22 SECOND YARKAND MISSION. 



but not quite touching. Nostrils rather in front. Prseocular and ocular about equal, neither 

 of them as large as the nasal, anterior margin of prseocular very convex, that of ocular straight 

 and vertical, except on the top of the head, where it is curved back. Praefrontal, postfrontal, 

 supraocular, and interparietal scarcely exceeding the back scales in size ; the parietals are con- 

 siderably broader. Upper labials four, the first very small, in contact with the rostral and 

 fronto-nasal ; the second below the fronto-nasal and nasal, and just reaching the prseocular ; 

 the third between the prgeocular and ocular, but not rising much on the side of the head ; 

 the fourth, which is considerably the largest, beneath the ocular and extending some distance 

 back beyond it. Eyes quite invisible. 



This differs from the description of T. porrectus in being rather less slender, in having 

 fewer longitudinal rows of scales, and only eight instead of eleven to twelve rows round 

 the tail, and, to judge by Dr. Stolizcka's figure, in the smaller size of the f rentals, inter- 

 parietals, and supraoculars. 



Family 

 17. COMPSOSOMA HODGSONI. 



Giinther: Kept. Brit. Ind., p. 246 j Stoliczka: Jour. As. Soc. Bengal, 1870, xxxix, Ft. 2, p. 189. 

 1, Kashmir. 



This specimen, which is young, being only 24'5 inches long, has the scales absolutely 

 smooth throughout, and a second praeocular, formed of a detached portion of the supra- 

 labial series, between the third and fourth labials. A similar specimen has been described 

 by Stoliczka, loc. cit., from the North- Western Himalayas. Ventrals 227, subcaudals in 79 

 pairs. 



18. PTYAS MUCOSUS. 



1, 2, Kashmir. 



These specimens do not differ from the ordinary Indian form. Kashmir must, I should 

 think, be at the extremity of this snake's range to the north-west. 



19. ZAMENIS RAVERGIEBI. 



Coluber ravergieri, Menetries : Cat. Rais., p. 69 (1832). 



Zamenis caudalineatus, Gtinther: Cat. Col. Snakes, Brit. Mus., p. 104 (1858); Jan. Icon. Ophid. 



livr. 23, PL iii. 

 Zamenis ravergieri, Strauch : Schlangen des Russ. Reichs, Mem. Acad. Sci. St. Pet., xxi, No. 4, p. 127 



(1873) ; W. Blanford: Eastern Persia, ii, p. 417 (1875). 

 Z. fedtschenkoi, Strauch: Schlangen des Russ. Reichs., p. 135, PI. iv (1873). 



1, Yarkand ; 2, 3, Yangihissar. 



The spots on the head and back are larger than in Persian specimens, and somewhat 

 resemble those of Z. diadema, whilst the dark band along the upper part of the tail has a 



