new Shells from British East Africa. 460 



Alt. 1"5, diani. iiiaj. 275, diaiu. miii. 2'25 iniii. 

 Aperture : alt. '5, <liain. '5 rain. 



llah. Mount Kenia, at an altitude of 9000-10,000 feet, 

 British East Africa. 



Acanthinula expatriata^ sp. n. (Fig. 17.) 



Shell globosely turbinate, ■uitli elevated spire, thin, covered 

 witli a siiining pile bronze perio^tracum, which is raised on 

 the later whorls into rather distant, regular, very oblique 

 ridges, each ridge bearing a coarse, long, broad- based, mem- 

 branaceous bristle at the periphery j whorls 4, rapidly in- 

 creasing, convex ; suture deeply impressed ; base of shell 

 convex, showing traces of very Hue, spiral sculpture between 

 the ridges of the periostracum ; umbilicus narrow, very deep, 

 partly concealed by the expansion of the outer margin of the 

 columella ; columella descending in an oblique curve and 

 diffused above into a whitish, parietal callus, both it and the 

 labrum wdiite, slightly reflexed and outwardly broadly 

 surrounded by a reflexed extension of the membranaceous 

 ])eriostracum, thus forming a double margin ; aperture sub- 

 circular. 



Alt. nearly 2'5, diam. maj. 2 mm. 



Hah. Mount Kenia, at an altitude of 9000-10,000 feet, 

 British EastAfrica. 



Eachis virginea, sp. u. (Fig. 18.) 



Shell acuminately ovate, thin, the earlier whorls flesh- 

 coloured, the later whorls cream-coloured, occasionally spotted 

 with reddish purple; whorls 5|, rather flat, the last angulate 

 at the periphery, marked with transverse growth lines and 

 very fine, spiral striffi, these latter becoming more marked on 

 the base of the shell ; suture impressed ; columella obliquely 

 outwardly curved below, reflexed and expanded into a thin 

 callus ; peristome simple ; aperture ovate. 



Alt. 14, diam. m^j. 9''5, diam. rain. 7 mm. 



Aperture: alt. 7"5, diam. 4o mm. 



Hub. Mount Kenia, at an altitude of 6000-8000 feet, 

 British East Africa. 



Eachis tui-ricula, sp. n. (Fig. 19.) 



Shell elongately turrite, perforate, thin, corneous, polished, 

 pale yellowish brown ; whorls 7, the last two rather rapidly 

 increasing, marked with fine, oblique lines of growth ; suture 

 impressed ; umbilicus very narrow ; columella vertically 



