g6 SMITH ; ON some land shells from BRITISH EAST AFRICA. 



culi, superiores duo laeves; ultimus magnus, inflatus, antice flavescens, 

 oblique descendens, ad medium obsolete carinatus ; apertura inverse 

 auriformis, intus rufescens, longit. totius h paulo superans ; peristoma 

 incrassatum, reflexum, pallidum, margine dextro curvato, columellari 

 rectiusculo, supra leviter expanso. 



Longit. 2gh millim., diam. i8; apertura cum perist. 14 longa, 11 

 lata. 



Fig. 5. — Bnlimiiiiis bainbHscti, Martens, var. 



Dr. E. von Martens has kindly compared a specimen with his B. 

 hambuseti, and he is of opinion, notwithstanding slight differences, 

 that they belong to the same species. He noted that the present 

 variety was a little larger, the last whorl rather more inflated, and the 

 peristome paler, also that the faint angulation or ridge around the 

 middle of the body-whorl was more distinct in the Uganda shell. 



Opeas crenulata, n. sp. Fig. 6. 



Testa gracilis, subulata, pellucida, nitida, tenuis ; anfractus 12 lente 

 accrescentes, duo apicales laeves, convexi, coteri convexiusculi, oblique 

 leviter striatuli, ad suturam minute crenulati, sutura leviter oblique 

 sejuncti, ultimus brevis ; apertura inverse auriformis, parva; peristoma 

 tenue, margine columellari expanso et reflexo. 



Longit. 12 millim, diam. 3; apertura 2^ longa. 



Fig 6. — Opeas cirmil<ila, n. sji. 



\\'ell characterised by the numerous short whorls and the minute 

 plication at the suture. 'J'he form is somewhat \ariable, some speci- 

 mens being more slender than others. 



