200 



each side, partly on the ventrals; shields of head with black 

 spots, the larger light-edged; on the occiput a black, light- 

 edged longitudinal streak. Lower surface yellowish, speckled 

 with brown. Length of head and body 1030 mm.; tail 

 370 mm. 



Habitat: Nias!; Sumatra (Gambir in Deli I, Pagarkaja, 

 Muara Lakitan in Palembang); Java!; Borneo (Sandakan Bay!, 

 Labuan, Kuching, Saribas, Baram, Pankalan ampat, Balik- 

 papan). — Singapore; Penang; Malay Peninsula. 



6. Dipsadomorphus cynodon (Boie). 



Dipsas cynodon^ Boie, Isis, 1827, p. 559. 



Dipsadomorphus cynodon^ Boulenger, Cat. Sn. Ill 1896, p. 78. 



Snout longer than eye; rostral more broad than deep, just 

 visible from above; internasals shorter than the praefrontals; 

 frontal as long as or longer than its distance from the tip of 

 the snout, shorter than the parietals; loreal as long as deep 

 or more long; a praeocular, extending to the upper surface 

 of the head, narrowly separated from the frontal; two post- 

 oculars; temporals 2 + 2, 2 + 3 or 3 + 3; eight to ten upper 

 labials, third to fifth, fourth and fifth, fourth to sixth or fifth 

 to seventh entering the eye; four or five lower labials in contact 

 with the anterior chin-shields ; latter smaller than the posterior; 

 anterior palatine teeth strongly enlarged. Scales in 23 (25) 

 rows, vertebrals strongly enlarged; ventrals 248 — 290; anal 

 entire; subcaudals 114 — 159. 



Yellow or reddish-brown above, with dark brown or black 

 transverse spots or bars, sometimes absent, or blackish above 

 with lighter transverse bars and a series of white spots on 

 the sides; a dark streak on each side of the head behind the 

 eye; labials sometimes with dark vertical lines. Lower surface 

 yellow, uniform or speckled with brown, or entirely black. 

 Total length 2450 mm. 



Habitat: Nias!; Mentawei Islands (Sipora); Sumatra! 

 (Langkat, Deli, Indragiri); Banka!; Borneo (Sandakan, Baram, 

 Kapuas river, Sebruang Valley, Sarawak, Kuching, Busau, 

 Santubong, Rejang river, Balikpapan, Samarinda!); Java (Bata- 

 via, Salatiga!); Bali; Flores!. — Philippines; Malay Peninsula; 

 Singapore; Burma; Assam; Siam. 



