MEADOW LARK. 



498 



inches long, very narrow, its average width along the neck being 2^ 

 twelfths ; on entering the thorax it 

 enlarges to 3 twelfths ; the proven- 

 triculus, be, is 5 twelfths in breadth, 

 its glandular belt 6 twelfths. The 

 stomach, cd e, is a, very strong mus- 

 cular gizzard, placed obliquely, of 

 an elliptical form, 11 twelfths in 

 length, 9^ twelfths in breadth ; 

 The proventricular glands are large, 

 nearly globular, ^ twelfth in diame- 

 ter. The muscular coat of the sto- 

 mach is rather thin, the thickness 

 of the lateral muscles being 2 

 twelfths ; the epithelium dense, 

 tough, dark red, with three longi- 

 tudinal rugae on each side. The 

 contents of the stomach are remains 

 of insects, larvae, and especially legs 

 of grasshoppers. The intestine, e/*^ A 

 ij, is of moderate length and width, 

 the former being 12^ inches, the lat- 

 ter averaging 2^ twelfths. The duo- 

 denum, ef, curves in the usual manner 

 at the distance of If inches, and is 

 3 twelfths wide. The coeca, i, come 

 off at the distance of Ij inch from 

 the extremity, and are 3 twelfths 

 in length, 1 twelfth in width, and 

 obtuse ; the cloaca, _;', is small and 

 of an oblong form, its breadth 5 

 twelfths. 



The trachea is 3 inches long, 

 flattened, firm, of the nearly uni- 

 form width of 2 twelfths. The 

 rings are 68, with two dimidiate, rather broad and firm. There are 

 four pairs of inferior laryngeal muscles besides the sterno-tracheal, and 

 the lateral muscles are of moderate size. The bronchi are rather nar- 

 row, of 18 half rings. 



