MACROCHLAMYS. 81 



118. Macrochlaxnys nuda, Pfr. (Helix) P. Z. S. 1852, p. 83 ; id. Mart. 



fy Chemn. Syst. Conch.- Cab. ed. 2, Helix, no. 1102, pi. 161, figs. 16, 

 17 5 id. (Helix) Mon. Hel. iii, 1853, p. 48; H. $ T. (Helix) 

 C. I. 1876, pi. 31, figs. 7, 10 ; Nevill, Hand-l. i, 1878, p. 25. 



Shell scarcely perforate, depressedly subglobose, thin, smooth, 

 translucent, pale fulvous horny ; spire conoid, suture impressed : 

 whorls 6, convex, the last broad, rounded at the periphery, inflated 

 beneath ; aperture nearly diagonal, roundly lunate, broader than 

 high ; peristome thin, margins converging, the right margin 

 arcuate above, columellar curved, vertical above and rather broadly 

 reflected. 



Major diam. 11, min. 9|, height 7 mm. 



Hab. Western Himalayas, Kumaun, Mussooree, Simla (Stoliczka, 

 teste Nevill). 



The above description is chiefly taken from PfeifFer, as no adult 

 shell is available. This form only appears to differ from M. ylauca 

 in colour and in the obliquity of the mouth ; if the latter 

 character is due to age, as is probable, the two may be varieties 

 of one species. 



119. Macrochlamys kuluensis, Blf. (Nevill, MS.) P. Z. S. 1904, ii, 



p. 442, pi. 25, fig. 5. 



Shell openly perforate, subumbilicate, depressedly subglobose, 

 thin, translucent, smooth, pale horny ; spire conoidal, suture 

 impressed; whorls 5|, convex, the last much larger, broadly 

 rounded at the periphery and tumid beneath ; aperture oblique, 

 roundly lunate, about as broad as high ; peristome thin, in one 

 plane, columellar margin vertical and triangularly reflected above. 



Major diam. 12, min. 10^, height 7 mm. 



Hab. Kulu. 



This is near M. ylauca aud M. nuda, but distinguished by its 

 much more open perforation and rounder mouth. 



B. Species from Eastern Himalayas (Sikhim and Western Bhutan). 



a. Labiate. 



120. Macrochlamys tugurium, Ss. (Helix) A. M. N. H. (2) x, 1852, 



p. 348; Pfr. (Helix) Mon. Hel. iii, 1853, p. 636; id. t. c. iv, 

 1859, p. 124; H. $ T. (Helix) C. I. 1876, pi. 29, fig. 10; Nev. 

 (Nanina) Hand-l. i, 1878, p. 80 ; Godwin-Austen (Macrochlamys), 

 J. A. S. B. 1882, 2, p. 69, pi. 5, fig. 4 ; id. (Macrochlamys) Mol. 

 Ind. i, 1883, pi. 19, fig. 2 (shell and animal), pi. 20, fig. 3 (details) ; 

 id. t. c. ii, 1907, p. 151, pi. 104, figs. 1-7. 



Shell perforate, depressedly conoid, sublenticular, thin, fulvous 

 horny, dull and closely striated above and more distantly rugate, 

 decussated with very fine impressed spiral lines, smoother and 

 polished beneath ; spire depressedly conoid, suture scarcely im- 

 pressed ; whorls 6, flattish, regularly increasing, the last not 

 descending, angulate at the periphery, convex beneath ; aperture 



