88 LAND AND FRESHWATDR 
Size: maj. diam. 3:6; alt. axis 10°-4 mm. 
This is much stouter and with a much blunter apex than typical 
subhastula, with the aperture not so narrow; 9 specimens were 
found on Hinriutinoh Peak, North Cachar Hills. 
No. 2026 B.M., apex enlarged (P]. CLXIII. fig. 12). 
No. 3557, North Khasi, apex enlarged (Pl. CLXIII. fig. 11). 
GressuLa 1nLustRIs, G.-A. 3076 B.M. type. 
Journ. Asiat. Soc. Bengal, vol. xliv. 2,1875, p.3. (Plate i. fig. 5.) 
Figured in ‘ Conchologia Indica,’ 1875, pl. cii. fig. 9. 
Nevill, ‘ Hand-list,’ i. 1878, p. 170, 7 sp., Hengdan. 
Original description :—“ Shell elongately oval, greenish horny, 
finely striated longitudinally; whorls 7, very slightly rounded ; 
suture moderately impressed; the lip thickened; columellar margin 
slightly curved and strong; apex blunt.” 
** Length 0°75; maj. diam. 0°3; length of aperture 0°3 in. 
Hab. Henglan Peak, North Cachar Hills, at 6843 feet, in forest, 
also near Nenglo, at 6000 feet, and in the Lukah Valley, Jaintia 
Hills, at 1000 feet. 
“This species is an elongate and larger form of Glessula crasst- 
labris, Bs., of which G. pyramis is a closer variety; but its much 
more elongate form and stronger striation make it a good connect- 
ing species with G'. butleri, described further on. The form from 
the Lukah Valley is a tumid departure from the type figured 
(var. tumida, G-A.). 
“One specimen—alt. 0°75; maj. diam. 0°38 in. 
Another _,, 5) 060 Es 0:35 5; 
“T look on all these species as proper varieties, and G. crasst- 
labris, very abundant in ell the grass country of the Khasi Hills, 
may be taken as the type; a difference in elevation and condition 
ot habitat, from damp dark forest to hot grassy siopes, having 
produced modifications of form.” 
Amended description. 
GrussuLa 11Lustris, G.-A. Type. No. 3076 B.M. (Plate CLX. 
fie. 12.) 
Locality. Hengdan Peak, North Cachar Hills (Godwin-Austen). 
Shell elongately oval, rather solid, smooth; sculpture: distant, 
fine irregular strie, fine on the apical whorls; colour deep olivaceous, 
with an ochre tint ; spire high, sides flatly convex, apex blunt; suture 
moderately impressed; whorls 7, very flatly convex, rather tumid ; 
aperture rather narrowly oval, vertical; peristome thickened, but not 
so strongly as in G. crasstlubris ; columellar margin straightly curved. 
Size: maj. diam. 8:0; length 19:2 mm. ; 
The last whorl up to the suture is ample; it measures from the 
base of the columella in front to the suture 11°50 mm., proportion 
in terms of 100 is 100: 60. The range on which it was found 
was covered for miles with magnificent forest. 
