432 



TEXTBOOK OF ZOOLOGY 



VENTRAL CAROT\0 A 



AFFERENT E.RANCH\ALS 



TRUNCUS ARTERIOSUS 

 ATRIUM 



VENTRICLE 

 DUCT OF CUVIER 



HEPATIC SINUS 

 CARDINAL SINUS 



INTERNAL CAROTID A. 

 POSTERIOR CAROTID A. 



VENTRAL AORTA 

 EFFERENT E.RANCH\ALS 



ANTERIOR CARDINAL SINUS 

 JUGULAR V. 



SINUS VENOSUS 



HEPATIC PORTAL V 



HEPATIC A 

 GASTRIC A 



HEPATIC V. 



LATERAL 

 ABDOMINAL V 



PANCREATIC A 



INTESTINAL V 

 INTESTINAL A. 



RENAL PORTAL V 

 \L1AC V. 

 \LIAC A- 



CAUDAL A 

 CAUDAL V 



SUBCLAVIAN V. 

 SUBCLAVIAN A. 



OVARIAN A. 

 GENITAL V. 

 COELIAC A. 

 OVIDUCAL A. 

 GASTRIC V. 

 DORSAL AORTA 

 POST- CARDINAL V. 



SPLENIC INTESTINAL V. 



PANCREATIC V. 



SPLENIC A. 

 INTESTINAL A. 



RECTAL GLAND A. 

 RECTAL GLAND V. 



Fig. 233. — The circulatory system of the spiny dogfish, Squalus acanthias. 

 (From Atwood: Introduction to Vertebrate Zoology, published by The C. V. 

 Mosby Company.) 



