HAY.] 



CATALOGUE. 



657 



PERCHCERUS Leidy. Type Palicochcerus probus Leidy. 



L, ;>!>/. J. 1869 A, p. 194. 



Cope, E D. 1879 A, p. 44. (ThinohyUs.) 



1879 E, p. 374. (Thinohyus.) 



1884 O, p. 37. (Thinohyus.) 



1887 B, p. 384. (Thinohyus.) 



1888 E, p. 62. (Thinohyus.) 

 1894 E, p. 869. (Thinohyus.) 



Cope and Wortman 1884 A, p. 17. (Thinohyus.) 



Lvi.ly. J. 1871 C, p. 353. 



M;ir>h. (). C. 1875 B, p. 248. (Thinohyus type T. 



lentus Marsh.) 



1S77 E. (Perchcerus, Thinohyus.) 

 1894 L, p. 271. 



Nicholson and Lydekker'1889 A, p. 1322. (Per- 

 chrerus, Thinohyus.) 



Schlosser, M. 1886 B, p. 88. 



Scott, W. B. 1892 A, p. 438. (Perchoerus, Thino- 

 hyus.) 



Stehlin, H. G. 1889 A, p. 112. (Perchoerus); p. 113 

 (Tinohyus). 



Wilckens, M. 1885 B, p. 304. 



Zittel, K. A. 1893 B, p. 342. (Perchcerus, Thino- 

 hjrus.) 



Perchoerus antiquus Marsh. 

 Harsh, 0. C. 1893 D, p. 411. pi. x, fig. 1. [Perchoe- 

 rus (Dicotyles).] 



1870 1, p. 11. (Dicotyles antiquus; no descrip- 

 tion.) 



1894 L, p. 271, fig. 28. (Thinohyus.) 

 Matthew, W. D. 1899 A, p. 60. (Perchoerus.) 

 Roger, O. 1896 A, p 207. (Thinohyus.) 

 Stehlin, H. G. 1899 A, p. 114. (Tinohyus.) 

 Trouessart, E. L. 1898 A, p. 815 (Perchcerusl; p. 816 

 (Thinohyus.) 

 Miocene; New Jersey. 



Perchoerus lentus (Marsh). 



Marsh. 0. C. 1875 B, p. 248 (Thinohyus.) 



Cope, E. D. 1879 E. p. 375 (Thinohyus.; 



King, C. 1871 A, p. 424. (Thinohyus.) 



Marsh. O. C. 1894 L, p. 271, fig. 26. (Thinohyus.) 



Matthew, W. D. 1899 A p. 64. (Thinohyus.) 



Roger, O. 1896 A, p. 207. (Thinohyus ) 



Scott, W. B. 1892 A, p. 438, fig 8*. (Thinohyus.) 



Stehlin, H. G. 1899 A, p. 114 (Tinohyus); p. 193. 



(Thinohyus.) 



Trouessart, E. L. 1898 A. p. 815. (Thinohyus.) 

 Miocene (John Day) ; Oregon. 



Perchcerns nanus (Marsh). 



Marsh, 0. C. 1894 L, p. 271, tig. 28. (Thinohyus.) 



Matthew, W. D. 1899 A, p. 60. (Thinohyus.) 



Roger, O. 1896 A, p. 207. (Thinohyus.) 



Stehlin, H. G. 1899 A, p. 113 (Tinohyus); pp. 193, 



273. 



Trouessart, E. L. 1898 A, p. 816. (Thinohyus.) 

 Oligocene (White River); South Dakota. 



Perchoerus probus Leidy. 



Leidy, J. 1856 J, p. 165. (Palaeochoerus.) 



Hayden, F. V. 1858 B, p. 157. (Palseochcerus.) 



King, C. 1878 A, p. 411. 



Leidy, J. 1869 A, pp. 194, 389, pi. xxi, figs. 20-27. 



1871 C, p. 353. 



Matthew, W. D. 1899 A, p. 60. 

 Roger, 0. 1896 A, p. 207. 

 Scott, W. B. 1892 A, p. 438, fig. 8 s . 

 Stehlin, H. G. 1899 A, pp. 112, 193. 

 Wilckens, M. 1885 B, p. 305. 



Oligocene (White River); South Dakota. 



Perchcerus robustus (Marsh). 

 Marsh, 0. C. 1894 F, p. 94. (Thinohyus.) 

 Matthew, W. D. 1899 A, p. 60. (Thinohyus.) 

 Stehlin, H. G. 1899 A, p. 114 (Tinohyus) ; p. 193 

 Trouessart, E. L. 1898 A, p. 816. (Thinohyus.) 

 Oligocene (White River) ; South Dakota. 



Perchcerus socialis (Marsh). 

 Marsh, 0. C. 1875 B, p. 249. (Thinohyus.) 

 Cope, E. D. 1879 B, p. 58. (Palseochcerus.) 

 King, C. 1878 A, p. 424. (Thinohyus.) 

 Marsh, O. C. 1894 L, p. 271, fig. 25. (Thinohyus. ) 

 Matthew, W. D. 1899 A, p. 64. (Thinohyus.) 

 Stehlin, H. G. 1899 A, p. 113. (Tinohyus.) 

 Trouessart, E. L. 1898 A, p. 816. (Thinohyus.) 

 Miocene (John Day); Oregon. 



LEPTOCHCERUS Leidy. Type L. spectabilis Leidy. 



Leidy. J. 1856 I, p. 88. 

 Cope, E. D. 1894 E, p. 869. 

 Leidy, J. 1869 A, p. 197. 



1871 C, p. 354. 



Nicholson and Lydekker 1889 A, p. 1323. 

 Schlosser, M. 1886 B, p. 85. 

 s.-i.tt, W. B. 1891 A, p. 46. 

 Zittel, K. A. 1893 B, p. 341. 



Leptochcerus gracilis Marsh. 



Uir*!,. O. C. 1894 L, p. 272, figs. 29, 30. 

 Matthew, W. D. 1899 A, p. 60. 

 Roger, O 1896 A, p. 206. 



Oligocene (White River); South Dakota. 



Bull. 179 42 



Leptochcerus spectabilis Leidy. 



Leidy, J. 1856 I, p. 88. 



Hayden, F. V. 1858 B, p. 157. 



King, C. 1878 A, p. 411. 



Leidy, J. 1869 A, pp. 197, 389, pi. xxi, figs. 14-19. 



1871 C, p. 354. 



Matthew, W. D. 1899 A. p. 59. 

 Roger, O 18% A, p. 206. 

 Trouessart, E. L. 1898 A, p. 814. 

 Wilckens, M. 1885 B, p. 305. 



Oligocene (White River) ; South Dakota. 



