ENLARGED PERICARDIUM IN LEBISTES EMBRYO 



195 



FlG. 6 



Sections through headregions of embryos (a-d cross sections, e horizontal section) 

 a) stage 3 (5th e.day) b) stage 4 (6th e.day) 

 c) stage 5 (lOth e.day) d) stage 6 (15th e.day) 

 e) stage 8 (25th-30th e.day) 



