204 MR. H. B. PRESTOX OX AGXATHOUS 



lines of growth, somewhat shining, creamy white; whorls 7|, the 

 first five regulai'ly, the remainder rapidly, increasing, the last 

 contracted below ; suture impi-esssd ; umbilicus moderately 

 narrow ; columella obliquely descending, white, reflexed, diffused 

 above into a lightish callus which join:S the upper margin of the 

 labrum ; labrum white, sinuous, expanded and reflexed, especially 

 in the basal region ; aperture irregularly subquadrate, armed 

 with an erect, somewhat bent, oblique, parietal lamella slightly 

 broadening below, a group of three denticles on the inner margin 

 of the labrum, of which the middle one is the lai-gest and the 

 lowest the smallest, a small, triangular, basal denticle and a strong 

 curved lamelliform projection about halfway up the columella. 

 Alt. 18-25, diam. maj. 9 mm. 

 Aperture : alt. 6, diam. 4*25 mm. 



Hah. Between the Jombene Hills and Nyeri, British East 

 Africa (type) {Robin Kemj)). 



A very handsome species which it would be difficult to con- 

 found with any other as yet recorded from the region in which it 

 occurs; specimens Avere also sparingly found by Mr. Kemp on 

 the Jombene Hills at an altitude of 61)00 feet and at Mweru. 



' Ennea ingeziensis, sp. n. (PI. XXX.1II. figs. 9, 9 a.) 

 Shell small, ovately cylindrical, cream-coloured, somewhat 

 shining ; whorls 7, the first five regularly increasing, the last 

 two longer but narrower than the fifth, the last deeply strangu- 

 late just behind the labrum, marked with obsolete, oblique, 

 transverse riblets ; suture well impressed, st7-onghj crenellated by 

 the terminations of the obsolete, transverse riblets ; umbilical 

 area presenting a rather deep depression ; columella descending 

 in a somewhat angular curve and developed into a broad, shelf- 

 like projection well within ; labrum white, expanded and 

 nai-rowly reflexed, the margins joined by a well-defined, parietal 

 callus ; aperture subrectangular, armed with a coarse, erect, 

 somewhat curved, parietal lamella, a large, squarish, tooth-like 

 projection on the labrum corresponding to, and formed by, the 

 deep strangulation on the last wdiorl, a small, triangular denticle 

 at the base of the columella, above which and very interiorly 

 situate is a broad, shelf-like projection. 



Alt. 4"5, diam. maj. 2 mm. 



Aperture : alt. 1-25, diam. 1 mm. 



Hah. Ingezi, Mfumburu Mountains, extreme S.W. Uganda ; 

 also from Kigezi in the same region at an altitude of 6000 feet 

 {Rohin Kemp). 



Var. PUSILLA, var. n. 



Shell much smaller than the typical form, with one v/horl less, 

 which gives to it a more cylindrical appearance; the columella 

 also descends more vertically than is the case with the type. 



Alt. 3'25 (nearly), diam. maj. 1-5 (nearly) mm. 



Hah. Between Mbarara and Kigezi, extreme S.W. Uganda 

 {Robin Kemjj). 



