102 ORGANIZATION AND DEVELOPMENT OF ANIMALS IN GENERAL. 



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



FIG. 96a. L.t't urinary and generative or- 

 gans of a female Salamander without the 

 cloaca. Ov, ovary ; 2f, kidney ; fig, urin- 

 ary duct corresponding to the Wolflian 

 duct; Mg, iliiilcrian duct as oviduct. 



FIG. 9C4, Left urinary and generative organs 

 of a male Salamander, more diagrammatic. 

 T, testis; i'e, vasa efferentia; N, kidney 

 with its collecting tubules ; My, Miille- 

 rian duct as a rudiment; Wg, Wolffian 

 duct or vas deferens ; SI, cloaca with ac- 

 cessory glands Dr, of the left side. 



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



