Herpetological Fauna of Palawan and Balabac. 83 



Eostral twice as broad as deep, just visible from above ; 

 internasals shorter than the praifrontals ; frontal once and 

 two tliirds as long as broad, longer than its distance from the 

 end of the snout, shorter than the parietals ; loreal as deep as 

 long ; one praocular ; two postoculars, both in contact with 

 the parietal ; temporals 2 + 2, the lower anterior wedged in 

 between the sixth and seventh labials ; eight upper labials, 

 third, fourth, and fifth entering the eye ; four lower labials in 

 contact with the anterior chin-shields, which are as long as 

 the posterior. Scales in 17 rows. Ventrals 153-155 ; anal 

 divided; subcaudals — ? (tail mutilated). Black above, with 

 two white streaks commencing on the parietal shields and 

 running along the sixth series of scales and the adjoining 

 halves ; a white cross bar on the forehead, occupying the 

 anterior two thirds of the frontal and supraocular shields ; a 

 series of white spots along the upper lip ; lower parts white, 

 with a black dot or spot at the outer end of each shield. 



Total length 490 millim. 



In the coloration of its upper parts this snake shows a 

 remarkable similarity to Adeniophis bilineatus, which inhabits 

 the same island. 



10. Tropidonotus spilogaster, Boie. 



Palawan. 



Only known from the Philippines. 



11. Tropidonotus chrysargus^ Schleg. 



Palawan, Balabac. 



From the Eastern Himalayas and Southern China to 

 Sumatra, Borneo, and Java. 



12. Coluber erythrurus^ D. & B. 



Palawan. 



Philippines, Sooloo Islands, Celebes. 



13. Coluber oxycephalus, Boie. 



Balabac. 



Eastern Himalayas, Malay Peninsula, Sumatra, Borneo, 

 Philippines, Java, Celebes. 



14. Dendrophis pictus^ Gm . 



Balabac. 



From the Eastern Himalayas and Bengal to the Philip- 

 pines and Moluccas. 



