166 



VERTEBRATA : AVES OR BIRDS. 



FIG. 194. 





ttire of the tarsal enve- 

 lope, which consists of 

 scutella in the form 

 of cylindrical plates, 

 whose edges come to- 

 gether along a groove 

 toward the hind part 

 of the inner face. 



Bird of Paradise, Paradima. 



