692 BULLETIN 92, UNITED STATES NATIONAL MUSEUM. 



LASIOGRAPTUS MUCRONATUS Lapworth. See Lasiograptus bimucronatus. 



LASIOTHRIX Dawson and Hinde. Genotype: L. curvicostata Dawson and Hinde. 

 Lasiothrix Dawson and Hinde, Trans. Roy. Soc. Canada, 7, sec. 4, 1890, p. 50. 

 Dawson, ibid., 2d ser., 2, sec. 4, 1896, p. 114. Miller, N. A. Geol. Pal., 1st 

 App., 1892, p. 667. 



Lasiothrix curvicostata Dawson and Hinde. 



Lasiothrix curvicostata Dawson and Hinde, Trans. Roy. Soc. Canada, 7, sec. 4, 



1890, p. 51, fig. 21. Dawson, ibid., 2d ser., 2, sec. 4, 1896, p. 144, fig. 24. 

 Canadian? (Levis?): Metis, Quebec. 



Lasiothrix flabellata Dawson and Hinde. 



Lasiothrix flabellata Dawson and Hinde, Trans. Roy. Soc. Canada, 7, sec. 4, 



1890, p. 51, fig. 22. Dawson, ibid., 2d ser., 2, sec. 4, 1896, p. 115, fig. 25. 

 Canadian? (Levis?): Metis, Quebec. 



LECANOCRINUS Hall. Genotype: L. macropetalus Hall. 



Lecanocrinus Hall, Pal. New York, 2, 1852, p. 199. Pictet, Traite de Pal., 2d ed., 

 4, 1857, p. 319. Billings, Geol. Surv. Canada, Rep. Progr. for 1853-56, 1857, 

 p. 278. Schultze, Denk. d. Kais. Akad. Wiss., Math.-Naturw., Cl. 26, Abth. 2, 

 1867, p. 152, fig. 7. Wachsmuth and Springer, Proc. Acad. Nat. Sci. Phila- 

 delphia, 1879, p. 262 (Rev. Pal., pt. 1, p. 39); ibid., 1890, p. 388. Beyrich, 

 Ann. Mag. Nat. Hist., 4th ser., 7, 1871, p. 404. Angelin, Icon. Crinoid., 1878, 

 p. 11. Zittel, Handb. Pal., 1, 1879, p. 355. Miller, N. A. Geol. Pal., 1889, 

 p. 257. Weller, Bull. Chicago Acad. Sci., Nat. Hist. Surv., 4, pt. 1, 1900, p. 

 147, fig. 54. Bather, Treatise on Zool , pt. 3, Echinoderma, London, 1900, 

 p. 188. Wachsmuth, Zittel-Eastman Textb. Pal., 1, 1900, p. 163. Grabau, 

 Bull. New York State Mus., 45, 1901, p. 160; Bull. Buffalo Soc. Nat. Sci., 7, 

 1901, p. 160. Springer, Amer. Geol., 30, 1902, p. 94; Jour. Geol., 14, 1906, 

 p. 517. Grabau and Shimer, N. A. Index Fossils, 2, 1910, p. 564. Springer, 

 Zittell-Eastman Textb. Pal., 2d ed., 1913, p. 203. 



Cyrtidocrinus Angelin Icon. Crin. Suec., 1878, p. 20. 



LECANOCRINUS CALICULUS Hall. See Pycnosaccus calyculus. 

 LECANOCRINUS ELEQANS Billings. See Protaxocrinus elegans. 

 LECANOCRINUS EXCAVATUS Ringueberg. See Asaphocrinus ornatus. 

 LECANOCRINUS GREENEI Miller and Gurley. See Anisocrinus greenei. 



Lecanocrinus hemisphericus Rowley. 



Lecanocrinus hemisphericus Rowley, Amer. Geol., 34, 1904, p. 271, pi. 14, fig. 



17-19. 



Niagaran (Bainbridge) : Near St. Mary's, Ste. Genevieve County, Missouri. 

 Observation. Probably the same as L. pisiformis (Roemer). 



LECANOCRINUS INCISUS Ringueberg. See Asaphocrinus incisus. 

 LECANOCRINUS LJEVIS Billings. See Protaxocrinus leevis. 



Lecanocrinus macropetalus Hall. 



Lecanocrinus macropetalus Hall, Pal. New York, 2, 1852, p. 199, pi. 45, figs, 

 la-h. Emmons, Man. Geology, 1860, p. 63, fig. 42. Miller, N. A. Geol. Pal., 

 1889, p. 257, fig. 348. Grabau, Bull. New York State Mus., 45, 1901, p. 160, 

 fig. 55; Bull. Buffalo Soc. Nat, Sci., 7, p. 160, fig. 55. Grabau and Shimer, 

 N. A. Index Fossils, 2, 1910, p. 564, fig. 1901, 1902. 





