66 



ZOOLOGY. 



Carotid 

 / Artery. 



/ Arches of 



x the Aorta. 



>-' Left 

 '' Auricle. 



Ventricle 

 of the 

 ^. Heart. 



Pulmonary 

 ..~"""' Vein. 

 ....-- --" Brachial 



Artery. 



_^-- Pulmonary 

 Artery. 



Lungs. 

 Stomach. 



Kidneys. 



Ventral 

 Aorta. 



Fig. 51. Circulatory Apparatus in the Lizard. 



