Pl.ATK loT. 



Fics. 1, 2. Mecpiiorviu luhutu, new species (p. 78-H. 



1. Tbe iucrusting Piohu'ii'iiKi zo;uiuui, X lli, with uvicelled lobes. 



2. Enlarged portion of the same zoarium, X 25. The oeeiostonie is broken. 

 Vicksbtirgian : Near ("lailiorne, Monroe County. Alabama. 



Cat. No. 05.307, r.S..\.:\I. 

 Figs. 3. 4. McciinoecUi fiUihidd. new species (p. 7.34 i. 



3. Tlie inerusting- zoariuni, X 12, showing the glol>ular ovici4I. 



4. Portion of a zoarinni. X 2."i. 



Vickslinrgian : (hie mile nortli cit .Aliinrcieville. .\l;iliiiina. 

 Cat. No. 6.3398, U.S.N.JI. 

 Figs. 5-S. Microeria liirta. new siiecies i|'- 730 I. 



5. Fragments of the free unilamellar zoariuni. natural size. 

 6, 7. The same specimens, X 12. 



S. Tlie fragment shown in figure 7. X 25. exhiliiting tlie small ovicell. 

 Vieksburgian : West bank Conemili Itiver. Kscanibia <'(niiit,\, Alaliama. 

 Cat. No. 0-5399, I'.S.N.M. 

 Figs. 9-10. Oiicoiixdcriii fjiiiiKiiiccriutii. new species (p. 0'i2i. 

 9. The small bifurcated branches, natural size. 

 10, 11. Normal ovicelled luancli. X 12 and X 25. The fifth longitu<linal row of zooecia is 

 rarel.v visible on pliotographs because of the convexit.v of the branch. 



12. Dorsal of Ijrancli, X 12. with the longitudinal tubes visible. 



13. Bifurcated example, X 12. witli dissimilar branches. 



14. A normal liranch. X 25. 



Vieksburgian: One mile nortli of .Monrocvillc, Alaliama. 

 Cat. No. 0.5400, U.S.N.JI. 



15. Young branch, X 12. 



16. Dorsal of branch. X 12, witli transverse striations. 



Vieksburgian: West bank of Ciaicuch Kiver, Escambia County, Alaliama. 

 Cat. No. 6.5401, U.S.N.M. 

 Figs. 17-24. Onconsoecia rarians Reuss, 1N09 (p. (i'.ioi. 



17. Zoarial fragments, natural size. 



IS. 19. Branch with long peristomes, X 12 and X 25. 



20. Dorsal of branch, X 12, much wrinkled transversely. 



21. Branch, X 12. with very short peristome. Some of the tubes are closed by a cal- 



careous lamella. 



22. Longitudinal thin section, X 12. 



23. Transver.se section of an ordinary branch between the peristomes. 



24. Transverse section of a liranch with very convex dorsal, X 25. 

 Vieksburgian: West bank ('(incculi Uiver. Escambia <!'ouiity, .Vlabama. 



Cat. No. 6.5402, T\S.N.M. 

 Figs. 25. 20. Filisiiiirxii iihiniUiiUi. new species 111. 0971. 



25. 20. Fragment of the minute zoariuni. X 12 and X 25. 



Vieksburgian : One mile north of Jlonroeville, Alabama. 

 Cat. No. 6.5403. U.S.N.JI. 

 Fig. 27. Illixpnrsn liimriutn. new species ( |i. 702 i. 



Tlie thin rectilinear bi.serial zoariuni, X 25; with indistinct tubes. 

 Vieksburgian : West bank Conecuh River, Escambia County, .\labama. 

 Cat. No. 05404. U.S.N.IM. 

 158 



