African X(ui-})in)ine MoUttifra. •'•11 



Jl(il>. Kknya, Umiiniti, Laikip'Ji Plateau, fiOOO ft. (Kemp). 



Hatlier widely (liHused in tlio Laiki|)ia l)istri(;t, and 

 showing considerable variation between extremes of form, 

 the line, close sculpture, however, rcniaiiiin<^ uncbangcd. 



Subgenus Kaffuava, Bourguignat. 



S/rej)/ostele (Roffraija) c/ura, sp. n. (PI. XIV. fig. 6.) 



Shell small, elongate, imperforate, thin, smooth, glossy, 

 transparent, lacteous - vitreous. Spire produced, sides 

 regular, apex bluntly rounded. AVliorls 7, rather flat, 

 gradually and regularly increasing, the first 2 smootli, 

 remainder sculptured with close, regular, nearly straight, 

 vertical strije, very faint on the 3rd and 4th and only a little 

 stronger on the later whorls, but strongest just below the 

 sutui'e, which is crenulate, margined below, and rather 

 shallow. Aperture shortly o^ate, very broadly rounded at 

 base; peristome white and shining, thickened, but scarcely 

 refiexed : outer lip well curved outward, liardly advancing 

 in profile, but receding sharply to the base for a little more 

 than half its length ; columella concave, of the same thick- 

 ness as the rest of the peristome ; callus clear, but not thick; 

 dentition none. 



Long. 57, lat. 17 ; apert., alt. 1'4, hit. 0*8; last whorl 

 2G mm. 



Hub. CA.MiiKUN, Bitze (Bales). 



Sti-eptostele (Ruffrmja) curvuia^ sp. n. 

 (PI. XIV. fig. 5.) 



Shell small, elongate, rimate, thin, silky, nearly trans- 

 l)arcnt, lacteous. Spire |)r()duced, slightly convex on the 

 left and concave on the rijiht side ; apex bluntly rounded. 

 AVhorls 7, flattish, slightly gradate, regularly and very 

 gradually increasing, the first 2 smooth, remainder sculp- 

 tured with strong, close, regular, nearly straight, vertical 

 costa', which become obsolete on the paries ; suture hardly 

 crenulate, impnssed. Aperture cjuadratc-ovate, broadly 

 rounded at base; peristome mIuIc, shining, minutely 

 reflexcd ; outer lip slightly sinuous, curved outwards and 

 backwards, in profile, to the base ; columella straight, short, 

 slightly inclined inwards, margin broadly triangularly 

 reflcNcd over the rima ; callus ahnost imj)erceptil)le ; 

 dentition, a most minute tubercle in the angle of the paries 

 and outer lip. 



