1881.] 



VAGINAL APPARATUS IN THE MACROPODID^. 



989 



open. The two folds in the urogenital canal are well marked. In this 

 specimen the lateral canals end, as usual, by the sides of tliis median 

 opening, and not further back as in the young one (a). This may 

 liave been an individual peculiarity of «. 



Fig. 3. 



r. l.o. 



Tlie vaginal apparatus of DcndroJagus inmitcs, naiural size. 



The left uterus, the median canal, the loft lateral canal, and the urogenital sintia 

 have been cut open along the dorsal aspect. 1. 1, c, left lateral vaginal 

 canal ; r. I. c, right lateral vaginal canal ; U, the orifice of the urethra in 

 the urogenital sinus ; ur, the ureters ; tit, the right uterus. 



The constriction and cross fold in the lateral canals are very dis- 

 tinct. 



Of the Rock-Kangaroos (Pelroc/ale xanthopus), specimen a bore 

 a minute young one in the pouch. Tlie median vaginal chamber 



