42 H. F. Blanford — On Camptoceras i Sfc. [No. 1» 



portion of the lip being prolonged into five digitiform folds, nearly 

 a millemetre in length. The ridge-shaped fold between the two con- 

 stricted portions is very abrupt, as in Alycceus plectocheihcs, which 

 species, together with an yet unpublished form found by Major 

 Godwin- Austen in the Khasi Hills, are its nearest allies. In some 

 specimens, taken alive, the costulation has disappeared from the 

 greater portion of the upper whorls, and remains only in patches ; 

 so that on a cursory inspection, the whorls appear to be smooth and 

 striate ; it is most distinct on the inflated portion of the shell. 



I found a single specimen of this shell in 1856, in the Eungno 

 valley. Some years afterwards I received several specimens from 

 Mr. W. S. Atkinson, which were taken, I believe, near the station 

 of Darjeeling. 



Diplommatina ungulata, nov. sp. PI. II. fig. 5. 



Testa dextrorsa, ovato-conica, subrimata, tenuis, costulata, cereo- 

 albida. Spira superne conica ; sutura impressa ; apex obtusulus. 

 Anfractus 7 ; duo primi leevigati, ceteri confertim costulati j ante- 

 penultimus major, tumidus ; penultimus supra aperturam constric_ 

 tus ; ultimus valde ascendens, ad basin rotundatus. Apertura 

 subobliqua, subquadrata ; plica columellaris mediocris. Peri- 

 stoma subduplicatum, margine dextro evertato, juxta suturam 

 sinuatum, in expansionem angustam unguiformem, antice produc- 

 tum ; subtus rectum. Callus columellaris late appressus. 



Alt. 3 mm. ; diam. vix 2 mm. — Apertura) alt. 1 mm., lat. 1 mm. 



Habitat apud Darjeeling, 



The only species yet described that presents anything resembling 

 the peculiar conformation of the lip exhibited by this species is the 

 rare D. scalaria, W. Blanford, from the Khasi Hills, and it is 

 scarcely discernible in some specimens even of this species, which 

 moreover presents no other point of marked resemblance. In all 

 the specimens I have seen of D. ungulata, it is strongly marked ; 

 in some, however, more so than in others. 



I have had five or six specimens for some years in my collection 

 labelled as from Darjeeling, but I am uncertain whether I found 

 them myself, or received them from Mr. Atkinson. Dr. Stoliczka 

 recently found several specimens, about 600 feet below the station 



