,'i4S lU'LLKl'I.N HiJ, I'WITED STATKy iS'ATlOi^AL ML'ttKUM. 



Cyrtta meta (HaU). 



Spirifer radiatus (part) Hall, Pal. Ne^\■ York, 2, 1852, p. 60, pi. 22, figa. 2ar-2c, :3l.. 

 Spirifera meta Hall, 20th Rep. New York State Cab. Nat. Hist., 1867, p. 372, pi. 1 S, 



figs. 12, 13. 

 (ATtia radians Hall and Clarke, Pal. New York, 8, pt. 2, 1893, pp. 42, 362, pi. 28, 



figs. 4, 5, 50, 52; pi. 39, fig. 33. 

 Niagaran: Rochester, New York (Olintou); Milwaukee, AMsconsin (Racine). 



Tyrtia myrtia Billings. See Cyrtia exponecta nijTtia. 



Cyrtia radi.\ns Hall and Clarke. See Cyrtia meta. 



Cyrtia trapezoidaijs var. arrecta Hall and Whitfield. See C>Ttia exporreota 

 myi'tia. 



Cyrtidoorinu.s Angeliii. See Leoanocrinus Hull. 



('YRTINA Davidson. Genotype: Cyrtia he teroclita Dcfa-ance. 



Cyrtina Davidson, Mou. British Carb. Brach. Pal. Soc, 1859, p. 66.— Hall, Pal. 

 New York, 4, 1867, p. 263; 20th Rep. New York State Cab. Nat. Hist., 18G7, 

 p. 251.— Zittel, Handb. d. Pal., 1, 1880, p. 683.— Davidson, Mon. British 

 Fobs. Brach., 5, Sil. Suppl., Pal. Soc, 1882, p. 80.— Herrick, Bull. Sci. Lab. 

 Denison Univ., 4, 1888, p. 14. — Nettelroth, Kentucky Fossil Shells, Mem. 

 Kentucky Geol. Surv., 1889, p. 95.— Miller, N. A. Geol. Pal., 1889, p. 342.— 

 Hall and Clarke, Pal. New York, 8, pt. 2, 1893, p. 43; 13th Ann. Rep. New 

 York State Geol., 1895, p. 763.— Koken, Die Leitfossilien, Leipzig, 1896, p. 

 243, figs. 204, 6.— Grabau, Bull. Buffalo Soc. Nat. Sci., 6, 1899, p. 219.— 

 Schuchert, Zittel-EastmanTextb. Pal., 1, 1900, p. 335, 2d ed., 1913, p. 412.— 

 Grabau, Bull. New York State Muh., 45, 1901, p. 197; Bull. Buffalo Soc. Nat. 

 Sci., 7, 1901, p. 197. 



Cyrtlua magnaplicata Weller. 



Cyrtina magnaplicat^ Weller, Gedl. y-\n-v. N*ow Jersey Pal.. 3, 1903, p. 238, jil. 



21, figs. 46-49. 

 Helderbei-gian (Decker Ferry): Two miles ^()llth of Tristates, New York. 



Cyrtina pyramidalls (Hall). 



Spirifer pyramidalis Hall, Pal. New York, 2, 1852, p. 266, pi. 54, fig. 7. 



C>Ttina pyramidalis Miller, N. A. Geol. Pal., 1889, p. 343.— Grabau, Bull. New 



York State Mus., 45, 1901, p. 197, fig. 115; Bull. Buffalo Soc. Nat. Sci., 7, 



1901, p. 197, fig. 115. 

 Clinton (Rochester): Lewiston, New York. 



CTETOCERAS Goldfuss. Genotype: C. depressum Goldfuss. 



Cyrtoceras Goldfuss, in De la Beche's Handbuch dor Geognosie, 1832, p. 536. — 

 Portlock, Rep. Geol. Londondeny, 1843, p. 411. — McCoy, Syn. Char. Carb. 

 Foss. Ireland, 1844, p. 11.— D'Orbigny, Prodr. de Pal., 1," 1849, p. 1.— Wood- 

 ward, Man. MoUusca, pt. 1, 1851, p. 91. — Saemann, Palseontographica, 3, 1852. 

 pp. 156, 161.— McCoy, Brit. Pal. Rocka Fosa., 1854, p. 312.— Pictet, Traits 

 de Pal., 2d ed., 2, 1854, p. 652.— Barrande, Bull. Soc. Geol. France, 2d ser., 12, 

 1855, p. 158.— Emmons, Amer. Geology, l,pt. 3, 1855, p. 147.— Billings, Cana- 

 dian Nat. Geol., 2, 1857, p. 136, pi. 2, fig. 3. — Chapman, Canadian Jour., n. e., 

 2, 1857, p. 266; 8, 1863, p. 22.— Salter, Geol. Surv-. Canada, dec. 1, 1859, p. 

 31.— Barrande, Syst. Sil. Centre Boheme, 2, pt. 1, 1867, p. 375.— Miller, Cin- 

 cinnati Quart. Jour. Sci., 2, 1875, p. 131.— Hall, Pal. New York, 5, pt. 2, 

 1879, pp. 354, 368, 389.— Blake, Mon. Brit. Fosa. Cephalopoda, 1882, p. 54.— 

 Zittel, Handb. d. Pal.. 2. 1884, p. 373.— Foord, Oat. Foss. Ceph. Brit. Mus., 



