71 



prolonged to three rather short spines, and a central less deeply colou- 

 red nucleus. The chromosoma could not be distinguished either m 

 stained or in unstained preparations. 



Passing now to the posterior ovarial part we find the same ger- 

 minal hand extending directly into this part, and producing, by diffe- 



rs 



s~ 4 



Fig. 



Fig.2a, 



or: 





T.d,~ 



;0.p. 



Fig. 1. Testis of Gebia major seen from above. Natural Size. t.p. testicular 

 part; o.p. ovarial part; ». d. vasa deferentia. 



Fi- 2 Longitudinal Section through a part of the Testis, where the testicular 

 part passes into the ovarial; t.p. testicular part ; o.p. ovarial part; g.b. germinal 

 band; sp. Spermatozoa; ov. ovum. 1/1 X Seibert. q e ;wt 



Fig. 2«. Ripe Spermatozoa seen from above and from side. I/Vll X beioeit. 



renciation of their cells, [the egg cells, which project out in form of 

 lateral sacs as in the testicular part. The eggs are also found at diffe- 

 rent stages of development, some producing even a vast] quantity of 



yolk granules. 



Owing to the large size of eggsland consequently of the lateral 

 saccular protuberances, the germinal band comes here to lie in the 



