Plate IGO. 



Figs. 1-4. Fillsparsa la.rata. new species (p. 007). 



1. Zoarial fragments, natural size. 



2. Claviforin Ijraucli, X 2.5. 



Vick.sburgian (JIarianiia liiiiestdiiel : \\'est liaiili Cciucculi Kiver. Kscauiliia Cinmty, 



AJabama. 



Cat. No. 65411, U.S.N.M. 



3. Olavifonii brancli, X 25, much enlarged at tlie t>ifurcation. 



4. Dorsal of the same specimen, X 25. 



Vicksburgian (XIarianna limestone): JUirder Creek, Kast of Castlelmr.v, (^oneciili 

 County, Alabama. 



Cat. No. 65412, U.S.N.M. 

 Figs. 5-16. Partretocycloccia criUs, new species ( p. S34). 



5, 6. Two groups of fragments of the hollow zoarium, natural size. 



7. Small ovicelled specimen, X 12. The ovicell is pierced by the tubes accompanied by 



mesopores. 



8. Ovicell of a large .specimen, X 12. 



9. Surface of a branch, X 25, in which tlie peristomes are salient, and the mesopores 



are small. 



10. Another branch, X 25, with somewhat larger mesopores. 



11. Another branch, X 2.5. At the bifurcation, there are mesopores only. 



12. A superior lamella of a branch with polygonal mesopores, X 25. 



13. Longitudinal thin section, X 12, in a specimen alternately hollow and solid. The 



mesopores are very long at the liifurcations. 



14. Longitudinal thin section. X 25. Tlie mesopores are distributed over almost llie whole 



length of the tube. 



15. Transverse thin section, X 25, showing the large central cavity. 



16. Tangential thin section, X 50. 



Vick.sburgian ( Marianna limestone) : One mile north of .Monrocvillc, Alabama. 

 Cat. No. 65413, U.S.N.M. 

 55899— 20— Bull. lllO, Vol. 2 21 l^^ 



