534 



PILEATED WOODPECKER. 



twelfths, continuing thence nearly uniform, its greatest width on the 

 neck being i inch. The proventriculus, he d^ forms an immense sac, re- 

 sembling a crop, 2i inches in length, 1 inch 5 twelfths in width. The 

 stomach itself, d^ is very small, of a roundish form, and having the struc- 

 ture of a true gizzard ; its length 9 twelfths, its breadth about the 

 same, a little compressed, with two distinct lateral and an inferior 

 muscle, the tendons 7 twelfths in breadth. The lobes of the liver are 

 unequal ; there is no gall- 

 bladder, but there are two ^-^<3:- 

 biliary ducts. The walls of 

 the proventriculus and sto- 

 mach are extremely thin. 

 The proventricular glands 

 are globular, very small, and 

 form a belt of irregular 

 breadth, in one place 10 

 twelfths, in another only \ 

 inch ; it is situated much 

 farther up than usual, to-wit 

 at the commencement of the 

 dilated portion, upwards of 

 an inch distant from that of 

 the muscular part of the 

 stomach. The lateral mus- 

 cles of the latter are strong, 

 and 3 twelfths in thickness ; 

 its epithelium is very thin, 

 tough, of a light brownish- 

 red colour, with broad lon- 

 gitudinal rugae. (In another 

 individual, the epithelium 

 having been dissolved, the 

 inner surface of the stomach was quite soft and smooth. The same 

 circumstance has several times occurred in the course of these dissec- 

 tions, and is apt to lead the observer astray, so that in all cases where 

 this horny cuticle seems wanting, it would be well to examine other 

 specimens.) The intestine, defgh, is very short and wide, its length be- 

 ing 15^ inches, its width in the duodenal portion 5 twelfths, about the 



