Development of the Nine-Banded Armadillo. 413 



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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; f.u. 

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



FIG. 8. Portion of the yoik-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. 



