CIRCULATION IN REPTILES. 



245 



Arches of aorta 



Left auricle 



\ 



\ 



Super, vena cava _ 



Ventral aorta 



Pulmonary artery 



Inferior vena cava 



Liver and hepatic 

 vein 



Kidneys 

 Ventral Aorta 



Carotid artery 



Arches of Aorta 

 Right Auricle 



Ventricle 

 Pulmonary vein 

 Brachial artery 



Pulmonary artery 



Lungs 

 Stomach 



Gastric vein 



Vena portas 

 Intestines 



Fig. 134. CIRCULATING APPARATUS OB LIZARD. 



286. In the class of FISHES, the circulating apparatus is 

 still more simple. The heart only possesses two cavities, an 



