SHUMARD — CATALOGUE OF PALEOZOIC FOSSILS. 351 



AGARICOCRINUS, Troost (continued). 



Araericanus — Agaricocrinus tuberosum, Troost, 1850.*? List Crin. 

 Tenn. in Proc. Amer. Assoc. Camb. Meet., p. 60. — Ampho- 

 racrinus Americanus, F. Roemer, 1854. Leth. Geog., vol. 

 2, p. 250, tab. iv., fig. 15. — Agaricocrinus tuberosus, Hall, 

 1858. Geol. Iowa, vol. i., p. 617, pi. 16, fig. 2. — Arch. — 

 Nauvoo and Warsaw, Illinois ; White's Creek Springs, Ten- 

 nessee ; Keokuk, Iowa ; Clark Co., Missouri. 

 (Amphoracrinus) bellatrema, Hall, Jan., 1861. Jour. Bost. Soc. 

 Nat. Hist., vol. vii., p. 281. — Enc. — Burlington, Iowa. 



bullatus, Hall, 1858. Geol. Iowa, vol. i., p. 562, pi. 9, fig. 11.— 

 Enc. — Burlington, Iowa. 



corrugatus, Hall, Feb., 1861. Des. New Crinoidea, Prejiin. Nut., 

 p. 3. — A. {Amphoracrinus) corrugatus, Hall, 1861. Jour. 

 Bost. Soc. Nat. Hist., vol. vii., p. 283. — Enc. — Burlington, 

 Iowa. 



(Amphoracrinus) excavatus, Hall, Feb., 1861. Des. New Crinoid., 

 Prelim. Not., p. 3. — Jan., 1861. Jour. Boston Soc. Nat. 

 Hist., vol. vii., p. 282. — Enc — Burlington, Iowa. 



geometricus, Hall, 1860. Geol. Iowa, Sup., p. 56. — Enc. — Quincy, 

 Illinois. 



gracilis, Meek & Wor., June, 1861. Proc. Ac. Nat. Sci. Phil., p. 

 135. — Eric. — Burlington, Iowa, 



inflatus, Hall, Feb., 1861. Des. New Crinoidea, Prelim. Not., p. 

 4. — A. {Amphoracrinus) inflatus, Hall, 1861. Jour. Bost. 

 Society Nat. Hist., vol. vii., p. 284. — Enc. — Burlington, 

 Iowa. 



ornotremi, Hall, Feb., 1861. Des. New Crinoidea, Prelim. Not., 

 p. 3. — Enc. — Burlington, Iowa. 



planoconvexus, Hall, Feb., 1861. Des. New Crinoidea, Prelim. 

 Not., p. 3. — A. {Amphoracrinus) planoconvexus, Hall, Jan., 

 1861. Jour. Bost. Soc. Nat. Hist., vol. vii, p. 280. — Enc. — 

 Burlington, Iowa. 



pentagonus, Hall, 1860. Geol. Iowa, Sup. to vol. i., p. 57. — Enc. 

 — Burlington, Iowa, 

 var. convexus, Hall, 1860. Geol. Iowa, Sup. to vol. i., p. 58. — 

 Enc. — Burlington, Iowa. 



stellatus, Hall, 1858, Geol. Iowa, vol. i., p. 564, fig. 79. — Enc. — 

 Quincy, Illinois. 



tuberosus, v. Agaricocrinus Americanus. 



quite as materially from Amphoracrinus as the latter does from Actinocri- 

 nus. We are inclined to adopt both names, at least in a subgeneric sense. 

 Allowing Amphoracrinus Gilbertsoni of Austin to stand as the type of the 

 genus Amphoracrinus, such American species as Actinocrinus (Dorycrinvs) 

 Mississippiensis, A. Missouriensis, A. unicornis, A. Gouldi, A. cornigerus, 

 A. corniculus, A. desideratus, and A.brevis, might be separated from Actino- 

 crinus and conveniently arranged with that species in one group under 

 Austin's name. 



§ A strict adherence to the laws of priority compels us to adopt the spe- 

 cific name of Roemer for this fossil, this author having first published a 

 description of it. Troost's name, tuberosus, appears simply as a catalogue 

 name in his List of the Crinoidea of Tennessee, and is unaccompanied with 

 either description or figure. 



