8 H. H. Godwin-Austen — Descriptions of New [No. 1, 



blished by Mr. W. T. Blanford, having been hitherto only known from the 

 hills of Southern India and represented by 0. cuspidatus, Bs., the fringe on 

 the keel of which is however hairy. Colonel Beddome has, I believe, dis- 

 covered one or two other new forms. 



Alyc2eus sculptuetjs, n. sp., Plate IV, Fig. 2. 



Shell closely umbilicated, turbinate, horny or grey, with distant well- 

 marked costulation on the upper whorls, smooth below, finely ribbed on 

 swollen part of whorl, still more finely on the constricted portion, spire sub- 

 conoid ; whorls 4, the last slightly swollen, then constricted and slightly 

 swelling again towards the peristome, which is longitudinally undulated; 

 sutural tube moderate, aperture oblique, waved, peristome thickened, 

 expanded a little, double, with four deep undulations on the outer margin 

 and one less developed on the lower, the first undulation forming a deep 

 notch in the peristome near its junction with the last whorl. Operculum as 

 in A. crispatus, mihi. 



Major diam. 014, minor diam. 010, alt. O08, diam. of aper. O06, 

 sutural tube, 0*55 in. 



Hob. — Obtained by me on the hill ranges from near Tellizo Peak 

 to the eastward, and on Mungching Hill in Munipur. Abundant. 



This species is very close to A. crispatus, G-A. from the Khasi and 

 Jaintia Hills (J. A. S. B., Vol. XL, PI. IV, fig. 1), but is a much more closely 

 wound shell — a character which, when a large series of the two were placed 

 side by side, was found to be constant, and this, with the absence of the 

 ridge on the constriction, marks it as distinct. A. sculptilis, Bs., origi- 

 nally described from Burmah, and of which I collected identical specimens in 

 Munipur, is another form near to sculpturus, but has no crenulation of 

 the peristome and is plain and ridgeless on the constriction ; the three 

 forms pass into one another. 



Diplommatina Buetii, n. sp., Plate IV, Fig. 4. 



Shell dextral, tumidly and ovately fusiform, colour pale umber or sienna- 

 brown, very finely and closely costulated under lens, almost smooth to the 

 naked eye, spire rapidly attenuate, apex sharp, suture well impressed 

 below ; whorls 8, the three last swollen and rounded, those near apex 

 flat, penultimate the largest, the last rising slightly towards the aperture, 

 which is vertical, broad, and well rounded below, peristome double, very 

 thick, continuous, columellar tooth strong. 



Hah. — Base of the Eastern Himalaya, at the debouchement of the Bur- 

 rowli River, Assam, where it was collected by Mr. J. Burt, after whom I have 

 named it, and who kindly collected some other interesting shells in the 

 same locality. 



It is a form of the type D. diplocheilibs, Bs., but the peculiar attenuate 

 spire and tumid shape below are very distinctive. 



