10. TBOPID0N0TT7S. 249 



faintly or feebly keeled. 177-235 ventrals; anal divided; sub- 

 caudals 75-107. Olive-brown above, -with small black spots; 

 frequently two black parallel lines or an elliptic marking on the 

 nape ; a light, black-edged streak on each side of the head, or a 

 black line from eye to gape ; belly yellowish, with or without 

 blackish dots ; frequently a black line or series of elongate blackish 

 spots along each side of the belly ; lower surface of tail frequently 

 mottled with blackish ; throat sometimes black. 



Total length 900 milHm. ; tail 230. 



Himalayas and Khasi HiUs. 



Cashmere, 10,000 feet. T. C. Jerdon, Esq. [C], 



B. H. Hodgson, Esq. 



[P.]. 

 Messrs. v. Sehlagin- 



tweit[0.]. (Type of 



H. sieboldii.) 

 Messrs. v. Schlagin- 



tweit [C.]. 

 Sir J. Hooker [P.]. 



T. 0. Jerdon, Esq. [P.]. 



53. Tropidonotus tigrinus. 



Tropidonotus tigrinus, Boie, lais, 1826, p. 205 ; Schleg, Phys. Saji. 



ii. p. 315 (1837), and Faun. Japan., Rept. p. 85, pi. iv. (1838) ; 



Giinth. Cat. p. 71 (1858), and Rept. Brit. Ind. p. 271 (1864) ; 



Strauch, Schl. Suss. M. p. 176 (1873). 

 Amphiesma tigrinum. Hum. 8( Bibr. vii. ' p. 732 (1854) ; Jan, Arch. 



Zool. Anat. Phys, iii. 1865, p. 233, and Icon. G4n. 29, pi. i. fig. 2 



(1868). 

 Tropidonotus lateralis, Berthold, Getting. Nachr. 1859, p. 180 ; Jan, 



II. cc. p. 220, Icon. 25, pi. v. fig. 1 (1867). 

 ■ orientalis, Crunth. Proc. Zool. 8oc. 1861, p. 391, and Ann. 



Sr Mag. N. H. (3) ix. 1862, p. 59, pi. ii. fig. 3 ; Strauch, Voy. 



PrzewalsU, Rept. p. 48 (1876), 



Eye large. E-ostral broader than deep, just visible from above ; 

 intern asals as long as broad, as long as or a little longer than the 

 preefrontals ; frontal once and one third to once and a half as long 

 as broad, as long as its distance from the end of the snout, shorter 

 than the parietals ; loreal as long as deep or deeper ; two prse- and 

 three or four postoculars ; temporals 1+2 (rarely 2+2); seven 

 upper labials, third and fourth entering the eye ; four or five lower 

 labials in contact with the anterior chin-shields, which are shorter 

 than the posterior. Scales strongly keeled, of .outer row smooth or 

 keeled, in 19 rows. Ventrals 147-166 ; anal divided ; subcaudals 

 55-84. Olive above, with more or less distinct black cross bands 

 or large alternating spots ; a series of light spots may be present on. 

 each side of the back ; a series of black and red spots on each side 

 of the neck ; upper lip yellowish, the sutures between the shields 



