XENOPELTIS 



75 



Measurements of Xenopeltis unicolor Reimoardt. 



mm. 



730 

 84 

 15 

 25 



Total length 



Tail 



Width of head 



Length of head 



Variation. — Practically no variation is evident in color or 

 marking save that in the young the purple is more pronounced 

 and the collar is almost pure yellowish white. The specimen here 

 described is abnormal in having only the fourth labial entering 

 the eye on one side, and only minutely on the other side. The 

 fourth and fifth labials enter the eye in all specimens examined 

 except one (No. 736, Bureau of Science collection) in which 

 the fourth labial alone enters the eye on one side. Boulenger * 

 gives the range of ventrals as 166 to 193 ; of subcaudals, 26 to 

 31. It is significant that in the six specimens listed in the 

 attached table the subcaudal count is identical. 



Table 10. — Measurements and scale counts of Xenopeltis unicolor 



Reinwardt. 



No. Sex. 



734 

 736 

 736 

 737 

 738 

 739 



No. 



do. 



do. 



do. 



; do- 



do. 



.do . 

 .do . 

 .do . 

 .do . 

 .do. 



36.5 

 672 

 666 

 736 

 610 



Ven. 

 trals. 



S"b- Upper Lower Scale ';^';f'^ 



■jj?; labials. I labials, rows. , *"„„ 

 Qais. I I eye. 



Collection. 



Remarks. — The species was discovered in the Philippines by 

 Mr. C. M. Weber in Palawan, and was first recorded by GrifRn.f 



* Cat. Snakes Brit. Mus. 1 (1898) 168. 

 t Loc. cit. 



