PLATE XXXIII. 



FIG. I. Eudistylia abbreviata sp. nov., p. 212. Inferior seta from collar fas- 

 cicle, nearly back view. 



2. Superior seta from the same fascicle, in profile. 



3. Crucigera zygophora (Johnson), p. 233. Posterior portion of a collar 



seta. 



4. Crucigera formosa sp. nov., p. 233. Posterior portion of a collar seta, 



about # view. 



5. Sabella leptalea sp. nov., p. 195. Avicular uncinus from thoracic torus. 



6. Pseudopotamilla oculifera (Leidy), p. 204. Pennoned seta from thor- 



acic torus. 



7. Schizobranchia dubia sp. nov., p. 208. Pennoned seta from thoracic 



torus. 



8. Parasabella macula fa sp. nov., p. 201. Seta from collar fascicle, in 



profile. 



9. Schizobranchia affinis sp. nov., p. 209. Inferior thoracic seta below 



collar fascicle, about % view. 



10. Eudistylia abbreviata sp. nov., p. 212. Seta from abdomen, back view. 



11. Schizobranchia affinis sp. nov., p. 209. Inferior seta from same fascicle 



as fig. 9, different position. 



12. Parasabella maculata sp. nov., p. 201. Inferior seta from fourth thor- 



acic segment, about tf view. 



13. Crucigera irregularis sp. nov., p. 234. Posterior portion of a collar 



seta. 



14. Sabella leptalea sp. nov., p. 195. Avicular uncinus from abdominal 



torus. 



15. Spirorbis spirillum (Linne") var. lucidus (Montagu) , p. 243. Calcareous 



plate from operculum. 



16. Eudistylia tenella sp. nov., p. 213. Pennoned seta from thoracic torus. 



17. Schizobranchia affinis sp. nov., p. 209. Avicular uncinus from thor- 



acic torus. 



18. Eudistylia abbreviata sp. nov., p. 212. Pennoned seta from thoracic 



torus. 



19. Eudistylia tenella sp. nov., p. 213. Avicular uncinus from abdominal 



torus. 



20. Sabella elegans sp. nov., p. 194. Avicular uncinus from thoracic 



torus. 



21. Avicular uncinus from abdominal torus. 



22. Schizobranchia nobilis sp. nov., p. 207. Avicular uncinus from thor- 



acic torus of a young specimen from Dutch Harbor. 



23. Schizobranchia affinis sp. nov., p. 209. Setafrom abdomen, back view. 



24. Eudistylia tenella sp. nov., p. 213. Inferior thoracic seta below collar. 



25. Eudistylia abbreviata sp. nov., p. 212. Inferior thoracic seta below 



collar. 



