Plate 101. 



Figs. 1-11. EleklioneUtt verrucosa, now species (p. 621). (See also plate 102.) 



1. Several fragments of tlie bifoliate zoarium, natural size, consisting mainly of oriented 



zooecia. 



2. A group of more robust fragments, natural size, composed of layer upon layer of 



cumulate zooecia. 



3. A specimen shown in figure 1, X 10. This example is bilamellar and exhibits the 



oriented zooecia mainly. 



4. More magnified view of the same, X 20. 



5. Surface of the second specimen shown in figure 1, X 20. The oriented zooecia bear 



numerous small avicularia with pivot and are ovicelled. 



6. The third specimen of figure 1, X 10. A layer of cumulate zooecia has started 



development over the oriented zooecia. 



7. Surface of the same specimen, X 20, showing an incomplete zooecium. 



S. Surface of another zoarium, X 20, illustrating cumulate zooecia and small avicularia 

 with pivot. 

 9, 10. Portions of two zoaria, X 20, with large interzooecial avicularia as well as the small 

 form. 

 11. Cross section, X 10, of the bilamellar zoarium composed only of oriented zooecia. 



Vicksburgian ("Chimney rock" of Marianna limestone): 1 mile north of Monroe- 

 ville, Alabama. 



Cat. No. 64327, U.S.N.M. 

 102 



