94 



ECHINODERMATA. 



stimpsoni, Lyon, 1 869, Trans. Am. Phil. 

 Soc, vol. 13, Low. Carb. [Ety. proper 

 name.] 



subtumidus, AVorthen, 1873, Geo. Sur. 

 111., vol. 5, Chester Gr. [Sig. some- 

 what tumid or swollen.] 



troostianus, Meek & Worthen, 1860, Proc. 



Acad. Nat. Sci. Phil., Burlington Gr. 



[Ety. proper name.] 

 wortheni. Hall, 1858, Geo. Rep. Iowa, 



Kaskaskia, Gr. [Ety. proper name.] 



Belemnocbinus florifer, Wachsmuth & Springer, 1877, Am. Jour. Sci. & Arts, 3rd series, 

 vol. 13, Burlington Gr. [Sig. flower-bearing — the appearance is that of a bouquet 

 of flowers in a conical vase.] 

 pourtalesi, AVachsmuth & Springer, 1877, Am. Jour. Sci. & Arts, 3d series, vol. 13, 

 Burlington Gr. [Ety. proper name.] These authors have pointed out the family 

 relationship of the genus Belemnocrinus with Apiocrinus and the genus should 

 therefore be classed with the Apiocrinidte. 



EucLADOCRiNus, Meek, 1871, proposed as a subgenus of Platycrinus and founded upon P. 

 montanaensis. 



