344 GEORGINA SWEET. 



Fig. 17.— View of pouch cut open ventrally, showing position of the two 

 mamniEe, and the relation of the pouch to the cloacal opening [do.). X 2. 



Fig. 18.— Section througli rectum of male, showing anal glands {a.gl.), 

 urethra, corpora cavernosa, corpus spongiosum, and gland tubes in rectal 

 wall. Zeiss A* oc. 2. 



