a new Species <*/ Spiniculmn. 509 



rising siuMeiily ; suture shallow ; aj»i'itur>' wiile, ucarly 

 circular, a little higher than broail, (>ljli<|ue ; peristome con- 

 tinuous, rather thickened, slightly reflected, pale yellowish, 

 cohunellar margin rounded ; operculum of the same colour as 

 the shell, having 5 or acutely defined volutions, the inter- 

 spaces with the usual oblirpie lines of growth. 



Size: niaj. diam. 49, uiin. cliani. -l."i; alt. axis, max. 20, 

 min. 19 mm. 



Loc. Khasi Hills; three specimens obtained by Mr. Fulton. 



The afKiiity of this beautiful species is with C. sidmensitfj 

 from which it differs in its' more depressed form and more 

 oblique aperture, and esjjecially in the coloration. The exact 

 locality is not known; the Khasi Hills is a large tract, and 

 many s|)ecies found on the northern slopes draining to the 

 liralimaputra are not found on the south si^le, while inter- 

 vening is a high grassy plateau with a very scanty number 

 of land-shells. 



Spiraculum natjaense, sp. n. 



Shell discoidal, upper surface flat, widely uinbilicated ; 

 sculpture, strong longitudinal striation, covered with a thick 

 epidermis, with two parallel bands of close-set hairs on the 

 peripliery. Colour umber, with a series ot darker bands 

 crossing the whorls. Spire quite flat ; suture deep, the sutural 

 tube is 4"5 mm. behind the peristome, is well developed, 

 arched and bending over, and lies directed backwards and 

 parallel with the suture ; whorls 5, rounded, the last 

 descending very slightly ; aperture circular ; peristome 

 thickened, white, continuous, with an angulate notch above 

 and close to the body-whorl ; operculum widely spiral, shelly, 

 whitish grey. 



Size : maj. diam. 17"5, min. 14*0 ; alt. axis5'25 mm. 



Loc. Maokokchung, Naga Hills {Muspratt). In coll. Col. 

 Beddome. 



This small form may be distinguished from S. hispidum^ 

 var. minor J of Teria Ghat in the Khasi Hills and base of the 

 Dafla Hills, in the form and direction in which the sutural 

 tube lies backward on the shell ; in hispidum it lies across 

 and nearly at right angles with the suture, in this new form 

 it is on the line of the suture. 



