HTPSIRHINA. 161 



175. Hypsirhina bocourti. 



Jan, Arch. Zool. Anat. Pliys. iii, p. 258 (1865) ; Bouleng. Cat. Sn. 

 iii, p. 10 (1896) ; S. Flower, P. Z. S. 1899, p. 676. 



Rostral broader than deep ; a single internasal, about twice as 

 broad as long ; frontal narrow, narrower than the supraocular, 

 at least twice as loug as broad, as long as its distance from the end 

 of the suout, a little shorter thaa the parietals ; loreal a little 

 longer than deep ; one prse- and two postoculars ; temporals 1 + 2 ; 

 8 upper labials, fourth entering the eye ; 4 or 5 lower labials in 

 contact with the anterior chin-shields, which are very large ; 

 posterior chiu-shields very small and separated from each other by 

 scales. Scales in 27 rows. Ventrals 126-135 ; anal divided ; 

 snbcaudals 33-48. Pale olive-brown above, with blackish cross- 

 bands separated by narrow interspaces, or dark olive-brown with 

 dark yellow spots forming longitudinal lines and more or less 

 irregular dark yellow, narrow cross-bars ; upper lip, sides, and 

 belly yellow ; the labial shields black-edged. 



Total length 1120 millini. ; tail 150. 



Siam and Malay Peninsula. This snake was discovered in the 

 Malay Peninsula by Capt. Flower, who obtained an adult female 

 near Alor 8tah, Kedali. While in captivity she gave birtli to 17 

 young, about 220 millim. loug. When only a day or two old 

 they fed freely on small frogs. Specimens were also obtained at 

 .Talor by Messrs. Annandale and Robinson. 



176. Hypsirhina sieboldii. 



Homalopsis sieboldii, Schleg. Phys. Serp. ii, p. 349, pi. xiii, figs. 4 & 

 5 (1837) ; Cantor, Journ. Asiat. Soc. Bengal, xvi, p. 945 (1847). 



Fevania sieboldii, Giinth. Kept. Brit. Ind. p. 284 (18(34). 



Hifpsirhina sieboldii, liouleng. Faun. Brit. Ind., Kept. p. 377 (1890) ; 

 'id. Cat. .Sn. iii, p. 11 (1896). 



Rostral nearly as deep as broad ; two internasals ; frontal 

 broader than the supraocular, as long as its distance from the end 

 of the snout, as long as tlie parietals ; loreal as long as deep or a 

 little deeper than long ; one prteocular, sometimes ^ith a small 

 subocular below it ; two postoculars ; temporals 1 -1- 2 ; 7 or 8 

 upper labials, fourth entering the eye ; 4 lower labials in contact 

 with the anterior chin-shields ; posterior chin-shields very small. 

 Scales in 29-33 rows. Ventrals 147-156; anal divided; sub- 

 caudals 48-56. Whitish or pale brown above, with dark brown 

 black-edged elliptical or rhomboidal transverse spots broader than 

 their interspaces; a series of round spots on each side, alternating 

 with the dorsal spots ; head with three dark brown longitudinal 

 bands, confluent between the eyes ; lower parts white, checkered 

 with black. 



Total length 600 millim. ; tail 120. 



India and Burma. Cantor obtained a single specimen in 

 Province Wellesley. 



M 



