658 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



ICHTHYOCRINUS Conrad. Genotype: I. lae via Conrad. 



Ichthyocrinus Cunrad, Jour. Acad. Nat. Sci. Philadelphia, 1842, 8, p. 279.— 

 D'Orbigny, Prodr. de Pal., 1, 1849, p. 46.— Hall, Pal. New York, 2, 1852, 

 pp. 195-355.— McCoy, British Pal. Rocks Fosb., 1854, p. 54.— Pictet, Traite 

 de Pal., 2d ed., 4, 1857, p. 319.— Hall, Rep. Geol. Snrv. Iowa, 1, 1858, pt. 2, 

 p. 557.— Beyrich, Ann. Mag. Nat. Hiet., 4th ser., 7, 1871, p. 403.— Salter, 

 Cat. Camb. and Sil. Foss., 1873, p. 12G.— Angelin, Iron. Crinoid., 1878, p. 13.— 

 Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1878, p. 252; 

 ibid., 1886. p. 67; ibid., 1888, p. 353; ibid., 1890, p. 387.— Zittel, Ilandb. 

 Pal., 1, 1879, p. 355.— Miller, N. A. Geol. Pal., 1889, p. 256.— Bather, Nat. 

 Sci., 12, 1898, p. 341.— Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 

 4, pt. 1, 1900, p. 145, fig. 53.— Bather, Treatise on Zool., pt. 3, Echinoderma, 

 London, 1900, p. 188, fig. 108.— Wachsmuth, Zittel-Eastman Textb. Pal., 1, 

 1900, p. 163.— Grabau, Bull. Buffalo Soc. Nat. Sci., 7, 1901, p. 159; Bull. 

 New York State Mus., 45, 1901, p. 159.— Springer, Jour. Geol., 14, 1906, p. 

 516.— Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 563.— Springer, 

 Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 204. 



Ichthyocrinus? cllntonensis Hall, 



Ichthyocrinus? clintonensisHall, Pal. New York, 2, 1852, p. 181, pi. A40, fig. 5. 

 Lower Clinton: Reynales Basin, Niagara County, New York. 



Ichthyocrinus conoldeus Ringueberg. 



Ichthyocrinus conoideus Ringueberg, Ann. New York Acad. Sci., 5, 1890, p. 305, 



pi. 3, fig. 5. — Springer, Mon. Criu. Flex., Smith. Inst, (in press). 

 Niagaran (Lockport-Gasport member): Lockport, New York. 



Ichthyocrinus corbis Winchell and Alarcy. 



Ichthyocrinus corbis Winchell and Marcy, Mem. Boston Soc. Nat. Hist., 1, 1865, 

 p. 89, fig.— Miller, Jour. Cincinnati Soc. Nat. Hist., 4, 1881, p. 175, pi. 4, fig. 

 5; N. A. Geol. Pal., 1889, p. 256, fig. 343. 

 Niagaran (Racine): Chicago and Cicero, Illinois. 



Ichthyocrinus loevls Conrad. 



Ichthyocrinus Isevis Conrad, Jour. Acad. Nat. Sci. Philadelphia, 8, 1842, p. 279, 

 pi. 15, fig. 16.— Hall, Pal. New York, 2, 1852, p. 195, pi. 43, figs. 2a-p.— 

 Billings, Canadian Nat. Geol., 1, 1856, p. 59, pi. fig. 4.— Pictet, Traite de Pal., 

 2d ed., 4, 1857, p. 319, pi. 100, fig. 17.— Emmons, Man. Geol., 1860, p. 110, 

 fig. 100.— Liucklaen, 14th Rep. New York State Cab. Nat. Hist., 1861, pi. 7, 

 fig. 3. — Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1879, 

 p. 258.— Miller, N. A. Geol. Pal., 1889, p. 256, fig. 344.— Grabau, Bull. Buffalo 

 Soc. Nat. Sci., 7, 1901, p. 159, fig. 54; Bull. New York State Mus., 45, 1901. p. 

 159, fig. 54.— Grabau and Shimer, N. A. Index Fossils. 2, 1910, p. 564, fig. 1900. 



Cyathocrinitps pyriformis Hall, Nat. Ilist. New York Geol., 4, 1843, p. 11, fig. 3; 

 p. 112, tab. ill. 17, fig. 3.— Owen, Amcr. Jour. Sci. Arts, 48, 1845, p. 314, fig. 3. 



Cyathocrinus pyriforniis Lesley, Geol. Surv. Pennsylvania, Rep. P 4, 1889, p. 167, 



figs. 

 Lecanocrinus simplex Hall, Pal. New York, 2, 1852, p. 202, pi. 46, figs. 2a-e. 

 Ichthyocrinus simplex Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- 



dcli)lua, 1879 (Rev. Pal., 1, 1879, p. 35). 

 Clinton (Rochester): Lockport, Rochester, etc.. New York; Ontario. 



Ichthyocrinus simplex Wachsmuth and Springer. See Ichthyocrinus UeviB. 



Ichthyocrinus suban^ularls Hall. 



Ichthyocrinus Kubangularis Hall, Trau.-^. Albany Inst., 4, 1863, p. 201 (abstract, 

 p. 7); 20th Rep. New York State Cab. Nat. Hist, (extras, 1865), p. 325, pi. 



