562 



RUFFED GROUS. 



denum is 5^ twelfths ; that of the greater part of the rest of the in- 

 testine 6 twelfths ; the cloaca, h, is not enlarged. 



The trachea is 6 inches long, rather slender, its breadth at the top 

 3 twelfths, at the lower part 2\ twelfths. The rings are feeble and 

 unossified, 100 in number. There are no inferior laryngeal muscles. 

 The bronchi are very short, rather wide, of about 12 half rings. The 

 lateral muscles are rather large, the sterno-tracheal slips moderate. 



