﻿14.8 Godwin- Austen — New sjpecies of AhjccBince [No, eS, 



dcratcly swollen, then sharply constricted and again enlarged by a ridge, 

 from which emanate four minor longitudinal ridges on the expanded portion 

 of the peristome. Constriction narrow, close to sutural tube, this is moder- 

 ate in length and about equal to the distance of its base to lip. Aperture 

 much expanded, oblique, round, angulate above, waved on outer margin and 

 channelled within ; the outer lip of peristome thin, slightly recurved on the 

 inner lower margin. Operculum black, multi-spirial, concave. 



Major diam. 0'20,'' minor diam. 0-16," alt. 0*13," 



Hahitat. — Phunggum, a Naga village at head of the Lanier valley, at 

 5,000 feet, where it is abundant. 



It is near the crispatus form described in my last paper. Its larger 

 globose form, long sutural tube, and more open umbilicus, mark it as 

 distinct. 



Alyc^tjs bicrenatus, n. sp., PL III, Fig. 5. 



Shell moderately umbilicated, sub-turbinate, pale corneous or nearly 

 white, fine close ribbing on swell of last whorl, extending to behind the ter- 

 mination of the sutural tube and thence to apex very finely and evenly cos- 

 tulated. Spire depressedly conoid, suture impressed, apex blunt. Whorls 4, 

 the last moderately swollen, constriction rather wide, followed by a single 

 well defined high ridge close behind the expanded portion of the aperture 

 where it is defined by a sharp narrow costulate rib. The expanded portion 

 anterior to this is longitudinally waved on surface, produced by two deep 

 triangular grooves situated well within the aperture and on outer margin. 

 Sutural tube short. Aperture oblique ; peristome round, slightly angular 

 above. Operculum, pale horny, concave. 



Major diam. 0-14,'' minor diam. O'lO," alt. 0-09," sutural tube 0-42." 



Habitat. — Kopamedza Peak Naga Hill, 8 — 9,000 feet, in forest. 



This shell belongs to the same group as the last and is very close to A, 

 crenatus, mihi (vide plate III, fig. 5, J. A. S. B., Pt. II, 1871), but the 

 longer sutural tube and the strongly crenated peristome of crenatus mark the 

 distinction. 



ALTCiEUS SEEEATUS, n. sp., PI. Ill, Fig. 6. 

 Shell very closely umbilicated, turbinate, rather thin, pale corneous or 

 dark brown, finely costulated on tumid portion of 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 

 sub-vertical, circular, very finely notched on lower and outer margin ; peris- 

 tome double, thick, the outer reflected on the inner margin. Operculum 

 thin, pale horny, flat in front. 



