208 CRINOIDS. 



Cyathocrinus viminalis Hall, 1861 : Jour. Boston Soc. Nat. Hist., vol. VII, 



p. 299. 

 Cyathocrinus sampsoni Miller, 1891: Geol. Sur. Missouri, Bui. No. 4, p. 



30, pi. iv, figs. 9-10. 



Cal;yx sub-globose, flattened above ; sutures impressed ; 

 iufrabasals five, rather large, curving slightly upward. Basals 

 very large, the posterior broadly truncated. Radials also some- 

 what larger than the basals, with large articulating facets. 

 Arms long, slender, bifurcating. Anal plate above medium 

 size. Yentral side closed by five large ossicles. Stem round. 



Horizon and localities — Lower Carboniferous, Barling- 

 ton limestone : Louisiana, Sedalia. 



^Cyathocrinus boonvillensis Miller. 



Cyathocrinus 'boonvillenfiisW\W.QX^\%^\: Geol. Sur. Missouri, Bui. 4, p. 29, 

 pi. iv, figs. 3-4. 



Calyx globular, ornamented by double ridges passing from 

 the center of one plate to the adjoining plates. Arms stout. 



Horizo7i and localities. — Lower Carboniferous, Keokuk 

 limestone : Boonville. 



Cyathocrinus enormis Meek & Worthen. 

 Plate XXV, fig. 12. 



Poteriocrinus enormis Meek & Worthen, 1865: Proc. Acad. Nat. Sci., Phila., 



1865, p. 137. 

 Cyathocrinus eno7'mis Meek & Worthen, 1865: Proc. Acad. Nat. Sci., Phila., 



1865, p. 152. 



Calyx like C. iowensis, but thinner and more conical. 

 Horizon and localities. — Lower Carboniferous, Lower Bur- 

 lington limestone: Hannibal. 



Lecythiocrinus olliculaeformis White. 



Plate XXV, fig. 13. 



Lecythiocrinus olliculceformis White, 1880: Proc. U. S. Nat. Mus., vol. 



II, p. 257, pi. i, figs. 4-5. 

 Lecythiocrinus olliculmformis White, 1883: U. S. Geol. Sur. Terr., 12th 



Ann. Rep., p. 124, pi. xxxv, figs. 2a and 6. 

 Lecythiocrinus adamsi Worthen, 1882: Illinois State Mus. Nat. Hist., 



Bui. 1, p. 37. 

 Lecythiocrinus adamsi Worthen, 1883 : Geol. Sur. Illinois, vol. VII, p. 317, 



pi. xxxi, figs. 8a-d. 



