84 Notes on Tangong lake district of LadaH. [No. 2, 



Fig. 3, 3a, 35, D. a. sp— Nongsingriang. 



4, 4«, 45, Z>. oligoplcuris,W. Blanf. n. sp.—Teria Gliat. 



5, 5a, animal of D. folliculus, Pfr. Deyra Doon variety. 

 PL IV. Burmese species. 



Fig. 1, la, D. sperata, W. Blanford, Arakan Hills, west of 

 Prome. 



2, 2a, B. Puppensis, W. Blanford, Puppa Hill, Upper 



Burma. 



3, 3a, D. exilis, W. Blanford, Mya Leit Doung, near 



Ava. 



4, 4a, D. wo^«, W. Blanford, Akoutoung, Pegu. 

 (For descriptions of new species, see last paper.) 



Notes on the Pangong lake district of Ladakh, from journal made in 

 1863.-% Captain H. H. Godwin-Austen, F. R. G. S., Topogra- 

 phical Surveyor. 



[Received 16th June, 1866.] 



To the north of the Indus, from its junction with the Bras river, 

 lies a high range of mountains which separate the Indus drainage from 

 that of the Shayok or Nubra river. The axis and great mass of this 

 range is granitic ; on the west this extends to within a very short 

 distance of the river, while at Pituk below Leh, the granite hill on 

 which that large and well-known monastery stands abuts on the 

 Indus itself, and thence towards the east for a considerable distance 

 it holds the same position. The great mass of coarse sandstones, 

 red clays, grits, and conglomerates seen on the right bank of the 

 Indus, west of Pituk, are now seen on the left or south bank, thence 

 to the east in the direction of Stock and Himis. On the above 

 granite range are several passes leading into the Shayok valley, all 

 of great elevation, and on the direct road from Leh to the Pangong 

 lake are two, viz., the " Chang La," and the " Kay La," both 

 high, being respectively 17,470 and 18,250 feet above the level of 

 the sea. 



The ascent to the first is gradual from the village of Tagar in 

 the Ghimray valley, which there divides into two large ravines, 



