The Siculians are the same as those whom Cato calls _Aborigines_. This name is interpreted γενάρχαι, ancestors; or also, wanderers, _aberrigines_; and likewise those who are from the very beginning, _ab origine_. The nominative singular, according to the Latin idiom, must have been _aboriginus_. There was a tradition that Latium had originally been inhabited by _Autochthones_; but Cato and C. Sempronius[47] said, that the aborigines had emigrated from Achaia, by which was meant the whole of the Peloponnesus, then named by the Romans Achaia. Others called the different places which were formerly termed Siculian, Argive; and Cato had done that with regard to Tibur itself. Argos and Larissa are Pelasgian names, which we meet with wherever there are Pelasgians;--Argos probably meaning town, and Larissa borough. As long as the Peloponnesus was Pelasgian, it was called Argos; even so was Thessaly. In this meaning the Argives are Pelasgians, and the Ἀργεῖοι Πελασγοί are in the old tragedy always named in conjunction. The one was most likely the general, and the other the special appellation. Hesiod says of Latinus, πᾶσι Τυῤῥηνοῖσιν ἀγακλειτοῖσιν ἀνάσσει. All that we know of the Latins is this, that they had a number of towns from Tibur to the river Tiber. How far they extended in the earliest time to the Liris is lost in obscurity. Cato (in Priscian) says, that the plain of the Volscians formerly belonged to the aborigines; certainly all the towns along the coast were at an early period Tyrrhenian, as Antium, Circeii, and many others. At that time, therefore, the name of Latium spread far, and so late as immediately after the Roman kings, even to Campania; it having been first limited in consequence of the great popular migrations soon after the expulsion of the kings. Hesiod of course refers to the earlier time. In the treaty of Rome with Carthage, the coast beyond Terracina, probably as far as Cumæ, was called Latium, and the inhabitants Latins. By the Greeks the Pelasgian inhabitants of the whole western coast of Italy were called Tyrrhenians; by the Latins, _Turini_, _Tusci_, i. e. _Tusici_ from _Tusus_, or _Turus_; for _s_ in the ancient language stands for _r_, as in _Fusius_ for _Furius_.