MOLLUSCA OF INDIA. 361 



specimens Nos. 5528-44 received from the Indian Museum, Cal- 

 cutta, as constrictus, var., but I consider them true constrictus, see 

 figs. 4, 4 a, Plate CXLVII. This Dafla shell is of a different, 

 more elongate shape, although the umbilical region is similar and 

 perforate. 



ALTCiEUs (CrcLOKTx) ELEGANs, n. sp. (Plate CXLVII. fig. 9.) 



Locality. Shengorh Peak, Dafla Hills, No. 2594 B.M. (Godwin- 

 Austen). 



Shell elongately turbinate, perforate ; sculpture very fine, close, 

 regular costulation ; colour whitish with a burnt sienna tint ; spire 

 high, apex blunt ; suture impressed ; whorls 4^, sides very convex ; 

 aperture circular; peristome double, not thickened, with a flange 

 hiding the umbilicus. 



Size : maj. diam. 2*6 ; alt. axis 2*0 mm. 



Alyc^tjs (CrcLOETx) GRAPHicus, W. Blf., var. No. 2598 B.M. 



Locality, Burroi Gorge, foot of the Dafla Hills (Godwin- Ansten). 



Specimens from this locality are very close to those from the 

 Khasi Hills, N". Cachar, etc., but there is variation when they are 

 examined side by side. 



A specimen from the Dikrang Valley, No. 2597 B.M., is almost 

 identical with the var. dihingensis— from, the Dibing valley near 

 Sadia — described further on. 



Alyc^us paucicostatijs, n. sp. No. 2595 B.M. CoU. (Plate 

 CXLVII. figs. 5,5 rt.) 



Locality. Toruputu Peak, Dafla Hills (Godwin-Austen). 



Shell narrowly perforate, globosely conical, transparent ; sculp- 

 ture close, well-marked, regular costulation, 3 strong costiE behind 

 aperture, one close to it inconspicuous ; colour rich pale ochraceous • 

 spire moderately high ; suture impressed, 5 costse on sutural tube ; 

 whorls 4, well rounded, constricted close to the club-like tube ; 

 aperture circular, nearly vertical ; peristome closely double, re- 

 flected ; operculum ochre in colour, smooth with central depression, 

 evenly spiral. 



Size: maj. diam. 3'1 ; alt. axis 2-3 mm. 



This species is much smaller than a closely allied one from same 

 area. 



3 a. The Miri Hills. 

 Including the Valley of the Subansiri and its Tributaries. 

 Recently explored and surveyed by Captains Morshead and 

 Bailey, R.E., of the Indian Survey— 1912-13. 



A few species in other genera, but no Ahjccei as yet received 

 from this area, 



2a2 



