Sarcotliraustes, Dissacus, Plesidissacus, Pachyaena. 
225 
1333. fbathygnathus, Cope, Trans. Am. phil. Soc., 
1888, 1. c., p. 321; Scott, 1. c.. 1892. 
p. 303. 
1334. fcrassicuspis. Cope, Tert. Vert., 1884, 
p. 201, pl. 23 e; Trans. Am. phil. Soc., 
1888, 1. c., p. 323; Scott, 1. c.. 1892, 
p. 303. 
fEocaen. infer. Nov.- 
Mexico. 
t Eocaen. infer. Nov.- 
Mexico. 
Familia lY. f Mesonychidae. 
286. t Dissacus, Cope, 1881. 
Mesonyx, p.. Cope (antea). 
133.0. jnavajovius, Cope, Am.Nat., 1881, p. 1019; 
Tert. Vert., 1884, p. 345, pl. 24g, 25 c; 
Trans. Am. phil. Soc., 1888, p. 344; Scott, 
1’roc. Ac. Nat. Sc. Philad., 1892, p. 304. 
1336. f carnifex, Cope, Am.Nat., 1882, p. 834; 
Tert. Vert.. 1884, p. .345, 741. pl. 24g; 
Osborn et Earle, Ilull. Am. Mus. Nat. Hist., 
VH, 189.5, p. 30, fig. 8, 9. 
1337. -fleptognathus, Osborn, Bull. Am. Mas. Nat. 
Eist.. IV. 1892, p. 112, tig. 10. 
t Eocaen. infer. Nov.- 
Mexico, Puerco. 
f Eocaen. infer. Nov.- 
Mexico. 
t Eocaen. Wyoming 
(Wasatch). 
287. tPlesidissacus, Lemoine, 1893. 
JHssaciitt, p., Lem., 1891. 
1338. teuropaeus, Lemoine, Bull. Soc. Geol., tl^jocaeii. infer. Gallia 
1891, XIX, p. 271, pl. X, fig. 2; 1893, orient., Cemay 
XXI, p. 362, pl. IX, fig. 2, pl. X. fig. II. (Keims). 
288. tPachyaena, Cope. 1874. 
Mesonyx, p., Cope (antea). 
1339. fossifraga. Copo, ReportWestof 100 merid. f Eocaen. Wyoming 
(1874), 1877, IV, p. 94, pl. 39; Am.Nat.. (Wasatch). 
1881, p. 1019; 1884. p. 264, fig. 6— 10: 
Tert. Vert., 1884, p.362, pl. 24e, 28a— d; 
Scott, Proc. Ac. Philad.. 1892, p. 305. 
ISdO.fgigantea, Osborn. Bull. Am. Mus. Nat. 
Eist, 1892, p. 113. fig. 11. 12. 
f Eocaen. Wyoming. 
