THE GENITAL GLANDS AND DUCTS — TESTIS 



219 



Genital 

 aland 



Colon 

 Allantoi 



Umhilical 



artery 



Fig. 216. — Ventral dissection of an 18 mm. pig embryo to show the anlages of the Muellerian ducts. X 7. 



Atlanta, 



(Bladder) 



Mesmephrc 



Moellenan 



Colon 



Umbilical 

 arleru 



Fig. 217. — Ventral dissection of a 24 mm. embryo showing the anlages of the Muellerian ducts at 

 later stage of development than in Fig. 216. X 6. 



