40 



POLYCH^ETA 



5. Lateral view of part of body of Eunice. Parapodia, with their setae, cirri and gills. 



6. Parapodium of Eunice mounted as section. 



7. Dorsal view of Hermione or Aphrodite. Elytra ; setse ; cirri ; head, with tentacles and cirri. 

 [In Aphrodite the elytra are concealed by a felt-work of fine hairs.] 



