PALEONTOLOGY. 435 



Aulopora Goldfuss. 



A. cornuta Bill. 



A. filiformis Bill. 



A. hibceformis Gold. ? 

 Syringopora Goldf. ? 



►S. Hisingeri Bill. 



.S. Maclurei Bill. 



S.tabulata Ed. and Haime. 

 Eridophyelum Ed. and Haime. 



E. Simcoense Bill. 



E. strictum E. and H. 



E. Verneuilanum E. and H. 

 Stylastrea Lonsdale. 



S. Anna Whitf. 

 Zaphrentis Rafinesque. 



Z. cor?iieula Ed. and H. 



Z. Edwardsi Nich. 



Z. gigantea Ed. and H. 



Z. prolific a Bill. 



Z. Wortheyii Nich. 

 Cyathophy'llum Goldf. 



C. rugosttm Hall. 



C. Ze?ikeri Bill. 

 Hadriophyllum Ed. and H. 



H. D ' Orbignj/z ~Ed. and H. 

 Heliophyllum Ed. and H. 



H. co7ifiue?is Hall. 



H. Hdlli Ed. and H. 

 Aulacophyllum Ed. and H. 



A. sulcatum Ed. and H. 

 Cystiphyllum Lonsdale. 



C. America?ium Ed. and II. 



C. Ohioense Nich. 

 CRLKOIDEA. 



Megistocrinus O. and S. 

 M. spinulosus L3'on. 

 Dolatocrinus Lyon. 



D. multiradiatns Hall. 

 D. radiattis Hall. 



BLASTOIDEA. 



Nucleocrinus Conrad. 



N. Verneuili Troost. 

 Codaster McCoy. 



C. pyramidatus Shumard. 



