MOLLUSCA OF INDIA. 403 



Altcjotts (CrcLORYx) BURRAiLENSis, 11. sp. (Plate CXLYir. 

 figs. 6, a a.) No. 2591 I3.M. 



Locality. Japvo Peak, Naga Hills, 9890 ft. (Gorhvin-A^isten). 



Shell : perforation bidden, shell conoid ; sculpture : veiy close, 

 fine, and regular costulation ; apex smooth ; distant fine costulation 

 between sutural tube and aperture ; colour whitish, but often briglit 

 pale sienna, darker on the apex ; spire high, conical, apex blunt ; 

 suture very impressed ; whorls 4, strongly rounded ; aperture 

 circular ; peristome double, slightly expanded on the outer margin, 

 a slight flange covering the perforation ; operculum pale ochra- 

 ceous, multispiral, smooth, slightly concave. 



Size: maj. diam. 2-8 ; alt. axis 1*8 mm. 



Close to A. {Cycloryx) manyutensis of the Jaintia Hills, but 

 difi'ers in form of the spire, which is much broader and blunter 

 than in that species. 



Obtained also on the Munipur side of the Burrail, j^o. 2606 

 B.M. ; and Angaoluo Peak, No. 2749 B.M. 



This species is about the same size as A. granum, from 

 Margarita at foot of the Eastern Naga Hills, found there by the 

 late Mr. W. Doherty, is of more depressed form, it is much more 

 openly umbilicate, and the close costulation coarser than in 

 (jranam. 



Altc^tts (Cvclortx) khunhoensis, n. sp. (Plate CXLVII. 

 fig. 8.) No. 2520 B.M. 



Loeality. Khunho Peak, Naga Hills {Oodunn- Austen). 



Shell elongately conoid, rimate, thin, transparent ; sculpture 

 closely and similarly costulated throughout, no closer near the 

 short sutural tube, very unusual in the genus ; apex smooth ; 

 colour pale pinkish, ochraceous on apical whorls ; spire high, sides 

 fiat ; suture impressed ; whorls 4, very rounded, constriction close 

 to sutural tube, flat and smooth thence to the aperture ; aperture 

 nearly circular, vertical ; peristome simple, reflected ; columellar 

 margin rounded. 



Size: maj. diam. 1"9; alt. axis 1*3 mm. 



This is Ah/CfeKS (Dion/x) qrajjliicus, W. Blf., var. minor, 

 Godwin-Austen. (Plate CXLlV. figs. 9, 9 a.) 



Godwin-Austen, J. A. S. B. xliii. pt. 2, 1874, pi. iii. figs. 8, 8 a. 



Original description. — " This shell is much smaller than grapJii- 

 cus from the Khasi Hills, &,c., and is longer in spire, with close 

 costulation throughout. 



"The ditferences, though persistent in Naga Hill specimens, are 

 not suflicient to make the form distinct. 



"Major diam. 0-10", alt. 0-12"." 



Alyc^us (Cycloryx) graphictjs, W. Blf., var. variabilis. 



Lhota Naga. No. 2607 B.M. (Plate CXLVI. fig. 4.) 



This is another variety of graphicus. The costulation on the 



