120 LAND AND FRESHWATER 
ture regular, longitudinal, rather coarse strie, broadly ridged ; colour 
pale horny brown, with a pale ochraceous, more or less wide margin 
at the peristome (in the largest specimens a former aperture is still 
shown by a band of colour across the whorl); spire flatly conoid, 
apex obtuse; suture shallow; whorls 6, regularly increasing, the 
last somewhat swollen below ; aperture broadly lunate, suboblique ; 
peristome acute, slightly curving outward above and slightly sinuate 
below ; columellar margin very oblique trom umbilicus, and scarcely 
reflected. 
Largest size: 
Maj. diam, 15:8, min. 13-8; alt. axis 6-8, body-whorl 5:8 mm. 
Smaller size : 
Maj. diam. 13:2, min. 11°8; alt. axis 6-0 mm. 
This shell was very abundant at Asalu, especially in the old 
(jooms) forest-clearings ; it occurred also on the peak of Hengdan, 
one of the highest points in this part of the Burrail range: from 
this locality it is somewhat smaller, paler and whiter in colour, per- 
haps due to the dark forest-home. These measured 12:2 x 10 x 5-2 
mm. and 11-2 x 10-3x 4-8 mm. 
On Japoo Peak, 10,000 feet, another small variety was found, 
but all having the distinctive pale-margined lip. I have a fine ex- 
ample also from Rezameh in the Naga Hills (16-0 x 13-7 x 7-3 mm.) 
(Plate XXIX. fig. 3), which is rather more globose in form. 
Animal. Head and tentacles dark grey, underside of foot with 
two narrow black lines. 
MAacrocuLaMys CASTANEO-LABIATA, G.-A. (Plate XXIX. figs. 1, 
la.) 
Locality. Munipur Hills (Mr. J. Ogle). 
Size: maj. diam. 18-3, min. 15:5; alt. axis 7-0, body-whorl 5-5 mm. 
95 OFZ rt sien)’ Gilde aatestn isos: - 0-22 inch. 
Specimen figured from Asalu (Plate X XIX. fig. 2) :— 
Size: maj. diam. 14-8, min. 13°3; alt. axis 6-0, body-whorl 5:0 mm. 
,, 0°58; , Voss @ gig Oe ; 0-20 inch. 
Specimen from Rezameh, Naga Hills :— 
Size: maj. diam. 16-0, min. 14:2; alt. axis 6-8, body-whorl 5-0 mm. 
b. O-685¢ 3 ODES g5, 80 OsDUE $5 0-20 inch, 
The above specimen, sent me in spirit by Mr. Ogle, from the high 
hills between Cachar and Munipur, was evidently, when living, very 
dark in colour, with perfectly black head and tentacles. The right 
shell-lobe extremely long (Plate XXIX. fig. 4), as well as the left 
shell-lobe, which must be extended over the basal part of the shell; 
the neck-lobes as in M. indica ; the Jaw and odontophore are, how- 
ever, quite different. 
The generative organs (Plate XXIX. fig. 7) may be compared 
with those of M. indica (Plate XVIII. fig. 6). The male organ has 
only a blunt swollen portion near the junction of the vas deferens, 
