British and German East Africa^ cCr. 527 



Ennea quadrilateralis, sp. n. (Fi<^. 2.) 



Sliell rather laifre, rectangularly ovate, perforate, somi- 

 ^vllat tliin, pale yellowish ; whorls (J, sculptured with mode- 

 rately fine, very closely set, arcuate, transverse striae; sutures 

 impressed, crenellated below by the termination oi" the trans- 

 verse stria?; umbilicus narrow, partly concealed by the reflec- 

 tion ot the columella ; columella white, descending in a 

 gentle curve and extending upwards and outwards into a thin 

 callus, which reaches the lip above; labrum white, reflexed 

 and terminating in a sinus, which forms with the parietal 

 trail a triangular notch ; aperture almost square, edentulate ; 

 interior of shell white. 



Alt. 20"5, diam. mnj. 17'5 mm. 



Aperture: alt. 10, diam. 9*5 mm. 



Uub. Shimbi Hills, British East Africa. 



Ennea gioendolina^, sp. n. (Fig. 3.) 



Shell scarcely rimate, cylindrical, yellowish white, smooth, 

 polishfd ; whorls 6^, moderately convex ; sutures impressed, 

 narrowly margined above ; columella extending above into 

 a thin, white, well-defined callus ; labrum white, sinuous 

 above, rather broadly expanded, thickened, and reflexed ; 

 aperture irregularly subr-^ctangular, bearing a slightly curved 

 or twisted parietal lamella on the right, a large, broadly bifid 

 lamella on the outer lip, and a small denticle inside the basal 

 lip, while the columella is intenuilly developed into a broad 

 shelf-like projection, ending in a thick, oblique, C-shaped 

 lamella at its base. 



Alt. 5, diam. maj. 15 mm. 



Aperture: alt. 1, diam. '5 mm. 



JIab. Shimbi Hills, British East Africa. 



(Separable from E. suhjlavescens, Smith, from Mamboia, 

 German East Africa, by its much narrower and smaller form ; 

 it lacks the small upper lamella on the outer lip, the upper 

 basal denticle, and has only the oblique C-shaped lamella on 

 the columella, instead of the three columellar laraellse of that 

 species. 



Ennea marionw, sp. n. (Fig. 4.) 



Shell pupiform, transparent, vitreous, white, smooth, 

 polished; whorls 6, the last finely puckered behind the 

 labrum ; sutures impressed, narrowly margined above ; colu- 

 mella broadened above, narrowing obliquely below ; labrum 

 sinuous, opaque, white, rather broadly expanded, and re- 

 flexed ; aperture irregularly rectangular, bearing a rather 



