16 
SECOND YARKAND MISSION. 
of monticola. According to the “ Conchologia Indica,” the type form of H. scutella is from the 
Khasi Hills, and the variety from Kashmir ; after a careful consideration of the original 
description, I think Mr. Hanley is correct in this view. Instead of 3^, II. monticola 
lias 4J, whorls, which increase more regularly than in II. scutella ; the colour is of a 
greenish-brown, instead of bright green ; the apex less acute ; the aperture much higher in 
proportion to its breadth ; the columella not oblique at all, almost straight and rounded at the 
base. This species is found abundantly everywhere throughout the North-West Himalayas 
in company with the preceding. 
Specimen from Murree : diam. 1CA, axis 5-|, alt. 8^; apert. alt. 1C% alt. 101 mm. 
Pfeiffer’s original measurements of H. monticola are: — diam. maj. 18, alt. 7-|- mm. 
This is evidently an even more depressed form than the one here recorded from Murree, and 
does not at all agree with the preceding species, which possesses moderately exserted whorls 
and has been figured by both Reeve and Hanley for II. monticola ; the latter author’s figure 
measures : — diam. 20|, alt. 13 mm. Pfeiffer’s description, too, suits this shell, and not the 
preceding, when he says, “ Depressa, Sfc., spira plana ; anfract. 4, celeriier accrescentes 
planiusculi, ultimus depressus, non descendens, &c.” 
5. Nanina (Rqtula) chloroplax, Bens. 
Helix chloroplax, Benson, Ann. & Mag. Nat. Hist., 1865, ser. 3, vol. xv, p. 14 (near Simla). 
Pound abundantly near Murree, agreeing exactly with the original description and the 
figure in “ Conchologia Indica,” pi. xxxii, figs. 1 and 4. 
A few of the specimens found were larger than the type, which was only 8 mm. in 
diameter. Diam. max. 11, axis 5, alt. 6 ; apert. lat. 6, alt. 4 mm. 
6. Nan in a (Rotula) kashmirensis, n. sp., Pigs. 13 — 15. 
Shell small, closely resembling the preceding, from which it can, however, he easily 
distinguished by its smaller size, less depressed shape, much more closely wound whorls, 
higher spire and less acute keel ; by the more convex base, which does not possess the ex- 
cavated depression round the umbi licus so characteristic of its ally ; the umbilicus itself also is 
smaller; the sculpture is apparently the same, above subplicately striate, below the same hut 
less developed than above. I think both should rather he described as most minutely 
punctuate, rather than “ tenuissime decussata” as in the original description of W. chloroplax. 
The aperture is quite different, being much less dilated in the present species, with scarcely 
any trace of the acute angulation in the middle of the outer margin, and with the columella 
less oblique and more rounded at the base. Pull-grown type of N. kashmirensis, diam 7J, 
axis 3f, alt, 4|; apert. lat. 3^, alt. 3 mm. Young specimen of N. chloroplax (for compari- 
son) : diam 7i, axis 3|, alt. 4} ; apert. lat. 4, alt. 3 mm. 
Abundant at Sonamarg. 
7. Nanina (Microcystis?) sonamitrgensis, n. sp., Pigs. 16—18. 
Shell small, depressed, thin, horny -brown, with the suture distinct ; roughly, regularly and 
closely ribbed above ; sculpture of a similar kind, hut almost obsolete, can he traced on the 
