spots or a stripe, the posterior ventrals sometimes brown in 

 the middle, yellow on the sides. Length of head and body 

 247 mm.; tail 58 mm. 



Type-specimens examined in the British Museum. 



Habitat: Timor Laut!; Dammar Island. 



5. Simotes signatus Gthr. 



Simotes signatus^ Giinther, Rept. Brit. Ind. 1864, p. 215, pi. XX, fig. F. 

 Simotes signatus^ Boulenger, Cat. Sn. II 1894, p. 226. 



Nasal divided; rostral visible from above; suture between 

 the internasals as long as or shorter than that between the 

 praefrontals ; frontal longer than its distance from the tip of 

 the snout, as long as the parietals; loreal small, square; one 

 prae- and one postocular; temporals i + 2; seven upper labials, 

 third and fourth entering the eye; three or four lower labials 

 in contact with the anterior chin-shields; latter a little longer 

 than the posterior. Scales in 17 rows; ventrals 141 — 157; anal 

 entire; subcaudals 47 — -59. 



Dark brown above, with rhomboidal transverse yellow spots 

 or bands; head with symmetrical dark brown markings and 

 yellow interspaces. Lower surface yellow; a lateral series of 

 brown spots. Length of head and body 390 mm.; tail 130 mm. 



Habitat: Sumatra (Labuan, Medan!, Serbadjadi!, Langkat, 

 Indragiri); Java. — Singapore. 



6. Simotes subcarinatus Gthr. 



Simotes subcarinatus^ Giinther, Proc. Zool. Soc. 1872, p. 595, pi. XXXIV, fig. B. 

 Simotes subcarinatus^ Boulenger, Cat. Sn. II 1894, p. 226. 



Nasal divided; rostral visible from above; suture between 

 the internasals shorter than that between the praefrontals ; 

 frontal longer than its distance from the tip of the snout, as 

 long as the parietals; loreal small, square; one prae- and one 

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

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

 anterior chin-shields ; latter almost twice as large as the poste- 

 rior. Scales in 17 rows, feebly keeled; ventrals 155 — 166; anal 

 entire; subcaudals 50—54. 



Dark brown or olive above, with yellowish or pinkish, black- 

 edged, transverse bands, the anterior chevron-chaped; head 

 yellowish, with symmetrical brown or crimson markings. Lower 



