HELIX.— Plate CXXIII. 



Species 738. (Mus. Benson.) 



Helix okobia. Ilel. testa miiiuti umbilicatd, orbicuhri, 

 mbJepressa, arcuatim striatd, atriUjuxta suluram pli- 

 catis, liiieis impresm spiralU/us nub knle subiilhsimi 

 decussatd, fulvo-oUvaced, fascid rufescente-cmtaned ad 

 peripheriam cim/ulald, ban virescente, sub lente minu-, 

 tissimi granulatd ; aii/ractibm quinque, converts; 

 aperturd lunari ; peristomate aimpUci, intus calloso- 

 annulato. 



Tub mountaineer Helix. Shell minutely umbilicated, 

 orbicular, slightly depressed, arcuately striated, striae 



plicated next the suture, very finely decussated be- 

 neath the lens with impressed spiral stria;, fulvous- 

 horny, encircled with a reddish-chestnut band at tiie 

 periphery, base greenish, beneath the lens very mi- 

 nutely granidated ; whorls five, convex ; aperture 

 lunar ; lip simple, eallous-riuged within. 



Benson, Ann. and Mag. Nat. Hist. 1848, vol. ii. p. 158. 



Hab. Darjeeling, Sikkim-Himalaya. 



Convex on both sides, with a very small but deep um- 

 bilicus, characterized by minute sculpture beneath the lens. 



