Kg. 17. 



Intestinal Tract of Nycticorax griseus. 

 C.C., single colic caecum characteristic of Herons ; 1-. 1 and 7i-. 2, supra-c;ecal kinks. Other lettering as before. 



Fig. IS. 



m 



Intestinal Tract of Ardea candidissima. Lettering as before. 



