Aceratherium, Aplielops. 
B. Aphelops, Cope, 1873. 
4676.-}-megalodus, Cope, Amer. Natur. 1879, p. 
771 c, fig. 1,2,4, 5; 1887, p. 1006, fig. 
23; Lydekk., Foss. Mam., III, 1886, p. 141, 
fig. 16. 
4676. -j- crassum, Leidy, Ext. Mam. Fauna, 1869, 
p. 228, pl. 23. fig. 4— 9; Cope, Rep. Surv. 
West 100 merid., 1877, p. 317. 
4677. f Hesperium, Leidy, Ext. Vert. Fauna, 1873, 
p. 220, 328, pl. 2, fig. 8, 9. 
4678. fmalacorhinum. Cope, Bull. Geol. Surv., 
1879, p. 236; Am. Nat., 1879, p. 771i, fig. 
7,8; 1880, p. 540 (Peraceras). 
4679. f meridianum, Leid}^ Ext. Mam. Fauna, 
1869, p. 229, pl. 23, fig. 10; Cope, Rep. 
GeogT. Surv. West 100 merid., 1877, 
p. 317. 
4680. f oregonense, Marsh, Amer. Journ. Sc., 
1873, V, p. 410. 
4681. j jemezanum, Cope, Proc. Acad. Philad., 
1875, p. 258; Rep. Geogr. Surv. West 100 
merid., 1877, p. 319. 
4682. f superciliosum. Cope, Amer. Natur., 1880, 
p. 540; 1887, p. 1004, fig. 18. 
4683. f proterum, Leidy, Proc. Acad. Philad., 
188.5, I, p. 32; 1890, p. 183. 
4684. f longipes, Leidy, Proc. Acad. Philad., 1890, 
p. 183. 
4685. ffossiger. Cope, Rep. Geogi'. Surv., 1877, 
p. 317; Amer. Natur., 1879, p. 771e; 
Proc. Am. Phil. Soc., 1885, p. 8; Amer. 
Nat., 1887, p. 1006, fig. 22, 23; Leidy, 
Proc. Ac. Nat. Sc., 1883, p. 301; Scott et 
Osb., Bull. Mus. Comp. Zool., 1890, p. 92, 
fig. 15, 17, pl. 2, 3; Hatcher. Am. Natur., 
1894, p. 241, pl. 2, fig. 3, 5. 
acutum, Marsh. Amer, .lourn. Sc., 1887, 
XXXIY, p. 325, fig. 3, 4. 
761 
fMiocaen. infer. 
Colorado. 
fPliocaen. America 
sept. 
fPliocaen. Am erica 
sept. 
fPliocaen. America 
sept. 
fPliocaen. America 
sept. 
fPliocaen. Oregon. 
f Pliocaen. 
Nov.-Mexico. 
fPliocaen. America 
sept. 
fPliocaen. Florida. 
fPliocaen. Florida. 
fPliocaen. America 
sept. 
