195 



197 



Fip;s. 192 to 197 Dcvelopmont of tlic vitelline veins of Cryptobranchus alio- 

 gheuicnsis. All the figures are from living material and, with the exception of 

 the veins in figure 192, are drawn with the aid of a camera. X 5. 



Fig. 192 Stage 20. The stippled area indicates the lateral vascular band. 

 The right and left sides of the embryo are practically alike. 



Figs. 193 and 194 Right and left views of an embryo in Stage 22. 



Fig. 195 Lateral, slightly ventral, view of an embryo nearly ready to hatch. 



Fig. 196 Ventral view of an embryo nearly ready to hatch. 



Fig. 197 Ventral view of a larva about ten days after hatching. 



524 



