VIBRISSiE OF KATUFA 



131 



primordia of the squirrel, the otherwise latent 

 capacity of producing mammary hairs comes 

 into action, whilst in compensation there is 



Fig. 47.— "Ratufa macrura," showing Sixteen 



VlBRISS^E. (BrESSLAU.) 



«1, First abdominal nipple primaiy-priniordium ; Og, second abdominal 

 nipple primary-primordium ; i, inguinal nipple primary- prim or - 

 dium. 



a cessation of the development of the milk 

 glands. As the result of the disappearance of 

 the latter and the consequent freeing of their 

 vascular supply, the mammary hairs would 



