Plate 162. 



Figs. 1-3. Idinunca (/randiora, new spet-ies (p. 7S3). 



Views, nalural size. X 12, and X 2.^, of tlie zoarium sliowing the lai'se apertures. 

 Mclvslnirf;ian (Marianna limestone) : One mile north of Monroeville, Alabama. 

 Cat. No. 65472, U.S.N.M. 

 Figs. -1-7. Lirhcnoitora prolifera Kenss, 1S47 (p. s-JO). 



4. A zoarium, X 12, composed of two superposed disks. 

 .5, 6. Basal and lateral views of the same specimen, X 12. 



7. A simple discoid zoarium, X 12. 



Vicksburfiian (Marianna limestone) : Salt MdUnl.-iin, ."i miles scmili nf .Tackson, 

 Alabama. 



Cat. No. 65473, U.S.N.M. 

 Figs. 8-20. Uchenopnra goUlfussi Reuss, 1864 (p. S21). 



8. A group of the simple diseoidal zoaria, natural size. 



9-12. Frontal views, X 6, showing various aspects of the zoarium. 



13. Lateral view of zoarium, X 6. 



14. Dorsal side, X 6. 



15. Median fracture, X 25, showing the absence of the spinules from the cancelli. 



16. Normal zoarium, X 12, with a small central area and showing the most fre(inent 



aspect. 

 17, 18. Aspect of the zooecia on the basal lamella after its removal, X 6. 



19. Longitudinal (median) thin section, X 25, through the fascicles. The two directing 



zooecia issue from the ancestrula and have a smaller diameter. 



20. Another longitudinal thin section, X 25. The cancelli are superposed and ramified. 

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



Cat. No. 65474, U.S.N.M. 

 Fig. 21. Stomatopora minuta, new species (p. 656). 

 The type specimen, X 25. 



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

 Cat. No. 65475, U.S.N.M. 

 163 



