Plate 53. 



Figs. 1-6. J/iiJiJO-ciii/onclhi tcf/cs Cnnu :ma l^assler. 1017 (p. 300). 



1. Dorsal side of the free, erect, nnilamellnr zoarium, X 20. 

 2, 3. Celluliferoiis side of two normal fragments, X 20. 



4. A si)ecimen, X 20, exhibiting formation of a new branch. 



5. A tri serial branch, X 20. 



6. Dorsal side of a triserial fragment, X 20. 



Upper Jacksonian (Ocala limestone) : Chipola River, east of Mnrinnna, Florida. 

 Cat. No. 62501, U.S.N.M. 

 Figs. 7, S. IIii)i)o~eii</ofirlI(i sr.i-drd'niiitd. new species (p. 402). 



7. The free cylindrical zoarium, X 20. 



8. Fragment of a more foliaceous zoarium, X 20. 



Upper Jacksonian (Ocala limestone) : Alachua, Florida. 

 Cat. No. 64099, U.S.N.M. 

 Figs. 0-11. Tliitpo-eiiposcUd mnryinntd, new species (p. 401). 



9. The free bilaniellar zoarium, X 20, with the zooecia separated b.y a salient thread. 



10. Another specimen, X 20. with the first zooeeium of a new branch 



11. View, X 20, showing the two lamellae separated by zooeciules. 

 Lower Jacksonian ( Moodys marl) : Jackson, Jlississippi. 



Cat. No. 64100, U.S.N.M. 

 Figs. 12-20. Hippozeuf/osclhi inflatn, new species (p. 401). 



12. The free bilaniellar zoarium, X 20. formed of young zooecia. These have a small 



distal tongue. 



13. Another small fragment, X 20. 



14. Zoarium, X 20, with very convex zooecia, illustrating the most frequent aspect of 



the species. 



15. Fragment, X 20, bearing a branch. 



16. Wide zooecia, X 20, enlarged by calcification. 



Middle Jacksonian: One-half mile southeast of Georgia Kaolin Company's Mine, 

 Twiggs County, Georgia. 

 Cat. No. 64101, U.S.N.M. 

 17, 19 Lateral face, X 20, with zooeciules intercalated between the two lamellae. 

 IS. Lateral view, X 20. The two lamellae are not separated by zooeciules. 



20. Base of a branch, X 20, view from below. The section of three primary zooecia 



is visible. 

 Middle Jacksonian; Baldock, Barnwell County, South Carolina. 

 Cat. No. 64102, U.S.N.M. 

 Figs. 21-25. HippozeiKjo-iclla urcKdta, new species (p. 400). 



21. Lateral view of the free bilamellar zoarium, X 20, exhibiting the zooecia and the 



small tongue quite clearly. 



22. Frontal view of normal zooecia, X 20. 



23. Another edge view, X 20 



24. Four zooecia, X 20, two of which are ovieelled. 



25. A triserial fragment. X 20, arising from a single zooeeium. 

 Lower Jacksonian (Moody marl): Jackson, Mississippi. 



Cat. No. 64103, U.S.N.M. 

 Fig. 26. Romnnrhcina li e.i-a grMm , new species (p. 407). 



Sin-face of the incrusting zoarium, X 20, exhibiting normal and ovieelled zooecia. 

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

 Cat. No. 04104, U.S.N.M. 

 54 



