496 Records of the Indian Museum. [\'ol. VIII, 



No. 3581 B.M., between N. 28° 15'— 29° 15' L. 94° 5o'— 95^ 

 10', is not so solid a shell, smoother and higher in the spire. 

 It comes ver}' close to this spices. Major diam. 33-0 ; alt, axis 

 15 mm. 



Spiraculum oakcsi, n. sp. 

 (PI. xxxix, figs. 3, 3a). 



Locality: Abor Hills, 4-i-i3 (0«/^5s). 



Shell depressedly discoid, widely umbilicated. Sculpture close, 

 fine transverse lines of growth in the epidermis, no spiral ribbing. 

 Colour: ground, grey white, crossed by regular bands of brown, 

 zigzag below, merging into a narrow dark peripheral band, from 

 which zigzag lines are given off on the basal side. Spire scarcely 

 raised above the last whorl. Suture well impressed, the sutural 

 tube ver3^ long, 7 mm., narrow, set obliquely backward, nearly 

 reaching to the apical whorl. Whorls 5, regularly increasing. 

 Aperture circular. Peristome continuous, thickened, reflected at 

 the upper inner angle, expanded forward from above and below, 

 horizontally upon the median line of the penultimate whorl form- 

 ing a narrow slit. Columellar margin rounded. Operculum multi- 

 spiral, slightly concave, smooth at centre, edges of the outer whorls 

 distinct and slightly raised. 



Operculum multispiral, edges of suture slightly raised, concave 

 in centre. 



Size : major diam. 26*0 ; alt. axis 5'5 mm. 



Five specimens of this beautiful species came to hand ; it does 

 not recall any species as yet found in Assam or Burma, 



Type No. 3081 Brit. Mus. 



Two specimens to Indian Museum. 



Spiraculum kempi, n. sp. 

 (PI. xxxix, figs. 4, 4a and 5, 5a). 



Locality: Abor Hills, 4-i-i3 (Oakes). 



Shell flatly discoid, widely umbihcated. Sculpture close, epi- 

 dermal lines of transverse growth both above and below, conspicu- 

 ous close spiral lirae with every 2nd or 3rd somewhat stronger — 

 in the type 2nd much more conspicuous on the central line of 

 the last whorl, producing an angulate upper surface. Colour 

 rich umber brown, very indistinct transverse colouring, and a 

 broad peripheral band. Spire very low, only just raised above the 

 last whorl. Suture deeply impressed ; the sutural tube is 9 mm. 

 behind the peristome, extremely short, and does not appear to 

 grow longer, it is of small diameter. Whorls 5, rounded on peri- 

 phery. Aperture circular. Peristome white, thickened, double, 

 reflected, the outer lip above forming a low ridge behind the ex- 

 panded inner lip, thus forming the short open descending wing. 

 Columellar margin rounded. Operculum roundly convex, the whorl 

 in double filaments distantly raised, close and smooth at centre. 



