JiSO LAND AND FKESUWATEK 



eostulation. The typical form is smooth and the first three whorls 

 are much more tumid. 



I found this species in the Eastern Garo Hills, and at Asalu in 

 the jST. Cachar Hills. 



Altc^tjs pekplexus, n. sp. (Plate CLV. fig. 11.) No. 2756 

 B.M. Coll. 



Localitij. Khasi Hills. 



Shell globosely conical, openly perforated ; sculpture smooth to 

 eye, but it is extremely fine close eostulation, close and fairly 

 strong on swollen portion near the sutural tube, which is long 

 and very fine ; colour strong ochraceous brown ; spire high, conic ; 

 suture well impressed ; whorls 4, well rounded, the constriction 

 slight in front of the sutural tube, then swelling slightly toward the 

 aperture, this is oval, subangulate above, subvertical on columellar 

 side ; peristome double, slightly reflected, much broader on outer 

 margin than on tho inner ; operculum closely multispiral, pale in 

 colour, with a rather deep central depression. 



Size: maj. diam. 3'7o mm. 



This species is not far removed from A. Ihcobaldi ; it is smaller 

 and more conical, the aperture difi'ers considerably as well as the 

 sculpture. There are three examples, the exact locality was not 

 recorded. 



Altc^us peosecttts, Bs, (Plate CXLIII. figs. 1, la, 1 b.) 



Benson, A.M. N. H. March 1857, ser. 2, vol. xix. p. 203. 



Pfeiff'er, Mon. Pneum. vol. ii. p. 30 ; Novit. vol. i. pi. 35, 

 figs. 21-23. 



Hanley & Theobald, Couch. Ind. p. 38, pi. xcii. figs. 2, 3. 



Theobald, Cat. Supp. 1876, p. 40. 



Godwin-Austen, J. A, S. B. vol. xl. pt. 2 (1871), pi. v. figs. 1, 1 a, 

 15. 



Original description : — " Testa mediocnter umhilicata, suhcam- 

 pamdato-dejjressa, suhremoie striattda, striis elevatis sjnralibus 

 remotiusculis cincta, ad spntiwn inJJatum anfractus idtimi confertis- 

 svnie et acutissime costulata, cdbida, versus cipicem miicronatum 

 rubelld ; spira brevi, sutiira profunda ; anfractdnis 4 convexis, sid>- 

 (qncaU exserto, ultimo ad latus pone stricturam valde gibboso, tidmhim 

 sidtiralem mediocrem gerente, antice Imviori ; apertura valde obliqua, 

 lirculari ; pcristomaie simplkivel duplici, interiori dtrplicis expansi- 

 usculo, exteriori dilatato, svperne ad angidum et ad basin alato- 

 producto, margine cohwiellari angusto. Operculo concavo, la^vi, 

 ■intdtispirato, 



" Diam. major 7, minor 6 ; axis 5 mm. 



" Habitat. Teria Ghat," extending west to the Habiang Garo 

 .Hills and east to South Jaintia. 



" Found abundantly on rocks by Mr. Theobald. 



*'It is related to the Burmese A. umbonalis (Annals, vol. svii. 



