MOLLUSCA OF INDIA. 349 



The typical specimen iu the Blanford collection and the one I 

 have figured on Plate CXLVII. figs. 4, 4 a is somewhat higher in 

 the spire than this one. The surface of the first is so bleached that 

 the costulation can only be seen by close examination with a high 

 power, but it agrees iu every way with that of this fresh specimen. 



A. constrictus, Bs. has been sent from Damsang-Daling District, 

 No. 2505 B.M. 



ALrciETJs (Cyclortx) OTiPHOKTJS, Bs. (Plate CXLVII. figs. 2, 

 2 a, 2 b.) 



Specimen figured, No. 2565 B.M., was compared with the 

 typical specimen in the Cambridge Museum. 



A. M. N. H. ser. 3, vol. iii. (1859) p. 178. 



Pir. Moil. Pneum. vol. iii. p. 46. 



H. & T. Conch. Ind. p. 39 (1876) pi. xcv. figs. 5, 6; Kevill, 

 Hand-1. i. 1878, p. 292 {LocaUty. Khasi Hills, Naga Hills, Arakan 

 Hills, Pegu & Shan States. All very doubtful localities); Theobald, 

 Cat. L. & P. \V. Moll. B. I. 1873, p. 40 ; Godwin-Austen, otiphorus, 

 Bs. var., J. A. S. B. vol. xl. (1871) p. 93, pi. v. figs. 6a, 66; 

 W. T. Blf., A. M. N. H. 1864, p. 458, section ii. 



Alijca'us otiphorus, Bs. var., J. A.. S. B. vol. xl. (1871) p. 93, 

 pi. v. figs. 6 a, 6 6, see A. mangutensis. No. 5. 



Original description : — " Testa perforata, ovato-ghbosa, oninutis- 

 sime confertim striata, cmereo-cornea ; spirct conica, apice obtusiusado, 

 rutilo, sutura valde impressa ; anfractibus 4 convexis, ultimo veil- 

 tricoso, ah apertura suhremote. consti-icto, turn pone labrum turaidius- 

 culo, laevigata, tubulum brevissimum suturalem gerente ; apertura 

 vix obliqua, peristomute duplici, interno continuo, expanso, mterdum 

 breviter porrecto, externo dilatato, rejlexo, ad umbiUcum j^rocessu 

 auriculari brevi, subito reflexo, perforationem subtegente mu-iito. 

 Operculo normali, concaviuscido, plnnato. 



" Long. 4|, diam. obliq. 4 mill. 



"Habitat'ad Pankabari (1000 ped. alt.) et in valle Bunguu 

 (4000 ped.) prope Darjiling Himalayanuni. 



" This shell, which seems to be not uncommon on the west side of 

 the Euugun Valley, as well as at a lower elevation in the Sikhim 

 Ranges, was forwarded to me by Mr. H. Blanford in 1857. In 

 form it approaches A. amphora and constrict^is, and, like the 

 latter, which belongs to the same type in the mode of constriction, 

 it is remarkable for the shortness of the sutural tube, but is at 

 once distinguished by the process of the peristome at the um- 

 bilicus." 



ALTCiEus (Cycloetx) SUMMITS, n, sp, (Plate CXLVII. figs. 3, 

 3rt.) 



Localit;/. Eechila Peak, Western Bhutan. No, 2573 B.M. 



Shell globosely conoid, perforation quite hidden ; sculpture fine 

 and rather close costulation, 7 to 8 very fine adjacent to the 

 suturul tube, which is short and pointed, nob knob-like ; colour 



