OF THE KOALA AND VULPINE PHALANGER. 



573 



Branches of the separate nerves in the thorax, — Left recurrent 

 laryngeal nerve (e), cardiac (/), pnlmonary ((/), and a branch 

 from each nerve which unites with its neighbovir to form a iine 

 cord, which runs posteriorly along the ventral surface of the 

 cesophagus (Ji). 



The combined trunk of the vagi enters the abdomen dorsal to 

 the oesophagus, runs dorsal to the stomach, and ends in the left 



Text-figure 62. 



The vagus nerves of Fliascolarctos cinereus in neck and thorax. 



half of the solar plexus. It gives ofi' ventral gastric nerves in 

 the thorax {i), and stout ventral {j), and strong dorsal (k), gastric 

 nerves in the abdomen. 



It is possible that sympathetic filaments run anteriorly from 

 the solar plexus to the stomach in the combined trunk of the 

 vagus, for it has been shown that sympathetic filaments run in 

 other nei-ves ie. (/.^the sciatic). 



