PLATE IV 



Fi"-. 1—2. Phyxophom horcalis, M. Sårs, Moskenstrømmen, m., Va 1899. 

 „ 1. Tentacular knob, "Vi. 



„ 2. Older tentacular knob, "Vi- 



„ 3 — 5. Esckara mofhmsis. n, sp., Moskenstrømmcn II, 15u ni. 



„ 3. Zooecium, 'Vi- 



„ 4. Ooeciuin, "/j. 



„ 5. Operculum, "Vi- 



„ 6 — 7. Schizoporella mndida, Smitt, Tlie Malanfjeii Fiord, 100 -200 ui. 



„ 6. Zooecium, "/i. 



„ 7. Operculum, "Vi- 



„ 8 — 11. Porella prohosculva. Hincks, The Nortii Cape. 



„ 8. Zooecium, lateral view. a. a = avieular aperture, r. p = rosette-plate, h = hole, 'Vi- 



„ 9. Mandible, "Vi- 



„ 10. Operculum, "Vi- 



., 11. Oral aperture, the condyles are seen, "Vi- 



„ 12. Palmicellaria slenei var. tridens, Busk, Radosund, a little north of Bergen, 100 m.. operculum, "Vi- 



„ 13. Pcdmieellaria shenei var. hicornis, Busk, Jøkel Fiord III, 100 m., operculum, "'/i. 



„ 14 — 15. Moiioporella spinulifera, Hincks, Hammerfest. 



„ 14. Ooecium and oral aperture, ^Vi- 



„ 15. Zooecium, lateral view,. °Vi- 



„ 16 — 17. SchizoporelJa retiadato-pwurUda, Hincks, The Porsanger Fiord. 200 m. 



„ 16. Ooecium with the upper part of the zooecium, 'Vi- 



„ 17. Operculum, "Vi- 



„ 18 — 20 b. Porella pro^iinqua, Smitt, Nordkap (1894). 



„ 18. Zooecia, lateral view, a. u, aviculai'iau umbo, o, ooeciuin, r. p, I'osette-plate, =Vi- 



„ 19. The back side of the zoarium, ^Vi- 



„ 20 a. Operculum, "V,. 



„ 20 b. Ooecium, "Vi- 



„ 21 — 23. Porella ■princrpK, Nohman, Mehavn (1894). 



„ 21. Operculum, "Vi- 



„ 22. Mandible, "V,. 



„ 23. The under side of the front wall of the zooecium, showing the aviculariaii chamber la. c) and the lateral channels (c h), 



„ 24. Smittina sniitti, Kibchenp., The Øgs Fiord I, loO m., ooecium and the uppei- part of the zooecium. ^Vi- 



„ 25—26. Escharella labiata, Boeck, Svolvær, on coal. 



„ 25. Zooecium, lateral view, "Vi- 



„ 26. Base of the ooecium, "Vi. 



„ 27. Oral denticle of Etfcharella immersa, Flem., Moskenstrømmen, "Vi. 



„ 28. — : — — rcntricom, Hass., Hammerfest, "Vi- 



„ 29. — :— — laqiæata, Noem., Hammerfest, "Vi. 



,, 30. — :— — abi/ssicola, Norm., The Bømmel Fioi'd, "V,. 



„ 31. — : — — labiata, Boeck, Svolvær, "Vi- 



„ 32-35. Etscharu nordlandica , n. sp.. The Kvænang Fiord, 90 m. 



„ 32. .\ young zooecium and ooecium, ■•'■|^. 



„ 33. Oral aperture of the zooeciuin, c, coudylus, i-, opercular rib, "'/i. 



„ 34. Ooecium, "Vi- 



„ 35. Operculum, "Vi- 



„ 36 — 38. Smittina majuscula, Smitt, Tlie Porsanger I'^iord, 90 m. 



„ 3(). Zooecium and ooecium, ^Vi- 



„ 37. Operculum, "Vi- 



„ 38. Mandible, "Vi- 



