points, i rocess of section i . . 



Lates t,tion. 



From this time on, it is not 

 possible to folloa i . ut son e figures 



be introduced to s] Durse o. ment, 



. VI., is probably a dec , form 



72, PI. IV. Thea dc strat- 



um", the cells are loosely sca:ter' nt- 



ation cavity. The periblast is quite distinct, free from 



. -. ist across the border 



from one of t] Lei is a cell, in and :e a cell 



lies i ression ii Lblast , 



Fig. is i -•- ,-. , cells fairly 



closely crowded in 1 cavity , an; 



periblast out of . . ar - - - ito which 



lose themselves. At one or two places, the peri- 

 blast is reduced tc ickness of a c 



ioring sections nuclei abound in it. In the right 

 outer periblast tv/o tripolar spindles arc found.. These 

 have been noticed occasionally in other sections. 



,83 is trie typical Teleost late lens- shaped blasto- 

 It closely resembles Pusori's ( '30) Fig, 9 for 



