no 



BULLETIN OF THE BUREAU OF FISHERIES. 



Fig. 50.— Egg with blastoderm of 4 cells. 



Fig. 51. — Egg with blastoderm in advanced stage of cleavage, 

 periblast (PB) differentiated. 



Fig. 53. — Egg with moderately advanced embryo. 



Fig. 53. — Egg with advanced embryo. 



Fig. 54-— Newly hatched fish, actual length 3.8 mm. 

 MERLUCaUS BILINEARIS. 



