PLATE 1 



EXPLANATION OF FIGURE 



1 Adult Tragulus meminna from a dissection in the study collection of the 

 Department of Anatomy, Columbia University, showing the pre-aortic position 

 of the post-cava. 24, aorta; 34, ureter; 36, internal iliac vein; 37, external iliac 

 vein; 38, common iliac vein (paired portion of post-cava); 39, unpaired portion 

 of post-cava; 40, sex vein; 41, spermatic artery; 4®, caudal vein; 43, common iliac 

 artery; 44, external iliac artery; 45, internal iliac artery; 57, renal vein; 58, renal 

 artery; 61, caudal artery. 



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