88 LAND AND l''UKSH WATER 



Size: maj. diam. 3-0; alt. axis 10'4 mm. 



This is mucli stouter and with a much bluntor apes than typical 

 suhhasiuja, with the aperture not so narrow ; 9 specimens were 

 found on Hinriutinoh Peak. North Cachar Hills. 



No. 2026 B.M., apex enlarged (PL CLXIll. fig. 12). 



No. 3557, North Khasi, apex enlarged (Pi. CLXIII. fig. 11). 



Glessula illtjsteis, G.-A. 3076 B.M. type. 



Journ.Asiat. Soc. Bengal, vol. sliv. 2, 1875, p. 3. (Plate i. fig. •").) 



Figured in ' Conchologia Indica,' 1875, pi. cii. fig. 9. 



Nevill, ' Hand-list,' i. 1878, ]>. 170, 7 sp., Heugdan. 



Original deserijAion : — " Shell elongately oval, greenish hornv, 

 finely striated longitudinally; whorls 7, very slightly rounded; 

 suture moderately impressed ; the li|> thickened ; columellar margin 

 slightly curved and strong: apex blunt." 



" Length 0-75; maj. diam. 0-3; length of aperture 0-3 in. 



I]<ih. Henglan Peak, North (!achar Hills, at 6843 feet, in forest, 

 also near Nenglo, at 6000 feet, and in the Lukah Valley, Jainlia 

 Hills, at 1000 feet. 



" This species is an elongate and larger form of Glessuhi crassl- 

 lnhris, Bs., of which G. pjiramis 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 Ijukah Valley is a tumid departure from the type figured 

 (var. tiimida, G-A.). 



" One specimen — alt. 0'75 ; m:ij. diam. 0-38 in. 

 Another „ ,, 0-65 „ 0-35 ,, 



" I look on all these species as proper varieties, and G. crassi- 

 lahru, very abundant in all the grass country of the Khasi Hills, 

 may be taken as the type; a difference in elevation and condition 

 of habitat, from damp dark forest to hot grassy slopes, having 

 produced modifications of form." 



Amended description. 



Glesstjla iiLusTRis, G.-A. Type. Xo. 3076 B.M. (Plate CLX. 

 fig. 12.) 



Locality, Hengdan Peak, North Cachar Hills {Godwin-Austen). 



Shell elongately oval, rather solid, smooth; sculpture: distant, 

 fine irregular striie, 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 flath' convex, rather tumid; 

 a])erture rather narrowly oval, vertical: peristome thickened, but not 

 so strongly as in G. crassihihris ; columellar margin slraightly 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., jiroportion 

 in terms of 100 is 100 : 60. The range on which it was found 

 was covered for miles with magnificent forest. 



