12 ILLUSTRATIONS 



Plate 35 

 Fig. 1. Doliophis philippinus (Gunther) ; after Giinther; a, head, dorsal 

 view. 



2. Doliophis philippinus (Gunther) ; from a photograph of a young 



specimen from Zamboanga. 



3. Doliophis biliveatus (Peters) ; from a photograph of a Palawan 



specimen. 



Plate 36 



Trimeresurus schidtzei Griffin; from a photograph of a Palawan specimen. 



Plate 37 

 Fig. 1. Trimeresurus philipjpensis Gray; from a photograph of a speci- 

 men in Santo Tomas Museum. 



2. Trimeresurus wagleri alboviridis Taylor; from a photograph of 



the type. 



3. Trimeresunis ivagleri suhannulatus (Gray) ; from a photograph 



of the Mindanao specimen. 



4. Trimeresurus wagleri tvagleri (Boie) ; from a photograph of a 



Palawan specimen. 



TEXT FIGURES 



Fig. 1. Head shields of typical Typhlopidas, Typhlops suluensis Taylor; e, 

 eye; /, frontal; ip, interparietal; ins, intei-nasal suture: lab, 

 labials; n, nasal; nos, nostril; o, ocular; par, parietal; pf, pre- 

 frontal; po, postocular; preo, preocular; ?•, rosti'al. 



2. Typhlops braminus (Daudin) ; after Stejneger; a, head, dorsal 



view; 6, head, lateral view; c, head, ventral view; d, anal region 

 and tail. 



3. Typhlops suluensis Taylor; from the type; a, head, lateral view; 



6, head, dorsal view; c. chin; x 3. 



4. Typhlops cumingii (Gray) ; after Boulenger; a, head, dorsal view; 



6, head, lateral view; c, head, ventral view. 



5. Xenopeltis unicolor Reinwardt; after Boulenger; o, head, dorsal 



view; b, head, lateral view. 



6. Typical Natricinse head; after Griffin; Dendrelaphis tei-yificus 



(Peters), from Griffin's figure of D. cxruleaUis; ch, chin shield; 

 /, fronta^l; H, inferior labial; in, internasal; lb, superior labial; 

 lo, loreal; m, mental, or symphysial; n, nasal; par, parietal; pf, 

 prefrontal; po, preocular; pto, postocular; r, rostral; so, supra- 

 ocular; ta, anterior temporal; tp, posterior temporal; v, ventral. 



7. Nati-ix auricidata (Gunther) ; after Bovilenger; a, head, dorsal view; 



b, head, lateral view. 



8. Matrix dendropliiops negrosensis Taylor; a, head, dorsal view; 6, 



head, lateral view; c, head, ventral view. 



9. Oxijrhabdium, inodestum (Dumeril and Bibron) ; drawing of a Min- 



danao specimen; a, head, dorsal view; b, head, lateral view; c, 

 head, ventral view; X 2. 



10. Oxyrhabdiinn Icporinuni (Giinther); after Boulenger; o, head, 



dorsal view; b, head, lateral view. 



11. Ophites aulicus (Linnseus) ; after Boulenger; a, head, dorsal view; 



b, head, lateral view. 



