HAY. 



CATALOGUE. 



639 



Leidy, J. 1872 B, p. 361. 



1872 C, p. 19. 



1873 B, pp. 60, 327, pi. ii, figs. 11, 12; pi. iv, 

 figs. 9-18; pi. xx, figs. 25, 26. 



Marsh, O. C. 1871 D, p. 36. (Lophiodon bairdi- 

 anus.) 



1884 F, p. 64, fig. 71. ( H. bairdianus. ) 

 Matthew, W. D. 1899 A, p. 46. 

 Osborn, H. F. 1890 D, p. 505. 



1892 B, p. 764. 



1898 I, p. 81, fig. 1; p. 88, fig. 6; p. 89, fig. 8; 

 p. 128, fig. 33. 



1898 Q, p. 9. 



Osborn, Scott, and Speir 1878 A, p. 49. 

 Osborn and Wortman 1895 A, p. 367, figs. 9-11. 

 Pavlow, M. 1892 A. 

 Roger, 0. 18% A, p. 185. 

 Trouessart. E. L. 1898 A, p. 744. 



Eocene (Bridger); Wyoming, Utah. 



Hyrachyus eximius Leidy. 

 Leidy, J. 1871 K, p. 229. 

 Cope, E. D. 1873 E, p. 595. 



1873 H, p. 213. 



1884 O, pp. 660, 662, pi. xxiiio, fig. 1; pi. liii, 

 fig. 3; pis. liv. Iv, Iva; pi. Iviiia, figs. 5, 6. 

 Leidy, J. 1871 B, p. 373. 



1872 B, p. 361. 



1873 B, pp. 66, 327, pi. iv, figs. 19, 20; pi. xix, 

 fig. 5; pi. xxvi, figs. 9, 10. 



Matthew, W. D. 1899 A, p. 46. 

 Osborn, H. F. 1892 I, p. 764. 

 Osborn, Scott, and Speir 1878 A, pp. 49, 52. 

 Pavlow, M. 1892 A, p. 171. 

 Roger, 0, 1896 A, p. 185. 

 Trouessart, E. L. 1898 A, p. 744. 

 Zittel, K. A. 1893 B, p. 284, figs. 224, 226. 

 Eocene (Bridger); Wyoming. 



Hyrachyus imperialis Osb., Scott, and 



Speir. 



Osborn, Scott, and Speir 1878 A, p. 50. 

 Cope, E. D. 1884 O, p. 660. 

 Matthew, W. D. 1899 A, p. 46. 



Trouessart, E. L. 1898 A, p. 744. 

 Eocene (Bridger); Wyoming. 



Hyrachyus implicatus Cope. 

 Cope, E. D. 1873 U, p. 5, specimen 2. 

 1873 E, p. 604. 



1884 O, pp. 660, 675, 676, pi. Iviii, figs. 6, 7 

 (H. implicatus) ; p. 660 (H. intermedius). 

 Matthew, W. D. 1899 A, p. 46. 

 Osborn, Scott, and Speir 1878 A, p. 51 (H. impli- 

 catus); p. 52 (H. intermedius, not of Filhol); p. 

 52 (H. crassidens). 

 Roger, 0. 1896 A, p. 185. 



Trouessart, E. L. 1898 A, p. 744. (H. implicatus, 

 H. intermedius.) 

 Eocene (Bridger); Wyoming. 



Hyrachyus modestus Leidy. 

 Leidy, J. 1870 O, p. 109. (Lophiodon.) 

 Cope, E. D. 1884 O, p. 660. 

 Leidy, J. 1871 C, p. 357. (Lophiodon.) 

 1872 B, p. 361. 



1872 C, p. 20. 



1873 B, pp. 67, 367, pi. ii, figs. 11, 13. 

 Matthew, W, D. 1899 A, p. 46. 



Roger, O. 18% A, p. 185. 

 Trouessart, E. L. 1898 A, p. 744. 

 Eocene (Bridger); Wyoming. 



Hyrachyus paradoxus Osb., Scott, and 

 Speir. 



Osborn, Scott, and Speir 1878 A, pp. 53, 135. 

 Matthew, W. D. 1899 A, p. 46. 

 Eocene (Bridger); Wyoming. 



Hyrachyus princeps Marsh. 



Marsh, O. C. 1872 G, p. 125. 

 Cope, E. D. 1873 E, p. 595. 



1873 U, p. 6. 



1884 O, pp. 660, 661, pi. Hi, fig. 4 

 Matthew, W. D. 1899 A, p. 46. 

 Roger, O. 18% A, p. 185. 

 Trouessart, E. L. 1898 A, p. 744. 

 Eocene (Bridger); Wyoming. 



COLONOCERAS Marsh. Type C. agrestis Marsh. 



Marsh. 0. C. 1873 H, p. 407. 

 Brandt, J. F. 1878 A, p. 25. 

 Cope, E. D. 1879 C, p. 233. 



1881 G, p. 381. 



1884 O, p. 618. 



1887 N, p. 994. 

 Marsh, O. C. 1877 E. 



1884 F, fig. 10. 



1897 D, p. 166. 



Nicholson and Lydekker 1889 A, p. 1356. 

 Osborn, H. F. 1890 D, p. 505. 



Scott, W. B. 1883 A, p. 53. 

 Scott and Osborn 1883 A, p. 20. 

 Zittel, K. A. 1893 B, p. 285. 



Colonoceras agrestis Marsh. 

 Marsh, O. C. 1873 H, p. 407. 



1897 D, p. 167, fig. 2. 

 Matthew, W. D. 1899 A, p. 46. 

 Roger, 0. 18% A, p. 185. 

 Trouessart, E. L. 1898 A, p. 746. 

 Eocene (Bridger); Wyoming. 



TRIPLOPODIN^E. 



Cope, E. D. 1881 G, pp. 378, 382. (Triplopodidse.) 

 18810. (Triplopodidse.) 

 1884 O, p. 615. (Triplopidse.) 

 J887 N, pp. 992, 993. (Triplopodidee.) 



Nicholson and Lydekker 1889 A, p. 1356. (Triplo- 

 podidse.) 



Osborn, H. F. 1898 I, p. 85. 

 Osborn and Wortman 1892 A, p. 93. 



