— 325 — 



rather long, sculptured with rather fine, distant, arcuate, transvevse costulae; 

 suture impressed; columella strongl}^ twisted, diffused above into a modera- 

 tely tliin, well detiued, cream coloured callus wlaich reaclies tlie upper 

 margin of the labrum; labrum acute, piojecting in front, sliglitly receding 

 belovv, rapidly recediug above to form a broad, triangular sinus; aperture 

 elongately inversely auriform. 



Alt. 7.75, diam. maj. 4 mm. 



Aperture : ait. 4, diam. 2 mm. 



Hab. — Between Entebbe and Mbarara, S. W. Uganda (Robin 

 Kemp). 



Curvella mbararaensis, sp. n. — PI. XVII, fig. 6. 



Shell small, scarcety riniate, fusiform witii obtuse apex, cream coloured; 

 whorls 4 V2, convex, the last long, sculptured throughout witli transverse, 

 arcuate riblets; columella vertically descending above, soraewhat twisted 

 and much excavated below, rather outwardl)^ reflexed; labrum simple, 

 acute; aperture rather curvedly and elongatelj^' inversely auriform 



Alt. 6, diam. maj. 3 mm. 



Aperture : ait. 2.25, diam. 1.25 mm. 



Hab. — Between Entebbe and Mbarara, S. W. Uganda (Robin 



Kemp). 



Curvella solidula, sp. n. — PI. XVII, fig. 12. 



Shell perforate, turbinately fusiform, solid, cream coloured, very slightly 

 shining; whorls 6, rapidly increasing, the last inflated, marked with very 

 coarse, closely set, transverse, arcuate riblets which become straighter and 

 almost obsolète on the lower half of the last whorl ; suture impressed, some- 

 what crenellated by the terminations of the transverse riblets; umbilicus 

 rather wide and deep ; columella very slightlj'- obhque, thickened, refiexed, 

 diffused above into a barely perceptible callus which joins the upper margin 

 of the labrum; labrum acute, reflexed, erect above, receding towards the 

 upper margin; aperture inversely auriform. 



Alt. 10.25, diam. maj. 6, diam. min. 5 mm. 



Aperture : ait. 5.75, diam. 2.25 mm. 



Hab. — Between Entebbe and Mbarara, S. W. Uganda (Robin 



Kemp) . 



