These primitive ape-like men were the connecting links between men and the apes, and are divided into two main branches—viz., woolly-haired Alali, who migrated from Lemuria, west and south; and straight-haired Alali, who migrated from Lemuria, north, east, and south. Both these branches had skulls of the same character as those of the chimpanzee and gorilla—that is, they were dolichocephalic (long-headed) prognathous (prominent jaws), and also, like their ape brethren, were troglodytes, or cave-dwellers. From the woolly-haired Alali evolved the Papuans of New Guinea and Tasmania, and the Hottentots of Africa, whose descendants of to-day are but little removed in brain development from the higher apes. They are dolichocephalic prognathous savages, with black, hairy skins, long arms, and short, thin legs, with ill-developed calves; are semi-erect, walk on hind legs, and have no true articulate speech. A higher development of the woolly-haired Alali is the Negro, and higher still the Caffre, both of whom are dolichocephalic prognathous savages, with black, semi-hairy skins, and imperfect articulation. From the straight-haired Alali are derived the Australian natives and the large family of Malays or Polynesians. The Australians migrated south, and were dolichocephalic prognathous savages, with smooth, dirty brown skins, and straight black hair. The lowest tribes of the present day have no true articulate speech. The Polynesians migrated north and east, and were dolichocephalic prognathous troglodytes (as the gorilla and chimpanzee), with clear, smooth brown skins, and true articulate speech. This branch split up into two large families, the Mongolian or Turanian, and the Caucasian or Iranian. The former covered Northern and Eastern Asia, Polynesia, and America, and were originally brachycephalic (broad-headed) prognathous men. They subdivided into two distinct species, the Mongols of China, Japan, Lapland, Finland, and Hungary, who are brachycephalic, but not prognathous, with smooth, brownish yellow skin, and straight black hair; and the Mongols of America, who are mesocephalic (round-headed), but not prognathous, with smooth red skins and straight black hair. The Caucasian family covered Western Asia and most of Europe, being mesocephalic prognathous troglodytes (afterwards agriculturalists) with smooth dark skins and long straight hair; and subdivided into two branches, the Semitic, of Arabia and Syria, and the Aryan or Indo-European; both of whom are mesocephalic, but not prognathous.