654 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



HYBOCRINUS Continued. 



305. Wachsmuth and Springer, Amer. Jour. Sci., 3d ser., 26, 1883, p. 365. 

 Miller, N. A. Geol. Pal., 1889, p. 255. Bather, Ann. Mag. Nat. Hist., 6th ser., 

 5, 1890, p. 324, pi. 14, fig. 3; Kongl. Sv. Vet. Akad. Handl., 25, No. 2, 1893, 

 p. 21; Geol. Mag., dec. 4, 6, 1889, p. 33, fig. 6; Treatise on Zool., pt. 3, Echinc- 

 derma, London, 1900, p. 145, fig. 57, 3. Wachsmuth, Zittel-Eastman Textb. 

 Pal., 1, 1900, p. 151. Zittel, Grundzuge Pal., 1910, p. 151. Grabau and 

 Shimer, N. A. Index Fossils, 2, 1910, p. 500. Springer, Mem. Geol. Surv. 

 Canada, 15P, 1911, pp. 13-23; Zittel-Eastman Textb. Pal., 2d ed., 1913, 

 p. 211. 



HYBOCRINUS (ANOMALOCRINUS) Meek and Worthen. See Anomalocrinus Meek. 



Hybocrinus conlcus Billings. 



Hybocrinus conicus Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, 

 p. 274; Geol. Surv. Canada, dec. 4, 1859, p. 29, pi. 2, figs. 2a, b. Wetherby, 

 Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 153. Miller, N. A. Geol. Pal., 

 1889, p. 255, fig. 341. Springer, Mem. Geol. Surv. Canada, 15P, 1911, pi. 4, 

 fig. 6. 



Trenton (Curdsville) : Ottawa, Ontario; Mercer County, Kentucky. 



HYBOCRINUS? (ANOMALOCRINUS) INCURVUS Meek and Worthen. See Anomalocrinus 

 incurvus. 



Hybocrinus pristinus Billings. 



Hybocrinus pristinus Billings, Geol. Surv. Canada, dec. 3, 1858, p. 25, figs. 4, 5; 



dec. 4, 1859, p. 23, pi. 1, fig. 2a. Grabau and Shimer, N. A. Index Fossils, 



2, 1910, p. 501. 

 Chazyan (Aylmer): Caughnawaga, and Islands of Montreal, Jesus, and Bizard, 



Canada. 



Hybocrinus tumtdus Billings. 



Hybocrinus tumidus Billings, Geol. Surv. Canada, Rep. Progr. 1853-56, 1857, 

 p. 275; Geol. Surv. Canada, dec. 4, 1859, p. 28, pi. 2, figs, la-le . Wetherby, 

 Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 153, pi. 5, figs. 2a-c. Carpenter, 

 Quart. Jour. eol. Soc. London, 38, 1882, p. 298, fig. A; pi. 11, figs. 3-5. 

 Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 501, fig. 1812. Springer, 

 Mem. Geol. Surv. Canada, 15P, 1911, p. 18, pi. 5, figs. 1-5. 



Trenton (Curdsville): Ottawa, Ontario; Woodford and Mercer Counties, Kentucky. 



HYBOCYSTIS Bather. See Hybocystites Wetherby. 



HTBOCYSTITES Wetherby. Genotype: H. problematicus Wetherby. 



Hybocystites Wetherby, Jour. Cincinnati Soc. Nat. Hist., 3, 1880, p. 150. Car- 

 penter, Quart. Jour. Geol. Soc. London, 38, 1882, p. 308. Wachsmuth and 

 Springer, Proc. Acad. Nat. Sci. Philadelphia, 1886, pp. 360, 373 (Rev. Pal., pp. 

 186, 199.) Miller, N. A. Geol. Pal., 1889, p. 256. Zittel, Grundzuge Pal., 

 1910, p. 151. 



Hybocystis Bather, Treatise on Zool., pt. 3, Echinoderma, London, 1900, p. 145. 

 Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 152. Springer, Mem. 

 Geol. Surv. Canada, 15P, 1911, pp. 13-25; Zittel-Eastman Textb. Pal., 1, 

 1913, p. 211. 



Hybocystites eldonensis (Parks). 



Hybocystis eldonensis Parks, Ottawa Nat., 21, 1908, p. 234, pi. 2, fig. 4. Springer, 



Mem. Geol. Surv. Canada, 15P, 1911, p. 13, pi. 2, figs. 1-10. 

 Trenton (Curdsville): Eldon township, Victoria County (near Kirkfield), Ontario. 

 Observation. Probably the same as H. problematicus. 



