MOLLUSCA OF INDIA. 61 
I have not hitherto seen any elongate Gilessula (Ltishetia) of the 
baculina type trom so low an elevation as Gowhathi (only about 
3U0 feet) and so far from the base of the eastern Himalaya, all have 
come from quite high habitats of 83-5000 feet. This is not surprising 
when we consider that from Gowhatii westward up to the Garo 
Hills, an area of 135 miles by 32, or over 4100 sq. miles, no land- 
mollusca have been collected, until the high ground in the Khasi 
Hills is reached, where G. subbaculina is abundant. Eastward it 
is the same up to the Mikir Hills, a tract mostly of hill-country, 
64 miles long by 32 broad or some 2000 sq. miles. North of the 
Brahmaputra, for the distance of 190 miles, another 6000 sq. 
miles, no collecting has been made. I trust Sunder Lall will 
before long be given the opportunity of collecting ali along the line 
of the Assam railway and visit places contiguous to it, particularly 
the isolated low granite hills north of the Brahmaputra River, 
GLESSULA BURRAILENSIS, G.-A., var. MAXWELLI, G.-A. 
Locality. Somra Tracts, Somra Khulen Post, Upper Burma, 
8.4.19. About L. 25° 20' N., L. 90° 45' E. No. 3742 B.M. 
Shell elongate cylindro-conoid, turreted, solid, rather shining ; 
sculpture : on the protoconch ribbing, approaching fine costulation, 
merges into finer, more irregular, and curvilinear on the succeeding 
whorls ; just below the suture this sculpture is stronger, giving the 
appearance of crenulation ; colour a rich ochre, some are chestnut ; 
spire long, gradually increasing, sides with slight convexity, apex 
blunt; suture moderately impressed; whorls 103, flatly convex, 
the last the largest; aperture oval, rather narrow for size, milky 
white within; _peristome outer margin well thickened, white ; 
columella strong, concave, truncate. 
Size: maj. diam. 10°0 ; alt. axis 32°75 mm. 
The longest and } 9-25 « Sota ee 
most attenuate i is A Nien : 
This very interesting shell was collected by Captain L. R. Maw- 
son, Ist Lushai Hills Battalion, Assam Rifles, and is a more 
attenuate form of G. burrailensis from the Naga Hills, this easterly 
loeality extending the range to the hill-slopes of the Kyengdwen 
Valley. 
