Plate 12"). 



Pigs. 1-S. Plagloecia marginata, new species (p. 716). 



1. Fragments as usually found, natural sl/,e. 



2. Nearly complete bushy zoarium, natural size. 



3. Unilamellar zoarium, X 12. 



4. Fragment of a zoarium, X 12, in which the tubes are wrinkled transversel.v. 



5. Zoarium preserved by a lamella of Florklina, X 12. The long peristome of the tubes 



is completely preserved. 



6. Transverse section, X 25, showing the two lamellae. 



7. Surface of a bilamellar zoarium, X 25. 



8. Fragment, X 12, with ovicell. 



Middle Jacksonian : Lenuds Ferry and Eutaw Springs, South Carolina. 

 Cat. Nos. 65309, 65310, U.S.N.M. 

 Figs. 9-11. Desmeplagioecia dichotoma, new species (p. 710). 



9. Zoarium, X 6, preserving the very small protoecium. 



10. An ovicelled branch, X 12. 



11. Zoarium, X 2.5. ' ". 

 Upper Jacksonian (Ocala limestone"! : Old factory near Bainbridge, Georgia. 



Cat. No. 65311, U.S.N.M. 

 Figs. 12-15. Desmeplagioecia pUcata, new species (p. 720). 



12. Bilamellar fragment, X 6, with zoarial form of Reticulipora. The zone of growth 



is large. 



13. Opposite side of the same specimen, X 6, showing fascicles opposite. 

 Middle Jacksonian (Castle Hayne limestone) : Wilmington, North Carolina. 



Cat. No. 65313, U.S.N.M. 



14. Bilamellar fragment, X 12, with large zone of growth. 



15. Unilamellar zoarium, X 12. 



Middle Jacksonian : Near Lenuds Ferry, South Carolina. 

 Cat. No. 65314, U.S.N.M. 

 Figs. 16-19. Desmeplagioecia com,pressa, new species (p. 71!)). 



16. Young branch, X 12, without fascicles but with large zone of growth. 

 17, 18. Two branches showing the irregularity of the fascicles. X 12. 



19. Surface, X 25. 



Upper Jacksonian (Ocala limestone) : Chipola River, east of Marianna, .Jackson 

 County, Florida. 



Cat. No. 65315, U.S.N.M. 

 126 



