MACROCHLAMYS. 



well marked, fine, regular, longitudinal striation, showing even on 

 the lower side; it is a far stronger striation than is seen in 

 M. sathilaensis ; colour pale ashy brown ; spire flatly conoid ; 

 suture impressed. Whorls 5, not fully grown ; aperture widely 

 lunate, subvertical ; peristome very thin ; colurnellar margin sub- 

 vertical, with slight reflection. 



Size : rnaj. diain. 9*0, alt. axis 3| mm. 



The coil of the spire differs from that of M. sathilaensis. 



Locality. Bichila Peak, Bhutan frontier. 



Animal. Pale-coloured throughout, with black head and the 

 extremity of the foot tinged very slightly darker towards the tip 

 of the overhanging lobe. Both the shell-lobes are very long, 

 particularly the right, longer than in any spirit-specimen I have 

 ever handled. The right dorsal lobe is small, the left in two 

 parts. The lobe over the mucous gland is not very pointed. The 

 visceral sac is umber-brown, sparsely mottled in front with black, 

 and a long black streak next the renal organ. 



Generative organs. The coiled ca3cum is exactly like that of the 

 typical species. The kale-sac is long. The spermatheca long. 

 The radula is like that of allied species in every way (only the 

 central tooth and admedians seen) : + . 2 . 10 . 1 . 10 . 2 . +] 



b 2 . Smooth. 



130. Macrochlamys lubrica, Us. (Helix) A. M. N. H. (2) x, 1852, 



p. 349 ; Pfr. (Helix) Mon. Hel. iii, 1853, p. 629 ; id. t. c. iv, 

 1868, p. 44 ; H. $ T. (Helix) C. I. 1876, pi. 51, figs. 8, 9 ; 

 Godwin-Austen, Mol. Ind. i, 1883, p. 118, pi. 24, fig. 7. 



Shell perforate, depressed, smooth, polished, obsoletely striated, 

 moderately thin, yellowish to brownish tawny ; spire very low, 

 sometimes almost flat, suture slightly impressed ; whorls 5, convex 

 above, the last rather broad, rounded at the periphery, moderately 

 convex beneath ; aperture broadly lunate, almost vertical ; peri- 

 stome acute, straight, basal portion sometimes slightly thickens and 

 white inside, columellar margin curved, slightly reflected above. 



Major diam. 26, min. 21, height 12 mm. 



Hal). Sikhim, 4000-7000'. Not rare about Darjiling. 



This shell may be known by its smoothness, its few whorls, and 

 its broad last whorl. The animal has not been described. 



a 3 . Conoidly depressed, rugose, transverse (but no longitudinal) 

 sculpture. 



131. Macrochlamys patane, Bs. (Helix) A. M. N. H. (3) iii, 1859, 



p. 270; Pfr. (Helix) Mon. Hel v, 1868, p. 113; H. $ T. 

 (Helix) C. I. 1876, pi. 130, figs. 5, 6, 7 ; Godwin-Austen, Mol. 

 Ind. i, 1888, p. 211, pi. 53, fig. 5 (shell). 



Shell perforate, conoidly depressed, thin, pale horny or ochreous 

 homy, translucent, dull and rugosely striated across the whorls 



