374 TRANS. OF THE ACAD. OF SCIENCE. 



GOMPHOCYSTITES (continued), 

 clavus, Hall, 18G4. New or little known Foss. Niag. Group, p. 6, 

 pi. 1, fig. 3. — Niag. — Racine, Wisconsin. 



glans, Hall, 18G4. New Foss. Niag. Group, p. 6, pi. 1, fig. 4 & 5. 

 — Niag. — Racine, Wisconsin. 



tenax, Hall, 1864. New Foss. Niag. Group, p. G, fig. 1. — Niag. — 

 Lockport, New York. 



GONIASTEROIDOCRlNUS,t (Subgenus of Rhodocrinus,) Lyon & 

 Casseday, 1859. Amer. Jour. Sci., n. ser., vol. 38, p._233. 

 — Trematocrixus, Hall, 18G0. Geol. Iowa, Sup., p. 70. — 

 Gomasterodocrinus, F. B. Meek, Aug., 1865 . Proc. Ac. Nat. 

 Sci. Philad., p. 166. (Compare Acaxthocrinus, Roemer, 

 1850.) 



fiscellus — Trematocrinus fiscellus, Meek & Worthen, Feb., 1801. 

 Proc. Acad. Nat. Sci. Phil., p. 383. — Gilbertsocrinus (Go- 

 niast.) fiscellus, Meek, Aug., 1865. Ibid, p. 167.— Enc. — 

 Burlington, Iowa. 



papillatus — Trematocrinus papillatus, Hall, 18G0. Geol. Iowa, 

 Sup. to vol. i., p. 76. — Gilbertsocrinus (Goniast.) papilla- 

 tus, Meek, Aug., 1865. Proc. Acad. Nat. Sci. Phil., p. 167. 

 — Enc. — Burlington, Iowa. 



reticulatus — Trematocrinus reticulatus, Hall, Feb., 1861. Des. 

 New Crin., Prelim. Not., p. 9.— 1861. Boat. Jour. Nat. 

 Hist., vol. vii., p. 325. — Enc. — Burlington, Iowa. 



robustus — Trematocrinus robustus, Hall, 1860. Geol. Iowa, Sup. 

 to vol. i., p. 77. — Gilbertsocrinus ( Goniast.) robustus, Meek, 

 Aug., 1865. Proc. Acad. Nat. Sci. Phil., p. 167.— Arch.— 

 Keokuk, Iowa. 



spinigerus, Hall, 1862. 15th Rep. Reg. State Cab. New York, p. 

 128. — Gilbertsocrinus ( Goniast.) spinigerus, Meek, August, 

 1865. Proc. Acad. Nat. Sci. Phil., p. 167. — Ham. — Onta- 

 rio Co., New York. 



tuberculosus-- Trematocrinus luberculosus, Hall, 1860. Geol. Iowa, 

 Sup. to vol. i., p. 75. — Enc. — Burlington, Iowa. 



tuberosus, Lyon & Casseday, 1859. Amer. Jour. Sci., 2d series, 

 vol. 28, p. 233. — Gilbertsocrinus ( Goniast.) tuberosus, Meek, 

 1865. Proc. Ac. Nat. Sci. Phil., p. 167.— Kas.('t)— Hardin 

 Co., Kentucky. 



typus, Hall, 1860. Geol. Iowa, Sup. to vol. i., p. 73.— Gilbertso- 

 crinus (Goniast.) typus, Meek, Aug., 1865. Proc. Acad. 

 Nat. Sci. Phil., p. 167. — Enc. — Burlington, Iowa. 



t In a paper published by Mr. Meek in tbe Proceedings of the Academy 

 of Natural Science of Philadelphia for August, 1805. entitled "Note oil the 

 Genus Gilbertsocrinus Phillips," it is stated that after a close comparison 

 of the typical species of Goniasteroidocrinus furnished by Mr. Lyon, one of 

 the authors of the Genus, with examples of Trematocrinus Hall," there is 

 not the slightest generic or subgeneric difference between the types for 

 which these two names were proposed." It therefore becomes necessary to 

 range the species now grouped in Trematocrinus under Goniasteroidocri- 

 nus, although it must be confessed that it is with some regret we find our- 

 selves compelled to adopt the latter instead of the much more euphonious 

 name of Trematocrinus. 



