XIII 



PHYLUM CHORDATA 



375 



7.C 



sc.a 



r.p c.m.v 



FIG. 'JS5. Columba livia. The heart and chief blood-vessels, ventral aspect^ ft. ao. arch of 

 aorta ; a. ni. a. anterior niesenteric artery ; o. r. r. afferent renal veins ; a. r. r'. vein bringing 

 blood from pelvis into renal portal system ; jr. o. brachial artery ; l>r. r. brachial vein ; 

 c. caudal artery and vein ; c. c. common carotid artery ; c. m. r. coccygeo-nieseuteric vein, dis- 

 placed to the right ; cce. a. cceliac artery ; <7. /j. dorsal aorta ; e. c. external carotid artery ; 

 i.ji;/. epigastric vein ; e. r. r. efferent renal vein ; /. a. femoral artery : /. c. femoral vein ; h. v. 

 hepatic vein ; i. c. internal carotid artery ; /. 'it. internal iliac artery and vein ; i. m. internal 

 mammaiy artery and vein ; in. a. innominate artery ; i. v. iliac vein ; ju. jugular vein ; ju'. 

 anastomosis of jugular veins ; I. an left auricle ; /. p. a. left pulmonary artery ; I. pre. left 

 pre-caval vein ; I. en. left ventricle ; pc. left pectoral arteries and veins ; pc. a. right pectoral 

 artery ; pr. c. right pectoral vein ; p. m. a. posterior niesenteric artery ; pt<:. post-caval vein ; 

 /". i', i-ii. J, /. -3, renal arteries ; /. au. right auricle ; /. p. r. renal portal vein, on the left 

 side of the figure, supposed to be dissected so as to show its passage through the right kidney ; 

 /. p. ". right pulmonary artery ; r. pr. c. right pre-caval vein ; r. c. renal vein ; r. rn. right 

 ventricle ; sc. a. sciatic artery ; sc. r. sciatic vein ; scl. o. subclaviaii artery ; rr. veitebral 

 artery and vein. (From Parker's Zootomii.) 



