254 



PLACENTA OF THE UNGULATA. 



epithelium are carried away when the foetal villi are separated from the 

 uterus. The glands of the uterus open in the intervals between the 

 cotyledons. The character of the cotyledons differs greatly in different 

 types. The maternal parts are cup-shaped in the sheep, and mushroom- 

 shaped in the cow. There are from 60100 in the cow and sheep, but 



Ch 



FIG. 157. UTERUS OF A Cow IN THE MIDDLE OF PREGNANCY LAID OPEN. 



(From Huxley after Colin.) 

 V. vagina; U. uterus; Ch. chorion; C\ uterine cotyledons; C 2 . fcetal cotyledons. 



FIG. 158. COTYLEDON OF A Cow, THE FCETAL AND MATERNAL PARTS HALF 



SEPARATED. (From Huxley after Colin.) 

 u. uterus; Ch. chorion; C 1 . maternal part of cotyledon; C 2 . fetal part. 



