954 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



PERIECHOCRINUS— Continued. 



Geocrinus D'Orbigny, Prodr. de Pal., 1, 1849, p. 4G. (Genotype: Actinocrinitea 

 moniliformis Phillips.) 



Periechocrinus McCoy, Syn. British Pal. Foss., 1855, p. 56. — Pictet, Traite de 

 Pal., 2d ed., 4, 1857, p. 323. — Dujardin and Hupe, Hist. Natur. des Zooph. 

 Echin., 1862, p. 137.— Salter, Cat. Camb. Sil. Foss., 1873, p. 121.— Angelin, 

 Icon. Crinoid., 1878, p. 6.— Zittel, Handb. Pal., 1, 1879, p. 369.— Wachsmuth 

 and Springer, Proc. Acad. Nat. Sci. Philadelphia, 1881, p. 270, 301 (Rev. 

 Pal., pt. 2, pp. 96, 127); 1886, p. 328.— Keyes, Missouri Geol. Surv., 4, for 

 1894, 1895, p. 154. — Wachsmuth and Springer, Mem. Mus. Comp. Zool., 

 Harvard, 20, 1897, p. 519. — Bather, Treatise on Zool., pt. 3, Echinoderma, 

 London, 1900, pp. 166, 168.— Weller, Chicago Acad. Sci., Nat. Hist. Surv. 

 Bull. 4, pt. 1, 1900, p. 36, fig. 24; p. 129, text fig. 49.— Wachsmuth, Zittel- 

 Eastman Textb. Pal., 1, 1900, p. 144.— Zittel, Grundzuge Pal., 1, 1910, p. 

 158.— Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 536.— Springer, 

 Zittel-Eastman Textb. Pal., 2d ed., 1913, p. 194. 



Trochocrinites Portlock, Geol. Londonderry, 1848, p. 345. 



Saccocrinus Hall, Pal. New York, 2, 1852, p. 205.— Pictet, Traite de Pal., 2d ed., 

 4, 1857, p. 323.— Roemer, Sil. Fauna West. Tennessee, Breslau, 1860, p. 44.— 

 Meek and Worthen, Geol. Surv. Illinois, 3, 1868, p. 347; Proc. Acad. Nat. Sci. 

 Philadelphia, 1869, p. 165; Geol. Surv. Illinois, 5, 1873, p. 394; also p. 395.— 

 Hall, 28th Rep. New York State Mus. Nat. Hist., 1879, rev. ed., p. 127.— 

 Zittel, Handb. Pal., 1, 1879, p. 369.— Miller, Jour. Cincinnati Soc. Nat. Hist., 

 4, 1881, pp. 166, 167; N. A. Geol. Pal., 1889, p. 278.— Springer, Zittel-Eastman 

 Textb. Pal., 1, 1913, p. 194. (Genotype: S. speciosus Hall.) 



CrumenEecrinites Troost, Amer. Jour. Sci. Arts, 2d ser., 8, 1849, p. 420 (nom. nud.). 



Periechocrinus chicagoensis Weller. See Habrocrinus benedicti. 

 Periechocrinus christyi Hall. See Periechocrinus whitfieldi. 



Periechocrinus dubius Wood. 



Actinocrinites tennesseeae (part) Troost, MS., 1850. 



Gilbertsocrinites(?) dubius Troost, MS., 1850. 



Saccocrinus speciosus Roemer (not Hall, 1852), Sil. Fauna West. Tennessee, 1860, 



p. 42, pi. 3, figs. 3a-c. 

 Periechocrinus speciosus (part) Wachsmuth and Springer, Mem. Mus. Comp. 



Zool., Harvard, 20, 1897, p. 521. 

 Periechocrinus dubius Wood, Bull. U. S. Nat. Mus., 64, 1909, p. 77. 

 Niagaran (Brownsport): Perry and Decatur Counties, Tennessee. 

 Cotypes— Cat. No. 39967, U.S.N.M. 



Periechocrinus egani (Miller). 



Saccocrinus egani Miller, Jour. Cincinnati Soc. Nat. Hist., 4, 1881, p. 173, pi. 4, 



figs. 4, 4a. 

 Periechocrinus egani Wachsmuth and Springer, Proc. Acad. Nat. Sci. Philadelphia, 



1885, p. 328 (Rev. Pal., pt. 3, sec. 1, p. 106).— Weller, Bull. Chicago Acad. 



Sci., Nat. Hist. Surv., 4, pt. 1, 1900, pp. 130, 136, pi. 13, fig. 9. 

 Niagaran (Racine): Cicero and Bridgeport, Illinois. 



Periechocrinus gorbyi (Miller). 



Saccocrinus gorbyi Miller, 17th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1892, p. 



667, pi. 9, fig. 2, 3 (adv. sheets, 1891, p. 57). 

 Niagaran (Brownsport): Adams, Decatur County, Tennessee. 



Periechocrinus howardi Wachsmuth and Springer. See Habrocrinus howardi. 



