116 LAND AND FRESHWATER 
similar in all important characters, the departure being exhibited 
in the shell and dorsal lobes of the mantle, M. atricolor possessing 
no tongue-like process to the left shell-lobe overlapping the edge 
of the shell, while the left dorsal lobe is divided into two parts, of 
which the posterior is nearly detached from the anterior portion. 
Other forms share these differences, but more species must be 
examined before creating a subgeneric title. 
I have examined two specimens of this species, one from Kopa- 
medza Peak, Naga Hills, which agree perfectly in the form of the teeth. 
MacrocuiaMys Atricozor, var. (Plate XXIV. fig. 3.) 
Locality. Munipur Hills and Burrail range. 
Shell narrowly perforate, subglobosely conoid, solid; colour 
olivaceous, ochaceous below ; spire subconoid, sides flatly convex ; 
suture shallow ; whorls 5, last well rounded, globosely lunate, sub- 
vertical ; columellar margiu very oblique. 
Size: maj. diam, 20°5, min. 18°5; alt. axis 9-0, body-whorl 7-0 mm. 
55 ORS Tg vaste lena 0°36, = 0-28 inch. 
This form from the highest ranges is smaller and more globose 
than others. ; 
MAcRrocHLAMYS ATRICOLOR » var. 
Locality. Kopamedza Peak, Burrail range. 
Shell scarcely perforate ; colour ochraceous with a greenish tinge, 
a band of stronger ochre colour near peristome ; whorls 5, 
Size: maj. diam. 18°0, min. 16:0; alt. axis 7-4, body-whorl 6-0 mm. 
- Ogil,d .3{t OBSER anf 0-29: 55 0-24 inch. 
This is again a smaller form, similar to the last in every respect. 
MAcROCHLAMYS ATRICOLOR, var. Juv. 
Locality. Hengdan Peak. 
This is evidently a young shell of M. atricolor, var., from Kopa- 
medza. Sculpture very smooth and glassy, with irregular, indistinct, 
micro-striation longitudinal ; colour fine olive-brown, with a sienna 
band near the aperture ; whorls 4. 
Size: maj. diam. 10°5, min. 9°2; alt. axis 4-5, body-whorl 3-3 mm, 
Or. -10:365"* +4, PYO-1S, S 0-13 inch. 
” 
MacrocuLamys atricotor, var. (Plate XXIV. fig. 5.) 
Locality. Hatone, Khakhyen Hills, Upper Burmah (Dr. J. An- 
derson). 
Sculpture perfectly glassy on surface, without slightest sign of strize. 
Nevill, in the “ List of Mollusca brought back by Dr. J. Anderson 
from Yunnan and Upper Burmah,” J. A.S8. B. 1877, p. 16, identifies 
this species with M. resplendens, Phil. A comparison of fig. 5 with 
that of fig. 1, Plate XX VI. of this work, from the typical locality 
Mergui, collected by Mr. Theobald, will show how greatly they differ 
