158 proceedings of the academy of [1890. 



Synoptical Table of Crinoids and Associated Capull 



Crinoids. 



cf^ 



Gilbertsocrinus tuberosus. 



Gilbertsocrinus typus. 



Actinocrinus verrucosus. 



Physetocrinus ventricosus. 



Strotocrinus regalis. 



Dorycrinus immahirus. 



Agaricocrinus americanus. 



Eucladocrimis millebrachiatus. 



Arthroacaniha p'undobrachiata. 



Pterotocvimis acutiis. 



Pterotocrinus depressus. 



Pterotocrinus bifurcatus. 



Poteriocrinus coceinus. 



Platycrinus hemisphericus. 



Platycrinus pileijormis. 



Acrocrinus shumardi. 



Cromyoerinus simplex. 



Marsupiocrinus ccelatus. 



Melocrinus globosus. 



Pentremifes godoni. 



