MOLLTTSCA OF IN^DIA. 353 



marked notches on the outer margin ; peristome thickened, double, 

 well reflected, inner lip continuous. 



" Major diam. 0-22", minor diam. 0-19", alt, O'lo". 



"■Habitat. Poot of the Bhutan Himalaya, Akha Hills, at the 

 debouchement of the Earowli liiver, in Durrang, Assam. Collected 

 by Mr. John Burt. This species occurred again in a pill-box with 

 A. akhaensis. My friend John Burt, who resided at Paniputer Tea 

 Garden, not far from the gorge of the Barowli, sent me many 

 good shells from that part of the Durrang District. I stayed with 

 him a few days after the Dafla Expedition was over, and in a trip 

 we made together to the foot of the hills he learnt how and where 

 land-shells were to be found." 



Altc^tts BrKTii, G.-A. 



J. A.S. B. xlv. (1876) p. 176. 



" Hah. This shell, of which I previously possessed a single speci- 

 men only, found by Mr. J. Burt in the gorge of the Barowli Kiver, 

 a short distance to"^ the west, proved to be abundant on the outer 

 sandstone range about Dihiri Parbat (No. 2534 B.M.), the Burroi 

 Gorge, &c. 



'' A variety of it, differing slightly, which is much larger and more 

 depressed in form, but which in the crenate peristome and in form 

 of constriction is the same, occurred in the valley of the Dikrnng 

 and in the Yetay ravine. This variety measures in alt. O'lIS, 

 major diam. 0-25 in." 



Alyc^us buetii, G.-A., var. yetayensis. (Plate CXLIX. fig. 7.) 

 No. 2535 B.M. 



Locality. Yetay Ptavine, No. 24 Peak, Dafla Hills, five specimens 

 {^Godwin- Austen). 



Shell depressedly and globosely conoid, very openly umbilicated ; 

 sculpture, costulation fine, somewhat irregular and distant as it 

 approaches the termination of the sutural tube, it is then strong 

 and close. Behind the aperture it is quite smooth. Distinct 

 longitudinal strice are to be seen on the upper whorls; colour dull 

 pale ochraceous ; spire low, apex small, papillate ; suture much 

 impressed ; whorls 4|, the last swollen, smooth portion behind 

 aperture short with no ridges ; aperture circular, slightly angulate 

 afiove near suture ; peristome crenulafed on the outer margin, four 

 depressions with strongly defined intermediate processes, straight 

 above, well rounded on'the columellar side ; operculum multispiral, 

 very concave, and outer margin turned inwards. 



Size : maj. diam. 0-75 ; alt. axis 0-3 mm. Size of largest : maj. 

 diam. 0-9 ; alt. axis 3'5 mm. 



Between the conical globose form of A. clil-rangensis and the more 

 pyramidal A. bvrlii, there are several such as this which differ 

 considerably in their general shape and are something more than 

 varieties; from the couchological point of view they ^jresent excellent 



