I20 



BULLETIN OF THE BUREAU OF FISHERIES. 



Fig, 76. — Hgg witli blastoderm in advaucx-d stage of cleavage. Fjc. 77. — Egfi showing advanced stage in difiereotiation of 



embryonic axis. 



Fic. 78.— Kgg showing embr>o with 32 to 34 somites, blastopore 

 closed. 



Fig. 79.— Kgg with advanced embryo. 



Fig. 80, — Newly hatched fish, actual length 4.5 mm, 

 BREVOORTIA TVRANNUS. 



