Plate 6S. 



Fins. ]. 2. ChriliiiKini prclncididiihs. new species (p. 527). 



1. Surface of the bilaniellar zoarium. X 20. The zooecia are large and their frontal has 



tremopores placed at the base of hexagonal areas. 



2. Interior of the zooecia. X 20, exhibiting the large fusiform dietellae of the lateral 



walls. 

 Middle Jacksonian : Near I-euuds Ferry, South Carolina. 

 Cat. No. G4173, U.S.N.M. 

 Figs. 3-5. Cheiloiiora gnindis, new species (p. o2S). 



3. The unilamellar zoarium, X 20. One apertura is closed by a calcareous lamina. 



4. Several zooecia, X 20, Illustrating the form of the apertura quite clearly. 



5. Basal side of zooecia, X 10. 



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

 Cat. No. 64174, TJ.S.N.M. 

 FiCiS. C-S. Chrilopora transrersoidcs, new species (p. 530). 



G. Ordinary zooecia of the bilaniellar zoarium. X 20, exhibiting the transverse apertura 



with the two median cardelles. 

 7. Surface of another zoarium, X 20. 



S. Interior of zooecia, X 20. The fusiform dietellae and the two condyles are shown. 

 Middle Jacksonian : Near Lenuds Ferry, South Carolina. 

 Cat. No. 64175, U.S.N.M. 

 Figs. 9-11. Cheiloponi xuiUanx. new species (p. 52S). 



9. Ordinary zooecia of the bilaniellar zoarium, X 20. Both the avicularia and the 

 separating line are quite prominent. 



10. Another zoarium, X 20. An ovicelled zooeciuin Is seen at the top. 



11. View of the interior of zooecia, X 20. The condyles of the apertura and the dietellae- 



like openings are visible. Several apertures are closed by a calcareous lamina. 

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

 Cat. No. 64176, TJ.S.N.M 

 p'Ki. 12. Cheiloponi sfriciocelhi. new species (p. 527). 



Surface of the plurilamellar zoarium, X 20, showing the narrow zooecia separated 

 by a salient thread. The three elongated openings belong to avicularian zooecia. 

 Middle Jacksonian: Near Lenuds Ferry, South Carolina. 

 Cat. No. 64177, U.S.N.M. 



