OLIGODON 149 



rises from fourth ventral, passes across angle of jaw, and ends 

 in a point on frontal; behind this is a similar chevron-shaped 

 band of yellowish brown reaching frontal; a few irregular 

 blotches on labials and throat ; belly yellowish. 



Measurements of Oligodon notospihis Gunther. 



mm. 



Total length 34,5 



Snout to vent 292 



Tail ■ 5.3 



Width of head 10 



Length of head 13 



Remarks. — This species has been known only from the type 

 since its discovery about 1870 in Mindanao. The specimen here 

 described agrees remarkably well with the type description. 

 In coloration and markings it is identical with the description 

 and the plate. The variation in the ventral count is only four; 

 the subcaudal count is identical. In the specimen at hand the 

 subcaudals are all divided, and there are four instead of three 

 lower labials touching the first pair of chin shields. 



OLIGODON IWAHIGENSIS Griffin 



Plate 18, fig. 2 



Oligodon iwahigensis Griffin, Philip. Journ. Sci. § A 4 (1909) 598; 

 § D 6 (1911) 260. 



Description of species. — (From the type specimen, No. R 1(5, 

 Bureau of Science collection ; collected at Iwahig, Palawan, by 

 W. Schultze.) Maxillary teeth 6, 2 teeth on each palatine; 

 head not or scarcely distinct from neck, much narrowed on 

 snout ; rostral about as high a's wide, well visible from above,, 

 pointed behind ; sutures with anterior nasal largest, the portion 

 of rostral seen from above shorter than its distance from 

 snout; internasals about half as large as prefrontals, their 

 shortest sides joining, the suture between them equal or nearly 

 equal to that between prefrontals; latter wider than deep, the 

 suture with frontal largest, that with loreal smallest; frontal 

 but little longer than wide, almost a regular hexagon, more 

 than twice as wide as supraoculars and longer, its length 

 greater than its distance from end of snout; parietals longer 

 than frontal, in contact with 1 postocular, much narrowed 

 behind; nostril between 2 nasals, the anterior largest, both 

 touching first labial ; loreal small, little more than half the size 

 of preocular; 1 preocular, higher than wide; 2 postoculars, the 



upper largest; temporals 1 -h > the anterior in contact with 



Li 



the 2 postoculars ; 7 upper labials, third and fourth entering 



