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 'h- ^i'is 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). — I'enang; Singapore; Malay Peninsula; Burma. 



