Keokuk Group at Crawjordsville, Ind. — Beachler. 409 
which is exclusively a characteristic fossil of the Keokuk 
^oup.* 
Up to this date no v irtebrate remains have been determined. 
In preparing this article and following catalogue of fossils I 
must acknowledge special indebtedness to professors Leo Les- 
quereux of Columbus, 0., E. T. Cox and J. S. Newberry of 
New York city, James Hall of Albany, N. Y., A. H. Worthen 
of Springfield, 111., James D. Dana of New Haven, Conn., and 
to J. M. Coulter of this city. 
Also to Charles Waclismuth and Frank Springer for the use 
of their work "The revision of the Palasocrenoidea" published in 
the proceedings of the Philadelphia Academy of Natural 
Sciences. 
List of fossils of the Keokuk groiip at Crawfordsville, Indiana. 
PORIFERATA. 
Cleodictya (sp. inedt.) Hall. 
CCELENTERATA. 
[Several specimens of the genus Zaphrentis have been found at this 
locality, but no definite species have yet been determined except in one 
case; Ind. Geol. Rep. 187.5, gives Zaphrentis daUi Edwards imd Haime, also 
the species AuUpora gigas Rorainger, Amplexus fragilis White and St. 
John, Syringopora (sp.?)] 
ECHINODERMATA. 
CRINOIDE/E. 
Species marked with an * are referred to said genus for the first time 
by Charles Wachsmuth and Frank Springer in their work on the revision 
of the Paloeocrinoidea from which this list of crinoids has been compiled. 
1881. Agaricocrinus springeri White. Geol. Rep. Ind., 1881. 
*18r)8. Barycrinus herculeus Meek and Worthen. {B. hoveyi var. hereu- 
leus) Proc. Acad. N'at. Sci., Phila., p. 341. Geol. Rep., 111., vol. v, p. 
485, pi. 13, fig. 2. 
1861. Barycrinus hoveyi Hall. {Cyathocrinus hoveyi) Desc. New Pal. 
Grin. p. 5, Bost. Jour. Nat. Hist., p. 293. Meek and Worthen, 1873, 
B. hoveyi Geol. Rep. 111., vol. v, p. 486, pi. 13, fig. 1. 
* 1859. B'ltoerinus indiancensis Lyon and Casseday. {Actinocrinus in- 
diancensis) Amer. Jour. Sci. and Arts, vol. xxix, p. 75. ]\Ieek and 
Worthen, 1873. Actinocrinus indiamvnsis Geol. Rep. 111., vol. t, p. 
341. 
* 1880. Batocrinus wa''hsmuthi White. {Actinocrinus wachsmulhi not A. 
wachsmuthi ISQ^ —Actinocricrinus scitulus.) Author's Edit, from 12th 
Annual Rep. U, S. Geol. Surv by Hayden, p. 162, pi. 40, figs. 1 a. b. 
Geol. Rep. Ind., 1879-80, p. 142, pi. 7, fig. 6. 
*Prof. A. H. Worthen to author in letter, dated March 28, '88. 
