534 



IIIL AMhllK A\ \.\TURALIST 



[Vol. LV 



transformation l)egins at one pole and jji'oceeds contin- 

 uously to tho other. Fig. 7 shows a longitudinal section 

 of such a lit'nna])]iroditic gonad. The small testicular 

 part at tlic postci ioi' end could easily be distinguished 

 macroscopic.ilix . The lit'th sex cord is almost a nor- 

 mal mall" otic. Xunicrous spermatogonia are scattered 

 throiiu'lioiil. Tlic sli!>, whicli arc soon, represent the be- 

 ginnings of the spcitiintic tubes. At {(i) a bridge of tissue 



is seen, i-oiiiicrtitiii' thr cord wiMi \vii;it 1- left of the female 

 germinal cpitliciiiun. In the fmii'th cord the transforma- 

 tion has not pi-oofcssed as far as in the tifth. The center 



