Plate 107. 



Fig. 1. 'Tiihiiliiiorii niiihidjiiniivn, new .species (p. 75.3). 



The small free flabellate type specimen, X 12. 



Mitlwa.van (Clayton limestone) : One mile west of Fort Gaines, Georgia. 

 Cat. No. 6.1243, U.S.N.M. 

 Figs. 2-9. Pleuronea fltrosa, new species (p. 705). 



2. Group of fragments, natural size. 



3. Basal side of zoarium, X 12, with small, uarro\v tergopores, giving the fibrous aspect. 



4. Fragment .showing the lateral ovicell, X 12. 



5. Zoarium with smooth basal lamella. X 12, showing no tergopores. 



6. Celluliferous side of the zoarium with smooth basal lamella, X 12. 



7. Dorsal of zoarium provided with large tergopores, X 12. 



8, 9. Anterior side of a zoarium with tergopores, X 12, and a portion, X 25. 

 Mldwayan (Clayton limestone) : Luverne, Crenshaw County, Alabama. 

 Cat. No. 65244, U.S.N.M. 

 Figs. 10-18. Pleuronea alveolata, new species (p. 769). 



10. Fragments of the zoarium, natui'al size. 



11. Dorsal side of branch, X 12, exhibiting the ovicell. 



12. Basal side of a fragment, X 12, with large funnel shaped tergopores. 



13. Lateral face, X 12. 



14, 15. Side view of zoarium, X 12, and X 25. 



16. Longitudinal thin section, X 25. To the left are the zooecial tubes and to the right 



the tergopores. 



17. Tangential thin section of the dorsal, X 25, showing the orifice of the tergopores. 



18. Transverse section of a branch, X 12. 



Mldwayan (Clayton limestone) : Mabelvale, near Little Rock, Arkansas. 

 Cat. No. 6.5245, U.S.N.M. 

 Figs. 19-34. hhiioiiea tacta, new species (p. 771). 



19. Zoarial fragments, natural size. 



20, 21. A wide zoarium, showing 7 tubes to the fascicle, X 12 and X 25. 



22. Dorsal of zoarial fragment, X 12. 

 23, 24. A narrow zoarium with 2 or 3 tubes to the fascicle, X 12. 



Midwayau (Clayton limestone) : One mile west of Fort Gaines, Georgia. 

 Cat. No. 65246, U.S.N.M. 

 Fio. 25. Stninatopora opposita. new species (p. 6.54). 



The tyiae specimen, X 12, showing there is no dichotomous branching. 

 Mldwayan (Clayton limestone) : Mal>elvale, near Little Rock, Arkansas. 

 Cat. No. 6.5247, U.S.N.M. 

 Fig. 26. Stomntopora cxitiiia, new species (p. 655i. 



Zoarium, X 25, showing the characteristic niirro\\' fusiforiu branches. 

 Midwayau (Clayton limestone) : Well at Bnnididge, Alabama. 

 Cat. No. 65248, U.S.N.M. 

 108 



