MAcnociir.A^MVR. 143 



iKcy to Spec'tes of i^[acroc!llalnys. 



A. Species from llinialayas icest of Aepal. 



a. 8ubglobose or subglobosely depressed, not labiate, vesicula. 



(jlaucn. 

 ntida. 

 kuluensis. 

 ]{. Species from Easter7i llimaUiyas (Sik/tini and 

 Western Bhutan). 



a. Labiate tugurium. 



maimvarinyi. 

 dalinyensis. 

 opipara. 

 damsanyensis. 



b. Not labiate. 



«'. Subturbinate hodgsoni. 



h' . Depressed. 



«-. Spirally (longitudii)ally) sculptureil sequax. 



sequius. 



snperf.ua. 



rakaensis. 



b". Smootli lubrica. 



a^. Conoidly depressed, rugose transverse 



(but no longitudinal) sculpture patane. 



perfrayilis. 



c. Witli free caecum to male organ richilaeytsis. 



sathilaensis. 

 zenioensis. 



d. Shells not exceeding 6 mm. 



b^. Longitudinally striated or sculptured . . rorida. 



¥. Smootli darjilifiyerisis. 



C. Species froyn the Gnnyetic Valley and Delta, the 



iV. W. Provinces, and Bengal with Rajmuhal Hills. 



a. Depressed or conoidl}' depressed mdica. 



a'. Longitudinal flexuous impressed sculpture . . petrosa (type). 

 v. Very tine microscopic striae hardicickii. 



b. Smooth subjecta. 



lecythis. 

 perplana. 



D. Species from the Assain Hills, Xorth and South of 



Valley. 



a. Labiate atricolor. 



castaneo-labiata. 



hepatizvn. 



lata. 



b. Not labiate decussata. 



Ihotaensis. 



ruhellucincfti. 



bilineata. 



uda. 



cacharica. 



salmo7iea. 



yodwini. 



terminus. 



