Plate 79. 



Fig. 1. KJciiUoncIla nirnnlis Cnuii niid Bassler, 1917 (p. 0171. (See also plate 78.) 

 Taugeutlal thiu seetiou, X 20, tbrougb scooecia near the surface. 

 Lower .Tacksouiau (Jloodys uiarl) : Jackisoii, Mississippi. 

 Cat. No. 64226, U.S.N.M. 



Fics. 2-14. KIcidioiK'Jlu lobatii. new .s]iefies (p. (ill)). 



2. Views, natural size, of the lobed, bifoliate, bifurcated zoarium. 



3. A larger niucb branched example, natural size. 



4. Young zooecia at the extremity of a frond, X 20. The formation of the ovicell may 



be noted. 



5. Portion of a frond, X 20, with a few scattered cumulate zooecia. 



6. Zooecia, X 20, with numerous small elliptical avicularia, some with pivot. 



7. A frond, X 20, with several interzooecial avicularia and numerous small avicularia 



with pivot. 

 S. Zooecia. X 20, with numerous broken ovieells. 

 9. Portion of an example. X 20, with an isolated group of cumulate zooecia. 



10. Part of a frond, X 10 Cumnlate zooecia are developed at the b.'ise, and the usual 



oriented zooecia, with numerous small avicularia, above. 



11. The basal part of the specimen shown in figure 10, X 20. 



12. Tangential thin section, X 20. showing the dense olocystal structure of the zooecia. 



13. Longitudinal section, X 20. 



14. View of the interior of zoecia. X 20. 



Middle Jacksonian (Castle Hayne limestone) : Wilmington, North Carolina. 

 Cat. No. 64227, U.S.N.M. 

 Figs. 1."i-1S. I^tirhopnriiia protecta Koschiuski, iss.l Tp. 62."i). 



15. Surface of the cupullform zoarium, X 20, with normal and ovicelled zooecia. 



16. Basal surface of a fragment, X 20. 



17. Lower side of zoarium, X 10. 



IS. Sketch of a longitudinal section, X 20. 



(I p. aiierture; pic, peristomice; ~. zoarium. 



Middle Jacksonian (Castle Hayne limestone) : Wilmington, North Carolina. 

 Cat. No. 6422S, U.S.N.M. 

 SO 



