552 
BULLETIN OF THE BUREAU OF FISHERIES 
The development is rapid at first. Eggs fertilized at 10:30 o’clock in the morning 
and held at a temperature close to 27° C., for example, reached the 2-cell stage in 
Figure 32.- 
Figure 33.- 
Figure 34.- 
Figure 35.- 
Figure 36.- 
Figure 37.- 
Figure 38.- 
Figure 39.- 
-Gobiosoma bosci. 
-Gobiosoma bosci. 
-Gobiosoma bosci. 
-Gobiosoma bosci. 
-Gobiosoma bosci. 
-Gobiosoma bosci. 
-Gobiosoma bosci. 
-Gobiosoma bosci. 
From mature unfertilized egg. (Drawn by Effie B. Decker. After Kuntz.) 
From egg with fully developed blastodisc, BD. (Drawn by Effie B. Decker. After Kuntz.) 
From egg with blastoderm of 2 cells. (Drawn by Effie B. Decker. After Kuntz.) 
From egg with blastoderm of 4 cells. (Drawn by Effie B. Decker. After Kuntz.) 
From egg with blastoderm of many cells. (Drawn by Effie B. Decker. After Kuntz.) 
From egg with recently differentiated embryo. (Drawn by Effie B. Decker. After Kuntz.) 
From egg with well-formed embryo. (Drawn by Effie B. Decker. After Kuntz.) 
From egg with large embryo. (Drawn by Effie B. Decker. After Kuntz.) 
1 % hours, the 4-cell stage in 1 % hours, and the 8- and 16-cell stages (for there were 
some eggs in each stage) were reached in about 2 % hours. In about 22 hours, at a 
temperature varying from 26° to 27° C., the embryo had become well formed. There- 
