Alexander G. Rutrven 



PLATE X 



Figure i. Oxybelis acuminata (Wied), taken near Santa Marta. An arboreal 

 species which has such a slender body that it can move directly through the branches 

 of the trees at an astonishing speed. 



Figure 2. Drymobhis rhumbifer (Giinther). San Lorenzo. 



