PLATE XVII. 
Fig. I. — Undetermined Antelope. Fragment of left ramus mandibiili, with ist and 
2nd molars, nat. size. 
2. — Undetermined Antelope. Posterior half of left 3rd lower molar, crown-view, 
nat. size. 
3. — Opsiceros simplicidens, sp. nov. Left 2nd upper molar (type specimen) of 
young individual, unworn, crown-view, nat. size. 
4. — Opsiceros simplicidens, ? Right ist upper molar of old animal, crown-view, 
nat. size. 
5. — Opsiceyos simplicidens, ? Left 4th upper premolar, presumably of same 
individual as fig. 4, crown-view, nat. size. 
6. — Elephas ziilti, sp. nov. Left 3rd lower molar, inner side ; slightly less than 
i nat. size. 
