CRINOIDS. 225 



angle, for the support of the anal row of plates, much as in 

 Taxocrinus. Radials large ; rays becoming free at the second 

 brachial. Arms short, stout, branching several times. Inter- 

 radials few — the lower one large and resting on the upper 

 sloping sides of the radials, with two pieces in the second 

 range; column stout, tapering gradually downward, composed 

 of very thin ossicles. 



Horizon and localities — Lower Carboniferous, Saint Louis 

 limestone : Saint Louis. 



Spurious and Doubtful Species. 



Glyptocrinus fimbriatus Shumarf', 1855 : Geol Sur. Missouri, Ann. Rep., p. 



194, pi. A, figs. lOa-b. Girardeau limestone (Trenton), Cape Girar- 

 deau county. Not a Glyptocrinus. 

 Platyerinus pentagojius Miller, 1891 : Geol. Sur. Missouri, Bui. 4, p. 16, pi. 



ii, fig. 1. Keokuk linaestone. Boonville. 

 Plaiycrinus blairi yiiWer^l^'dl: Geol Sur. Missouri, Bui. 4, p. 21, pl.ii, 



figs. 13-14. Burlington llmf stone, Sedalia. 

 Platycrinus baticola Miller, 1891 : Geol. Sur. Missouri, Bui. 4, p. 22, pi. iii, 



figs. 1-2. Burlington limestone, Sedalia. 

 Platycrinus concinnus MiUer, 1891: Geol. Sur. Missouri, Bui. 4, p. 18, pi- 



ii, figs. 5-6. Burlington limestone, Sedalia. 

 Platycrinus chouteauensis Miller, 1891 : Geol. Sur Indiana, 18th Ann. Rep., 



adv. sheets, p. 14, pi. ii, figs. 14-15. Kinderhook limestone, Sedalia. 

 Platycrinus colletti M.\\\eT,\Sm: Geol. Sur. Indiana, ISth Ann. Rep., adv. 



sheets, p. 14, pi. ii, fig, 16-17. Kinderhook limestone, Sedalia. 

 Barycrinus boonvillensis Killer, 1891: Geol. Sur. Missouri, Bui. 4, p. 24' 



pi. iii, fig. 5. Keokuk limestone, Boonville. 

 Missouricrinus admonitus Miller, 1891 : Geol. Sur. Missouri, Bui. 4, p. 31, pi. 



iv, figs. 11-12. Burlington limestone, Sedalia. 

 Poteriocritius ? rugosus Rhumard, 1858: Trans. St. Louis Acad. Sci., 



vol. I, p. 223. Coal Measures, Putnam county. Cannot be recog- 

 nized. 

 Scaphiocrinus boonvillensus Miller, 1891 : Geol. Sur. Missouri, Bui. 4, p. 37, 



pi. v, figs. 1-2. Keokuk limestone, Boonville. 

 Scaphiocrinus comtricius Wilier, 1891: Geol. Sur. Missouri, Bui. No. 4, p. 



38, pi. V, fig3. 3-4. Keokuk limestone, Boonville. 

 Acti?iocrinus sedaliensis Killer, 189-2: Geol. Sur. Indiana, 18th Ann. Rep 



adv. sheets, p. 16, pi. iii, fig. 1-3. Burlington limestone, Sedalia. 



