510 Ml. iM. Connolly on 



M-itli very faint, close, regular, straight, almost vertical strife, 

 Mhich are strongest on the Gth and 7th whorls ; sutnre 

 moderately oblique, crenulate, ucU defined. Aperture sub- 

 ovate, peristome simple, outer lip curved outward, almost 

 straight and vertical in profile ; columella very slightly 

 concave, margin thickened sufficiently to form a minute 

 rimation ; callus and dentition none. 



Long. 10-7, lat. 2*6 ; apert., alt. 2-3, lat. 0-9 j last whorl 

 4*0 mm. 



Hab. Kenya, between the Laikipia Plateau and Eusso 

 Nyiro {Percival). 



Streptostele crassiplicata, sp. n. (PI. XIV. fig. 30.) 



Shell rather small, turriform, subrimate, thin, rather 

 smooth, glossy, transparent, pale olivaceous. Spire pro- 

 duced, sides nearly regular, apex narrowly rounded. 

 Whorls 8, moderately convex, slowly and regularly increasing, 

 the first 2 practically smooth, remainder sculptured with 

 extremely faint, close, straight, vertical strite, best seen in 

 and just below the suture, which is nearly horizontal, crenu- 

 late, and well defined. Aj)erture irregular, peristome simple, 

 outer lip curved outwards, straight and perpendicular in 

 profile ; columella straight, erect, margin extremely narrowly 

 reflexed, forming a minute rimation; callus and dentition 

 none. 



Long. 6-8, lat. 2-2 ; apert., alt. 17, lat. PO ; last whorl 

 3-0 mm. 



Huh. Kenya, Jorabene Hills, 4000 ft. (Percival). 



Streptostele columna, sp. n. (PL XIY. fig. 29.) 



Shell of fair size, torpediniform, subrimate, bleached in 

 the type, but normally thin, silky, nearly transparent, pale 

 olivaceous. Spire produced, sides tapering extremely 

 gradually from the base to the 5th whorl, and thence more 

 rapidly to the narrowly rounded apex. Whorls 10, flattened, 

 extremely gradually increasing, first 3 practically smooth, 

 remainder sculptured with faint, very fine and close, straight, 

 very slightly oblique, transverse striae ; suture oblique, 

 simple, shallow. Aperture subovate, peristome thin, simple; 

 outer lip moderately curved outward, almost straight in 

 profile, receding a little to the base ; columella slightly con- 

 cave, margin narrowly reflexed, forming a minute rima; 

 callus well marked ; dentition none. 



Long. 10 8, lat. 2-5 ; apert., alt. 2-0, lat. 1-2 ; last whorl 

 3-8 mm. 



