Development of the Nine-Banded Armadillo. 413 







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.8 



M. 



Fig. 7. The genitalia of an adult virgin female as seen from the dorsal aspect 

 b.l., broad ligament; c, cervix of uterus; c.l., coprus luteum in left ovary; /. 

 fundus end of uterus ;/.<., fallopian tube; 2., infundibulum; o., ovary. X 3. 



Fig. 8. Portion of the yolk-sac wall in the region of the area vasculosa (see fig. 

 15). It shows three blood cords in section. These are made up of a central core of 

 solidly packed cells, b.c, which are surrounded by the mesodermal epithelium, ms. 

 X 215. 



Fjg. 9. Cross section of the Trager of our youngest vesicle (fig. 12), showing 

 three adjacent Trager cords or knots (tr.k) ; tr.e., Trager epithelium. X 265. 



