rLATE 10. 



Figs, l-'.l. Ilolnjiiirrllii (irdiiiiJami. new species (p. (iiiT). 



1. Two examples of the siinill globular zoariiim, natumi size. 



2. Surface of zooecia, X 2(). sliowiug the ccaivex frontal with sratlereil areolar pores. 



3. Another surface, X 20, with several ovicelled zooecia. 



4. Well pre.served zooecia, X 20, several of which have the ovicell intact. The frontal 



of liolh ovicell aud zooecia is granular. 



5. Lower side of zoarium, X 20. The zooecia are t)rienteil and their walls are com- 



posed of several calcareous layers. 

 6. Interior of zooecia, X 20. The apertura is oblique aud without cardelles, and the 

 ;ireolae are visible. 



7. Zooecia, X 20, with interzooecial avicularia having uo pivot. 



8. .Surface of zoarium, X 20, e.xliibitiug zooecia in which the granular plenrocyst 



(with are<jlae) may be separated from the subj.-iceut, suxioth oloeyst. 



9. Celluliferons side of a zoarium, X ,5. 

 Claiboruian (Gosport sand) : Claiborne, .\hibani.-i. 



C-it. No. U3S5S, T'.S.X.iM. 

 Figs. 10-1."i. IlnhitxireJhi orhiriilifcni. new species, (p. tiO.ji. 



10. The small massive zoarium, natural size. 



11. Surface. X 20. showing the distinct supertici.il zooecia and the less distinct deep 



zooecia. 



12. Portion of another zoarium, X 20, in which the frontal of the superficial zooecia 



jireserves a few areolae. 



13. A small i)ortiou of a t,-ingential thin section, X UMi. The olocystal structure of the 



w,-i II Is shown. 



14. Another portion, X 100, passing through the frontal and showing its olocystal 



nature. 

 l."p. T;ingential thin section, X 20, exhibiting [lores between the zooecia. These are the 

 cavities of the beak bearing the avicuhirium. 

 Claiboruian (Gosport sand l : Claiborne, .Mabama. 

 Cat. Xo. 638.59, U.S.N.Jl. 

 Fig. 16. XihruceUlim cuiiillaria Canu .-ind Itassler, 11117 (p. IKh. 



The incrustiug tyjie zoarium, X 2<l, exliibiting tl)e region of tlie ancestrula and ni'igli- 



boriug zooecia. 

 Claiborniau (Coolv Jlouutain formation) : Moseley's Ferry, Caldwell County, Texas. 

 Cat. No. 62572, II.S.N.M. 

 Figs 17-22. Klfiilloiiclld pfirasiticd. new sptn-ies (p. 019). 



17. The massive zoarium, natural size. Bilamellar fronds are given forth from this 



base. 



18. Surface, X 20, showing interzooecial avicularia with pivot and rounded beak: they 



are as large as the zooecia. 



19. Lower side of zoarium, X 20. 



20,21. Portions of two bilamellar fronds, X 20, where the axial zooecia are oriented. 



22. Basal part of the zoarium, X 20. wliere cumulate zooe<na are best developed. 

 Numerous small avicularia with pivot and a lesser number of the large inter- 

 zooecial avicularia are visible. 

 Lower .Tacksonian : Three and one-half miles southeast of Shell Bluff post oftice, 

 Georgia. 



Cat. No. G.3860, U.S.N.M. 



C.5899— 20— Bull. 106 3 1'^ 



