112 ZOXITIDiE. 



169. Macrochlamys roberti, Godicin- Austen, Mol. Lul. i, 1883, p. 87, 



pi. 17, tig. 17. 



Shell minutely perforate, depressedly turbinate, thin, smooth, 

 scarcely poUshed above, more so belo\\', minutely striated trans- 

 versely, without spiral (longitudinal) sculpture, bro\\-nish horny ; 

 spire conoidal, apex obtuse, suture impressed ; w horls 6, convex, 

 rather closely wound, the last roundsd at the periphery, tumid 

 below ; aperture subvertical, lunate ; margins converging ; peri- 

 stome tbin, columellar margin oblique, curved, almost vertical 

 above, rather broadly triangularly reflected. 



Major diam. 4, min. 3-75, height 2-5 mm. 



Hah. Angauluo Peak, G777' ; Burrail Eange, Naga HiDs 

 (^Godiuin-A^tsten). 



This is distinguished from M. JcoTiaensts by its ]o\\'er spire and 

 by beiug perforate. 



170. Macrochlamys tanirensis, Godioin-Austen, Mol. Iml \, 1883, 



p. 87, pi. 17, fig. 9. 



Shell obtectly perforate, subgiobosely depressed, thin, polished, 

 smooth, light yellowish brown ; spire low", convexly conoid, apex 

 obtuse, suture impressed ; whorls 4|, convex, increasing slouly, 

 the last rounded at the periphery, swollen below ; aperture nearly 

 vertical, lunate ; peristome thin, columellar margin oblique, rather 

 broadly reflected. 



Diam. 2-8, height I'To mm. 



Hah. Tanir Peak, Dafla Hills, 4400' {Godwin-Austen). 



b'. LongltudinaUrj striated. 



171. Macrochlamys longicaiida, Gochvin-Ausfen, Mol. Ind. i, 1883, 



pp. 84, 8.-3, pi. 17, tigs. 1, -2, 2 a, 4 (shells), pi. 20, figs, la-e 

 (animal and radula), pi. 21, fig. Ki (sculpture). 



Shell subobtectly perforate, depressedly turbinate, pale horny 

 brown to yellowish tawny, not polished above, and under the 

 microscope marked with two series of very line oblique stria) at 

 right angles to each other (these appear to be wanting in some 

 varieties), smooth and polished below; spire low, conical, apex 

 obtuse, suture impressed ; whorls 5^, regularly increasing, convex 

 above, the last angulate at the periphery, tumid beneath ; aperture 

 slif'htly oblique, angulately lunate ; peristome thin, columellar 

 margin much curved, expanded throughout, vertical and sharply 

 reflected at perforation. 



Major diam. 6, min. 5-6, height 4 mm. ; smaller specimens 

 measure 4 -to 5 mm. in diameter. 



Hah. Khasi, Jaintia, and North Cachar Hills; Cherra Punji, 

 Maotherichan Peak, Jawai, Marangsip Peak, &c. 



Caudal extremity of foot abruptly truncated, lobe above large, 

 mucous pore greatly developed. Colour pale, with a dark grey line 



