1913.] NATURAL SCIENCES OF PHILADELPHIA. 217 



third longer than broad, distance from the rostral less than one-half 

 its width, a trifle shorter than the parietals. Nasal divided into 

 two equal portions. Loreal nearly square, not quite as deep as the 

 diameter of the pupil. Preocular 1, postoculars 2. Temporals 

 anterior 1, posterior 1. Supralabials 7, the third and fourth entering 

 the eye, the sixth the deepest, and touching the posterior temporal. 

 Infralabials 8, the first pair in contact behind the mental. Anterior 

 geneials nearly twice as large as the posterior, in contact with four 

 labials. 



Coloration. — Body above brown, with a vertebral series of ten 

 round or oblong, yellow, black-edged spots; tail with two; numerous 

 yellow dots having a tendency to be arranged in two to three trans- 

 verse rows between each dorsal spot; the anterior chevron mark 

 interrupted over the frontal; on the parietals behind the posterior 

 chevron a small dot. Under surface of head white, throat with a 

 break in the posterior chevron; body beneath yellow. 



Anatomy. — Pupil round. Heart apex at the level of the 34th 

 gastrostege, in terms of body vertebrae this is 24% down the spinal 

 column. Anterior tip of the liver at the 43d gastrostege. 



Museo de Santa Toma, Manila. Palawan, Philippine Islands. 

 Male; total length 308, tail 54 mm. 



Squamation. — Scales in 15 continuous rows. Gastrosteges 136. 

 Anal divided. Urosteges 37 pairs and the terminal pointed scale. 

 Internasal suture as long as the prefrontal suture. Frontal as long 

 as the parietals. Preocular 1, postoculars 2. Temporals anterior 1, 

 posterior 2. Supralabials 7 on the left side and 6 on the right, the 

 fifth and sixth fused, the third and fourth entering the eye. 



Coloration. — Body with ten, tail with two, yellow black-edged 

 dorsal spots. 



Museo de Santa Toma, Manila. Palawan, Philippine Islands. 

 Male; total length 340, tail 64 mm. 



Squamation. — Scales in 15 continuous rows. Gastrosteges 143. 

 Anal divided. Urosteges 41 pairs, and the terminal pointed scale. 

 Preocular 1, postoculars 2. Temporals anterior 1, posterior 2. 



Coloration. — Body with ten, tail with three, yellow black-edged 

 vertebral spots. 



Habitat. — Heretofore known only by the type which came from 

 Banjermasin in the extreme south of Borneo. 

 Oligodon schadenbergi Boettger. 



No. 15,281 Cal. Ac. Sci. Mindanao, Philippine Islands. Female; 

 total length 226, tail 39 mm. 



