1859.] On the different Animals known as wild Asses. 237 



contrasts with the white of the belly ; and in an adult the jowl and 

 sides of the neck are white, reaching nearly up to the mane at the 

 setting on of the head, whence the brown above gradually widens 

 backward to the shoulder ; the white of the under-parts also ascends 

 above the elboiv-joint, and posterior to the very dull indication of 

 the shoulder-cross, which is not darker than where the body hue 

 contrasts with the white of the flanks. The stuffed foal is generally 

 a trine darker, and a little different in the relative extension of its 

 shades ; the dorsal stripe being also less sharply denned, though 

 only in consequence of the hair being longer. No doubt that indi- 

 viduals vary more or less, like individual Ghor-Ichurs. 



Comparing the hoofs together, the only difference that I can 

 perceive consists in the fact that the Kyang skins before me are 

 those of wild animals, with the hoofs duly worn by constant action ; 

 whereas those of a Ghor-Jcliur, belonging formerly to a captive 

 individual, are much less worn and accordingly are not so shapely. 

 The limb-bones present no difference whatever. In the skulls, the 

 only diversity that I can perceive may be fully accounted for by 

 disparity of age. We have the skull of a mature female Kyang, 

 with its last molars long in wear ; and this corresponds with Major 

 Cunningham's figures of the skull of a male Kyang * With these 

 I compare that of an adolescent male Ghor-khur, with the penul- 

 timate molars just coming into wear, the last being enclosed within 

 their sockets, the two foremost deciduary prae-molars (on each side 

 above and below) about to be replaced, and a medial pair of permanent 

 incisors (above and below) just passing through the gums. A Horse 

 at this stage of development would be reckoned as 2| years old. At 

 this particular age, I can perceive no further difference than can be 

 accounted for by incomplete development on the part of the 

 immature Ghor-khur.f 



* Laddk, &c, pi. VI, p. 195. 



f Since the above was in type, the Society has received from Major Lumsden, late 

 in charge of the Kandahar mission, an imperfect skin and a skull of an adolescent 

 male Ghork-hur from the vicinity of Kandahar. Its last molars were just coming into 

 wear, corresponding to about four years old in the Horse. The skin shows the short 

 summer vesture, and is of the same cream-colour or light isabelline hue as Major 

 Tytler's three living specimens, — the true desert colouring ; and this hue suffuses the 



