PLATESGXEY. 
Miocene Equip. SKULL OF MrRYCHIPPUS 
Nomenclature 
Cope 1880-3 Revised 1915 
Hippotherium speciosum (in part) Merychippus sp. 
Fras. 1-8. Merychippus sp. Skull, lateral, palatal and superior views, one-half natural size. 
Amer. Mus. No. 8347, Cope Coll., from Republican River beds, Driftwood Creek, 
Hitchcock Co., Nebraska. 
Pia. 4. Merychippus sp. Fourth premolar and first molar of No. 8347, natural size, crown view. 

