FOSSILS OF THE CINCINNATI GROUP. 25 



Spirorbis cincinnatiensis, Miller & Dyer. 

 Spirorbis lovelandensls, James. 

 Tentaeulites richmonclensis, S. A. Miller. 

 *Tentaculites sterlingensis, Meek & Worthen. 

 Tentaeulites tenuistriatus, Meek & Worthen. 

 Walcottia cookana, Miller & Dyer. 

 Walcottia rugosa, Miller & Dyer. 

 Walcottia sulcata, James. 



Class CRUSTACEA. 



"*Acidaspis cincinnatiensis, Meek. 



Acidaspis ceralepta, Anthony.' 



Acidaspis anchoralis, S. A. Miller. 

 *Acidaspis crossota, Locke. 



Acidaspis o'nealli, S. A. Miller. 



Acidaspis trentonensis, Hall. 

 *Asaphus gigas, DeKay. "\ ^ '>5. vv ^'^ 

 *Asaphus megistos, Locke, j ( 



Beyrichia (Primitia, Jones) cincinnatiensis, S. A. M. 

 *Beyrichia chambersi, S. A. Miller. 

 *Beyrichia ciliata, Emmons. 



Beyrichia duryi, S. A. Miller. 



Beyrichia elongata, Ulrich.§ 

 *<^*Beyrichia oculifera. Hall. 

 *Beyrichia persulcata, Ulrich. 



Beyrichia regularis, Emmons. 



Beyrichia richardsoni, S. A. Miller. 



Beyrichia (Primitia) striatomarginata, S. A. Miller. 

 *Calymene christyi, Hall. 

 ^ ^Calymene senaria, Conrad. 



Ceraurus icarus, Billings. 



Ceraurus perforator, Billings. 

 *Ceraurus pleurexanthemus. Green. 



Cythere cincinnatiensis, Meek. 



Cythere irregularis, S. A. Miller. 



Dalmanites achates, Billings. 



Dalmanites breviceps. Hall. 



