LIST OF SNAKES FROM THE ISLAND OF FOLILLO. 



213 



of the head is very dark dull bro\vii, almost black,^.dorned by a reticulate 

 pattern of tine white lines. The centers and lower ed^esof the upper 

 labial scales are" white^ their adjoining edges brown. All the scales are 

 extremely smooth and glossy. The colors did not change upon preserva- 

 tion of the specimen in formalin. 



This snake seems to be very rare. The natives to whom it was shown 

 had never seen it before, and none of them Icnew a native name for it. 



List of speoimens of Haplonodon philippinensis sp. nov. 





























„. 















^ 







•3 



»• 



•3 





■S 



Museum. 



h 



Sex. 



Locality. 



When 

 collected. 



Collector. 



s 



1 





3 



8 



s 



.2 



ja 





a 



3 











•3 





cs 



.o 



a 



i 



1 



s 





la 











CQ 





< 



CO 



n 



CO 



Eh 



J 



























mm. 



mm. 



Bureau of 



883 



Male 



Polillo- 



Oct. 1909- 



C. Cano- 



17 



203 



1 



95+ 



2+2 



9 



0.800 



0.196 



Science. 











nizado. 



















This species combines characters of both Ophites (Lycodon) and Di- 

 nodon, and might easily represent an intermediate genus. It differs from 

 Ophites in tlie lesser inward' curvature of the anterior end of the maxilla, 

 the greater number of anterior maxillary teeth, the small number of 

 middle maxillary teeth, abruptly succeeded by three gi-eatly enlarged 

 posterior teeth, and by the gradual and lesser enlargement of the four 

 anterior mandibular teeth, which are followed by small teeth without an 

 interspace. It differs from Dinodon in having only a single interspace 

 between the maxillary teeth, that between the last enlarged anterior 

 tooth and the first small middle tooth. The tail is also longer in pro- 

 portion to the body than in any species of Dinodon. It differs from 

 both genera in the absence of apical pits. 



Elaphe erythrura (Dumeril & Bibron), No. 804. 



Dendrophis pictus (Gmelin), Nos. 773, 774, 775, 776, 790, 791, 792. 



These snakes are colored a u.niform dark brown above. The lateral 

 rows of scales and the ventral surface are a uniform light blue. A 

 narrow black line runs along the outer edges of the ventrals. When the 

 scales of the dorsal surface are rubbed off, the underlying skin is a uni- 

 form rich, dark blue. These specimens are colored almost exactly like 

 Dendrelaphis cwruleatus. 



The natives of Polillo call all Dendrophis and Dendrelaphis, and 

 probably other similar snakes, calapiin matulin. Calapiin means "poi- 

 sonous snake," matulin, "quick." 



Dendrelaphis cseruleatus Griffin, Nos. 760, 761, 762. 

 Hurria rhynchops (Schneider), No. 788. 

 Boiga cynodon (Boie), No. 803. 

 Boiga angulata (Peters), No. 789. 



