576 BULLETIN 92^ UNITED STATES NATIONAL MUSEUM. 



Gyronema speciosiim Miiteaves. 



Gyronema speciosum Whiteaves, Geol. Surv. Canada, Ana. Rep., n. s., 14, App. 

 F, 1904, p. 50; Geol. Siu-v. Canada, Pal. Foss., 3, pt. 4, 1906, p. 258, pi. 29, 

 fig. 2. 

 Niagaran: Ekwan River, Canada. 



HABROCRINUS D'Orbigny. Genotype: H. pusillus D'Orbigny. 



Abrocrimis D'Orbigny, Prodrome Pal. Strat., 1, 1844, pp. 47-146; Cours Elemeu- 



taire de Pal., Geol., 2, 1851, p. 144. 

 Habrocrinns Angelin, Icon. Crin. Suec, 1878, p. 3.— Wacbsmutb and Springer, 



Proc. Acad. Nat. Scl. Philadelphia, 1881, p. 279 (Rev. Pal., pt. 2, p. 105). 



Habrocrinns benedicti (Miller). 



Saccocrinus benedicti Miller, 18th Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1894, 



p. 283, pi. 5, fig. 1, 2 (adv. sheets, 1892). 

 Habrocrinns benedicti Slocom, Field Columbian Mus., 2, Geol. Ser., 1908, p. 295, 



pi. 87, figs. 6, 7. 

 Periechocrinus cliicagoensis Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, 



1902, p. 131, pi. 13, figs. 7, 8. — Grabau and Shimer, N. A. Index Fo.ssils, 2, 



1910, p. 536. 

 Niagaran: St. Paul, Indiana (Laurel); Bridgeport and Joliet, Illinois (Racine). 



Habrocrinns farringtoni Slocom. 



Habrocrinns farringtoni Slocom, Field Columbian Mus, Geol., 2d ser., 2, 1908, p. 



298, pi. 87, figs. 1-5. 

 Niagaran (Racine): Drainage Canal near Lemont, Illinois. 



Habrocrinns howardi (Miller). 



Saccocrinus howardi Miller, 18tli Ann. Rep. Dep. Geol. Nat. Res. Indiana, 1894, 



p. 284, pi. 5, fig. 3-5 (adv. sheets, 1892); N. A. Geol. Pal., 1st App., 1892, p. 



681, fig. 1244. 

 Periechocrinus Howardi Wachsmuth and Springer, Mem. Mus. Comp. Zool., 



Harvard, 21, 1897, p. 529. 

 Habrocrinns howardi Slocom, Field Columbian Mus., 2, Geol. Ser., 1908, p. 295. 

 Niagaran (Laurel) : St. Paul, Indiana. 



Habrocrinns lemontensis Slocom. 



Habrocrinns lemontensis Slocom, Field Columbian Mus., Geol. Ser., 2, 1908, p. 



297, pi. 87, figs. 8-10. 

 Niagaran (Racine): Drainage Canal near Lemont, Illinois. 



Habrocrinus ornatus Wachsmuth and Springer. See Periechocrinus ornatus. 



HALICHONDRITES Dawson and Hinde. 



Genotype: H. confusus Dawson and Hinde, 

 Halichondritcs Dawson and Hinde, Canadian Rec. Sci., 3, 1888, p. 68. — Dawson, 

 Trans. Roy. Soc. Canada, 7, sec. 4, 1890, p. 52.— MUler, N. A. Geol. Pal., 1st 

 App., 1892, p. 667.— Rauff, Neues Jahrb. Min., Geol. Pal., 2, 1893, p. 58. 



Halichondritcs confusns Dawson and Hinde. 



Halichondrites confusus Dawson and Hinde, Trans. Roy. Soc. Canada, 7, sec. 4, 



1890, p. 52, fig. 23.— Dawson, ibid., 2d ser., 2, sec. 4, 1896, p. 116, fig. 26. 

 Canadian? (Levis?): Metis, Quebec. 



HALLIA Edwards and Haime. Genotype: H. insignis Edwards and Haime. 



Hallia Edwards and Haime, Mon. Polyp. Foss. Terr, Pal., 1851 (Arch, du Mus. 



d'Hist. Nat., 5), pp. 165-353.— Pictet, Traite de Pal., 2d ed., 4, 1857, p. 453.— 



