114 ZONITID2K. 



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



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

 Kopamedza Peak (8376'), Naga Hills. 



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



a'. Depressed or conoidly depressed. 



b". Longitudinally striated. 



175. Macrochlamys ? sata, Godwin- Austen, Mol. Ind. 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 4^, 

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

 ture nearly vertical, roundly lunate ; peristome thin, columellar 

 margin oblique. 



Diam. 2, height scarcely 1 mm. 



Hob. Shenghor Peak (6706') and Toruputu Peak (7322'), Dana 

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

 each locality. 



176. Macrochlamys pacata, Godwin-Austen, 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 j, 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. 2|, height 1| mm. 



Hab. Lhota Naga Hills. 



The type, apparently the only specimen known, is not fully grown. 



177. Macrochlamys rusticula, Godwin-Austen, Mol. lnd.~ i, 1883. 



p. 87, pi. 17, fig. 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. 



Hab. 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. 



