45 



(fig. 42, St. G.). On its way it gives off several branches 

 to the right and left, which end in the substance of the 

 mantle. Running below the stellate ganglion, the pallial 

 artery ends in several branches which divide up in the 

 mantle substance. 



The left pallial artery runs just internal to the 

 visceral envelope, dorsal to the stomach, where it gives off 

 a posterior branch to the visceral envelope. Then, running 

 ;il most transversely to the left, it gains the left depressor 

 of the funnel, after giving off an anterior branch. From 

 this point its course is similar to that of the right pallial 

 artery (fig. 42, L. Fall. A.). Entering the venous sinus, 

 the aorta gives off a second large branch, the visceral 

 artery, which immediately gives off a branch ending in 

 small arteries on the right side of the stomach. Next it- 

 gives off a large hepatic artery, which enters the liver 

 dorsally and posteriorly, and breaks up in its substance 

 (fig. 42, Hep. A.). Then, running down the groove 

 between the oesophagus and the stomach, it gives an 

 anterior branching artery to the lower part of the 

 oesophagus (fig. 42), an artery to the left wall of the 

 stomach, a branch to the intestine, and ends in many 

 branches to the spiral caecum. The aorta is hidden 

 anteriorly by the crop and salivary glands; when these 

 are turned aside it may be seen to give off a branch at the 

 level of the crop to the alimentary canal (fig. 42, Oes. A.), 

 and this branch gives off an anterior and a posterior fork 

 to the corresponding parts of the oesophagus, and several 

 branches to the walls of the crop. Near the anterior end 

 of the visceral envelope, the aorta gives off a small dorsal 

 artery to the muscles of the neck (fig. 42, N.A.), and then 

 divides into two smaller forks which run one on each side 

 of the oesophagus. An aperture on the ventral surface 

 of the brain, between the anterior infundibular nerves, 



