L'Mv 



PLATE XX. 





m 



m 



m 



r>/'..''' 







■j?:ir?jr:^'=i ■ 



fis^ 



k>*.i 



•t/.vl 



Fig. 1. Trimesurus gramineus. 

 Fig. 2. Feltopelor macrolepis. 



Fig. 3. Dahoia eletjans. 

 Fig. 4. Echis carinafa. 



