92 MAMMARY APPARATUS OF THE MAMMALIA 



Didelphyidse the young ones are carried about 

 by the mother attached to the nipples, as is 

 shown in Owen's figure of a female Marmosa 



F;g. 34. — Female "Marmosa murina," with Young 

 Ones attached to the Nipples. (Owen.) 



murina (Fig. 34). Such an arrangement is 

 obviously very primitive, and any variation 

 which tended towards fixing the young more 



