THE ZEBRA 161

own, E. Prejevalskiz, although Sir William F lower, our
greatest authority on such matters, has dismissed the
untamed Prejevalskian as being merely a cross between
a tarpan and a wild ass. One of the curious things
in early equine history is that there were horses in
South America long before its discovery by the
Spaniards, but that these horses had died out, and
that the wild horses of the pampas are descended, not
from them, but from individuals introduced from Spain
in the sixteenth century ; just as the Australian wild
horses are descended from escapes originally intro-
duced from England.

The stripes that occasionally show in a horse’s
coat are the marks of his ancestry; his more
distinctly striped living relatives are referred to
several species. If you see a horse-like animal
striped all over down to his hoofs and even beyond
the root of his tail, you will know that it is a zebra ;
if the black stripes are broad and bold, and there are
long transverse stripes on the haunches, it is the
original zebra, EZ. zebra; but if the stripes are narrow
and numerous, and extend a long way along the
barrel, so that the haunch stripes are very short, it is
Grévy’s zebra, Z. Grevit ; if the stripes do not extend
on to the posterior, it is Chapman’s zebra, E. Chap-
mand ; if they do not extend below the body line, it is
Burchell’s zebra, E. Burchelld ; if it is striped only on
the head and shoulders, it is a quagga, £. guagea.
The asses have a stripe down the back, and some of
them have a shoulder stripe, with cr without stripes
on the legs ; but the variations are so great as not to
be distinctive. There are only two species of wild

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