THE BEHAVIOR OF A PARASITIC COPEPOD 



37 



tion of its free-swimming existence is very short, perhaps not 

 more than two days. Its nauplius and metanauplius stages are 

 passed within the egg sac of the mother, and the animal hatches 



Figure 1. Lernaeopoda edvvardsii. Dorsal view, free swimming stage, x 173.5 

 a. f. ^attachment filament, 

 ant. l=first antennae, 

 e =x-shaped eye. 

 y =yolk. 



