CO[,UBER SUMATRANUS. 53 



4er the name of Bothrops Hageni, which description I des- 

 tined for the next number of the Notes from the Leyden 

 Museum. 



In comparing afterwards my description of B. Hageni^ 

 with that of C. sumatranus and JV'. formosus I was struck 

 by the great analogy in the number of ventral shields, 

 which induced me to believe B. Hageni to be identical 

 with B. sumatranus. 



The description of the specimens is as follows: 



They all agree in having large supraciliaria , the rest 

 of the scales of the head small except the 2 large supra- 

 nasalia and their adjacent scales (PI. 2 , fig. 6). All the 

 scales of the head are flat without the slightest keel. 

 In all of them the second upper labial shield forms the 

 front part of the facial pit. The number of the ventralia 

 varies from 182 — 191, that of the anal shields from 60 — 76. 

 There are 21 scales in a transverse series, just as in the 

 B. sumatranus. 



The general color is a green one with a reddish tail. 

 No scales are edged with black except those of the last 

 series which have a small black spot at the tip and the 

 underside. All have a white line along the ventral shields. 

 This white line results from the scales of the last series 

 which have the upper half white, and the scales of the 

 second series , which have the lower half white. This 

 extraordinary manner in which this line is formed, may 

 also be seen in B. sumatranus where the pale yellow co- 

 lored line along the ventral sides is formed in the same 

 way, and not as is described by Muller & Schlegel only 

 by the second series of scales being of a pale yellow 

 color. 



Six of the nine specimens have small white spots along 

 the sides , only two specimens have a distinct pale line 

 along the sides of the head behind the eye. A very small 

 specimen, only measuring 35 cm., shows no traces of the 

 line along the sides of the head , nor any indication of 

 white spots along the sides; on the contrary the line 

 Notes from the Leyden Museum, Vol. VIII. 



