1889.] 



ANATOMY OF THE KANGAROO. 



435 



Female organs of Ospkranter embescens (J natural size). As explained in the 

 text, nearly the whole of the ui-ogenital passage has been cut away, but the 

 drawing shows the median canal, m.c, completely laid open along the ven- 

 tral median line and the cut edges pulled apart by the threads «,, a,,. 



Emerging from the right os uteri, r.o, is the umbilical cord, u.c, which 

 is seen to pass along the median canal, m.c, and to emerge from tliis by an 

 opening, X. To the attenuated extremity of this cord is attached the 

 embryo, E. Other references: — r.tU, l.ut, right and left uterus, the former 

 considerably enlarged and partially laid open ; l.ov, left ovary ; bl, bladder ; 

 r.l.c, l.l.c, right and left lateral canals ; b, c, bristles passed through their 

 cut ends ; d, bristle passing into urethra similarly cut across just before 

 its termination in the urogenital passage ; r.o, l.o, right and left os uteri ; 

 r.ur, l.ur, right and left ureters. 



The openings from the lateral canals into the median are concealed 

 from view, but were to be found just above the internal extremities of the; 

 Unes r.o, l.o. Bulgings appear at the commencement of each lateral canal, 

 crossed in the sketch by the same lines, r.o and l.o, but there was nothing 

 inside to account for the swellings. 



