The Urogenital Organs 193 
A fairly wide ureter, Fig. 54, u, Fig. 55, d, 
extends from the posterior end of each kidney to 
open (Fig. 54, u’, Fig. 55, e) 
into the anterior region of the 
cloaca, as described in con- 
nection with the digestive 
system. 
The ovary, Fig. 54, 0, as 
noted above and as seen in 
Figs. 54 and 55, in the young 
animal is of practically the 
sameshapeasthetestis. The 
ova at this stage are of mi- 
croscopic size and are hence 
not visible to the naked eye. 
The ovary, even at this stage, 
is more or less distinctly 
marked off into lobules by a 
series of small grooves. H 
The oviduct, Fig. 54,f, which 
at this stage is, of course, of ae 
small diameter,extendsacross Fy¢.54. FEMALE URoGEN- 
the ventral surface of its cor- ITAL SysTEM. 
responding kidney and opens, * duct!#, kidney? mesentery; 
f", into the posterior part of ureter." Mapa ae 
the cloaca as has already been described. Its 
peritoneal opening is some distance cephalad to 
the head of the ovary. Its course from this 
opening is straight until about the anterior end 
of the ovary; it then becomes somewhat con- 
13 
