ORINOIDS. 217 



terior radial somewhat distorted by the a/ygoas plate, which 

 is large, quadraugalar, obliquely set, and with the upper augle 

 slightly truncated for the first plate of the ventral sac. Column 

 circular. 



Horizon and localities. — Upper Carboniferous, Upper Coal 

 Measures : Kansas City. 



Eupachycrinus maniformis ( Yandell & Shumard ). 



Cyathoci'inus maniformis Yandell & Shumard, 1847: Cont. Geol. Ken- 

 tucky, p. 22, pi. i, fig. 2. 



Poteriocrinus maniformis 'Bh\xmsi.r6. , 1855: Geol. Sur. Missouri, Ann. Kept., 

 p. 217. 



Zeacrinus maniformis Hall, 1858: Geol. Iowa, vol, I, p. 682, pi. xxv, fig. 8. 



Scytalocrinus maniformis Wachemuth & Springer, 1879: Proc. Acad. 

 Nat. Sci., Phila. ( Revision, p. 117). 



Eupachycrinus maniformis Wachsmuth & Springer, 1886 : Proc. Acad. Nat. 

 Sci., PM]a.,p. 173. 



Calyx small, globular, much as in G. globosus in general 

 appearance. Arms ten in number, very stout. 



Horizon and localities. — Lower Carboniferous, Kaskaskia 

 limestone ; Chester ( Illinois ). 



Eupachycrinus orbicularis (Hall). 



Scaphiocrinus orbicularis Hall, 1861 : Boston Jour. Nat. Hist., vol. VII, 



p. 311. 

 Eupachycrinus orbicularis Wachsmuth & Springer, 1879 : Proc . Acad. Nat. 



Sci., Phila. 

 Eupachycrinus orbicularis Worthen, 1891 : Geol. Sur. Illinois, vol . VIII, p. 



97, pi. xiv, figs. 2-2a. 



Calyx globular, greatly depressed; plates smooth. 

 Horizon and localities. — Lower Carboniferous, Keokuk 

 limestone: Keokuk (Iowa); Hamilton (Illinois). 



Eupachycrinus verrucosus ( Whitk & St. John ). 



Plate xxvii, fig. 2. 

 Hydreionocrinus verrucosus Vyhite & St. John, 1869 : Trans. Chicago Acad. 



Sci., vol. I, p. 117. 

 Eupachycrinus verrucosus Meek, 1872: U. S. Geol. Sur. Nebraska, p. 151, 



figs. 3, 4a-d. 



Calyx large, depressed, hemispherical, withinfrabasal parts 

 concave; plates heavy, more or less convex, strongly beveled 

 G— 15 



