'v)S Ul'LLKTlX !;!, fNITED STATES NATIONAL MUSEUM. 



Cyrtia meta (Hall). 



Spirifer racliatus (part) Hall, Pal. New York, 2, 1852, p. 66, pi. 22, figs. 2a-2c, 2t, 

 Sphifera meta Hall, 20th Rep. New York State Cab. Nat, Hist., 1867, p. 372, pi. J3, 



figs. 12, 13. 

 < Vrtia 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. 

 Xiagaran: Rochester, New York (Clinton); Milwaukee, Wisconsin (Racine). 



CYRTIA MYRTIA Billings. See Cyrtia exporrecta myrtia. 

 ( 'YRTIA RADIANS Hall and Clarke. See Cyrtia meta. 



CYRTIA TRAPEZOIDALIS var. ARRECTA Hall and Whit field. See Cyrtia exporiv-m 

 myrtia. 



CYRTIDOCRJM-S Angelin. See Lecanocri mis Hall. 



CYRTINA Davidson. Genotype: Cyrtia heteroclita Defrance. 



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

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

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

 Foss. 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 Lcitfossilien, 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 Mus., 45, 1901, p. 197; Bull. Buffalo Soc. Nat. 

 Sri., 7, 1901, p. 197. 



Cyrtina magnaplicata Weller. 



Cyrtina magnaplicata Weller, Geol. Surv. Xew Jersey Pal., 3, 1903, p. 238, pi. 



21, figs. 46-49. 

 Helderbergian (Decker Ferry): Two miles south of Tristates, Xew York. 



Cyrtina pyramidalis (Hall). 



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

 Cyrtina 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. 



CTRTOCERAS Goldfuss. Genotype: C. depressum Goldfuss. 



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

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

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

 ward, Man. Mollusca, pt. 1, 1851, p. 91. Saemann, Palseontograpbica, 3, 1852. 

 pp. 156, 161. McCoy, Brit, Pal. Rocks Foss., 1854, p. 312. Pictet, Traito 

 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 Join-., n. s., 

 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. Foss. Cephalopoda, 1882, p. 54. 

 Zittel, Handb. d. Pal., 2, 1884, p. 373. Foord, Cat. Foss. Ceph. Brit. 



