200 HODENTIA. 



The stomach does not become gradually smaller towards the pylorus, 

 but much more suddenly than in the human. 



The duodenum is loose, having a broad mesentery, and is much longer 

 than common ; for, at the lower end, before it passes across the spine, 

 it makes a loose fold upon itself for five or six inches, having a pretty 

 broad mesentery attaching this fold together. The last part of this fold, 

 just before it crosses the spine, is attached to the rectum by a thin 

 membrane for nearly three inches ; and, where it crosses, it is more 

 attached to the root of the mesentery ; it then becomes a loose intestine 

 as common. The ileum, before it passes into the caecum, passes between 

 the first turn of the colon and caecum for nearly seven or eight inches 1 , 

 being attached to the mesocolon of this part, and along the same attach- 

 ment it is attached to the caecum 2 . 



The great epiploon is attached to the great curve of the stomach at 

 the pylorus ; but, near the great end of the stomach, the attachment 

 passes behind the stomach where the spleen is attached : the epiploon 

 adheres, on the right, to the beginning of the duodenum, behind and on 

 the right to the transverse arch of the colon, and on the left to the 

 upper edge of the left end of the pancreas : there is no fat upon the poste- 

 rior fold. The spleen is very small and long, lying in the folds of 

 the epiploon. 



The liver is divided into three lobes, besides the lobulus Spigelii : the 

 middle lobe is the largest, having a pretty deep fissure in it ; upon the 

 right of which is situated the gall-bladder, as in the human. The right 

 lobe lies just above the kidney, not more forward than the kidney, and 

 is the smallest : the upper end of the kidney lies in a deep depression in 

 this lobe. The left lobe is pretty regular, having only an oblique sulcus 

 in it, like a cat's. In another hare it had not this, but had three notches 

 on its edge. The lobulus Spigelii is half out from behind the posterior 

 mesogaster, and half behind it, but not attached to it : the anterior 

 mesogaster is entirely before it, and is a very thin membrane just cover- 

 ing that part of the liver which protrudes, which protrusion is adapted 

 to the hollow of the stomach. The gall-bladder is oblong, much of the 

 shape of the human, but not so much contorted at the neck or beginning 

 of the cystic duct. This duct makes a little turn upon the bladder, 

 then goes on straight, and receives all along some ducts from the liver, 

 principally from the middle lobe to which it is attached ; it then receives 

 a large duct from the left lobe, and some way further on it receives the 

 duct from the right lobe, so that it is hard to say what is precisely 

 cystic : it enters the duodenum about an inch from the pylorus. 



1 [Home, Comp. Anat, i. p. 453.] - [Hunt. Preps. Nos. 727, 728.] 



