74 



OVIDUCTS OF MARSUPIALS 



FIG. 48. Female urino - genital 

 apparatus of various Marsu- 

 pials. A, Didelphys dorsigera 

 (young) ; B, Trichosurus ; 

 C, Phuscolomys wombat. B, 

 Urinary bladder ; Cl, 

 " cloaca " ; Fim, fimbriae ; 

 g, clitoris ; N, kidney ; Od, 

 Fallopian tube ; Ot, aper- 

 ture of Fallopian tube; Ov, 

 ovary ; r, rectum ; Sp, sep- 

 tum dividing vagina ; Sug, 

 urino - genital sinus ; Ur, 

 ureter ; Ut, uterus ; Ut', 

 opening of the uterus into 

 the median vagina ( VgB) ; 

 Vg, lateral vagina ; Vg', its 

 opening into the urino-genital 

 sinus ; t (in B), point of 

 approximation of uteri ; t (in 

 C) and *, rectal glands. (From 

 Wiedersheim's Comparative 

 Anatomy.) 



extruded ova to follow. This series of steps in the perfecting 

 of the mode of safe extrusion of the ova is highly interesting, 



