610 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



HERMATOSTROMA Nicholson. Genotype: H. Bchluteri Nicholson. 



Hermatostroma Nicholson, Mon. British Strom., Pal., Soc., 1886, p. 105; ibid., 

 1892, pp. 218, 219.— Parks, Univ. Toronto Studies, Geol. Ser., no. 4, 1907, p. 

 34.— Zittel-Eastman Pal., 2d ed., 1913, p. 123. 



Hermatostronja guelphica Parks. 



Horrnatostroma guc'li)hi(a Parks, Univ. Toronto Studies, Geol. Series, no. 4, 1907, 



p. 34, pi. 4, fiRs. 1, 2; pi. G, fig. 4, 3. 

 Niagaran (Guelph): Elora, Ontario. 



IlEitPETOCRiNUs Salter. See Myelodactylus Hall. 



Heterocrinites simplex Troost. See Ectenocrinua canadensis. 



HETEROrRINUS "Ilall. Genotype: II. hctcrodactylus Hall. 



Ileteroirinus Hall, Pal. New York, 1, 1847, p. 278. — D'Orbigny, Prodr. de Pal., 

 1, 1849, p. 24.— Emmons, Amer. Geology, 1, pt. 2, 1855, p. 223.— Billings, 

 Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, p. 271.— Pictet, Traite de 

 Pal., 2d ed., 4, 1857, p. 329.— Billings, Geol. Surv. Canada, dec. 4, 1859, p. 48, 

 fig. 16.— Shumard, Trans. Acad. Sci. St. Louis, 2, 1866, p. 376.— Meek and 

 Worthen, Proc. Acad. Nat. Sci. Philadelphia, 1865, p. 147.— Hall, 24th Rep. 

 New York State Cab. Nat. Hist., 1872, p. 210 (adv. sheets 1866).— Meek, 

 Geol. Sun-. Oliio, Pal., 1, 1873, p. 1.— Zittel, Handb. Pal., 1, 1879, p. 358.— 

 Carpenter, Phil. Trans. Royal Soc. Loudon, 174, 1884, p. 933. — Wachamuth 

 and Springer (part), Proc. Acad. Nat. Sci. Philadelphia, 3, 1SS6, pp. 127, 129 

 (Rev. Pal., pt. 3, sec. 2, pp. 187, 203, 205); ibid., 1890, pp. 355-390.— Miller, 

 N. A. Geol. Pal., 1889, p. 252.— Bather, Ann. Mag. Nat. Hist., 6th ser., 5, 

 1890, p. 324, pi. 14, fig. 6; pi. 15, figs. 5a, b.— Bather, Kongl. Sv. Vet. Akad. 

 Hand!., 25, 1893, p. 25, fig. 6; Nat. Sci., 12, 1898, p. 343; Treatise on Zool., 

 pt. 3, Echinodernia, London, 1900, p. 146, fig. 58, 2.— Wachsmuth, Zittel- 

 Ea.stman Textb. Pal., 1, 1900, p. 152.— Cumings, 32d Ann. Rep. Dep. Geol. 

 Nat. Res. Indiana, 1908, p. 713. — Grabau aud Shimer, N. A. Index Fos- 

 sils, 2, 1910, p. 501.— Springer, Geol. Surv. Canada, Mem. 15P, 1911, p. 

 27; Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 212. 

 Stenocrinus W'achsmuth and Springer, Proc. Acad. Nat. Sci. Pliiladelpliia, 1886, 

 pp. Ill, 127, 130, 131 (Rev. Pal., 3, sec. 2, pp. 187, 203, 206, 207)'.— Bather, 

 Treatise on Zool. (Lankester), pt. 3, 1900, p. 146.— Zittel, Grundzuge Pal., 1, 

 1910, p. 151. (Genotype: Heterocrinus heterodactylus Hall.) 



Heterocrinus ARTicuLOSUs BilUugs. See Cremacrinus articulosus. 

 Heterocrinus bellevillensis W. R. Billings. See Ohiocrinus bellevillensis. 

 Heterocrinus Canadensis Billings. See Ectenocrinus canadensis. 

 Heterocrinus constrictus Hall. See Ohiocrinus constrictus. 

 Heterocrinus constrictus var. compactus Meek. See Ohiocrinus compactua. 

 Heterocrinus constrictus var. contractus Wachsmuth and Springer. See Ohio- 

 crinus compactus. 

 Heterocrinus crassus Meek and Worthen. See locrinuscrassus. 

 Heterocrinus decadactylus Emmons. See Glyptocrinus dccadactylue. 

 Heterocrinus exiguus Meek. See Heterocrinus exilis cxiguus. 

 Hcterocrliiu.s cxilLs llall. 



Ueteroc rinus exilis Ilall, 24th Rep. New York State Cab. Nat. Hist., 1872, p. 213, 

 pi. 5, fig. 16 (adv. sheets 1866 and 1871). — Meek, Geol. Surv. Ohio, Pal., 1, 

 1873, p. 5, pi. 1, fig. 12. 

 Stenocrinus exilis W'achmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 



1886, p. 132 (Rpv. Pal., pt. 3, sec. 2. p. 20SV 

 Eden (Economy-McMickeu): Cincinnati, Ohio, aud vicinity. 



