133 



frontal fused with loreal and touching the second upper labial; 

 one prae- and one postocular; temporals i -f 2; seven upper 

 labials, third and fourth entering the eye. Scales in 15 rows; 

 ventrals 193; anal divided; subcaudals 37. 



Greyish-brown above, with a yellowish-brown median band, 

 covering the vertebral row of scales and the next half. Lower 

 surface yellowish- white; outer end of the ventrals alternatively 

 light and dark. Length of head and body 210 mm.; tail 31 mm. 

 (After WERNER; not seen by me). 



Habitat: Pulu Weh (Sabang). 



9. Oligodon vertebralis (Gunther). 



Situates vertebralis^ Gunther, Ann. Nat. Hist. (3) XV 1865, p. 91. 

 Oligodon vertebralis, Boulenger, Cat. Sn. II 1894, p. 245, pi. XI, fig. 2. 



Rostral visible from above; nasal divided; suture between 

 the internasals longer than that between the praefrontals; frontal 

 longer than its distance from the tip of the snout, shorter 

 than the parietals; loreal small, square; one prae- and two 

 postoculars; temporals i+2; seven upper labials, third and 

 fourth entering the eye; four lower labials in contact with the 

 anterior chin-shields; latter about twice as large as the posterior. 

 Scales in 15 rows; ventrals 154; anal divided; subcaudals 54. 



Brown above, with small yellow, black-edged spots, largest 

 on the vertebral line; head yellowish, with two brown, black- 

 edged bands, the anterior passing through the eyes; the 

 posterior across the frontal. Lower surface yellowish; throat 

 brown-spotted. Length of head and body 270 mm.; tail 75 mm. 



Type-specimen examined in the British Museum. 



Habitat: Borneo (Kina Balu!, Bandjermassin!). 



10. Oligodon waandersi (Bleeker). 



Rhabdion ivaandersi, Bleeker, Nat. Tijdschr. Nederl. Ind. XXII 1860, p. 83. 

 Oligodon waandersii, Boulenger, Cat. Sn. II 1894, p. 245, pi. XI, fig. 3; Proc. 



Zool. Soc. 1897, p. 221. 

 Oligodon taeniurus, F. Miiller, Verb. Ges. Basel X 1894, p. 826. 



Rostral visible from above; nasal entire or partly divided; 

 suture between the internasals as long as or longer than that 

 between the praefrontals; frontal longer than its distance from 

 the tip of the snout, as long as or shorter than the parietals; 

 loreal small or absent; one prae- and two postoculars; tem- 



