50 
Mr. R. I. Pocock on the 
backwards towards the root of the tail; no 
concentric arrangement of stripes round 
the root of the tail; muzzle dark, usually 
black; the stripes on the nose continuous 
with the nostril-patches.............4- . 
a’. Hairs along the spine between the rump 
and the withers reversed in direction of 
growth; ears longer, hoofs narrower, 
tail-tuft more scanty; all the body- 
stripes, with the exception of two which 
pass on to the rump and quarters, running 
up to meet the spinal stripe and cutting 
it at right angles; the area which lies 
over the rump between the spinal stripe 
and the uppermost haunch-stripe which 
runs to the root of the tail not longitu- 
dinally striped, but covered with the so- 
called gridiron pattern of transverse bars. 
b*, Hairs on spine not reversed in direction ; 
ears shorter, hoofs broader,  tail-tuft 
fuller; the upper ends of some five or 
six of the stripes in the posterior half of 
the body bent backwards in a direction 
parallel to the spinal stripe; the area 
between the stripe then runs to the root 
of the tail, and the spinal stripe on the 
rump not covered with transverse bars, 
but crossed longitudinally by the back- 
wardly extending upper extremity of at 
least one of the body-stripes (not true of 
(Masailand to Cape 
Colony.) 
zebra, Linn. (Moun- 
tainous parts 
Cape Colony.) 
of 
quagga in every particular) .......... (Plains and tablelands 
of East and South 
Africa.) 
a*®, Ground-colour of neck, body, and quar- 
ters mostly pale ochre-yellow, some- 
times almost white, not chestnut; the 
stripes, which extend back as far as 
the rump and quarters, complete, and 
showing but slight indications of 
breaking up into spots ........... . (Burchell’s zebra sensu 
a*. Quarters marked with strong com- 
plete stripes below the long stripe 
that runs to the root of the tail; 
legs striped at least as far as the 
hocks and knees ; body-stripes ex- 
tending on to the belly and (except 
in antiquorum) touching the belly- 
stripe; tail spotted orstriped laterally 
a’, No trace of shadow-stripes between 
the principal stripes either on the 
body or quarters ; principal stripes 
on the quarters broader, or at 
latissimo.) 
