﻿1874.] from Afisam and tlicNafja IIUU. 149 



Major diam. 0' 10," minor diam. O'OO/' alt. 09/' sutural tube 0*75/' 

 Habitat. — Laisen Trigl. station, Munipur Hills ; rare, some eiglit S2:)eci- 



mens 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. diagonius. 



ALYCiEUS MULTIEUGOSUS, n. sp., PI. Ill, Fig. 7. 



Shell depressed ly sub-turbinate, rather openly umbilicated, translucent, 

 pale corneous, smooth glistening surface, very minute ribbing near sutural 

 tube. Spire flatly conoid ; whorls 4, flat, the last very little swollen, con- 

 stricted and enlarged again towards the aperture into a zigzag- shaped rido-e 

 or what might be described as three parallel and connected ridges. Sutural 

 tube short. Aperture oblique, circular ; peristome double, both continuous 

 and the outer slightly reflected. Operculum ? 



Major diam. 0-12," minor diam. 0-08," alt. O'OS/' sutural tube 0.037." 



Hahitat. — Hills at head of the Lanier Eiver, Naga Hills, about 5 — 

 6,000 feet, rare. 



A close ally of A. KJiasiacus, mihi, but a much smaller shell ; the 

 many ridged area near constriction, however, is a wide departure from that 

 form. A large var. of A. KJiasiacus occurred at Gaziphima and, as an in- 

 stance of local variability in this genus, a few of the specimens have a slight 

 tendency to a fimbriated peristome as in A. crenatus, mihi. 



ALTCiEUS (DiOETX) GEAPHICUS, W. Blf., var. MINOE, PI. Ill, Fig. 8. 



This shell is much smaller than graphicus from the Khasi Hills, &c., 

 and is longer in spire with close costulation throughout. 



The differences though persistent in Naga Hill specimens are not sufli- 

 cient to make the form distinct. 



Major diam. O'lO," alt. 0-12.'' 



ALTCiEUS BuETii, n. sp., Plate III, Fig. 9. 



Shell turbinate, openly umbilicated, thick, pale ochreous ; shallow but 

 well marked ribbing on swell of last whorl and finely costulated on the apex. 

 Spire conoid, apex sharp, suture well impressed. Whorls 5, the last moder- 

 ately swollen, constriction very slight, short, and smooth up to the peristome, 

 sutural tube moderate, rather large at base. Aperture oblique, laterally oval, 

 angular on inner upper margin, with 4 well marked notches on the outer 

 margin ; peristome thickened, double, well reflected, inner lip continuous. 



Major diam. 0-22," minor diam. 0-19/' alt. 15." 



