850 TRANS. OF THE ACAD. OF SCIENCE. 



ACTINOCRINUS, Miller (continued). 



Verneuilianus, Shumard, 1855. 2d Rep. Geol. Missouri, pt. 2, p. 

 193, pi. A, fig. 1. — A. Andrew si amis, McChesney, 1859. 

 New Pal. Foss., p. 27, pi. v., fig. 5. — Enc. — Boone and Ma- 

 rion Counties, Missouri; Burlington, Iowa; near Mon- 

 mouth, Illinois. 



viminalis, Hall, 18G3. Crin. Waverly Sand. Ser. Ohio, p. 5.— 

 Chem. — Summit County, Ohio. 



Wachsmuthi, White, 1862. Proc. Bost. Soc. Nat. Hist., vol. 9, p. 

 15. — Enc. — Burlington, Iowa. 



Waldronensis,\ v. A. Whitfieldi. 



\\"hitfieldi — .4. Christyi, Hall, 1863. Trans. Alb. Inst., vol. iv, p. 

 196. (Not A. Christyi,', Shumard.)— A. Whitfieldi, Hall, 

 1864. Ace. New Foss. Niag. Group, p. 22. — Niag. — Racine 

 and Waukesha, Wisconsin ; Waldron, Indiana. 



(Megistocrinus) Whitei, Hall, 1861. Jour. Boston Soc. Nat. Hist., 

 vol. vii., p. 271. — Enc— Burlington, Iowa. 



Yandelli, Shumard, 1857. Trans. Ac. Sci. St. Louis, vol. i., £. 

 76, pi. i., fig. 4. — Aclinocrinites, Yandell & Shumard, 1847. 

 Cont. Geol. Ky.,p. 24, fig. 5. — Arch. — Button-mould Knob, 

 Jefferson Co., Kentucky ; White's Creek Springs, Tenn. 



The following species of Actinocrinus were omitted in their 

 proper places in the Catalogue, and are now added : 



clivosus, Hall, Jan., 1861. Jour. Bost. Soc. Nat. Hist., vol. vii., 



p. 274. — Enc. — Burlington, Iowa. 

 Daphne, Hall, 1863. Crin. War. Sands. Ohio, p. Z. — Chem.— 



Summit Co., Ohio. 

 Helice, Hall, 1863. Crin. Wav. Sands., p. 4.— Chem. — Summit 



Co., Ohio, 

 opusculus, Hall, 1861. Geol. Iowa, Sup. Explan., pi. 2, fig. 6. — 



Id. Jan., 1861.- Jour. Boston Soc. Nat. Hist., vol. vii., p. 



264. — Enc. — Burlington, Iowa. 



AGARICOCRINUS.^ Troost, 1850. List Crin. Tenn., Proc. Amer. 

 Assoc. Camb. Meet. — Hall, 1858. Geol. Iowa, vol. i., p. 

 617. — Amphoracrinus, F. Roemer, 1854. Leth. Geog., vol. 

 2, p. 250. (Not Amphoracrinus, Austin.) 



t Since the first form of this Catalogue was printed, I have received 

 through the attention of Prof. Hall, a copy of his paper entitled "Account 

 oi* some New or little known Fossils from the Rocks of the age of the Nia- 

 gara Group," bearing date Dec, 1864, in which I find that Prof. H. has 

 changed the preoccupied name Actinocrinus Christyi to that of A. Whit- 

 fieldi. The name Waldronensis, recently proposed by me for the same fos- 

 sil, is therefore now cancelled. 



J In accordance with the views of Troost, Hall, Meek, and others, we 

 here adopt the genus Agaricocrinus, a catalogue name proposed in 1850 by 

 Dr. Troost (List Crinoidea of Tennessee in Proc. Amer. Assoc.) for a mush- 

 room-shaped Crinoid, which in the number and arrangement of the plates 

 composing the body presents considerable analogy with Actinocrinus of 

 Miller, as shown by Prof. Hall (Geol. Iowa, vol. i., p. 617), but which m 

 other respects exhibits characters of generic, or at least subgeneric, value 

 separating it from that genus. The typical species of the genus is Agari- 

 cocrinus Americanus (Roomer sp.), described and figured in Brown's Le- 

 thiea Geognostica as an Amphoracrifms. Agaricocrinus, however, differs 



