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American Big Game in Its Haunts by Various
page 44 of 367 (11%)
for every subordinate character seems to be present in some and absent
in others, so that the most that can be done with this vast assemblage
is to arrange its contents in series of genera, which may or may not be
called sub-families, but which probably correspond in some degree to
their real affinities. We can only say of any one of them that it is an
antelope because it is not a sheep, nor a goat, nor an ox. They concern
us here only to be eliminated, for they are not American, our prong-buck
having a sub-family all to itself, as we shall see later, and the
so-called "white goat" being usually regarded as neither goat nor truly
antelope.

Within the limits of the real bovine animals, four quite distinct types
may be made out, chiefly by the position of the horns upon the skull and
by the shape of the horns themselves. There are also differences in the
relations of the nasal and premaxillary bones, the development of the
neural spines of the vertebrae, and the hairy covering of the body.

In the genus _Bos_ the horns are placed high up on the vertex of
the skull, which forms a marked transverse ridge from which the hinder
portion falls sharply away. The horns are nearly circular in section and
almost smooth; usually they curve outward, then upward and often inward
at the tip; the premaxillaries are long and generally reach to the
nasals, and the anterior dorsal vertebrae are without sharply elongated
spines, so that the line of the back is nearly straight. These, the true
oxen, as they are sometimes termed, now exist only in domesticated
breeds of cattle.

In the gaur oxen (_Bibos_) the horns are situated as in _Bos_,
high up on the vertex, but are more elliptical in section; the
premaxillaries are short; the dorsal vertebrae, from the third to the
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