506 MR. F, E. BEDDARD ON THE (Apr: 27, 
In Dasypus vellerosus (text-fig, 135 B) the renal veins are 
asymmetrical. The right arise in front of the left, as is so very 
usual among the Mammalia. On the right side there is one 
principal renal vein. This is reinforced by two others, but 
Text-fig. 135, 
A 
Postcaval vein and its branches in Tatusia peba (A) and Dasypus vellerosus (B). 
A.sp. Spermatic artery. Ca. Caudal plexus. mes. Mesenteric artery. 
ov. Ovarian arteries. 
Other lettering as in text-figs. 132, 133. 
these latter rather slender trunks do not reach the kidney by 
a direct route. They open into the larger of the two veins 
which arise in common from the principal renal vein and descend 
