jlex.-SJ. CYCLOSTOMATOUS BRYOZOA CANU AND BASSLER. 151 



Figs. 6-9. Jieteporidea subramosa, new species page 133. 



6. Frngments of the free, branched zoarium, natural size. 



7. Celluliferous side, X 12, showing the zooecial tubes and the numerous 



intervening raesopores. 



8. Dorsal side, X 12, with vacuoles. 



9. Portion of fig. 7, X 25. 



Cretaceous (Campanian) : Meudon, near Paris, France. 

 Figs. 10-15. Reteporidea collardeti, new species page 132. 



10. Small fragments of the reticulate zoarium, natural size. 



11. Celluliferous face, X 12, with the peristomes in oblique rows. 



12. Another fragment, X 12, with peristomes in transverse rows. 



13. An ovicelled branch, X 12, showing ovicell perforated by the tubes. 



14. Celluliferous (anterior) face, X 25. 



15. Posterior side of zoarium, X 12, illustrating vacuoles. 

 Cretaceous (Campanian) : Meudon near Paris, France. 



Figs. 16, 17. Lciosoecia occlusa, new species page 100. 



The free claviform zoarium, natural size and X 12. An ovicell (broken) 



is present near the top. 

 Cretaceous (Cenomaniau) : Essen, Germany. 



Plate 23. 



Figs. 1-0. Osciiliijora truncuta Goldfuss, 1827 page 57. 



1. Two fragments, natural size. 



2. Celluliferous side, X 5, showing pinnules. 



3. Lateral view of same, X 15. 



4. An ovicell bearing branch, natural size and X 5, described by Hage- 



now as Coelophyma laevis. 



5. Dorsal of branch, X 15, exhibiting the nematopores. (Figs. 1-5, after 



Hagenow, 1851.) 



6. A fragment bearing the ovicell at the bifurcation of the branch. 

 Cretaceous (Maastrichtian) : Maastricht, Holland. 



Fig. 7. Oscnlipora repens Hagenow, 1851 page 57. 



Bifurcated fragment showing the ovicell on the anterior side. 

 Cretaceous (Maastrichtian) : Royan, France. 



Figs. 8, 9. Osculipora houzeaui Pergens, 1894 page 57. 



Frontal and dorsal views of a zoarium, X 13, the latter showing 



the ovicell (after Pergens, 1894). 

 Cretaceous (Maastrichtian) : Faquemont, Holland. 

 Figs. 10, 11. Osculipora royana D'Orbigny, 1850 i page 58. 



10. A fragment, X 12, showing the smooth, globular, lateral ovicell. 



11. Anterior face of a fragment with two lateral ovicells, X 12. 

 Cretaceous (Maastrichtian) : Royan (Charente inferieure), France. 



Figs. 12-16. Plethoporella ramulosa D'Orbigny, 1853 page 56. 



12. An incomplete zoarium, natural size. 



13. Surface enlarged somewhat. 



14. A longitudinal section, enlarged (figs. 12-14, after D'Orbigny, 1853), 



15. Surface, X 12, preserving an ovicell. 



16. A broken ovicell, X 12, showing the interior. 

 Cretaceous (Maastrichtian) : Royan, France. 



Fig. 17. Plethopora malmi Hennig, 1894. 



A longitudinal section, X 9, showing the zooecia («) and the strength- 

 ening pores U) (after Hennig, 1894). 

 Cretaceous of Sweden. 

 20107— 22— Proc. N. M. vol. 61 41 



