460 Mr. W. II. Benson on new Land- Shells from Darjiling. 



XLIX. — On ?iew Land- Shells from Darjiling, with a series of new 

 Indian Species o/Achatina. Described by W. H. Benson, Esq. 



Diplommatina Blanfordiana, B. 



Testa dextrorsa, foveato-rimata, ovato-acuminata, confertim arcuato- 

 costulata, albida, spira ovato-pyramidata, superne attenuata, apice 

 acutiusculo, sutura impressa ; anfractibus 7|- convexis, antepenul- 

 tinio majusculo tumido, ultimo antice ascendente ; apertura sub- 

 verticali, late auriculari, plica columellari valida nutante munita, 

 peristomate expanso, extus varlce retrorelicta remotiuscula valida 

 aucto, infra ad sinistram subangulato, marginibus callo parietali 

 crasso expanso appresso junctis, columellari leviter sinuato. 

 Operc. . ? 



Long. A^, diam. 2^ mill. 



Habitat prope Darjiling. Teste "W. T. Blanford. 



Independently of its smaller size and stronger costulation, 

 this shell is distinguished from D. pachycheilus by its foveate 

 rimation behind the thin columellar lip, and by the retrorelict 

 variciform second peristome, which is remote in its course, on the 

 right side, from the thin actual peristome, but joins it below the 

 umbilical cavity. In D. pachycheilus the peristome is thickened 

 and bifurcate at the insertion of the outer lip, and there is no 

 remote varix ; while the incrassate columellar lip is reflected 

 over the rimation, and entirely conceals it. The last whorl 

 ascends more conspicuously in front than in D. pachycheilus, 

 although it rises considerably also in that shell — a feature which 

 I omitted in the description given iu the 'Annals' for 1857. 

 The costulation of D. pachycheilus is very variable; in some 

 specimens it disappears on the lower whorls, in others on the 

 upper ones only ; occasionally it pervades the surface. 



The following characters may be added to those already given 

 of D. piachijcheilus : — 



Anfractu ultimo antice ascendente ; peristomate superne ad angulum 

 bifurcato, margine columellari externe callo expanso irregulari 

 appresso, periomphalum obtegente, munito. 



It is found among dead leaves with D. Blanfordiana. 



Ennea stenopylis, B. 



Testa longe curvato-rimata, cylindraceo-ovata, arcuatim costulata, 

 sub epidermide cereo-cornea albida ; apice conoideo-obtuso, sutura 

 impressa; anfractibus 6 angustis, convexiusculis, ultimo minore 

 compresso, antice leviter ascendente, latere dextro antice substran- 

 gulato, valde scrobiculato, basi anguste compressa ; apertura ver- 

 ticali, subaxiali, triangulaii-obovata, subcordiformi, ^ testae supe- 

 rante, peristomate nndi(jue ex[)anso calloso retiexiusculo, margine 

 dextrali suj)erne [)rofunde siiuiato, plica angular! parietali valida, 

 superne sub-l)icruri, margines [)eristomatis jmigente, subtus lamcl- 



