BLAKE — ETTDENCES OF HORSES IN THE NEW WOELD. 
25 
Palaearctic. 
Ethiopian. 
Indian. 
Australian. 
Nearctic. 
Neotropic. 
Equus caballus 
+ 
— 
— 
— 
— 
— 
+ 
— 
— 
— 
— 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
Eqxius zebra 
+ 
The following species are of doubtful specific value : — 
Palaearctic. 
Ethiopian. 
Indian. 
Australian 
Xearctic. 
Neotropic. 
+ 
Equus hippagrus . . . 
+ 
Equus hauiar 
+ 
Equus antiquorutn ... 
+ 
Equus isabellinus? ... 
The geographical distribution of fossil horses was as follows : — 
Palaearctic. 
Ethiopian. 
Indian. 
Australian. 
Nearctic. 
Neotropic. 
+ 
Equus plicidens 
+ 
Equus piscenensis ... 
+ 
Equus palfconus 
+ 
+ 
Equus Naniadicus ... 
Equus curvidens 
+ 
Equus neop;8cu3 
+ 
Equus Chilensis , , . 
Equus Tiearcticus 
+ 
Equus asiuus fossilis 
The geological distribution of fossil horses was — 
Equus palseoiius 
Equus sivaleusis 
Equus Nainadicus ... 
Equus fossilis 
Equus plicidens 
Equus piscenensis ... 
Equus curvidens 
Equus neogseus 
Equus Chilensis 
Equus nearcticus 
Equus asinus fossilis 
Miocene. 
Pliocene. 
+ 
+ 
+ 
+ 
+ 
+ 
+ 
4- 
+ 
+ 
VOL. VI. 
