94 



as long as its distance from the tip of the snout, shorter than 

 the parietals; loreal about as long as deep; one praeocular, a 

 large subocular below it, wedged in between the third and 

 fourth upper labials; two postoculars, with a large subocular 

 below, between the eye and the fifth and sixth labials; some- 

 times a third subocular, separating the eye from the labials; 

 temporals 2 + 2; eight upper labials, fourth entering the eye 

 or separated from it; four or five lower labials in contact with 

 the anterior chin-shields; latter as long as the posterior. Scales 



Fig. 40. Xenelaphis hexagonotus (Cant.) X % Side view of head. 



in 17 rows, the vertebral row a little enlarged; ventrals 

 185 198; anal divided; subcaudals 140 179. 



Brown above, with black transverse bands on the anterior 

 part of the body, becoming indistinct with age, so that the 

 outer ends of the bands alone are visible; scales of the posterior 

 part of the body with a black spot and black basal part. 

 Lower surface yellowish; each ventral and subcaudal with a 

 black spot on the outer end; subcaudals black-edged. Length 

 of head and body 1050 mm.; tail 600 mm. 



Habitat: Sumatra (Stabat near Bindjey, Medan!, Serdang!, 

 Indragiri, Taluk!, Bunga Maas); Banka!; Borneo (Baram, 

 Sebruang Valley, Rejang river, Lundu, Kuching); Java (Bui- 

 tenzorg). Penang; Singapore; Malay Peninsula; Burma. 



