93. oi.iouDuN. 245 



16. Oligodon vertebralis. (PLATE XI. fig. 2.) 

 Simotes vertebralis, G'unth. 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 tho 

 internasals longer than that between the praefrontals ; 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 

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

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

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

 small yellow, Mack-edged 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 mi Hi in. ; tail 75. 



Borneo. 



a. <$ (V. 164 ; C. 54). Bandjermassing. L. L. Dillwyn, Esq. [P.]. 



(Type.) 



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



Rabdion waandersii, Bleek. Nat. Tijdschr. Sederl. Ind. xxii. 1860, 

 p. 83. 



cruciatum, Bleek. 1. c. p. 82. 



Oligodon waandersii, Giinth. Ann. $ Mag. N. 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 praefrontals ; frontal longer than its 

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

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

 oculars ; temporals 1+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 posteripr. 

 > in 15 rows. Ventrals 145-151 ; anal divided ; subcaudals 

 -- -L'3. Reddish 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. <S (V. 151 ; C. 28). Boni. Dr. Bleek.-r. (Type of 



Rabdion vxumdersii. ) 



b. Yg. (V. 145 ; C. 22). Boni. Dr. Bleeker. (Tv> 



Rabdion gntOMMM.) 



