40 CARNIVORA. 



middle of the body, and this doubling is so close as to bring the bent 

 parts in contact. The pylorus is very large, having a mesopylorus 

 nearly half a foot long, in which lies some of the pancreas with its 

 ducts, vessels, &c. The valvular part of the pylorus is not so promi- 

 nent nor so regular as in the human subject. 



The duodenum was loosely attached by a broad mesentery, and 

 measured in length about 12 inches : the length of the small intestines 

 was 18 feet ; their circumference was uniform throughout, 2| inches. 

 The caecum was 2 inches long, and the same in circumference ; its form 

 being that which is met with in the domestic cat. The length of the 

 large intestines was 2 feet 10 inches ; their circumference 4 inches. 

 The muscular coat of the intestines was thick throughout their whole 

 extent. 



The duodenum is very long and loose, having a broad thin meso- 

 duodenum. At the lower part of the duodenum, where it is passing 

 across the spine, it is attached to the spine by a thin doubling of the 

 peritoneum, which doubling is fixed to the spine and to the kidney of the 

 right side, by which it attaches the right lobe of the liver to the kidney ; 

 this doubling is attached to the mesocolon upon the left, and the whole 

 is of a semilunar form, whose concavity is upwards ; besides this attach- 

 ment, the duodenum is attached to the posterior part of the root of the 

 mesentery, which is firmer than the former [attachment], and then it 

 becomes loose. 



The ileum passes into the caecum upon the right, but does not cross 

 the body in the same regular manner as in the human, and it is like- 

 wise a good deal higher ; from thence the colon passes to the left, having 

 a broad mesocolon ; it then passes down, getting more into the middle of 

 the body, to the pelvis. The mesocolon is just a continuation of the 

 mesentery, so that the colon is as loose as the other intestines every 

 where, and on this account there is no precise situation for the colon 1 . 



The mesentery and mesocolon are long and very thin, lined with fat 

 where the vessels pass, and along the attachment to the intestines. The 

 mesenteric glands are large at the root of the mesentery : there are some 

 in the mesocolon, especially about the caecum ; and the vessels of the 

 mesentery do not anastomose as in the human, making but one arch, a 

 good deal similar to the vessels of the mesocolon in the human subject. 



The mesogaster is very irregular, not inserted into the stomach in 

 one straight line, but being in some measure scolloped, so that some 

 parts are inserted near the middle of the anterior surface of the stomach ; 

 and, upon the posterior part of the concave arch of the stomach, there 

 is another mesocolon; but this is only attached to the stomach just 

 1 [Home, Comp. Anat. i. p. 437.] 



