82 



THE RUFFED GROUSE. 



half in length, by an inch and two- 

 twelfths in breadth, and are of a 

 uniform dull yellowish tint. 



In this species the palate is flat, 

 with two longitudinal ridges con- 

 verging anteriorly; the space between 

 these ridges and the slit covered 

 with small papilla?. The tongue is 

 triangular, flattened, sagittate and 

 papillate at the base, 9 twelfths long, 

 fleshy and pointed. The width of 

 the mouth is 8 twelfths. The liver 

 is extremely small, its lobes equal, 

 and 1 inch in length. The heart is 

 also small, 1 1 twelfths long, 7 twelfths 

 in breadth. The oesophagus, a b f, 

 is H inches in length; for three 

 inches, a b, it has a width of only 5 

 twelfths; it then enlarges to form a 

 vast crop, bed, 3-^ inches in breadth, 

 and 2j inches in length, that part of 

 it connected with which is 1 inch 5 

 twelfths in length; it then contracts 

 to ^ inch, e; the proventriculus, e f, 

 1\ twelfths in breadth. The stomach, 

 c d, is a very powerful muscular 

 gizzard, 1 inch 8 twelfths long, 1 

 inch 9 twelfths broad; the inferior 

 muscle very large, 1 twelfth thick; 

 the lateral muscles extremely de- 

 veloped, the left 6 twelfths, the right 

 5 twelfths in thickness; the epithe- 

 lium thick, tough, yellowish-brown, 

 with two concave surfaces, which 

 are deeply grooved longitudinally. 

 The pro ventricular glands are large, 3 twelfths long, occupying a space of 

 only 7 twelfths of an inch in breadth. The duodenum, h i, curves at the 

 distance of 4 inches. The intestine, h i j k, is 4 feet 1 inch long; the coeca 

 come off at the distance of 6i inches from the extremity; one of them 17 J, 

 the other 16^ inches long; their width for three inches 4 twelfths, in the 

 rest of their extent 6 twelfths; they are narrowed toward the end, and 



