COMMON GANNET. 239 
ventriculus, being destitute of epithelium ; several large mucous crypts 
are scattered over its surface. The pylorus is small, having a diameter 
of nearly 3 twelfths, and a marginal flap or valve on one side. The intes- 
tine, f, g, 2, is of moderate length, measuring 53 inches. The duodenum 
at first passes upwards in the direction of the liver for 2 inches, fg, is then 
recurved for 3 inches, g,/, ascends for 4 inches, /,7, and receives the biliary 
ducts, then passes toward the spine and forms a curvature. The ave- 
rage diameter of the intestine is 5 twelfths at the upper part, and it 
gradually contracts to 3 twelfths. The rectum, 4, measured to the anus 
is 5+ inches. It gradually enlarges from 4 to 63 twelfths. The cloaca, m, 
is globular, 9 twelfths long, 8 twelfths broad. The coeca are 3 twelfths 
long, 13 twelfth broad. 
The lobes of the liver are extremely unequal, as is always the case 
when the stomach or the proventriculus is excessively large, the right 
lobe being 22 inches long, the left 1 inch and 8 twelfths. The gall- 
