FOSSILS OF THE CINCINNATI GROUP. 25 



Spirorbis cincinnatiensis, Miller & Dyer. 

 Spirorbis lovelandensis, James. 

 Tentaculites richmondensis, S. A. Miller. 

 Lj*Tentaeulites sterlingensis, Meek & Worthen. 

 Tentaculites tenuistriatus, Meek & Worthen. 

 Walcottia cookana, Miller <fc Dyer. 

 Walcottia rugosa, Miller & Dyer. 

 Walcottia sulcata, James. 



Class CRUSTACEA. 



*Acidaspis cincinnatiensis, Meek. 



Acidaspis ceralepta, Anthony. 



Acidaspis anchoralis, S. A. Miller. 

 * Acidaspis erossota, Locke. 



Acidaspis o'nealli, S. A. Miller. 



Acidaspis trentonensis, Hall. 

 *Asaphus gigas, DeKay. 

 ^*Asaphus megistos, Locke. 



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

 *Beyrichia chambersi, S. A. Miller. 

 *Beyrichia ciliata, Emmons. 



Beyrichia duryi, S. A. Miller. 



Beyrichia elongata, Ulrieh. 

 *Beyrichia oculifera, Hall. 

 *Beyrichia per sulcata, Ulrich. 



Beyrichia regularis, Emmons. 



Beyrichia richardsoni, S. A. Miller. 



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

 *Calymene christyi, Hall. 

 _j*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. 



