838 
Merycochoerus, Leptauchenia. 
5183. tLeidyi, Bettany, Quavt. Journ. Geol. Soc., 
XXXI, 1875, p. 270, pl. 18; Cope, Proc. 
Am. PMl. Soc., 1884, p. 523. 
5184. f chelydra, Cope, Amer. Natur., 1884, 
p. 281; Pal. Bull., N'’ 38; Proc. Amer. 
Phil. Soc., 1884, p. 523. 
5185. -t-macrostegus, Cope, Amer. Natur., 1884, 
p. 281 ; Proc. Am. Phil. Soc., 1884, p. 526 ; 
Scott. Morph. Jahrh., 1890, pl. 14. 
51 86. t montanus, Cope, Amer. Natur., 1884, 
p. 281; Proc. Am. Phil. Soc., 1884, p. 531 ; 
Scott, Trans. Am. Phil. Soc., 1893, p. 151. 
5187. tobliquidens, Cope, Amer. Nat., 1886, 
p. 368; Proc. Amer. Phil. Soc., V, 1886, 
p.359. 
5188. t rusticus, Leidy, 
Vert. Fauna. 1873. 
Proc. Ac. Philad., 
Proc. Am. Phil. Soc.. 
Rep. Geol. Surv., Ext. 
, p.l99, pl.3, 7, 20; 
1870, p. 109; Cope, 
, 1884, p. 535. 
flVIiocaen. med. 
Oregon (.John Day). 
Miocaen. med. 
Oregon (John Day). 
f Miocaen. med. 
Oregon (John Day). 
t Miocaen. sup. 
Montana (Deep 
River). 
f Miocaen sup. 
Oregon. 
t Miocaen. sup. 
Wyoming (Deep 
River). 
f Miocaen. sup. 
Nebraska (Deep 
River). 
fPliocaen. inf. 
America sept., 
Wyoming (Loup 
Fork). 
5189. t proprius, Leidy, Proc. Acad. Phil., 1858, 
p. 24; Ext. Mam. Fauna, 1869, pl. 110, 
pl. 10. 
5190. tcoenopus, Scott, Morph. .Tahrb., 1890, 
p, 340, 342, pl. 16, fig. 33, 34; Scott et 
Osi)., Bull. Mus. Comp. ZooL, XX, 1890, 
p. 73. 
1028. t Leptauchenia, Leidy (1856) 1869. 
5191. tmajor, Leidy, Proc. Acad. Philad., 1856, 
p. 163; 1857, p. 89; Ext. Mam. Faun., 
1869, p. 124, pl. 12; Cope, Proc. Amer. 
Phil. Soc., 1884, p. 546; Scott, Morph. 
Jahrh., 1890, p. 353, pl. 15, 16. 
5192. t decora, Leidy, Proc. Ac. Philad., 1856, 
p. 88 ; 1857, p. 89 ; Ext. Mam. Faun., 1869, 
p. 127, pl. 12. 
5193. t nitida, Leidy, Ext. Mam. Faun., 1869, 
p. 129, pl. 12; Scott, Morph. Jahrh., 1890, 
pl. 16, fig. 35. 
f Miocaen. sup. 
Dakota, Nehraska 
(Deep River). 
f Miocaen. sup. 
Nebraska. 
f Miocaen. sup. 
Dakota. 
