ORT.] 



CEPHALOPODA. 



447 



cato, Billings, 1865, Pal. Foss., vol. 1, p. 

 314, Quebec Gr. 



catulus, Billings, 1865, Pal. Foss., vol. 1, 

 - p. 313, Quebec Gr. 



chemungense, Swallow, 1860, Trans. St. 

 Louis Acad. Sci., vol. 1, p. 660, Waverly 

 or Choteau Gr. 



chesterense, Swallow, 1863, Trans. St. 

 Louis Acad. Sci., vol. 2, p. 98, Kaskas- 

 kia Gr. 



chouteauense, Swallow, I860, (O. che- 

 mungense var. choteauense,) Trans. St. 

 Louis Acad. Sci., vol. 1, p. 660, Waverly 

 or Choteau Gr. 



cincinnatiense, S. A. Miller, 1875, Cin. 

 Quar. Jour. Sci., vol. 2, p. 127, and 

 Jour. Cin. Soc. Nat. Hist., vol. 4, p. 319, 

 Hud. Riv. Gr. 



cingulum, Hall, 1879, Pal. N. Y., vol. 5, 

 p. 240, Schoharie grit. 



clathratum, Hall, 1847, Pal. N. Y., vol. 1, 

 p. 201, Trenton Gr. 



clavatum, Hall, 1852, Pal. N. Y., vol. 2, p. 

 104, Clinton Gr. 



clavatum, Hall, 1859. The name was ap- 

 propriated. See O. desideratum. 



clinocatneratum, Winchell, 1862, Am. 

 Jour. Sci., 2d ser., vol. 33, p. 356, Mar- 

 shall Gr. 



clintoni, Hall, 1877, 1st Ed. Am. Pal. 

 Foss., p. 244, Chazy Gr. Proposed in- 

 stead of 0. subarcuatum, Hall, 1847, 

 which was preoccupied. 



clouei, Barrande, 1869, Sys. Sil. de Boh., 

 4me ser., p. viii, pi. 432 to 434, Que- 

 bec Gr. 



cochleatum, Hall, 1879, Pal. N. Y., vol. 5. 

 The name was preoccupied by Schlot- 

 heim in 1813. See O. warrenense. 



collatum, Hall, 1879, Pal. N. Y., vol. 5, p. 

 252, Schoharie grit. 



colon, White, 1874, Rep. Invert. Foss., p. 

 10, and Geo. Sur. W. 100th Mer., vol. 4, 

 p. 56, Quebec Gr. 



columnare, Hall, 1860, Rep. Progr. Geo. 

 Sur. Wis. The name was preoccupied 

 by Mark in 1857. See O. orus. 



conicum, Castelnau, 1843, Syst. Sil., p. 29. 

 The name was preoccupied by His- 

 inger. 



consortale, Beecher, 1888, Pal. N. Y., vol. 

 7, p. 29, Chemung Gr. 



constrictum, Vauuxem, 1842, Geo. Rep. 

 3d Dist. N. Y., p. 152, and Pal. N. Y., 

 vol. 5, pt. 2, p. 288, Ham. Gr. 



constrictum, Conrad, 1838. Not defined so 

 as to be recognized. 



constrictum, see Qncoceras constrictum. 



coralliferum. Hall, 1847, Pal. N. Y., vol. 

 1, p. 312, Utica and Hud. Riv. Grs. 



cornuorvx, Whitfield, 1886, Bull. Am. 

 Mus. Nat. Hist,, vol. 1, p. 320, Birds- 

 eye Gr. 



cornuum, Billings, 1857, Rep. of Progr. 

 Geo. Sur. Can., p. 329, Chazy Gr. 



crebescens, Hall, 1867, 20th Rep. N. Y. 

 Mus. Nat. Hist., p. 354, Niagara Gr. 



crebristriatum, Meek & Worthen, 1865. 

 Proc. Acad. Nat. Sci. Phil., p. 255, and 



Geo. Sur. 111., vol. 6, p. 503, Niag- 

 ara Gr. 

 creon, Hall, 1879, Pal. N. Y., vol. 5, p. 



260, Schoharie grit, 

 cribrosum, Geinitz, 1866, Carb. und Dyas 



in Neb., p. 4, and Pal. E. Neb., p. 234, 



Coal Meas. 

 crocus, Billings, 1866, Catal. Sil. Foss. 



Antic, p. 22, Hud. Riv. Gr. Proposed 



instead of O. perannulatum, which was 



preoccupied, 

 crotalum, Hall, 1862, 15th Rep. N. Y. 



Mus. Nat. Hist., p. 78, Ham. Gr. Type 



of Hyatt's genus Spyroceras. 

 cuvicri, Troost, 1838, (Conotubularia cu- 



vieri,) Mem. Soc. Geo. de France, t. 3, 



p. 88, Low. Sil. 

 dagon, Beecher, 1888, Pal. N. Y., vol. 7, 



p. 28, Up. Held. Gr. 

 darwini, Billings, 1868, Pal. Foss., vol. 1, 



p. 161, Guelph Gr. 

 dawsonanum, S. A. Miller, 1883, 2d Ed. 



Am. Pal. Foss, p. 307, Carboniferous. 



Proposed instead of O. perstriclum, 



Dawson, in Acadian Geology, p. 312, 



fig. 129, as the name was preoccupied 



by Barrande. 

 decrescens, Billings, 1857, Rep. of Progr. 



Geo. Sur. Can., p. 337, Black Riv. and 



Trenton Gr. 

 defrancii, Troost, 1838, (Conotubularia de- 



francei,) Mem. Soc. Geo. de France, t. 3, 



p. 90, Low. Sil. 

 demus, Hall, 1879, Pal. N. Y., vol. 5, p. 



311, Chemung Gr. 

 deparcum, Billings, 1859, Can. Nat. and 



Geo., vol. 4, p. 363, Calciferous Gr. 

 desideratum, Hall, 1877, 1st Ed. Am. Pal. 



Foss., p. 244, Low. Held. Gr. Proposed 



instead of O. clavatum, Hall, 1859, which 



was preoccupied, 

 diffidens, Billings, 1865, Pal. Foss., vol. 1, 



p. 174, Chazy Gr. 

 directum, Beecher, 1888, Pal. N. Y., vol. 7, 



p. 27, Up. Held. Gr. 

 dolatum, Dawson, 1868, Acad. Geol. p. 



311, Carboniferous, 

 drummondi, Billings, 1865, Pal. Foss., vol. 



1, p. 173, Black Riv. Gr. 

 duramen, Beecher, 1888, Pal. N. Y., vol. 



7, p. 25, Schoharie grit, 

 duseri, Hall & Whitfield, 1875, Ohio Pal., 



vol. 2, p. 97, Hud. Riv. Gr. 



Fig. 751.— Orthoceras dyerl. 



dyeri, S. A. Miller, 1875, Cin. Quar. Jour. 

 Sci., vol. 2, p. 125, and Jour. Cin. Soc. 

 Nat. Hist., vol. 3, p. 236, Hud. Riv. Gr. 



