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0187 Explorations in Turkestan : Expedition of 1904 : vol.2
Explorations in Turkestan : Expedition of 1904 : vol.2 / Page 187 (Color Image)

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doi: 10.20676/00000178
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This apparent resemblance does not, however, permit us to assume a rela-
tionship to one of these forms, for it is readily seen from my former investigations
into the influence of horns upon the shaping* of the skull, that the absence of
horns produces uniform characteristics and that while considerable variance may
exist in the absolute craniological dimensions, the relative dimensions always
remain the same. Now, what can this hornless sheep form be, and whence can
it have come? The bone remains give us no information on these points; and
we must, therefore, resort to deduction and inference.

Let us first examine the recent races of sheep of Turkestan. The Central
Asiatic steppes harbor only two races of sheep, which are generally designated:

(a) The fat-buttocked sheep (Ovis aries stealopyga Fitz); (b) the fat-tailed
sheep (Ovis aries platyura Fitz).

Ovis aries steatopyga is characterized by a posterior overloaded with fat,
which on the buttocks projects upward in the form of a fatty protuberance which
is split in the middle. The ram of this breed has horns of medium length which
are thick and strong at the root and grow narrower towards the blunt point.
The horns, without rising above the crown of the head, form, in winding, a double
snail-shaped revolution back, down, and forwards. In the ewes and the wethers
the horns are smaller and weaker, and curved only backwards and forwards.
There occur at times four-horned and even five-horned rams in this race of sheep;
and, on the other hand, we find here and there hornless females.