350 Mr. M. Connolly on 



columella sliglitly concave, margin whitish, narrowl}^ reflexed, 

 half covering the narrow umbilicus ; callus none. 



Long. 12*7^ lat. 6"1 ; apert., alt. 5*0, lat. 2*9 ; la^t whorl 

 7'7 mm. 



Hab. Kenya, forests N. of Mt. Kenya (Per<?i?;«/). 



A beautiful species, remarl^able for its involute apex and 

 micro-cancellate sculpture. 



Pseudoglessula [Pseudocerastus) solitudinum, sp. n. 

 (PL I. fig. 18.) 



Shell of moderate size, conoid, perforate, thin, silky, semi- 

 bleached in the type, but normally semitransparent and 

 brownish corneous. Spire moderately produced, sides regular, 

 apical angle about 43°, apex rather blunt. Whorls 6, mode- 

 rately convex, regularly and rather rapidly increasing, with 

 only the faintest trace of basal margination, sculptured to 

 the apex with close, regular, well-defined, slightly curved, and 

 oblique transverse striae, almost equidistant except on the 

 2nd whorl, where they are very slightly further apart than 

 on the remainder; suture simple, well defined. Aperture 

 subovate, slightly oblique; peristome simple, acute; outer 

 lip nearly straight in profile, receding but little to the base ; 

 columella concave, margin evenly reflexed, umbilicus narrow 

 but deep. 



Long. 11*5, lat. 5'8 ; apert., alt. 4*7, lat. 2*7; last whorl 

 7*2 mm. 



Hab. Kenya, Taru Desert (Percival), 



An ordinary little species, apparently mature, bearing 

 some resemblance to several of the smaller forms of the 

 Z>oz?;z«i group, but not conspecific with any of them. It has 

 rather finer striae and longer whorls than kidetensis, Smith — 

 perhaps its nearest relation. 



Pseudoglessula [Pseudocerastus) ingloria, sp. n. 

 (PI. L fig. 19.) 



Shell of moderate size, turriform, perforate, thin, silky, 

 semitransparent, normally brownish corneous. Spire pro- 

 duced, sides almost regular, apical angle about 30°, apex 

 bluntly submamillate. Whorls 7, not very convex, regularly 

 increasing, the last showing only a faint trace of basal 

 margination, all but the extreme apex covered with close, 

 regular, well-defined, nearly straight, slightly oblique, trans- 

 verse striae, very slightly more distant on the first 2 than on 

 the later whorls and fainter on the base of the last ; suture 

 simple, well defined. Aperture sub-oval, peristome simple. 



