SNAKES FROM THE KHAS1 RILLS, ASSAM. 337 



allowed the wheels to come into contact with, and even override and 

 rest upon its coils without betraying fear or annoyance. An equal 

 degree of contempt was manifested with dahlias of various shades of 

 red. 



Lachesis jerdoni. 



A single small specimen. 



Lachesis gramineus. 



Three specimens, 2 #, 1 9. Ventrals : $ 158 to 171, 9 156; 

 subcaudals : $ 64 to 65, 9 57. The scales in all were alike and 

 conformed to the arrangement of the vast majority of specimens of 

 this species. Anteriorly and in midbody they are 21, posteriorly 15. 

 The three reductions in the rows from 21 to 15 are somewhat 

 variable, but arise from a confluence of the 4th to 7th rows above 

 the ventrals. 



In one specimen the postocular streak was particoloured, white 

 below, liver above. At the angle of the mouth these two hues were 

 reversed and carried down the whole body as a flankline along the 

 last costal row. 



