The elephant was, perhaps, anciently an inhabitant of Upper Egypt, where the island of Elephantine remained an evidence of the fact.

It was also in Persian times a denizen of the Indus valley, though perhaps only in a domesticated state.

The hippopotamus, unknown in India, was confined to the single province of Egypt, where it was included among the animals which were the objects of popular worship.

The crocodile--likewise a sacred animal to the Egyptians--frequented both the Nile and the Indus.
Monitors, which are a sort of diminutive crocodiles, were of two kinds: one, the _Lacerta Nilotica_, was a water animal, and was probably found only in Egypt; the other, _Lacerta scincus_, frequented dry and sandy spots, and abounded in North Africa and Syria, as well as in the Nile valley.

The two-humped camel belonged to Bactria, where he was probably indigenous, but was widely spread over the Empire, on account of his great strength and powers of endurance.
The Angora goat is, perhaps, scarcely a distinct species.