22 BULLETIN 53, UNITED STATES NATIONAL MUSEUM. 



2329. Ambloctonus sinosus Cope. Type. 



Portion of right maxillary containing crowns and roots of 

 last three molars (m^-m^) with other portions of the 

 skull, including portion of left maxillary containing 

 canine and last molar of left side, associated with por- 

 tion of left lower jaw containing crowns and roots of last 

 three molars (m^-nij) and fragments of limb bones 

 apparently of the same individual. Wasatch (Eocene). 

 New Mexico. 



Cope, Syst. Cat. Vert. Eocene New Mexico, 1875, p. 8; Rept. U. S. 

 Geogr. Surv. W. looth Merid., IV, Pt. II, 1877, p. 91, pi. 33, 

 figs. i-io. — Osborn and Wortman, Bull. Amer. Mus. Nat. Hist., 

 IV, No. I, 1892, p. 99, text fig. 5E, pp. 106, 107, text fig. 8. 



5377. Ambloctonus sinosus Cope. Paratype. 



Portion of right lower jaw containing last three molars 

 (nij-mg). Wasatch (Eocene). New Mexico. 



Cope, Syst. Cat. Vert. Eocene New Mexico, 1875, p. 8; Rept. U. S. 

 Geogr. Surv. W. looth Merid., IV, Pt. II, 1877, p. 91, pi. 33, fig. 11. 



658. Amphicyon vetus (L,eidy). Type. 



Leidy, Journ. Acad. Nat. Sci. Phila. (2), VII, 1869, pp. 32, 369, pi. 

 I, figs. I, 2, 3. 



= Daphcenus vetus. 



573. Anchitherium (Hypohippus) affinis Leidy. Type. 



Upper milk molar. Loup Fork (Upper Miocene). Niobrara 

 River, Fort Niobrara, Nebraska. 



Leidy, Proc. Acad. Nat. Sci. Phila., 1858, p. 26. 

 = Hypohippus aff inis. 



5393. Anchitherium agreste Leidy. Type. 



Portion of lower jaw containing three teeth, p^, mj, nig. 

 Lower Miocene. Red Rock Creek, head of Jefferson 

 Fork, Missouri River, Montana. 



Leidy, Rept. U. S. Geol. Surv. Terr., I, 1873, p. 251, pi. 7, figs. 16, 17. 



2359. Anchitherium bairdii (Leidy). Type. 



Leidy, Smithsonian Contrib. to Knowl., VI, Art. VII, 1854, p. 67, 

 pi. 10, fig. 24; pi. II, figs. 6, 7. 



= Mesohippus bairdii. 



See Palaeotherium bairdii. > 



567. Anchitherium (Parahippus) cognatus Leidy. Type. 



Three right upper milk molars, dp'^-dp*, associated with 

 right lower milk molar, dpg. Loup Fork (Upper 

 Miocene). Niobr ra River, Nebraska. 



Leidy, Proc. Acad. Nat. Sci. Phila., 1858, p. 26. 



= Parahippus cognatus. 



