Plate II. 



Fig. I. Stomphia coccinea (O. F. Miill.). Nat. size. 



— 2. Cribrina spetsbergensis Carlgr. from Behring Sound. Nat. size. 



— 3. Actinostola spetsbergensis Carlgr. (= sibirica Carlgr.). Nat. size. 



— 4. — — — juv. 



— 5. Stomphia polaris (Dan.). Nat. size. 



— 6. Anthosactis jan mayeni Dan. from Baffin bay. Tvongitudinal section of the animal. Nat. size. 



— 7. — — — — Mouth and actinopharynx of the type-specimen. 



— 8. Stomphia coccinea (O. F. Miill.) pedal disc with conical off-shoot. 



— 9. Siphonactinopsis laevis Carlgr. Nat. size. 



— 10. Actinostola groenlandica Carlgr. Nat. size. 



— II, 12. Halcampoides purpurea Stud. (= H. abyssorum Dan.). Fig. 11. Mesentery seen from the side of 



the transverse muscles, fig. 12. Mesentery seen from the side of the longitudinal muscles. 



— 13. Peachia hastata Gosse. Transverse section through part of the aboral prolongation of the sipho- 



noglyphe showing the strongly ciliated boundary' tract between the peculiar prolongation of 

 the siphonoglyphe and the recurvated part (compare textfig. 132). 



— 14, 15. Halcampa arctica Carlgr. Longitudinal section of the ciliated and of the intermediate streaks 



(compare the text p. 122). 



