114 ZO'ITIDy]'.. 



Mapi- diam. 3-5, min. 3, height 2 mm. 



Hah. Hengdan Peak, North Cachar Hills ; Jatinga Valley and 

 Kopamedza Peak (8376'), Naga Hills. 



The type measured 4-3 mm. in major diameter. 



a'. Depressed o>" conoidly depressed. 



b". Longitudinally striated. 



175. Macrochlamys ? sata, Godwin-Austen, Mol. Lid. i, 1883, p. 91, 



pi. 14, fig. 13. 



Shell imperforate, depressed, thin, polished, very finely longi- 

 tudinally (spirally) striated under the microscope, pale brownish 

 horny; spire very low, apex obtuse, suture impressed ; whorls 44, 

 convex, the last rouiuled at the periphery, convex beneath ; aper- 

 ture nearly vertical, roundly lunate; peristome thin, columellar 

 margin oblique. 



Diam. "J, height scarcelv 1 mm. 



Bah. Shenghor Peak (6700') and Toruputu Peak (7322'), Dafla 

 Hills in Eastern Himalayas, north of Assam ; one specimen from 

 each locality. 



176. Macrochlamys pacata, Godidn-Ausfo), Mol. Ind. i, 1883, p. 90. 



pi. 14, fig. 10, 



Shell obtectly perforate, almost imperforate, depressed, thin, 

 smooth, moderately polished, under the microscope subdistantly 

 longitudinally (spirally) striated above and below ; spire very low, 

 apex obtuse, suture impressed ; whorls 4|, convex, the last 

 rounded at the periphery, somewhat swollen beneath ; aperture 

 subovately lunate, slightly oblique ; peristome thin, columellar 

 margin much curved, vertical and reflected above, almost covering 

 the perforation. 



Major diam. 3, min. 2i, height 1| mm. 



Hah. Lhota Naga Hills. 



The type, apparently the only specimen knoun, is not fully gro\An. 



177. Macrochlamys rusticula, Godwin-Austen, Mol. Ind. i, 1883, 



p. sr, pi. 17, tig. 10. 



Shell obtectly perforate, conoidly depressed, thin, smooth, not 

 polished above, translucent, pale brown ; spire low, conoidal, 

 suture impressed ; whorls 4, convex, the last rather broader, 

 rounded at the periphery, flatly convex beneath ; aperture sub- 

 ovately lunate ; peristome thin, columellar margin oblique. 



Diam. 2-1, height 1 mm. 



Hah. North Khasi Hills. 



The only specimen is probably immature. There is an indistinct 

 appearance resembling sculpture under the microscope, but no 

 striation can be made out. 



