258 



SNAKES OF THE PHILIPPINE ISLANDS 



248.5, 108; Luzon (Baguio). 



15 ' 

 250.5; 92.5. 



Variation.— Three islands are represented in the collection, 



and the following differences in scale formula? are noted. These 



formulsB are compiled as averages from the table: Palawan, 



iqoi . 17-19 



four specimens. ^'^^ : 262; 103; Mindoro, two specmiens. 



19 

 two specmiens, - ; 

 15 



The Palawan forms have a larger number of ventral scales than 

 do those from the other two islands. I doubt whether these aver- 

 ages would be maintained with large series. The total averages 

 of ventrals and of subcaudals of the eight specimens are 256 and 

 101, respectively. Of the specimens listed by Boulenger the 

 averages are : Ventrals, 249 ; subcaudals, 101. Thus it appears 

 that the Philippine specimens have a slightly higher average of 

 scales. Boulenger lists four color varieties, but these may be 

 largely due to the various ages of the specimens. The young 

 are always more vividly marked than the adults. Peter's 

 Ophiophagus fasciatus is probably founded on a young specimen. 

 The number of undivided subcaudals varies ; the specimens have 

 a range of from 7 to 41, the one with the highest count being a 



Table 54. — Measurements and scale counts of Naja hannah (Cantor). 



No. 



727 

 12 

 13 

 14 

 IB 

 16 

 17 

 18 



Locality. 



Collector. 



I Mindoro -J C. Burks j d" 



Palawan j M. Ramos 1 ? 



do j C. M. Weber o' 



Baguio — , ] ^ 



Palawan ' C. H. Lamb 



do ' do 



Mindoro | Marine Biolof?ical Expedition_ 



Baguio L. E. Griffin cf 



Collection. 



E. H. Taylor. 

 Bureau of Science. 



Do. 



Do. 



Do. 



Do. 



Do. 



Do. 



' Abnormal. 



