400 LAND AND FEESHWATER 



"Major diara. 0-31-0-28", minor 0-24-0-20" ; alt. 0-17-0-15"; 

 diam. ap. 0-12" ; sutural tube 0"15". 



'■'•Habitat. Two specimens were obtained for me by Mr. Belletty 

 on Angaoluo Teak, Naga Hills, at 7000 ft., during the field-season . 

 of 1872-73. I found it again further to the east at Kezakenomih, 

 and at the head of the Lanier liiver at about 5000 ft., wiiere the 

 specimens Avere much larger. It comes near to the forms of 

 A. ingrami, W. Blf., var., pis. iv. & v., J. A. S. B. vol. xl. pt. 2, 

 1871, from the same range of mountains, but its tumid 8hai)e, and 

 particularly the very produced aperture, render it a very distinct 

 and well-marked species. I have named it after that very accom- 

 plished conchologist and malacologiht, Dr. F. Stoliczka of the 

 Geological Survey of India." 



A single specimen No. 2758 B.M. from Teria Ghat is very near 

 this species, differing in being smaller, major diam. 4*75 mm., with 

 a flatter spire, and costulation adjacent to the sutural tube very 

 much finer, not so closely wound. 



ALTCiEUs SERKATus, G.-A. (Plate CXLIV. figs. 6, 6 a, 6 b.) 

 No. 2487 B.M. Type. 



. Godwin-Austen, J. A. S. B. 1874, xliii. pt. 2, p. 148, pi. iii. 

 figs. 5, 5a, 56; Theobald, Cat. Supp. 1876, p. 40; G. Nevili, 

 Hand-list, i. 1878, p. 291. 



Original description : — " Shell very closely umbilicated, turl)inate, 

 rather thin, pale corneous or dark brown, finely costulated on 

 tumid portion of the last whorl ; rest of shell smooth, with shining 

 surface ; suture moderately impressed. Spire conoid, apex pointed. 

 Whorls 4, rounded, the last very slightly tumid, constricted and 

 enlarged into a low, recurved ridge. Sutural tube moderate. 

 Aperture subvertical, circular, very finely notched on lower and 

 outer margin ; peristome double, thick, the outer reflected on the 

 inner margin. Operculum thin, pale horny, flat in front. 



" Major diara. 0-10", minor diam. 0'09" ; alt. 0-9". 



*^ Habitat. Laisen Trigl. Station, Munipur HilJs. Rare, some 

 eight specimens only having been found. In the thickened rounded 

 form of the peristome this species assimilates to A. conicus, but the 

 minute notches on the inner margin are peculiar and unlike what 

 is seen in any form I am acquainted with. It seems intermediate 

 between the above and A. diagoniiis." 



Altc^us suBiNFLATtrs, u, sp. (Plate CLIV. figs. 8, 8 a.) 



No. 2489 B.M. Type. 



Localittj. Gaziphimi, Lahupa Naga Hills, N.E. Munipur. 



Shell globosely conoid ; sculpture : indistinct subdued costulation 

 on upper whorls, apex distinctly striate spirally, close, regular, 

 rather fine costulation continuous with the sutural tube ; colour 

 with pinkish tinge, red on the apex ; spire rather high ; suture 

 impressed ; whorls 4, tumid and well rounded ; sutural tube long, 

 constriction near its base and distance to aperture short, with a 



