ECONOMIC RELATIONS, ANATOMY, AND LIFE HISTORY OF GENUS LERN^A. 183 



flattened ventrally, and marked with dark-colored longitudinal stripes. The eye was 

 bright red in color. 



A female L. variabilis was obtained from a bluegill, and on examining her egg 

 strings the eggs were seen to be ellipsoidal instead of spherical, but showed no pigment, 

 as is the case with most copepod eggs when ready to hatch. On the strength of the 



Fig. I. — The newly hatched naupUus of L, variabilis. 



difference in shape, however, this female was placed at night in a suitable aquarium, 

 and the next morning all the eggs were hatched. 



Some were examined and the others kept, and they molted during the second 

 night into metanauplii and during the third day into the first copepodid stage, similar 

 in all respects to the one obtained from the gills of the gar. With the stages thus 



