KHASIELLA. 165 



when K. liyba is compared with the sharply-keeled species or this 

 genus, such as dianacterica, Bs., austeni, W. T. Blf., and serrula, Bs.] 



Of doubtful affinity, plicate or ribbed above, carinate or 

 angulate at periphery. 



a. Perforate. 



*255. Khasiella? chloroplax, Bs. (Helix) A. M. N. H. (3) xv, 

 1865, p. 14; Pfr. (Helix) Mon. Hel. v, 1868, p. 80; H. 8f T. 

 (Helix) C. I. 1876, pi. 32, figs. 1, 4; Nevill, Nanina (Rotula), 

 Yark. Miss., Mol 1878, p. 16 ; id. Hand-l. i, 1878, p. 33. 



" Shell perforate, subconoidly depressed, thin, plicately striated 

 above, slightly striated beneath, very finely decussated, translucent, 

 scarcely polished, greenish horny ; spire subconoid, depressed, 

 apex obtuse, suture impressed ; whorls 5, slowly increasing, rather 

 convex, the last angulate above at the periphery, convex beneath ; 

 aperture oblique, angularly lunate ; peristome thin, straight, 

 margins widely separate, columellar margin scarcely reflected 

 above. 



" Diam. barely 8, axis 4 mm." (Bs., Latin.) 



Hab. Near Simla (Theobald), near Murree (Stoliczka, teste 

 Nevill). 



I have not been able to see a specimen of the Simla form, and 

 the . shells I have examined from Murree, apparently determined 

 by Nevili, dc not appear to me to agree with Benson's description 

 or Hanley's figure ; they are much higher in the spire and brown, 

 not greenish horny, and I cannot detect decussated sculpture. 

 It is uncertain whether the type was adult. Some shells from 

 Murree, according to Nevill, measured 11 mm. in diameter and 

 6 in height. 



In Hanley's figure a compressed keel is shown, the aperture is 

 elliptically ovate, and the columelJar margin of the peristome is 

 much curved and vertical above. 



This and the two next species are referred to Bensonia on 

 account of the resemblance of their shells 'to the larger forms 

 B. camura and B. nipalensis. 



256. Khasiella ? kashmirensis, Nevill, Nanina (Rotula), Yark. Miss., 

 Mol. 1878, p. 16, pi. figs. 13-15 ; id. Hand-l. i, 1878, p. 33. 



Shell perforate, conoidly depressed, almost lenticular, carinate, 

 thin, plicately striated above, less strongly beneath, the striation 

 becoming obsolete towards the umbilicus, not polished, translucent, 

 brown ; spire low, conoidal, suture slightly impressed ; whorls 5, 

 rather convex, slowly increasing, the last sharply keeled, convex 

 beneath, not excavated around the umbilicus ; aperture oblique, 

 angularly lunate (the angle disappearing in adults) ; peristome 

 thin, columellar margin slightly oblique above, curved below. 



Major diam. 7^, min. 6|, height 3| moi. 



Hab. Sonamarg, Kashmir, abundant (Stoliczkct). 



