I'late II. 



Fig. 1. Mcliceritites sarissala Greg. Two Kenozooecia and a heterozooeeium. X 34. 



— 2. The same species. Zooecia with opercula. X 34. 



— 3. Tlie same species. A heterozooeeium witli mandible, surrounded bj' kenozooecia. X 34. 



— 4. Meliceritites angnlosa d'Orb. An ooecium. Villedieu. X 20. 



— 5. Tlie same species. Two lieterozooecia of wliich tlie distal one has been regenerated by means 



of a new zooecium, and tliereafter tlie remainder of the large aperture has been closed 

 (compare with figs. 7 and 9). Villedieu. x 20. 



— (). The same species. Regeneration of a heterozooeeium. The calcareous processes have not yet 



been formed distally to the new heterozooeeium. Villedieu. X 34. 



— 7. A new zooecium has been formed within an old heterozooeeium, and the rest of the aperture 



has been closed, but the processes corresponding to those seen in figs. 5 and 9 are here 

 very irregular. The zooecium is provided with a concave closure-plate which still has a 

 small opening. Villedieu. X 34. 



— 8. The same species. A heterozooeeium. Villedieu. X 34. 



— 9. Regeneration of a heterozooeeium. Villedieu. X 34. 



— 10. The same species. Fecamp. X 34. 



— 11. The same species. Couture. X 20. 



— 12. A zooecium in an old heterozooeeium. Villedieu. X 34. 



— 13. The same species Chatham. X 34. 



— 14. Two lieterozooecia from the same colon}', Couture. X 20. 



— 15. The same species. At the left side of the heterozooeeium is seen a zooid intermediate between 



a zooecium and a heterozooeeium. Fecamp. X 20. 



— 16. A heterozooeeium with mandible. X Villedieu. X 20. 



— 17. The same species. 



— 18. Another heterozooeeium with a mandible the distal part of which has been broken off. 



— 19. The same species Villedieu. X 34. 



— 20. The same species. Regeneration of a heterozooeeium. Bruille-Ponce. X 34. 



— 21. The same species. Villedieu. X 20. 



— 22. Regeneration of a heterozooeeium. Villedieu. X 34. 



— 23. Meliceritites yotliica, var. acuminata. X 34. 



— 24. The same species. A heterozooeeium. 



