48 ESTHER F. BYRNES. 



EXPLANATION OF PLATE III. 

 Cyclops signatus var. coronalus. (Cyclops fuscus Jurine.) 



FIG. i. The terminal segment of the inner ramus of the fourth swimming foot 

 of an adult female showing the characteristically large distal seta on the inner 

 margin. 



FIGS. 2, 3, 4 and 5. The fourth swimming feet of young cyclops in the sixth 

 stage of the metamorphosis, showing the distal seta of the young like the distal 

 seta of the parent. 



