BLAKE — EVIDENCES OE IIOESES IN TIIE NEW WORLD. 



25 



Equus caballus 

 Equus asinus . . . 

 Equus onager ... 

 Equus hcinionus 

 Equus cquuleus ? 

 Equus quagga... 

 Equus Burchellii 

 Equus zebra . . . 



Palaearctic 



+ 

 + 

 + 

 + 



Ethiopian 



Indian. 



Australian 



Nearctic. Neotropic, 



The following species are of doubtful specific value : — 





Palaearctic. 



Ethiopian. 



Indian. 



Australian 



Nearctic. 



Neotropic. 









+ 









Equus hippagrus . . . 





+ 











Equus hamar 



+ 













Equus antiquorum ... 





+ 











Equus isabelliuus? ... 















The geographical distribution of fossil horses was as follows : — 





Palaearctic. 



Ethiopian. 



Indian. 



Australian. 



Nearctic. 



Neotropic. 





+ 













Equus plicidens 



+ 













Equus piseenensis . . . 



+ 













Equus palseonus 







+ 















+ 









Equus Namadicus ... 







+ 









Equus curvidens 













+ 



Equus neogrcus 













+ 



Equus Chilcnsis 













+ 



Equus asinus fossilis 











+ 

















The geological distribution of fossil horses was — 



Equus paltconus 



Equus sivaleusis 



Equus Namadicus .. 



Equus lbssilis 



Equus plicidens 



Equus piseenensis .. 



Equus curvidens 



Equus neogrcus 



Equus Chilcnsis 



Equus uearcticus 



Equus asiuus fossilis 



Eocene. 



Miocene. 



Pliocene. 











+ 















+ 







+ 

 + 

 + 







+ 







+ 



VOL. VI. 



