526 



IVORY-BILLED WOODPECKER. 



posterior aperture of the nares is oblongo-linear, margined with acute 

 papillae, the space between it and the ridges also papillate. 



The nostrils are oblong, 3 twelfths in length, 1^ twelfth in height, 

 entirely covered by the bristly reversed feathers. The aperture of the 

 eye is 4^ twelfths in width. That of the ear horizontally oblong, 35 

 twelfths in length, and 2 twelfths in height. 



The heart is of moderate size, broadly conical, 1 inch 2 twelfths 

 long, 1 inch 1 twelfth in breadth at the base. The liver is very small, 

 the right lobe much larger than the left, the former being 11 twelfths 

 long and 1 inch broad, while the latter is 10^ twelfths long and 7 

 twelfths in breadth. There is no gall-bladder. 



The oesophagus, a 5 c, is 6^ inches long, and of the nearly uniform width 



of 6 twelfths. On entering 

 the thorax, at a, it curves con- 

 siderably to the left side, and 

 becomes very muscular ; the 

 proventriculus, be, has abreadth 

 oil\ twelfths. The stomach, cd 

 is of moderate size, of a broadly 

 elliptical form, directed a little 

 towards the right, somewhat 

 compressed, 1 inch 2 twelfths 

 long, and of about the same 

 breadth. The muscular fas- 

 ciculi on the proventriculus 

 are extremely large. On the 

 stomach also they are of great 

 size, and the greatest thick- 

 ness of its muscular coat 

 is 1^ twelfth. This organ 

 is completly filled with very 

 hard seeds of different kinds, 

 and some pulpy matter, but 

 without any insects or lar- 

 vae. Its inner coat is thin, 

 dense, very tough, nearly 

 smooth, and of a dusky brown 

 colour. The proventricular 



Fig. 1. 



