HAY.] 



Cricotus crassidiscus Cope. 

 Cope, E. D. 1884 I, p. 28. 



1878 B, p. 522. (C. heteroclitus, in part.) 

 1884 P, p. 39, text fig. 7, pi. v. (See C. hete- 

 roclitus.) 



1888 AA, p. 246, fig. 3. 

 1888 BB, p. 286. 

 Williston, S.W. 1897 B, p. 54. 



1898 J, p. 121. 



Zitti'l. K. A. 1890 A, p. 351, fig. 331; p. 395, fig. 384. 

 (C. heteroclitus; not of Cope.) 

 Permian; Texas. 



Cricotus gibsoni Cope. 

 Cope, E. J). 1877 E, p. 185. 

 Case, E. C. 1900 A, p. 709, figs. 15a-15c. 

 Cope, E. D. 1881 K, p. 163. 



1884 P, p. 39. 



1888 BB, p. 286. 

 Permian; Illinois. 



Cricotus heteroclitus Cope. 

 Cope, E. D. 1875 T, p. 405. 



CATALOGUE. 421 



Case, E. C. 1900 A, p. 708, pi. i, figs. 12a-12d; 13, 14. 

 Cope, E. D. 1877 E, p. 186. (C. discophorus.) 



1877 N, p. 63. 



1878 B, p. 623. (C. discophorus.) 

 1881 K, p. 163. 



1884 I, p. 29. 



1884 P, p. 39, fig. 7 and pi. v. (See C. cras- 

 sidiscus.) 



1888 AA, p. 253, pi. i, figs. 7, 8. 

 1888 BB, p. 286. 



Lydekker, R. 1890 A, p. 176, fig. 42. 

 Permian; Illinois. 



Cricotus hypantricus Cope. 

 Cope, E. D. 1884 I, pp. 29, 30. 



1888 AA, p. 253, pi. i, figs. 2-6. 



Permian; Texas. 

 Cricotus sp. indet. 

 Case, E. C. 1900 A, p. 709, pi. v, figs. 13a-16. 

 ' Permian; Illinois. 



ANTHRACOSAURID.E. 



Cope, E. D. 1875 X, p. 10. 



Atthey, T. 1876 A, p. 146, pis. viii-xi. (Anthraco- 



saurus. ) 

 Hancock and Atthey 1869 A, p. 313. (Anthraco- 



saiirus.) 



Huxley, T. H. 1863 A. (Anthracosaurus.) 

 Lydekker, R. 1890 A, p. 157. 

 Miall, L. C. 1875 A, p. 159. (Anthracosaurus.) 

 Nicholson ant. Lydekker 1889 A, p. 1033. 

 Zittel, K. A. 1890 A, p. 398. (Gastrolepidoti.) 



EOSAURUS Marsh. Type E. acadianus Marsh. 



Mirth, O. C. 1862 B. 



Agassiz, L. 1862 A. 



Cope, E. D. 1869 M, p. 30. 



Fritsch, A. 1883 A (1879), p. 61. 



Huxley, T. H. 1863 A, p. 62. 



Lydekker, R. 1890 A, p. 166. 



Marsh, O. C. 1863 A. 



Miall, L. C. 1875 A, p. 186. 



Miller, S. A. 1889 A, p. 621. 



Nicholson and Lydekker 1889 A, p. 1037. 



Zittel, K. A. 1890 A, p. 400. 



The position of Eosaurus in this family is not 

 at all established. 



Eosaurus acadianus Marsh. 



Marsh, O. C. 1862 B, pis. i, ii. 

 Cope, E. D. 1869 M, p. 30. 

 Dawson, J. W. 1863 A, p. 431. 



1863 C, p. 440. 



1S63D, pp. 275, 283. 



1868 A, p. 382, fig. 148. 



1878 A, p. 382, fig. 148. 

 Huxley, T. H. 1863 A, p. 62. 

 Lesley, J. P. 1895 A, pi. dlxxii. 

 Lydekker, R. 1890 A, p. 166. 

 Marsh, O. C. 1862 A. (No description.) 



Miller, S. A. 1889 A, p. 621, fig. 1184. 

 Coal-measures; Nova Scotia. 



ERYOPID^E. 



Cope, E. D. 1882 T. 



1882 B, pp. 460, 461. 

 1884 P, p. 28. 



1891 N, p. 29. 



Lydekker, R. 1890 A, p. 191. 



Nicholson and Lydekker 1889 A, p. 1029. 



ERYOPS Cope. Type E. megacephalus Cope. 



Cope, E. D. 1877 E, p. 188. 



Baur G. 1888 C, p. 13. 



Baur and Case 1899 A, p. 3, footnote. 



Broili, F. 1899 A, p. 84. 



Cope, E. D. 1878 B, p. r !5 (Epicordylus, type E. 

 erythroliticus); p. 520 (Eryops); p. 521 (Pari- 

 oxys, type P. ferricohis) : p. 526 (Rhachitomus, 

 type R. valetis). 



