Mr. W. H. Benson on new Helicicbe. 265 



rude tuberculatis, plagis duabus basalibus lateralibus fasciaque 

 postica albis, femoribus posterioribus apice albidis. Long. 3-3f lin. 



Desmidophorus strenuus. Niger, crassus, rostro crasso breyi 

 rude punctato, thorace scabro, elytris fasciculatis scabro-striatis 

 valde convexis, pedibus testaceo-pubescentibus. Long. 5 lin. 



Desmidophorus inexpertus. Ferrugineus, brevis, subovatus, 

 rostro nigro brevi crasso multicarinato, thorace subtuberculato, 

 elytris tuberculato-striatis fascia tenui albida. Long. 2f lin. 

 [To be continued.] 



XXVIII. — Descriptions of new Helicidse contained in the Darjiling 

 Collections 0/ Messrs. W. T. and H. F. Blanford. By W. H. 

 Benson, Esq. 



1. Helix macropleuris, nobis, n. s. 



Testa subaperte umbilicata, attennato-])yramidata, oblique minute 

 arcuato-striata, superne costis remotis elevatis arcuatis munita, 

 decorticata albida, nitidula ; spira pyramidali, superne attenuata, 

 apice papillari, papilla Iseviori, sutura carinato-marginata ; anfrac- 

 tibus 8 convexiusculis, ultimo non descendente, filoso-carinato, 

 subtus planulato, versus aperturam convexiusculo, circa umbilicum 

 profundissimum, anguste perspectivum, angulato ; apertura obli- 

 qua?, transversa, quadrata, peristomate tenui, recto, margine 

 columellari lato, expansiusculo. 

 Diam. major 5, minor 4h, long. 5^ mill. 

 Habitat in valle Rungun, prope Darjiling, rarissime. 



This shell is an exaggeration of the Bascauda type of the 

 Khasia Hills, with a more remote costulation and lengthened 

 attenuate spire. The aperture of the single dead specimen col- 

 lected by Mr. W. T. Blanford is not in the best condition. 



2. Helix Corys, nobis, n. s. 

 Testa perforata, elongato-pyramidali, oblique confertim minutissime 

 costulato-striata, albida, non nitente ; spira anguste pyramidali, 

 apice obtusiusculo, sutura impressa ; anfractibus .^| convexiuscu- 

 lis, ultimo ad peripheriam filoso-carinato, basi planiuscula ; aper- 

 tura obliqua?, quadrata, longitudine latitudinem sequante, peri- 

 stomate tenui, recto, margine columellari verticali, longe vix ex- 

 pansiusculo. 

 Diam. 2, long. 3 mill. 

 Habitat in valle Rungun, prope Darjiling, rarissime occurrens. 



A single dead specimen occurred to Mr. W. T. Blanford. 

 This minute shell is of a type allied to the last-described species 

 in form, but is very differently sculptured. Its more pointed, 

 not papillate apex, and the absence of costulation at somewhat 

 remote intervals, and of a marginate suture, through so many 

 whorls, prove that it is not the young of mncropleuris. 



