- 58 - 



with fine, transverse striae and coarSe growth lines, rather finely malleated; 

 suture impressed; umbilicus moderately narrow, deep; columella curved, 

 peristome continuous, the outer edge membranaceous; aperture broadl)', 

 iaversely auriform. 



Alt. 9, diam. maj. 6, diam. min. 4.75 mm. 



Aperture : ait. 4, diam. 2 mm. 



Hab. — Between Riunruti and Mount Kenia, British East 

 Africa (Robin Kemp). 



Malania maraensis sp. n. — PI. VI, fig. 5. 



Shell subulateh' fusiform^ moderatelj'- solid, pale 5^ellowish-bro\vn,painted, 

 especially on the upper remaining whorls, with transverse purplish bands 

 and flame markings; remaining whorls 5, somewhat convex, sculptured 

 throughout with rather closel}' set, spiral lirae, crossed by coarse, transverse 

 striae, thus presenting an almost cancellate appearance, the first two remain- 

 ing whorls also bear transverse riblets, thèse, however, become obsolète on 

 the third and disappear âltogether below; suture impressed, rather broadly 

 margined below; columella descending in a curve; labrum acute, very 

 slightly dilated below, somewhat projecting below in front, receding above 

 and at the base; aperture inverselj' auriform; operculum small, horn}', ver}^ 

 slightl}^ concave, laminiferous, dark reddish-brown, with excentric nucleus. 



Alt. 24.5, diam. maj. 9, diam. min. j."/!;^ mm. 



Aperture : ait. 8.5, diam. ^ mm. 



Hab. — The Eusso Mara River^ a tributary of the Eusso Nyiro, 

 British East Africa, at an altitude of 3^500 feet, found adhering to 

 the lower surface of stones (Robin Kemp). 



AU the spécimens taken by Mr Kemp, unless very young, are 

 decoUated and considerably eroded above, thev are also thicklv 

 encrusted with a blackish deposit, extremelv difFicult to entirely 

 remove. 



Vivipara alhiensis sp. n. — PI. IV, fig. 4. 



Shell perforate, thin, semi transparent, turbinately ovate, pink, covered 

 with a thin, greenish-olive periostracum, showing traces of having been 

 encircled with fine, shortly hispid, spiral striae; whorls 4, somewhat 

 convex, the embryonic whorl somewhat loosety coiled, sharply ridged 

 above so as to form au inner, semicircular dépression, the antipenultimate 



