150 Mr. E. A. Smith on Land- and 



32. Mutela Bourguignati^ Ancey. 

 Hub. Victoria Nyanza. 



II. Descriptions of New Species. 



Hyalinia Lasti. (PI. V. figs. 1, la.) 



Testa minute perforata, orbiculata, subdepressa, nitens, fusco-cornea, 

 tenuis ; spira leviter elovata et couvexa, ad apicem obtusa ; 

 anfract. G, lente accrescentes, convexiusculi, leviter striatuli, striis 

 prope suturam anguste marginatum subpliciformibus, ultimus ad 

 peripheriam rotuudatus, in exemplis juvenilibus obtuse angula- 

 tus, infra convexus, sed in medio, umbilicum versus, concave 

 impressus, radiatim striatus, striiscjue conceutricis tenuissimis 

 fere obsoletis sculptus ; apertura oblique semilunata, iutus pallide 

 vinosa ; perist. tenue, margine columellari leviter incrassato et 

 breviter reflexo. 



Diam. maj. 15| millim., min. 13 ; alt. 9. 



Hah. On the plains within a 5U-miles radius of Mamboia 

 {Last) . 



Var. pellucida. Testa subpellucida vel flavescenti-cornea. 



Hab. Mamboia, at an elevation of from 4000 to 5000 feet 

 (Last) . 



As is frequently the case in this difficult group of land- 

 shells, there is no special feature which at once distinguishes 

 this species. The perforation is very small and the super- 

 ficial gloss on both the upper and lower surfaces is very 

 brilliant. Three of four examples from the high altitude are 

 quite pale in comparison with the typical form from the 

 plains. 



Hyalinia Eminiana. (PI. V. fig, 2.) 



Testa angustissime perforata, subgloboso-deprcssa, tenuis, nitida, 

 semipellucida, flavo-cornea ; aufract. 5|, subccleriter accrcsccntes, 

 convexiusculi, infra suturam anguste marginati, incrcmenti lineis 

 striatuli, ultimus ad peripheriam rotuudatus, infra convexiuseulus, 

 in medio concave impressus et perforatus : apertura mcdiocriter 

 magna, obliqua, semilunata ; perist. teuuissimura, margine colu- 

 mellari breviter reflexo, umbilicum semiobtegente. 



Diam. maj. 11 millim., min. 10 ; alt. 8. 



Hab. Mamboia, 4000 to 5000 feet altitude {La^t). 



A rather convex species, with a somewhat elevated conical 

 spire with slightly convex outlines. The basal perforation is 

 very small. 



