I m; Q 1 Illi: MIL HI 1 Ll KB, 





1:1 ' lll(1 



hbC 



tomorpkosi* in tk > enxw war '>,-,. 



The in- tamorphoekl Ol the primitive eml.ryonir fun<lament> in the 

 f. male i> in many particulars tin- opposite !' that in !h- male. ina> 

 iniieh aa ]'art> \\hieh a iv ma. I "' 



mentary in t In- 

 former, ami 



(com 



I are with >n- 



a not her t In- 

 <1 i a if r a in .s 

 shtiwn in li.ir". 

 L'l'.i, 222, 



in ma n 



duct 



tin- vas dt t'rr- 

 -n>, in woman 

 the Miilh lian 

 ,lnct (li.-r. 225 

 /. /'/. x/'/f ) B4S- 



sumes the t'ui ic- 



tl'll of COlMllR-t- 



iiiLC awav the 

 OVa, whilf the 

 in r sonephric 

 luct (uy) and 

 the primitive 

 Uiilm-y i'/', /"/ 1 

 become ru.li 



l li c 



ir 



Fig. 225. Diagram to illustrate the development of the female sexual 

 organs of a Mammal from the indifferent fundament of the uro- 

 genital system, which is diagrammatic ally represented in fig. 219. 



The persistent parts of the uri^iniil fundament are nidi* 



tinuous line-;, the parts which undergo degeneration by .1 

 lines. Dotted lines are also employed to .-ition which 



the female sexua ! .itei -the completion of the descensus. 



iMiophoron ; pa, paioophnron ; l>y, h\ 



t. Fallopian tu)'- -mephrie duct : u!, uteru- 



vagina ; hi, ureter ; A6/, urinaiy Mai'der; hi>''. it-t ujipt-r tip, which 

 is continuous with the ligamentum \esieo-umbilieale medium; h,\ 

 -ili-.ilum \a','ii:i-: /.,. i-o\iinl ligament (inguinal 

 ligament of the primitive kidr.i-\ ) ; /', liuaincntuin ovarii. 



The letters*', ep', ei', lo' : . - ^itioiis of the organs after the 



mentary. 



The prone- 

 ff/n'fi.' duct in 



;til\;niT<l liuinan finl>ryo> of tin- tnnalt- >i-x is >till l-iinni>t ralilf :- 

 an incon>i ii-uoii> >trurtnn- in tin- l)i-o;nl li^ann-nt ami at the >ile 

 of the Utemsj in the adult it ha>. a> a rule, entirely' clisappt an d, 

 exeej.t il.- lerminal portion, whieh i^ eneh >e.l in the suhstance of 

 the m ck of the minis, wli re it i- disfcingmshable, hut only hy 

 ma: -MCtion>. a- an . \( r.ionlinai ily narro\\ t uhule (BEIGEL, 



H. DOHRN). In many Mammals, as in Ruminants aiul Swin< . 



