PLATE XXX 



EXPLANATION OF FIGURES 



41 Adult cat (Darrach Series), Type BC. Persistence of right lumbar 

 supracardinal and caudal section of left lumbar supracardinal vein. Anastomosis 

 present, dorsal to aorta, at iliac level, between iliac veins of opposite sides 

 (left common iliac vein). 



42 Adult cat (Darrach Series), Type BC. Persistence of right lumbar supra- 

 cardinal and caudal section of left lumbar supracardinal vein. Anastomosis 

 present, dorsal to aorta, at level of iliolumbar veins. 



116 



