612 



FOSSIL VERTEBRATA OF NORTH AMERICA. 



[BULL. 179. 



Cope, E. D. 1873 U, p. 2. (Orotherium sylvati- 

 cum.) 



1877 K, p. 262. (Hyracotherium sylvati- 



cum.) 



Matthew, W. D. 1899 A, p. 45. (Hyracothcrium.) 

 Roger, O. 1896 A, p. 169. (Hyracotherium.) 

 Trouessart, E. L. 1898 A, p. 774. 

 Eocene (Bridger); Wyoming. 



Orohippus procyoninus Cope. 

 Cope, E. D. 1872 N, p. 466. ( Hclotherium. ) 



1873 E, p. 606. 



1875 C, pp. 20, 22. 



1877 K, pp. 262, 266. (Hyracotherium.) 



1884 O, pp. 631, 711, pi. xxiv, fig. 22. (Lamb- 

 dotherium.) 



1887 S, p. 45. (Lambdotherium.) 

 Marsh, O. C. 1873 K, p. 249. (Syn.?of O. pumilis.) 

 Matthew, W. D. 1899 A, p. 45. ( Hyracotherium. ) 

 Roger, 0. 1896 A, p. 193. (Lambdotherium.) 

 Eocene (Bridger); Wyoming. 



Orohippus pumilis Marsh. 



Marsh, O. C. 1872 I, p. 207. 



Cope, E. D. 1873 E, p. 606. (Syn. of O. procyoni- 

 nus.) 



1875 C, p. 22. (Syn. of O. procyoninus.) 

 1877 K, p. 266. (Syn.? of Hyracotherium 

 procyoninum.) 



Marsh, O. C. 1874 B, p. 249. 

 Matthew, W. D. 1899 A, p. 45. 

 Osborn, Scott, and Speir 1878 A, p. 24. 

 Roger, O. 1896 A, p. 170. (Pachynolophus.) 

 Trouessart, E. L. 1898 A, p. 773. 

 Eocene (Bridger); Wyoming. 



Orohippus sylvaticus (Leidy). 



Leidy, J. 1870 T, p. 126. (Lophiotherium.) 



Cope, E. D. 1884 O, pp. 631, 647, 652. (Pliolophus.) 



Leidy, J. 1871 C, p. 358. (Lophiotherium.) 

 1872 B, p. 364. (Lophiotherium.) 

 1873 B, pp. 69, 327, pi. vi, figs. 33-35. (Lophio- 

 therium. ) 



Matthew, W. D. 1899 A, p. 45. 



Roger, 0. 1896 A, p. 170. (Pachynolophus.) 



Trouessart, E. L. 1898 A, p. 773. 

 Eocene (Bridger); Wyoming. 



Orohippus uintanus (Marsh). 

 Marsh, O. C. 1872 I, p. 217. (Orotherium. ) 

 Cope, E. D. 1881 D, p. 199. (Orotherium.) 



1884 O, p. 651. (Pliolophus vintanus.) 

 Matthew, W. D. 1899 A, p. 45. 

 Roger, 0. 1896 A, p. 170. (Pachynolophus.) 

 Trouessart, E. L. 1898 A, p. 777, in part. (Epihip- 

 pus uintensis.) 

 Eocene (Bridger); Wyoming. 



EPIHIPPUS Marsh. Type E. gradlis Marsh. 



Marsh, 0. C., 1878, Pop. Sci. Month., p. 678. 

 Cope, E. D. 1887 N, pp. 1061, 1063. 



1890 C, p. 470. 



1892 S, p. 411. 



Flower and Lydekker 1891 A, p. 374. 

 Marsh, O. C. 1879 D, p. 504. (No definition.) 



1892 C, p. 353. 



1898 E, p. 568. 



Matthew, W. D. 1899 A, p. 49. 

 Nicholson and Lydekker 1891 A, p. 1358.. 

 Osborn, H. F. 1890 D, pp. 506, 529. 

 Schlosser, M. 1886 B, p. 14. 

 Steinmann and Doderlein 1890 A, p. 780. 

 Wortman, J. L. 18% A, p. 92. 

 Zittel, K. A. 1893 B, p. 244. 



Epihippus gracilis Marsh. 



Marsh, O. C. 1871 D, p. 38. ( Anchitherium. ) 



1878, in King, C. 1878 A, p. 407. 



1874 B, p. 249. (Orohippus.) 



Matthew, W. D. 1899 A, p. 49. 



Roger, O. 1896 A, p. 171 (Epihippus); p. 174 



(Mesohippus?). 



Scott and Osborn 1887 A, p. 259. 

 Trouessart, E. L. 1898 A, p. 777 (Epihippus); p. 781 



(Mesohippus). 

 Eocene (Uinta); Utah. 



Epihippus uintensis Marsh. 



Marsh, 0. C. 1875 B, p. 247. (Orohippus.) 



1878, in King, C. 1878 A, p. 407. 

 Matthew, W. D. 1899 A, p. 49. 

 Osborn, H. F. 1890 D, p. 529, pi. xi, figs. 3,5. 



1895 A, p. 98. 

 Roger, 0. 18% A, p. 171. 

 Scott and Osborn 1887 A, p. 259. 

 Trouessart, E. L. 1898 A, p. 777, in part. 

 Zittel, K. A. 1893 B, p. 245, fig. 184. 

 Eocene (Uinta); Utah. 



MIOHIPPUS Marsh. Type M. annectens Marsh. 



Marsh, 0. C. 1874 B, p. 249. 



Ameghino, F. 1896 A, p. 442. (Mesohippus.) 



Cope, E. D. 1874 B, p. 496. (Anchitherium.) 



1881 G, p. 399. (Mesohippus.) 



1884 O, p. 714. (Anchitherium.) 



1887 N, p. 1067. (Mesohippus.) 



1892 S, p. 412. (Miohippus.) 



1894 D, p. 791. (Mesohippus, Miohippus.) 

 Dana, J. D. 18% A, p. 913, fig. 1540. (Miohippus, 



Mesohippus.) 



Farr, M. S. 1896 A, p. 150. (Mesohippus.) 

 Huxley, T. H. 1876 C, pp. 292, 294. (Miohippus, 

 Mesohippus.) 



Landois, 1881 A, p. 128 (Protohippus) ; p. 29 (Mes- 

 ohippus) . 



Lydekker, R. 1886 A, p. 45. (Mesohippus.) 

 Marsh, O. C. 1874 D, p. 66. (Miohippus.) 



1875 B, p. 248. (Mesohippus, type Anchi- 

 therium bairdi.) 



1876 G, p. 61. (Mesohippus. ) 



1877 E, p. 359. (Miohippus, Mesohippus.) 

 1879 D, p. 504. (Miohippus, Mesohippus.) 

 1892 C, p. 354. (Miohippus, Mesohippus.) 

 1898 E, p. 568. (Miohippus, Mesohippus.) 



Nicholson and Lydekker 1889 A, p. 1358 (Meso- 

 hippus); p. 1359 (Miohippus). 



