102 ORGANIZATION AND DEVELOPMENT OF ANIMALS IN GENERAL. 



ratus present differences in the two sexes, being modified for the 



Fis. 96a. Left urinary and generative or- 

 gans of a female Salamander without the 

 cloaca. Ov, ovary ; N, kidney ; lig, urin- 

 ary duct corresponding to the Wolffiaa 

 duct ; My, Miillerian duct as oviduct. 



FIG. 96J, Left urinary and generative organs 

 of a male Salamander, more diagrammatic. 

 T, testis ; Ve, vasa efferentia ; N, kidney 

 with its collecting tubules ; Mg, Miille- 

 rian duct as a rudiment; Wg, Wolffian 

 duct or vas deferens ; Kl, cloaca with ac- 

 cessory glaiids Dr, of the left side. 



performance of special functions in the sexual life. The female is 



