168 XENOPELTID. 
Skull of Xenopeltis unicolor. 
1. Xenopeltis unicolor. 
Xenopeltis unicolor, Reinw. in Bote, Isis, 1827, p. 564; Cantor, Cat. 
Mal. Rept. p. 54 (1847); Dum. § Bibr. vii. p. 28 (1854) ; Giinth. 
t. Brit. Ind. p. 180 (1864) ; Jan, Icon. Gén. p. 57,1. 9, pl. v- 
(1865); Theob. Cat. Rept. Brit. Ind. p. 140 (1876); Bouleng. Faun. 
Ind., Rept. p. 276, fig. (1890). : 
— concolor, Reinw. l. ¢. & 
— leucocephala, Reinw. 1. ¢. 
Tortrix xenopeltis, Schley. Phys. Serp. ii. p. 20, pl. i. figs. 8-10, and — 
Abbild, pl. xxxv. (1844). 
Head much depressed, snout rounded; frontal as long as its 
distance from the rostral; supraocular small, smaller than the 
upper postocular ; a single large praocular or loreal shield; two 
postoculars, upper largest; eight upper labials, first in contact 
with the internasal, fourth and fifth entering the eye; a pair of 
very small chin-shields, in contact with the three anterior lower 
labials. Scales in 15 rows. Ventrals 166-193; anal divided ; 
subcaudals 26-31. Black or brown above, highly iridescent, scales 
with lighter edges, white beneath ; head whitish in the young. 
Total length 1000 millim.; tail 100. 
8. India, Burma, Indo-China, Malay Peninsula and Archipelago, 
- 
