PLATE 33. 



Nereis leuca Ciiambeklin. 



Figures 1-6. 



1. — .\nterior end, dorsal view. X 45. 



2. — Fourtii piirapodium, epitokous male. X 63. 



3. — Si.Ktli parapodium, epitokous male. X 63. 



4. — Parapodium from middle region of posterior division of epitokous male. X 63. 



5. — Notopodial seta, distal end, from sixth parapodium. X 1075. 



6. — Neuropodial homogomph with tip of the shorter tj-pe from fourth parapodium. X 1075. 



Nereis caenocirrus Chamberlin. 



Figures 7, 8. 



7. — Falcate seta from fourth parapodium. X 1075. 



8. — Cirrus of thirtieth parapodium, dorsal view (the papillae are on the anterior side). X 63. 



