Anatoviy of Notoryctes typhlops. 1 1 1 



arteries. So that the condition of these blood vessels in 

 Notoryctes does not by any means fit into any one of the types of 

 variation found in Didelphys. Indeed, so far as one isjustitied 

 in relying on an individual figure or dissection, the condition of 

 the iliac veins, and the relation of the external iliac artery to the 

 external iliac vein, shown by McClure in Petrogale^, is much 

 more like Notoryctes. 



It is evident that more detailed knowledge is needed of the 

 condition of these blood vessels in Marsupials generally before 

 they can be relied upon as a final test of aflinity between 

 groups. 



1 Amer. Jour, of Anat., vol. ii., No. 3, 1903, p. 338, fig. vi. 



