Plate 94 



A-F. Mamillopora cupula Smitt, 1873. A. Zoarium, natural size. B. Ordi- 

 nary and ovicelled zooecia and avicularia. (A, B, after Smitt, 1873.) 

 C. Portion of a zoarium, X 20, showing the central zooecia. D. Group 

 of ovicelled zooecia, X20. E. Inferior face, X20, with sporadic 

 avicularia. F. Operculum, X85. 



G-K. Anoteropora simplex Kirkpatrick, 1890. G. Zoarium, natural size. II. 

 Ordinary and ovicelled zooecia, X25. I. Operculum of an ordinary 

 zooecium, X60. J. Operculum of ovicelled zooecium, X60. K. Avi- 

 cularian mandible, X100. (A-E, after Kirkpatrick, 1890.) 



L-N. Anoteropora magnicapitata Canu and Bassler, 1927. L. Operculum, X85. 

 M. Portion of a discoid colony showing some large ovicells, X20. N. 

 Inner side of zoarium, X20. 

 O. Frurionella parvipora Canu and Bassler, 1927. Surface of the bilamellar 

 zoarium, X20. Cretaceous of Tennessee. 



P, Q. Foveolaria elliptica Busk. P. Longitudinal section showing an ovicell 

 and an avicularium. Q. An articulated operculum (after Levinsen, 

 1909). 



(661) 



