194 



MR. F. E. BEDDARD ON THE 



[Feb. 19, 



and opened into the vena cava inferior (text-fig. 66) just before 

 the debouchment of the latter into the right auricle. This is 

 clearly the Artiodactyle condition of the vein in question, though 

 difiering in detail from that of any particular Artiodactyle that 

 has been studied and described. For in that group there is either 



Text-fia-. 66. 



Scl 



Syrax capensis ; two different arrangements of azygos system. 

 post.cav. Postcaval. Other letters as in text-fig. 62. 



an anterior and a posterior branch of the left azygos which unite 

 close to the opening into the auricle or vena cava posterior, or the 

 posterior branch alone is present. In Hyrax it is the anterior 

 branch alone which is present. 



