Plate 161. 



XfiGS. 1. 2. I'liitoiiea rjiniilti, new species (p. 760). 



1. Ovicelled branch, X 12. 



2. Nonovicelled branch, X 25. 



Vicksburgian (Marianna limestone) : Salt Mountain, .T miles south of Jackson, 

 Alabama. 



Cat. No. 65441, U.S.N.M. 

 Figs. 3, 4. PUuronea fusifoniiis, new s|>ecies (p. 768). 



3. Anterior face, X 2.5, exhibiting the ovicell. 



4. Dorsal of the same specimen, X 2.5, showing the fusiform turgipores. 

 Vicksburgian (Warianna limestone) : Salt Mountain, .5 miles south of Jack.son, 



Alabama. 



Cat. No. 65442, U.S.N.M. 

 FcGS. 5-24. Idiiionea iriforata Canu, I'.ill (p. 782). 

 5, 6. Two groups of fragments, natural size. 



7. A branch with salient fa.scicles, X 12. An isolated axial tube occurs at the beginning 



of the fascicles. 



8. Another branch with .salient fascicles, X 12. 

 9, 10. Dorsals of two branches, X 12. 



11. An irregular branch, X 12. 



Vicksburgian (Marianna limestone) : West bank Conecuh River, Escambia County, 

 Alabama. 



Cat. No. 6.5443, U.S.N.M. 

 12, 13. An inferior branch, X 12, and a portion, X 25. 



14, 15. Irregular branches, X 12, with salient fascicles and the l.solated axial zooecia at 

 their extremity. 

 Vicksburgian i Marianna limestone) : Murder Creek, east of Castlebury, Alabama. 

 Cat. No. 65444, U.S.N.M. 



16. Fascicles broken and opposite, X 12. 



17. Dorsal, X 12. The last tube of each fascicle is turned backward. 

 IS. Lateral face of one of the low'er branches, X 12. 



19-21. Transverse sections, X 2.5. 



22. Median section in a lower branch without axial tube. X 25. 



23. Meridian .section parallel to the dorsal. X 2.5. 



24. Thin section of the frontal, X 100. 



Vicksburgian (Marianna limestone I: Salt Mounlain, 5 miles south of .Tackson, 

 Alabama. 



Cat. No. 6.5445, U.S.N.M. 

 162 



