532 



MARSUPIALIA. 



18' 



FIG. 278. Female urinogenital organs, A, a young Didelphys dorsigera (after [Brass), 

 ventro-lateral view, the urinogenital sinus is opened. B, Phalangista vulpina, dorsal 

 view, the. urinogenital canal and left vaginal pouch are opened. C, Macropus rufus, 

 dorsal view, the left uterus and vagina, the vaginal pouch or caecum, and the urino- 

 genital canal are laid open ; the two vaginal caeca have united and open directly into 

 the urinogenital canal, showing that the animal from which the preparation was made 

 had borne young. (B and C from original drawings by J. J. Lister.) 1, Kidney ; 

 2 ureter ; 3 ovary ; 4 fallopian tube ; 5 uterus ; 6 curve where the vagina passes into the 

 uterus ; 7 vaginal caecum ; 8 vaginal caecum united with its fellow and opening into 

 urinogenital canal ; 9 vagina ; 10 opening of vagina into urinogenital canal ; 11 opening 

 of coalesced vaginal caeca into urinogenital canal ; 12 bladder ; 13 opening of bladder 

 14 urinogenital canal ; 15 rectum ; 16 rectal gland ; 17 opening of rectum ; IS clitoris. 



