TREADWELL 



PLATE 7 



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11 



fei. 



12 



AHoHntCnSaltin 



Figures 1 to 4. Lumbrinereis japonica v. Marenzeller. Fig. 1 , anterior end X 10. Fig. 2, ninety- 

 eighth parapodium X 28. Fig. 3, maxilla X 23. Fig. 4, mandible X 35. 



Figures 5 to 10, Nicidion fusca-fasciata Treadwell. Fig. 5, anterior end X 10. Fig. 6, first para- 

 podium X 62. Fig. 7, tenth parapodium X 48. Fig. 8, posterior parapodium X 48 Fig. 

 9, maxilla X 48. Fig. 10, mandible X 48. 



Figures U and 12, Arabella duUa Treadwell. Fig. 11, anterior end X 20. Fig. 12, pygidiuin 

 X 23. 



Figures 13 to 15, Drilonereis lumbricus Treadwell. Fig. 13, dorsal view of anterior end X 10. Fig. 

 14, lateral view of anterior end X 10. Fig. 15, parapodium X 22.5. 



Figures 1G and 17, Drilonereis pane identata Treadwell. Fig. IG, anterior end X 20.5. Fig. 17, 

 parapodium X 220. 



