PLATE V. 



1—2. Schizoporella stormi, n. sp., The North Cape (1891). 



1. Zooecia, 52 /i. The avicularia are not quite correct, as the mandibles are more pointed than in the figure. 



2. Operculum, o. r, opercular rib, s3 /i. 



3 — 4. Schizoporella levinseni, n. sp., Kvsenangen LI, 90 m. 



3. Zooecia, B2 /i- 



4- Operculum with the proximal margin of the oral aperture, 83 /i. 

 5 — 7. Porella glaciata, Waters, Mehavn (1894). 



5. Zooecia, 62 /i. 



6. Operculum, 83 /i- 



7. Mandible, 26 %- 



8 — 11. Bhamphostomella scabra, Fabr., The Porsanger Fiord, 70 m. 



8. Zooecium, B2 /i- 



9. Oooecium, B2 /i. 



10. The back side of the zoarium, 52 /i. 



11. Mandible, 83 /i. 



12—13. Schizoporella hexagona, n. sp., Kvaenangeu II, 90 m. 

 \-l. Zooecia, 52 A. 



13. Operculum, 83 /i. 



14 — 15. Bhamphostomella plicate/-, Smitt, Nordkyn (1894). 



14. Ooecium with the upper part of the zooecium, 83 /i. The two small denticles, one on each side of the large one, are not illustrated. 



15. Mandible, M /i. 



16—17. Bhamphostomella radiatula, Hincks, The North Cape (1894). 



16. Ooecium and oral aperture, 83 /i. 



17. Part of the frontal wall of the zooecium. 83 /i. 



18—20. Bhamphostomella contigua, Smitt, The Ostnes Fiord, 50—70 m. 



18. Zooecium, 52 /i. 



19. Operculum, 83 /i. 



20. Mandible, 83 /i. 



21 — 22. Bhamphostomella costata, Lorenz, Tromso. 



21. Ooecium, 62 /i. 



22. Oral denticle, 8 ''/i. 



23 — 25. Schizoporella unicornis, Johnst., Glea (Rost). 



23. Zooecia, 52 /,. 



24. Operculum, 



J3 



ii' 



25. Mandible, 83 /,. 



26. Schizoporella linearis, Hass., Bognostrommen (Bergen), 30—50 m., operculum, 83 /i. 



27. Schizoporella unicornis, Johnst., The Hjelte Fiord (Bergen), operculum, 83 /i. 

 28—31. Phylactella peristomata, n. sp., Jokel Fiord II, 80 m. 



28. Zooecium with marginal pores, p. a. c, pores to the avicularian chamber, 62 /i. 



29. Zooecia, s, shield beneath the oral aperture, 52 /i. 



30. Mandible, 26 %. 

 51. Oral denticle, 83 /i. 



32. Schizoporella porifera, Smitt, Napstrommen (Lofoten), operculum, 83 A. 

 33 — 34. Schizoporella lineata, Nordg., Nordkyn (1894). 



33. Operculum, 83 /i. 



34. Oral aperture, 83 /i- 



35. Smittina trispinosa, Johnst., Balstad (Lofoten), operculum, 83 /i. 



