Herpetological Fauna of Palawan and Balabac. 85 



Frontal as long as its distance from the rostral, consider- 

 ably shorter than the parietals ; one pras- and two postoculars ; 

 temporals 1 + 2 ; six upper labials, third and fourth entering 

 the eye ; chin-shields two pairs, subequal, the anterior in 

 contact with four labials. Scales in 13 rows. Ventrals 

 245 ( $ ) and 268 ( ? ) ; anal entire ; subcaudals 29 ( ^ ) and 

 25 ( ? ) . Black above, with two white streaks along the 

 body, commencing on the parietal shields, and running along 

 the fourth and fifth series of scales ; outer row of scales 

 white, with a black longitudinal streak or a series of black 

 dots ; upper lip and a blotch across the prefrontal shields 

 white; belly with black crossbars, each involving two or 

 three ventral shields and separated from each other by two 

 to four white shields ; tail orange or pink, with two or three 

 black blotches or rings. 



Total length 710 millim., tail 45. 



22. Amblycephalus boa, Boie. 



Palawan, Balabac. 



Malay Peninsula, Borneo, Philippines, Java, Moluccas. 



23. Trimeresurus Jbrmosus, Schleg. 

 Palawan. 

 Sumatra, Borneo. 



24. Trimeresurus subannulahis. Gray. 



Palawan. 



Sumatra, Borneo, Philippines, Celebes. 



BATKACHIA. 



ECAUDATA. 

 1. Oxyglossus l&vt's, Gthr. 

 Balabac. 

 Burma, Malay Peninsula, Sumatra, Philippines. 



2. Rana macrodon, D. & B. 



Palawan, Balabac. 



Burma, Malay Peninsula, Sumatra, Borneo, Philippines, 

 Java. 



3. Rana palavanensis, sp. n. 



Palawan. Three female specimens. 



Allied to R. modesta, Blgr., Dort'os, Blgr., Limborgii, 

 W. Sclater, and Hascheana, Stol. Vomerine teeth in two 



