The tribe is autochthonous, claiming descent from a son of the river Borysthenes Targitaos, who lived a thousand years before.
The investigations made by Dr Walter Lehmann in Central America (1907-1909), prove that these Mexican elements were extended through Guatemala, Salvador, a small part of Nicaragua (the territory of the Nicaraos) and on several places in the peninsula of Nicoya (Costa Rica) amongst the autochthonous Chorotega or Mangue.
- The Khmers, the ancient inhabitants of Cambodia, are conjectured to have been the offspring of a fusion between the autochthonous dwellers in the Indo-Chinese peninsula, now represented by the Kouis and other savage tribes, and an invading race from the plateaus of central Asia.
The earliest inhabitants of Laconia, according to tradition, were the autochthonous Leleges.
Thus the digestive function, in its largest sense, is now seen to consist, not only in preparation and supply, but in no small measure also of protective and antidotal conversions of the matters submitted to it; coincidently with agents of digestion proper are found in the circuit of normal digestion "anti-substances" which neutralize or convert peptones in their poisonous phases; an autochthonous ferment, such as rennet for instance, calling forth an anti-rennet, and so on.
The lexicographers mention as characteristics of the Eupatridae that they are the autochthonous population, the dwellers in the city, the descendants of the royal stock.
It is not probable that the Eupatrid families were all autochthonous, even in the loose sense of that term.
Gastrocnemius, tonic contraction obtains; but this, like the last mentioned, is not autochthonous in the muscles themselves; it is indirect and neural, and appears to be maintained reflexly.
Striped muscles possessing an autochthonous tonus appear to be the various sphincter muscles.
Nevertheless, it is not probable that without the training introduced by Lycurgus the Spartans would have been successful in securing their supremacy in Laconia, much less in the Peloponnese, for they formed a small immigrant band face to face with a large and powerful Achaean and autochthonous population.
It may be possible either that these tribes are the autochthonous inhabitants who dwelt in Guatemala, Salvador, Honduras and Nicaragua before the immigration of the prehistoric Maya peoples; or else that they invaded this region after it had been deserted by a prehistoric oriental branch of the Maya family.