Plate 128. 



Figs. 1, 2. 



Figs. 3-7. 

 3. 



Mecijnoccki iiiariniceUu. new species (p. 729). 

 The cyliudrical type-specimen, natural size and X 12, showing tlie eliaract eristic 



large tulies and thick peristomes. 

 Upper Jacksonian (Ocala limestone) : Ahu-hua, Florida. 



Cat. No. 65320, U.S.N.M. 

 ilcciinoccia p(iiTitul)a, new species (p. 7;j.'!K 

 Fragments of the narrow cylindrical zoarium, natural size. 

 4, 5. A fragment showing the narrowed hase of a lii-anch at the bifurcation, X 12 and X 25. 

 6, 7. Two fragments with small tubes, X 12. 



Vicksburgian (Marianna limeslone) : One nnlc north of JFonroeville, Alaliama. 

 Cat. No. 05321, U.S.N.M. 

 Figs. S-13. Sinropora iiiajiixcuhi, new species (p. 075). 



S. Three fragments, natural size. 

 9, 10, 11. Views of the same specimens, X 12. 



12. Longitudinal thin section, X 25. 



13. Transverse thin section, X 25, showing the irregularity of the internal walls. 

 Middle Jacksonian : Near Lenuds Ferry, South Carolina. 



Cat. No. 6.5322, U.S.N.M. 

 Figs. 11-lS. Microccin rihrio, new species (p. 7.30). 



14, 15. Completely developed zoarium with seipentiform tubes, X 12 and X 25. 



Vicksburgian (Marianna limestone): Salt Mountain, 5 miles south of Jackson, 

 Alabama. 



Cat. No. 65486, U.S.N.M. 

 Toungovicelled zoarla, X 12 aud a portion X 25. The tubes are rectilinear. 

 Upper Jacksonian (Ocala limestone) : Chipola River, east of Marianna, Jackson 

 County, Florida. 



Cat. No. 65323, U.S.N.M. 

 Figs. 19, 20. MkroccUi flaheUata. new species p. 735). 



The flabellate incrusting ovicelled zoarium, X 12 and X 25. 

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

 Cat. No. 65324, U.S.N.M. 

 55899— 20— Bull. 106, Vol. 2 17 129 



16, 17, IS. 



