The revolution of Kleisthenês in 509 B. C. abolished the old tribes for civil purposes, and created ten new tribes,—leaving the phratries and gentes unaltered, but introducing the local distribution according to demes, or cantons, as the foundation of his new political tribes. A certain number of demes belonged to each of the ten Kleisthenean tribes (the demes in the same tribes were not usually contiguous, so that the tribe was not coincident with a definite circumscription), and the deme, in which every individual was then registered, continued to be that in which his descendants were also registered. But the gentes had no connection, as such, with these new tribes, and the members of the same gens might belong to different demes.[97] It deserves to be remarked, however, that to a certain extent, in the old arrangement of Attica, the division into gentes coincided with the division into demes; that is, it happened not unfrequently that the gennêtes or members of the same gens lived in the same canton, so that the name of the gens and the name of the deme was the same: moreover, it seems that Kleisthenês recognized a certain number of new demes, to which he gave names derived from some important gens resident near the spot. It is thus that we are to explain the large number of the Kleisthenean demes which bear patronymic names.[98] [97] Demosth. cont. Neær. p. 1365. Tittmann (Griechische Staatsverfass, p. 277) thinks that every citizen, after the Kleisthenean revolution, was of necessity a member of some phratry, as well as of some deme: but the evidence which he produces is, in my judgment, insufficient. The ideas of the phratry and the tribe are often confounded together; thus the Ægeidæ of Sparta, whom Herodotus (iv, 149) calls a tribe, are by Aristotle called a phratry of Thebans (ap. Schol. ad Pindar. Isthm. vii, 18). Compare Wachsmuth, Hellenische Alterthumskunde, sect. 83, p. 17. A great many of the demes seem to have derived their names from the shrubs or plants which grew in their neighborhood (Schol. ad Aristophan. Plutus, 586, Μυρρινοῦς, Ῥαμνοῦς, etc.). [98] For example, Æthalidæ, Butadæ, Kothôkidæ, Dædalidæ, Eiresidæ, Epieikidæ, Erœadæ, Eupyridæ, Echelidæ, Keiriadæ, Kydantidæ, Lakiadæ, Pambôtadæ, Peritheidæ, Persidæ, Semachidæ, Skambônidæ, Sybridæ, Titakidæ, Thyrgonidæ, Hybadæ, Thymœtadæ, Pæonidæ, Philaidæ, Chollidæ: all these names of demes, bearing the patronymic form, are found in Harpokration and Stephanus Byz. alone. We do not know that the Κεραμεῖς ever constituted a γένος, but the name of the deme Κεραμεῖς is evidently given, upon the same principle, to a place chiefly occupied by potters. The gens Κοιρώνιδαι are said to have been called Φιλιεῖς (? Φλυεῖς) and Περιθοῖδαι as well as Κοιρώνιδαι: the names of gentes and those of demes seem not always distinguishable.