93. OLIGODON. 245 
16. Oligodon vertebralis. (Prare XI. fig. 2.) 
Simotes vertebralis, Giinth. 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 
internasals longer than that between the preefrontals ; frontal longer 
than its distance from the end of the snont, a little shorter than 
the parietals ; a small square loreal; one pre- 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. Scalesin 15 rows. 
Ventrals 154; anal divided; subcaudals 54. Brown above, with 
small yellow, black-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 spetted with brown. 
Total length 345 millim. ; tail 75. 
Borneo. 
@. @ (V. 1645 C.5%). Bandjermassing. L. L. Dillwyn, Esq. [P.}. 
(‘Type.) 
17. Oligodon waandersii. (Prater XI. fig. 3.) 
Rabdion waandersii, Bleek. Nat. Tijdschr. Nederl. Ind. xxii. 1860, 
p. 83. 
cruciatum, Bleek. 1. c. p. 82. 
Oligodon waandersii, Giinth. Ann. § Mag. N. H. (8) 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 preocular; one pre-and two post- 
oculars; temporals 142; 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. 
Seales in 15 rows. Ventrals 145-151; anal divided; subcaudals 
22-28. 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. 
Gd. 6 (Ve 15's; °C. 28). Boni. Dr. Bleeker. (Type of 
Rubdion waandersi.) 
b. Yg. (V. 145; C. 22). Boni. Dr. Bleeker. (Type of 
- Rabdion cruciatum.) 
