CIRCULATION OP FISHES. 



15 



traversed these organs, passes towards the head by another 

 vessel, which in like manner runs along the edges of the branchial 



Branchial Artery 



Arterial Bulb v 



Venous Sinus 1 * 



Vena Porta, Liver, &c 



Intestine 



Vena Ca 



, Vessels of the Gills 



Dorsal Artery 



Kidneys 



- Dorsal Artery or Aorta. 



Fro. 358. CIRCULATING APPARATUS OF FISH. 



archos. These canals then send out some branches to the 

 neighbouring parts, and are united together again to form a large 

 dorsal artery, which passes backwards, beneath the vertebral 

 column, and spreads its ramificationo to all parts of the- body. 



