93. OLIGODON. 245 



16. Oligodon vertebralis. (Plate XI. fig;. 2.) 

 Simotea vertebralis, Gilnth. Ann. ^ Mag. N. H. (3) xv. 1865, p. 91. 



Nasal divided ; portion of rostral seen from above considerably 

 shorter than its distance from the frontal ; suture between the 

 iiiternasals longer than that between the prajfrontals ; frontal longer 

 than its distance from the end of the snout, a little shorter than 

 the parietals ; a small square loreal ; one pne- and two postoculars ; 

 temporals 1 + 2 ; seven upper labials, third and fourth entering the 

 eye ; four lower labials in contact with the anterior chin-shields, 

 which are nearly twice as large as the posterior. Scales in 15 rows. 

 Ventrals 154; anal divided; subeaudals 54. Brown above, with 

 small yellow, hlack-cdged spots, the largest of which form a verte- 

 bral series ; head yellowish, with two chevron-shaped, brown, 

 black-edged bands, the anterior passing through the eyes, the 

 posterior with the apex on the frontal ; lower parts yellowish, 

 throat spotted with brown. 



Total length 345 millim. ; tail 75. 



Eorneo. 



a. (S (V. 154 ; C. 54). Bandjennassing. L. L. Dillwyn, Esq. [P.]. 



(Type.) " 



1 7. Oligodon waandersii. (Plate XI. fig. 3.) 



Rabdioii waandersii, Bleek. Nat. Tijdsc/u: J^'eclerl. Ind. xxii. 18G0, 

 p. 83. 



cruciatum, Bleek. I. c. p. 82. 



Oligodon waandersii, Gi'mth. Ann. Sf Mng. K. H. (3) xv. 1865, p. 91. 



Nasal undivided ; portion of rostral seen from above shorter than 

 its distance from the frontal ; suture between the internasals as 

 long as that between the prefrontals ; frontal longer than its 

 distance from the end of the snout, as long as the parietals ; no 

 loreal, nasal in contact with praeocular ; one pre- and two post- 

 oculars ; temporals 14-2; six upper labials, third and fourth 

 entering the eye ; three or four lower labials in contact with the 

 anterior chin-shields, which are about twice as long as the posterior. 

 Scales in 15 rows. Ventrals 145-151; anal divided; subcaiidals 

 22-28. Ileddish brown above, with a few widely separated yellow 

 brown-edged small spots, mostly disposed in pairs ; a yellowish 

 collar ; lower parts uniform yellowish. 



Total length 220 millim. ;"'tail 23. 



Boni Id., Celebes. 



a. c? (V. 151 ; C. 28). Boni. Dr. Bleeker. (Type of 



Rahdion xcaandersii. ) 



b. Yg. (V. 145 ; C. 22). Boni. Dr. Bleeker. (Type of 



Rahdion cruciatum.) 



