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Show 1893.] SPECIES OF THE LAND-MOLLUSCAN GENUS ALYC.EUS. 593 examples of the same shell, which have led me to recompare the two forms. 1. ALYCYEUS BI-RUGOSUS, n. sp. Locality. Khasi Hills and Munipur (in coll. Godwin-Austen). Shell globosely turbinate, rather openly umbilicated ; sculpture smooth on upper whorls, regular close ribbing on the swell of the last; colour pale ochraceous or ruddy brown; spire conoid, rounded at apex; suture impressed; whorls 4, the last not swollen, contracted in front of the rather short sutural tube, then enlarging again into two parallel ridges, which adjoin the aperture ; aperture ovate, angular above and below, rounded on the inner margin. Operculum pale in colour, smooth in front. Size : maj. diam. 3-0; alt. axis 1*25 m m . The specimens were found in the Khasi Hills, but the exact locality is not recorded. One specimen I obtained south of the Barak River on the road from the Naga Hills to Munipur. Although this shell, in size and most of its characters, is like A. multirugosus, G.-A., of the Naga Hills, it differs materially, more especially in the form of the aperture and in the ridges on the expanded portion of the last whorl. 2. ALYCEEUS SUBCULMEN, n. sp. Locality. Naga Hills (W. Boherty, in coll. Aldrich). Shell globosely turbinate, solid, closely perforate; sculpture, smooth on all the upper whorls and polished, close-set ribbing on the swell of the last whorl; colour dark ochraceous ; spire conical, apex rounded, blunt; suture impressed ; whorls 4, round, the last swollen, contracted at base of a short sutural tube, then rising into a depressed ridge, thence expanding and spreading to the aperture; aperture circular, subvertical; peristome double, much thickened, simple, continuous. Size: maj. diam. 2'75; alt. axis 1*5 m m . This is a very distinct species; in the solid rounded peristome it approaches A. conicus from Jaintia and A. vestitis from the Arakan Hills. 3. ALYCEEUS (DIORYX) GRANUM, n. sp. Locality. Margarita, foot of Eastern Naga Hills (W. Boherty, in coll. Aldrich). Shell perforate, globose; sculpture fine regular ribbing, closely arranged and extending to the peristome ; colour ruddy ochre; spire subconical; suture well impressed ; whorls 4, rounded, a slight constriction in front of the short sutural tube ; aperture suboblique, circular ; peristome double, the outer reflected slightly. Size: maj. diam. 2-25 ; alt. axis 2-0 m m . This species is only half the size of its nearest ally, a variety of |