144 ZO'ITID^. 



«'. Shell globose. 



b' . Strousrly or microscopically striate longitu- 

 dinally heata. 



miinipurensis. 

 frayosus. 

 a' . Shell depressedly conoid. 



b" . Smooth iiialiadeoensis. 



hniydanensis. 

 razamiensis. 

 lahiqicrensis. 

 huoheri. 



c. Upper surface transversely plicate or ribbed .... plicifera. 



shisha. 



d. Shells not exceeding about 6 mm. fa quarter 



inch) in diameter. (Generic affinities often 

 doubtful.) 

 a. Subglobose or subturbinate. 



b. Smooth nemjloensis. 



]c»li<tensis. 



Viiberti. 



tanirensis. 

 U. Longitudinally striated! hmgicauda. 



dorani. 



ori(jinarin. 



unihraticola. 

 a' . Depressed or conoidly depressed. 



b" . Longitudinally striated sata. 



jxicata. 



rusticula. 

 E. Species from Bu7'ma, Arahan, and Tenasserim. 



a. Peristome labiate consepta. 



a'. Smooth peta.'ins. 



asjjides. 



b. Peristome not labiate c/uius. 



a". Longitudinally (spirally) striated ku)na/ie7isis. 



causia. 

 b'. Subglobosely depressed. 



a'". Smooth mhmiensis. 



d>(//(tsfi. 

 b". Depressed or conoidly depressed. 



b'". Smooth subpetasus. 



iio.via. 



bK Longitudinally striated iiehulosa. 



')i()th(t. 

 hypoleuca. 

 sprefa. 

 patens, 

 v. Shells not exceeding 6 mm. 



a! . Turbinate puwji. 



b'. Depressed or conoidly depressed. 



a". Smooth niolecula. 



curvUabris. 



b" . Longitudinally striated pciyaida. 



pau.riUula. 



