616 



FOSSIL VERTEBRATA OF NORTH AMERICA. 



[BULL. 179. 



EQUINE. 



Boule, M. 1899 A, p. 531. ( " Equides.") 

 Osborn, H. F. 1893 D, p. 137. 

 Osborn and Wortmaii 1892 A, p. 93. 



Roger, O. 1896 A, p. 175. 



Steinmann and Doderlein 1890 A, p. 782. 



Zittel, K. A. 1893 B, p. 252. 



MERYCHIPPUS Leidy. Type M. insignis Leidy. 



Leidy, J. 1856 Q, p. 311. 



Unless otherwise indicated, the following 

 authors refer to this genus under the name Pro- 

 tohippus. 



Ameghino, F. 1891 C, p. 215. 

 Cope, E. D. 1873 R, p. 420. 

 1877 K, p. 322. 

 1881 G, p. 399. 

 1884 O, p. 714. 

 1887 N, p. 1068. 

 1889 C. 

 1892 H, p. 326. (Parahippus.) 



1892 W, p. 943. (Merychippus, Parahippus.) 



1893 A, p. 20. (Protohippus; Merychippus 

 a synonym.) 



Dana, J. D. 1896 A, p. 913, fig. 1540. 

 Dawkins, W. B. 1870 A. 

 Farr, M. S. 18% A, p. 169. 

 Flower and Lydekker 1891 A, p. 380. 

 Gaudry, A. 1877 A. (Merychippus.) 

 Huxley, T. H. 1876 C, p. 294. 



Landois, 1881 A, p. 128. 



Leidy, J. 1858 E, p. 26 (Protohippus, type P. per- 

 ditus); p. 27 (Merychippus). 



1869 A, p. 275 (Protohippus); p. 292 (Mery- 

 chippus); p. 313 (Parahippus). 



1870 T, p. 127. 



1871 C, p. 360 (Protohippus); p. 361 (Mery- 

 chippus); p. 362 (Parahippus). 



Major, Fors. 1873 A, p. 103. (Merychippus.) 

 Marsh, O. C. 1877 E. 



1879 l>, p. 504. 



1892 C, p. 354. 



Matthew, W. D. 1899 A, p. 69. 

 Nicholson and Lydekker 1889 A, p. 1359 (Para- 

 hippus); p. 1360 (Protohippus). 

 Pavlow, M. 1888 A. (Protohippus, Merychippus.) 



1892 A. 



Roger, O. 1889 A. 

 Riitimeyer, L. 1862 A, p. 611, (Merychippus.) 



1877 A . ( M ery chippus. ) 



Schlosser, M. 1886 B, p. 14 (Merychippus, Para- 

 hippus) ; p. 15 (Protohippus, syn. of Hipparion). 

 Scott, W. B. 1891 D, p. 90 (Merychippus); p. 93 

 (Protohippus). 



1895 C, p. 79. (Protohippus.) 

 Steinmann and Doderlein 1890 A, p. 782 (Mery- 

 chippus); p. 783 (Protohippus). 

 Weithofer, A. 1888 A, p. 276. 

 Woodward, A. S. 1898 B, p. 337. 

 Wortman, J. L. 1882 B, vi, p. 71. 



1883 A, p. 711. 



Zittel, K. A. 1893 B, p. 252 (Merychippus); p. 255 

 (Protohippus). 



Merychippus avus (Marsh). 

 Marsh, 0. C. 1874 B, p. 253. (Protohippus.) 

 King, C. 1878 A, p. 443. (Protohippus.) 

 Marsh, O. C. 1897 C, p. 524, fig. 100. (Protohip- 

 pus.) 



Matthew, W. D. 1899 A, p. 70. (Protohippus.) 

 Trouessart, E. L. 1898 A, p. 785. (Protohippus.) 

 Miocene (Loup Fork); Oregon. 



Merychippus castilli (Cope). 

 Cope, E. D. 1885 S, p. 1208, pi. xxxvii, fig. 6. (Pro- 

 tohippus.) 



1886 W, p. 150, fig. 2. (Protohippus.) 



1893 A, p. 26. (Protohippus.) 

 Matthew, W. D. 1899 A, p. 70. (Protohippus.) 

 Roger, O. 1896 A, p. 177. (Protohippus.) 

 Trouessart, E. L. 1898 A, p. 784. (Protohippus.) 



Miocene (Loup Fork); Mexico. 



Merychippus cumminsii (Cope). 

 Cope, E. D. 1893 A, p. 67, pi. xx, fig. 7; pi. xxiii, 

 fig. 1. (Equus.) 



1894 A, p. 67. (Equus.) 

 1899 A, p. 255. (Equus.) 



Gidley, J. W. 1901, Bull. Amer. Mus. Nat. Hist., 



xiv, p. 126. (Protohippus.) 

 Matthew, W. D. 1899 A, p. 75. (Equus.) 

 Trouessart, E. L. 1898 A, p. 791. (Equus.) 

 Pliocene (Blanco); Texas, Oklahoma?. 



Merychippus fossulatus (Cope). 



Cope, E. D. 1893 A, p. 30, pis. v, vi, vii. (Proto- 

 hippus.) 



Matthew, W. D. 1899 A, p. 70. (Pliohippus.) 

 Roger, O, 1896 A, p. 177. (Protohippus.) 

 Trouessart, E. L. 1898 A, p. 784. (Protohippus.) 

 Miocene (Loup Fork); Texas. 



Merychippus insignis Leidy. 

 Leidy, J. 1856 Q, p. 311, 

 Cope, E. D. 1874 P, p. 13. (Protohippus.) 

 1889 B, p. 457. ( Protohippus. ) 



1892 W, p. 944, pi. xxvi, fig. 4 (Protohippus 

 insignis); fig. 5, (P. medius). 



1893 A, p. 25. (Syn. in part of Protohippus 

 medius; in part of P. sejunctus.) 



Hayden, F. V. 1858 B, p. 158. 

 King, C. 1878 A, p. 430. 

 Leidy, J. 1858 E, p. 27. 



1869 A, pp. 296, 402, pi. xvii, figs. 3-7. 

 1871 C, p. 361. 

 Major, Fors. 1877 A. 

 Matthew, W. D. 1899 A, p. 69. (Protohippus 



medius.) 



Osborn, H. F. 1898 I, p. 107, fig. 20. 

 Roger, O. 18% A, p. 175 (Protohippus insignis); 



p. 177 (P. medius). 



Scott, W. B. 1893 B, p. 659. (Protohippus.) 

 Trouessart, E. L. 1898 A, p. 784. (Protohippus 



sejunctus, part; P. medius, part.) 

 Weithofer, A. 1888 A, p. 278. 

 Zittel, K. A. 1893 B, p. 252. fig. 196. 



Miocene (Loup Fork); South Dakota, Kansas, 



Oregon, Mexico. 



