PLATE VIII 



EXPLANATION OF FIGURES 



10 Adult cat (Darrach Series), Type AB. Persistence of right posterior 

 cardinal and right supracardinal veins. Periureteric venous ring, through which 

 ureter passes, present on right side. 



11 Adult cat (Darrach Series), Type ABC. Persistence of right posterior 

 cardinal, right supracardinal, and left supracardinal veins. Periureteric venous 

 ring, through which ureter passes, present on right side. 



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