FISHERY BULLETIN: VOL. 72. NO. 2 



Figure IB. — Early middle stage egg. Ventral view of embryo. 



The omaka egg is pelagic, clear, and spherical 

 with a single oil droplet at the vegetative 

 pole. At the time of collection the eggs were 

 in the early blastodisc stage. 

 Oil globule: 

 Diameter in live egg: 190-200 ^. 

 Diameter in preserved egg: 176-192 /j. 

 Positioned at the vegetative pole, the oil 

 globule was almost centered on the polar axis 

 of the developing blastodisc (Figure lA) 



Figure ID. — Dorsal view of advanced middle stage egg. Pigment 

 on oil globule omitted. 



and later between the head and tail bud of the 

 early embryo. At the time of blastopore 

 closure, the oil globule was situated slightly 

 off-center and closer to the tail end of the 

 developing embryo. The blastopore closed 

 between the oil globule and the tail end of 

 the embryo. 

 Perivitelline space: 

 Size range: 26 ± 4 /j. 



Figure IC. — Ventro-lateral view of advanced middle stage egg, 

 showing oil globule pigmentation. 



Figure IE. — Lateral view of early late-stage egg. 



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