Plate 143. 



Figs. 1-11. FiliniKirsa fulhix, new species (p. 69.3). 



1, 2. Views, natural size, of tlie sliai-ply branrlied zoariuni. 



3. Frontal, X 12. 



4. Young branch, X 25, showing salient peristomes and numerous vacuoles. 

 .5. Frontal, X 2.5, with thick peristomes, large nervi and many vacuoles. 



6. Brauch with ovicell, X 12. 



7.- Frontal of branch, X 2.5, with small apertures. 



8. An old branch, X 25. The vacuoles are numerous and large. 



9. An example, X 25, with the apertures grouped transversely. Two large vacuoles are 



present. 



10. Normal posterior face, X 25. 



11. Dorsal with small nervi, X 25. 



12. Dorsal showing attenuated sulci, X 2.5. 



13. Tangential section of the frontal, X 25. 



14. Tangential section of the fi-ontal, X 100. 



15. Tangential section of the dorsal, X 2.5. 



16. Another tangential section of the dorsal, X 25. The obliquity of the vacuoles is 



visilile. 



17. Interior of the tubes. X 12, showing arrangement in lozenge shape areas. There is 



no central tube. 

 18-21. Cross sections of tlie branches, X 25. 



,22. Cross section of a branch at a bifurcation, X 25. 



23. Longitudinal section, X 25, showing the great complexity of the dorsal network. 



24. Another longitudinal section, X 25, In which the frontal vacuoles are visible. 



25. A third section, X 25, showing vacuoles of the dorsal (to the right). 



26. Longitudinal thin section, X 25. illustrating the lamellar and scaly wall structure. 

 Jacksonian ; Wilmington, North Carolina, li miles southeast of Lilly, Dooly Counly, 



Georgia (0. 4). and Rich Hill, Crawford County, Georgia (fig.s. 5, 7, 12). 

 Cat. No. 65241, 6.5242, 6.5312. U.S.N.iM. 

 144 



