42 
stripe; at most a faint brown stripe passing along the side above 
the belly ; tail-tuft white at the base . . . . 114. O. beatriz. 
6’. Size larger (height about 4 ft. at the withers). Colour of legs below 
knees and hocks pale dirty white, and lighter in tint than the body, 
though often patched with black in front; body and neck of a nearly 
uniform tawny hue, with a dark spinal stripe and a deep black throat- 
stripe; tips and adjacent edges of ears black; cheek below the eye 
of the same colour as the neck, bounded in front by the black ocular 
stripe and behind bya similar stripe running from near the base of 
the ear; a deep black stripe running along the side above the whitish 
belly ; tail-tuft black. 
a*, Hairs on throat long, frequently forming a median tuft or beard ; 
nasal patch black, united on both sides with the lower end of the 
ocular stripe and passing beneath the jaw, so as to form a com- 
plete black ring round the white muzzle ; a black stripe above the 
knee on the fore leg, extending on the outer side almost to the 
shoulder; a large black patch on the rump; a black stripe above 
the belly on both sides continued on to the thigh, and there 
united with a large patch of the same colour, which covers the 
hind leg, both outside and inside, almost down to the hocks; 
a black patch or stripe on the front of the cannon-bone of the 
hind leg 115. O. gazella. 
6°. Hairs on throat short, not forming a tuft or beard; nasal patch not 
a’. 
b°. 
meeting the ocular stripe, so that the muzzle is not circumscribed 
by a continuous black band; black stripe above the knee on the 
fore leg only extending about halfway up to the shoulder; hind- 
quarters of a nearly uniform tawny tint, without any black patches 
on the rump or thighs; lateral stripe above the belly not passing 
on to the thigh ; hind legs without any black bands or stripes. 
Black hairs on the ears not produced into a tuft; parting of the 
hairs on the dorsal median line lying far back upon the rump. 
116. O. beisa. 
Hairs on the ears produced into a long black tuft; parting of the 
hairs along the spine situated a little behind the middle of the 
back: . . . J). 0% @ oh gy of oa. Slt ORE eee 
