Xea: Species of Fossil)< from Ohio. 23? 



F. hasaltica, Goldf. 



F. Gothlandica, Lamarck. (?) 



F. JiemispJiertca,Yai\d. and Shnmard. 



F. invaginata, Nicli. 



F. ■pleurodictyoides , Nicli, 



F. polymoipha, Groldf. ? 



F. turhinata, Billings. 

 MiCHELiNA, De Koninck. 



M. convexa, Emmons. 



M. maxiina, Troost. 

 Emmois^sia, Ed. and Haime. 



E. Emmonsi, Hall. 

 Teachypora, Ed. and Haime. 



T. elegantuld, Billings. 

 AuLOPORA, Goldfuss. 



A. coriiuta, Bill. 



A. fiUformis, Bill. 



A. tuhceformis, Gold.? 

 SyRlNGOPORA, Goldf. ? 



S. Hesingeri, Bill. 



S. Macliirei, Bill. 



S. tabulata, Ed. and Haime. 

 EuiDOPHYLLUM, Ed. and Haime. 



E. Simcoense, Bill. 



E. strictum, E. and H. 



E. Verneuilanum, E. and H. 

 Stylastrea, Lonsdale. 



S. Aimae, Whitf. 

 Zaphrentis, Rafinesque. 



Z. cornicula, Ed. and H. 



Z. Edwardsi, Nicli. 



Z. gigantea, Ed. and H. 



Z. 2)rolifica, Bill. 



Z. Wortlieni, Nicli. 

 Cyathophyllum, Goldf. 



C. riigosum, Hall. 



C. Zenkeri, Bill. 

 Hadriophyllum, Ed. and H. 



H. D'Orhignyi, Ed. and H. 



