162 ZONITID^E 



A smaller thinner shell than K. ornatissima, with fewer whorls 

 and more distant less distinctly costulate sculpture. 



252. Khasiella ? pingoungensis, Godwin- Austen (Euplecta), P. Z. S. 



1888, p. 242. 



Shell perforate, conoidly depressed, sublenticular, pale yellowish 

 horny, arcuately and filiformly costulate above, the costulation 

 passing over the periphery and disappearing on the lower surface, 

 which is smooth and polished in the middle ; spire low, conoid, 

 apex obtuse, rounded, suture impressed ; whorls 6J, convex, 

 rather closely wound, the last bluntly angulate at the periphery, 

 convex beneath; aperture oblique, angularly lunate, margins 

 slightly converging ; peristome rather obtuse, upper and basal 

 margins arcuate, right margin sinuate, columellar margin almost 

 vertical at its insertion and briefly expanded. 



Major diam. 14, min. 13, axis 7 mm. 



Hob. Pingoung, Shan Hills, Burma (Spratt). 



b. Periphery sharply keeled. 



253. Khasiella serrula, Bs. (Helix) J. A. 8. B. v, 1836, p. 352; Pfr. 



(Helix) Mon, Hel. i, 1848, p. 206 ; id. vii, 1876, p. 291 ; H. $ T. 

 (Helix) C. I. 1876, pi. 50, fig. 7. 



Helix bensoni, v. d. Busch, Phil Abbild. i, 1842-5, p. 11, pi. 1, 

 fig. 7. 



Shell openly perforate (narrowly umbilicated), depressedly sub- 

 turbinate, almost lenticular, whitish horny, costulately plicate ; 

 spire low, conical, apex acute ; whorls 6|-7, slightly convex above 

 inside, each with a compressed keel, which projects above the 

 suture, the last whorl moderately convex beneath with an acute 

 keel, serrated by the transverse plications which pass over it to 

 the lower surface and there pass into undulating radiate striation ; 

 aperture slightly oblique, angulately lunar ; peristome thin, basal 

 margin slightly arcuate, and together with the columellar margin 

 faintly reflected. 



Major diam. 13, min. 12, axis 7 mm. 



ffab. Khasi Hills (base of). 



254. Khasiella hyha, Bs. (Helix) A. M. N. H. (3) vii, 1861, p. 83 ; 



Pfr. (Helix) Mon. Hel. v, 1868, p. 181 ; H. $ T. (Helix) C. /. 

 1876, pi. 30, figs. 2, 3; Theobald (Trochomorpha), J. A. S. B. 

 1878, 2, p. 143 ; Godwin-Austen, A. M. N. H. (7) xx, 1907, 

 p. 55, figs. 1-5 a. 



Shell openly and perspectively umbilicated, convexly subtrochi- 

 form, thin, obliquely, closely, and coarsely plicate, crossed by fine, 

 close, subcostulate spiral (longitudinal) stride above, smoother and 

 irregularly reticulately striated on base, brownish horny; spire 

 convexly conoid, sides convex, apex obtuse, suture linear, scarcely 

 impressed ; whorls 7-8, flatly convex above, slowly increasing, the 



