272 Mr. W. H. Benson on new Helicidfe. 



a lens, obsolete bands of deeper and lighter tints may be de- 

 tected. 



The single adult specimen found by Mr. W. T. Blauford, at 

 4000 feet elevation in the Ruugun Valley, is in a weathered 

 state ; but one of two specimens in a young state, with the peri- 

 phery obtusely angulate, sent under a separate number, exhibits 

 a surface of the same colour as Landour specimens, but with 

 bands of chestnut broken up, on the lower whorl, into numerous 

 narrow lines, especially on the under side ; and there are vestiges 

 of oblique sharply-edged epidermal striae, indicating the abode 

 of the young shell in very damp situations. In the adult Lan- 

 dour example the obtuse angle at the periphery disappears, as 

 it does also in the large Darjiling variety. 



Helix Barrakporensis, Pfr. 



Two bleached and broken specimens of a small shell allied 

 to H. fastigiata, Hutton, from the Western Himalaya, were 

 found by ]\Ir. W. T. Blanford at Pankabari and in the Rungun 

 Valley, at elevations of 1000 and 4000 feet. They cannot be 

 distinguished from Pfeiffer's H. Barrakporensis, of which speci- 

 mens were sent to me by the late Dr. J. F. Bacon from Titalya, 

 on the border of the Sikkim Terai, before the shell was seen by 

 Dr. Pfeiffer; others were more recently taken by Capt. Hutton 

 in the Dhoon Valley below Landour, and were transmitted to 

 me by him under the JMS. name of Sivalensis, H. The fresh 

 shell is distinguished by its dark horn-colour as contrasted with 

 the pale tint of the smaller H. fastigiata, by its conspicuous 

 perforation, and by the want of margination at the suture ob- 

 servable in the latter species. At Mussoorie and Landour, H. 

 fastigiata is not uncommon above 5000 and beyond 7000 feet 

 elevation. I procured it most frequently creeping on the large 

 wet leaves of Saxifraga ciliata, in damp and shady situations 

 having a northern aspect. 



The occurrence of H. Barrakjwrensis near Calcutta is more 

 than doubtful. There is a country-house called " Titalya," 

 near Barrakpore, which may have given rise to an error in the 

 statement of the locality of the species. 



Helix delibrata, B. 



Of this shell, first found in the Khasia Hills, and again in the 

 southern provinces of Burmah, Mr. W. T. Blanford has sent a 

 decayed specimen which he procured at Pankabari (about 1000 

 feet elevation), at the foot of the great Himalayan chain, in a 

 climate very similar to that of Terai Ghat and of its Bui-mese 

 home. Helix Castra, B., accompanies it at each extremity of 



