Just as the Goats are often limited to islands and small stretches of country, so are the Sheep. Thus Cyprus has a species, _O. ophion_, peculiar to itself. This, which is known as the Cyprus Mouflon, is limited to a range of mountains, the Troodos, in that island. In 1878 it was believed that the animal was nearly exterminated, a flock of twenty-five members alone surviving. They have, however, since increased. Confined {324} to the Thibetan plateau are _O. hodgsoni_ and _O. nahura_. Corsica has the Mouflon, _O. musimon_; and the Barbary Sheep or Arui, _O. tragelaphus_, is found only in Northern Africa. _Ovis burrhel_ and _O. blanfordi_ are Indian forms. [Illustration] FIG. 173.--Barbary Sheep. _Ovis tragelaphus._ x 1/10. [Illustration] FIG. 174.--Thar. _Capra jemlaica._ x 1/10. (From _Nature_.) _Ovis nahura_ is chiefly responsible for the impossibility of strictly separating the Sheep and Goats. It has no suborbital glands or lachrymal fossae, which are as a rule present in the Sheep and absent from the Goats. On the other hand interdigital glands are present, which is the case with Sheep. Its habits, too, are a blending of those of the Sheep and the Goat. It lives largely on undulating ground like Sheep, and frequently lies down during the day on its feeding ground. On the other hand it is, like the Goats, a splendid climber. The Goats, genus _Capra_, differ from the Sheep in their slighter build and in the fact that the horns are not spirally curved, but arched over the back. There is also the characteristic beard, {325} and the male is odorous. The true Goats are almost exclusively Palaearctic in range. They show the limited distribution of the Sheep, a distribution which follows from their mountain-loving habits. [Illustration] FIG. 175.--Sinaitic Ibex. _Capra sinaitica._ x 1/10. Thus we have the Spanish Ibex (_C. pyrenaica_), limited to the Pyrenees and other mountain ranges of the peninsula; _C. ibex_, the Steinbok of the Alps and the Tyrol; the Markhoor, _C. falconeri_, of certain mountain ranges of Afghanistan; the Caucasian, Sinaitic, and Cretan Ibexes, and the Thar.