NECK GLANDS OF THE MARSUPIALIA. 



357 



Fig. 2 is a representation of the anatomy of the deeper 

 ventral part of the neck and thorax of the same animal. 

 The thoracic thymus is seen occupying its typical mam- 



^ 



;/ 



M. Slerno-hvdfct-- , M.Steriw-deido-MaAiJ. 



' A ' 'Afinlft """M-Sterno-thyroid. . 



^ "11 ft Omo-kyold. ' 



A. Carotid COtn; 

 V. juaular Int. 



M Sympathetic*^ 



V.SuWo-Viaivi 



Mediastinum. ~--m 



Heart 



Thyroid. 



V J^avlar Ext. 



"fraeiW, 



Tkymus. 



ir 



Fig. 2. Dendrolagus ; dissection of the deeper parts of the neck and 

 thorax. Natural size. 



malian position in the anterior mediastinal cavity over 

 the base of the heart. It consisted of two lobes, and was 

 much smaller than the superficial organ. No extensive 



