Keokuk Group at Crawfordsville, Ind. — BeacJiler. 411 
1878. Poteriocrinus (Soap Jit ocrinus) gibsoni White. Proc. Acad. Nat. 
Sci., Phila , p. 31. 
* 1879. Poteriocrinus (Scytalocrinus) grandia Wachmsuth and Springer. 
(Described Poteriocriaus coreyi Worthen, 1875.) Geol. Rep. 111., vol. 
vi, p. 516, pi. 29, fig. 2, 3, (not Pot. [Scaphiocrinus] coreyi M. and W. 
1869.) 
1878. Poteriocrinus {Scaphiocrinus) gurleyi White. Proc. Acad. Nat. Sci., 
Phila., p. 32. 
1865. Poteriocrinus {Scytalocrinus) indianmnsis Meek and Worthen. Proc. 
Acad. Nat. Sci., Phila, p. 155; Geol. Rep. 111. vol. iii, p. 515, pi. 20, 
fig. 4. 
1861. Poteriocrinus nodolracJuatusHaW. Desc. New Pal. Crin., p.8; B )st. 
Jour. Nat. Hist., p. 614, 
1861. Poteriocrinus {Scytalocrinus) rohustus Hall. Desc. New Pal. Grin., 
p. 7; Bost. Jour. Nat. Hist., p. 315. 
* 1879. Poteriocrinus ( P acJiylocrinus) submqualis Wachsmuth and Springer. 
(Type of the group described by Hall, 1861, as Scaphiocrinus mqualis, 
not Pot. Scaphiocrinus mqualis. Hall, 1859.) Desc. New Pal. Grin., p. 
8. Bost. Jour. Nat. Hist., p. 316. Meek and Worthen, 1873, Geol. Rep. 
111., vol. V, pi. 15, fig. 6. 
1861. Poteriocrinus (Scrphiocrinus) unicus Hall. Desc. New Pal. Grin., p. 
8; Bost. Jour. Nat. Hist., p. 313; Geol. Rep. 111., vol. v, pi. 15, fig. 5. 
*1858. Taxocrinus multibrachiatus Lyon and Casseday. {Forbes iocrinus 
viultibrachiatus.) Amer. Jour. Sci , vol. xxiii. Labelled in most Amer- 
ican collections, Forbesiocrinus meeki Hall. 
* 1861. Vasocrinus lyoni Hall. {Gyathocrinus lyoni type of the genus.) 
Desc. New Pal. Grin., p. 5; Bost. Jour. Nat. Hist., p. 298; 1868, Meek 
and Worthen {Barycrinus lyoni); Proc. Amer. Acad. Nat. Sci., Phila., 
p. 340. 
Syn. Gyathocrinus hexadactylus Lyon and Gasseday, 1859. Amer. 
Jour. Sci., p. 74. 
BLASTOIDE^. 
1858. Petitre77iites wortheni Hall. Geol. Surv. Iowa, p. 606; also Geol. Rep. 
111., vol. V, p. 606, pi. 15, fig. 1. 
ECHINOIDE^. 
PERISGHOEGHINID^. 
1868. Lepidesthes coreyi Meek and Worthen. Geol. Rep. 111., vol. iii, p. 
525. 
ASTEROIDE^E. 
1868. Onychaster flexilis Meek and Worthen. Geol. Rep. 111., vol. iii, p. 
526; also vol. v, p. 510, pi. 16, fig. 3. 
1869. Protaster gregarius Meek and Worthen. Proc. Acad. Nat. Sci., 
Phila., p. 169; Geol. Rep. 111., vol. v, p. 509, pi. 16, fig. 5. 
EDRIOASTERID.'E. 
1868. Argelacrinites (Lepidodiscus) squamosus Meek and Worthen. Proc. 
Acad. Nat. Sci., Phila., p. 357: Geol. Rep. 111., vol. v, p. 513, pi. 16, 
fig. 1. 
