„ 4 EXPÉDITION ANTARCTIQUE BELGE 



PL4TE IX 



Hornera antarctica sp. nov. Anterior surface. X 12. From N° 683. 



Dorsal surface. X 12. From N° 683. 

 Anterior surface. X 25. From N° 683. 

 Dorsal surface showing ovicell. X 25. From N° 6i3. 

 Anterior surface showing short branches. From N° 6i3, 



but a différent colon) r to the last. 

 X 2. Same spécimen as Fig. le. (ov) ovicells. 

 Natural size. From N° 61 3. 



Growing end before any of the pits are formed. X 25. 

 From N° 61 3. 

 ik. do do Transverse section showing stem with zocecial chambers 



eut across, and aîso the ovicellular chamber, from which apparentlv mar,y 

 embryos hâve been ejected, leaving the tissue lining the wall of the ovicell 

 contracted, but the embryo (fig. 1/) is in the middle of the particular tissue 

 and there are others at a, b, c. From N° 61 3. 



2. Hornera lichenoides Linn. < 25. From Franz-Josef Land, Lat. 77" 55' N. - Long. 



53° 16' E. 



3. Hornera frondiculata Lamx. X 25. From Naples. 

 4a. Entalophora proboscidea M. Ed. X 12. From N° 683. 

 4b. do do X 12. From N° 621. 

 5. Idmonea atlantica Forbes. X 12. From N° 608. 



6a. Stomatopora divergens sp. nov. X 25. From N° 5g6. 



6b. do do Showing two ovicells (ov). X 10. From X" 570. 



6c. do do Ovicell. X 25. 



ya. Stomatopora eburnea d'Orb. X 4- From N° 800. 



yb. do do X 25. 



8a. Stomatopora? incrassata Smitt. • 4. From X° 348. 



8b. do do X 12. From N° 348. 



ga. Lichenopora octoradiata sp. nov. x îo. From N° 277. 



gb, c. do do Another colon} 7 . Natural size. 

 gd. do do Latéral view. X 3. 



ioa. Stomatopora antarctica sp. nov. X i5. From N° 820. 



106. do do Another colony. Natural size. 



11. Diastopora solida sp. nov. X 25. From N° 373. 



