Plate U. 



Page 

 Fig. i. Asbestopluma pennatula O. Schmidt. The largest specimen, the lateral branches are long 

 above but grow shorter downward; below the stalk-coating is seen; at the lower end 

 the sponge is broken off. In the axis embryos are seen, above in a single row, farther 

 down in a larger crowding. 1 / 1 44 



— 2. Asbestopluma pennatula O. Schmidt. A specimen with almost all the lateral branches 



long; below the stalk-coating is seen, it is rather thick. At the lower end the specimen 



is broken off. l / t 44 



3. Asbestopluma pennatula O. Schmidt. A small specimen with root; the stalk irregularly 



bent in an angular way, the stalk-coating is seen reaching about up to the ramigerous 

 part. V, •' 44 



4. Asbestopluma pennatula O. Schmidt. A somewhat twisted specimen with all the lateral 



branches short and showing a swelling with embryos; the lower part is wanting. \/ 1 . 44 



5. Asbestopluma pennatula O. Schmidt. A root-part. 7, 44 



— 6. Asbestopluma pennatula O. Schmidt. A fragment showing the proportion between the 

 length and thickness of the lateral branches. The canals of the axis are seen to shine 



through, ca. "' 1 



/• 



Asbestopluma bihamatifera Cart. A specimen with all the lateral branches long, viewed 

 in such a position that the longest lateral branches are turned to the sides; the stalk- 

 coating is seen reaching about up to the lateral branches. The specimen is broken off 

 below. V, 



44 



5i 



8. Asbestopluma bihamatifera Cart. A specimen with very short lateral branches; the speci- 



men is almost entire and show a long root-part, which is angularly bent. The stalk- 

 coating is seen about up to the lateral branches. ' /, 51 



9. Asbestopluma furcata n. sp. The largest specimen ; only one branch is entire, the others 



are broken off. Only the entire branch shows the small lateral branches. The upper 

 bounding of the stalk-coating is seen on most of the branches. r /i 54 



- 10. Asbestopluma furcata n. sp. At the base of the branch to the right a row of embryos is 



seen, in the branch to the left a cavity, in which two embryos have been situated, is 

 seen. Below the stalk-coating is wanting; at the very base the surface of attachment 

 is seen. */, 54 



— 11. Asbestopluma cupressiformis Cart. A specimen with indistinct, coalescing lateral branches; 



above a leaf-shaped part, '/i 58 



- 12. Asbestopluma cupressiformis Cart. A leaf-shaped specimen. I / l 58 



- 13. Asbestopluma cupressiformis Cart., on Astarte sp. ; a large specimen with more or less indi- 



stinct lateral branches; from the Kara-Sea. 7i 58 



- 14. Asbestopluma cupressiformis Cart. A small specimen with distinct, lateral branches arranged 



in a somewhat row-like manner. I j 1 58 



- 15. Asbestopluma lycopodium Levins. The lateral branches at the top coalesced to longitudinal 



keels. r /i 62 



— 16. Asbestopluma lycopodium Levins., on Pectiiiaria hyperborea ; from the Kara-Sea. '/, 62 



— 17. Asbestopluma lycopodium Levins. The upper end of a specimen, showing distinct longi- 



tudinal keels, ca. IO /i 62 



— 18. Asbestopluma hydra u. sp., on a little stone, ca. 7/, 66 



- 19. Asbestopluma hydra 11. sp., on a little stone. It is a specimen without branches, the upper 



surface of the end-swelling has projecting spicules and quite short protuberances, and 

 the swelling is slightly ribbed, ca. ?/i 66 



— 20. Asbestopluma infuiidibulum Levins. The calyx compressed, the edge a little damaged; 



from the Kara-Sea. I / I 68 



- 21. Asbestopluma infuiidibulum Levins. A smaller specimen with the calyx slightly compressed; 



from the Kara-Sea. 7i 68 



— 22. Asbestopluma comafa n. sp., on a sponge-spicule. ca. V, 72 



— 23. Asbestopluma comafa n. sp. The upper part of the sponge, ca. 2 °/j 72 



