East Africa (Rohin 

 Kemp). 



Leucochiloides gaziensis, sp. n. (PI. XXXI. fig. 19.) 



Shell small, ovately fusiform, pale reddish brown ; whorls 5, 

 convex, marked with fine, oblique, transverse strife ; suture deeply 

 impressed ; umbilical area broadly depressed : labrum with 

 converging upper margin, white, rather broadly expanded ; 

 aperture ovate. 



Alt. nearly 4*5, diam. maj. 2-25, diam. min. 2 mm. 



Apei-ture : alt. 1, diam. -5 mm. 



Hah. Gazi, British East Africa {Rohin Kemp), 



