50 



tlon of a hair of the pleopod with the shell of the egg wrap- 

 ed part of the way around it; n., pronucleus, prohahly the 

 male; v., vitelline memhrane. X425. 



Figs. 118 and 119 » Egg 4 hours old showing the pronuclei. 



Fig« 120 . Egg 6 hours old showing the pronuclei side hy 

 side in the center of the egg. 



IlKi 



121. Diagram of the ovary, the seminal receptacle 

 The latter turned out to one side so as to 



and oviduct. 



hring it in the same plane with the rest of the ovary; c, 

 portion of the seminal receptacle lined with chitin; g., 

 glandular portion of the seminal receptacle; o., opening 

 between the glandular and chitinous portion of the recept- 

 acle; od., oviduct. 



Fig. 122. Seminal receptacle at the time of Molting, 

 c, chitinous portion; g. , glandular portion. 



