24 - M. Poliakof on a supposed new Species 
on the upper parts of the body and flanks was a reddish 
brown ; the other was partly of an ash-grey, with white hair 
on the belly, the end of the muzzle, and chest, contrasting 
with the reddish brown of the upper parts. The fore legs, too, 
had a reddish tinge about them, whilst the hind legs were 
light grey, and the tips of the ears inside and outside black. 
Equus Przewalskii, on the other hand, has a barely visible 
brown patch on the outer side of each ear. 
The skull of Equus Przewalskii is also distinct from that of 
all the asinine group, while it closely resembles that of the 
horse. It is about the same length, but wider at the cheek- 
bones than kulan, djiggetai, zebra, Burchell’s or the common 
ass; besides this, the brain-cavity is greater, the bones of the 
face are longer, and the skull is less prominent about the nasal 
bones than these and all other kinds of wild asses. The 
section of the cranium measured from the orifice at the back 
to the frontal hollow on the margin of the ethmoid bone is the 
greatest. Here, again, Hquus Przewalskid surpasses all Asiatic 
as well as African asses, two specimens of a djiggetai and 
kulan (old ones) excepted. 
[The remarks immediately following and the table to which 
they refer have been omitted, as being too detailed and elabo- 
rate to interest any body but specialists. | 
The hoofs have also more of the equine than the asinine 
character about them, as will be seen by comparing the 
measurements in the annexed Table, given in millimetres. 
eR ah Asinus onager, Pall. muah oe 
= 2 ~ a a 
E a : SE as z E = 3 Dauria (Radde). 
op S57 55 S15 aS 
Sp A 2 |) a ie 
Width of hoofs on 
foxenlegs«s ahaanke 92) 75| 73| 79] 84) 95| 77) 72) 881 97) 73) 82 
Length of hoofs on 
foromlers)) 2).): aha 110 | 125 | 123 | 1254115 | 117 |-110 | 104) 108} 108] 116110 
Width of hoofs on 
laos ESAs oe go TEEN ON CED HO) (EN ES) 2g 1 WO GO) V7 WE 
Length of hoofs on 
hindvless eit): 108} 180 | 117 | 114] 104 | 102/110) .. |1044102)104| 109 
