346 



Total length 2| feet ; tail 7'5 inches. 



Hob. Eastern Himalayas (3000-6000 feet), Assam, Burma, 

 Southern China, the Malay Peninsula, Java, Borneo, and Sumatra. 

 Appears to be everywhere chiefly a mountain form. 



429. Tropidonotus nigrocinctns. 



Tropidonotus nigrocinctns, Blyth, J. A. S. B. xxiv, 1856, p. 717 ; 

 Gimtlt. Kept. B. I. p. 269; theob. Cat. p. 175. 



Eye large, its diameter exceeding its distance from the nostril ; 

 rostral just visible from above ; suture between the intern asals a 

 little shorter than that between the praafrontals ; frontal a little 

 longer than its distance from the end of the snout and a little 

 shorter than the parietals ; loreal slightly longer than deep ; one 

 or two praeoculars ; three postoculars; temporals 1 + 2; upper 

 labials 9, fourth, fifth, and sixth entering the eye; 5 lower labials 

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

 than the posterior. Scales in 19 rows, strongly keeled, the outer 

 row distinctly keeled. Ventrals 155-1 60; anal divided; subcaudals 

 81-89. Olive-grey above, green towards the head, with narrow 

 transverse black streaks ; an oblique black streak below the eye, 

 another behind the eye, and a third on each side of the neck ; lower 

 parts yellowish, dotted with brown posteriorly. 



Total length 26 inches ; tail 7. 



Hob. Pegu and Tenasserim. 



430. Tropidonotus ceylonensis. 



Tropidonotus chrygargus, var. ceylonensis, Giinth. Cat. Col. Sn. p. 71. 

 Tropidonotus ceylonensis, Giinth. Rept. B. I. p. 268, pi. xxii, fig. G ; 

 Theob. Cat. p. 178. 



Eye rather large, its diameter a little exceeding its distance from 

 the nostril ; rostral just visible from above ; suture between the 

 internasals a little shorter than that between the praefrontals ; 

 frontal longer than its distance from the end of the snout, as long 

 as the parietals ; loreal as deep as long ; two praeoculars ; three 

 postoculars ; temporals 2 + 2 or 2 + 3 ; upper labials 8 normally, 

 fourth and fifth entering the eye ; 4 lower labials in contact with 

 the anterior chin-shields, which are shorter than the posterior. 

 Scales in 19 rows, strongly keeled, the outer row smooth or faintly 

 keeled. Ventrals 133-141 ; anal divided ; subcaudals 48-54. 

 Olive-brown above, with black cross bands and a series of large 

 yellow black-edged ocelli along each side of the back ; these mark- 

 ings less distinct in the adult ; lips white ; a black band on each 

 side of the head behind the eye ; a black band on each side of the 

 nape, converging towards its fellow posteriorly, the space between 

 them yellow in the young ; belly uniform yellowish, or powdered 

 with brown posteriorly. 



Total length 18 inches ; tail 3*5. 



Hob. Ceylon. 



