— 54 — 

 Homorus rexsp. n. — PI. IV, fig. 8. 



Shell alliecl to H. egregius, Preston (') aJso from Mount Kenia but 

 differing in its larger size, it having two whorls more than that species, the 

 whorls are also rather more conves and the last is proportionately much 

 shortened;- the columella is excavated below aud very much more curved 

 and the aperture is much shorter for the size of the shell, it being almost 

 ovate in shape. 



Alt. 59, diam. maj. 13, diam. min. 12 mm. 



Aperture; ait. 12, diam. 6.75 mm. 



Hab. — Mt. Kenia, British East Africa (Robin Kemp). 



Enonyma achilles sp. n. — PI. IV, fig. 7. 



Shell subrimate, bluntly subulate, polished, shining pale straw-colour; 

 ■whorls II, flattish, the first small, the second rather large in proportion, the 

 remainder regularly increasing, smooth, but for oblique, ti'ansverse growth 

 ridges which are more noticeable in the subsutural région; suture impressed, 

 samewhat puckered below by the terminations of the transverse growth 

 ridges; umbilicus reduced to a mère chink, almost covered by the narrow 

 reflexion of the columella; columella very obliquely descending above, 

 rather strongly curved below, narrowly outwardh' reflexed and diffused 

 into a thin, well defined, pariétal callus the inwardly curved margin of 

 which reaches to the extrême upper lirait of the labrum; labrum somewhat 

 overhanging the aperture in the upper région, then projecting in front and 

 rapidly recedmghe]ow, aperture ovate; interior of shell pale livid-gray. 



Alt. 51, diam. maj. 12.25 mm. 



Aperture : ait. 11, diam. 6.5 mm. 



Hab. — Urguess, British East x\frica (A. Blayney Percival). 



Auricula gaziense sp. n. — PI. V, fig 13. 



Shell ovately fusiform, moderately solid, dark straw-colour; remaining. 

 whorls 6, finety, decussatel}- sculptured on the upper portion onlj; suture 

 impressed, irregularh" crenellate, broadly margined below; columella twisted 

 below, bearing a single, revolving plait above, a thin, somewhat sinuous, 

 pariétal callus joining it with the lip above ; labrum acute, contracted above, 



(,') Annals and Magazine of Natural Histor}-, vol. VII, 191 1, p. 472, pi. Xll, fig. 26. 



