292 ZOOTOMY. 



146. The diaphragm, a thin membrane, partly muscular, 

 partly fibrous, which forms the anterior wall of the cavity ; 

 through its transparent central portion will be seen the pink 

 lungs. 



147. The large, dark-red liver, made up of several lobes, 

 and situated immediately posterior to the diaphragm. 



148. The smooth-walled, bluish-white stomach, pardy 

 covered by the liver : its more dilated (cardiac) end is seen 

 to lie towards the animal's left side. 



149. The reddish coils of the small intestine, some of 

 which are seen at the anterior, others at the posterior part 

 of the abdominal cavity. 



150. In about the posterior two-thirds of the cavity are seen 

 (usually) three folds of the enormous caecum or blind gut, 

 known by its olive-green colour, the spiral constriction en- 

 circling it, and the fact of its diameter being many times 

 greater than that of the small intestine. 



151. The colon, usually situated between two folds of the 

 cscum, with which it is seen to be connected, and which it 

 resembles in colour ; its diameter is less than that of the 

 CEecum, and its walls are sacculated. 



152. In the hinder end of the cavity, as well as in its 

 right anterior corner, are usually to be seen portions of the 

 rectum, which is of a light brownish colour, and contains 

 pill-like masses of black fsecal matter. 



153. Quite at the posterior end of the cavity is seen the 

 urinary bladder, the amount visible of which varies 

 greatly according to its state of distension 



154. In a male specimen the scrotal sacs, hanging 

 down from the abdominal cavity, one on each side of the 

 penis. 



155. By turning aside the intestines, the kidneys (§§ 187, 

 196) are seen attached to the dorsal wall of the abdomen. 



