PLATE 13. 



Euphrosyne panamica Chamberlin. 



Figures 1-7. 



1. — Dorsal clavate seta, distal end, showing the lower lobe in frontal view seen by transmitted light, 



the other lobe in dotted outline. X 1022. 

 2. — Dorsal clavate seta, distal end, viewed from cleft edge. X 1022. 

 3. — Dorsal seta, distal end. X 277. 

 4. — Smaller dorsal seta. X 277. 

 5. — A ventral seta. X 277. 

 6. — A small ventral seta, distal end. X 277. 

 7. — A branchia from posterior region. X 62. 



Chloeia entypa Chajmbeklin. 



Figures 8, 9. 



8. — Distal end of dorsal seta of anterior region of body. X 277. 

 9. — Distal end of ventral seta of middle rerion. X 277. 



